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Merge pull request #223 from dinau/stm32-discov-f051_initial 

STM32F0-Discovery (STM32F051R8) initial port
pull/224/head
Emilio Monti 2014-03-21 11:43:06 +00:00
parent e63ec28f4b 86ee511c80
commit e5c9ff6781
82 changed files with 41336 additions and 5 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

156
libraries/mbed/targets/cmsis/TARGET_STM/TARGET_DISCO_F051R8/TOOLCHAIN_GCC_ARM/STM32F0xx.ld Normal file
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/* Linker script for STM32F */
/* Linker script to configure memory regions. */
MEMORY
{
FLASH (rx) : ORIGIN = 0x08000000, LENGTH = 64k
RAM (rwx) : ORIGIN = 0x200000C0, LENGTH = 0x2000-0xC0
}
/* Linker script to place sections and symbol values. Should be used together
* with other linker script that defines memory regions FLASH and RAM.
* It references following symbols, which must be defined in code:
* Reset_Handler : Entry of reset handler
*
* It defines following symbols, which code can use without definition:
* __exidx_start
* __exidx_end
* __etext
* __data_start__
* __preinit_array_start
* __preinit_array_end
* __init_array_start
* __init_array_end
* __fini_array_start
* __fini_array_end
* __data_end__
* __bss_start__
* __bss_end__
* __end__
* end
* __HeapLimit
* __StackLimit
* __StackTop
* __stack
*/
ENTRY(Reset_Handler)
SECTIONS
{
.text :
{
KEEP(*(.isr_vector))
*(.text*)
KEEP(*(.init))
KEEP(*(.fini))
/* .ctors */
*crtbegin.o(.ctors)
*crtbegin?.o(.ctors)
*(EXCLUDE_FILE(*crtend?.o *crtend.o) .ctors)
*(SORT(.ctors.*))
*(.ctors)
/* .dtors */
*crtbegin.o(.dtors)
*crtbegin?.o(.dtors)
*(EXCLUDE_FILE(*crtend?.o *crtend.o) .dtors)
*(SORT(.dtors.*))
*(.dtors)
*(.rodata*)
KEEP(*(.eh_frame*))
} > FLASH
.ARM.extab :
{
*(.ARM.extab* .gnu.linkonce.armextab.*)
} > FLASH
__exidx_start = .;
.ARM.exidx :
{
*(.ARM.exidx* .gnu.linkonce.armexidx.*)
} > FLASH
__exidx_end = .;
__etext = .;
_sidata = .;
.data : AT (__etext)
{
__data_start__ = .;
_sdata = .;
*(vtable)
*(.data*)
. = ALIGN(4);
/* preinit data */
PROVIDE_HIDDEN (__preinit_array_start = .);
KEEP(*(.preinit_array))
PROVIDE_HIDDEN (__preinit_array_end = .);
. = ALIGN(4);
/* init data */
PROVIDE_HIDDEN (__init_array_start = .);
KEEP(*(SORT(.init_array.*)))
KEEP(*(.init_array))
PROVIDE_HIDDEN (__init_array_end = .);
. = ALIGN(4);
/* finit data */
PROVIDE_HIDDEN (__fini_array_start = .);
KEEP(*(SORT(.fini_array.*)))
KEEP(*(.fini_array))
PROVIDE_HIDDEN (__fini_array_end = .);
KEEP(*(.jcr*))
. = ALIGN(4);
/* All data end */
__data_end__ = .;
_edata = .;
} > RAM
.bss :
{
. = ALIGN(4);
__bss_start__ = .;
_sbss = .;
*(.bss*)
*(COMMON)
. = ALIGN(4);
__bss_end__ = .;
_ebss = .;
} > RAM
.heap (COPY):
{
__end__ = .;
end = __end__;
*(.heap*)
__HeapLimit = .;
} > RAM
/* .stack_dummy section doesn't contains any symbols. It is only
* used for linker to calculate size of stack sections, and assign
* values to stack symbols later */
.stack_dummy (COPY):
{
*(.stack*)
} > RAM
/* Set stack top to end of RAM, and stack limit move down by
* size of stack_dummy section */
__StackTop = ORIGIN(RAM) + LENGTH(RAM);
_estack = __StackTop;
__StackLimit = __StackTop - SIZEOF(.stack_dummy);
PROVIDE(__stack = __StackTop);
/* Check if data + heap + stack exceeds RAM limit */
ASSERT(__StackLimit >= __HeapLimit, "region RAM overflowed with stack")
}

294
libraries/mbed/targets/cmsis/TARGET_STM/TARGET_DISCO_F051R8/TOOLCHAIN_GCC_ARM/startup_stm32f0xx.s Normal file
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/**
******************************************************************************
* @file startup_stm32f0xx.s
* @author MCD Application Team
* @version V1.0.0
* @date 23-March-2012
* @brief STM32F0xx Devices vector table for RIDE7 toolchain.
* This module performs:
* - Set the initial SP
* - Set the initial PC == Reset_Handler,
* - Set the vector table entries with the exceptions ISR address
* - Branches to main in the C library (which eventually
* calls main()).
* After Reset the Cortex-M0 processor is in Thread mode,
* priority is Privileged, and the Stack is set to Main.
******************************************************************************
* @attention
*
* <h2><center>&copy; COPYRIGHT 2012 STMicroelectronics</center></h2>
*
* Licensed under MCD-ST Liberty SW License Agreement V2, (the "License");
* You may not use this file except in compliance with the License.
* You may obtain a copy of the License at:
*
* http://www.st.com/software_license_agreement_liberty_v2
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
******************************************************************************
*/
.syntax unified
.cpu cortex-m0
.fpu softvfp
.thumb
.global g_pfnVectors
.global Default_Handler
/* start address for the initialization values of the .data section.
defined in linker script */
.word _sidata
/* start address for the .data section. defined in linker script */
.word _sdata
/* end address for the .data section. defined in linker script */
.word _edata
/* start address for the .bss section. defined in linker script */
.word _sbss
/* end address for the .bss section. defined in linker script */
.word _ebss
.equ BootRAM, 0xF108F85F
/**
* @brief This is the code that gets called when the processor first
* starts execution following a reset event. Only the absolutely
* necessary set is performed, after which the application
* supplied main() routine is called.
* @param None
* @retval : None
*/
.section .text.Reset_Handler
.weak Reset_Handler
.type Reset_Handler, %function
Reset_Handler:
/* Copy the data segment initializers from flash to SRAM */
movs r1, #0
b LoopCopyDataInit
CopyDataInit:
ldr r3, =_sidata
ldr r3, [r3, r1]
str r3, [r0, r1]
adds r1, r1, #4
LoopCopyDataInit:
ldr r0, =_sdata
ldr r3, =_edata
adds r2, r0, r1
cmp r2, r3
bcc CopyDataInit
ldr r2, =_sbss
b LoopFillZerobss
/* Zero fill the bss segment. */
FillZerobss:
movs r3, #0
/* str r3, [r2], #4 */
str r3, [r2]
adds r2, r2, #4
LoopFillZerobss:
ldr r3, = _ebss
cmp r2, r3
bcc FillZerobss
/* Call the clock system intitialization function.*/
bl SystemInit
/* Call the application's entry point.*/
bl _start
.size Reset_Handler, .-Reset_Handler
/**
* @brief This is the code that gets called when the processor receives an
* unexpected interrupt. This simply enters an infinite loop, preserving
* the system state for examination by a debugger.
*
* @param None
* @retval None
*/
.section .text.Default_Handler,"ax",%progbits
Default_Handler:
Infinite_Loop:
b Infinite_Loop
.size Default_Handler, .-Default_Handler
/*******************************************************************************
*
* The minimal vector table for a Cortex M0. Note that the proper constructs
* must be placed on this to ensure that it ends up at physical address
* 0x0000.0000.
*******************************************************************************/
.section .isr_vector,"a",%progbits
.type g_pfnVectors, %object
.size g_pfnVectors, .-g_pfnVectors
g_pfnVectors:
.word _estack
.word Reset_Handler
.word NMI_Handler
.word HardFault_Handler
.word 0
.word 0
.word 0
.word 0
.word 0
.word 0
.word 0
.word SVC_Handler
.word 0
.word 0
.word PendSV_Handler
.word SysTick_Handler
.word WWDG_IRQHandler
.word PVD_IRQHandler
.word RTC_IRQHandler
.word FLASH_IRQHandler
.word RCC_IRQHandler
.word EXTI0_1_IRQHandler
.word EXTI2_3_IRQHandler
.word EXTI4_15_IRQHandler
.word TS_IRQHandler
.word DMA1_Channel1_IRQHandler
.word DMA1_Channel2_3_IRQHandler
.word DMA1_Channel4_5_IRQHandler
.word ADC1_COMP_IRQHandler
.word TIM1_BRK_UP_TRG_COM_IRQHandler
.word TIM1_CC_IRQHandler
.word TIM2_IRQHandler
.word TIM3_IRQHandler
.word TIM6_DAC_IRQHandler
.word 0
.word TIM14_IRQHandler
.word TIM15_IRQHandler
.word TIM16_IRQHandler
.word TIM17_IRQHandler
.word I2C1_IRQHandler
.word I2C2_IRQHandler
.word SPI1_IRQHandler
.word SPI2_IRQHandler
.word USART1_IRQHandler
.word USART2_IRQHandler
.word 0
.word CEC_IRQHandler
.word 0
.word BootRAM /* @0x108. This is for boot in RAM mode for
STM32F0xx devices. */
/*******************************************************************************
*
* Provide weak aliases for each Exception handler to the Default_Handler.
* As they are weak aliases, any function with the same name will override
* this definition.
*
*******************************************************************************/
.weak NMI_Handler
.thumb_set NMI_Handler,Default_Handler
.weak HardFault_Handler
.thumb_set HardFault_Handler,Default_Handler
.weak SVC_Handler
.thumb_set SVC_Handler,Default_Handler
.weak PendSV_Handler
.thumb_set PendSV_Handler,Default_Handler
.weak SysTick_Handler
.thumb_set SysTick_Handler,Default_Handler
.weak WWDG_IRQHandler
.thumb_set WWDG_IRQHandler,Default_Handler
.weak PVD_IRQHandler
.thumb_set PVD_IRQHandler,Default_Handler
.weak RTC_IRQHandler
.thumb_set RTC_IRQHandler,Default_Handler
.weak FLASH_IRQHandler
.thumb_set FLASH_IRQHandler,Default_Handler
.weak RCC_IRQHandler
.thumb_set RCC_IRQHandler,Default_Handler
.weak EXTI0_1_IRQHandler
.thumb_set EXTI0_1_IRQHandler,Default_Handler
.weak EXTI2_3_IRQHandler
.thumb_set EXTI2_3_IRQHandler,Default_Handler
.weak EXTI4_15_IRQHandler
.thumb_set EXTI4_15_IRQHandler,Default_Handler
.weak TS_IRQHandler
.thumb_set TS_IRQHandler,Default_Handler
.weak DMA1_Channel1_IRQHandler
.thumb_set DMA1_Channel1_IRQHandler,Default_Handler
.weak DMA1_Channel2_3_IRQHandler
.thumb_set DMA1_Channel2_3_IRQHandler,Default_Handler
.weak DMA1_Channel4_5_IRQHandler
.thumb_set DMA1_Channel4_5_IRQHandler,Default_Handler
.weak ADC1_COMP_IRQHandler
.thumb_set ADC1_COMP_IRQHandler,Default_Handler
.weak TIM1_BRK_UP_TRG_COM_IRQHandler
.thumb_set TIM1_BRK_UP_TRG_COM_IRQHandler,Default_Handler
.weak TIM1_CC_IRQHandler
.thumb_set TIM1_CC_IRQHandler,Default_Handler
.weak TIM2_IRQHandler
.thumb_set TIM2_IRQHandler,Default_Handler
.weak TIM3_IRQHandler
.thumb_set TIM3_IRQHandler,Default_Handler
.weak TIM6_DAC_IRQHandler
.thumb_set TIM6_DAC_IRQHandler,Default_Handler
.weak TIM14_IRQHandler
.thumb_set TIM14_IRQHandler,Default_Handler
.weak TIM15_IRQHandler
.thumb_set TIM15_IRQHandler,Default_Handler
.weak TIM16_IRQHandler
.thumb_set TIM16_IRQHandler,Default_Handler
.weak TIM17_IRQHandler
.thumb_set TIM17_IRQHandler,Default_Handler
.weak I2C1_IRQHandler
.thumb_set I2C1_IRQHandler,Default_Handler
.weak I2C2_IRQHandler
.thumb_set I2C2_IRQHandler,Default_Handler
.weak SPI1_IRQHandler
.thumb_set SPI1_IRQHandler,Default_Handler
.weak SPI2_IRQHandler
.thumb_set SPI2_IRQHandler,Default_Handler
.weak USART1_IRQHandler
.thumb_set USART1_IRQHandler,Default_Handler
.weak USART2_IRQHandler
.thumb_set USART2_IRQHandler,Default_Handler
.weak CEC_IRQHandler
.thumb_set CEC_IRQHandler,Default_Handler
/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/

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libraries/mbed/targets/cmsis/TARGET_STM/TARGET_DISCO_F051R8/cmsis.h Normal file
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/* mbed Microcontroller Library
* A generic CMSIS include header
*******************************************************************************
* Copyright (c) 2014, STMicroelectronics
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
* 3. Neither the name of STMicroelectronics nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*******************************************************************************
*/
#ifndef MBED_CMSIS_H
#define MBED_CMSIS_H
#include "stm32f0xx.h"
#include "cmsis_nvic.h"
#endif

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libraries/mbed/targets/cmsis/TARGET_STM/TARGET_DISCO_F051R8/cmsis_nvic.c Normal file
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/* mbed Microcontroller Library
* CMSIS-style functionality to support dynamic vectors
*******************************************************************************
* Copyright (c) 2014, STMicroelectronics
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
* 3. Neither the name of STMicroelectronics nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*******************************************************************************
*/
#include "cmsis_nvic.h"
#define NVIC_RAM_VECTOR_ADDRESS (0x20000000) // Vectors positioned at start of RAM
#define NVIC_FLASH_VECTOR_ADDRESS (0x08000000) // Initial vector position in flash
static unsigned char vtor_remap = 0; // To keep track that the vectors remap is done
void NVIC_SetVector(IRQn_Type IRQn, uint32_t vector) {
int i;
// Space for dynamic vectors, initialised to allocate in R/W
static volatile uint32_t *vectors = (uint32_t *)NVIC_RAM_VECTOR_ADDRESS;
// Copy and switch to dynamic vectors if first time called
if (vtor_remap == 0) {
uint32_t *old_vectors = (uint32_t *)NVIC_FLASH_VECTOR_ADDRESS;
for (i = 0; i < NVIC_NUM_VECTORS; i++) {
vectors[i] = old_vectors[i];
}
SYSCFG->CFGR1 |= 0x03; // Embedded SRAM mapped at 0x00000000
vtor_remap = 1; // The vectors remap is done
}
// Set the vector
vectors[IRQn + 16] = vector;
}
uint32_t NVIC_GetVector(IRQn_Type IRQn) {
uint32_t *vectors = (uint32_t*)NVIC_RAM_VECTOR_ADDRESS;
// Return the vector
return vectors[IRQn + 16];
}

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libraries/mbed/targets/cmsis/TARGET_STM/TARGET_DISCO_F051R8/cmsis_nvic.h Normal file
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/* mbed Microcontroller Library
* CMSIS-style functionality to support dynamic vectors
*******************************************************************************
* Copyright (c) 2014, STMicroelectronics
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
* 3. Neither the name of STMicroelectronics nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*******************************************************************************
*/
#ifndef MBED_CMSIS_NVIC_H
#define MBED_CMSIS_NVIC_H
// STM32F030R8
// CORE: 16 vectors = 64 bytes from 0x00 to 0x3F
// MCU Peripherals: 29 vectors = 116 bytes from 0x40 to 0xB3
// Total: 45 vectors = 180 bytes (0xB4) to be reserved in RAM (see scatter file)
#define NVIC_NUM_VECTORS 45
#define NVIC_USER_IRQ_OFFSET 16
#include "cmsis.h"
#ifdef __cplusplus
extern "C" {
#endif
void NVIC_SetVector(IRQn_Type IRQn, uint32_t vector);
uint32_t NVIC_GetVector(IRQn_Type IRQn);
#ifdef __cplusplus
}
#endif
#endif

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/**
******************************************************************************
* @file stm32f0xx_adc.h
* @author MCD Application Team
* @version V1.3.0
* @date 16-January-2014
* @brief This file contains all the functions prototypes for the ADC firmware
* library
******************************************************************************
* @attention
*
* <h2><center>&copy; COPYRIGHT(c) 2014 STMicroelectronics</center></h2>
*
* Redistribution and use in source and binary forms, with or without modification,
* are permitted provided that the following conditions are met:
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
* 3. Neither the name of STMicroelectronics nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
******************************************************************************
*/
/* Define to prevent recursive inclusion -------------------------------------*/
#ifndef __STM32F0XX_ADC_H
#define __STM32F0XX_ADC_H
#ifdef __cplusplus
extern "C" {
#endif
/* Includes ------------------------------------------------------------------*/
#include "stm32f0xx.h"
/** @addtogroup STM32F0xx_StdPeriph_Driver
* @{
*/
/** @addtogroup ADC
* @{
*/
/* Exported types ------------------------------------------------------------*/
/**
* @brief ADC Init structure definition
*/
typedef struct
{
uint32_t ADC_Resolution; /*!< Selects the resolution of the conversion.
This parameter can be a value of @ref ADC_Resolution */
FunctionalState ADC_ContinuousConvMode; /*!< Specifies whether the conversion is performed in
Continuous or Single mode.
This parameter can be set to ENABLE or DISABLE. */
uint32_t ADC_ExternalTrigConvEdge; /*!< Selects the external trigger Edge and enables the
trigger of a regular group. This parameter can be a value
of @ref ADC_external_trigger_edge_conversion */
uint32_t ADC_ExternalTrigConv; /*!< Defines the external trigger used to start the analog
to digital conversion of regular channels. This parameter
can be a value of @ref ADC_external_trigger_sources_for_channels_conversion */
uint32_t ADC_DataAlign; /*!< Specifies whether the ADC data alignment is left or right.
This parameter can be a value of @ref ADC_data_align */
uint32_t ADC_ScanDirection; /*!< Specifies in which direction the channels will be scanned
in the sequence.
This parameter can be a value of @ref ADC_Scan_Direction */
}ADC_InitTypeDef;
/* Exported constants --------------------------------------------------------*/
/** @defgroup ADC_Exported_Constants
* @{
*/
#define IS_ADC_ALL_PERIPH(PERIPH) ((PERIPH) == ADC1)
/** @defgroup ADC_JitterOff
* @{
*/
/* These defines are obsolete and maintained for legacy purpose only. They are replaced by the ADC_ClockMode */
#define ADC_JitterOff_PCLKDiv2 ADC_CFGR2_JITOFFDIV2
#define ADC_JitterOff_PCLKDiv4 ADC_CFGR2_JITOFFDIV4
#define IS_ADC_JITTEROFF(JITTEROFF) (((JITTEROFF) & 0x3FFFFFFF) == (uint32_t)RESET)
/**
* @}
*/
/** @defgroup ADC_ClockMode
* @{
*/
#define ADC_ClockMode_AsynClk ((uint32_t)0x00000000) /*!< ADC Asynchronous clock mode */
#define ADC_ClockMode_SynClkDiv2 ADC_CFGR2_CKMODE_0 /*!< Synchronous clock mode divided by 2 */
#define ADC_ClockMode_SynClkDiv4 ADC_CFGR2_CKMODE_1 /*!< Synchronous clock mode divided by 4 */
#define IS_ADC_CLOCKMODE(CLOCK) (((CLOCK) == ADC_ClockMode_AsynClk) ||\
((CLOCK) == ADC_ClockMode_SynClkDiv2) ||\
((CLOCK) == ADC_ClockMode_SynClkDiv4))
/**
* @}
*/
/** @defgroup ADC_Resolution
* @{
*/
#define ADC_Resolution_12b ((uint32_t)0x00000000)
#define ADC_Resolution_10b ADC_CFGR1_RES_0
#define ADC_Resolution_8b ADC_CFGR1_RES_1
#define ADC_Resolution_6b ADC_CFGR1_RES
#define IS_ADC_RESOLUTION(RESOLUTION) (((RESOLUTION) == ADC_Resolution_12b) || \
((RESOLUTION) == ADC_Resolution_10b) || \
((RESOLUTION) == ADC_Resolution_8b) || \
((RESOLUTION) == ADC_Resolution_6b))
/**
* @}
*/
/** @defgroup ADC_external_trigger_edge_conversion
* @{
*/
#define ADC_ExternalTrigConvEdge_None ((uint32_t)0x00000000)
#define ADC_ExternalTrigConvEdge_Rising ADC_CFGR1_EXTEN_0
#define ADC_ExternalTrigConvEdge_Falling ADC_CFGR1_EXTEN_1
#define ADC_ExternalTrigConvEdge_RisingFalling ADC_CFGR1_EXTEN
#define IS_ADC_EXT_TRIG_EDGE(EDGE) (((EDGE) == ADC_ExternalTrigConvEdge_None) || \
((EDGE) == ADC_ExternalTrigConvEdge_Rising) || \
((EDGE) == ADC_ExternalTrigConvEdge_Falling) || \
((EDGE) == ADC_ExternalTrigConvEdge_RisingFalling))
/**
* @}
*/
/** @defgroup ADC_external_trigger_sources_for_channels_conversion
* @{
*/
/* TIM1 */
#define ADC_ExternalTrigConv_T1_TRGO ((uint32_t)0x00000000)
#define ADC_ExternalTrigConv_T1_CC4 ADC_CFGR1_EXTSEL_0
/* TIM2 */
#define ADC_ExternalTrigConv_T2_TRGO ADC_CFGR1_EXTSEL_1
/* TIM3 */
#define ADC_ExternalTrigConv_T3_TRGO ((uint32_t)(ADC_CFGR1_EXTSEL_0 | ADC_CFGR1_EXTSEL_1))
/* TIM15 */
#define ADC_ExternalTrigConv_T15_TRGO ADC_CFGR1_EXTSEL_2
#define IS_ADC_EXTERNAL_TRIG_CONV(CONV) (((CONV) == ADC_ExternalTrigConv_T1_TRGO) || \
((CONV) == ADC_ExternalTrigConv_T1_CC4) || \
((CONV) == ADC_ExternalTrigConv_T2_TRGO) || \
((CONV) == ADC_ExternalTrigConv_T3_TRGO) || \
((CONV) == ADC_ExternalTrigConv_T15_TRGO))
/**
* @}
*/
/** @defgroup ADC_data_align
* @{
*/
#define ADC_DataAlign_Right ((uint32_t)0x00000000)
#define ADC_DataAlign_Left ADC_CFGR1_ALIGN
#define IS_ADC_DATA_ALIGN(ALIGN) (((ALIGN) == ADC_DataAlign_Right) || \
((ALIGN) == ADC_DataAlign_Left))
/**
* @}
*/
/** @defgroup ADC_Scan_Direction
* @{
*/
#define ADC_ScanDirection_Upward ((uint32_t)0x00000000)
#define ADC_ScanDirection_Backward ADC_CFGR1_SCANDIR
#define IS_ADC_SCAN_DIRECTION(DIRECTION) (((DIRECTION) == ADC_ScanDirection_Upward) || \
((DIRECTION) == ADC_ScanDirection_Backward))
/**
* @}
*/
/** @defgroup ADC_DMA_Mode
* @{
*/
#define ADC_DMAMode_OneShot ((uint32_t)0x00000000)
#define ADC_DMAMode_Circular ADC_CFGR1_DMACFG
#define IS_ADC_DMA_MODE(MODE) (((MODE) == ADC_DMAMode_OneShot) || \
((MODE) == ADC_DMAMode_Circular))
/**
* @}
*/
/** @defgroup ADC_analog_watchdog_selection
* @{
*/
#define ADC_AnalogWatchdog_Channel_0 ((uint32_t)0x00000000)
#define ADC_AnalogWatchdog_Channel_1 ((uint32_t)0x04000000)
#define ADC_AnalogWatchdog_Channel_2 ((uint32_t)0x08000000)
#define ADC_AnalogWatchdog_Channel_3 ((uint32_t)0x0C000000)
#define ADC_AnalogWatchdog_Channel_4 ((uint32_t)0x10000000)
#define ADC_AnalogWatchdog_Channel_5 ((uint32_t)0x14000000)
#define ADC_AnalogWatchdog_Channel_6 ((uint32_t)0x18000000)
#define ADC_AnalogWatchdog_Channel_7 ((uint32_t)0x1C000000)
#define ADC_AnalogWatchdog_Channel_8 ((uint32_t)0x20000000)
#define ADC_AnalogWatchdog_Channel_9 ((uint32_t)0x24000000)
#define ADC_AnalogWatchdog_Channel_10 ((uint32_t)0x28000000) /*!< Not available for STM32F031 devices */
#define ADC_AnalogWatchdog_Channel_11 ((uint32_t)0x2C000000) /*!< Not available for STM32F031 devices */
#define ADC_AnalogWatchdog_Channel_12 ((uint32_t)0x30000000) /*!< Not available for STM32F031 devices */
#define ADC_AnalogWatchdog_Channel_13 ((uint32_t)0x34000000) /*!< Not available for STM32F031 devices */
#define ADC_AnalogWatchdog_Channel_14 ((uint32_t)0x38000000) /*!< Not available for STM32F031 devices */
#define ADC_AnalogWatchdog_Channel_15 ((uint32_t)0x3C000000) /*!< Not available for STM32F031 devices */
#define ADC_AnalogWatchdog_Channel_16 ((uint32_t)0x40000000)
#define ADC_AnalogWatchdog_Channel_17 ((uint32_t)0x44000000)
#define ADC_AnalogWatchdog_Channel_18 ((uint32_t)0x48000000)
#define IS_ADC_ANALOG_WATCHDOG_CHANNEL(CHANNEL) (((CHANNEL) == ADC_AnalogWatchdog_Channel_0) || \
((CHANNEL) == ADC_AnalogWatchdog_Channel_1) || \
((CHANNEL) == ADC_AnalogWatchdog_Channel_2) || \
((CHANNEL) == ADC_AnalogWatchdog_Channel_3) || \
((CHANNEL) == ADC_AnalogWatchdog_Channel_4) || \
((CHANNEL) == ADC_AnalogWatchdog_Channel_5) || \
((CHANNEL) == ADC_AnalogWatchdog_Channel_6) || \
((CHANNEL) == ADC_AnalogWatchdog_Channel_7) || \
((CHANNEL) == ADC_AnalogWatchdog_Channel_8) || \
((CHANNEL) == ADC_AnalogWatchdog_Channel_9) || \
((CHANNEL) == ADC_AnalogWatchdog_Channel_10) || \
((CHANNEL) == ADC_AnalogWatchdog_Channel_11) || \
((CHANNEL) == ADC_AnalogWatchdog_Channel_12) || \
((CHANNEL) == ADC_AnalogWatchdog_Channel_13) || \
((CHANNEL) == ADC_AnalogWatchdog_Channel_14) || \
((CHANNEL) == ADC_AnalogWatchdog_Channel_15) || \
((CHANNEL) == ADC_AnalogWatchdog_Channel_16) || \
((CHANNEL) == ADC_AnalogWatchdog_Channel_17) || \
((CHANNEL) == ADC_AnalogWatchdog_Channel_18))
/**
* @}
*/
/** @defgroup ADC_sampling_times
* @{
*/
#define ADC_SampleTime_1_5Cycles ((uint32_t)0x00000000)
#define ADC_SampleTime_7_5Cycles ((uint32_t)0x00000001)
#define ADC_SampleTime_13_5Cycles ((uint32_t)0x00000002)
#define ADC_SampleTime_28_5Cycles ((uint32_t)0x00000003)
#define ADC_SampleTime_41_5Cycles ((uint32_t)0x00000004)
#define ADC_SampleTime_55_5Cycles ((uint32_t)0x00000005)
#define ADC_SampleTime_71_5Cycles ((uint32_t)0x00000006)
#define ADC_SampleTime_239_5Cycles ((uint32_t)0x00000007)
#define IS_ADC_SAMPLE_TIME(TIME) (((TIME) == ADC_SampleTime_1_5Cycles) || \
((TIME) == ADC_SampleTime_7_5Cycles) || \
((TIME) == ADC_SampleTime_13_5Cycles) || \
((TIME) == ADC_SampleTime_28_5Cycles) || \
((TIME) == ADC_SampleTime_41_5Cycles) || \
((TIME) == ADC_SampleTime_55_5Cycles) || \
((TIME) == ADC_SampleTime_71_5Cycles) || \
((TIME) == ADC_SampleTime_239_5Cycles))
/**
* @}
*/
/** @defgroup ADC_thresholds
* @{
*/
#define IS_ADC_THRESHOLD(THRESHOLD) ((THRESHOLD) <= 0xFFF)
/**
* @}
*/
/** @defgroup ADC_channels
* @{
*/
#define ADC_Channel_0 ADC_CHSELR_CHSEL0
#define ADC_Channel_1 ADC_CHSELR_CHSEL1
#define ADC_Channel_2 ADC_CHSELR_CHSEL2
#define ADC_Channel_3 ADC_CHSELR_CHSEL3
#define ADC_Channel_4 ADC_CHSELR_CHSEL4
#define ADC_Channel_5 ADC_CHSELR_CHSEL5
#define ADC_Channel_6 ADC_CHSELR_CHSEL6
#define ADC_Channel_7 ADC_CHSELR_CHSEL7
#define ADC_Channel_8 ADC_CHSELR_CHSEL8
#define ADC_Channel_9 ADC_CHSELR_CHSEL9
#define ADC_Channel_10 ADC_CHSELR_CHSEL10 /*!< Not available for STM32F031 devices */
#define ADC_Channel_11 ADC_CHSELR_CHSEL11 /*!< Not available for STM32F031 devices */
#define ADC_Channel_12 ADC_CHSELR_CHSEL12 /*!< Not available for STM32F031 devices */
#define ADC_Channel_13 ADC_CHSELR_CHSEL13 /*!< Not available for STM32F031 devices */
#define ADC_Channel_14 ADC_CHSELR_CHSEL14 /*!< Not available for STM32F031 devices */
#define ADC_Channel_15 ADC_CHSELR_CHSEL15 /*!< Not available for STM32F031 devices */
#define ADC_Channel_16 ADC_CHSELR_CHSEL16
#define ADC_Channel_17 ADC_CHSELR_CHSEL17
#define ADC_Channel_18 ADC_CHSELR_CHSEL18 /*!< Not available for STM32F030 devices */
#define ADC_Channel_TempSensor ((uint32_t)ADC_Channel_16)
#define ADC_Channel_Vrefint ((uint32_t)ADC_Channel_17)
#define ADC_Channel_Vbat ((uint32_t)ADC_Channel_18) /*!< Not available for STM32F030 devices */
#define IS_ADC_CHANNEL(CHANNEL) (((CHANNEL) != (uint32_t)RESET) && (((CHANNEL) & 0xFFF80000) == (uint32_t)RESET))
/**
* @}
*/
/** @defgroup ADC_interrupts_definition
* @{
*/
#define ADC_IT_ADRDY ADC_IER_ADRDYIE
#define ADC_IT_EOSMP ADC_IER_EOSMPIE
#define ADC_IT_EOC ADC_IER_EOCIE
#define ADC_IT_EOSEQ ADC_IER_EOSEQIE
#define ADC_IT_OVR ADC_IER_OVRIE
#define ADC_IT_AWD ADC_IER_AWDIE
#define IS_ADC_CONFIG_IT(IT) (((IT) != (uint32_t)RESET) && (((IT) & 0xFFFFFF60) == (uint32_t)RESET))
#define IS_ADC_GET_IT(IT) (((IT) == ADC_IT_ADRDY) || ((IT) == ADC_IT_EOSMP) || \
((IT) == ADC_IT_EOC) || ((IT) == ADC_IT_EOSEQ) || \
((IT) == ADC_IT_OVR) || ((IT) == ADC_IT_AWD))
#define IS_ADC_CLEAR_IT(IT) (((IT) != (uint32_t)RESET) && (((IT) & 0xFFFFFF60) == (uint32_t)RESET))
/**
* @}
*/
/** @defgroup ADC_flags_definition
* @{
*/
#define ADC_FLAG_ADRDY ADC_ISR_ADRDY
#define ADC_FLAG_EOSMP ADC_ISR_EOSMP
#define ADC_FLAG_EOC ADC_ISR_EOC
#define ADC_FLAG_EOSEQ ADC_ISR_EOSEQ
#define ADC_FLAG_OVR ADC_ISR_OVR
#define ADC_FLAG_AWD ADC_ISR_AWD
#define ADC_FLAG_ADEN ((uint32_t)0x01000001)
#define ADC_FLAG_ADDIS ((uint32_t)0x01000002)
#define ADC_FLAG_ADSTART ((uint32_t)0x01000004)
#define ADC_FLAG_ADSTP ((uint32_t)0x01000010)
#define ADC_FLAG_ADCAL ((uint32_t)0x81000000)
#define IS_ADC_CLEAR_FLAG(FLAG) (((FLAG) != (uint32_t)RESET) && (((FLAG) & 0xFFFFFF60) == (uint32_t)RESET))
#define IS_ADC_GET_FLAG(FLAG) (((FLAG) == ADC_FLAG_ADRDY) || ((FLAG) == ADC_FLAG_EOSMP) || \
((FLAG) == ADC_FLAG_EOC) || ((FLAG) == ADC_FLAG_EOSEQ) || \
((FLAG) == ADC_FLAG_AWD) || ((FLAG) == ADC_FLAG_OVR) || \
((FLAG) == ADC_FLAG_ADEN) || ((FLAG) == ADC_FLAG_ADDIS) || \
((FLAG) == ADC_FLAG_ADSTART) || ((FLAG) == ADC_FLAG_ADSTP) || \
((FLAG) == ADC_FLAG_ADCAL))
/**
* @}
*/
/**
* @}
*/
/* Exported macro ------------------------------------------------------------*/
/* Exported functions ------------------------------------------------------- */
/* Function used to set the ADC configuration to the default reset state *****/
void ADC_DeInit(ADC_TypeDef* ADCx);
/* Initialization and Configuration functions *********************************/
void ADC_Init(ADC_TypeDef* ADCx, ADC_InitTypeDef* ADC_InitStruct);
void ADC_StructInit(ADC_InitTypeDef* ADC_InitStruct);
void ADC_ClockModeConfig(ADC_TypeDef* ADCx, uint32_t ADC_ClockMode);
void ADC_Cmd(ADC_TypeDef* ADCx, FunctionalState NewState);
/* This Function is obsolete and maintained for legacy purpose only.
ADC_ClockModeConfig() function should be used instead */
void ADC_JitterCmd(ADC_TypeDef* ADCx, uint32_t ADC_JitterOff, FunctionalState NewState);
/* Power saving functions *****************************************************/
void ADC_AutoPowerOffCmd(ADC_TypeDef* ADCx, FunctionalState NewState);
void ADC_WaitModeCmd(ADC_TypeDef* ADCx, FunctionalState NewState);
/* Analog Watchdog configuration functions ************************************/
void ADC_AnalogWatchdogCmd(ADC_TypeDef* ADCx, FunctionalState NewState);
void ADC_AnalogWatchdogThresholdsConfig(ADC_TypeDef* ADCx, uint16_t HighThreshold,uint16_t LowThreshold);
void ADC_AnalogWatchdogSingleChannelConfig(ADC_TypeDef* ADCx, uint32_t ADC_AnalogWatchdog_Channel);
void ADC_AnalogWatchdogSingleChannelCmd(ADC_TypeDef* ADCx, FunctionalState NewState);
/* Temperature Sensor , Vrefint and Vbat management function ******************/
void ADC_TempSensorCmd(FunctionalState NewState);
void ADC_VrefintCmd(FunctionalState NewState);
void ADC_VbatCmd(FunctionalState NewState); /*!< Not applicable for STM32F030 devices */
/* Channels Configuration functions *******************************************/
void ADC_ChannelConfig(ADC_TypeDef* ADCx, uint32_t ADC_Channel, uint32_t ADC_SampleTime);
void ADC_ContinuousModeCmd(ADC_TypeDef* ADCx, FunctionalState NewState);
void ADC_DiscModeCmd(ADC_TypeDef* ADCx, FunctionalState NewState);
void ADC_OverrunModeCmd(ADC_TypeDef* ADCx, FunctionalState NewState);
uint32_t ADC_GetCalibrationFactor(ADC_TypeDef* ADCx);
void ADC_StopOfConversion(ADC_TypeDef* ADCx);
void ADC_StartOfConversion(ADC_TypeDef* ADCx);
uint16_t ADC_GetConversionValue(ADC_TypeDef* ADCx);
/* Regular Channels DMA Configuration functions *******************************/
void ADC_DMACmd(ADC_TypeDef* ADCx, FunctionalState NewState);
void ADC_DMARequestModeConfig(ADC_TypeDef* ADCx, uint32_t ADC_DMARequestMode);
/* Interrupts and flags management functions **********************************/
void ADC_ITConfig(ADC_TypeDef* ADCx, uint32_t ADC_IT, FunctionalState NewState);
FlagStatus ADC_GetFlagStatus(ADC_TypeDef* ADCx, uint32_t ADC_FLAG);
void ADC_ClearFlag(ADC_TypeDef* ADCx, uint32_t ADC_FLAG);
ITStatus ADC_GetITStatus(ADC_TypeDef* ADCx, uint32_t ADC_IT);
void ADC_ClearITPendingBit(ADC_TypeDef* ADCx, uint32_t ADC_IT);
#ifdef __cplusplus
}
#endif
#endif /*__STM32F0XX_ADC_H */
/**
* @}
*/
/**
* @}
*/
/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/

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/**
******************************************************************************
* @file stm32f0xx_can.h
* @author MCD Application Team
* @version V1.3.0
* @date 16-January-2014
* @brief This file contains all the functions prototypes for the CAN firmware
* library, applicable only for STM32F072 devices.
******************************************************************************
* @attention
*
* <h2><center>&copy; COPYRIGHT(c) 2014 STMicroelectronics</center></h2>
*
* Redistribution and use in source and binary forms, with or without modification,
* are permitted provided that the following conditions are met:
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
* 3. Neither the name of STMicroelectronics nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
******************************************************************************
*/
/* Define to prevent recursive inclusion -------------------------------------*/
#ifndef __STM32F0xx_CAN_H
#define __STM32F0xx_CAN_H
#ifdef __cplusplus
extern "C" {
#endif
/* Includes ------------------------------------------------------------------*/
#include "stm32f0xx.h"
/** @addtogroup STM32F0xx_StdPeriph_Driver
* @{
*/
/** @addtogroup CAN
* @{
*/
/* Exported types ------------------------------------------------------------*/
#define IS_CAN_ALL_PERIPH(PERIPH) (((PERIPH) == CAN))
/**
* @brief CAN init structure definition
*/
typedef struct
{
uint16_t CAN_Prescaler; /*!< Specifies the length of a time quantum.
It ranges from 1 to 1024. */
uint8_t CAN_Mode; /*!< Specifies the CAN operating mode.
This parameter can be a value of @ref CAN_operating_mode */
uint8_t CAN_SJW; /*!< Specifies the maximum number of time quanta
the CAN hardware is allowed to lengthen or
shorten a bit to perform resynchronization.
This parameter can be a value of @ref CAN_synchronisation_jump_width */
uint8_t CAN_BS1; /*!< Specifies the number of time quanta in Bit
Segment 1. This parameter can be a value of
@ref CAN_time_quantum_in_bit_segment_1 */
uint8_t CAN_BS2; /*!< Specifies the number of time quanta in Bit Segment 2.
This parameter can be a value of @ref CAN_time_quantum_in_bit_segment_2 */
FunctionalState CAN_TTCM; /*!< Enable or disable the time triggered communication mode.
This parameter can be set either to ENABLE or DISABLE. */
FunctionalState CAN_ABOM; /*!< Enable or disable the automatic bus-off management.
This parameter can be set either to ENABLE or DISABLE. */
FunctionalState CAN_AWUM; /*!< Enable or disable the automatic wake-up mode.
This parameter can be set either to ENABLE or DISABLE. */
FunctionalState CAN_NART; /*!< Enable or disable the non-automatic retransmission mode.
This parameter can be set either to ENABLE or DISABLE. */
FunctionalState CAN_RFLM; /*!< Enable or disable the Receive FIFO Locked mode.
This parameter can be set either to ENABLE or DISABLE. */
FunctionalState CAN_TXFP; /*!< Enable or disable the transmit FIFO priority.
This parameter can be set either to ENABLE or DISABLE. */
} CAN_InitTypeDef;
/**
* @brief CAN filter init structure definition
*/
typedef struct
{
uint16_t CAN_FilterIdHigh; /*!< Specifies the filter identification number (MSBs for a 32-bit
configuration, first one for a 16-bit configuration).
This parameter can be a value between 0x0000 and 0xFFFF */
uint16_t CAN_FilterIdLow; /*!< Specifies the filter identification number (LSBs for a 32-bit
configuration, second one for a 16-bit configuration).
This parameter can be a value between 0x0000 and 0xFFFF */
uint16_t CAN_FilterMaskIdHigh; /*!< Specifies the filter mask number or identification number,
according to the mode (MSBs for a 32-bit configuration,
first one for a 16-bit configuration).
This parameter can be a value between 0x0000 and 0xFFFF */
uint16_t CAN_FilterMaskIdLow; /*!< Specifies the filter mask number or identification number,
according to the mode (LSBs for a 32-bit configuration,
second one for a 16-bit configuration).
This parameter can be a value between 0x0000 and 0xFFFF */
uint16_t CAN_FilterFIFOAssignment; /*!< Specifies the FIFO (0 or 1) which will be assigned to the filter.
This parameter can be a value of @ref CAN_filter_FIFO */
uint8_t CAN_FilterNumber; /*!< Specifies the filter which will be initialized. It ranges from 0 to 13. */
uint8_t CAN_FilterMode; /*!< Specifies the filter mode to be initialized.
This parameter can be a value of @ref CAN_filter_mode */
uint8_t CAN_FilterScale; /*!< Specifies the filter scale.
This parameter can be a value of @ref CAN_filter_scale */
FunctionalState CAN_FilterActivation; /*!< Enable or disable the filter.
This parameter can be set either to ENABLE or DISABLE. */
} CAN_FilterInitTypeDef;
/**
* @brief CAN Tx message structure definition
*/
typedef struct
{
uint32_t StdId; /*!< Specifies the standard identifier.
This parameter can be a value between 0 to 0x7FF. */
uint32_t ExtId; /*!< Specifies the extended identifier.
This parameter can be a value between 0 to 0x1FFFFFFF. */
uint8_t IDE; /*!< Specifies the type of identifier for the message that
will be transmitted. This parameter can be a value
of @ref CAN_identifier_type */
uint8_t RTR; /*!< Specifies the type of frame for the message that will
be transmitted. This parameter can be a value of
@ref CAN_remote_transmission_request */
uint8_t DLC; /*!< Specifies the length of the frame that will be
transmitted. This parameter can be a value between
0 to 8 */
uint8_t Data[8]; /*!< Contains the data to be transmitted. It ranges from 0
to 0xFF. */
} CanTxMsg;
/**
* @brief CAN Rx message structure definition
*/
typedef struct
{
uint32_t StdId; /*!< Specifies the standard identifier.
This parameter can be a value between 0 to 0x7FF. */
uint32_t ExtId; /*!< Specifies the extended identifier.
This parameter can be a value between 0 to 0x1FFFFFFF. */
uint8_t IDE; /*!< Specifies the type of identifier for the message that
will be received. This parameter can be a value of
@ref CAN_identifier_type */
uint8_t RTR; /*!< Specifies the type of frame for the received message.
This parameter can be a value of
@ref CAN_remote_transmission_request */
uint8_t DLC; /*!< Specifies the length of the frame that will be received.
This parameter can be a value between 0 to 8 */
uint8_t Data[8]; /*!< Contains the data to be received. It ranges from 0 to
0xFF. */
uint8_t FMI; /*!< Specifies the index of the filter the message stored in
the mailbox passes through. This parameter can be a
value between 0 to 0xFF */
} CanRxMsg;
/* Exported constants --------------------------------------------------------*/
/** @defgroup CAN_Exported_Constants
* @{
*/
/** @defgroup CAN_InitStatus
* @{
*/
#define CAN_InitStatus_Failed ((uint8_t)0x00) /*!< CAN initialization failed */
#define CAN_InitStatus_Success ((uint8_t)0x01) /*!< CAN initialization OK */
/* Legacy defines */
#define CANINITFAILED CAN_InitStatus_Failed
#define CANINITOK CAN_InitStatus_Success
/**
* @}
*/
/** @defgroup CAN_operating_mode
* @{
*/
#define CAN_Mode_Normal ((uint8_t)0x00) /*!< normal mode */
#define CAN_Mode_LoopBack ((uint8_t)0x01) /*!< loopback mode */
#define CAN_Mode_Silent ((uint8_t)0x02) /*!< silent mode */
#define CAN_Mode_Silent_LoopBack ((uint8_t)0x03) /*!< loopback combined with silent mode */
#define IS_CAN_MODE(MODE) (((MODE) == CAN_Mode_Normal) || \
((MODE) == CAN_Mode_LoopBack)|| \
((MODE) == CAN_Mode_Silent) || \
((MODE) == CAN_Mode_Silent_LoopBack))
/**
* @}
*/
/**
* @defgroup CAN_operating_mode
* @{
*/
#define CAN_OperatingMode_Initialization ((uint8_t)0x00) /*!< Initialization mode */
#define CAN_OperatingMode_Normal ((uint8_t)0x01) /*!< Normal mode */
#define CAN_OperatingMode_Sleep ((uint8_t)0x02) /*!< sleep mode */
#define IS_CAN_OPERATING_MODE(MODE) (((MODE) == CAN_OperatingMode_Initialization) ||\
((MODE) == CAN_OperatingMode_Normal)|| \
((MODE) == CAN_OperatingMode_Sleep))
/**
* @}
*/
/**
* @defgroup CAN_operating_mode_status
* @{
*/
#define CAN_ModeStatus_Failed ((uint8_t)0x00) /*!< CAN entering the specific mode failed */
#define CAN_ModeStatus_Success ((uint8_t)!CAN_ModeStatus_Failed) /*!< CAN entering the specific mode Succeed */
/**
* @}
*/
/** @defgroup CAN_synchronisation_jump_width
* @{
*/
#define CAN_SJW_1tq ((uint8_t)0x00) /*!< 1 time quantum */
#define CAN_SJW_2tq ((uint8_t)0x01) /*!< 2 time quantum */
#define CAN_SJW_3tq ((uint8_t)0x02) /*!< 3 time quantum */
#define CAN_SJW_4tq ((uint8_t)0x03) /*!< 4 time quantum */
#define IS_CAN_SJW(SJW) (((SJW) == CAN_SJW_1tq) || ((SJW) == CAN_SJW_2tq)|| \
((SJW) == CAN_SJW_3tq) || ((SJW) == CAN_SJW_4tq))
/**
* @}
*/
/** @defgroup CAN_time_quantum_in_bit_segment_1
* @{
*/
#define CAN_BS1_1tq ((uint8_t)0x00) /*!< 1 time quantum */
#define CAN_BS1_2tq ((uint8_t)0x01) /*!< 2 time quantum */
#define CAN_BS1_3tq ((uint8_t)0x02) /*!< 3 time quantum */
#define CAN_BS1_4tq ((uint8_t)0x03) /*!< 4 time quantum */
#define CAN_BS1_5tq ((uint8_t)0x04) /*!< 5 time quantum */
#define CAN_BS1_6tq ((uint8_t)0x05) /*!< 6 time quantum */
#define CAN_BS1_7tq ((uint8_t)0x06) /*!< 7 time quantum */
#define CAN_BS1_8tq ((uint8_t)0x07) /*!< 8 time quantum */
#define CAN_BS1_9tq ((uint8_t)0x08) /*!< 9 time quantum */
#define CAN_BS1_10tq ((uint8_t)0x09) /*!< 10 time quantum */
#define CAN_BS1_11tq ((uint8_t)0x0A) /*!< 11 time quantum */
#define CAN_BS1_12tq ((uint8_t)0x0B) /*!< 12 time quantum */
#define CAN_BS1_13tq ((uint8_t)0x0C) /*!< 13 time quantum */
#define CAN_BS1_14tq ((uint8_t)0x0D) /*!< 14 time quantum */
#define CAN_BS1_15tq ((uint8_t)0x0E) /*!< 15 time quantum */
#define CAN_BS1_16tq ((uint8_t)0x0F) /*!< 16 time quantum */
#define IS_CAN_BS1(BS1) ((BS1) <= CAN_BS1_16tq)
/**
* @}
*/
/** @defgroup CAN_time_quantum_in_bit_segment_2
* @{
*/
#define CAN_BS2_1tq ((uint8_t)0x00) /*!< 1 time quantum */
#define CAN_BS2_2tq ((uint8_t)0x01) /*!< 2 time quantum */
#define CAN_BS2_3tq ((uint8_t)0x02) /*!< 3 time quantum */
#define CAN_BS2_4tq ((uint8_t)0x03) /*!< 4 time quantum */
#define CAN_BS2_5tq ((uint8_t)0x04) /*!< 5 time quantum */
#define CAN_BS2_6tq ((uint8_t)0x05) /*!< 6 time quantum */
#define CAN_BS2_7tq ((uint8_t)0x06) /*!< 7 time quantum */
#define CAN_BS2_8tq ((uint8_t)0x07) /*!< 8 time quantum */
#define IS_CAN_BS2(BS2) ((BS2) <= CAN_BS2_8tq)
/**
* @}
*/
/** @defgroup CAN_clock_prescaler
* @{
*/
#define IS_CAN_PRESCALER(PRESCALER) (((PRESCALER) >= 1) && ((PRESCALER) <= 1024))
/**
* @}
*/
/** @defgroup CAN_filter_number
* @{
*/
#define IS_CAN_FILTER_NUMBER(NUMBER) ((NUMBER) <= 27)
/**
* @}
*/
/** @defgroup CAN_filter_mode
* @{
*/
#define CAN_FilterMode_IdMask ((uint8_t)0x00) /*!< identifier/mask mode */
#define CAN_FilterMode_IdList ((uint8_t)0x01) /*!< identifier list mode */
#define IS_CAN_FILTER_MODE(MODE) (((MODE) == CAN_FilterMode_IdMask) || \
((MODE) == CAN_FilterMode_IdList))
/**
* @}
*/
/** @defgroup CAN_filter_scale
* @{
*/
#define CAN_FilterScale_16bit ((uint8_t)0x00) /*!< Two 16-bit filters */
#define CAN_FilterScale_32bit ((uint8_t)0x01) /*!< One 32-bit filter */
#define IS_CAN_FILTER_SCALE(SCALE) (((SCALE) == CAN_FilterScale_16bit) || \
((SCALE) == CAN_FilterScale_32bit))
/**
* @}
*/
/** @defgroup CAN_filter_FIFO
* @{
*/
#define CAN_Filter_FIFO0 ((uint8_t)0x00) /*!< Filter FIFO 0 assignment for filter x */
#define CAN_Filter_FIFO1 ((uint8_t)0x01) /*!< Filter FIFO 1 assignment for filter x */
#define IS_CAN_FILTER_FIFO(FIFO) (((FIFO) == CAN_FilterFIFO0) || \
((FIFO) == CAN_FilterFIFO1))
/* Legacy defines */
#define CAN_FilterFIFO0 CAN_Filter_FIFO0
#define CAN_FilterFIFO1 CAN_Filter_FIFO1
/**
* @}
*/
/** @defgroup CAN_Start_bank_filter_for_slave_CAN
* @{
*/
#define IS_CAN_BANKNUMBER(BANKNUMBER) (((BANKNUMBER) >= 1) && ((BANKNUMBER) <= 27))
/**
* @}
*/
/** @defgroup CAN_Tx
* @{
*/
#define IS_CAN_TRANSMITMAILBOX(TRANSMITMAILBOX) ((TRANSMITMAILBOX) <= ((uint8_t)0x02))
#define IS_CAN_STDID(STDID) ((STDID) <= ((uint32_t)0x7FF))
#define IS_CAN_EXTID(EXTID) ((EXTID) <= ((uint32_t)0x1FFFFFFF))
#define IS_CAN_DLC(DLC) ((DLC) <= ((uint8_t)0x08))
/**
* @}
*/
/** @defgroup CAN_identifier_type
* @{
*/
#define CAN_Id_Standard ((uint32_t)0x00000000) /*!< Standard Id */
#define CAN_Id_Extended ((uint32_t)0x00000004) /*!< Extended Id */
#define IS_CAN_IDTYPE(IDTYPE) (((IDTYPE) == CAN_Id_Standard) || \
((IDTYPE) == CAN_Id_Extended))
/* Legacy defines */
#define CAN_ID_STD CAN_Id_Standard
#define CAN_ID_EXT CAN_Id_Extended
/**
* @}
*/
/** @defgroup CAN_remote_transmission_request
* @{
*/
#define CAN_RTR_Data ((uint32_t)0x00000000) /*!< Data frame */
#define CAN_RTR_Remote ((uint32_t)0x00000002) /*!< Remote frame */
#define IS_CAN_RTR(RTR) (((RTR) == CAN_RTR_Data) || ((RTR) == CAN_RTR_Remote))
/* Legacy defines */
#define CAN_RTR_DATA CAN_RTR_Data
#define CAN_RTR_REMOTE CAN_RTR_Remote
/**
* @}
*/
/** @defgroup CAN_transmit_constants
* @{
*/
#define CAN_TxStatus_Failed ((uint8_t)0x00)/*!< CAN transmission failed */
#define CAN_TxStatus_Ok ((uint8_t)0x01) /*!< CAN transmission succeeded */
#define CAN_TxStatus_Pending ((uint8_t)0x02) /*!< CAN transmission pending */
#define CAN_TxStatus_NoMailBox ((uint8_t)0x04) /*!< CAN cell did not provide
an empty mailbox */
/* Legacy defines */
#define CANTXFAILED CAN_TxStatus_Failed
#define CANTXOK CAN_TxStatus_Ok
#define CANTXPENDING CAN_TxStatus_Pending
#define CAN_NO_MB CAN_TxStatus_NoMailBox
/**
* @}
*/
/** @defgroup CAN_receive_FIFO_number_constants
* @{
*/
#define CAN_FIFO0 ((uint8_t)0x00) /*!< CAN FIFO 0 used to receive */
#define CAN_FIFO1 ((uint8_t)0x01) /*!< CAN FIFO 1 used to receive */
#define IS_CAN_FIFO(FIFO) (((FIFO) == CAN_FIFO0) || ((FIFO) == CAN_FIFO1))
/**
* @}
*/
/** @defgroup CAN_sleep_constants
* @{
*/
#define CAN_Sleep_Failed ((uint8_t)0x00) /*!< CAN did not enter the sleep mode */
#define CAN_Sleep_Ok ((uint8_t)0x01) /*!< CAN entered the sleep mode */
/* Legacy defines */
#define CANSLEEPFAILED CAN_Sleep_Failed
#define CANSLEEPOK CAN_Sleep_Ok
/**
* @}
*/
/** @defgroup CAN_wake_up_constants
* @{
*/
#define CAN_WakeUp_Failed ((uint8_t)0x00) /*!< CAN did not leave the sleep mode */
#define CAN_WakeUp_Ok ((uint8_t)0x01) /*!< CAN leaved the sleep mode */
/* Legacy defines */
#define CANWAKEUPFAILED CAN_WakeUp_Failed
#define CANWAKEUPOK CAN_WakeUp_Ok
/**
* @}
*/
/**
* @defgroup CAN_Error_Code_constants
* @{
*/
#define CAN_ErrorCode_NoErr ((uint8_t)0x00) /*!< No Error */
#define CAN_ErrorCode_StuffErr ((uint8_t)0x10) /*!< Stuff Error */
#define CAN_ErrorCode_FormErr ((uint8_t)0x20) /*!< Form Error */
#define CAN_ErrorCode_ACKErr ((uint8_t)0x30) /*!< Acknowledgment Error */
#define CAN_ErrorCode_BitRecessiveErr ((uint8_t)0x40) /*!< Bit Recessive Error */
#define CAN_ErrorCode_BitDominantErr ((uint8_t)0x50) /*!< Bit Dominant Error */
#define CAN_ErrorCode_CRCErr ((uint8_t)0x60) /*!< CRC Error */
#define CAN_ErrorCode_SoftwareSetErr ((uint8_t)0x70) /*!< Software Set Error */
/**
* @}
*/
/** @defgroup CAN_flags
* @{
*/
/* If the flag is 0x3XXXXXXX, it means that it can be used with CAN_GetFlagStatus()
and CAN_ClearFlag() functions. */
/* If the flag is 0x1XXXXXXX, it means that it can only be used with
CAN_GetFlagStatus() function. */
/* Transmit Flags */
#define CAN_FLAG_RQCP0 ((uint32_t)0x38000001) /*!< Request MailBox0 Flag */
#define CAN_FLAG_RQCP1 ((uint32_t)0x38000100) /*!< Request MailBox1 Flag */
#define CAN_FLAG_RQCP2 ((uint32_t)0x38010000) /*!< Request MailBox2 Flag */
/* Receive Flags */
#define CAN_FLAG_FMP0 ((uint32_t)0x12000003) /*!< FIFO 0 Message Pending Flag */
#define CAN_FLAG_FF0 ((uint32_t)0x32000008) /*!< FIFO 0 Full Flag */
#define CAN_FLAG_FOV0 ((uint32_t)0x32000010) /*!< FIFO 0 Overrun Flag */
#define CAN_FLAG_FMP1 ((uint32_t)0x14000003) /*!< FIFO 1 Message Pending Flag */
#define CAN_FLAG_FF1 ((uint32_t)0x34000008) /*!< FIFO 1 Full Flag */
#define CAN_FLAG_FOV1 ((uint32_t)0x34000010) /*!< FIFO 1 Overrun Flag */
/* Operating Mode Flags */
#define CAN_FLAG_WKU ((uint32_t)0x31000008) /*!< Wake up Flag */
#define CAN_FLAG_SLAK ((uint32_t)0x31000012) /*!< Sleep acknowledge Flag */
/* @note When SLAK interrupt is disabled (SLKIE=0), no polling on SLAKI is possible.
In this case the SLAK bit can be polled.*/
/* Error Flags */
#define CAN_FLAG_EWG ((uint32_t)0x10F00001) /*!< Error Warning Flag */
#define CAN_FLAG_EPV ((uint32_t)0x10F00002) /*!< Error Passive Flag */
#define CAN_FLAG_BOF ((uint32_t)0x10F00004) /*!< Bus-Off Flag */
#define CAN_FLAG_LEC ((uint32_t)0x30F00070) /*!< Last error code Flag */
#define IS_CAN_GET_FLAG(FLAG) (((FLAG) == CAN_FLAG_LEC) || ((FLAG) == CAN_FLAG_BOF) || \
((FLAG) == CAN_FLAG_EPV) || ((FLAG) == CAN_FLAG_EWG) || \
((FLAG) == CAN_FLAG_WKU) || ((FLAG) == CAN_FLAG_FOV0) || \
((FLAG) == CAN_FLAG_FF0) || ((FLAG) == CAN_FLAG_FMP0) || \
((FLAG) == CAN_FLAG_FOV1) || ((FLAG) == CAN_FLAG_FF1) || \
((FLAG) == CAN_FLAG_FMP1) || ((FLAG) == CAN_FLAG_RQCP2) || \
((FLAG) == CAN_FLAG_RQCP1)|| ((FLAG) == CAN_FLAG_RQCP0) || \
((FLAG) == CAN_FLAG_SLAK ))
#define IS_CAN_CLEAR_FLAG(FLAG)(((FLAG) == CAN_FLAG_LEC) || ((FLAG) == CAN_FLAG_RQCP2) || \
((FLAG) == CAN_FLAG_RQCP1) || ((FLAG) == CAN_FLAG_RQCP0) || \
((FLAG) == CAN_FLAG_FF0) || ((FLAG) == CAN_FLAG_FOV0) ||\
((FLAG) == CAN_FLAG_FF1) || ((FLAG) == CAN_FLAG_FOV1) || \
((FLAG) == CAN_FLAG_WKU) || ((FLAG) == CAN_FLAG_SLAK))
/**
* @}
*/
/** @defgroup CAN_interrupts
* @{
*/
#define CAN_IT_TME ((uint32_t)0x00000001) /*!< Transmit mailbox empty Interrupt*/
/* Receive Interrupts */
#define CAN_IT_FMP0 ((uint32_t)0x00000002) /*!< FIFO 0 message pending Interrupt*/
#define CAN_IT_FF0 ((uint32_t)0x00000004) /*!< FIFO 0 full Interrupt*/
#define CAN_IT_FOV0 ((uint32_t)0x00000008) /*!< FIFO 0 overrun Interrupt*/
#define CAN_IT_FMP1 ((uint32_t)0x00000010) /*!< FIFO 1 message pending Interrupt*/
#define CAN_IT_FF1 ((uint32_t)0x00000020) /*!< FIFO 1 full Interrupt*/
#define CAN_IT_FOV1 ((uint32_t)0x00000040) /*!< FIFO 1 overrun Interrupt*/
/* Operating Mode Interrupts */
#define CAN_IT_WKU ((uint32_t)0x00010000) /*!< Wake-up Interrupt*/
#define CAN_IT_SLK ((uint32_t)0x00020000) /*!< Sleep acknowledge Interrupt*/
/* Error Interrupts */
#define CAN_IT_EWG ((uint32_t)0x00000100) /*!< Error warning Interrupt*/
#define CAN_IT_EPV ((uint32_t)0x00000200) /*!< Error passive Interrupt*/
#define CAN_IT_BOF ((uint32_t)0x00000400) /*!< Bus-off Interrupt*/
#define CAN_IT_LEC ((uint32_t)0x00000800) /*!< Last error code Interrupt*/
#define CAN_IT_ERR ((uint32_t)0x00008000) /*!< Error Interrupt*/
/* Flags named as Interrupts : kept only for FW compatibility */
#define CAN_IT_RQCP0 CAN_IT_TME
#define CAN_IT_RQCP1 CAN_IT_TME
#define CAN_IT_RQCP2 CAN_IT_TME
#define IS_CAN_IT(IT) (((IT) == CAN_IT_TME) || ((IT) == CAN_IT_FMP0) ||\
((IT) == CAN_IT_FF0) || ((IT) == CAN_IT_FOV0) ||\
((IT) == CAN_IT_FMP1) || ((IT) == CAN_IT_FF1) ||\
((IT) == CAN_IT_FOV1) || ((IT) == CAN_IT_EWG) ||\
((IT) == CAN_IT_EPV) || ((IT) == CAN_IT_BOF) ||\
((IT) == CAN_IT_LEC) || ((IT) == CAN_IT_ERR) ||\
((IT) == CAN_IT_WKU) || ((IT) == CAN_IT_SLK))
#define IS_CAN_CLEAR_IT(IT) (((IT) == CAN_IT_TME) || ((IT) == CAN_IT_FF0) ||\
((IT) == CAN_IT_FOV0)|| ((IT) == CAN_IT_FF1) ||\
((IT) == CAN_IT_FOV1)|| ((IT) == CAN_IT_EWG) ||\
((IT) == CAN_IT_EPV) || ((IT) == CAN_IT_BOF) ||\
((IT) == CAN_IT_LEC) || ((IT) == CAN_IT_ERR) ||\
((IT) == CAN_IT_WKU) || ((IT) == CAN_IT_SLK))
/**
* @}
*/
/**
* @}
*/
/* Exported macro ------------------------------------------------------------*/
/* Exported functions --------------------------------------------------------*/
/* Function used to set the CAN configuration to the default reset state *****/
void CAN_DeInit(CAN_TypeDef* CANx);
/* Initialization and Configuration functions *********************************/
uint8_t CAN_Init(CAN_TypeDef* CANx, CAN_InitTypeDef* CAN_InitStruct);
void CAN_FilterInit(CAN_FilterInitTypeDef* CAN_FilterInitStruct);
void CAN_StructInit(CAN_InitTypeDef* CAN_InitStruct);
void CAN_SlaveStartBank(uint8_t CAN_BankNumber);
void CAN_DBGFreeze(CAN_TypeDef* CANx, FunctionalState NewState);
void CAN_TTComModeCmd(CAN_TypeDef* CANx, FunctionalState NewState);
/* CAN Frames Transmission functions ******************************************/
uint8_t CAN_Transmit(CAN_TypeDef* CANx, CanTxMsg* TxMessage);
uint8_t CAN_TransmitStatus(CAN_TypeDef* CANx, uint8_t TransmitMailbox);
void CAN_CancelTransmit(CAN_TypeDef* CANx, uint8_t Mailbox);
/* CAN Frames Reception functions *********************************************/
void CAN_Receive(CAN_TypeDef* CANx, uint8_t FIFONumber, CanRxMsg* RxMessage);
void CAN_FIFORelease(CAN_TypeDef* CANx, uint8_t FIFONumber);
uint8_t CAN_MessagePending(CAN_TypeDef* CANx, uint8_t FIFONumber);
/* Operation modes functions **************************************************/
uint8_t CAN_OperatingModeRequest(CAN_TypeDef* CANx, uint8_t CAN_OperatingMode);
uint8_t CAN_Sleep(CAN_TypeDef* CANx);
uint8_t CAN_WakeUp(CAN_TypeDef* CANx);
/* CAN Bus Error management functions *****************************************/
uint8_t CAN_GetLastErrorCode(CAN_TypeDef* CANx);
uint8_t CAN_GetReceiveErrorCounter(CAN_TypeDef* CANx);
uint8_t CAN_GetLSBTransmitErrorCounter(CAN_TypeDef* CANx);
/* Interrupts and flags management functions **********************************/
void CAN_ITConfig(CAN_TypeDef* CANx, uint32_t CAN_IT, FunctionalState NewState);
FlagStatus CAN_GetFlagStatus(CAN_TypeDef* CANx, uint32_t CAN_FLAG);
void CAN_ClearFlag(CAN_TypeDef* CANx, uint32_t CAN_FLAG);
ITStatus CAN_GetITStatus(CAN_TypeDef* CANx, uint32_t CAN_IT);
void CAN_ClearITPendingBit(CAN_TypeDef* CANx, uint32_t CAN_IT);
#ifdef __cplusplus
}
#endif
#endif /* __STM32F0xx_CAN_H */
/**
* @}
*/
/**
* @}
*/
/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/

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/**
******************************************************************************
* @file stm32f0xx_cec.c
* @author MCD Application Team
* @version V1.3.0
* @date 16-January-2014
* @brief This file provides firmware functions to manage the following
* functionalities of the Consumer Electronics Control (CEC) peripheral
* applicable only on STM32F051, STM32F042 and STM32F072 devices:
* + Initialization and Configuration
* + Data transfers functions
* + Interrupts and flags management
*
* @verbatim
==============================================================================
##### CEC features #####
==============================================================================
[..] This device provides some features:
(#) Supports HDMI-CEC specification 1.4.
(#) Supports two source clocks(HSI/244 or LSE).
(#) Works in stop mode(without APB clock, but with CEC clock 32KHz).
It can genarate an interrupt in the CEC clock domain that the CPU
wakes up from the low power mode.
(#) Configurable Signal Free Time before of transmission start. The
number of nominal data bit periods waited before transmission can be
ruled by Hardware or Software.
(#) Configurable Peripheral Address (multi-addressing configuration).
(#) Supports listen mode.The CEC Messages addressed to different destination
can be received without interfering with CEC bus when Listen mode option is enabled.
(#) Configurable Rx-Tolerance(Standard and Extended tolerance margin).
(#) Error detection with configurable error bit generation.
(#) Arbitration lost error in the case of two CEC devices starting at the same time.
##### How to use this driver #####
==============================================================================
[..] This driver provides functions to configure and program the CEC device,
follow steps below:
(#) The source clock can be configured using:
(++) RCC_CECCLKConfig(RCC_CECCLK_HSI_Div244) for HSI(Default)
(++) RCC_CECCLKConfig(RCC_CECCLK_LSE) for LSE.
(#) Enable CEC peripheral clock using RCC_APBPeriphClockCmd(RCC_APBPeriph_CEC, ENABLE).
(#) Peripherals alternate function.
(++) Connect the pin to the desired peripherals' Alternate Function (AF) using
GPIO_PinAFConfig() function.
(++) Configure the desired pin in alternate function by:
GPIO_InitStruct->GPIO_Mode = GPIO_Mode_AF.
(++) Select the type open-drain and output speed via GPIO_OType
and GPIO_Speed members.
(++) Call GPIO_Init() function.
(#) Configure the Signal Free Time, Rx Tolerance, Stop reception generation
and Bit error generation using the CEC_Init() function.
The function CEC_Init() must be called when the CEC peripheral is disabled.
(#) Configure the CEC own address by calling the fuction CEC_OwnAddressConfig().
(#) Optionally, you can configure the Listen mode using the function CEC_ListenModeCmd().
(#) Enable the NVIC and the corresponding interrupt using the function
CEC_ITConfig() if you need to use interrupt mode.
CEC_ITConfig() must be called before enabling the CEC peripheral.
(#) Enable the CEC using the CEC_Cmd() function.
(#) Charge the first data byte in the TXDR register using CEC_SendDataByte().
(#) Enable the transmission of the Byte of a CEC message using CEC_StartOfMessage()
(#) Transmit single data through the CEC peripheral using CEC_SendDataByte()
and Receive the last transmitted byte using CEC_ReceiveDataByte().
(#) Enable the CEC_EndOfMessage() in order to indicate the last byte of the message.
[..]
(@) If the listen mode is enabled, Stop reception generation and Bit error generation
must be in reset state.
(@) If the CEC message consists of only 1 byte, the function CEC_EndOfMessage()
must be called before CEC_StartOfMessage().
@endverbatim
*
******************************************************************************
* @attention
*
* <h2><center>&copy; COPYRIGHT(c) 2014 STMicroelectronics</center></h2>
*
* Redistribution and use in source and binary forms, with or without modification,
* are permitted provided that the following conditions are met:
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
* 3. Neither the name of STMicroelectronics nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
******************************************************************************
*/
/* Includes ------------------------------------------------------------------*/
#include "stm32f0xx_cec.h"
#include "stm32f0xx_rcc.h"
/** @addtogroup STM32F0xx_StdPeriph_Driver
* @{
*/
/** @defgroup CEC
* @brief CEC driver modules
* @{
*/
/* Private typedef -----------------------------------------------------------*/
/* Private define ------------------------------------------------------------*/
#define BROADCAST_ADDRESS ((uint32_t)0x0000F)
#define CFGR_CLEAR_MASK ((uint32_t)0x7000FE00) /* CFGR register Mask */
/* Private macro -------------------------------------------------------------*/
/* Private variables ---------------------------------------------------------*/
/* Private function prototypes -----------------------------------------------*/
/* Private functions ---------------------------------------------------------*/
/** @defgroup CEC_Private_Functions
* @{
*/
/** @defgroup CEC_Group1 Initialization and Configuration functions
* @brief Initialization and Configuration functions
*
@verbatim
===============================================================================
##### Initialization and Configuration functions #####
===============================================================================
[..] This section provides functions allowing to initialize:
(+) CEC own addresses
(+) CEC Signal Free Time
(+) CEC Rx Tolerance
(+) CEC Stop Reception
(+) CEC Bit Rising Error
(+) CEC Long Bit Period Error
[..] This section provides also a function to configure the CEC peripheral in Listen Mode.
Messages addressed to different destination can be received when Listen mode is
enabled without interfering with CEC bus.
@endverbatim
* @{
*/
/**
* @brief Deinitializes the CEC peripheral registers to their default reset values.
* @param None
* @retval None
*/
void CEC_DeInit(void)
{
RCC_APB1PeriphResetCmd(RCC_APB1Periph_CEC, ENABLE);
RCC_APB1PeriphResetCmd(RCC_APB1Periph_CEC, DISABLE);
}
/**
* @brief Initializes the CEC peripheral according to the specified parameters
* in the CEC_InitStruct.
* @note The CEC parameters must be configured before enabling the CEC peripheral.
* @param CEC_InitStruct: pointer to an CEC_InitTypeDef structure that contains
* the configuration information for the specified CEC peripheral.
* @retval None
*/
void CEC_Init(CEC_InitTypeDef* CEC_InitStruct)
{
uint32_t tmpreg = 0;
/* Check the parameters */
assert_param(IS_CEC_SIGNAL_FREE_TIME(CEC_InitStruct->CEC_SignalFreeTime));
assert_param(IS_CEC_RX_TOLERANCE(CEC_InitStruct->CEC_RxTolerance));
assert_param(IS_CEC_STOP_RECEPTION(CEC_InitStruct->CEC_StopReception));
assert_param(IS_CEC_BIT_RISING_ERROR(CEC_InitStruct->CEC_BitRisingError));
assert_param(IS_CEC_LONG_BIT_PERIOD_ERROR(CEC_InitStruct->CEC_LongBitPeriodError));
assert_param(IS_CEC_BDR_NO_GEN_ERROR(CEC_InitStruct->CEC_BRDNoGen));
assert_param(IS_CEC_SFT_OPTION(CEC_InitStruct->CEC_SFTOption));
/* Get the CEC CFGR value */
tmpreg = CEC->CFGR;
/* Clear CFGR bits */
tmpreg &= CFGR_CLEAR_MASK;
/* Configure the CEC peripheral */
tmpreg |= (CEC_InitStruct->CEC_SignalFreeTime | CEC_InitStruct->CEC_RxTolerance |
CEC_InitStruct->CEC_StopReception | CEC_InitStruct->CEC_BitRisingError |
CEC_InitStruct->CEC_LongBitPeriodError| CEC_InitStruct->CEC_BRDNoGen |
CEC_InitStruct->CEC_SFTOption);
/* Write to CEC CFGR register */
CEC->CFGR = tmpreg;
}
/**
* @brief Fills each CEC_InitStruct member with its default value.
* @param CEC_InitStruct: pointer to a CEC_InitTypeDef structure which will
* be initialized.
* @retval None
*/
void CEC_StructInit(CEC_InitTypeDef* CEC_InitStruct)
{
CEC_InitStruct->CEC_SignalFreeTime = CEC_SignalFreeTime_Standard;
CEC_InitStruct->CEC_RxTolerance = CEC_RxTolerance_Standard;
CEC_InitStruct->CEC_StopReception = CEC_StopReception_Off;
CEC_InitStruct->CEC_BitRisingError = CEC_BitRisingError_Off;
CEC_InitStruct->CEC_LongBitPeriodError = CEC_LongBitPeriodError_Off;
CEC_InitStruct->CEC_BRDNoGen = CEC_BRDNoGen_Off;
CEC_InitStruct->CEC_SFTOption = CEC_SFTOption_Off;
}
/**
* @brief Enables or disables the CEC peripheral.
* @param NewState: new state of the CEC peripheral.
* This parameter can be: ENABLE or DISABLE.
* @retval None
*/
void CEC_Cmd(FunctionalState NewState)
{
assert_param(IS_FUNCTIONAL_STATE(NewState));
if (NewState != DISABLE)
{
/* Enable the CEC peripheral */
CEC->CR |= CEC_CR_CECEN;
}
else
{
/* Disable the CEC peripheral */
CEC->CR &= ~CEC_CR_CECEN;
}
}
/**
* @brief Enables or disables the CEC Listen Mode.
* @param NewState: new state of the Listen Mode.
* This parameter can be: ENABLE or DISABLE.
* @retval None
*/
void CEC_ListenModeCmd(FunctionalState NewState)
{
assert_param(IS_FUNCTIONAL_STATE(NewState));
if (NewState != DISABLE)
{
/* Enable the Listen Mode */
CEC->CFGR |= CEC_CFGR_LSTN;
}
else
{
/* Disable the Listen Mode */
CEC->CFGR &= ~CEC_CFGR_LSTN;
}
}
/**
* @brief Defines the Own Address of the CEC device.
* @param CEC_OwnAddress: The CEC own address.
* @retval None
*/
void CEC_OwnAddressConfig(uint8_t CEC_OwnAddress)
{
uint32_t tmp =0x00;
/* Check the parameters */
assert_param(IS_CEC_ADDRESS(CEC_OwnAddress));
tmp = 1 <<(CEC_OwnAddress + 16);
/* Set the CEC own address */
CEC->CFGR |= tmp;
}
/**
* @brief Clears the Own Address of the CEC device.
* @param CEC_OwnAddress: The CEC own address.
* @retval None
*/
void CEC_OwnAddressClear(void)
{
/* Set the CEC own address */
CEC->CFGR = 0x0;
}
/**
* @}
*/
/** @defgroup CEC_Group2 Data transfers functions
* @brief Data transfers functions
*
@verbatim
===============================================================================
##### Data transfers functions #####
===============================================================================
[..] This section provides functions allowing the CEC data transfers.The read
access of the CEC_RXDR register can be done using the CEC_ReceiveData()function
and returns the Rx buffered value. Whereas a write access to the CEC_TXDR can be
done using CEC_SendData() function.
@endverbatim
* @{
*/
/**
* @brief Transmits single data through the CEC peripheral.
* @param Data: the data to transmit.
* @retval None
*/
void CEC_SendData(uint8_t Data)
{
/* Transmit Data */
CEC->TXDR = Data;
}
/**
* @brief Returns the most recent received data by the CEC peripheral.
* @param None
* @retval The received data.
*/
uint8_t CEC_ReceiveData(void)
{
/* Receive Data */
return (uint8_t)(CEC->RXDR);
}
/**
* @brief Starts a new message.
* @param None
* @retval None
*/
void CEC_StartOfMessage(void)
{
/* Starts of new message */
CEC->CR |= CEC_CR_TXSOM;
}
/**
* @brief Transmits message with an EOM bit.
* @param None
* @retval None
*/
void CEC_EndOfMessage(void)
{
/* The data byte will be transmitted with an EOM bit */
CEC->CR |= CEC_CR_TXEOM;
}
/**
* @}
*/
/** @defgroup CEC_Group3 Interrupts and flags management functions
* @brief Interrupts and flags management functions
*
@verbatim
===============================================================================
##### Interrupts and flags management functions #####
===============================================================================
[..] This section provides functions allowing to configure the CEC Interrupts
sources and check or clear the flags or pending bits status.
[..] The user should identify which mode will be used in his application to manage
the communication: Polling mode or Interrupt mode.
[..] In polling mode, the CEC can be managed by the following flags:
(+) CEC_FLAG_TXACKE : to indicate a missing acknowledge in transmission mode.
(+) CEC_FLAG_TXERR : to indicate an error occurs during transmission mode.
The initiator detects low impedance in the CEC line.
(+) CEC_FLAG_TXUDR : to indicate if an underrun error occurs in transmission mode.
The transmission is enabled while the software has not yet
loaded any value into the TXDR register.
(+) CEC_FLAG_TXEND : to indicate the end of successful transmission.
(+) CEC_FLAG_TXBR : to indicate the next transmission data has to be written to TXDR.
(+) CEC_FLAG_ARBLST : to indicate arbitration lost in the case of two CEC devices
starting at the same time.
(+) CEC_FLAG_RXACKE : to indicate a missing acknowledge in receive mode.
(+) CEC_FLAG_LBPE : to indicate a long bit period error generated during receive mode.
(+) CEC_FLAG_SBPE : to indicate a short bit period error generated during receive mode.
(+) CEC_FLAG_BRE : to indicate a bit rising error generated during receive mode.
(+) CEC_FLAG_RXOVR : to indicate if an overrun error occur while receiving a CEC message.
A byte is not yet received while a new byte is stored in the RXDR register.
(+) CEC_FLAG_RXEND : to indicate the end Of reception
(+) CEC_FLAG_RXBR : to indicate a new byte has been received from the CEC line and
stored into the RXDR buffer.
[..]
(@)In this Mode, it is advised to use the following functions:
FlagStatus CEC_GetFlagStatus(uint16_t CEC_FLAG);
void CEC_ClearFlag(uint16_t CEC_FLAG);
[..] In Interrupt mode, the CEC can be managed by the following interrupt sources:
(+) CEC_IT_TXACKE : to indicate a TX Missing acknowledge
(+) CEC_IT_TXACKE : to indicate a missing acknowledge in transmission mode.
(+) CEC_IT_TXERR : to indicate an error occurs during transmission mode.
The initiator detects low impedance in the CEC line.
(+) CEC_IT_TXUDR : to indicate if an underrun error occurs in transmission mode.
The transmission is enabled while the software has not yet
loaded any value into the TXDR register.
(+) CEC_IT_TXEND : to indicate the end of successful transmission.
(+) CEC_IT_TXBR : to indicate the next transmission data has to be written to TXDR register.
(+) CEC_IT_ARBLST : to indicate arbitration lost in the case of two CEC devices
starting at the same time.
(+) CEC_IT_RXACKE : to indicate a missing acknowledge in receive mode.
(+) CEC_IT_LBPE : to indicate a long bit period error generated during receive mode.
(+) CEC_IT_SBPE : to indicate a short bit period error generated during receive mode.
(+) CEC_IT_BRE : to indicate a bit rising error generated during receive mode.
(+) CEC_IT_RXOVR : to indicate if an overrun error occur while receiving a CEC message.
A byte is not yet received while a new byte is stored in the RXDR register.
(+) CEC_IT_RXEND : to indicate the end Of reception
(+) CEC_IT_RXBR : to indicate a new byte has been received from the CEC line and
stored into the RXDR buffer.
[..]
(@)In this Mode it is advised to use the following functions:
void CEC_ITConfig( uint16_t CEC_IT, FunctionalState NewState);
ITStatus CEC_GetITStatus(uint16_t CEC_IT);
void CEC_ClearITPendingBit(uint16_t CEC_IT);
@endverbatim
* @{
*/
/**
* @brief Enables or disables the selected CEC interrupts.
* @param CEC_IT: specifies the CEC interrupt source to be enabled.
* This parameter can be any combination of the following values:
* @arg CEC_IT_TXACKE: Tx Missing acknowledge Error
* @arg CEC_IT_TXERR: Tx Error.
* @arg CEC_IT_TXUDR: Tx-Buffer Underrun.
* @arg CEC_IT_TXEND: End of Transmission (successful transmission of the last byte).
* @arg CEC_IT_TXBR: Tx-Byte Request.
* @arg CEC_IT_ARBLST: Arbitration Lost
* @arg CEC_IT_RXACKE: Rx-Missing Acknowledge
* @arg CEC_IT_LBPE: Rx Long period Error
* @arg CEC_IT_SBPE: Rx Short period Error
* @arg CEC_IT_BRE: Rx Bit Rising Error
* @arg CEC_IT_RXOVR: Rx Overrun.
* @arg CEC_IT_RXEND: End Of Reception
* @arg CEC_IT_RXBR: Rx-Byte Received
* @param NewState: new state of the selected CEC interrupts.
* This parameter can be: ENABLE or DISABLE.
* @retval None
*/
void CEC_ITConfig(uint16_t CEC_IT, FunctionalState NewState)
{
assert_param(IS_FUNCTIONAL_STATE(NewState));
assert_param(IS_CEC_IT(CEC_IT));
if (NewState != DISABLE)
{
/* Enable the selected CEC interrupt */
CEC->IER |= CEC_IT;
}
else
{
CEC_IT =~CEC_IT;
/* Disable the selected CEC interrupt */
CEC->IER &= CEC_IT;
}
}
/**
* @brief Gets the CEC flag status.
* @param CEC_FLAG: specifies the CEC flag to check.
* This parameter can be one of the following values:
* @arg CEC_FLAG_TXACKE: Tx Missing acknowledge Error
* @arg CEC_FLAG_TXERR: Tx Error.
* @arg CEC_FLAG_TXUDR: Tx-Buffer Underrun.
* @arg CEC_FLAG_TXEND: End of transmission (successful transmission of the last byte).
* @arg CEC_FLAG_TXBR: Tx-Byte Request.
* @arg CEC_FLAG_ARBLST: Arbitration Lost
* @arg CEC_FLAG_RXACKE: Rx-Missing Acknowledge
* @arg CEC_FLAG_LBPE: Rx Long period Error
* @arg CEC_FLAG_SBPE: Rx Short period Error
* @arg CEC_FLAG_BRE: Rx Bit Rissing Error
* @arg CEC_FLAG_RXOVR: Rx Overrun.
* @arg CEC_FLAG_RXEND: End Of Reception.
* @arg CEC_FLAG_RXBR: Rx-Byte Received.
* @retval The new state of CEC_FLAG (SET or RESET)
*/
FlagStatus CEC_GetFlagStatus(uint16_t CEC_FLAG)
{
FlagStatus bitstatus = RESET;
assert_param(IS_CEC_GET_FLAG(CEC_FLAG));
/* Check the status of the specified CEC flag */
if ((CEC->ISR & CEC_FLAG) != (uint16_t)RESET)
{
/* CEC flag is set */
bitstatus = SET;
}
else
{
/* CEC flag is reset */
bitstatus = RESET;
}
/* Return the CEC flag status */
return bitstatus;
}
/**
* @brief Clears the CEC's pending flags.
* @param CEC_FLAG: specifies the flag to clear.
* This parameter can be any combination of the following values:
* @arg CEC_FLAG_TXACKE: Tx Missing acknowledge Error
* @arg CEC_FLAG_TXERR: Tx Error
* @arg CEC_FLAG_TXUDR: Tx-Buffer Underrun
* @arg CEC_FLAG_TXEND: End of transmission (successful transmission of the last byte).
* @arg CEC_FLAG_TXBR: Tx-Byte Request
* @arg CEC_FLAG_ARBLST: Arbitration Lost
* @arg CEC_FLAG_RXACKE: Rx Missing Acknowledge
* @arg CEC_FLAG_LBPE: Rx Long period Error
* @arg CEC_FLAG_SBPE: Rx Short period Error
* @arg CEC_FLAG_BRE: Rx Bit Rising Error
* @arg CEC_FLAG_RXOVR: Rx Overrun
* @arg CEC_FLAG_RXEND: End Of Reception
* @arg CEC_FLAG_RXBR: Rx-Byte Received
* @retval None
*/
void CEC_ClearFlag(uint32_t CEC_FLAG)
{
assert_param(IS_CEC_CLEAR_FLAG(CEC_FLAG));
/* Clear the selected CEC flag */
CEC->ISR = CEC_FLAG;
}
/**
* @brief Checks whether the specified CEC interrupt has occurred or not.
* @param CEC_IT: specifies the CEC interrupt source to check.
* This parameter can be one of the following values:
* @arg CEC_IT_TXACKE: Tx Missing acknowledge Error
* @arg CEC_IT_TXERR: Tx Error.
* @arg CEC_IT_TXUDR: Tx-Buffer Underrun.
* @arg CEC_IT_TXEND: End of transmission (successful transmission of the last byte).
* @arg CEC_IT_TXBR: Tx-Byte Request.
* @arg CEC_IT_ARBLST: Arbitration Lost.
* @arg CEC_IT_RXACKE: Rx-Missing Acknowledge.
* @arg CEC_IT_LBPE: Rx Long period Error.
* @arg CEC_IT_SBPE: Rx Short period Error.
* @arg CEC_IT_BRE: Rx Bit Rising Error.
* @arg CEC_IT_RXOVR: Rx Overrun.
* @arg CEC_IT_RXEND: End Of Reception.
* @arg CEC_IT_RXBR: Rx-Byte Received
* @retval The new state of CEC_IT (SET or RESET).
*/
ITStatus CEC_GetITStatus(uint16_t CEC_IT)
{
ITStatus bitstatus = RESET;
uint32_t enablestatus = 0;
/* Check the parameters */
assert_param(IS_CEC_GET_IT(CEC_IT));
/* Get the CEC IT enable bit status */
enablestatus = (CEC->IER & CEC_IT);
/* Check the status of the specified CEC interrupt */
if (((CEC->ISR & CEC_IT) != (uint32_t)RESET) && enablestatus)
{
/* CEC interrupt is set */
bitstatus = SET;
}
else
{
/* CEC interrupt is reset */
bitstatus = RESET;
}
/* Return the CEC interrupt status */
return bitstatus;
}
/**
* @brief Clears the CEC's interrupt pending bits.
* @param CEC_IT: specifies the CEC interrupt pending bit to clear.
* This parameter can be any combination of the following values:
* @arg CEC_IT_TXACKE: Tx Missing acknowledge Error
* @arg CEC_IT_TXERR: Tx Error
* @arg CEC_IT_TXUDR: Tx-Buffer Underrun
* @arg CEC_IT_TXEND: End of Transmission
* @arg CEC_IT_TXBR: Tx-Byte Request
* @arg CEC_IT_ARBLST: Arbitration Lost
* @arg CEC_IT_RXACKE: Rx-Missing Acknowledge
* @arg CEC_IT_LBPE: Rx Long period Error
* @arg CEC_IT_SBPE: Rx Short period Error
* @arg CEC_IT_BRE: Rx Bit Rising Error
* @arg CEC_IT_RXOVR: Rx Overrun
* @arg CEC_IT_RXEND: End Of Reception
* @arg CEC_IT_RXBR: Rx-Byte Received
* @retval None
*/
void CEC_ClearITPendingBit(uint16_t CEC_IT)
{
assert_param(IS_CEC_IT(CEC_IT));
/* Clear the selected CEC interrupt pending bits */
CEC->ISR = CEC_IT;
}
/**
* @}
*/
/**
* @}
*/
/**
* @}
*/
/**
* @}
*/
/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/

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/**
******************************************************************************
* @file stm32f0xx_cec.h
* @author MCD Application Team
* @version V1.3.0
* @date 16-January-2014
* @brief This file contains all the functions prototypes for the CEC firmware
* library, applicable only for STM32F051, STM32F042 and STM32F072 devices.
******************************************************************************
* @attention
*
* <h2><center>&copy; COPYRIGHT(c) 2014 STMicroelectronics</center></h2>
*
* Redistribution and use in source and binary forms, with or without modification,
* are permitted provided that the following conditions are met:
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
* 3. Neither the name of STMicroelectronics nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
******************************************************************************
*/
/* Define to prevent recursive inclusion -------------------------------------*/
#ifndef __STM32F0XX_CEC_H
#define __STM32F0XX_CEC_H
#ifdef __cplusplus
extern "C" {
#endif
/* Includes ------------------------------------------------------------------*/
#include "stm32f0xx.h"
/** @addtogroup STM32F0xx_StdPeriph_Driver
* @{
*/
/** @addtogroup CEC
* @{
*/
/* Exported types ------------------------------------------------------------*/
/**
* @brief CEC Init structure definition
*/
typedef struct
{
uint32_t CEC_SignalFreeTime; /*!< Specifies the CEC Signal Free Time configuration.
This parameter can be a value of @ref CEC_Signal_Free_Time */
uint32_t CEC_RxTolerance; /*!< Specifies the CEC Reception Tolerance.
This parameter can be a value of @ref CEC_RxTolerance */
uint32_t CEC_StopReception; /*!< Specifies the CEC Stop Reception.
This parameter can be a value of @ref CEC_Stop_Reception */
uint32_t CEC_BitRisingError; /*!< Specifies the CEC Bit Rising Error generation.
This parameter can be a value of @ref CEC_Bit_Rising_Error_Generation */
uint32_t CEC_LongBitPeriodError; /*!< Specifies the CEC Long Bit Error generation.
This parameter can be a value of @ref CEC_Long_Bit_Error_Generation */
uint32_t CEC_BRDNoGen; /*!< Specifies the CEC Broadcast Error generation.
This parameter can be a value of @ref CEC_BDR_No_Gen */
uint32_t CEC_SFTOption; /*!< Specifies the CEC Signal Free Time option.
This parameter can be a value of @ref CEC_SFT_Option */
}CEC_InitTypeDef;
/* Exported constants --------------------------------------------------------*/
/** @defgroup CEC_Exported_Constants
* @{
*/
/** @defgroup CEC_Signal_Free_Time
* @{
*/
#define CEC_SignalFreeTime_Standard ((uint32_t)0x00000000) /*!< CEC Signal Free Time Standard */
#define CEC_SignalFreeTime_1T ((uint32_t)0x00000001) /*!< CEC 1.5 nominal data bit periods */
#define CEC_SignalFreeTime_2T ((uint32_t)0x00000002) /*!< CEC 2.5 nominal data bit periods */
#define CEC_SignalFreeTime_3T ((uint32_t)0x00000003) /*!< CEC 3.5 nominal data bit periods */
#define CEC_SignalFreeTime_4T ((uint32_t)0x00000004) /*!< CEC 4.5 nominal data bit periods */
#define CEC_SignalFreeTime_5T ((uint32_t)0x00000005) /*!< CEC 5.5 nominal data bit periods */
#define CEC_SignalFreeTime_6T ((uint32_t)0x00000006) /*!< CEC 6.5 nominal data bit periods */
#define CEC_SignalFreeTime_7T ((uint32_t)0x00000007) /*!< CEC 7.5 nominal data bit periods */
#define IS_CEC_SIGNAL_FREE_TIME(TIME) (((TIME) == CEC_SignalFreeTime_Standard) || \
((TIME) == CEC_SignalFreeTime_1T)|| \
((TIME) == CEC_SignalFreeTime_2T)|| \
((TIME) == CEC_SignalFreeTime_3T)|| \
((TIME) == CEC_SignalFreeTime_4T)|| \
((TIME) == CEC_SignalFreeTime_5T)|| \
((TIME) == CEC_SignalFreeTime_6T)|| \
((TIME) == CEC_SignalFreeTime_7T))
/**
* @}
*/
/** @defgroup CEC_RxTolerance
* @{
*/
#define CEC_RxTolerance_Standard ((uint32_t)0x00000000) /*!< Standard Tolerance Margin */
#define CEC_RxTolerance_Extended CEC_CFGR_RXTOL /*!< Extended Tolerance Margin */
#define IS_CEC_RX_TOLERANCE(TOLERANCE) (((TOLERANCE) == CEC_RxTolerance_Standard) || \
((TOLERANCE) == CEC_RxTolerance_Extended))
/**
* @}
*/
/** @defgroup CEC_Stop_Reception
* @{
*/
#define CEC_StopReception_Off ((uint32_t)0x00000000) /*!< No RX Stop on bit Rising Error (BRE) */
#define CEC_StopReception_On CEC_CFGR_BRESTP /*!< RX Stop on bit Rising Error (BRE) */
#define IS_CEC_STOP_RECEPTION(RECEPTION) (((RECEPTION) == CEC_StopReception_On) || \
((RECEPTION) == CEC_StopReception_Off))
/**
* @}
*/
/** @defgroup CEC_Bit_Rising_Error_Generation
* @{
*/
#define CEC_BitRisingError_Off ((uint32_t)0x00000000) /*!< Bit Rising Error generation turned Off */
#define CEC_BitRisingError_On CEC_CFGR_BREGEN /*!< Bit Rising Error generation turned On */
#define IS_CEC_BIT_RISING_ERROR(ERROR) (((ERROR) == CEC_BitRisingError_Off) || \
((ERROR) == CEC_BitRisingError_On))
/**
* @}
*/
/** @defgroup CEC_Long_Bit_Error_Generation
* @{
*/
#define CEC_LongBitPeriodError_Off ((uint32_t)0x00000000) /*!< Long Bit Period Error generation turned Off */
#define CEC_LongBitPeriodError_On CEC_CFGR_LREGEN /*!< Long Bit Period Error generation turned On */
#define IS_CEC_LONG_BIT_PERIOD_ERROR(ERROR) (((ERROR) == CEC_LongBitPeriodError_Off) || \
((ERROR) == CEC_LongBitPeriodError_On))
/**
* @}
*/
/** @defgroup CEC_BDR_No_Gen
* @{
*/
#define CEC_BRDNoGen_Off ((uint32_t)0x00000000) /*!< Broadcast Bit Rising Error generation turned Off */
#define CEC_BRDNoGen_On CEC_CFGR_BRDNOGEN /*!< Broadcast Bit Rising Error generation turned On */
#define IS_CEC_BDR_NO_GEN_ERROR(ERROR) (((ERROR) == CEC_BRDNoGen_Off) || \
((ERROR) == CEC_BRDNoGen_On))
/**
* @}
*/
/** @defgroup CEC_SFT_Option
* @{
*/
#define CEC_SFTOption_Off ((uint32_t)0x00000000) /*!< SFT option turned Off */
#define CEC_SFTOption_On CEC_CFGR_SFTOPT /*!< SFT option turned On */
#define IS_CEC_SFT_OPTION(OPTION) (((OPTION) == CEC_SFTOption_Off) || \
((OPTION) == CEC_SFTOption_On))
/**
* @}
*/
/** @defgroup CEC_Own_Address
* @{
*/
#define IS_CEC_ADDRESS(ADDRESS) ((ADDRESS) < 0x10)
/**
* @}
*/
/** @defgroup CEC_Interrupt_Configuration_definition
* @{
*/
#define CEC_IT_TXACKE CEC_IER_TXACKEIE
#define CEC_IT_TXERR CEC_IER_TXERRIE
#define CEC_IT_TXUDR CEC_IER_TXUDRIE
#define CEC_IT_TXEND CEC_IER_TXENDIE
#define CEC_IT_TXBR CEC_IER_TXBRIE
#define CEC_IT_ARBLST CEC_IER_ARBLSTIE
#define CEC_IT_RXACKE CEC_IER_RXACKEIE
#define CEC_IT_LBPE CEC_IER_LBPEIE
#define CEC_IT_SBPE CEC_IER_SBPEIE
#define CEC_IT_BRE CEC_IER_BREIEIE
#define CEC_IT_RXOVR CEC_IER_RXOVRIE
#define CEC_IT_RXEND CEC_IER_RXENDIE
#define CEC_IT_RXBR CEC_IER_RXBRIE
#define IS_CEC_IT(IT) ((((IT) & (uint32_t)0xFFFFE000) == 0x00) && ((IT) != 0x00))
#define IS_CEC_GET_IT(IT) (((IT) == CEC_IT_TXACKE) || \
((IT) == CEC_IT_TXERR)|| \
((IT) == CEC_IT_TXUDR)|| \
((IT) == CEC_IT_TXEND)|| \
((IT) == CEC_IT_TXBR)|| \
((IT) == CEC_IT_ARBLST)|| \
((IT) == CEC_IT_RXACKE)|| \
((IT) == CEC_IT_LBPE)|| \
((IT) == CEC_IT_SBPE)|| \
((IT) == CEC_IT_BRE)|| \
((IT) == CEC_IT_RXOVR)|| \
((IT) == CEC_IT_RXEND)|| \
((IT) == CEC_IT_RXBR))
/**
* @}
*/
/** @defgroup CEC_ISR_register_flags_definition
* @{
*/
#define CEC_FLAG_TXACKE CEC_ISR_TXACKE
#define CEC_FLAG_TXERR CEC_ISR_TXERR
#define CEC_FLAG_TXUDR CEC_ISR_TXUDR
#define CEC_FLAG_TXEND CEC_ISR_TXEND
#define CEC_FLAG_TXBR CEC_ISR_TXBR
#define CEC_FLAG_ARBLST CEC_ISR_ARBLST
#define CEC_FLAG_RXACKE CEC_ISR_RXACKE
#define CEC_FLAG_LBPE CEC_ISR_LBPE
#define CEC_FLAG_SBPE CEC_ISR_SBPE
#define CEC_FLAG_BRE CEC_ISR_BRE
#define CEC_FLAG_RXOVR CEC_ISR_RXOVR
#define CEC_FLAG_RXEND CEC_ISR_RXEND
#define CEC_FLAG_RXBR CEC_ISR_RXBR
#define IS_CEC_CLEAR_FLAG(FLAG) ((((FLAG) & (uint32_t)0xFFFFE000) == 0x00) && ((FLAG) != 0x00))
#define IS_CEC_GET_FLAG(FLAG) (((FLAG) == CEC_FLAG_TXACKE) || \
((FLAG) == CEC_FLAG_TXERR)|| \
((FLAG) == CEC_FLAG_TXUDR)|| \
((FLAG) == CEC_FLAG_TXEND)|| \
((FLAG) == CEC_FLAG_TXBR)|| \
((FLAG) == CEC_FLAG_ARBLST)|| \
((FLAG) == CEC_FLAG_RXACKE)|| \
((FLAG) == CEC_FLAG_LBPE)|| \
((FLAG) == CEC_FLAG_SBPE)|| \
((FLAG) == CEC_FLAG_BRE)|| \
((FLAG) == CEC_FLAG_RXOVR)|| \
((FLAG) == CEC_FLAG_RXEND)|| \
((FLAG) == CEC_FLAG_RXBR))
/**
* @}
*/
/**
* @}
*/
/* Exported macro ------------------------------------------------------------*/
/* Exported functions ------------------------------------------------------- */
/* Function used to set the CEC configuration to the default reset state *****/
void CEC_DeInit(void);
/* CEC_Initialization and Configuration functions *****************************/
void CEC_Init(CEC_InitTypeDef* CEC_InitStruct);
void CEC_StructInit(CEC_InitTypeDef* CEC_InitStruct);
void CEC_Cmd(FunctionalState NewState);
void CEC_ListenModeCmd(FunctionalState NewState);
void CEC_OwnAddressConfig(uint8_t CEC_OwnAddress);
void CEC_OwnAddressClear(void);
/* CEC_Data transfers functions ***********************************************/
void CEC_SendData(uint8_t Data);
uint8_t CEC_ReceiveData(void);
void CEC_StartOfMessage(void);
void CEC_EndOfMessage(void);
/* CEC_Interrupts and flags management functions ******************************/
void CEC_ITConfig(uint16_t CEC_IT, FunctionalState NewState);
FlagStatus CEC_GetFlagStatus(uint16_t CEC_FLAG);
void CEC_ClearFlag(uint32_t CEC_FLAG);
ITStatus CEC_GetITStatus(uint16_t CEC_IT);
void CEC_ClearITPendingBit(uint16_t CEC_IT);
#ifdef __cplusplus
}
#endif
#endif /* __STM32F0XX_CEC_H */
/**
* @}
*/
/**
* @}
*/
/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/

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/**
******************************************************************************
* @file stm32f0xx_comp.c
* @author MCD Application Team
* @version V1.3.0
* @date 16-January-2014
* @brief This file provides firmware functions to manage the following
* functionalities of the comparators (COMP1 and COMP2) peripheral
* applicable only on STM32F051 and STM32F072 devices:
* + Comparators configuration
* + Window mode control
*
* @verbatim
*
===============================================================================
##### How to use this driver #####
===============================================================================
[..]
The device integrates two analog comparators COMP1 and COMP2:
(+) The non inverting input is set to PA1 for COMP1 and to PA3
for COMP2.
(+) The inverting input can be selected among: DAC1_OUT, DAC2_OUT
1/4 VREFINT, 1/2 VERFINT, 3/4 VREFINT, VREFINT,
I/O (PA0 for COMP1 and PA2 for COMP2)
(+) The COMP output is internally is available using COMP_GetOutputLevel()
and can be set on GPIO pins: PA0, PA6, PA11 for COMP1
and PA2, PA7, PA12 for COMP2
(+) The COMP output can be redirected to embedded timers (TIM1, TIM2
and TIM3)
(+) The two comparators COMP1 and COMP2 can be combined in window
mode and only COMP1 non inverting (PA1) can be used as non-
inverting input.
(+) The two comparators COMP1 and COMP2 have interrupt capability
with wake-up from Sleep and Stop modes (through the EXTI controller).
COMP1 and COMP2 outputs are internally connected to EXTI Line 21
and EXTI Line 22 respectively.
##### How to configure the comparator #####
===============================================================================
[..]
This driver provides functions to configure and program the Comparators
of all STM32F0xx devices.
[..] To use the comparator, perform the following steps:
(#) Enable the SYSCFG APB clock to get write access to comparator
register using RCC_APB2PeriphClockCmd(RCC_APB2Periph_SYSCFG, ENABLE);
(#) Configure the comparator input in analog mode using GPIO_Init()
(#) Configure the comparator output in alternate function mode
using GPIO_Init() and use GPIO_PinAFConfig() function to map the
comparator output to the GPIO pin
(#) Configure the comparator using COMP_Init() function:
(++) Select the inverting input
(++) Select the output polarity
(++) Select the output redirection
(++) Select the hysteresis level
(++) Select the power mode
(#) Enable the comparator using COMP_Cmd() function
(#) If required enable the COMP interrupt by configuring and enabling
EXTI line in Interrupt mode and selecting the desired sensitivity
level using EXTI_Init() function. After that enable the comparator
interrupt vector using NVIC_Init() function.
@endverbatim
*
******************************************************************************
* @attention
*
* <h2><center>&copy; COPYRIGHT(c) 2014 STMicroelectronics</center></h2>
*
* Redistribution and use in source and binary forms, with or without modification,
* are permitted provided that the following conditions are met:
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
* 3. Neither the name of STMicroelectronics nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
******************************************************************************
*/
/* Includes ------------------------------------------------------------------*/
#include "stm32f0xx_comp.h"
/** @addtogroup STM32F0xx_StdPeriph_Driver
* @{
*/
/** @defgroup COMP
* @brief COMP driver modules
* @{
*/
/* Private typedef -----------------------------------------------------------*/
/* Private define ------------------------------------------------------------*/
/* CSR register Mask */
#define COMP_CSR_CLEAR_MASK ((uint32_t)0x00003FFE)
/* Private macro -------------------------------------------------------------*/
/* Private variables ---------------------------------------------------------*/
/* Private function prototypes -----------------------------------------------*/
/* Private functions ---------------------------------------------------------*/
/** @defgroup COMP_Private_Functions
* @{
*/
/** @defgroup COMP_Group1 Initialization and Configuration functions
* @brief Initialization and Configuration functions
*
@verbatim
===============================================================================
##### Initialization and Configuration functions #####
===============================================================================
@endverbatim
* @{
*/
/**
* @brief Deinitializes COMP peripheral registers to their default reset values.
* @note Deinitialization can't be performed if the COMP configuration is locked.
* To unlock the configuration, perform a system reset.
* @param None
* @retval None
*/
void COMP_DeInit(void)
{
COMP->CSR = ((uint32_t)0x00000000); /*!< Set COMP_CSR register to reset value */
}
/**
* @brief Initializes the COMP peripheral according to the specified parameters
* in COMP_InitStruct
* @note If the selected comparator is locked, initialization can't be performed.
* To unlock the configuration, perform a system reset.
* @note By default, PA1 is selected as COMP1 non inverting input.
* To use PA4 as COMP1 non inverting input call COMP_SwitchCmd() after COMP_Init()
* @param COMP_Selection: the selected comparator.
* This parameter can be one of the following values:
* @arg COMP_Selection_COMP1: COMP1 selected
* @arg COMP_Selection_COMP2: COMP2 selected
* @param COMP_InitStruct: pointer to an COMP_InitTypeDef structure that contains
* the configuration information for the specified COMP peripheral.
* @retval None
*/
void COMP_Init(uint32_t COMP_Selection, COMP_InitTypeDef* COMP_InitStruct)
{
uint32_t tmpreg = 0;
/* Check the parameters */
assert_param(IS_COMP_ALL_PERIPH(COMP_Selection));
assert_param(IS_COMP_INVERTING_INPUT(COMP_InitStruct->COMP_InvertingInput));
assert_param(IS_COMP_OUTPUT(COMP_InitStruct->COMP_Output));
assert_param(IS_COMP_OUTPUT_POL(COMP_InitStruct->COMP_OutputPol));
assert_param(IS_COMP_HYSTERESIS(COMP_InitStruct->COMP_Hysteresis));
assert_param(IS_COMP_MODE(COMP_InitStruct->COMP_Mode));
/*!< Get the COMP_CSR register value */
tmpreg = COMP->CSR;
/*!< Clear the COMP1SW1, COMPx_IN_SEL, COMPx_OUT_TIM_SEL, COMPx_POL, COMPx_HYST and COMPx_PWR_MODE bits */
tmpreg &= (uint32_t) ~(COMP_CSR_CLEAR_MASK<<COMP_Selection);
/*!< Configure COMP: inverting input, output redirection, hysteresis value and power mode */
/*!< Set COMPxINSEL bits according to COMP_InitStruct->COMP_InvertingInput value */
/*!< Set COMPxOUTSEL bits according to COMP_InitStruct->COMP_Output value */
/*!< Set COMPxPOL bit according to COMP_InitStruct->COMP_OutputPol value */
/*!< Set COMPxHYST bits according to COMP_InitStruct->COMP_Hysteresis value */
/*!< Set COMPxMODE bits according to COMP_InitStruct->COMP_Mode value */
tmpreg |= (uint32_t)((COMP_InitStruct->COMP_InvertingInput | COMP_InitStruct->COMP_Output |
COMP_InitStruct->COMP_OutputPol | COMP_InitStruct->COMP_Hysteresis |
COMP_InitStruct->COMP_Mode)<<COMP_Selection);
/*!< Write to COMP_CSR register */
COMP->CSR = tmpreg;
}
/**
* @brief Fills each COMP_InitStruct member with its default value.
* @param COMP_InitStruct: pointer to an COMP_InitTypeDef structure which will
* be initialized.
* @retval None
*/
void COMP_StructInit(COMP_InitTypeDef* COMP_InitStruct)
{
COMP_InitStruct->COMP_InvertingInput = COMP_InvertingInput_1_4VREFINT;
COMP_InitStruct->COMP_Output = COMP_Output_None;
COMP_InitStruct->COMP_OutputPol = COMP_OutputPol_NonInverted;
COMP_InitStruct->COMP_Hysteresis = COMP_Hysteresis_No;
COMP_InitStruct->COMP_Mode = COMP_Mode_UltraLowPower;
}
/**
* @brief Enable or disable the COMP peripheral.
* @note If the selected comparator is locked, enable/disable can't be performed.
* To unlock the configuration, perform a system reset.
* @param COMP_Selection: the selected comparator.
* This parameter can be one of the following values:
* @arg COMP_Selection_COMP1: COMP1 selected
* @arg COMP_Selection_COMP2: COMP2 selected
* @param NewState: new state of the COMP peripheral.
* This parameter can be: ENABLE or DISABLE.
* @note When enabled, the comparator compares the non inverting input with
* the inverting input and the comparison result is available on comparator output.
* @note When disabled, the comparator doesn't perform comparison and the
* output level is low.
* @retval None
*/
void COMP_Cmd(uint32_t COMP_Selection, FunctionalState NewState)
{
/* Check the parameters */
assert_param(IS_COMP_ALL_PERIPH(COMP_Selection));
assert_param(IS_FUNCTIONAL_STATE(NewState));
if (NewState != DISABLE)
{
/* Enable the selected COMP peripheral */
COMP->CSR |= (uint32_t) (1<<COMP_Selection);
}
else
{
/* Disable the selected COMP peripheral */
COMP->CSR &= (uint32_t)(~((uint32_t)1<<COMP_Selection));
}
}
/**
* @brief Close or Open the SW1 switch.
* @note This switch is solely intended to redirect signals onto high
* impedance input, such as COMP1 non-inverting input (highly resistive switch)
* @param NewState: New state of the analog switch.
* This parameter can be: ENABLE or DISABLE.
* @note When enabled, the SW1 is closed; PA1 is connected to PA4
* @note When disabled, the SW1 switch is open; PA1 is disconnected from PA4
* @retval None
*/
void COMP_SwitchCmd(FunctionalState NewState)
{
/* Check the parameter */
assert_param(IS_FUNCTIONAL_STATE(NewState));
if (NewState != DISABLE)
{
/* Close SW1 switch */
COMP->CSR |= (uint32_t) (COMP_CSR_COMP1SW1);
}
else
{
/* Open SW1 switch */
COMP->CSR &= (uint32_t)(~COMP_CSR_COMP1SW1);
}
}
/**
* @brief Return the output level (high or low) of the selected comparator.
* @note The output level depends on the selected polarity.
* @note If the polarity is not inverted:
* - Comparator output is low when the non-inverting input is at a lower
* voltage than the inverting input
* - Comparator output is high when the non-inverting input is at a higher
* voltage than the inverting input
* @note If the polarity is inverted:
* - Comparator output is high when the non-inverting input is at a lower
* voltage than the inverting input
* - Comparator output is low when the non-inverting input is at a higher
* voltage than the inverting input
* @param COMP_Selection: the selected comparator.
* This parameter can be one of the following values:
* @arg COMP_Selection_COMP1: COMP1 selected
* @arg COMP_Selection_COMP2: COMP2 selected
* @retval Returns the selected comparator output level: low or high.
*
*/
uint32_t COMP_GetOutputLevel(uint32_t COMP_Selection)
{
uint32_t compout = 0x0;
/* Check the parameters */
assert_param(IS_COMP_ALL_PERIPH(COMP_Selection));
/* Check if selected comparator output is high */
if ((COMP->CSR & (COMP_CSR_COMP1OUT<<COMP_Selection)) != 0)
{
compout = COMP_OutputLevel_High;
}
else
{
compout = COMP_OutputLevel_Low;
}
/* Return the comparator output level */
return (uint32_t)(compout);
}
/**
* @}
*/
/** @defgroup COMP_Group2 Window mode control function
* @brief Window mode control function
*
@verbatim
===============================================================================
##### Window mode control function #####
===============================================================================
@endverbatim
* @{
*/
/**
* @brief Enables or disables the window mode.
* @note In window mode, COMP1 and COMP2 non inverting inputs are connected
* together and only COMP1 non inverting input (PA1) can be used.
* @param NewState: new state of the window mode.
* This parameter can be :
* @arg ENABLE: COMP1 and COMP2 non inverting inputs are connected together.
* @arg DISABLE: OMP1 and COMP2 non inverting inputs are disconnected.
* @retval None
*/
void COMP_WindowCmd(FunctionalState NewState)
{
/* Check the parameters */
assert_param(IS_FUNCTIONAL_STATE(NewState));
if (NewState != DISABLE)
{
/* Enable the window mode */
COMP->CSR |= (uint32_t) COMP_CSR_WNDWEN;
}
else
{
/* Disable the window mode */
COMP->CSR &= (uint32_t)(~COMP_CSR_WNDWEN);
}
}
/**
* @}
*/
/** @defgroup COMP_Group3 COMP configuration locking function
* @brief COMP1 and COMP2 configuration locking function
* COMP1 and COMP2 configuration can be locked each separately.
* Unlocking is performed by system reset.
*
@verbatim
===============================================================================
##### Configuration Lock function #####
===============================================================================
@endverbatim
* @{
*/
/**
* @brief Lock the selected comparator (COMP1/COMP2) configuration.
* @note Locking the configuration means that all control bits are read-only.
* To unlock the comparator configuration, perform a system reset.
* @param COMP_Selection: selects the comparator to be locked
* This parameter can be a value of the following values:
* @arg COMP_Selection_COMP1: COMP1 configuration is locked.
* @arg COMP_Selection_COMP2: COMP2 configuration is locked.
* @retval None
*/
void COMP_LockConfig(uint32_t COMP_Selection)
{
/* Check the parameter */
assert_param(IS_COMP_ALL_PERIPH(COMP_Selection));
/* Set the lock bit corresponding to selected comparator */
COMP->CSR |= (uint32_t) (COMP_CSR_COMP1LOCK<<COMP_Selection);
}
/**
* @}
*/
/**
* @}
*/
/**
* @}
*/
/**
* @}
*/
/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/

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/**
******************************************************************************
* @file stm32f0xx_comp.h
* @author MCD Application Team
* @version V1.3.0
* @date 16-January-2014
* @brief This file contains all the functions prototypes for the COMP firmware
* library, applicable only for STM32F051 and STM32F072 devices.
******************************************************************************
* @attention
*
* <h2><center>&copy; COPYRIGHT(c) 2014 STMicroelectronics</center></h2>
*
* Redistribution and use in source and binary forms, with or without modification,
* are permitted provided that the following conditions are met:
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
* 3. Neither the name of STMicroelectronics nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
******************************************************************************
*/
/* Define to prevent recursive inclusion -------------------------------------*/
#ifndef __STM32F0XX_COMP_H
#define __STM32F0XX_COMP_H
#ifdef __cplusplus
extern "C" {
#endif
/* Includes ------------------------------------------------------------------*/
#include "stm32f0xx.h"
/** @addtogroup STM32F0xx_StdPeriph_Driver
* @{
*/
/** @addtogroup COMP
* @{
*/
/* Exported types ------------------------------------------------------------*/
/**
* @brief COMP Init structure definition
*/
typedef struct
{
uint32_t COMP_InvertingInput; /*!< Selects the inverting input of the comparator.
This parameter can be a value of @ref COMP_InvertingInput */
uint32_t COMP_Output; /*!< Selects the output redirection of the comparator.
This parameter can be a value of @ref COMP_Output */
uint32_t COMP_OutputPol; /*!< Selects the output polarity of the comparator.
This parameter can be a value of @ref COMP_OutputPolarity */
uint32_t COMP_Hysteresis; /*!< Selects the hysteresis voltage of the comparator.
This parameter can be a value of @ref COMP_Hysteresis */
uint32_t COMP_Mode; /*!< Selects the operating mode of the comparator
and allows to adjust the speed/consumption.
This parameter can be a value of @ref COMP_Mode */
}COMP_InitTypeDef;
/* Exported constants --------------------------------------------------------*/
/** @defgroup COMP_Exported_Constants
* @{
*/
/** @defgroup COMP_Selection
* @{
*/
#define COMP_Selection_COMP1 ((uint32_t)0x00000000) /*!< COMP1 Selection */
#define COMP_Selection_COMP2 ((uint32_t)0x00000010) /*!< COMP2 Selection */
#define IS_COMP_ALL_PERIPH(PERIPH) (((PERIPH) == COMP_Selection_COMP1) || \
((PERIPH) == COMP_Selection_COMP2))
/**
* @}
*/
/** @defgroup COMP_InvertingInput
* @{
*/
#define COMP_InvertingInput_1_4VREFINT ((uint32_t)0x00000000) /*!< 1/4 VREFINT connected to comparator inverting input */
#define COMP_InvertingInput_1_2VREFINT COMP_CSR_COMP1INSEL_0 /*!< 1/2 VREFINT connected to comparator inverting input */
#define COMP_InvertingInput_3_4VREFINT COMP_CSR_COMP1INSEL_1 /*!< 3/4 VREFINT connected to comparator inverting input */
#define COMP_InvertingInput_VREFINT ((uint32_t)0x00000030) /*!< VREFINT connected to comparator inverting input */
#define COMP_InvertingInput_DAC1 COMP_CSR_COMP1INSEL_2 /*!< DAC1_OUT (PA4) connected to comparator inverting input */
#define COMP_InvertingInput_DAC2 ((uint32_t)0x00000050) /*!< DAC2_OUT (PA5) connected to comparator inverting input, applicable only for STM32F072 devices */
#define COMP_InvertingInput_IO ((uint32_t)0x00000060) /*!< I/O (PA0 for COMP1 and PA2 for COMP2) connected to comparator inverting input */
#define IS_COMP_INVERTING_INPUT(INPUT) (((INPUT) == COMP_InvertingInput_1_4VREFINT) || \
((INPUT) == COMP_InvertingInput_1_2VREFINT) || \
((INPUT) == COMP_InvertingInput_3_4VREFINT) || \
((INPUT) == COMP_InvertingInput_VREFINT) || \
((INPUT) == COMP_InvertingInput_DAC1) || \
((INPUT) == COMP_InvertingInput_DAC2) || \
((INPUT) == COMP_InvertingInput_1_4VREFINT) || \
((INPUT) == COMP_InvertingInput_IO))
/**
* @}
*/
/** @defgroup COMP_Output
* @{
*/
#define COMP_Output_None ((uint32_t)0x00000000) /*!< COMP output isn't connected to other peripherals */
#define COMP_Output_TIM1BKIN COMP_CSR_COMP1OUTSEL_0 /*!< COMP output connected to TIM1 Break Input (BKIN) */
#define COMP_Output_TIM1IC1 COMP_CSR_COMP1OUTSEL_1 /*!< COMP output connected to TIM1 Input Capture 1 */
#define COMP_Output_TIM1OCREFCLR ((uint32_t)0x00000300) /*!< COMP output connected to TIM1 OCREF Clear */
#define COMP_Output_TIM2IC4 COMP_CSR_COMP1OUTSEL_2 /*!< COMP output connected to TIM2 Input Capture 4 */
#define COMP_Output_TIM2OCREFCLR ((uint32_t)0x00000500) /*!< COMP output connected to TIM2 OCREF Clear */
#define COMP_Output_TIM3IC1 ((uint32_t)0x00000600) /*!< COMP output connected to TIM3 Input Capture 1 */
#define COMP_Output_TIM3OCREFCLR COMP_CSR_COMP1OUTSEL /*!< COMP output connected to TIM3 OCREF Clear */
#define IS_COMP_OUTPUT(OUTPUT) (((OUTPUT) == COMP_Output_None) || \
((OUTPUT) == COMP_Output_TIM1BKIN) || \
((OUTPUT) == COMP_Output_TIM1IC1) || \
((OUTPUT) == COMP_Output_TIM1OCREFCLR) || \
((OUTPUT) == COMP_Output_TIM2IC4) || \
((OUTPUT) == COMP_Output_TIM2OCREFCLR) || \
((OUTPUT) == COMP_Output_TIM3IC1) || \
((OUTPUT) == COMP_Output_TIM3OCREFCLR))
/**
* @}
*/
/** @defgroup COMP_OutputPolarity
* @{
*/
#define COMP_OutputPol_NonInverted ((uint32_t)0x00000000) /*!< COMP output on GPIO isn't inverted */
#define COMP_OutputPol_Inverted COMP_CSR_COMP1POL /*!< COMP output on GPIO is inverted */
#define IS_COMP_OUTPUT_POL(POL) (((POL) == COMP_OutputPol_NonInverted) || \
((POL) == COMP_OutputPol_Inverted))
/**
* @}
*/
/** @defgroup COMP_Hysteresis
* @{
*/
/* Please refer to the electrical characteristics in the device datasheet for
the hysteresis level */
#define COMP_Hysteresis_No 0x00000000 /*!< No hysteresis */
#define COMP_Hysteresis_Low COMP_CSR_COMP1HYST_0 /*!< Hysteresis level low */
#define COMP_Hysteresis_Medium COMP_CSR_COMP1HYST_1 /*!< Hysteresis level medium */
#define COMP_Hysteresis_High COMP_CSR_COMP1HYST /*!< Hysteresis level high */
#define IS_COMP_HYSTERESIS(HYSTERESIS) (((HYSTERESIS) == COMP_Hysteresis_No) || \
((HYSTERESIS) == COMP_Hysteresis_Low) || \
((HYSTERESIS) == COMP_Hysteresis_Medium) || \
((HYSTERESIS) == COMP_Hysteresis_High))
/**
* @}
*/
/** @defgroup COMP_Mode
* @{
*/
/* Please refer to the electrical characteristics in the device datasheet for
the power consumption values */
#define COMP_Mode_HighSpeed 0x00000000 /*!< High Speed */
#define COMP_Mode_MediumSpeed COMP_CSR_COMP1MODE_0 /*!< Medium Speed */
#define COMP_Mode_LowPower COMP_CSR_COMP1MODE_1 /*!< Low power mode */
#define COMP_Mode_UltraLowPower COMP_CSR_COMP1MODE /*!< Ultra-low power mode */
#define IS_COMP_MODE(MODE) (((MODE) == COMP_Mode_UltraLowPower) || \
((MODE) == COMP_Mode_LowPower) || \
((MODE) == COMP_Mode_MediumSpeed) || \
((MODE) == COMP_Mode_HighSpeed))
/**
* @}
*/
/** @defgroup COMP_OutputLevel
* @{
*/
/* When output polarity is not inverted, comparator output is high when
the non-inverting input is at a higher voltage than the inverting input */
#define COMP_OutputLevel_High COMP_CSR_COMP1OUT
/* When output polarity is not inverted, comparator output is low when
the non-inverting input is at a lower voltage than the inverting input*/
#define COMP_OutputLevel_Low ((uint32_t)0x00000000)
/**
* @}
*/
/**
* @}
*/
/* Exported macro ------------------------------------------------------------*/
/* Exported functions ------------------------------------------------------- */
/* Function used to set the COMP configuration to the default reset state ****/
void COMP_DeInit(void);
/* Initialization and Configuration functions *********************************/
void COMP_Init(uint32_t COMP_Selection, COMP_InitTypeDef* COMP_InitStruct);
void COMP_StructInit(COMP_InitTypeDef* COMP_InitStruct);
void COMP_Cmd(uint32_t COMP_Selection, FunctionalState NewState);
void COMP_SwitchCmd(FunctionalState NewState);
uint32_t COMP_GetOutputLevel(uint32_t COMP_Selection);
/* Window mode control function ***********************************************/
void COMP_WindowCmd(FunctionalState NewState);
/* COMP configuration locking function ****************************************/
void COMP_LockConfig(uint32_t COMP_Selection);
#ifdef __cplusplus
}
#endif
#endif /*__STM32F0XX_COMP_H */
/**
* @}
*/
/**
* @}
*/
/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/

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/**
******************************************************************************
* @file Project/STM32F0xx_StdPeriph_Templates/stm32f0xx_conf.h
* @author MCD Application Team
* @version V1.3.1
* @date 17-January-2014
* @brief Library configuration file.
******************************************************************************
* @attention
*
* <h2><center>&copy; COPYRIGHT(c) 2014 STMicroelectronics</center></h2>
*
* Redistribution and use in source and binary forms, with or without modification,
* are permitted provided that the following conditions are met:
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
* 3. Neither the name of STMicroelectronics nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
******************************************************************************
*/
/* Define to prevent recursive inclusion -------------------------------------*/
#ifndef __STM32F0XX_CONF_H
#define __STM32F0XX_CONF_H
/* Includes ------------------------------------------------------------------*/
/* Comment the line below to disable peripheral header file inclusion */
#include "stm32f0xx_adc.h"
#include "stm32f0xx_can.h"
#include "stm32f0xx_cec.h"
#include "stm32f0xx_crc.h"
#include "stm32f0xx_crs.h"
#include "stm32f0xx_comp.h"
#include "stm32f0xx_dac.h"
#include "stm32f0xx_dbgmcu.h"
#include "stm32f0xx_dma.h"
#include "stm32f0xx_exti.h"
#include "stm32f0xx_flash.h"
#include "stm32f0xx_gpio.h"
#include "stm32f0xx_syscfg.h"
#include "stm32f0xx_i2c.h"
#include "stm32f0xx_iwdg.h"
#include "stm32f0xx_pwr.h"
#include "stm32f0xx_rcc.h"
#include "stm32f0xx_rtc.h"
#include "stm32f0xx_spi.h"
#include "stm32f0xx_tim.h"
#include "stm32f0xx_usart.h"
#include "stm32f0xx_wwdg.h"
#include "stm32f0xx_misc.h" /* High level functions for NVIC and SysTick (add-on to CMSIS functions) */
/* Exported types ------------------------------------------------------------*/
/* Exported constants --------------------------------------------------------*/
/* Uncomment the line below to expanse the "assert_param" macro in the
Standard Peripheral Library drivers code */
/* #define USE_FULL_ASSERT 1 */
/* Exported macro ------------------------------------------------------------*/
#ifdef USE_FULL_ASSERT
/**
* @brief The assert_param macro is used for function's parameters check.
* @param expr: If expr is false, it calls assert_failed function which reports
* the name of the source file and the source line number of the call
* that failed. If expr is true, it returns no value.
* @retval None
*/
#define assert_param(expr) ((expr) ? (void)0 : assert_failed((uint8_t *)__FILE__, __LINE__))
/* Exported functions ------------------------------------------------------- */
void assert_failed(uint8_t* file, uint32_t line);
#else
#define assert_param(expr) ((void)0)
#endif /* USE_FULL_ASSERT */
#endif /* __STM32F0XX_CONF_H */
/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/

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/**
******************************************************************************
* @file stm32f0xx_crc.c
* @author MCD Application Team
* @version V1.3.0
* @date 16-January-2014
* @brief This file provides firmware functions to manage the following
* functionalities of CRC computation unit peripheral:
* + Configuration of the CRC computation unit
* + CRC computation of one/many 32-bit data
* + CRC Independent register (IDR) access
*
* @verbatim
===============================================================================
##### How to use this driver #####
===============================================================================
[..]
(+) Enable CRC AHB clock using RCC_AHBPeriphClockCmd(RCC_AHBPeriph_CRC, ENABLE)
function
(+) If required, select the reverse operation on input data
using CRC_ReverseInputDataSelect()
(+) If required, enable the reverse operation on output data
using CRC_ReverseOutputDataCmd(Enable)
(+) use CRC_CalcCRC() function to compute the CRC of a 32-bit data
or use CRC_CalcBlockCRC() function to compute the CRC if a 32-bit
data buffer
(@) To compute the CRC of a new data use CRC_ResetDR() to reset
the CRC computation unit before starting the computation
otherwise you can get wrong CRC values.
@endverbatim
*
******************************************************************************
* @attention
*
* <h2><center>&copy; COPYRIGHT(c) 2014 STMicroelectronics</center></h2>
*
* Redistribution and use in source and binary forms, with or without modification,
* are permitted provided that the following conditions are met:
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
* 3. Neither the name of STMicroelectronics nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
******************************************************************************
*/
/* Includes ------------------------------------------------------------------*/
#include "stm32f0xx_crc.h"
/** @addtogroup STM32F0xx_StdPeriph_Driver
* @{
*/
/** @defgroup CRC
* @brief CRC driver modules
* @{
*/
/* Private typedef -----------------------------------------------------------*/
/* Private define ------------------------------------------------------------*/
/* Private macro -------------------------------------------------------------*/
/* Private variables ---------------------------------------------------------*/
/* Private function prototypes -----------------------------------------------*/
/* Private functions ---------------------------------------------------------*/
/** @defgroup CRC_Private_Functions
* @{
*/
/** @defgroup CRC_Group1 Configuration of the CRC computation unit functions
* @brief Configuration of the CRC computation unit functions
*
@verbatim
===============================================================================
##### CRC configuration functions #####
===============================================================================
@endverbatim
* @{
*/
/**
* @brief Deinitializes CRC peripheral registers to their default reset values.
* @param None
* @retval None
*/
void CRC_DeInit(void)
{
/* Set DR register to reset value */
CRC->DR = 0xFFFFFFFF;
/* Set the POL register to the reset value: 0x04C11DB7 */
CRC->POL = 0x04C11DB7;
/* Reset IDR register */
CRC->IDR = 0x00;
/* Set INIT register to reset value */
CRC->INIT = 0xFFFFFFFF;
/* Reset the CRC calculation unit */
CRC->CR = CRC_CR_RESET;
}
/**
* @brief Resets the CRC calculation unit and sets INIT register content in DR register.
* @param None
* @retval None
*/
void CRC_ResetDR(void)
{
/* Reset CRC generator */
CRC->CR |= CRC_CR_RESET;
}
/**
* @brief Selects the polynomial size. This function is only applicable for
* STM32F072 devices.
* @param CRC_PolSize: Specifies the polynomial size.
* This parameter can be:
* @arg CRC_PolSize_7: 7-bit polynomial for CRC calculation
* @arg CRC_PolSize_8: 8-bit polynomial for CRC calculation
* @arg CRC_PolSize_16: 16-bit polynomial for CRC calculation
* @arg CRC_PolSize_32: 32-bit polynomial for CRC calculation
* @retval None
*/
void CRC_PolynomialSizeSelect(uint32_t CRC_PolSize)
{
uint32_t tmpcr = 0;
/* Check the parameter */
assert_param(IS_CRC_POL_SIZE(CRC_PolSize));
/* Get CR register value */
tmpcr = CRC->CR;
/* Reset POL_SIZE bits */
tmpcr &= (uint32_t)~((uint32_t)CRC_CR_POLSIZE);
/* Set the polynomial size */
tmpcr |= (uint32_t)CRC_PolSize;
/* Write to CR register */
CRC->CR = (uint32_t)tmpcr;
}
/**
* @brief Selects the reverse operation to be performed on input data.
* @param CRC_ReverseInputData: Specifies the reverse operation on input data.
* This parameter can be:
* @arg CRC_ReverseInputData_No: No reverse operation is performed
* @arg CRC_ReverseInputData_8bits: reverse operation performed on 8 bits
* @arg CRC_ReverseInputData_16bits: reverse operation performed on 16 bits
* @arg CRC_ReverseInputData_32bits: reverse operation performed on 32 bits
* @retval None
*/
void CRC_ReverseInputDataSelect(uint32_t CRC_ReverseInputData)
{
uint32_t tmpcr = 0;
/* Check the parameter */
assert_param(IS_CRC_REVERSE_INPUT_DATA(CRC_ReverseInputData));
/* Get CR register value */
tmpcr = CRC->CR;
/* Reset REV_IN bits */
tmpcr &= (uint32_t)~((uint32_t)CRC_CR_REV_IN);
/* Set the reverse operation */
tmpcr |= (uint32_t)CRC_ReverseInputData;
/* Write to CR register */
CRC->CR = (uint32_t)tmpcr;
}
/**
* @brief Enables or disable the reverse operation on output data.
* The reverse operation on output data is performed on 32-bit.
* @param NewState: new state of the reverse operation on output data.
* This parameter can be: ENABLE or DISABLE.
* @retval None
*/
void CRC_ReverseOutputDataCmd(FunctionalState NewState)
{
/* Check the parameters */
assert_param(IS_FUNCTIONAL_STATE(NewState));
if (NewState != DISABLE)
{
/* Enable reverse operation on output data */
CRC->CR |= CRC_CR_REV_OUT;
}
else
{
/* Disable reverse operation on output data */
CRC->CR &= (uint32_t)~((uint32_t)CRC_CR_REV_OUT);
}
}
/**
* @brief Initializes the INIT register.
* @note After resetting CRC calculation unit, CRC_InitValue is stored in DR register
* @param CRC_InitValue: Programmable initial CRC value
* @retval None
*/
void CRC_SetInitRegister(uint32_t CRC_InitValue)
{
CRC->INIT = CRC_InitValue;
}
/**
* @brief Initializes the polynomail coefficients. This function is only
* applicable for STM32F072 devices.
* @param CRC_Pol: Polynomial to be used for CRC calculation.
* @retval None
*/
void CRC_SetPolynomial(uint32_t CRC_Pol)
{
CRC->POL = CRC_Pol;
}
/**
* @}
*/
/** @defgroup CRC_Group2 CRC computation of one/many 32-bit data functions
* @brief CRC computation of one/many 32-bit data functions
*
@verbatim
===============================================================================
##### CRC computation functions #####
===============================================================================
@endverbatim
* @{
*/
/**
* @brief Computes the 32-bit CRC of a given data word(32-bit).
* @param CRC_Data: data word(32-bit) to compute its CRC
* @retval 32-bit CRC
*/
uint32_t CRC_CalcCRC(uint32_t CRC_Data)
{
CRC->DR = CRC_Data;
return (CRC->DR);
}
/**
* @brief Computes the 16-bit CRC of a given 16-bit data. This function is only
* applicable for STM32F072 devices.
* @param CRC_Data: data half-word(16-bit) to compute its CRC
* @retval 16-bit CRC
*/
uint32_t CRC_CalcCRC16bits(uint16_t CRC_Data)
{
*(uint16_t*)(CRC_BASE) = (uint16_t) CRC_Data;
return (CRC->DR);
}
/**
* @brief Computes the 8-bit CRC of a given 8-bit data. This function is only
* applicable for STM32F072 devices.
* @param CRC_Data: 8-bit data to compute its CRC
* @retval 8-bit CRC
*/
uint32_t CRC_CalcCRC8bits(uint8_t CRC_Data)
{
*(uint8_t*)(CRC_BASE) = (uint8_t) CRC_Data;
return (CRC->DR);
}
/**
* @brief Computes the 32-bit CRC of a given buffer of data word(32-bit).
* @param pBuffer: pointer to the buffer containing the data to be computed
* @param BufferLength: length of the buffer to be computed
* @retval 32-bit CRC
*/
uint32_t CRC_CalcBlockCRC(uint32_t pBuffer[], uint32_t BufferLength)
{
uint32_t index = 0;
for(index = 0; index < BufferLength; index++)
{
CRC->DR = pBuffer[index];
}
return (CRC->DR);
}
/**
* @brief Returns the current CRC value.
* @param None
* @retval 32-bit CRC
*/
uint32_t CRC_GetCRC(void)
{
return (CRC->DR);
}
/**
* @}
*/
/** @defgroup CRC_Group3 CRC Independent Register (IDR) access functions
* @brief CRC Independent Register (IDR) access (write/read) functions
*
@verbatim
===============================================================================
##### CRC Independent Register (IDR) access functions #####
===============================================================================
@endverbatim
* @{
*/
/**
* @brief Stores an 8-bit data in the Independent Data(ID) register.
* @param CRC_IDValue: 8-bit value to be stored in the ID register
* @retval None
*/
void CRC_SetIDRegister(uint8_t CRC_IDValue)
{
CRC->IDR = CRC_IDValue;
}
/**
* @brief Returns the 8-bit data stored in the Independent Data(ID) register
* @param None
* @retval 8-bit value of the ID register
*/
uint8_t CRC_GetIDRegister(void)
{
return (CRC->IDR);
}
/**
* @}
*/
/**
* @}
*/
/**
* @}
*/
/**
* @}
*/
/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/

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/**
******************************************************************************
* @file stm32f0xx_crc.h
* @author MCD Application Team
* @version V1.3.0
* @date 16-January-2014
* @brief This file contains all the functions prototypes for the CRC firmware
* library.
******************************************************************************
* @attention
*
* <h2><center>&copy; COPYRIGHT(c) 2014 STMicroelectronics</center></h2>
*
* Redistribution and use in source and binary forms, with or without modification,
* are permitted provided that the following conditions are met:
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
* 3. Neither the name of STMicroelectronics nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
******************************************************************************
*/
/* Define to prevent recursive inclusion -------------------------------------*/
#ifndef __STM32F0XX_CRC_H
#define __STM32F0XX_CRC_H
#ifdef __cplusplus
extern "C" {
#endif
/*!< Includes ----------------------------------------------------------------*/
#include "stm32f0xx.h"
/** @addtogroup STM32F0xx_StdPeriph_Driver
* @{
*/
/** @addtogroup CRC
* @{
*/
/* Exported types ------------------------------------------------------------*/
/* Exported constants --------------------------------------------------------*/
/** @defgroup CRC_ReverseInputData
* @{
*/
#define CRC_ReverseInputData_No ((uint32_t)0x00000000) /*!< No reverse operation of Input Data */
#define CRC_ReverseInputData_8bits CRC_CR_REV_IN_0 /*!< Reverse operation of Input Data on 8 bits */
#define CRC_ReverseInputData_16bits CRC_CR_REV_IN_1 /*!< Reverse operation of Input Data on 16 bits */
#define CRC_ReverseInputData_32bits CRC_CR_REV_IN /*!< Reverse operation of Input Data on 32 bits */
#define IS_CRC_REVERSE_INPUT_DATA(DATA) (((DATA) == CRC_ReverseInputData_No) || \
((DATA) == CRC_ReverseInputData_8bits) || \
((DATA) == CRC_ReverseInputData_16bits) || \
((DATA) == CRC_ReverseInputData_32bits))
/**
* @}
*/
/** @defgroup CRC_PolynomialSize
* @brief Only applicable for STM32F042 and STM32F072 devices
* @{
*/
#define CRC_PolSize_7 CRC_CR_POLSIZE /*!< 7-bit polynomial for CRC calculation */
#define CRC_PolSize_8 CRC_CR_POLSIZE_1 /*!< 8-bit polynomial for CRC calculation */
#define CRC_PolSize_16 CRC_CR_POLSIZE_0 /*!< 16-bit polynomial for CRC calculation */
#define CRC_PolSize_32 ((uint32_t)0x00000000)/*!< 32-bit polynomial for CRC calculation */
#define IS_CRC_POL_SIZE(SIZE) (((SIZE) == CRC_PolSize_7) || \
((SIZE) == CRC_PolSize_8) || \
((SIZE) == CRC_PolSize_16) || \
((SIZE) == CRC_PolSize_32))
/**
* @}
*/
/* Exported macro ------------------------------------------------------------*/
/* Exported functions ------------------------------------------------------- */
/* Configuration of the CRC computation unit **********************************/
void CRC_DeInit(void);
void CRC_ResetDR(void);
void CRC_PolynomialSizeSelect(uint32_t CRC_PolSize); /*!< Only applicable for STM32F042 and STM32F072 devices */
void CRC_ReverseInputDataSelect(uint32_t CRC_ReverseInputData);
void CRC_ReverseOutputDataCmd(FunctionalState NewState);
void CRC_SetInitRegister(uint32_t CRC_InitValue);
void CRC_SetPolynomial(uint32_t CRC_Pol); /*!< Only applicable for STM32F042 and STM32F072 devices */
/* CRC computation ************************************************************/
uint32_t CRC_CalcCRC(uint32_t CRC_Data);
uint32_t CRC_CalcCRC16bits(uint16_t CRC_Data); /*!< Only applicable for STM32F042 and STM32F072 devices */
uint32_t CRC_CalcCRC8bits(uint8_t CRC_Data); /*!< Only applicable for STM32F042 and STM32F072 devices */
uint32_t CRC_CalcBlockCRC(uint32_t pBuffer[], uint32_t BufferLength);
uint32_t CRC_GetCRC(void);
/* Independent register (IDR) access (write/read) *****************************/
void CRC_SetIDRegister(uint8_t CRC_IDValue);
uint8_t CRC_GetIDRegister(void);
#ifdef __cplusplus
}
#endif
#endif /* __STM32F0XX_CRC_H */
/**
* @}
*/
/**
* @}
*/
/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/

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/**
******************************************************************************
* @file stm32f0xx_crs.c
* @author MCD Application Team
* @version V1.3.0
* @date 16-January-2014
* @brief This file provides firmware functions to manage the following
* functionalities of CRS peripheral applicable only on STM32F042 and
* STM32F072 devices:
* + Configuration of the CRS peripheral
* + Interrupts and flags management
*
*
* @verbatim
===============================================================================
##### How to use this driver #####
===============================================================================
[..]
(+) Enable CRS AHB clock using RCC_APB1eriphClockCmd(RCC_APB1Periph_CRS, ENABLE)
function
@endverbatim
*
******************************************************************************
* @attention
*
* <h2><center>&copy; COPYRIGHT(c) 2014 STMicroelectronics</center></h2>
*
* Redistribution and use in source and binary forms, with or without modification,
* are permitted provided that the following conditions are met:
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
* 3. Neither the name of STMicroelectronics nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
******************************************************************************
*/
/* Includes ------------------------------------------------------------------*/
#include "stm32f0xx_crs.h"
#include "stm32f0xx_rcc.h"
/** @addtogroup STM32F0xx_StdPeriph_Driver
* @{
*/
/** @defgroup CRS
* @brief CRS driver modules
* @{
*/
/* Private typedef -----------------------------------------------------------*/
/* Private define ------------------------------------------------------------*/
/* CRS Flag Mask */
#define FLAG_MASK ((uint32_t)0x700)
/* Private macro -------------------------------------------------------------*/
/* Private variables ---------------------------------------------------------*/
/* Private function prototypes -----------------------------------------------*/
/* Private functions ---------------------------------------------------------*/
/** @defgroup CRS_Private_Functions
* @{
*/
/** @defgroup CRS_Group1 Configuration of the CRS functions
* @brief Configuration of the CRS functions
*
@verbatim
===============================================================================
##### CRS configuration functions #####
===============================================================================
@endverbatim
* @{
*/
/**
* @brief Deinitializes CRS peripheral registers to their default reset values.
* @param None
* @retval None
*/
void CRS_DeInit(void)
{
RCC_APB1PeriphResetCmd(RCC_APB1Periph_CRS, ENABLE);
RCC_APB1PeriphResetCmd(RCC_APB1Periph_CRS, DISABLE);
}
/**
* @brief Adjusts the Internal High Speed 48 oscillator (HSI 48) calibration value.
* @note The calibration is used to compensate for the variations in voltage
* and temperature that influence the frequency of the internal HSI48 RC.
* @note This function can be called only when the AUTOTRIMEN bit is reset.
* @param CRS_HSI48CalibrationValue:
* @retval None
*/
void CRS_AdjustHSI48CalibrationValue(uint8_t CRS_HSI48CalibrationValue)
{
/* Clear TRIM[5:0] bits */
CRS->CR &= ~CRS_CR_TRIM;
/* Set the TRIM[5:0] bits according to CRS_HSI48CalibrationValue value */
CRS->CR |= (uint32_t)((uint32_t)CRS_HSI48CalibrationValue << 8);
}
/**
* @brief Enables or disables the oscillator clock for frequency error counter.
* @note when the CEN bit is set the CRS_CFGR register becomes write-protected.
* @param NewState: new state of the frequency error counter.
* This parameter can be: ENABLE or DISABLE.
* @retval None
*/
void CRS_FrequencyErrorCounterCmd(FunctionalState NewState)
{
assert_param(IS_FUNCTIONAL_STATE(NewState));
if (NewState != DISABLE)
{
CRS->CR |= CRS_CR_CEN;
}
else
{
CRS->CR &= ~CRS_CR_CEN;
}
}
/**
* @brief Enables or disables the automatic hardware adjustement of TRIM bits.
* @note When the AUTOTRIMEN bit is set the CRS_CFGR register becomes write-protected.
* @param NewState: new state of the automatic trimming.
* This parameter can be: ENABLE or DISABLE.
* @retval None
*/
void CRS_AutomaticCalibrationCmd(FunctionalState NewState)
{
assert_param(IS_FUNCTIONAL_STATE(NewState));
if (NewState != DISABLE)
{
CRS->CR |= CRS_CR_AUTOTRIMEN;
}
else
{
CRS->CR &= ~CRS_CR_AUTOTRIMEN;
}
}
/**
* @brief Generate the software synchronization event
* @param None
* @retval None
*/
void CRS_SoftwareSynchronizationGenerate(void)
{
CRS->CR |= CRS_CR_SWSYNC;
}
/**
* @brief Adjusts the Internal High Speed 48 oscillator (HSI 48) calibration value.
* @note The calibration is used to compensate for the variations in voltage
* and temperature that influence the frequency of the internal HSI48 RC.
* @note This function can be called only when the CEN bit is reset.
* @param CRS_ReloadValue: specifies the HSI calibration trimming value.
* This parameter must be a number between 0 and .
* @retval None
*/
void CRS_FrequencyErrorCounterReload(uint32_t CRS_ReloadValue)
{
/* Clear RELOAD[15:0] bits */
CRS->CFGR &= ~CRS_CFGR_RELOAD;
/* Set the RELOAD[15:0] bits according to CRS_ReloadValue value */
CRS->CFGR |= (uint32_t)CRS_ReloadValue;
}
/**
* @brief
* @note This function can be called only when the CEN bit is reset.
* @param CRS_ErrorLimitValue: specifies the HSI calibration trimming value.
* This parameter must be a number between 0 and .
* @retval None
*/
void CRS_FrequencyErrorLimitConfig(uint8_t CRS_ErrorLimitValue)
{
/* Clear FELIM[7:0] bits */
CRS->CFGR &= ~CRS_CFGR_FELIM;
/* Set the FELIM[7:0] bits according to CRS_ErrorLimitValue value */
CRS->CFGR |= (uint32_t)CRS_ErrorLimitValue;
}
/**
* @brief
* @note This function can be called only when the CEN bit is reset.
* @param CRS_Prescaler: specifies the HSI calibration trimming value.
* This parameter can be one of the following values:
* @arg CRS_SYNC_Div1:
* @arg CRS_SYNC_Div2:
* @arg CRS_SYNC_Div4:
* @arg CRS_SYNC_Div8:
* @arg CRS_SYNC_Div16:
* @arg CRS_SYNC_Div32:
* @arg CRS_SYNC_Div64:
* @arg CRS_SYNC_Div128:
* @retval None
*/
void CRS_SynchronizationPrescalerConfig(uint32_t CRS_Prescaler)
{
/* Check the parameters */
assert_param(IS_CRS_SYNC_DIV(CRS_Prescaler));
/* Clear SYNCDIV[2:0] bits */
CRS->CFGR &= ~CRS_CFGR_SYNCDIV;
/* Set the CRS_CFGR_SYNCDIV[2:0] bits according to CRS_Prescaler value */
CRS->CFGR |= CRS_Prescaler;
}
/**
* @brief
* @note This function can be called only when the CEN bit is reset.
* @param CRS_Source: .
* This parameter can be one of the following values:
* @arg CRS_SYNCSource_GPIO:
* @arg CRS_SYNCSource_LSE:
* @arg CRS_SYNCSource_USB:
* @retval None
*/
void CRS_SynchronizationSourceConfig(uint32_t CRS_Source)
{
/* Check the parameters */
assert_param(IS_CRS_SYNC_SOURCE(CRS_Source));
/* Clear SYNCSRC[1:0] bits */
CRS->CFGR &= ~CRS_CFGR_SYNCSRC;
/* Set the SYNCSRC[1:0] bits according to CRS_Source value */
CRS->CFGR |= CRS_Source;
}
/**
* @brief
* @note This function can be called only when the CEN bit is reset.
* @param CRS_Polarity: .
* This parameter can be one of the following values:
* @arg CRS_SYNCPolarity_Rising:
* @arg CRS_SYNCPolarity_Falling:
* @retval None
*/
void CRS_SynchronizationPolarityConfig(uint32_t CRS_Polarity)
{
/* Check the parameters */
assert_param(IS_CRS_SYNC_POLARITY(CRS_Polarity));
/* Clear SYNCSPOL bit */
CRS->CFGR &= ~CRS_CFGR_SYNCPOL;
/* Set the SYNCSPOL bits according to CRS_Polarity value */
CRS->CFGR |= CRS_Polarity;
}
/**
* @brief Returns the Relaod value.
* @param None
* @retval The reload value
*/
uint32_t CRS_GetReloadValue(void)
{
return ((uint32_t)(CRS->CFGR & CRS_CFGR_RELOAD));
}
/**
* @brief Returns the HSI48 Calibration value.
* @param None
* @retval The reload value
*/
uint32_t CRS_GetHSI48CalibrationValue(void)
{
return (((uint32_t)(CRS->CR & CRS_CR_TRIM)) >> 8);
}
/**
* @brief Returns the frequency error capture.
* @param None
* @retval The frequency error capture value
*/
uint32_t CRS_GetFrequencyErrorValue(void)
{
return ((uint32_t)(CRS->ISR & CRS_ISR_FECAP));
}
/**
* @brief Returns the frequency error direction.
* @param None
* @retval The frequency error direction. The returned value can be one
* of the following values:
* - 0x00: Up counting
* - 0x8000: Down counting
*/
uint32_t CRS_GetFrequencyErrorDirection(void)
{
return ((uint32_t)(CRS->ISR & CRS_ISR_FEDIR));
}
/** @defgroup CRS_Group2 Interrupts and flags management functions
* @brief Interrupts and flags management functions
*
@verbatim
===============================================================================
##### Interrupts and flags management functions #####
===============================================================================
@endverbatim
* @{
*/
/**
* @brief Enables or disables the specified CRS interrupts.
* @param CRS_IT: specifies the RCC interrupt sources to be enabled or disabled.
* This parameter can be any combination of the following values:
* @arg CRS_IT_SYNCOK:
* @arg CRS_IT_SYNCWARN:
* @arg CRS_IT_ERR:
* @arg CRS_IT_ESYNC:
* @param NewState: new state of the specified CRS interrupts.
* This parameter can be: ENABLE or DISABLE.
* @retval None
*/
void CRS_ITConfig(uint32_t CRS_IT, FunctionalState NewState)
{
/* Check the parameters */
assert_param(IS_CRS_IT(CRS_IT));
assert_param(IS_FUNCTIONAL_STATE(NewState));
if (NewState != DISABLE)
{
CRS->CR |= CRS_IT;
}
else
{
CRS->CR &= ~CRS_IT;
}
}
/**
* @brief Checks whether the specified CRS flag is set or not.
* @param CRS_FLAG: specifies the flag to check.
* This parameter can be one of the following values:
* @arg CRS_FLAG_SYNCOK:
* @arg CRS_FLAG_SYNCWARN:
* @arg CRS_FLAG_ERR:
* @arg CRS_FLAG_ESYNC:
* @arg CRS_FLAG_TRIMOVF:
* @arg CRS_FLAG_SYNCERR:
* @arg CRS_FLAG_SYNCMISS:
* @retval The new state of CRS_FLAG (SET or RESET).
*/
FlagStatus CRS_GetFlagStatus(uint32_t CRS_FLAG)
{
/* Check the parameters */
assert_param(IS_CRS_FLAG(CRS_FLAG));
return ((FlagStatus)(CRS->ISR & CRS_FLAG));
}
/**
* @brief Clears the CRS specified FLAG.
* @param CRS_FLAG: specifies the flag to check.
* This parameter can be one of the following values:
* @arg CRS_FLAG_SYNCOK:
* @arg CRS_FLAG_SYNCWARN:
* @arg CRS_FLAG_ERR:
* @arg CRS_FLAG_ESYNC:
* @arg CRS_FLAG_TRIMOVF:
* @arg CRS_FLAG_SYNCERR:
* @arg CRS_FLAG_SYNCMISS:
* @retval None
*/
void CRS_ClearFlag(uint32_t CRS_FLAG)
{
/* Check the parameters */
assert_param(IS_CRS_FLAG(CRS_FLAG));
if ((CRS_FLAG & FLAG_MASK)!= 0)
{
CRS->ICR |= CRS_ICR_ERRC;
}
else
{
CRS->ICR |= CRS_FLAG;
}
}
/**
* @brief Checks whether the specified CRS IT pending bit is set or not.
* @param CRS_IT: specifies the IT pending bit to check.
* This parameter can be one of the following values:
* @arg CRS_IT_SYNCOK:
* @arg CRS_IT_SYNCWARN:
* @arg CRS_IT_ERR:
* @arg CRS_IT_ESYNC:
* @arg CRS_IT_TRIMOVF:
* @arg CRS_IT_SYNCERR:
* @arg CRS_IT_SYNCMISS:
* @retval The new state of CRS_IT (SET or RESET).
*/
ITStatus CRS_GetITStatus(uint32_t CRS_IT)
{
/* Check the parameters */
assert_param(IS_CRS_GET_IT(CRS_IT));
return ((ITStatus)(CRS->ISR & CRS_IT));
}
/**
* @brief Clears the CRS specified IT pending bi.
* @param CRS_FLAG: specifies the IT pending bi to clear.
* This parameter can be one of the following values:
* @arg CRS_IT_SYNCOK:
* @arg CRS_IT_SYNCWARN:
* @arg CRS_IT_ERR:
* @arg CRS_IT_ESYNC:
* @arg CRS_IT_TRIMOVF:
* @arg CRS_IT_SYNCERR:
* @arg CRS_IT_SYNCMISS:
* @retval None
*/
void CRS_ClearITPendingBit(uint32_t CRS_IT)
{
/* Check the parameters */
assert_param(IS_CRS_CLEAR_IT(CRS_IT));
if ((CRS_IT & FLAG_MASK)!= 0)
{
CRS->ICR |= CRS_ICR_ERRC;
}
else
{
CRS->ICR |= CRS_IT;
}
}
/**
* @}
*/
/**
* @}
*/
/**
* @}
*/
/**
* @}
*/
/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/

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/**
******************************************************************************
* @file stm32f0xx_crs.h
* @author MCD Application Team
* @version V1.3.0
* @date 16-January-2014
* @brief This file contains all the functions prototypes for the CRS firmware
* library, applicable only for STM32F042 and STM32F072 devices.
******************************************************************************
* @attention
*
* <h2><center>&copy; COPYRIGHT(c) 2014 STMicroelectronics</center></h2>
*
* Redistribution and use in source and binary forms, with or without modification,
* are permitted provided that the following conditions are met:
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
* 3. Neither the name of STMicroelectronics nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
******************************************************************************
*/
/* Define to prevent recursive inclusion -------------------------------------*/
#ifndef __STM32F0XX_CRS_H
#define __STM32F0XX_CRS_H
#ifdef __cplusplus
extern "C" {
#endif
/*!< Includes ----------------------------------------------------------------*/
#include "stm32f0xx.h"
/** @addtogroup STM32F0xx_StdPeriph_Driver
* @{
*/
/** @addtogroup CRS
* @{
*/
/* Exported types ------------------------------------------------------------*/
/* Exported constants --------------------------------------------------------*/
/** @defgroup CRS_Interrupt_Sources
* @{
*/
#define CRS_IT_SYNCOK CRS_ISR_SYNCOKF /*!< SYNC event OK */
#define CRS_IT_SYNCWARN CRS_ISR_SYNCWARNF /*!< SYNC warning */
#define CRS_IT_ERR CRS_ISR_ERRF /*!< error */
#define CRS_IT_ESYNC CRS_ISR_ESYNCF /*!< Expected SYNC */
#define CRS_IT_TRIMOVF CRS_ISR_TRIMOVF /*!< Trimming overflow or underflow */
#define CRS_IT_SYNCERR CRS_ISR_SYNCERR /*!< SYNC error */
#define CRS_IT_SYNCMISS CRS_ISR_SYNCMISS /*!< SYNC missed*/
#define IS_CRS_IT(IT) (((IT) == CRS_IT_SYNCOK) || ((IT) == CRS_IT_SYNCWARN) || \
((IT) == CRS_IT_ERR) || ((IT) == CRS_IT_ESYNC))
#define IS_CRS_GET_IT(IT) (((IT) == CRS_IT_SYNCOK) || ((IT) == CRS_IT_SYNCWARN) || \
((IT) == CRS_IT_ERR) || ((IT) == CRS_IT_ESYNC) || \
((IT) == CRS_IT_TRIMOVF) || ((IT) == CRS_IT_SYNCERR) || \
((IT) == CRS_IT_SYNCMISS))
#define IS_CRS_CLEAR_IT(IT) ((IT) != 0x00)
/**
* @}
*/
/** @defgroup CRS_Flags
* @{
*/
#define CRS_FLAG_SYNCOK CRS_ISR_SYNCOKF /*!< SYNC event OK */
#define CRS_FLAG_SYNCWARN CRS_ISR_SYNCWARNF /*!< SYNC warning */
#define CRS_FLAG_ERR CRS_ISR_ERRF /*!< error */
#define CRS_FLAG_ESYNC CRS_ISR_ESYNCF /*!< Expected SYNC */
#define CRS_FLAG_TRIMOVF CRS_ISR_TRIMOVF /*!< Trimming overflow or underflow */
#define CRS_FLAG_SYNCERR CRS_ISR_SYNCERR /*!< SYNC error */
#define CRS_FLAG_SYNCMISS CRS_ISR_SYNCMISS /*!< SYNC missed*/
#define IS_CRS_FLAG(FLAG) (((FLAG) == CRS_FLAG_SYNCOK) || ((FLAG) == CRS_FLAG_SYNCWARN) || \
((FLAG) == CRS_FLAG_ERR) || ((FLAG) == CRS_FLAG_ESYNC) || \
((FLAG) == CRS_FLAG_TRIMOVF) || ((FLAG) == CRS_FLAG_SYNCERR) || \
((FLAG) == CRS_FLAG_SYNCMISS))
/**
* @}
*/
/** @defgroup CRS_Synchro_Source
* @{
*/
#define CRS_SYNCSource_GPIO ((uint32_t)0x00) /*!< Synchro Signal soucre GPIO */
#define CRS_SYNCSource_LSE CRS_CFGR_SYNCSRC_0 /*!< Synchro Signal source LSE */
#define CRS_SYNCSource_USB CRS_CFGR_SYNCSRC_1 /*!< Synchro Signal source USB SOF */
#define IS_CRS_SYNC_SOURCE(SOURCE) (((SOURCE) == CRS_SYNCSource_GPIO) || \
((SOURCE) == CRS_SYNCSource_LSE) ||\
((SOURCE) == CRS_SYNCSource_USB))
/**
* @}
*/
/** @defgroup CRS_SynchroDivider
* @{
*/
#define CRS_SYNC_Div1 ((uint32_t)0x00) /*!< Synchro Signal not divided */
#define CRS_SYNC_Div2 CRS_CFGR_SYNCDIV_0 /*!< Synchro Signal divided by 2 */
#define CRS_SYNC_Div4 CRS_CFGR_SYNCDIV_1 /*!< Synchro Signal divided by 4 */
#define CRS_SYNC_Div8 (CRS_CFGR_SYNCDIV_1 | CRS_CFGR_SYNCDIV_0) /*!< Synchro Signal divided by 8 */
#define CRS_SYNC_Div16 CRS_CFGR_SYNCDIV_2 /*!< Synchro Signal divided by 16 */
#define CRS_SYNC_Div32 (CRS_CFGR_SYNCDIV_2 | CRS_CFGR_SYNCDIV_0) /*!< Synchro Signal divided by 32 */
#define CRS_SYNC_Div64 (CRS_CFGR_SYNCDIV_2 | CRS_CFGR_SYNCDIV_1) /*!< Synchro Signal divided by 64 */
#define CRS_SYNC_Div128 CRS_CFGR_SYNCDIV /*!< Synchro Signal divided by 128 */
#define IS_CRS_SYNC_DIV(DIV) (((DIV) == CRS_SYNC_Div1) || ((DIV) == CRS_SYNC_Div2) ||\
((DIV) == CRS_SYNC_Div4) || ((DIV) == CRS_SYNC_Div8) || \
((DIV) == CRS_SYNC_Div16) || ((DIV) == CRS_SYNC_Div32) || \
((DIV) == CRS_SYNC_Div64) || ((DIV) == CRS_SYNC_Div128))
/**
* @}
*/
/** @defgroup CRS_SynchroPolarity
* @{
*/
#define CRS_SYNCPolarity_Rising ((uint32_t)0x00) /*!< Synchro Active on rising edge */
#define CRS_SYNCPolarity_Falling CRS_CFGR_SYNCPOL /*!< Synchro Active on falling edge */
#define IS_CRS_SYNC_POLARITY(POLARITY) (((POLARITY) == CRS_SYNCPolarity_Rising) || \
((POLARITY) == CRS_SYNCPolarity_Falling))
/**
* @}
*/
/* Exported macro ------------------------------------------------------------*/
/* Exported functions ------------------------------------------------------- */
/* Configuration of the CRS **********************************/
void CRS_DeInit(void);
void CRS_AdjustHSI48CalibrationValue(uint8_t CRS_HSI48CalibrationValue);
void CRS_FrequencyErrorCounterCmd(FunctionalState NewState);
void CRS_AutomaticCalibrationCmd(FunctionalState NewState);
void CRS_SoftwareSynchronizationGenerate(void);
void CRS_FrequencyErrorCounterReload(uint32_t CRS_ReloadValue);
void CRS_FrequencyErrorLimitConfig(uint8_t CRS_ErrorLimitValue);
void CRS_SynchronizationPrescalerConfig(uint32_t CRS_Prescaler);
void CRS_SynchronizationSourceConfig(uint32_t CRS_Source);
void CRS_SynchronizationPolarityConfig(uint32_t CRS_Polarity);
uint32_t CRS_GetReloadValue(void);
uint32_t CRS_GetHSI48CalibrationValue(void);
uint32_t CRS_GetFrequencyErrorValue(void);
uint32_t CRS_GetFrequencyErrorDirection(void);
/* Interrupts and flags management functions **********************************/
void CRS_ITConfig(uint32_t CRS_IT, FunctionalState NewState);
FlagStatus CRS_GetFlagStatus(uint32_t CRS_FLAG);
void CRS_ClearFlag(uint32_t CRS_FLAG);
ITStatus CRS_GetITStatus(uint32_t CRS_IT);
void CRS_ClearITPendingBit(uint32_t CRS_IT);
#ifdef __cplusplus
}
#endif
#endif /* __STM32F0XX_CRS_H */
/**
* @}
*/
/**
* @}
*/
/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/

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/**
******************************************************************************
* @file stm32f0xx_dac.c
* @author MCD Application Team
* @version V1.3.0
* @date 16-January-2014
* @brief This file provides firmware functions to manage the following
* functionalities of the Digital-to-Analog Converter (DAC) peripheral
* applicable only on STM32F051 and STM32F072 devices:
* + DAC channel configuration: trigger, output buffer, data format
* + DMA management
* + Interrupts and flags management
*
* @verbatim
*
===============================================================================
##### DAC Peripheral features #####
===============================================================================
[..] The device integrates two 12-bit Digital Analog Converters refered as
DAC channel1 with DAC_OUT1 (PA4) and DAC_OUT2 (PA5) as outputs.
[..] Digital to Analog conversion can be non-triggered using DAC_Trigger_None
and DAC_OUTx is available once writing to DHRx register using
DAC_SetChannel1Data() or DAC_SetChannel2Data()
[..] Digital to Analog conversion can be triggered by:
(#) External event: EXTI Line 9 (any GPIOx_Pin9) using DAC_Trigger_Ext_IT9.
The used pin (GPIOx_Pin9) must be configured in input mode.
(#) Timers TRGO: TIM2, TIM3,TIM7, TIM6 and TIM15
(DAC_Trigger_T2_TRGO, DAC_Trigger_T3_TRGO...)
The timer TRGO event should be selected using TIM_SelectOutputTrigger()
(#) Software using DAC_Trigger_Software
[..] Each DAC integrates an output buffer that can be used to
reduce the output impedance, and to drive external loads directly
without having to add an external operational amplifier.
To enable the output buffer use
DAC_InitStructure.DAC_OutputBuffer = DAC_OutputBuffer_Enable;
[..] Refer to the device datasheet for more details about output impedance
value with and without output buffer.
[..] DAC wave generation feature
Both DAC channels can be used to generate
1- Noise wave using DAC_WaveGeneration_Noise
2- Triangle wave using DAC_WaveGeneration_Triangle
[..] The DAC data format can be:
(#) 8-bit right alignment using DAC_Align_8b_R
(#) 12-bit left alignment using DAC_Align_12b_L
(#) 12-bit right alignment using DAC_Align_12b_R
[..] The analog output voltage on each DAC channel pin is determined
by the following equation: DAC_OUTx = VREF+ * DOR / 4095
with DOR is the Data Output Register
VEF+ is the input voltage reference (refer to the device datasheet)
e.g. To set DAC_OUT1 to 0.7V, use
DAC_SetChannel1Data(DAC_Align_12b_R, 868);
Assuming that VREF+ = 3.3, DAC_OUT1 = (3.3 * 868) / 4095 = 0.7V
[..] A DMA1 request can be generated when an external trigger (but not
a software trigger) occurs if DMA1 requests are enabled using
DAC_DMACmd()
DMA1 requests are mapped as following:
(+) DAC channel1 is mapped on DMA1 channel3 which must be already
configured
(+) DAC channel2 is mapped on DMA1 channel4 which must be already
configured
##### How to use this driver #####
===============================================================================
[..]
(+) Enable DAC APB1 clock to get write access to DAC registers
using RCC_APB1PeriphClockCmd(RCC_APB1Periph_DAC, ENABLE)
(+) Configure DAC_OUTx (DAC_OUT1: PA4, DAC_OUT2: PA5) in analog mode
using GPIO_Init() function
(+) Configure the DAC channel using DAC_Init()
(+) Enable the DAC channel using DAC_Cmd()
@endverbatim
*
******************************************************************************
* @attention
*
* <h2><center>&copy; COPYRIGHT(c) 2014 STMicroelectronics</center></h2>
*
* Redistribution and use in source and binary forms, with or without modification,
* are permitted provided that the following conditions are met:
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
* 3. Neither the name of STMicroelectronics nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
******************************************************************************
*/
/* Includes ------------------------------------------------------------------*/
#include "stm32f0xx_dac.h"
/** @addtogroup STM32F0xx_StdPeriph_Driver
* @{
*/
/** @defgroup DAC
* @brief DAC driver modules
* @{
*/
/* Private typedef -----------------------------------------------------------*/
/* Private define ------------------------------------------------------------*/
/* CR register Mask */
#define CR_CLEAR_MASK ((uint32_t)0x00000FFE) /* check the value of the mask */
/* DAC Dual Channels SWTRIG masks */
#define DUAL_SWTRIG_SET ((uint32_t)0x00000003) /*!< Only applicable for STM32F072 devices */
#define DUAL_SWTRIG_RESET ((uint32_t)0xFFFFFFFC) /*!< Only applicable for STM32F072 devices */
/* DHR registers offsets */
#define DHR12R1_OFFSET ((uint32_t)0x00000008)
#define DHR12R2_OFFSET ((uint32_t)0x00000014) /*!< Only applicable for STM32F072 devices */
#define DHR12RD_OFFSET ((uint32_t)0x00000020) /*!< Only applicable for STM32F072 devices */
/* DOR register offset */
#define DOR_OFFSET ((uint32_t)0x0000002C)
/* Private macro -------------------------------------------------------------*/
/* Private variables ---------------------------------------------------------*/
/* Private function prototypes -----------------------------------------------*/
/* Private functions ---------------------------------------------------------*/
/** @defgroup DAC_Private_Functions
* @{
*/
/** @defgroup DAC_Group1 DAC channels configuration
* @brief DAC channels configuration: trigger, output buffer, data format
*
@verbatim
===============================================================================
##### DAC channels configuration: trigger, output buffer, data format #####
===============================================================================
@endverbatim
* @{
*/
/**
* @brief Deinitializes the DAC peripheral registers to their default reset values.
* @param None
* @retval None
*/
void DAC_DeInit(void)
{
/* Enable DAC reset state */
RCC_APB1PeriphResetCmd(RCC_APB1Periph_DAC, ENABLE);
/* Release DAC from reset state */
RCC_APB1PeriphResetCmd(RCC_APB1Periph_DAC, DISABLE);
}
/**
* @brief Initializes the DAC peripheral according to the specified parameters
* in the DAC_InitStruct.
* @param DAC_Channel: the selected DAC channel.
* This parameter can be:
* @arg DAC_Channel_1: DAC Channel1 selected
* @arg DAC_Channel_2: DAC Channel2 selected, applicable only for STM32F072 devices
* @param DAC_InitStruct: pointer to a DAC_InitTypeDef structure that contains
* the configuration information for the specified DAC channel.
* @retval None
*/
void DAC_Init(uint32_t DAC_Channel, DAC_InitTypeDef* DAC_InitStruct)
{
uint32_t tmpreg1 = 0, tmpreg2 = 0;
/* Check the DAC parameters */
assert_param(IS_DAC_TRIGGER(DAC_InitStruct->DAC_Trigger));
assert_param(IS_DAC_GENERATE_WAVE(DAC_InitStruct->DAC_WaveGeneration));
assert_param(IS_DAC_LFSR_UNMASK_TRIANGLE_AMPLITUDE(DAC_InitStruct->DAC_LFSRUnmask_TriangleAmplitude));
assert_param(IS_DAC_OUTPUT_BUFFER_STATE(DAC_InitStruct->DAC_OutputBuffer));
/*---------------------------- DAC CR Configuration --------------------------*/
/* Get the DAC CR value */
tmpreg1 = DAC->CR;
/* Clear BOFFx, TENx, TSELx, WAVEx and MAMPx bits */
tmpreg1 &= ~(CR_CLEAR_MASK << DAC_Channel);
/* Configure for the selected DAC channel: buffer output, trigger,
wave generation, mask/amplitude for wave generation */
/* Set TSELx and TENx bits according to DAC_Trigger value */
/* Set WAVEx bits according to DAC_WaveGeneration value */
/* Set MAMPx bits according to DAC_LFSRUnmask_TriangleAmplitude value */
/* Set BOFFx bit according to DAC_OutputBuffer value */
tmpreg2 = (DAC_InitStruct->DAC_Trigger | DAC_InitStruct->DAC_WaveGeneration |
DAC_InitStruct->DAC_LFSRUnmask_TriangleAmplitude | \
DAC_InitStruct->DAC_OutputBuffer);
/* Calculate CR register value depending on DAC_Channel */
tmpreg1 |= tmpreg2 << DAC_Channel;
/* Write to DAC CR */
DAC->CR = tmpreg1;
}
/**
* @brief Fills each DAC_InitStruct member with its default value.
* @param DAC_InitStruct: pointer to a DAC_InitTypeDef structure which will
* be initialized.
* @retval None
*/
void DAC_StructInit(DAC_InitTypeDef* DAC_InitStruct)
{
/*--------------- Reset DAC init structure parameters values -----------------*/
/* Initialize the DAC_Trigger member */
DAC_InitStruct->DAC_Trigger = DAC_Trigger_None;
/* Initialize the DAC_WaveGeneration member */
DAC_InitStruct->DAC_WaveGeneration = DAC_WaveGeneration_None;
/* Initialize the DAC_LFSRUnmask_TriangleAmplitude member */
DAC_InitStruct->DAC_LFSRUnmask_TriangleAmplitude = DAC_LFSRUnmask_Bit0;
/* Initialize the DAC_OutputBuffer member */
DAC_InitStruct->DAC_OutputBuffer = DAC_OutputBuffer_Enable;
}
/**
* @brief Enables or disables the specified DAC channel.
* @param DAC_Channel: The selected DAC channel.
* This parameter can be one of the following values:
* @arg DAC_Channel_1: DAC Channel1 selected
* @arg DAC_Channel_2: DAC Channel2 selected, applicable only for STM32F072 devices
* @param NewState: new state of the DAC channel.
* This parameter can be: ENABLE or DISABLE.
* @note When the DAC channel is enabled the trigger source can no more be modified.
* @retval None
*/
void DAC_Cmd(uint32_t DAC_Channel, FunctionalState NewState)
{
/* Check the parameters */
assert_param(IS_DAC_CHANNEL(DAC_Channel));
assert_param(IS_FUNCTIONAL_STATE(NewState));
if (NewState != DISABLE)
{
/* Enable the selected DAC channel */
DAC->CR |= (DAC_CR_EN1 << DAC_Channel);
}
else
{
/* Disable the selected DAC channel */
DAC->CR &= (~(DAC_CR_EN1 << DAC_Channel));
}
}
/**
* @brief Enables or disables the selected DAC channel software trigger.
* @param DAC_Channel: The selected DAC channel.
* This parameter can be one of the following values:
* @arg DAC_Channel_1: DAC Channel1 selected
* @arg DAC_Channel_2: DAC Channel2 selected, applicable only for STM32F072 devices
* @param NewState: new state of the selected DAC channel software trigger.
* This parameter can be: ENABLE or DISABLE.
* @retval None
*/
void DAC_SoftwareTriggerCmd(uint32_t DAC_Channel, FunctionalState NewState)
{
/* Check the parameters */
assert_param(IS_DAC_CHANNEL(DAC_Channel));
assert_param(IS_FUNCTIONAL_STATE(NewState));
if (NewState != DISABLE)
{
/* Enable software trigger for the selected DAC channel */
DAC->SWTRIGR |= (uint32_t)DAC_SWTRIGR_SWTRIG1 << (DAC_Channel >> 4);
}
else
{
/* Disable software trigger for the selected DAC channel */
DAC->SWTRIGR &= ~((uint32_t)DAC_SWTRIGR_SWTRIG1 << (DAC_Channel >> 4));
}
}
/**
* @brief Enables or disables simultaneously the two DAC channels software triggers.
* This function is applicable only for STM32F072 devices.
* @param NewState: new state of the DAC channels software triggers.
* This parameter can be: ENABLE or DISABLE.
* @retval None
*/
void DAC_DualSoftwareTriggerCmd(FunctionalState NewState)
{
/* Check the parameters */
assert_param(IS_FUNCTIONAL_STATE(NewState));
if (NewState != DISABLE)
{
/* Enable software trigger for both DAC channels */
DAC->SWTRIGR |= DUAL_SWTRIG_SET;
}
else
{
/* Disable software trigger for both DAC channels */
DAC->SWTRIGR &= DUAL_SWTRIG_RESET;
}
}
/**
* @brief Enables or disables the selected DAC channel wave generation.
* This function is applicable only for STM32F072 devices.
* @param DAC_Channel: The selected DAC channel.
* This parameter can be:
* @arg DAC_Channel_1: DAC Channel1 selected
* @arg DAC_Channel_2: DAC Channel2 selected
* @param DAC_Wave: specifies the wave type to enable or disable.
* This parameter can be:
* @arg DAC_Wave_Noise: noise wave generation
* @arg DAC_Wave_Triangle: triangle wave generation
* @param NewState: new state of the selected DAC channel wave generation.
* This parameter can be: ENABLE or DISABLE.
* @retval None
*/
void DAC_WaveGenerationCmd(uint32_t DAC_Channel, uint32_t DAC_Wave, FunctionalState NewState)
{
/* Check the parameters */
assert_param(IS_DAC_CHANNEL(DAC_Channel));
assert_param(IS_DAC_WAVE(DAC_Wave));
assert_param(IS_FUNCTIONAL_STATE(NewState));
if (NewState != DISABLE)
{
/* Enable the selected wave generation for the selected DAC channel */
DAC->CR |= DAC_Wave << DAC_Channel;
}
else
{
/* Disable the selected wave generation for the selected DAC channel */
DAC->CR &= ~(DAC_Wave << DAC_Channel);
}
}
/**
* @brief Set the specified data holding register value for DAC channel1.
* @param DAC_Align: Specifies the data alignment for DAC channel1.
* This parameter can be one of the following values:
* @arg DAC_Align_8b_R: 8bit right data alignment selected
* @arg DAC_Align_12b_L: 12bit left data alignment selected
* @arg DAC_Align_12b_R: 12bit right data alignment selected
* @param Data: Data to be loaded in the selected data holding register.
* @retval None
*/
void DAC_SetChannel1Data(uint32_t DAC_Align, uint16_t Data)
{
__IO uint32_t tmp = 0;
/* Check the parameters */
assert_param(IS_DAC_ALIGN(DAC_Align));
assert_param(IS_DAC_DATA(Data));
tmp = (uint32_t)DAC_BASE;
tmp += DHR12R1_OFFSET + DAC_Align;
/* Set the DAC channel1 selected data holding register */
*(__IO uint32_t *) tmp = Data;
}
/**
* @brief Sets the specified data holding register value for DAC channel2.
* This function is applicable only for STM32F072 devices.
* @param DAC_Align: Specifies the data alignment for DAC channel2.
* This parameter can be:
* @arg DAC_Align_8b_R: 8bit right data alignment selected
* @arg DAC_Align_12b_L: 12bit left data alignment selected
* @arg DAC_Align_12b_R: 12bit right data alignment selected
* @param Data: Data to be loaded in the selected data holding register.
* @retval None
*/
void DAC_SetChannel2Data(uint32_t DAC_Align, uint16_t Data)
{
__IO uint32_t tmp = 0;
/* Check the parameters */
assert_param(IS_DAC_ALIGN(DAC_Align));
assert_param(IS_DAC_DATA(Data));
tmp = (uint32_t)DAC_BASE;
tmp += DHR12R2_OFFSET + DAC_Align;
/* Set the DAC channel2 selected data holding register */
*(__IO uint32_t *)tmp = Data;
}
/**
* @brief Sets the specified data holding register value for dual channel DAC.
* This function is applicable only for STM32F072 devices.
* @param DAC_Align: Specifies the data alignment for dual channel DAC.
* This parameter can be:
* @arg DAC_Align_8b_R: 8bit right data alignment selected
* @arg DAC_Align_12b_L: 12bit left data alignment selected
* @arg DAC_Align_12b_R: 12bit right data alignment selected
* @param Data2: Data for DAC Channel2 to be loaded in the selected data holding register.
* @param Data1: Data for DAC Channel1 to be loaded in the selected data holding register.
* @note In dual mode, a unique register access is required to write in both
* DAC channels at the same time.
* @retval None
*/
void DAC_SetDualChannelData(uint32_t DAC_Align, uint16_t Data2, uint16_t Data1)
{
uint32_t data = 0, tmp = 0;
/* Check the parameters */
assert_param(IS_DAC_ALIGN(DAC_Align));
assert_param(IS_DAC_DATA(Data1));
assert_param(IS_DAC_DATA(Data2));
/* Calculate and set dual DAC data holding register value */
if (DAC_Align == DAC_Align_8b_R)
{
data = ((uint32_t)Data2 << 8) | Data1;
}
else
{
data = ((uint32_t)Data2 << 16) | Data1;
}
tmp = (uint32_t)DAC_BASE;
tmp += DHR12RD_OFFSET + DAC_Align;
/* Set the dual DAC selected data holding register */
*(__IO uint32_t *)tmp = data;
}
/**
* @brief Returns the last data output value of the selected DAC channel.
* @param DAC_Channel: The selected DAC channel.
* This parameter can be one of the following values:
* @arg DAC_Channel_1: DAC Channel1 selected
* @arg DAC_Channel_2: DAC Channel2 selected, applicable only for STM32F072 devices
* @retval The selected DAC channel data output value.
*/
uint16_t DAC_GetDataOutputValue(uint32_t DAC_Channel)
{
__IO uint32_t tmp = 0;
/* Check the parameters */
assert_param(IS_DAC_CHANNEL(DAC_Channel));
tmp = (uint32_t) DAC_BASE ;
tmp += DOR_OFFSET + ((uint32_t)DAC_Channel >> 2);
/* Returns the DAC channel data output register value */
return (uint16_t) (*(__IO uint32_t*) tmp);
}
/**
* @}
*/
/** @defgroup DAC_Group2 DMA management functions
* @brief DMA management functions
*
@verbatim
===============================================================================
##### DMA management functions #####
===============================================================================
@endverbatim
* @{
*/
/**
* @brief Enables or disables the specified DAC channel DMA request.
* When enabled DMA1 is generated when an external trigger (EXTI Line9,
* TIM2, TIM3, TIM6 or TIM15 but not a software trigger) occurs
* @param DAC_Channel: the selected DAC channel.
* This parameter can be one of the following values:
* @arg DAC_Channel_1: DAC Channel1 selected
* @arg DAC_Channel_2: DAC Channel2 selected, applicable only for STM32F072 devices
* @param NewState: new state of the selected DAC channel DMA request.
* This parameter can be: ENABLE or DISABLE.
* @note The DAC channel1 is mapped on DMA1 channel3 which must be already configured.
* @note The DAC channel2 is mapped on DMA1 channel4 which must be already configured.
* @retval None
*/
void DAC_DMACmd(uint32_t DAC_Channel, FunctionalState NewState)
{
/* Check the parameters */
assert_param(IS_DAC_CHANNEL(DAC_Channel));
assert_param(IS_FUNCTIONAL_STATE(NewState));
if (NewState != DISABLE)
{
/* Enable the selected DAC channel DMA request */
DAC->CR |= (DAC_CR_DMAEN1 << DAC_Channel);
}
else
{
/* Disable the selected DAC channel DMA request */
DAC->CR &= (~(DAC_CR_DMAEN1 << DAC_Channel));
}
}
/**
* @}
*/
/** @defgroup DAC_Group3 Interrupts and flags management functions
* @brief Interrupts and flags management functions
*
@verbatim
===============================================================================
##### Interrupts and flags management functions #####
===============================================================================
@endverbatim
* @{
*/
/**
* @brief Enables or disables the specified DAC interrupts.
* @param DAC_Channel: The selected DAC channel.
* This parameter can be:
* @arg DAC_Channel_1: DAC Channel1 selected
* @arg DAC_Channel_2: DAC Channel2 selected, applicable only for STM32F072 devices
* @param DAC_IT: specifies the DAC interrupt sources to be enabled or disabled.
* This parameter can be the following values:
* @arg DAC_IT_DMAUDR: DMA underrun interrupt mask
* @note The DMA underrun occurs when a second external trigger arrives before the
* acknowledgement for the first external trigger is received (first request).
* @param NewState: new state of the specified DAC interrupts.
* This parameter can be: ENABLE or DISABLE.
* @retval None
*/
void DAC_ITConfig(uint32_t DAC_Channel, uint32_t DAC_IT, FunctionalState NewState)
{
/* Check the parameters */
assert_param(IS_DAC_CHANNEL(DAC_Channel));
assert_param(IS_FUNCTIONAL_STATE(NewState));
assert_param(IS_DAC_IT(DAC_IT));
if (NewState != DISABLE)
{
/* Enable the selected DAC interrupts */
DAC->CR |= (DAC_IT << DAC_Channel);
}
else
{
/* Disable the selected DAC interrupts */
DAC->CR &= (~(uint32_t)(DAC_IT << DAC_Channel));
}
}
/**
* @brief Checks whether the specified DAC flag is set or not.
* @param DAC_Channel: The selected DAC channel.
* This parameter can be one of the following values:
* @arg DAC_Channel_1: DAC Channel1 selected
* @arg DAC_Channel_2: DAC Channel2 selected, applicable only for STM32F072 devices
* @param DAC_FLAG: specifies the flag to check.
* This parameter can be only of the following value:
* @arg DAC_FLAG_DMAUDR: DMA underrun flag
* @note The DMA underrun occurs when a second external trigger arrives before the
* acknowledgement for the first external trigger is received (first request).
* @retval The new state of DAC_FLAG (SET or RESET).
*/
FlagStatus DAC_GetFlagStatus(uint32_t DAC_Channel, uint32_t DAC_FLAG)
{
FlagStatus bitstatus = RESET;
/* Check the parameters */
assert_param(IS_DAC_CHANNEL(DAC_Channel));
assert_param(IS_DAC_FLAG(DAC_FLAG));
/* Check the status of the specified DAC flag */
if ((DAC->SR & (DAC_FLAG << DAC_Channel)) != (uint8_t)RESET)
{
/* DAC_FLAG is set */
bitstatus = SET;
}
else
{
/* DAC_FLAG is reset */
bitstatus = RESET;
}
/* Return the DAC_FLAG status */
return bitstatus;
}
/**
* @brief Clears the DAC channel's pending flags.
* @param DAC_Channel: The selected DAC channel.
* This parameter can be one of the following values:
* @arg DAC_Channel_1: DAC Channel1 selected
* @arg DAC_Channel_2: DAC Channel2 selected, applicable only for STM32F072 devices
* @param DAC_FLAG: specifies the flag to clear.
* This parameter can be of the following value:
* @arg DAC_FLAG_DMAUDR: DMA underrun flag
* @retval None
*/
void DAC_ClearFlag(uint32_t DAC_Channel, uint32_t DAC_FLAG)
{
/* Check the parameters */
assert_param(IS_DAC_CHANNEL(DAC_Channel));
assert_param(IS_DAC_FLAG(DAC_FLAG));
/* Clear the selected DAC flags */
DAC->SR = (DAC_FLAG << DAC_Channel);
}
/**
* @brief Checks whether the specified DAC interrupt has occurred or not.
* @param DAC_Channel: The selected DAC channel.
* This parameter can be one of the following values:
* @arg DAC_Channel_1: DAC Channel1 selected
* @arg DAC_Channel_2: DAC Channel2 selected, applicable only for STM32F072 devices
* @param DAC_IT: specifies the DAC interrupt source to check.
* This parameter can be the following values:
* @arg DAC_IT_DMAUDR: DMA underrun interrupt mask
* @note The DMA underrun occurs when a second external trigger arrives before the
* acknowledgement for the first external trigger is received (first request).
* @retval The new state of DAC_IT (SET or RESET).
*/
ITStatus DAC_GetITStatus(uint32_t DAC_Channel, uint32_t DAC_IT)
{
ITStatus bitstatus = RESET;
uint32_t enablestatus = 0;
/* Check the parameters */
assert_param(IS_DAC_CHANNEL(DAC_Channel));
assert_param(IS_DAC_IT(DAC_IT));
/* Get the DAC_IT enable bit status */
enablestatus = (DAC->CR & (DAC_IT << DAC_Channel)) ;
/* Check the status of the specified DAC interrupt */
if (((DAC->SR & (DAC_IT << DAC_Channel)) != (uint32_t)RESET) && enablestatus)
{
/* DAC_IT is set */
bitstatus = SET;
}
else
{
/* DAC_IT is reset */
bitstatus = RESET;
}
/* Return the DAC_IT status */
return bitstatus;
}
/**
* @brief Clears the DAC channel's interrupt pending bits.
* @param DAC_Channel: The selected DAC channel.
* This parameter can be one of the following values:
* @arg DAC_Channel_1: DAC Channel1 selected
* @arg DAC_Channel_2: DAC Channel2 selected, applicable only for STM32F072 devices
* @param DAC_IT: specifies the DAC interrupt pending bit to clear.
* This parameter can be the following values:
* @arg DAC_IT_DMAUDR: DMA underrun interrupt mask
* @retval None
*/
void DAC_ClearITPendingBit(uint32_t DAC_Channel, uint32_t DAC_IT)
{
/* Check the parameters */
assert_param(IS_DAC_CHANNEL(DAC_Channel));
assert_param(IS_DAC_IT(DAC_IT));
/* Clear the selected DAC interrupt pending bits */
DAC->SR = (DAC_IT << DAC_Channel);
}
/**
* @}
*/
/**
* @}
*/
/**
* @}
*/
/**
* @}
*/
/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/

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/**
******************************************************************************
* @file stm32f0xx_dac.h
* @author MCD Application Team
* @version V1.3.0
* @date 16-January-2014
* @brief This file contains all the functions prototypes for the DAC firmware
* library, applicable only for STM32F051 and STM32F072 devices.
******************************************************************************
* @attention
*
* <h2><center>&copy; COPYRIGHT(c) 2014 STMicroelectronics</center></h2>
*
* Redistribution and use in source and binary forms, with or without modification,
* are permitted provided that the following conditions are met:
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
* 3. Neither the name of STMicroelectronics nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
******************************************************************************
*/
/* Define to prevent recursive inclusion -------------------------------------*/
#ifndef __STM32F0XX_DAC_H
#define __STM32F0XX_DAC_H
#ifdef __cplusplus
extern "C" {
#endif
/* Includes ------------------------------------------------------------------*/
#include "stm32f0xx.h"
/** @addtogroup STM32F0xx_StdPeriph_Driver
* @{
*/
/** @addtogroup DAC
* @{
*/
/* Exported types ------------------------------------------------------------*/
/**
* @brief DAC Init structure definition
*/
typedef struct
{
uint32_t DAC_Trigger; /*!< Specifies the external trigger for the selected DAC channel.
This parameter can be a value of @ref DAC_trigger_selection */
uint32_t DAC_WaveGeneration; /*!< Specifies whether DAC channel noise waves or triangle waves
are generated, or whether no wave is generated.
This parameter can be a value of @ref DAC_wave_generation
This parameter is only applicable for STM32F072 devices */
uint32_t DAC_LFSRUnmask_TriangleAmplitude; /*!< Specifies the LFSR mask for noise wave generation or
the maximum amplitude triangle generation for the DAC channel.
This parameter can be a value of @ref DAC_lfsrunmask_triangleamplitude
This parameter is only applicable for STM32F072 devices */
uint32_t DAC_OutputBuffer; /*!< Specifies whether the DAC channel output buffer is enabled or disabled.
This parameter can be a value of @ref DAC_output_buffer */
}DAC_InitTypeDef;
/* Exported constants --------------------------------------------------------*/
/** @defgroup DAC_Exported_Constants
* @{
*/
/** @defgroup DAC_Trigger
* @{
*/
#define DAC_Trigger_None ((uint32_t)0x00000000) /*!< Conversion is automatic once the DAC1_DHRxxxx register
has been loaded, and not by external trigger */
#define DAC_Trigger_T6_TRGO ((uint32_t)0x00000004) /*!< TIM6 TRGO selected as external conversion trigger for DAC channel1 */
#define DAC_Trigger_T3_TRGO ((uint32_t)0x0000000C) /*!< TIM3 TRGO selected as external conversion trigger for DAC channel1 */
#define DAC_Trigger_T7_TRGO ((uint32_t)0x00000014) /*!< TIM7 TRGO selected as external conversion trigger for DAC channel1,
applicable only for STM32F072 devices */
#define DAC_Trigger_T15_TRGO ((uint32_t)0x0000001C) /*!< TIM15 TRGO selected as external conversion trigger for DAC channel1 */
#define DAC_Trigger_T2_TRGO ((uint32_t)0x00000024) /*!< TIM2 TRGO selected as external conversion trigger for DAC channel1 */
#define DAC_Trigger_Ext_IT9 ((uint32_t)0x00000034) /*!< EXTI Line9 event selected as external conversion trigger for DAC channels */
#define DAC_Trigger_Software ((uint32_t)0x0000003C) /*!< Conversion started by software trigger for DAC channels */
#define IS_DAC_TRIGGER(TRIGGER) (((TRIGGER) == DAC_Trigger_None) || \
((TRIGGER) == DAC_Trigger_T6_TRGO) || \
((TRIGGER) == DAC_Trigger_T7_TRGO) || \
((TRIGGER) == DAC_Trigger_T3_TRGO) || \
((TRIGGER) == DAC_Trigger_T15_TRGO) || \
((TRIGGER) == DAC_Trigger_T2_TRGO) || \
((TRIGGER) == DAC_Trigger_Ext_IT9) || \
((TRIGGER) == DAC_Trigger_Software))
/**
* @}
*/
/** @defgroup DAC_wave_generation
* @brief This parameters are only applicable for STM32F072 devices.
* @{
*/
#define DAC_WaveGeneration_None ((uint32_t)0x00000000)
#define DAC_WaveGeneration_Noise ((uint32_t)0x00000040)
#define DAC_WaveGeneration_Triangle ((uint32_t)0x00000080)
#define IS_DAC_GENERATE_WAVE(WAVE) (((WAVE) == DAC_WaveGeneration_None) || \
((WAVE) == DAC_WaveGeneration_Noise) || \
((WAVE) == DAC_WaveGeneration_Triangle))
/**
* @}
*/
/** @defgroup DAC_lfsrunmask_triangleamplitude
* @brief These parameters are only applicable for STM32F072 devices.
* @{
*/
#define DAC_LFSRUnmask_Bit0 ((uint32_t)0x00000000) /*!< Unmask DAC channel LFSR bit0 for noise wave generation */
#define DAC_LFSRUnmask_Bits1_0 ((uint32_t)0x00000100) /*!< Unmask DAC channel LFSR bit[1:0] for noise wave generation */
#define DAC_LFSRUnmask_Bits2_0 ((uint32_t)0x00000200) /*!< Unmask DAC channel LFSR bit[2:0] for noise wave generation */
#define DAC_LFSRUnmask_Bits3_0 ((uint32_t)0x00000300) /*!< Unmask DAC channel LFSR bit[3:0] for noise wave generation */
#define DAC_LFSRUnmask_Bits4_0 ((uint32_t)0x00000400) /*!< Unmask DAC channel LFSR bit[4:0] for noise wave generation */
#define DAC_LFSRUnmask_Bits5_0 ((uint32_t)0x00000500) /*!< Unmask DAC channel LFSR bit[5:0] for noise wave generation */
#define DAC_LFSRUnmask_Bits6_0 ((uint32_t)0x00000600) /*!< Unmask DAC channel LFSR bit[6:0] for noise wave generation */
#define DAC_LFSRUnmask_Bits7_0 ((uint32_t)0x00000700) /*!< Unmask DAC channel LFSR bit[7:0] for noise wave generation */
#define DAC_LFSRUnmask_Bits8_0 ((uint32_t)0x00000800) /*!< Unmask DAC channel LFSR bit[8:0] for noise wave generation */
#define DAC_LFSRUnmask_Bits9_0 ((uint32_t)0x00000900) /*!< Unmask DAC channel LFSR bit[9:0] for noise wave generation */
#define DAC_LFSRUnmask_Bits10_0 ((uint32_t)0x00000A00) /*!< Unmask DAC channel LFSR bit[10:0] for noise wave generation */
#define DAC_LFSRUnmask_Bits11_0 ((uint32_t)0x00000B00) /*!< Unmask DAC channel LFSR bit[11:0] for noise wave generation */
#define DAC_TriangleAmplitude_1 ((uint32_t)0x00000000) /*!< Select max triangle amplitude of 1 */
#define DAC_TriangleAmplitude_3 ((uint32_t)0x00000100) /*!< Select max triangle amplitude of 3 */
#define DAC_TriangleAmplitude_7 ((uint32_t)0x00000200) /*!< Select max triangle amplitude of 7 */
#define DAC_TriangleAmplitude_15 ((uint32_t)0x00000300) /*!< Select max triangle amplitude of 15 */
#define DAC_TriangleAmplitude_31 ((uint32_t)0x00000400) /*!< Select max triangle amplitude of 31 */
#define DAC_TriangleAmplitude_63 ((uint32_t)0x00000500) /*!< Select max triangle amplitude of 63 */
#define DAC_TriangleAmplitude_127 ((uint32_t)0x00000600) /*!< Select max triangle amplitude of 127 */
#define DAC_TriangleAmplitude_255 ((uint32_t)0x00000700) /*!< Select max triangle amplitude of 255 */
#define DAC_TriangleAmplitude_511 ((uint32_t)0x00000800) /*!< Select max triangle amplitude of 511 */
#define DAC_TriangleAmplitude_1023 ((uint32_t)0x00000900) /*!< Select max triangle amplitude of 1023 */
#define DAC_TriangleAmplitude_2047 ((uint32_t)0x00000A00) /*!< Select max triangle amplitude of 2047 */
#define DAC_TriangleAmplitude_4095 ((uint32_t)0x00000B00) /*!< Select max triangle amplitude of 4095 */
#define IS_DAC_LFSR_UNMASK_TRIANGLE_AMPLITUDE(VALUE) (((VALUE) == DAC_LFSRUnmask_Bit0) || \
((VALUE) == DAC_LFSRUnmask_Bits1_0) || \
((VALUE) == DAC_LFSRUnmask_Bits2_0) || \
((VALUE) == DAC_LFSRUnmask_Bits3_0) || \
((VALUE) == DAC_LFSRUnmask_Bits4_0) || \
((VALUE) == DAC_LFSRUnmask_Bits5_0) || \
((VALUE) == DAC_LFSRUnmask_Bits6_0) || \
((VALUE) == DAC_LFSRUnmask_Bits7_0) || \
((VALUE) == DAC_LFSRUnmask_Bits8_0) || \
((VALUE) == DAC_LFSRUnmask_Bits9_0) || \
((VALUE) == DAC_LFSRUnmask_Bits10_0) || \
((VALUE) == DAC_LFSRUnmask_Bits11_0) || \
((VALUE) == DAC_TriangleAmplitude_1) || \
((VALUE) == DAC_TriangleAmplitude_3) || \
((VALUE) == DAC_TriangleAmplitude_7) || \
((VALUE) == DAC_TriangleAmplitude_15) || \
((VALUE) == DAC_TriangleAmplitude_31) || \
((VALUE) == DAC_TriangleAmplitude_63) || \
((VALUE) == DAC_TriangleAmplitude_127) || \
((VALUE) == DAC_TriangleAmplitude_255) || \
((VALUE) == DAC_TriangleAmplitude_511) || \
((VALUE) == DAC_TriangleAmplitude_1023) || \
((VALUE) == DAC_TriangleAmplitude_2047) || \
((VALUE) == DAC_TriangleAmplitude_4095))
/**
* @}
*/
/** @defgroup DAC_OutputBuffer
* @{
*/
#define DAC_OutputBuffer_Enable ((uint32_t)0x00000000)
#define DAC_OutputBuffer_Disable DAC_CR_BOFF1
#define IS_DAC_OUTPUT_BUFFER_STATE(STATE) (((STATE) == DAC_OutputBuffer_Enable) || \
((STATE) == DAC_OutputBuffer_Disable))
/**
* @}
*/
/** @defgroup DAC_Channel_selection
* @{
*/
#define DAC_Channel_1 ((uint32_t)0x00000000)
#define DAC_Channel_2 ((uint32_t)0x00000010) /*!< Only applicable for STM32F072 devices */
#define IS_DAC_CHANNEL(CHANNEL) (((CHANNEL) == DAC_Channel_1) || \
((CHANNEL) == DAC_Channel_2))
/**
* @}
*/
/** @defgroup DAC_data_alignment
* @{
*/
#define DAC_Align_12b_R ((uint32_t)0x00000000)
#define DAC_Align_12b_L ((uint32_t)0x00000004)
#define DAC_Align_8b_R ((uint32_t)0x00000008)
#define IS_DAC_ALIGN(ALIGN) (((ALIGN) == DAC_Align_12b_R) || \
((ALIGN) == DAC_Align_12b_L) || \
((ALIGN) == DAC_Align_8b_R))
/**
* @}
*/
/** @defgroup DAC_wave_generation
* @brief These parameters are only applicable for STM32F072 devices.
* @{
*/
#define DAC_Wave_Noise ((uint32_t)0x00000040)
#define DAC_Wave_Triangle ((uint32_t)0x00000080)
#define IS_DAC_WAVE(WAVE) (((WAVE) == DAC_Wave_Noise) || \
((WAVE) == DAC_Wave_Triangle))
/**
* @}
*/
/** @defgroup DAC_data
* @{
*/
#define IS_DAC_DATA(DATA) ((DATA) <= 0xFFF0)
/**
* @}
*/
/** @defgroup DAC_interrupts_definition
* @{
*/
#define DAC_IT_DMAUDR DAC_SR_DMAUDR1
#define IS_DAC_IT(IT) (((IT) == DAC_IT_DMAUDR))
/**
* @}
*/
/** @defgroup DAC_flags_definition
* @{
*/
#define DAC_FLAG_DMAUDR DAC_SR_DMAUDR1
#define IS_DAC_FLAG(FLAG) (((FLAG) == DAC_FLAG_DMAUDR))
/**
* @}
*/
/**
* @}
*/
/* Exported macro ------------------------------------------------------------*/
/* Exported functions ------------------------------------------------------- */
/* Function used to set the DAC configuration to the default reset state *****/
void DAC_DeInit(void);
/* DAC channels configuration: trigger, output buffer, data format functions */
void DAC_Init(uint32_t DAC_Channel, DAC_InitTypeDef* DAC_InitStruct);
void DAC_StructInit(DAC_InitTypeDef* DAC_InitStruct);
void DAC_Cmd(uint32_t DAC_Channel, FunctionalState NewState);
void DAC_SoftwareTriggerCmd(uint32_t DAC_Channel, FunctionalState NewState);
void DAC_DualSoftwareTriggerCmd(FunctionalState NewState); /*!< Only applicable for STM32F072 devices */
void DAC_WaveGenerationCmd(uint32_t DAC_Channel, uint32_t DAC_Wave, FunctionalState NewState); /*!< Only applicable for STM32F072 devices */
void DAC_SetChannel1Data(uint32_t DAC_Align, uint16_t Data);
void DAC_SetChannel2Data(uint32_t DAC_Align, uint16_t Data); /*!< Only applicable for STM32F072 devices */
void DAC_SetDualChannelData(uint32_t DAC_Align, uint16_t Data2, uint16_t Data1); /*!< Only applicable for STM32F072 devices */
uint16_t DAC_GetDataOutputValue(uint32_t DAC_Channel);
/* DMA management functions ***************************************************/
void DAC_DMACmd(uint32_t DAC_Channel, FunctionalState NewState);
/* Interrupts and flags management functions **********************************/
void DAC_ITConfig(uint32_t DAC_Channel, uint32_t DAC_IT, FunctionalState NewState);
FlagStatus DAC_GetFlagStatus(uint32_t DAC_Channel, uint32_t DAC_FLAG);
void DAC_ClearFlag(uint32_t DAC_Channel, uint32_t DAC_FLAG);
ITStatus DAC_GetITStatus(uint32_t DAC_Channel, uint32_t DAC_IT);
void DAC_ClearITPendingBit(uint32_t DAC_Channel, uint32_t DAC_IT);
#ifdef __cplusplus
}
#endif
#endif /*__STM32F0XX_DAC_H */
/**
* @}
*/
/**
* @}
*/
/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/

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/**
******************************************************************************
* @file stm32f0xx_dbgmcu.c
* @author MCD Application Team
* @version V1.3.0
* @date 16-January-2014
* @brief This file provides firmware functions to manage the following
* functionalities of the Debug MCU (DBGMCU) peripheral:
* + Device and Revision ID management
* + Peripherals Configuration
* @verbatim
* @endverbatim
*
******************************************************************************
* @attention
*
* <h2><center>&copy; COPYRIGHT(c) 2014 STMicroelectronics</center></h2>
*
* Redistribution and use in source and binary forms, with or without modification,
* are permitted provided that the following conditions are met:
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
* 3. Neither the name of STMicroelectronics nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
******************************************************************************
*/
/* Includes ------------------------------------------------------------------*/
#include "stm32f0xx_dbgmcu.h"
/** @addtogroup STM32F0xx_StdPeriph_Driver
* @{
*/
/** @defgroup DBGMCU
* @brief DBGMCU driver modules
* @{
*/
/* Private typedef -----------------------------------------------------------*/
/* Private define ------------------------------------------------------------*/
#define IDCODE_DEVID_MASK ((uint32_t)0x00000FFF)
/* Private macro -------------------------------------------------------------*/
/* Private variables ---------------------------------------------------------*/
/* Private function prototypes -----------------------------------------------*/
/* Private functions ---------------------------------------------------------*/
/** @defgroup DBGMCU_Private_Functions
* @{
*/
/** @defgroup DBGMCU_Group1 Device and Revision ID management functions
* @brief Device and Revision ID management functions
*
@verbatim
==============================================================================
##### Device and Revision ID management functions #####
==============================================================================
@endverbatim
* @{
*/
/**
* @brief Returns the device revision identifier.
* @param None
* @retval Device revision identifier
*/
uint32_t DBGMCU_GetREVID(void)
{
return(DBGMCU->IDCODE >> 16);
}
/**
* @brief Returns the device identifier.
* @param None
* @retval Device identifier
*/
uint32_t DBGMCU_GetDEVID(void)
{
return(DBGMCU->IDCODE & IDCODE_DEVID_MASK);
}
/**
* @}
*/
/** @defgroup DBGMCU_Group2 Peripherals Configuration functions
* @brief Peripherals Configuration
*
@verbatim
==============================================================================
##### Peripherals Configuration functions #####
==============================================================================
@endverbatim
* @{
*/
/**
* @brief Configures low power mode behavior when the MCU is in Debug mode.
* @param DBGMCU_Periph: specifies the low power mode.
* This parameter can be any combination of the following values:
* @arg DBGMCU_STOP: Keep debugger connection during STOP mode
* @arg DBGMCU_STANDBY: Keep debugger connection during STANDBY mode
* @param NewState: new state of the specified low power mode in Debug mode.
* This parameter can be: ENABLE or DISABLE.
* @retval None
*/
void DBGMCU_Config(uint32_t DBGMCU_Periph, FunctionalState NewState)
{
/* Check the parameters */
assert_param(IS_DBGMCU_PERIPH(DBGMCU_Periph));
assert_param(IS_FUNCTIONAL_STATE(NewState));
if (NewState != DISABLE)
{
DBGMCU->CR |= DBGMCU_Periph;
}
else
{
DBGMCU->CR &= ~DBGMCU_Periph;
}
}
/**
* @brief Configures APB1 peripheral behavior when the MCU is in Debug mode.
* @param DBGMCU_Periph: specifies the APB1 peripheral.
* This parameter can be any combination of the following values:
* @arg DBGMCU_TIM2_STOP: TIM2 counter stopped when Core is halted,
* not applicable for STM32F030 devices
* @arg DBGMCU_TIM3_STOP: TIM3 counter stopped when Core is halted
* @arg DBGMCU_TIM6_STOP: TIM6 counter stopped when Core is halted
* @arg DBGMCU_TIM7_STOP: TIM7 counter stopped when Core is halted,
* applicable only for STM32F072 devices
* @arg DBGMCU_TIM14_STOP: TIM14 counter stopped when Core is halted
* @arg DBGMCU_RTC_STOP: RTC Calendar and Wakeup counter stopped
* when Core is halted.
* @arg DBGMCU_WWDG_STOP: Debug WWDG stopped when Core is halted
* @arg DBGMCU_IWDG_STOP: Debug IWDG stopped when Core is halted
* @arg DBGMCU_I2C1_SMBUS_TIMEOUT: I2C1 SMBUS timeout mode stopped
* when Core is halted
* @arg DBGMCU_CAN1_STOP: Debug CAN1 stopped when Core is halted,
* applicable only for STM32F042 and STM32F072 devices
* @param NewState: new state of the specified APB1 peripheral in Debug mode.
* This parameter can be: ENABLE or DISABLE.
* @retval None
*/
void DBGMCU_APB1PeriphConfig(uint32_t DBGMCU_Periph, FunctionalState NewState)
{
/* Check the parameters */
assert_param(IS_DBGMCU_APB1PERIPH(DBGMCU_Periph));
assert_param(IS_FUNCTIONAL_STATE(NewState));
if (NewState != DISABLE)
{
DBGMCU->APB1FZ |= DBGMCU_Periph;
}
else
{
DBGMCU->APB1FZ &= ~DBGMCU_Periph;
}
}
/**
* @brief Configures APB2 peripheral behavior when the MCU is in Debug mode.
* @param DBGMCU_Periph: specifies the APB2 peripheral.
* This parameter can be any combination of the following values:
* @arg DBGMCU_TIM1_STOP: TIM1 counter stopped when Core is halted
* @arg DBGMCU_TIM15_STOP: TIM15 counter stopped when Core is halted
* @arg DBGMCU_TIM16_STOP: TIM16 counter stopped when Core is halted
* @arg DBGMCU_TIM17_STOP: TIM17 counter stopped when Core is halted
* @param NewState: new state of the specified APB2 peripheral in Debug mode.
* This parameter can be: ENABLE or DISABLE.
* @retval None
*/
void DBGMCU_APB2PeriphConfig(uint32_t DBGMCU_Periph, FunctionalState NewState)
{
/* Check the parameters */
assert_param(IS_DBGMCU_APB2PERIPH(DBGMCU_Periph));
assert_param(IS_FUNCTIONAL_STATE(NewState));
if (NewState != DISABLE)
{
DBGMCU->APB2FZ |= DBGMCU_Periph;
}
else
{
DBGMCU->APB2FZ &= ~DBGMCU_Periph;
}
}
/**
* @}
*/
/**
* @}
*/
/**
* @}
*/
/**
* @}
*/
/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/

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/**
******************************************************************************
* @file stm32f0xx_dbgmcu.h
* @author MCD Application Team
* @version V1.3.0
* @date 16-January-2014
* @brief This file contains all the functions prototypes for the DBGMCU firmware
* library.
******************************************************************************
* @attention
*
* <h2><center>&copy; COPYRIGHT(c) 2014 STMicroelectronics</center></h2>
*
* Redistribution and use in source and binary forms, with or without modification,
* are permitted provided that the following conditions are met:
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
* 3. Neither the name of STMicroelectronics nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
******************************************************************************
*/
/* Define to prevent recursive inclusion -------------------------------------*/
#ifndef __STM32F0XX_DBGMCU_H
#define __STM32F0XX_DBGMCU_H
#ifdef __cplusplus
extern "C" {
#endif
/* Includes ------------------------------------------------------------------*/
#include "stm32f0xx.h"
/** @addtogroup STM32F0xx_StdPeriph_Driver
* @{
*/
/** @addtogroup DBGMCU
* @{
*/
/* Exported types ------------------------------------------------------------*/
/* Exported constants --------------------------------------------------------*/
/** @defgroup DBGMCU_Exported_Constants
* @{
*/
#define DBGMCU_STOP DBGMCU_CR_DBG_STOP
#define DBGMCU_STANDBY DBGMCU_CR_DBG_STANDBY
#define IS_DBGMCU_PERIPH(PERIPH) ((((PERIPH) & 0xFFFFFFF9) == 0x00) && ((PERIPH) != 0x00))
#define DBGMCU_TIM2_STOP DBGMCU_APB1_FZ_DBG_TIM2_STOP /*!< Not applicable for STM32F030 devices */
#define DBGMCU_TIM3_STOP DBGMCU_APB1_FZ_DBG_TIM3_STOP
#define DBGMCU_TIM6_STOP DBGMCU_APB1_FZ_DBG_TIM6_STOP
#define DBGMCU_TIM7_STOP DBGMCU_APB1_FZ_DBG_TIM7_STOP /*!< Only applicable for STM32F072 devices */
#define DBGMCU_TIM14_STOP DBGMCU_APB1_FZ_DBG_TIM14_STOP
#define DBGMCU_RTC_STOP DBGMCU_APB1_FZ_DBG_RTC_STOP
#define DBGMCU_WWDG_STOP DBGMCU_APB1_FZ_DBG_WWDG_STOP
#define DBGMCU_IWDG_STOP DBGMCU_APB1_FZ_DBG_IWDG_STOP
#define DBGMCU_I2C1_SMBUS_TIMEOUT DBGMCU_APB1_FZ_DBG_I2C1_SMBUS_TIMEOUT
#define DBGMCU_CAN1_STOP DBGMCU_APB1_FZ_DBG_CAN1_STOP /*!< Only applicable for STM32F042 and STM32F072 devices */
#define IS_DBGMCU_APB1PERIPH(PERIPH) ((((PERIPH) & 0xFDDFE2CC) == 0x00) && ((PERIPH) != 0x00))
#define DBGMCU_TIM1_STOP DBGMCU_APB2_FZ_DBG_TIM1_STOP
#define DBGMCU_TIM15_STOP DBGMCU_APB2_FZ_DBG_TIM15_STOP
#define DBGMCU_TIM16_STOP DBGMCU_APB2_FZ_DBG_TIM16_STOP
#define DBGMCU_TIM17_STOP DBGMCU_APB2_FZ_DBG_TIM17_STOP
#define IS_DBGMCU_APB2PERIPH(PERIPH) ((((PERIPH) & 0xFFF8F7FF) == 0x00) && ((PERIPH) != 0x00))
/**
* @}
*/
/* Exported macro ------------------------------------------------------------*/
/* Exported functions ------------------------------------------------------- */
/* Device and Revision ID management functions ********************************/
uint32_t DBGMCU_GetREVID(void);
uint32_t DBGMCU_GetDEVID(void);
/* Peripherals Configuration functions ****************************************/
void DBGMCU_Config(uint32_t DBGMCU_Periph, FunctionalState NewState);
void DBGMCU_APB1PeriphConfig(uint32_t DBGMCU_Periph, FunctionalState NewState);
void DBGMCU_APB2PeriphConfig(uint32_t DBGMCU_Periph, FunctionalState NewState);
#ifdef __cplusplus
}
#endif
#endif /* __STM32F0XX_DBGMCU_H */
/**
* @}
*/
/**
* @}
*/
/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/

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/**
******************************************************************************
* @file stm32f0xx_dma.c
* @author MCD Application Team
* @version V1.3.0
* @date 16-January-2014
* @brief This file provides firmware functions to manage the following
* functionalities of the Direct Memory Access controller (DMA):
* + Initialization and Configuration
* + Data Counter
* + Interrupts and flags management
*
* @verbatim
==============================================================================
##### How to use this driver #####
==============================================================================
[..]
(#) Enable The DMA controller clock using
RCC_AHBPeriphClockCmd(RCC_AHBPeriph_DMA1, ENABLE) function for DMA1.
(#) Enable and configure the peripheral to be connected to the DMA channel
(except for internal SRAM / FLASH memories: no initialization is necessary).
(#) For a given Channel, program the Source and Destination addresses,
the transfer Direction, the Buffer Size, the Peripheral and Memory
Incrementation mode and Data Size, the Circular or Normal mode,
the channel transfer Priority and the Memory-to-Memory transfer
mode (if needed) using the DMA_Init() function.
(#) Enable the NVIC and the corresponding interrupt(s) using the function
DMA_ITConfig() if you need to use DMA interrupts.
(#) Enable the DMA channel using the DMA_Cmd() function.
(#) Activate the needed channel Request using PPP_DMACmd() function for
any PPP peripheral except internal SRAM and FLASH (ie. SPI, USART ...)
The function allowing this operation is provided in each PPP peripheral
driver (ie. SPI_DMACmd for SPI peripheral).
(#) Optionally, you can configure the number of data to be transferred
when the channel is disabled (ie. after each Transfer Complete event
or when a Transfer Error occurs) using the function DMA_SetCurrDataCounter().
And you can get the number of remaining data to be transferred using
the function DMA_GetCurrDataCounter() at run time (when the DMA channel is
enabled and running).
(#) To control DMA events you can use one of the following two methods:
(##) Check on DMA channel flags using the function DMA_GetFlagStatus().
(##) Use DMA interrupts through the function DMA_ITConfig() at initialization
phase and DMA_GetITStatus() function into interrupt routines in
communication phase.
After checking on a flag you should clear it using DMA_ClearFlag()
function. And after checking on an interrupt event you should
clear it using DMA_ClearITPendingBit() function.
@endverbatim
*
******************************************************************************
* @attention
*
* <h2><center>&copy; COPYRIGHT(c) 2014 STMicroelectronics</center></h2>
*
* Redistribution and use in source and binary forms, with or without modification,
* are permitted provided that the following conditions are met:
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
* 3. Neither the name of STMicroelectronics nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
******************************************************************************
*/
/* Includes ------------------------------------------------------------------*/
#include "stm32f0xx_dma.h"
/** @addtogroup STM32F0xx_StdPeriph_Driver
* @{
*/
/** @defgroup DMA
* @brief DMA driver modules
* @{
*/
/* Private typedef -----------------------------------------------------------*/
/* Private define ------------------------------------------------------------*/
#define CCR_CLEAR_MASK ((uint32_t)0xFFFF800F) /* DMA Channel config registers Masks */
/* DMA1 Channelx interrupt pending bit masks */
#define DMA1_CHANNEL1_IT_MASK ((uint32_t)(DMA_ISR_GIF1 | DMA_ISR_TCIF1 | DMA_ISR_HTIF1 | DMA_ISR_TEIF1))
#define DMA1_CHANNEL2_IT_MASK ((uint32_t)(DMA_ISR_GIF2 | DMA_ISR_TCIF2 | DMA_ISR_HTIF2 | DMA_ISR_TEIF2))
#define DMA1_CHANNEL3_IT_MASK ((uint32_t)(DMA_ISR_GIF3 | DMA_ISR_TCIF3 | DMA_ISR_HTIF3 | DMA_ISR_TEIF3))
#define DMA1_CHANNEL4_IT_MASK ((uint32_t)(DMA_ISR_GIF4 | DMA_ISR_TCIF4 | DMA_ISR_HTIF4 | DMA_ISR_TEIF4))
#define DMA1_CHANNEL5_IT_MASK ((uint32_t)(DMA_ISR_GIF5 | DMA_ISR_TCIF5 | DMA_ISR_HTIF5 | DMA_ISR_TEIF5))
#define DMA1_CHANNEL6_IT_MASK ((uint32_t)(DMA_ISR_GIF6 | DMA_ISR_TCIF6 | DMA_ISR_HTIF6 | DMA_ISR_TEIF6)) /*!< Only applicable for STM32F072 devices */
#define DMA1_CHANNEL7_IT_MASK ((uint32_t)(DMA_ISR_GIF7 | DMA_ISR_TCIF7 | DMA_ISR_HTIF7 | DMA_ISR_TEIF7)) /*!< Only applicable for STM32F072 devices */
/* Private macro -------------------------------------------------------------*/
/* Private variables ---------------------------------------------------------*/
/* Private function prototypes -----------------------------------------------*/
/* Private functions ---------------------------------------------------------*/
/** @defgroup DMA_Private_Functions
* @{
*/
/** @defgroup DMA_Group1 Initialization and Configuration functions
* @brief Initialization and Configuration functions
*
@verbatim
===============================================================================
##### Initialization and Configuration functions #####
===============================================================================
[..] This subsection provides functions allowing to initialize the DMA channel
source and destination addresses, incrementation and data sizes, transfer
direction, buffer size, circular/normal mode selection, memory-to-memory
mode selection and channel priority value.
[..] The DMA_Init() function follows the DMA configuration procedures as described
in reference manual (RM0091).
@endverbatim
* @{
*/
/**
* @brief Deinitializes the DMAy Channelx registers to their default reset
* values.
* @param DMAy_Channelx: where y can be 1 to select the DMA and
* x can be 1 to 7 for DMA1 to select the DMA Channel.
* @note Channel 6 and 7 are available only for STM32F072 devices.
* @retval None
*/
void DMA_DeInit(DMA_Channel_TypeDef* DMAy_Channelx)
{
/* Check the parameters */
assert_param(IS_DMA_ALL_PERIPH(DMAy_Channelx));
/* Disable the selected DMAy Channelx */
DMAy_Channelx->CCR &= (uint16_t)(~DMA_CCR_EN);
/* Reset DMAy Channelx control register */
DMAy_Channelx->CCR = 0;
/* Reset DMAy Channelx remaining bytes register */
DMAy_Channelx->CNDTR = 0;
/* Reset DMAy Channelx peripheral address register */
DMAy_Channelx->CPAR = 0;
/* Reset DMAy Channelx memory address register */
DMAy_Channelx->CMAR = 0;
if (DMAy_Channelx == DMA1_Channel1)
{
/* Reset interrupt pending bits for DMA1 Channel1 */
DMA1->IFCR |= DMA1_CHANNEL1_IT_MASK;
}
else if (DMAy_Channelx == DMA1_Channel2)
{
/* Reset interrupt pending bits for DMA1 Channel2 */
DMA1->IFCR |= DMA1_CHANNEL2_IT_MASK;
}
else if (DMAy_Channelx == DMA1_Channel3)
{
/* Reset interrupt pending bits for DMA1 Channel3 */
DMA1->IFCR |= DMA1_CHANNEL3_IT_MASK;
}
else if (DMAy_Channelx == DMA1_Channel4)
{
/* Reset interrupt pending bits for DMA1 Channel4 */
DMA1->IFCR |= DMA1_CHANNEL4_IT_MASK;
}
else if (DMAy_Channelx == DMA1_Channel5)
{
/* Reset interrupt pending bits for DMA1 Channel5 */
DMA1->IFCR |= DMA1_CHANNEL5_IT_MASK;
}
else if (DMAy_Channelx == DMA1_Channel6)
{
/* Reset interrupt pending bits for DMA1 Channel6 */
DMA1->IFCR |= DMA1_CHANNEL6_IT_MASK;
}
else
{
if (DMAy_Channelx == DMA1_Channel7)
{
/* Reset interrupt pending bits for DMA1 Channel7 */
DMA1->IFCR |= DMA1_CHANNEL7_IT_MASK;
}
}
}
/**
* @brief Initializes the DMAy Channelx according to the specified parameters
* in the DMA_InitStruct.
* @param DMAy_Channelx: where y can be 1 to select the DMA and x can be 1 to 7
* for DMA1 to select the DMA Channel.
* @note Channel 6 and 7 are available only for STM32F072 devices.
* @param DMA_InitStruct: pointer to a DMA_InitTypeDef structure that contains
* the configuration information for the specified DMA Channel.
* @retval None
*/
void DMA_Init(DMA_Channel_TypeDef* DMAy_Channelx, DMA_InitTypeDef* DMA_InitStruct)
{
uint32_t tmpreg = 0;
/* Check the parameters */
assert_param(IS_DMA_ALL_PERIPH(DMAy_Channelx));
assert_param(IS_DMA_DIR(DMA_InitStruct->DMA_DIR));
assert_param(IS_DMA_BUFFER_SIZE(DMA_InitStruct->DMA_BufferSize));
assert_param(IS_DMA_PERIPHERAL_INC_STATE(DMA_InitStruct->DMA_PeripheralInc));
assert_param(IS_DMA_MEMORY_INC_STATE(DMA_InitStruct->DMA_MemoryInc));
assert_param(IS_DMA_PERIPHERAL_DATA_SIZE(DMA_InitStruct->DMA_PeripheralDataSize));
assert_param(IS_DMA_MEMORY_DATA_SIZE(DMA_InitStruct->DMA_MemoryDataSize));
assert_param(IS_DMA_MODE(DMA_InitStruct->DMA_Mode));
assert_param(IS_DMA_PRIORITY(DMA_InitStruct->DMA_Priority));
assert_param(IS_DMA_M2M_STATE(DMA_InitStruct->DMA_M2M));
/*--------------------------- DMAy Channelx CCR Configuration ----------------*/
/* Get the DMAy_Channelx CCR value */
tmpreg = DMAy_Channelx->CCR;
/* Clear MEM2MEM, PL, MSIZE, PSIZE, MINC, PINC, CIRC and DIR bits */
tmpreg &= CCR_CLEAR_MASK;
/* Configure DMAy Channelx: data transfer, data size, priority level and mode */
/* Set DIR bit according to DMA_DIR value */
/* Set CIRC bit according to DMA_Mode value */
/* Set PINC bit according to DMA_PeripheralInc value */
/* Set MINC bit according to DMA_MemoryInc value */
/* Set PSIZE bits according to DMA_PeripheralDataSize value */
/* Set MSIZE bits according to DMA_MemoryDataSize value */
/* Set PL bits according to DMA_Priority value */
/* Set the MEM2MEM bit according to DMA_M2M value */
tmpreg |= DMA_InitStruct->DMA_DIR | DMA_InitStruct->DMA_Mode |
DMA_InitStruct->DMA_PeripheralInc | DMA_InitStruct->DMA_MemoryInc |
DMA_InitStruct->DMA_PeripheralDataSize | DMA_InitStruct->DMA_MemoryDataSize |
DMA_InitStruct->DMA_Priority | DMA_InitStruct->DMA_M2M;
/* Write to DMAy Channelx CCR */
DMAy_Channelx->CCR = tmpreg;
/*--------------------------- DMAy Channelx CNDTR Configuration --------------*/
/* Write to DMAy Channelx CNDTR */
DMAy_Channelx->CNDTR = DMA_InitStruct->DMA_BufferSize;
/*--------------------------- DMAy Channelx CPAR Configuration ---------------*/
/* Write to DMAy Channelx CPAR */
DMAy_Channelx->CPAR = DMA_InitStruct->DMA_PeripheralBaseAddr;
/*--------------------------- DMAy Channelx CMAR Configuration ---------------*/
/* Write to DMAy Channelx CMAR */
DMAy_Channelx->CMAR = DMA_InitStruct->DMA_MemoryBaseAddr;
}
/**
* @brief Fills each DMA_InitStruct member with its default value.
* @param DMA_InitStruct: pointer to a DMA_InitTypeDef structure which will
* be initialized.
* @retval None
*/
void DMA_StructInit(DMA_InitTypeDef* DMA_InitStruct)
{
/*-------------- Reset DMA init structure parameters values ------------------*/
/* Initialize the DMA_PeripheralBaseAddr member */
DMA_InitStruct->DMA_PeripheralBaseAddr = 0;
/* Initialize the DMA_MemoryBaseAddr member */
DMA_InitStruct->DMA_MemoryBaseAddr = 0;
/* Initialize the DMA_DIR member */
DMA_InitStruct->DMA_DIR = DMA_DIR_PeripheralSRC;
/* Initialize the DMA_BufferSize member */
DMA_InitStruct->DMA_BufferSize = 0;
/* Initialize the DMA_PeripheralInc member */
DMA_InitStruct->DMA_PeripheralInc = DMA_PeripheralInc_Disable;
/* Initialize the DMA_MemoryInc member */
DMA_InitStruct->DMA_MemoryInc = DMA_MemoryInc_Disable;
/* Initialize the DMA_PeripheralDataSize member */
DMA_InitStruct->DMA_PeripheralDataSize = DMA_PeripheralDataSize_Byte;
/* Initialize the DMA_MemoryDataSize member */
DMA_InitStruct->DMA_MemoryDataSize = DMA_MemoryDataSize_Byte;
/* Initialize the DMA_Mode member */
DMA_InitStruct->DMA_Mode = DMA_Mode_Normal;
/* Initialize the DMA_Priority member */
DMA_InitStruct->DMA_Priority = DMA_Priority_Low;
/* Initialize the DMA_M2M member */
DMA_InitStruct->DMA_M2M = DMA_M2M_Disable;
}
/**
* @brief Enables or disables the specified DMAy Channelx.
* @param DMAy_Channelx: where y can be 1 to select the DMA and
* x can be 1 to 7 for DMA1 to select the DMA Channel.
* @note Channel 6 and 7 are available only for STM32F072 devices.
* @param NewState: new state of the DMAy Channelx.
* This parameter can be: ENABLE or DISABLE.
* @retval None
*/
void DMA_Cmd(DMA_Channel_TypeDef* DMAy_Channelx, FunctionalState NewState)
{
/* Check the parameters */
assert_param(IS_DMA_ALL_PERIPH(DMAy_Channelx));
assert_param(IS_FUNCTIONAL_STATE(NewState));
if (NewState != DISABLE)
{
/* Enable the selected DMAy Channelx */
DMAy_Channelx->CCR |= DMA_CCR_EN;
}
else
{
/* Disable the selected DMAy Channelx */
DMAy_Channelx->CCR &= (uint16_t)(~DMA_CCR_EN);
}
}
/**
* @}
*/
/** @defgroup DMA_Group2 Data Counter functions
* @brief Data Counter functions
*
@verbatim
===============================================================================
##### Data Counter functions #####
===============================================================================
[..] This subsection provides function allowing to configure and read the buffer
size (number of data to be transferred).The DMA data counter can be written
only when the DMA channel is disabled (ie. after transfer complete event).
[..] The following function can be used to write the Channel data counter value:
(+) void DMA_SetCurrDataCounter(DMA_Channel_TypeDef* DMAy_Channelx, uint16_t
DataNumber).
-@- It is advised to use this function rather than DMA_Init() in situations
where only the Data buffer needs to be reloaded.
[..] The DMA data counter can be read to indicate the number of remaining transfers
for the relative DMA channel. This counter is decremented at the end of each
data transfer and when the transfer is complete:
(+) If Normal mode is selected: the counter is set to 0.
(+) If Circular mode is selected: the counter is reloaded with the initial
value(configured before enabling the DMA channel).
[..] The following function can be used to read the Channel data counter value:
(+) uint16_t DMA_GetCurrDataCounter(DMA_Channel_TypeDef* DMAy_Channelx).
@endverbatim
* @{
*/
/**
* @brief Sets the number of data units in the current DMAy Channelx transfer.
* @param DMAy_Channelx: where y can be 1 to select the DMA and x can be
* 1 to 7 for DMA1 to select the DMA Channel.
* @note Channel 6 and 7 are available only for STM32F072 devices.
* @param DataNumber: The number of data units in the current DMAy Channelx
* transfer.
* @note This function can only be used when the DMAy_Channelx is disabled.
* @retval None.
*/
void DMA_SetCurrDataCounter(DMA_Channel_TypeDef* DMAy_Channelx, uint16_t DataNumber)
{
/* Check the parameters */
assert_param(IS_DMA_ALL_PERIPH(DMAy_Channelx));
/*--------------------------- DMAy Channelx CNDTR Configuration --------------*/
/* Write to DMAy Channelx CNDTR */
DMAy_Channelx->CNDTR = DataNumber;
}
/**
* @brief Returns the number of remaining data units in the current
* DMAy Channelx transfer.
* @param DMAy_Channelx: where y can be 1 to select the DMA and
* x can be 1 to 7 for DMA1 to select the DMA Channel.
* @note Channel 6 and 7 are available only for STM32F072 devices.
* @retval The number of remaining data units in the current DMAy Channelx
* transfer.
*/
uint16_t DMA_GetCurrDataCounter(DMA_Channel_TypeDef* DMAy_Channelx)
{
/* Check the parameters */
assert_param(IS_DMA_ALL_PERIPH(DMAy_Channelx));
/* Return the number of remaining data units for DMAy Channelx */
return ((uint16_t)(DMAy_Channelx->CNDTR));
}
/**
* @}
*/
/** @defgroup DMA_Group3 Interrupts and flags management functions
* @brief Interrupts and flags management functions
*
@verbatim
===============================================================================
##### Interrupts and flags management functions #####
===============================================================================
[..] This subsection provides functions allowing to configure the DMA Interrupts
sources and check or clear the flags or pending bits status.
The user should identify which mode will be used in his application to manage
the DMA controller events: Polling mode or Interrupt mode.
*** Polling Mode ***
====================
[..] Each DMA channel can be managed through 4 event Flags:(y : DMA Controller
number x : DMA channel number ).
(#) DMAy_FLAG_TCx : to indicate that a Transfer Complete event occurred.
(#) DMAy_FLAG_HTx : to indicate that a Half-Transfer Complete event occurred.
(#) DMAy_FLAG_TEx : to indicate that a Transfer Error occurred.
(#) DMAy_FLAG_GLx : to indicate that at least one of the events described
above occurred.
-@- Clearing DMAy_FLAG_GLx results in clearing all other pending flags of the
same channel (DMAy_FLAG_TCx, DMAy_FLAG_HTx and DMAy_FLAG_TEx).
[..]In this Mode it is advised to use the following functions:
(+) FlagStatus DMA_GetFlagStatus(uint32_t DMA_FLAG);
(+) void DMA_ClearFlag(uint32_t DMA_FLAG);
*** Interrupt Mode ***
======================
[..] Each DMA channel can be managed through 4 Interrupts:
(+) Interrupt Source
(##) DMA_IT_TC: specifies the interrupt source for the Transfer Complete
event.
(##) DMA_IT_HT : specifies the interrupt source for the Half-transfer Complete
event.
(##) DMA_IT_TE : specifies the interrupt source for the transfer errors event.
(##) DMA_IT_GL : to indicate that at least one of the interrupts described
above occurred.
-@@- Clearing DMA_IT_GL interrupt results in clearing all other interrupts of
the same channel (DMA_IT_TCx, DMA_IT_HT and DMA_IT_TE).
[..]In this Mode it is advised to use the following functions:
(+) void DMA_ITConfig(DMA_Channel_TypeDef* DMAy_Channelx, uint32_t DMA_IT,
FunctionalState NewState);
(+) ITStatus DMA_GetITStatus(uint32_t DMA_IT);
(+) void DMA_ClearITPendingBit(uint32_t DMA_IT);
@endverbatim
* @{
*/
/**
* @brief Enables or disables the specified DMAy Channelx interrupts.
* @param DMAy_Channelx: where y can be 1 to select the DMA and
* x can be 1 to 7 for DMA1 to select the DMA Channel.
* @note Channel 6 and 7 are available only for STM32F072 devices.
* @param DMA_IT: specifies the DMA interrupts sources to be enabled
* or disabled.
* This parameter can be any combination of the following values:
* @arg DMA_IT_TC: Transfer complete interrupt mask
* @arg DMA_IT_HT: Half transfer interrupt mask
* @arg DMA_IT_TE: Transfer error interrupt mask
* @param NewState: new state of the specified DMA interrupts.
* This parameter can be: ENABLE or DISABLE.
* @retval None
*/
void DMA_ITConfig(DMA_Channel_TypeDef* DMAy_Channelx, uint32_t DMA_IT, FunctionalState NewState)
{
/* Check the parameters */
assert_param(IS_DMA_ALL_PERIPH(DMAy_Channelx));
assert_param(IS_DMA_CONFIG_IT(DMA_IT));
assert_param(IS_FUNCTIONAL_STATE(NewState));
if (NewState != DISABLE)
{
/* Enable the selected DMA interrupts */
DMAy_Channelx->CCR |= DMA_IT;
}
else
{
/* Disable the selected DMA interrupts */
DMAy_Channelx->CCR &= ~DMA_IT;
}
}
/**
* @brief Checks whether the specified DMAy Channelx flag is set or not.
* @param DMA_FLAG: specifies the flag to check.
* This parameter can be one of the following values:
* @arg DMA1_FLAG_GL1: DMA1 Channel1 global flag.
* @arg DMA1_FLAG_TC1: DMA1 Channel1 transfer complete flag.
* @arg DMA1_FLAG_HT1: DMA1 Channel1 half transfer flag.
* @arg DMA1_FLAG_TE1: DMA1 Channel1 transfer error flag.
* @arg DMA1_FLAG_GL2: DMA1 Channel2 global flag.
* @arg DMA1_FLAG_TC2: DMA1 Channel2 transfer complete flag.
* @arg DMA1_FLAG_HT2: DMA1 Channel2 half transfer flag.
* @arg DMA1_FLAG_TE2: DMA1 Channel2 transfer error flag.
* @arg DMA1_FLAG_GL3: DMA1 Channel3 global flag.
* @arg DMA1_FLAG_TC3: DMA1 Channel3 transfer complete flag.
* @arg DMA1_FLAG_HT3: DMA1 Channel3 half transfer flag.
* @arg DMA1_FLAG_TE3: DMA1 Channel3 transfer error flag.
* @arg DMA1_FLAG_GL4: DMA1 Channel4 global flag.
* @arg DMA1_FLAG_TC4: DMA1 Channel4 transfer complete flag.
* @arg DMA1_FLAG_HT4: DMA1 Channel4 half transfer flag.
* @arg DMA1_FLAG_TE4: DMA1 Channel4 transfer error flag.
* @arg DMA1_FLAG_GL5: DMA1 Channel5 global flag.
* @arg DMA1_FLAG_TC5: DMA1 Channel5 transfer complete flag.
* @arg DMA1_FLAG_HT5: DMA1 Channel5 half transfer flag.
* @arg DMA1_FLAG_TE5: DMA1 Channel5 transfer error flag.
* @arg DMA1_FLAG_GL6: DMA1 Channel6 global flag, applicable only for STM32F072 devices.
* @arg DMA1_FLAG_TC6: DMA1 Channel6 transfer complete flag, applicable only for STM32F072 devices.
* @arg DMA1_FLAG_HT6: DMA1 Channel6 half transfer flag, applicable only for STM32F072 devices.
* @arg DMA1_FLAG_TE6: DMA1 Channel6 transfer error flag, applicable only for STM32F072 devices.
* @arg DMA1_FLAG_GL7: DMA1 Channel7 global flag, applicable only for STM32F072 devices.
* @arg DMA1_FLAG_TC7: DMA1 Channel7 transfer complete flag, applicable only for STM32F072 devices.
* @arg DMA1_FLAG_HT7: DMA1 Channel7 half transfer flag, applicable only for STM32F072 devices.
* @arg DMA1_FLAG_TE7: DMA1 Channel7 transfer error flag, applicable only for STM32F072 devices.
* @note The Global flag (DMAy_FLAG_GLx) is set whenever any of the other flags
* relative to the same channel is set (Transfer Complete, Half-transfer
* Complete or Transfer Error flags: DMAy_FLAG_TCx, DMAy_FLAG_HTx or
* DMAy_FLAG_TEx).
*
* @retval The new state of DMA_FLAG (SET or RESET).
*/
FlagStatus DMA_GetFlagStatus(uint32_t DMA_FLAG)
{
FlagStatus bitstatus = RESET;
/* Check the parameters */
assert_param(IS_DMA_GET_FLAG(DMA_FLAG));
/* Check the status of the specified DMA flag */
if ((DMA1->ISR & DMA_FLAG) != (uint32_t)RESET)
{
/* DMA_FLAG is set */
bitstatus = SET;
}
else
{
/* DMA_FLAG is reset */
bitstatus = RESET;
}
/* Return the DMA_FLAG status */
return bitstatus;
}
/**
* @brief Clears the DMAy Channelx's pending flags.
* @param DMA_FLAG: specifies the flag to clear.
* This parameter can be any combination (for the same DMA) of the following values:
* @arg DMA1_FLAG_GL1: DMA1 Channel1 global flag.
* @arg DMA1_FLAG_TC1: DMA1 Channel1 transfer complete flag.
* @arg DMA1_FLAG_HT1: DMA1 Channel1 half transfer flag.
* @arg DMA1_FLAG_TE1: DMA1 Channel1 transfer error flag.
* @arg DMA1_FLAG_GL2: DMA1 Channel2 global flag.
* @arg DMA1_FLAG_TC2: DMA1 Channel2 transfer complete flag.
* @arg DMA1_FLAG_HT2: DMA1 Channel2 half transfer flag.
* @arg DMA1_FLAG_TE2: DMA1 Channel2 transfer error flag.
* @arg DMA1_FLAG_GL3: DMA1 Channel3 global flag.
* @arg DMA1_FLAG_TC3: DMA1 Channel3 transfer complete flag.
* @arg DMA1_FLAG_HT3: DMA1 Channel3 half transfer flag.
* @arg DMA1_FLAG_TE3: DMA1 Channel3 transfer error flag.
* @arg DMA1_FLAG_GL4: DMA1 Channel4 global flag.
* @arg DMA1_FLAG_TC4: DMA1 Channel4 transfer complete flag.
* @arg DMA1_FLAG_HT4: DMA1 Channel4 half transfer flag.
* @arg DMA1_FLAG_TE4: DMA1 Channel4 transfer error flag.
* @arg DMA1_FLAG_GL5: DMA1 Channel5 global flag.
* @arg DMA1_FLAG_TC5: DMA1 Channel5 transfer complete flag.
* @arg DMA1_FLAG_HT5: DMA1 Channel5 half transfer flag.
* @arg DMA1_FLAG_TE5: DMA1 Channel5 transfer error flag.
* @arg DMA1_FLAG_GL6: DMA1 Channel6 global flag, applicable only for STM32F072 devices.
* @arg DMA1_FLAG_TC6: DMA1 Channel6 transfer complete flag, applicable only for STM32F072 devices.
* @arg DMA1_FLAG_HT6: DMA1 Channel6 half transfer flag, applicable only for STM32F072 devices.
* @arg DMA1_FLAG_TE6: DMA1 Channel6 transfer error flag, applicable only for STM32F072 devices.
* @arg DMA1_FLAG_GL7: DMA1 Channel7 global flag, applicable only for STM32F072 devices.
* @arg DMA1_FLAG_TC7: DMA1 Channel7 transfer complete flag, applicable only for STM32F072 devices.
* @arg DMA1_FLAG_HT7: DMA1 Channel7 half transfer flag, applicable only for STM32F072 devices.
* @arg DMA1_FLAG_TE7: DMA1 Channel7 transfer error flag, applicable only for STM32F072 devices.
*
* @note Clearing the Global flag (DMAy_FLAG_GLx) results in clearing all other flags
* relative to the same channel (Transfer Complete, Half-transfer Complete and
* Transfer Error flags: DMAy_FLAG_TCx, DMAy_FLAG_HTx and DMAy_FLAG_TEx).
*
* @retval None
*/
void DMA_ClearFlag(uint32_t DMA_FLAG)
{
/* Check the parameters */
assert_param(IS_DMA_CLEAR_FLAG(DMA_FLAG));
/* Clear the selected DMA flags */
DMA1->IFCR = DMA_FLAG;
}
/**
* @brief Checks whether the specified DMAy Channelx interrupt has occurred or not.
* @param DMA_IT: specifies the DMA interrupt source to check.
* This parameter can be one of the following values:
* @arg DMA1_IT_GL1: DMA1 Channel1 global interrupt.
* @arg DMA1_IT_TC1: DMA1 Channel1 transfer complete interrupt.
* @arg DMA1_IT_HT1: DMA1 Channel1 half transfer interrupt.
* @arg DMA1_IT_TE1: DMA1 Channel1 transfer error interrupt.
* @arg DMA1_IT_GL2: DMA1 Channel2 global interrupt.
* @arg DMA1_IT_TC2: DMA1 Channel2 transfer complete interrupt.
* @arg DMA1_IT_HT2: DMA1 Channel2 half transfer interrupt.
* @arg DMA1_IT_TE2: DMA1 Channel2 transfer error interrupt.
* @arg DMA1_IT_GL3: DMA1 Channel3 global interrupt.
* @arg DMA1_IT_TC3: DMA1 Channel3 transfer complete interrupt.
* @arg DMA1_IT_HT3: DMA1 Channel3 half transfer interrupt.
* @arg DMA1_IT_TE3: DMA1 Channel3 transfer error interrupt.
* @arg DMA1_IT_GL4: DMA1 Channel4 global interrupt.
* @arg DMA1_IT_TC4: DMA1 Channel4 transfer complete interrupt.
* @arg DMA1_IT_HT4: DMA1 Channel4 half transfer interrupt.
* @arg DMA1_IT_TE4: DMA1 Channel4 transfer error interrupt.
* @arg DMA1_IT_GL5: DMA1 Channel5 global interrupt.
* @arg DMA1_IT_TC5: DMA1 Channel5 transfer complete interrupt.
* @arg DMA1_IT_HT5: DMA1 Channel5 half transfer interrupt.
* @arg DMA1_IT_TE5: DMA1 Channel5 transfer error interrupt.
* @arg DMA1_IT_GL6: DMA1 Channel6 global interrupt, applicable only for STM32F072 devices.
* @arg DMA1_IT_TC6: DMA1 Channel6 transfer complete interrupt, applicable only for STM32F072 devices.
* @arg DMA1_IT_HT6: DMA1 Channel6 half transfer interrupt, applicable only for STM32F072 devices.
* @arg DMA1_IT_TE6: DMA1 Channel6 transfer error interrupt, applicable only for STM32F072 devices.
* @arg DMA1_IT_GL7: DMA1 Channel7 global interrupt, applicable only for STM32F072 devices.
* @arg DMA1_IT_TC7: DMA1 Channel7 transfer complete interrupt, applicable only for STM32F072 devices.
* @arg DMA1_IT_HT7: DMA1 Channel7 half transfer interrupt, applicable only for STM32F072 devices.
* @arg DMA1_IT_TE7: DMA1 Channel7 transfer error interrupt, applicable only for STM32F072 devices.
*
* @note The Global interrupt (DMAy_FLAG_GLx) is set whenever any of the other
* interrupts relative to the same channel is set (Transfer Complete,
* Half-transfer Complete or Transfer Error interrupts: DMAy_IT_TCx,
* DMAy_IT_HTx or DMAy_IT_TEx).
*
* @retval The new state of DMA_IT (SET or RESET).
*/
ITStatus DMA_GetITStatus(uint32_t DMA_IT)
{
ITStatus bitstatus = RESET;
/* Check the parameters */
assert_param(IS_DMA_GET_IT(DMA_IT));
/* Check the status of the specified DMA interrupt */
if ((DMA1->ISR & DMA_IT) != (uint32_t)RESET)
{
/* DMA_IT is set */
bitstatus = SET;
}
else
{
/* DMA_IT is reset */
bitstatus = RESET;
}
/* Return the DMA_IT status */
return bitstatus;
}
/**
* @brief Clears the DMAy Channelx's interrupt pending bits.
* @param DMA_IT: specifies the DMA interrupt pending bit to clear.
* This parameter can be any combination (for the same DMA) of the following values:
* @arg DMA1_IT_GL1: DMA1 Channel1 global interrupt.
* @arg DMA1_IT_TC1: DMA1 Channel1 transfer complete interrupt.
* @arg DMA1_IT_HT1: DMA1 Channel1 half transfer interrupt.
* @arg DMA1_IT_TE1: DMA1 Channel1 transfer error interrupt.
* @arg DMA1_IT_GL2: DMA1 Channel2 global interrupt.
* @arg DMA1_IT_TC2: DMA1 Channel2 transfer complete interrupt.
* @arg DMA1_IT_HT2: DMA1 Channel2 half transfer interrupt.
* @arg DMA1_IT_TE2: DMA1 Channel2 transfer error interrupt.
* @arg DMA1_IT_GL3: DMA1 Channel3 global interrupt.
* @arg DMA1_IT_TC3: DMA1 Channel3 transfer complete interrupt.
* @arg DMA1_IT_HT3: DMA1 Channel3 half transfer interrupt.
* @arg DMA1_IT_TE3: DMA1 Channel3 transfer error interrupt.
* @arg DMA1_IT_GL4: DMA1 Channel4 global interrupt.
* @arg DMA1_IT_TC4: DMA1 Channel4 transfer complete interrupt.
* @arg DMA1_IT_HT4: DMA1 Channel4 half transfer interrupt.
* @arg DMA1_IT_TE4: DMA1 Channel4 transfer error interrupt.
* @arg DMA1_IT_GL5: DMA1 Channel5 global interrupt.
* @arg DMA1_IT_TC5: DMA1 Channel5 transfer complete interrupt.
* @arg DMA1_IT_HT5: DMA1 Channel5 half transfer interrupt.
* @arg DMA1_IT_TE5: DMA1 Channel5 transfer error interrupt.
* @arg DMA1_IT_GL6: DMA1 Channel6 global interrupt, applicable only for STM32F072 devices.
* @arg DMA1_IT_TC6: DMA1 Channel6 transfer complete interrupt, applicable only for STM32F072 devices.
* @arg DMA1_IT_HT6: DMA1 Channel6 half transfer interrupt, applicable only for STM32F072 devices.
* @arg DMA1_IT_TE6: DMA1 Channel6 transfer error interrupt, applicable only for STM32F072 devices.
* @arg DMA1_IT_GL7: DMA1 Channel7 global interrupt, applicable only for STM32F072 devices.
* @arg DMA1_IT_TC7: DMA1 Channel7 transfer complete interrupt, applicable only for STM32F072 devices.
* @arg DMA1_IT_HT7: DMA1 Channel7 half transfer interrupt, applicable only for STM32F072 devices.
* @arg DMA1_IT_TE7: DMA1 Channel7 transfer error interrupt, applicable only for STM32F072 devices.
*
* @note Clearing the Global interrupt (DMAy_IT_GLx) results in clearing all other
* interrupts relative to the same channel (Transfer Complete, Half-transfer
* Complete and Transfer Error interrupts: DMAy_IT_TCx, DMAy_IT_HTx and
* DMAy_IT_TEx).
*
* @retval None
*/
void DMA_ClearITPendingBit(uint32_t DMA_IT)
{
/* Check the parameters */
assert_param(IS_DMA_CLEAR_IT(DMA_IT));
/* Clear the selected DMA interrupt pending bits */
DMA1->IFCR = DMA_IT;
}
/**
* @}
*/
/**
* @}
*/
/**
* @}
*/
/**
* @}
*/
/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/

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@ -0,0 +1,387 @@
/**
******************************************************************************
* @file stm32f0xx_dma.h
* @author MCD Application Team
* @version V1.3.0
* @date 16-January-2014
* @brief This file contains all the functions prototypes for the DMA firmware
* library.
******************************************************************************
* @attention
*
* <h2><center>&copy; COPYRIGHT(c) 2014 STMicroelectronics</center></h2>
*
* Redistribution and use in source and binary forms, with or without modification,
* are permitted provided that the following conditions are met:
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
* 3. Neither the name of STMicroelectronics nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
******************************************************************************
*/
/* Define to prevent recursive inclusion -------------------------------------*/
#ifndef __STM32F0XX_DMA_H
#define __STM32F0XX_DMA_H
#ifdef __cplusplus
extern "C" {
#endif
/* Includes ------------------------------------------------------------------*/
#include "stm32f0xx.h"
/** @addtogroup STM32F0xx_StdPeriph_Driver
* @{
*/
/** @addtogroup DMA
* @{
*/
/* Exported types ------------------------------------------------------------*/
/**
* @brief DMA Init structures definition
*/
typedef struct
{
uint32_t DMA_PeripheralBaseAddr; /*!< Specifies the peripheral base address for DMAy Channelx. */
uint32_t DMA_MemoryBaseAddr; /*!< Specifies the memory base address for DMAy Channelx. */
uint32_t DMA_DIR; /*!< Specifies if the peripheral is the source or destination.
This parameter can be a value of @ref DMA_data_transfer_direction */
uint32_t DMA_BufferSize; /*!< Specifies the buffer size, in data unit, of the specified Channel.
The data unit is equal to the configuration set in DMA_PeripheralDataSize
or DMA_MemoryDataSize members depending in the transfer direction */
uint32_t DMA_PeripheralInc; /*!< Specifies whether the Peripheral address register is incremented or not.
This parameter can be a value of @ref DMA_peripheral_incremented_mode */
uint32_t DMA_MemoryInc; /*!< Specifies whether the memory address register is incremented or not.
This parameter can be a value of @ref DMA_memory_incremented_mode */
uint32_t DMA_PeripheralDataSize; /*!< Specifies the Peripheral data width.
This parameter can be a value of @ref DMA_peripheral_data_size */
uint32_t DMA_MemoryDataSize; /*!< Specifies the Memory data width.
This parameter can be a value of @ref DMA_memory_data_size */
uint32_t DMA_Mode; /*!< Specifies the operation mode of the DMAy Channelx.
This parameter can be a value of @ref DMA_circular_normal_mode
@note: The circular buffer mode cannot be used if the memory-to-memory
data transfer is configured on the selected Channel */
uint32_t DMA_Priority; /*!< Specifies the software priority for the DMAy Channelx.
This parameter can be a value of @ref DMA_priority_level */
uint32_t DMA_M2M; /*!< Specifies if the DMAy Channelx will be used in memory-to-memory transfer.
This parameter can be a value of @ref DMA_memory_to_memory */
}DMA_InitTypeDef;
/* Exported constants --------------------------------------------------------*/
/** @defgroup DMA_Exported_Constants
* @{
*/
#define IS_DMA_ALL_PERIPH(PERIPH) (((PERIPH) == DMA1_Channel1) || \
((PERIPH) == DMA1_Channel2) || \
((PERIPH) == DMA1_Channel3) || \
((PERIPH) == DMA1_Channel4) || \
((PERIPH) == DMA1_Channel5) || \
((PERIPH) == DMA1_Channel6) || \
((PERIPH) == DMA1_Channel7))
/** @defgroup DMA_data_transfer_direction
* @{
*/
#define DMA_DIR_PeripheralSRC ((uint32_t)0x00000000)
#define DMA_DIR_PeripheralDST DMA_CCR_DIR
#define IS_DMA_DIR(DIR) (((DIR) == DMA_DIR_PeripheralSRC) || \
((DIR) == DMA_DIR_PeripheralDST))
/**
* @}
*/
/** @defgroup DMA_peripheral_incremented_mode
* @{
*/
#define DMA_PeripheralInc_Disable ((uint32_t)0x00000000)
#define DMA_PeripheralInc_Enable DMA_CCR_PINC
#define IS_DMA_PERIPHERAL_INC_STATE(STATE) (((STATE) == DMA_PeripheralInc_Disable) || \
((STATE) == DMA_PeripheralInc_Enable))
/**
* @}
*/
/** @defgroup DMA_memory_incremented_mode
* @{
*/
#define DMA_MemoryInc_Disable ((uint32_t)0x00000000)
#define DMA_MemoryInc_Enable DMA_CCR_MINC
#define IS_DMA_MEMORY_INC_STATE(STATE) (((STATE) == DMA_MemoryInc_Disable) || \
((STATE) == DMA_MemoryInc_Enable))
/**
* @}
*/
/** @defgroup DMA_peripheral_data_size
* @{
*/
#define DMA_PeripheralDataSize_Byte ((uint32_t)0x00000000)
#define DMA_PeripheralDataSize_HalfWord DMA_CCR_PSIZE_0
#define DMA_PeripheralDataSize_Word DMA_CCR_PSIZE_1
#define IS_DMA_PERIPHERAL_DATA_SIZE(SIZE) (((SIZE) == DMA_PeripheralDataSize_Byte) || \
((SIZE) == DMA_PeripheralDataSize_HalfWord) || \
((SIZE) == DMA_PeripheralDataSize_Word))
/**
* @}
*/
/** @defgroup DMA_memory_data_size
* @{
*/
#define DMA_MemoryDataSize_Byte ((uint32_t)0x00000000)
#define DMA_MemoryDataSize_HalfWord DMA_CCR_MSIZE_0
#define DMA_MemoryDataSize_Word DMA_CCR_MSIZE_1
#define IS_DMA_MEMORY_DATA_SIZE(SIZE) (((SIZE) == DMA_MemoryDataSize_Byte) || \
((SIZE) == DMA_MemoryDataSize_HalfWord) || \
((SIZE) == DMA_MemoryDataSize_Word))
/**
* @}
*/
/** @defgroup DMA_circular_normal_mode
* @{
*/
#define DMA_Mode_Normal ((uint32_t)0x00000000)
#define DMA_Mode_Circular DMA_CCR_CIRC
#define IS_DMA_MODE(MODE) (((MODE) == DMA_Mode_Normal) || ((MODE) == DMA_Mode_Circular))
/**
* @}
*/
/** @defgroup DMA_priority_level
* @{
*/
#define DMA_Priority_VeryHigh DMA_CCR_PL
#define DMA_Priority_High DMA_CCR_PL_1
#define DMA_Priority_Medium DMA_CCR_PL_0
#define DMA_Priority_Low ((uint32_t)0x00000000)
#define IS_DMA_PRIORITY(PRIORITY) (((PRIORITY) == DMA_Priority_VeryHigh) || \
((PRIORITY) == DMA_Priority_High) || \
((PRIORITY) == DMA_Priority_Medium) || \
((PRIORITY) == DMA_Priority_Low))
/**
* @}
*/
/** @defgroup DMA_memory_to_memory
* @{
*/
#define DMA_M2M_Disable ((uint32_t)0x00000000)
#define DMA_M2M_Enable DMA_CCR_MEM2MEM
#define IS_DMA_M2M_STATE(STATE) (((STATE) == DMA_M2M_Disable) || ((STATE) == DMA_M2M_Enable))
/**
* @}
*/
/** @defgroup DMA_interrupts_definition
* @{
*/
#define DMA_IT_TC DMA_CCR_TCIE
#define DMA_IT_HT DMA_CCR_HTIE
#define DMA_IT_TE DMA_CCR_TEIE
#define IS_DMA_CONFIG_IT(IT) ((((IT) & 0xFFFFFFF1) == 0x00) && ((IT) != 0x00))
#define DMA1_IT_GL1 DMA_ISR_GIF1
#define DMA1_IT_TC1 DMA_ISR_TCIF1
#define DMA1_IT_HT1 DMA_ISR_HTIF1
#define DMA1_IT_TE1 DMA_ISR_TEIF1
#define DMA1_IT_GL2 DMA_ISR_GIF2
#define DMA1_IT_TC2 DMA_ISR_TCIF2
#define DMA1_IT_HT2 DMA_ISR_HTIF2
#define DMA1_IT_TE2 DMA_ISR_TEIF2
#define DMA1_IT_GL3 DMA_ISR_GIF3
#define DMA1_IT_TC3 DMA_ISR_TCIF3
#define DMA1_IT_HT3 DMA_ISR_HTIF3
#define DMA1_IT_TE3 DMA_ISR_TEIF3
#define DMA1_IT_GL4 DMA_ISR_GIF4
#define DMA1_IT_TC4 DMA_ISR_TCIF4
#define DMA1_IT_HT4 DMA_ISR_HTIF4
#define DMA1_IT_TE4 DMA_ISR_TEIF4
#define DMA1_IT_GL5 DMA_ISR_GIF5
#define DMA1_IT_TC5 DMA_ISR_TCIF5
#define DMA1_IT_HT5 DMA_ISR_HTIF5
#define DMA1_IT_TE5 DMA_ISR_TEIF5
#define DMA1_IT_GL6 DMA_ISR_GIF6 /*!< Only applicable for STM32F072 devices */
#define DMA1_IT_TC6 DMA_ISR_TCIF6 /*!< Only applicable for STM32F072 devices */
#define DMA1_IT_HT6 DMA_ISR_HTIF6 /*!< Only applicable for STM32F072 devices */
#define DMA1_IT_TE6 DMA_ISR_TEIF6 /*!< Only applicable for STM32F072 devices */
#define DMA1_IT_GL7 DMA_ISR_GIF7 /*!< Only applicable for STM32F072 devices */
#define DMA1_IT_TC7 DMA_ISR_TCIF7 /*!< Only applicable for STM32F072 devices */
#define DMA1_IT_HT7 DMA_ISR_HTIF7 /*!< Only applicable for STM32F072 devices */
#define DMA1_IT_TE7 DMA_ISR_TEIF7 /*!< Only applicable for STM32F072 devices */
#define IS_DMA_CLEAR_IT(IT) ((((IT) & 0xF0000000) == 0x00) && ((IT) != 0x00))
#define IS_DMA_GET_IT(IT) (((IT) == DMA1_IT_GL1) || ((IT) == DMA1_IT_TC1) || \
((IT) == DMA1_IT_HT1) || ((IT) == DMA1_IT_TE1) || \
((IT) == DMA1_IT_GL2) || ((IT) == DMA1_IT_TC2) || \
((IT) == DMA1_IT_HT2) || ((IT) == DMA1_IT_TE2) || \
((IT) == DMA1_IT_GL3) || ((IT) == DMA1_IT_TC3) || \
((IT) == DMA1_IT_HT3) || ((IT) == DMA1_IT_TE3) || \
((IT) == DMA1_IT_GL4) || ((IT) == DMA1_IT_TC4) || \
((IT) == DMA1_IT_HT4) || ((IT) == DMA1_IT_TE4) || \
((IT) == DMA1_IT_GL5) || ((IT) == DMA1_IT_TC5) || \
((IT) == DMA1_IT_HT5) || ((IT) == DMA1_IT_TE5) || \
((IT) == DMA1_IT_GL6) || ((IT) == DMA1_IT_TC6) || \
((IT) == DMA1_IT_HT6) || ((IT) == DMA1_IT_TE6) || \
((IT) == DMA1_IT_GL7) || ((IT) == DMA1_IT_TC7) || \
((IT) == DMA1_IT_HT7) || ((IT) == DMA1_IT_TE7))
/**
* @}
*/
/** @defgroup DMA_flags_definition
* @{
*/
#define DMA1_FLAG_GL1 DMA_ISR_GIF1
#define DMA1_FLAG_TC1 DMA_ISR_TCIF1
#define DMA1_FLAG_HT1 DMA_ISR_HTIF1
#define DMA1_FLAG_TE1 DMA_ISR_TEIF1
#define DMA1_FLAG_GL2 DMA_ISR_GIF2
#define DMA1_FLAG_TC2 DMA_ISR_TCIF2
#define DMA1_FLAG_HT2 DMA_ISR_HTIF2
#define DMA1_FLAG_TE2 DMA_ISR_TEIF2
#define DMA1_FLAG_GL3 DMA_ISR_GIF3
#define DMA1_FLAG_TC3 DMA_ISR_TCIF3
#define DMA1_FLAG_HT3 DMA_ISR_HTIF3
#define DMA1_FLAG_TE3 DMA_ISR_TEIF3
#define DMA1_FLAG_GL4 DMA_ISR_GIF4
#define DMA1_FLAG_TC4 DMA_ISR_TCIF4
#define DMA1_FLAG_HT4 DMA_ISR_HTIF4
#define DMA1_FLAG_TE4 DMA_ISR_TEIF4
#define DMA1_FLAG_GL5 DMA_ISR_GIF5
#define DMA1_FLAG_TC5 DMA_ISR_TCIF5
#define DMA1_FLAG_HT5 DMA_ISR_HTIF5
#define DMA1_FLAG_TE5 DMA_ISR_TEIF5
#define DMA1_FLAG_GL6 DMA_ISR_GIF6 /*!< Only applicable for STM32F072 devices */
#define DMA1_FLAG_TC6 DMA_ISR_TCIF6 /*!< Only applicable for STM32F072 devices */
#define DMA1_FLAG_HT6 DMA_ISR_HTIF6 /*!< Only applicable for STM32F072 devices */
#define DMA1_FLAG_TE6 DMA_ISR_TEIF6 /*!< Only applicable for STM32F072 devices */
#define DMA1_FLAG_GL7 DMA_ISR_GIF7 /*!< Only applicable for STM32F072 devices */
#define DMA1_FLAG_TC7 DMA_ISR_TCIF7 /*!< Only applicable for STM32F072 devices */
#define DMA1_FLAG_HT7 DMA_ISR_HTIF7 /*!< Only applicable for STM32F072 devices */
#define DMA1_FLAG_TE7 DMA_ISR_TEIF7 /*!< Only applicable for STM32F072 devices */
#define IS_DMA_CLEAR_FLAG(FLAG) ((((FLAG) & 0xF0000000) == 0x00) && ((FLAG) != 0x00))
#define IS_DMA_GET_FLAG(FLAG) (((FLAG) == DMA1_FLAG_GL1) || ((FLAG) == DMA1_FLAG_TC1) || \
((FLAG) == DMA1_FLAG_HT1) || ((FLAG) == DMA1_FLAG_TE1) || \
((FLAG) == DMA1_FLAG_GL2) || ((FLAG) == DMA1_FLAG_TC2) || \
((FLAG) == DMA1_FLAG_HT2) || ((FLAG) == DMA1_FLAG_TE2) || \
((FLAG) == DMA1_FLAG_GL3) || ((FLAG) == DMA1_FLAG_TC3) || \
((FLAG) == DMA1_FLAG_HT3) || ((FLAG) == DMA1_FLAG_TE3) || \
((FLAG) == DMA1_FLAG_GL4) || ((FLAG) == DMA1_FLAG_TC4) || \
((FLAG) == DMA1_FLAG_HT4) || ((FLAG) == DMA1_FLAG_TE4) || \
((FLAG) == DMA1_FLAG_GL5) || ((FLAG) == DMA1_FLAG_TC5) || \
((FLAG) == DMA1_FLAG_HT5) || ((FLAG) == DMA1_FLAG_TE5) || \
((FLAG) == DMA1_FLAG_GL6) || ((FLAG) == DMA1_FLAG_TC6) || \
((FLAG) == DMA1_FLAG_HT6) || ((FLAG) == DMA1_FLAG_TE6) || \
((FLAG) == DMA1_FLAG_GL7) || ((FLAG) == DMA1_FLAG_TC7) || \
((FLAG) == DMA1_FLAG_HT7) || ((FLAG) == DMA1_FLAG_TE7))
/**
* @}
*/
/** @defgroup DMA_Buffer_Size
* @{
*/
#define IS_DMA_BUFFER_SIZE(SIZE) (((SIZE) >= 0x1) && ((SIZE) < 0x10000))
/**
* @}
*/
/**
* @}
*/
/* Exported macro ------------------------------------------------------------*/
/* Exported functions ------------------------------------------------------- */
/* Function used to set the DMA configuration to the default reset state ******/
void DMA_DeInit(DMA_Channel_TypeDef* DMAy_Channelx);
/* Initialization and Configuration functions *********************************/
void DMA_Init(DMA_Channel_TypeDef* DMAy_Channelx, DMA_InitTypeDef* DMA_InitStruct);
void DMA_StructInit(DMA_InitTypeDef* DMA_InitStruct);
void DMA_Cmd(DMA_Channel_TypeDef* DMAy_Channelx, FunctionalState NewState);
/* Data Counter functions******************************************************/
void DMA_SetCurrDataCounter(DMA_Channel_TypeDef* DMAy_Channelx, uint16_t DataNumber);
uint16_t DMA_GetCurrDataCounter(DMA_Channel_TypeDef* DMAy_Channelx);
/* Interrupts and flags management functions **********************************/
void DMA_ITConfig(DMA_Channel_TypeDef* DMAy_Channelx, uint32_t DMA_IT, FunctionalState NewState);
FlagStatus DMA_GetFlagStatus(uint32_t DMA_FLAG);
void DMA_ClearFlag(uint32_t DMA_FLAG);
ITStatus DMA_GetITStatus(uint32_t DMA_IT);
void DMA_ClearITPendingBit(uint32_t DMA_IT);
#ifdef __cplusplus
}
#endif
#endif /*__STM32F0XX_DMA_H */
/**
* @}
*/
/**
* @}
*/
/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/

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/**
******************************************************************************
* @file stm32f0xx_exti.c
* @author MCD Application Team
* @version V1.3.0
* @date 16-January-2014
* @brief This file provides firmware functions to manage the following
* functionalities of the EXTI peripheral:
* + Initialization and Configuration
* + Interrupts and flags management
*
* @verbatim
==============================================================================
##### EXTI features #####
==============================================================================
[..] External interrupt/event lines are mapped as following:
(#) All available GPIO pins are connected to the 16 external
interrupt/event lines from EXTI0 to EXTI15.
(#) EXTI line 16 is connected to the PVD output, not applicable for STM32F030 devices.
(#) EXTI line 17 is connected to the RTC Alarm event.
(#) EXTI line 18 is connected to the RTC Alarm event, applicable only for STM32F072 devices.
(#) EXTI line 19 is connected to the RTC Tamper and TimeStamp events.
(#) EXTI line 20 is connected to the RTC wakeup event, applicable only for STM32F072 devices.
(#) EXTI line 21 is connected to the Comparator 1 wakeup event, applicable only for STM32F051 and STM32F072 devices.
(#) EXTI line 22 is connected to the Comparator 2 wakeup event, applicable only for STM32F051 and STM32F072 devices.
(#) EXTI line 23 is connected to the I2C1 wakeup event, not applicable for STM32F030 devices.
(#) EXTI line 25 is connected to the USART1 wakeup event, not applicable for STM32F030 devices.
(#) EXTI line 26 is connected to the USART2 wakeup event, applicable only for STM32F072 devices.
(#) EXTI line 27 is connected to the CEC wakeup event, applicable only for STM32F051 and STM32F072 devices.
(#) EXTI line 31 is connected to the VDD USB monitor event, applicable only for STM32F072 devices.
##### How to use this driver #####
==============================================================================
[..] In order to use an I/O pin as an external interrupt source, follow
steps below:
(#) Configure the I/O in input mode using GPIO_Init()
(#) Select the input source pin for the EXTI line using
SYSCFG_EXTILineConfig().
(#) Select the mode(interrupt, event) and configure the trigger selection
(Rising, falling or both) using EXTI_Init(). For the internal interrupt,
the trigger selection is not needed( the active edge is always the rising one).
(#) Configure NVIC IRQ channel mapped to the EXTI line using NVIC_Init().
(#) Optionally, you can generate a software interrupt using the function EXTI_GenerateSWInterrupt().
[..]
(@) SYSCFG APB clock must be enabled to get write access to SYSCFG_EXTICRx
registers using RCC_APB2PeriphClockCmd(RCC_APB2Periph_SYSCFG, ENABLE);
@endverbatim
*
******************************************************************************
* @attention
*
* <h2><center>&copy; COPYRIGHT(c) 2014 STMicroelectronics</center></h2>
*
* Redistribution and use in source and binary forms, with or without modification,
* are permitted provided that the following conditions are met:
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
* 3. Neither the name of STMicroelectronics nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
******************************************************************************
*/
/* Includes ------------------------------------------------------------------*/
#include "stm32f0xx_exti.h"
/** @addtogroup STM32F0xx_StdPeriph_Driver
* @{
*/
/** @defgroup EXTI
* @brief EXTI driver modules
* @{
*/
/* Private typedef -----------------------------------------------------------*/
/* Private define ------------------------------------------------------------*/
#define EXTI_LINENONE ((uint32_t)0x00000) /* No interrupt selected */
/* Private macro -------------------------------------------------------------*/
/* Private variables ---------------------------------------------------------*/
/* Private function prototypes -----------------------------------------------*/
/* Private functions ---------------------------------------------------------*/
/** @defgroup EXTI_Private_Functions
* @{
*/
/** @defgroup EXTI_Group1 Initialization and Configuration functions
* @brief Initialization and Configuration functions
*
@verbatim
==============================================================================
##### Initialization and Configuration functions #####
==============================================================================
@endverbatim
* @{
*/
/**
* @brief Deinitializes the EXTI peripheral registers to their default reset
* values.
* @param None
* @retval None
*/
void EXTI_DeInit(void)
{
EXTI->IMR = 0x0F940000;
EXTI->EMR = 0x00000000;
EXTI->RTSR = 0x00000000;
EXTI->FTSR = 0x00000000;
EXTI->PR = 0x006BFFFF;
}
/**
* @brief Initializes the EXTI peripheral according to the specified
* parameters in the EXTI_InitStruct.
* @param EXTI_InitStruct: pointer to a EXTI_InitTypeDef structure that
* contains the configuration information for the EXTI peripheral.
* @retval None
*/
void EXTI_Init(EXTI_InitTypeDef* EXTI_InitStruct)
{
uint32_t tmp = 0;
/* Check the parameters */
assert_param(IS_EXTI_MODE(EXTI_InitStruct->EXTI_Mode));
assert_param(IS_EXTI_TRIGGER(EXTI_InitStruct->EXTI_Trigger));
assert_param(IS_EXTI_LINE(EXTI_InitStruct->EXTI_Line));
assert_param(IS_FUNCTIONAL_STATE(EXTI_InitStruct->EXTI_LineCmd));
tmp = (uint32_t)EXTI_BASE;
if (EXTI_InitStruct->EXTI_LineCmd != DISABLE)
{
/* Clear EXTI line configuration */
EXTI->IMR &= ~EXTI_InitStruct->EXTI_Line;
EXTI->EMR &= ~EXTI_InitStruct->EXTI_Line;
tmp += EXTI_InitStruct->EXTI_Mode;
*(__IO uint32_t *) tmp |= EXTI_InitStruct->EXTI_Line;
/* Clear Rising Falling edge configuration */
EXTI->RTSR &= ~EXTI_InitStruct->EXTI_Line;
EXTI->FTSR &= ~EXTI_InitStruct->EXTI_Line;
/* Select the trigger for the selected interrupts */
if (EXTI_InitStruct->EXTI_Trigger == EXTI_Trigger_Rising_Falling)
{
/* Rising Falling edge */
EXTI->RTSR |= EXTI_InitStruct->EXTI_Line;
EXTI->FTSR |= EXTI_InitStruct->EXTI_Line;
}
else
{
tmp = (uint32_t)EXTI_BASE;
tmp += EXTI_InitStruct->EXTI_Trigger;
*(__IO uint32_t *) tmp |= EXTI_InitStruct->EXTI_Line;
}
}
else
{
tmp += EXTI_InitStruct->EXTI_Mode;
/* Disable the selected external lines */
*(__IO uint32_t *) tmp &= ~EXTI_InitStruct->EXTI_Line;
}
}
/**
* @brief Fills each EXTI_InitStruct member with its reset value.
* @param EXTI_InitStruct: pointer to a EXTI_InitTypeDef structure which will
* be initialized.
* @retval None
*/
void EXTI_StructInit(EXTI_InitTypeDef* EXTI_InitStruct)
{
EXTI_InitStruct->EXTI_Line = EXTI_LINENONE;
EXTI_InitStruct->EXTI_Mode = EXTI_Mode_Interrupt;
EXTI_InitStruct->EXTI_Trigger = EXTI_Trigger_Falling;
EXTI_InitStruct->EXTI_LineCmd = DISABLE;
}
/**
* @brief Generates a Software interrupt on selected EXTI line.
* @param EXTI_Line: specifies the EXTI line on which the software interrupt
* will be generated.
* This parameter can be any combination of EXTI_Linex where x can be (0..27).
* @retval None
*/
void EXTI_GenerateSWInterrupt(uint32_t EXTI_Line)
{
/* Check the parameters */
assert_param(IS_EXTI_LINE(EXTI_Line));
EXTI->SWIER |= EXTI_Line;
}
/**
* @}
*/
/** @defgroup EXTI_Group2 Interrupts and flags management functions
* @brief Interrupts and flags management functions
*
@verbatim
==============================================================================
##### Interrupts and flags management functions #####
==============================================================================
@endverbatim
* @{
*/
/**
* @brief Checks whether the specified EXTI line flag is set or not.
* @param EXTI_Line: specifies the EXTI line flag to check.
* This parameter can be EXTI_Linex where x can be (0..27).
* @retval The new state of EXTI_Line (SET or RESET).
*/
FlagStatus EXTI_GetFlagStatus(uint32_t EXTI_Line)
{
FlagStatus bitstatus = RESET;
/* Check the parameters */
assert_param(IS_GET_EXTI_LINE(EXTI_Line));
if ((EXTI->PR & EXTI_Line) != (uint32_t)RESET)
{
bitstatus = SET;
}
else
{
bitstatus = RESET;
}
return bitstatus;
}
/**
* @brief Clears the EXTI's line pending flags.
* @param EXTI_Line: specifies the EXTI lines flags to clear.
* This parameter can be any combination of EXTI_Linex where x can be (0..27).
* @retval None
*/
void EXTI_ClearFlag(uint32_t EXTI_Line)
{
/* Check the parameters */
assert_param(IS_EXTI_LINE(EXTI_Line));
EXTI->PR = EXTI_Line;
}
/**
* @brief Checks whether the specified EXTI line is asserted or not.
* @param EXTI_Line: specifies the EXTI line to check.
* This parameter can be EXTI_Linex where x can be (0..27).
* @retval The new state of EXTI_Line (SET or RESET).
*/
ITStatus EXTI_GetITStatus(uint32_t EXTI_Line)
{
ITStatus bitstatus = RESET;
/* Check the parameters */
assert_param(IS_GET_EXTI_LINE(EXTI_Line));
if ((EXTI->PR & EXTI_Line) != (uint32_t)RESET)
{
bitstatus = SET;
}
else
{
bitstatus = RESET;
}
return bitstatus;
}
/**
* @brief Clears the EXTI's line pending bits.
* @param EXTI_Line: specifies the EXTI lines to clear.
* This parameter can be any combination of EXTI_Linex where x can be (0..27).
* @retval None
*/
void EXTI_ClearITPendingBit(uint32_t EXTI_Line)
{
/* Check the parameters */
assert_param(IS_EXTI_LINE(EXTI_Line));
EXTI->PR = EXTI_Line;
}
/**
* @}
*/
/**
* @}
*/
/**
* @}
*/
/**
* @}
*/
/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/

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/**
******************************************************************************
* @file stm32f0xx_exti.h
* @author MCD Application Team
* @version V1.3.0
* @date 16-January-2014
* @brief This file contains all the functions prototypes for the EXTI
* firmware library
******************************************************************************
* @attention
*
* <h2><center>&copy; COPYRIGHT(c) 2014 STMicroelectronics</center></h2>
*
* Redistribution and use in source and binary forms, with or without modification,
* are permitted provided that the following conditions are met:
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
* 3. Neither the name of STMicroelectronics nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
******************************************************************************
*/
/* Define to prevent recursive inclusion -------------------------------------*/
#ifndef __STM32F0XX_EXTI_H
#define __STM32F0XX_EXTI_H
#ifdef __cplusplus
extern "C" {
#endif
/* Includes ------------------------------------------------------------------*/
#include "stm32f0xx.h"
/** @addtogroup STM32F0xx_StdPeriph_Driver
* @{
*/
/** @addtogroup EXTI
* @{
*/
/* Exported types ------------------------------------------------------------*/
/**
* @brief EXTI mode enumeration
*/
typedef enum
{
EXTI_Mode_Interrupt = 0x00,
EXTI_Mode_Event = 0x04
}EXTIMode_TypeDef;
#define IS_EXTI_MODE(MODE) (((MODE) == EXTI_Mode_Interrupt) || ((MODE) == EXTI_Mode_Event))
/**
* @brief EXTI Trigger enumeration
*/
typedef enum
{
EXTI_Trigger_Rising = 0x08,
EXTI_Trigger_Falling = 0x0C,
EXTI_Trigger_Rising_Falling = 0x10
}EXTITrigger_TypeDef;
#define IS_EXTI_TRIGGER(TRIGGER) (((TRIGGER) == EXTI_Trigger_Rising) || \
((TRIGGER) == EXTI_Trigger_Falling) || \
((TRIGGER) == EXTI_Trigger_Rising_Falling))
/**
* @brief EXTI Init Structure definition
*/
typedef struct
{
uint32_t EXTI_Line; /*!< Specifies the EXTI lines to be enabled or disabled.
This parameter can be any combination of @ref EXTI_Lines */
EXTIMode_TypeDef EXTI_Mode; /*!< Specifies the mode for the EXTI lines.
This parameter can be a value of @ref EXTIMode_TypeDef */
EXTITrigger_TypeDef EXTI_Trigger; /*!< Specifies the trigger signal active edge for the EXTI lines.
This parameter can be a value of @ref EXTIMode_TypeDef */
FunctionalState EXTI_LineCmd; /*!< Specifies the new state of the selected EXTI lines.
This parameter can be set either to ENABLE or DISABLE */
}EXTI_InitTypeDef;
/* Exported constants --------------------------------------------------------*/
/** @defgroup EXTI_Exported_Constants
* @{
*/
/** @defgroup EXTI_Lines
* @{
*/
#define EXTI_Line0 ((uint32_t)0x00000001) /*!< External interrupt line 0 */
#define EXTI_Line1 ((uint32_t)0x00000002) /*!< External interrupt line 1 */
#define EXTI_Line2 ((uint32_t)0x00000004) /*!< External interrupt line 2 */
#define EXTI_Line3 ((uint32_t)0x00000008) /*!< External interrupt line 3 */
#define EXTI_Line4 ((uint32_t)0x00000010) /*!< External interrupt line 4 */
#define EXTI_Line5 ((uint32_t)0x00000020) /*!< External interrupt line 5 */
#define EXTI_Line6 ((uint32_t)0x00000040) /*!< External interrupt line 6 */
#define EXTI_Line7 ((uint32_t)0x00000080) /*!< External interrupt line 7 */
#define EXTI_Line8 ((uint32_t)0x00000100) /*!< External interrupt line 8 */
#define EXTI_Line9 ((uint32_t)0x00000200) /*!< External interrupt line 9 */
#define EXTI_Line10 ((uint32_t)0x00000400) /*!< External interrupt line 10 */
#define EXTI_Line11 ((uint32_t)0x00000800) /*!< External interrupt line 11 */
#define EXTI_Line12 ((uint32_t)0x00001000) /*!< External interrupt line 12 */
#define EXTI_Line13 ((uint32_t)0x00002000) /*!< External interrupt line 13 */
#define EXTI_Line14 ((uint32_t)0x00004000) /*!< External interrupt line 14 */
#define EXTI_Line15 ((uint32_t)0x00008000) /*!< External interrupt line 15 */
#define EXTI_Line16 ((uint32_t)0x00010000) /*!< External interrupt line 16
Connected to the PVD Output,
not applicable for STM32F030 devices */
#define EXTI_Line17 ((uint32_t)0x00020000) /*!< Internal interrupt line 17
Connected to the RTC Alarm
event */
#define EXTI_Line18 ((uint32_t)0x00040000) /*!< Internal interrupt line 18
Connected to the USB
event, only applicable for
STM32F072 devices */
#define EXTI_Line19 ((uint32_t)0x00080000) /*!< Internal interrupt line 19
Connected to the RTC Tamper
and Time Stamp events */
#define EXTI_Line20 ((uint32_t)0x00100000) /*!< Internal interrupt line 20
Connected to the RTC wakeup
event, only applicable for
STM32F072 devices */
#define EXTI_Line21 ((uint32_t)0x00200000) /*!< Internal interrupt line 21
Connected to the Comparator 1
event, only applicable for STM32F051
ans STM32F072 devices */
#define EXTI_Line22 ((uint32_t)0x00400000) /*!< Internal interrupt line 22
Connected to the Comparator 2
event, only applicable for STM32F051
and STM32F072 devices */
#define EXTI_Line23 ((uint32_t)0x00800000) /*!< Internal interrupt line 23
Connected to the I2C1 wakeup
event, not applicable for STM32F030 devices */
#define EXTI_Line25 ((uint32_t)0x02000000) /*!< Internal interrupt line 25
Connected to the USART1 wakeup
event, not applicable for STM32F030 devices */
#define EXTI_Line26 ((uint32_t)0x04000000) /*!< Internal interrupt line 26
Connected to the USART2 wakeup
event, applicable only for
STM32F072 devices */
#define EXTI_Line27 ((uint32_t)0x08000000) /*!< Internal interrupt line 27
Connected to the CEC wakeup
event, applicable only for STM32F051
and STM32F072 devices */
#define EXTI_Line31 ((uint32_t)0x80000000) /*!< Internal interrupt line 31
Connected to the VDD USB monitor
event, applicable only for
STM32F072 devices */
#define IS_EXTI_LINE(LINE) ((((LINE) & (uint32_t)0x71000000) == 0x00) && ((LINE) != (uint16_t)0x00))
#define IS_GET_EXTI_LINE(LINE) (((LINE) == EXTI_Line0) || ((LINE) == EXTI_Line1) || \
((LINE) == EXTI_Line2) || ((LINE) == EXTI_Line3) || \
((LINE) == EXTI_Line4) || ((LINE) == EXTI_Line5) || \
((LINE) == EXTI_Line6) || ((LINE) == EXTI_Line7) || \
((LINE) == EXTI_Line8) || ((LINE) == EXTI_Line9) || \
((LINE) == EXTI_Line10) || ((LINE) == EXTI_Line11) || \
((LINE) == EXTI_Line12) || ((LINE) == EXTI_Line13) || \
((LINE) == EXTI_Line14) || ((LINE) == EXTI_Line15) || \
((LINE) == EXTI_Line16) || ((LINE) == EXTI_Line17) || \
((LINE) == EXTI_Line18) || ((LINE) == EXTI_Line19) || \
((LINE) == EXTI_Line20) || ((LINE) == EXTI_Line21) || \
((LINE) == EXTI_Line22) || ((LINE) == EXTI_Line23) || \
((LINE) == EXTI_Line25) || ((LINE) == EXTI_Line26) || \
((LINE) == EXTI_Line27) || ((LINE) == EXTI_Line31))
/**
* @}
*/
/**
* @}
*/
/* Exported macro ------------------------------------------------------------*/
/* Exported functions ------------------------------------------------------- */
/* Function used to set the EXTI configuration to the default reset state *****/
void EXTI_DeInit(void);
/* Initialization and Configuration functions *********************************/
void EXTI_Init(EXTI_InitTypeDef* EXTI_InitStruct);
void EXTI_StructInit(EXTI_InitTypeDef* EXTI_InitStruct);
void EXTI_GenerateSWInterrupt(uint32_t EXTI_Line);
/* Interrupts and flags management functions **********************************/
FlagStatus EXTI_GetFlagStatus(uint32_t EXTI_Line);
void EXTI_ClearFlag(uint32_t EXTI_Line);
ITStatus EXTI_GetITStatus(uint32_t EXTI_Line);
void EXTI_ClearITPendingBit(uint32_t EXTI_Line);
#ifdef __cplusplus
}
#endif
#endif /* __STM32F0XX_EXTI_H */
/**
* @}
*/
/**
* @}
*/
/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/

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/**
******************************************************************************
* @file stm32f0xx_flash.h
* @author MCD Application Team
* @version V1.3.0
* @date 16-January-2014
* @brief This file contains all the functions prototypes for the FLASH
* firmware library.
******************************************************************************
* @attention
*
* <h2><center>&copy; COPYRIGHT(c) 2014 STMicroelectronics</center></h2>
*
* Redistribution and use in source and binary forms, with or without modification,
* are permitted provided that the following conditions are met:
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
* 3. Neither the name of STMicroelectronics nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
******************************************************************************
*/
/* Define to prevent recursive inclusion -------------------------------------*/
#ifndef __STM32F0XX_FLASH_H
#define __STM32F0XX_FLASH_H
#ifdef __cplusplus
extern "C" {
#endif
/* Includes ------------------------------------------------------------------*/
#include "stm32f0xx.h"
/** @addtogroup STM32F0xx_StdPeriph_Driver
* @{
*/
/** @addtogroup FLASH
* @{
*/
/* Exported types ------------------------------------------------------------*/
/**
* @brief FLASH Status
*/
typedef enum
{
FLASH_BUSY = 1,
FLASH_ERROR_WRP,
FLASH_ERROR_PROGRAM,
FLASH_COMPLETE,
FLASH_TIMEOUT
}FLASH_Status;
/* Exported constants --------------------------------------------------------*/
/** @defgroup FLASH_Exported_Constants
* @{
*/
/** @defgroup FLASH_Latency
* @{
*/
#define FLASH_Latency_0 ((uint32_t)0x00000000) /*!< FLASH Zero Latency cycle */
#define FLASH_Latency_1 FLASH_ACR_LATENCY /*!< FLASH One Latency cycle */
#define IS_FLASH_LATENCY(LATENCY) (((LATENCY) == FLASH_Latency_0) || \
((LATENCY) == FLASH_Latency_1))
/**
* @}
*/
/** @defgroup FLASH_Interrupts
* @{
*/
#define FLASH_IT_EOP FLASH_CR_EOPIE /*!< End of programming interrupt source */
#define FLASH_IT_ERR FLASH_CR_ERRIE /*!< Error interrupt source */
#define IS_FLASH_IT(IT) ((((IT) & (uint32_t)0xFFFFEBFF) == 0x00000000) && (((IT) != 0x00000000)))
/**
* @}
*/
/** @defgroup FLASH_Address
* @{
*/
#ifndef STM32F072
#define IS_FLASH_PROGRAM_ADDRESS(ADDRESS) (((ADDRESS) >= 0x08000000) && ((ADDRESS) <= 0x0800FFFF))
#else
#define IS_FLASH_PROGRAM_ADDRESS(ADDRESS) (((ADDRESS) >= 0x08000000) && ((ADDRESS) <= 0x0801FFFF))
#endif /* STM32F072 */
/**
* @}
*/
/** @defgroup FLASH_OB_DATA_ADDRESS
* @{
*/
#define IS_OB_DATA_ADDRESS(ADDRESS) (((ADDRESS) == 0x1FFFF804) || ((ADDRESS) == 0x1FFFF806))
/**
* @}
*/
/** @defgroup FLASH_Option_Bytes_Write_Protection
* @{
*/
#ifndef STM32F072
#define OB_WRP_Pages0to3 ((uint32_t)0x00000001) /* Write protection of page 0 to 3 */
#define OB_WRP_Pages4to7 ((uint32_t)0x00000002) /* Write protection of page 4 to 7 */
#define OB_WRP_Pages8to11 ((uint32_t)0x00000004) /* Write protection of page 8 to 11 */
#define OB_WRP_Pages12to15 ((uint32_t)0x00000008) /* Write protection of page 12 to 15 */
#define OB_WRP_Pages16to19 ((uint32_t)0x00000010) /* Write protection of page 16 to 19 */
#define OB_WRP_Pages20to23 ((uint32_t)0x00000020) /* Write protection of page 20 to 23 */
#define OB_WRP_Pages24to27 ((uint32_t)0x00000040) /* Write protection of page 24 to 27 */
#define OB_WRP_Pages28to31 ((uint32_t)0x00000080) /* Write protection of page 28 to 31 */
#define OB_WRP_Pages32to35 ((uint32_t)0x00000100) /* Write protection of page 32 to 35 */
#define OB_WRP_Pages36to39 ((uint32_t)0x00000200) /* Write protection of page 36 to 39 */
#define OB_WRP_Pages40to43 ((uint32_t)0x00000400) /* Write protection of page 40 to 43 */
#define OB_WRP_Pages44to47 ((uint32_t)0x00000800) /* Write protection of page 44 to 47 */
#define OB_WRP_Pages48to51 ((uint32_t)0x00001000) /* Write protection of page 48 to 51 */
#define OB_WRP_Pages52to55 ((uint32_t)0x00002000) /* Write protection of page 52 to 55 */
#define OB_WRP_Pages56to59 ((uint32_t)0x00004000) /* Write protection of page 56 to 59 */
#define OB_WRP_Pages60to63 ((uint32_t)0x00008000) /* Write protection of page 60 to 63 */
#define OB_WRP_AllPages ((uint32_t)0x0000FFFF) /*!< Write protection of all Sectors */
#define IS_OB_WRP(PAGE) (((PAGE) != 0x0000000))
#else
#define OB_WRP_Pages0to1 ((uint32_t)0x00000001) /* Write protection of page 0 to 1 */
#define OB_WRP_Pages2to3 ((uint32_t)0x00000002) /* Write protection of page 2 to 3 */
#define OB_WRP_Pages4to5 ((uint32_t)0x00000004) /* Write protection of page 4 to 5 */
#define OB_WRP_Pages6to7 ((uint32_t)0x00000008) /* Write protection of page 6 to 7 */
#define OB_WRP_Pages8to9 ((uint32_t)0x00000010) /* Write protection of page 8 to 9 */
#define OB_WRP_Pages10to11 ((uint32_t)0x00000020) /* Write protection of page 10 to 11 */
#define OB_WRP_Pages12to13 ((uint32_t)0x00000040) /* Write protection of page 12 to 13 */
#define OB_WRP_Pages14to15 ((uint32_t)0x00000080) /* Write protection of page 14 to 15 */
#define OB_WRP_Pages16to17 ((uint32_t)0x00000100) /* Write protection of page 16 to 17 */
#define OB_WRP_Pages18to19 ((uint32_t)0x00000200) /* Write protection of page 18 to 19 */
#define OB_WRP_Pages20to21 ((uint32_t)0x00000400) /* Write protection of page 20 to 21 */
#define OB_WRP_Pages22to23 ((uint32_t)0x00000800) /* Write protection of page 22 to 23 */
#define OB_WRP_Pages24to25 ((uint32_t)0x00001000) /* Write protection of page 24 to 25 */
#define OB_WRP_Pages26to27 ((uint32_t)0x00002000) /* Write protection of page 26 to 27 */
#define OB_WRP_Pages28to29 ((uint32_t)0x00004000) /* Write protection of page 28 to 29 */
#define OB_WRP_Pages30to31 ((uint32_t)0x00008000) /* Write protection of page 30 to 31 */
#define OB_WRP_Pages32to33 ((uint32_t)0x00010000) /* Write protection of page 32 to 33 */
#define OB_WRP_Pages34to35 ((uint32_t)0x00020000) /* Write protection of page 34 to 35 */
#define OB_WRP_Pages36to37 ((uint32_t)0x00040000) /* Write protection of page 36 to 37 */
#define OB_WRP_Pages38to39 ((uint32_t)0x00080000) /* Write protection of page 38 to 39 */
#define OB_WRP_Pages40to41 ((uint32_t)0x00100000) /* Write protection of page 40 to 41 */
#define OB_WRP_Pages42to43 ((uint32_t)0x00200000) /* Write protection of page 42 to 43 */
#define OB_WRP_Pages44to45 ((uint32_t)0x00400000) /* Write protection of page 44 to 45 */
#define OB_WRP_Pages46to47 ((uint32_t)0x00800000) /* Write protection of page 46 to 47 */
#define OB_WRP_Pages48to49 ((uint32_t)0x01000000) /* Write protection of page 48 to 49 */
#define OB_WRP_Pages50to51 ((uint32_t)0x02000000) /* Write protection of page 50 to 51 */
#define OB_WRP_Pages52to53 ((uint32_t)0x04000000) /* Write protection of page 52 to 53 */
#define OB_WRP_Pages54to55 ((uint32_t)0x08000000) /* Write protection of page 54 to 55 */
#define OB_WRP_Pages56to57 ((uint32_t)0x10000000) /* Write protection of page 56 to 57 */
#define OB_WRP_Pages58to59 ((uint32_t)0x20000000) /* Write protection of page 58 to 59 */
#define OB_WRP_Pages60to61 ((uint32_t)0x40000000) /* Write protection of page 60 to 61 */
#define OB_WRP_Pages62to63 ((uint32_t)0x80000000) /* Write protection of page 62 to 63 */
#define OB_WRP_AllPages ((uint32_t)0xFFFFFFFF) /*!< Write protection of all Sectors */
#define IS_OB_WRP(PAGE) (((PAGE) != 0x0000000))
#endif /* STM32F072 */
/**
* @}
*/
/** @defgroup FLASH_Option_Bytes_Read_Protection
* @{
*/
/**
* @brief FLASH_Read Protection Level
*/
#define OB_RDP_Level_0 ((uint8_t)0xAA)
#define OB_RDP_Level_1 ((uint8_t)0xBB)
/*#define OB_RDP_Level_2 ((uint8_t)0xCC)*/ /* Warning: When enabling read protection level 2
it's no more possible to go back to level 1 or 0 */
#define IS_OB_RDP(LEVEL) (((LEVEL) == OB_RDP_Level_0)||\
((LEVEL) == OB_RDP_Level_1))/*||\
((LEVEL) == OB_RDP_Level_2))*/
/**
* @}
*/
/** @defgroup FLASH_Option_Bytes_IWatchdog
* @{
*/
#define OB_IWDG_SW ((uint8_t)0x01) /*!< Software IWDG selected */
#define OB_IWDG_HW ((uint8_t)0x00) /*!< Hardware IWDG selected */
#define IS_OB_IWDG_SOURCE(SOURCE) (((SOURCE) == OB_IWDG_SW) || ((SOURCE) == OB_IWDG_HW))
/**
* @}
*/
/** @defgroup FLASH_Option_Bytes_nRST_STOP
* @{
*/
#define OB_STOP_NoRST ((uint8_t)0x02) /*!< No reset generated when entering in STOP */
#define OB_STOP_RST ((uint8_t)0x00) /*!< Reset generated when entering in STOP */
#define IS_OB_STOP_SOURCE(SOURCE) (((SOURCE) == OB_STOP_NoRST) || ((SOURCE) == OB_STOP_RST))
/**
* @}
*/
/** @defgroup FLASH_Option_Bytes_nRST_STDBY
* @{
*/
#define OB_STDBY_NoRST ((uint8_t)0x04) /*!< No reset generated when entering in STANDBY */
#define OB_STDBY_RST ((uint8_t)0x00) /*!< Reset generated when entering in STANDBY */
#define IS_OB_STDBY_SOURCE(SOURCE) (((SOURCE) == OB_STDBY_NoRST) || ((SOURCE) == OB_STDBY_RST))
/**
* @}
*/
/** @defgroup FLASH_Option_Bytes_BOOT1
* @{
*/
#define OB_BOOT1_RESET ((uint8_t)0x00) /*!< BOOT1 Reset */
#define OB_BOOT1_SET ((uint8_t)0x10) /*!< BOOT1 Set */
#define IS_OB_BOOT1(BOOT1) (((BOOT1) == OB_BOOT1_RESET) || ((BOOT1) == OB_BOOT1_SET))
/**
* @}
*/
/** @defgroup FLASH_Option_Bytes_BOOT0
* @{
*/
#define OB_BOOT0_RESET ((uint8_t)0x00) /*!< BOOT0 Reset */
#define OB_BOOT0_SET ((uint8_t)0x08) /*!< BOOT0 Set */
#define IS_OB_BOOT0(BOOT0) (((BOOT0) == OB_BOOT0_RESET) || ((BOOT0) == OB_BOOT0_SET))
/**
* @}
*/
/** @defgroup FLASH_Option_Bytes_BOOT0SW
* @{
*/
#define OB_BOOT0_SW ((uint8_t)0x00) /*!< BOOT0 pin disabled */
#define OB_BOOT0_HW ((uint8_t)0x80) /*!< BOOT0 pin bonded with GPIO */
#define IS_OB_BOOT0SW(BOOT0) (((BOOT0) == OB_BOOT0_SW) || ((BOOT0) == OB_BOOT0_HW))
/**
* @}
*/
/** @defgroup FLASH_Option_Bytes_VDDA_Analog_Monitoring
* @{
*/
#define OB_VDDA_ANALOG_ON ((uint8_t)0x20) /*!< Analog monitoring on VDDA Power source ON */
#define OB_VDDA_ANALOG_OFF ((uint8_t)0x00) /*!< Analog monitoring on VDDA Power source OFF */
#define IS_OB_VDDA_ANALOG(ANALOG) (((ANALOG) == OB_VDDA_ANALOG_ON) || ((ANALOG) == OB_VDDA_ANALOG_OFF))
/**
* @}
*/
/** @defgroup FLASH_Option_Bytes_SRAM_Parity_Enable
* @{
*/
#define OB_SRAM_PARITY_SET ((uint8_t)0x00) /*!< SRAM parity enable Set */
#define OB_SRAM_PARITY_RESET ((uint8_t)0x40) /*!< SRAM parity enable reset */
#define IS_OB_SRAM_PARITY(PARITY) (((PARITY) == OB_SRAM_PARITY_SET) || ((PARITY) == OB_SRAM_PARITY_RESET))
/**
* @}
*/
/** @defgroup FLASH_Flags
* @{
*/
#define FLASH_FLAG_BSY FLASH_SR_BSY /*!< FLASH Busy flag */
#define FLASH_FLAG_PGERR FLASH_SR_PGERR /*!< FLASH Programming error flag */
#define FLASH_FLAG_WRPERR FLASH_SR_WRPERR /*!< FLASH Write protected error flag */
#define FLASH_FLAG_EOP FLASH_SR_EOP /*!< FLASH End of Programming flag */
#define IS_FLASH_CLEAR_FLAG(FLAG) ((((FLAG) & (uint32_t)0xFFFFFFCB) == 0x00000000) && ((FLAG) != 0x00000000))
#define IS_FLASH_GET_FLAG(FLAG) (((FLAG) == FLASH_FLAG_BSY) || ((FLAG) == FLASH_FLAG_PGERR) || \
((FLAG) == FLASH_FLAG_WRPERR) || ((FLAG) == FLASH_FLAG_EOP))
/**
* @}
*/
/** @defgroup FLASH_Timeout_definition
* @{
*/
#define FLASH_ER_PRG_TIMEOUT ((uint32_t)0x000B0000)
/**
* @}
*/
/** @defgroup FLASH_Legacy
* @{
*/
#define FLASH_WRProt_Pages0to3 OB_WRP_Pages0to3
#define FLASH_WRProt_Pages4to7 OB_WRP_Pages4to7
#define FLASH_WRProt_Pages8to11 OB_WRP_Pages8to11
#define FLASH_WRProt_Pages12to15 OB_WRP_Pages12to15
#define FLASH_WRProt_Pages16to19 OB_WRP_Pages16to19
#define FLASH_WRProt_Pages20to23 OB_WRP_Pages20to23
#define FLASH_WRProt_Pages24to27 OB_WRP_Pages24to27
#define FLASH_WRProt_Pages28to31 OB_WRP_Pages28to31
#define FLASH_WRProt_Pages32to35 OB_WRP_Pages32to35
#define FLASH_WRProt_Pages36to39 OB_WRP_Pages36to39
#define FLASH_WRProt_Pages40to43 OB_WRP_Pages40to21
#define FLASH_WRProt_Pages44to47 OB_WRP_Pages44to23
#define FLASH_WRProt_Pages48to51 OB_WRP_Pages48to51
#define FLASH_WRProt_Pages52to55 OB_WRP_Pages52to55
#define FLASH_WRProt_Pages56to59 OB_WRP_Pages56to59
#define FLASH_WRProt_Pages60to63 OB_WRP_Pages60to63
#define FLASH_WRProt_AllPages OB_WRP_AllPages
/**
* @}
*/
/**
* @}
*/
/* Exported macro ------------------------------------------------------------*/
/* Exported functions ------------------------------------------------------- */
/**
* @brief FLASH memory functions that can be executed from FLASH.
*/
/* FLASH Interface configuration functions ************************************/
void FLASH_SetLatency(uint32_t FLASH_Latency);
void FLASH_PrefetchBufferCmd(FunctionalState NewState);
FlagStatus FLASH_GetPrefetchBufferStatus(void);
/* FLASH Memory Programming functions *****************************************/
void FLASH_Unlock(void);
void FLASH_Lock(void);
FLASH_Status FLASH_ErasePage(uint32_t Page_Address);
FLASH_Status FLASH_EraseAllPages(void);
FLASH_Status FLASH_ProgramWord(uint32_t Address, uint32_t Data);
FLASH_Status FLASH_ProgramHalfWord(uint32_t Address, uint16_t Data);
/* FLASH Option Bytes Programming functions *****************************************/
void FLASH_OB_Unlock(void);
void FLASH_OB_Lock(void);
void FLASH_OB_Launch(void);
FLASH_Status FLASH_OB_Erase(void);
FLASH_Status FLASH_OB_EnableWRP(uint32_t OB_WRP);
FLASH_Status FLASH_OB_RDPConfig(uint8_t OB_RDP);
FLASH_Status FLASH_OB_UserConfig(uint8_t OB_IWDG, uint8_t OB_STOP, uint8_t OB_STDBY);
FLASH_Status FLASH_OB_BOOTConfig(uint8_t OB_BOOT1);
FLASH_Status FLASH_OB_BOOT0Config(uint8_t OB_BOOT0);
FLASH_Status FLASH_OB_BOOT0SWConfig(uint8_t OB_BOOT0SW);
FLASH_Status FLASH_OB_VDDAConfig(uint8_t OB_VDDA_ANALOG);
FLASH_Status FLASH_OB_SRAMParityConfig(uint8_t OB_SRAM_Parity);
FLASH_Status FLASH_OB_WriteUser(uint8_t OB_USER);
FLASH_Status FLASH_OB_ProgramData(uint32_t Address, uint8_t Data);
uint8_t FLASH_OB_GetUser(void);
uint32_t FLASH_OB_GetWRP(void);
FlagStatus FLASH_OB_GetRDP(void);
/* FLASH Interrupts and flags management functions **********************************/
void FLASH_ITConfig(uint32_t FLASH_IT, FunctionalState NewState);
FlagStatus FLASH_GetFlagStatus(uint32_t FLASH_FLAG);
void FLASH_ClearFlag(uint32_t FLASH_FLAG);
FLASH_Status FLASH_GetStatus(void);
FLASH_Status FLASH_WaitForLastOperation(uint32_t Timeout);
/** @defgroup FLASH_Legacy
* @{
*/
#define FLASH_EraseOptionBytes FLASH_OB_Erase
#define FLASH_EnableWriteProtection FLASH_OB_EnableWRP
#define FLASH_UserOptionByteConfig FLASH_OB_UserConfig
#define FLASH_ProgramOptionByteData FLASH_OB_ProgramData
#define FLASH_GetUserOptionByte FLASH_OB_GetUser
#define FLASH_GetWriteProtectionOptionByte FLASH_OB_GetWRP
/**
* @}
*/
#ifdef __cplusplus
}
#endif
#endif /* __STM32F0XX_FLASH_H */
/**
* @}
*/
/**
* @}
*/
/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/

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/**
******************************************************************************
* @file stm32f0xx_gpio.c
* @author MCD Application Team
* @version V1.3.0
* @date 16-January-2014
* @brief This file provides firmware functions to manage the following
* functionalities of the GPIO peripheral:
* + Initialization and Configuration functions
* + GPIO Read and Write functions
* + GPIO Alternate functions configuration functions
*
* @verbatim
*
*
===========================================================================
##### How to use this driver #####
===========================================================================
[..]
(#) Enable the GPIO AHB clock using RCC_AHBPeriphClockCmd()
(#) Configure the GPIO pin(s) using GPIO_Init()
Four possible configuration are available for each pin:
(++) Input: Floating, Pull-up, Pull-down.
(++) Output: Push-Pull (Pull-up, Pull-down or no Pull)
Open Drain (Pull-up, Pull-down or no Pull).
In output mode, the speed is configurable: Low, Medium, Fast or High.
(++) Alternate Function: Push-Pull (Pull-up, Pull-down or no Pull)
Open Drain (Pull-up, Pull-down or no Pull).
(++) Analog: required mode when a pin is to be used as ADC channel,
DAC output or comparator input.
(#) Peripherals alternate function:
(++) For ADC, DAC and comparators, configure the desired pin in analog
mode using GPIO_InitStruct->GPIO_Mode = GPIO_Mode_AN
(++) For other peripherals (TIM, USART...):
(+++) Connect the pin to the desired peripherals' Alternate
Function (AF) using GPIO_PinAFConfig() function. For PortC,
PortD and PortF, no configuration is needed.
(+++) Configure the desired pin in alternate function mode using
GPIO_InitStruct->GPIO_Mode = GPIO_Mode_AF
(+++) Select the type, pull-up/pull-down and output speed via
GPIO_PuPd, GPIO_OType and GPIO_Speed members
(+++) Call GPIO_Init() function
(#) To get the level of a pin configured in input mode use GPIO_ReadInputDataBit()
(#) To set/reset the level of a pin configured in output mode use
GPIO_SetBits()/GPIO_ResetBits()
(#) During and just after reset, the alternate functions are not active and
the GPIO pins are configured in input floating mode (except JTAG pins).
(#) The LSE oscillator pins OSC32_IN and OSC32_OUT can be used as
general-purpose (PC14 and PC15, respectively) when the LSE oscillator
is off. The LSE has priority over the GPIO function.
(#) The HSE oscillator pins OSC_IN/OSC_OUT can be used as general-purpose
PD0 and PD1, respectively, when the HSE oscillator is off. The HSE has
priority over the GPIO function.
@endverbatim
******************************************************************************
* @attention
*
* <h2><center>&copy; COPYRIGHT(c) 2014 STMicroelectronics</center></h2>
*
* Redistribution and use in source and binary forms, with or without modification,
* are permitted provided that the following conditions are met:
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
* 3. Neither the name of STMicroelectronics nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
******************************************************************************
*/
/* Includes ------------------------------------------------------------------*/
#include "stm32f0xx_gpio.h"
#include "stm32f0xx_rcc.h"
/** @addtogroup STM32F0xx_StdPeriph_Driver
* @{
*/
/** @defgroup GPIO
* @brief GPIO driver modules
* @{
*/
/* Private typedef -----------------------------------------------------------*/
/* Private define ------------------------------------------------------------*/
/* Private macro -------------------------------------------------------------*/
/* Private variables ---------------------------------------------------------*/
/* Private function prototypes -----------------------------------------------*/
/* Private functions ---------------------------------------------------------*/
/** @defgroup GPIO_Private_Functions
* @{
*/
/** @defgroup GPIO_Group1 Initialization and Configuration
* @brief Initialization and Configuration
*
@verbatim
===============================================================================
##### Initialization and Configuration #####
===============================================================================
@endverbatim
* @{
*/
/**
* @brief Deinitializes the GPIOx peripheral registers to their default reset
* values.
* @param GPIOx: where x can be (A, B, C, D, E or F) to select the GPIO peripheral.
* @note GPIOE is available only for STM32F072.
* @note GPIOD is not available for STM32F031.
* @retval None
*/
void GPIO_DeInit(GPIO_TypeDef* GPIOx)
{
/* Check the parameters */
assert_param(IS_GPIO_ALL_PERIPH(GPIOx));
if(GPIOx == GPIOA)
{
RCC_AHBPeriphResetCmd(RCC_AHBPeriph_GPIOA, ENABLE);
RCC_AHBPeriphResetCmd(RCC_AHBPeriph_GPIOA, DISABLE);
}
else if(GPIOx == GPIOB)
{
RCC_AHBPeriphResetCmd(RCC_AHBPeriph_GPIOB, ENABLE);
RCC_AHBPeriphResetCmd(RCC_AHBPeriph_GPIOB, DISABLE);
}
else if(GPIOx == GPIOC)
{
RCC_AHBPeriphResetCmd(RCC_AHBPeriph_GPIOC, ENABLE);
RCC_AHBPeriphResetCmd(RCC_AHBPeriph_GPIOC, DISABLE);
}
else if(GPIOx == GPIOD)
{
RCC_AHBPeriphResetCmd(RCC_AHBPeriph_GPIOD, ENABLE);
RCC_AHBPeriphResetCmd(RCC_AHBPeriph_GPIOD, DISABLE);
}
else if(GPIOx == GPIOE)
{
RCC_AHBPeriphResetCmd(RCC_AHBPeriph_GPIOE, ENABLE);
RCC_AHBPeriphResetCmd(RCC_AHBPeriph_GPIOE, DISABLE);
}
else
{
if(GPIOx == GPIOF)
{
RCC_AHBPeriphResetCmd(RCC_AHBPeriph_GPIOF, ENABLE);
RCC_AHBPeriphResetCmd(RCC_AHBPeriph_GPIOF, DISABLE);
}
}
}
/**
* @brief Initializes the GPIOx peripheral according to the specified
* parameters in the GPIO_InitStruct.
* @param GPIOx: where x can be (A, B, C, D, E or F) to select the GPIO peripheral.
* @note GPIOE is available only for STM32F072.
* @note GPIOD is not available for STM32F031.
* @param GPIO_InitStruct: pointer to a GPIO_InitTypeDef structure that contains
* the configuration information for the specified GPIO peripheral.
* @retval None
*/
void GPIO_Init(GPIO_TypeDef* GPIOx, GPIO_InitTypeDef* GPIO_InitStruct)
{
uint32_t pinpos = 0x00, pos = 0x00 , currentpin = 0x00;
/* Check the parameters */
assert_param(IS_GPIO_ALL_PERIPH(GPIOx));
assert_param(IS_GPIO_PIN(GPIO_InitStruct->GPIO_Pin));
assert_param(IS_GPIO_MODE(GPIO_InitStruct->GPIO_Mode));
assert_param(IS_GPIO_PUPD(GPIO_InitStruct->GPIO_PuPd));
/*-------------------------- Configure the port pins -----------------------*/
/*-- GPIO Mode Configuration --*/
for (pinpos = 0x00; pinpos < 0x10; pinpos++)
{
pos = ((uint32_t)0x01) << pinpos;
/* Get the port pins position */
currentpin = (GPIO_InitStruct->GPIO_Pin) & pos;
if (currentpin == pos)
{
if ((GPIO_InitStruct->GPIO_Mode == GPIO_Mode_OUT) || (GPIO_InitStruct->GPIO_Mode == GPIO_Mode_AF))
{
/* Check Speed mode parameters */
assert_param(IS_GPIO_SPEED(GPIO_InitStruct->GPIO_Speed));
/* Speed mode configuration */
GPIOx->OSPEEDR &= ~(GPIO_OSPEEDER_OSPEEDR0 << (pinpos * 2));
GPIOx->OSPEEDR |= ((uint32_t)(GPIO_InitStruct->GPIO_Speed) << (pinpos * 2));
/* Check Output mode parameters */
assert_param(IS_GPIO_OTYPE(GPIO_InitStruct->GPIO_OType));
/* Output mode configuration */
GPIOx->OTYPER &= ~((GPIO_OTYPER_OT_0) << ((uint16_t)pinpos));
GPIOx->OTYPER |= (uint16_t)(((uint16_t)GPIO_InitStruct->GPIO_OType) << ((uint16_t)pinpos));
}
GPIOx->MODER &= ~(GPIO_MODER_MODER0 << (pinpos * 2));
GPIOx->MODER |= (((uint32_t)GPIO_InitStruct->GPIO_Mode) << (pinpos * 2));
/* Pull-up Pull down resistor configuration */
GPIOx->PUPDR &= ~(GPIO_PUPDR_PUPDR0 << ((uint16_t)pinpos * 2));
GPIOx->PUPDR |= (((uint32_t)GPIO_InitStruct->GPIO_PuPd) << (pinpos * 2));
}
}
}
/**
* @brief Fills each GPIO_InitStruct member with its default value.
* @param GPIO_InitStruct: pointer to a GPIO_InitTypeDef structure which will
* be initialized.
* @retval None
*/
void GPIO_StructInit(GPIO_InitTypeDef* GPIO_InitStruct)
{
/* Reset GPIO init structure parameters values */
GPIO_InitStruct->GPIO_Pin = GPIO_Pin_All;
GPIO_InitStruct->GPIO_Mode = GPIO_Mode_IN;
GPIO_InitStruct->GPIO_Speed = GPIO_Speed_Level_2;
GPIO_InitStruct->GPIO_OType = GPIO_OType_PP;
GPIO_InitStruct->GPIO_PuPd = GPIO_PuPd_NOPULL;
}
/**
* @brief Locks GPIO Pins configuration registers.
* @note The locked registers are GPIOx_MODER, GPIOx_OTYPER, GPIOx_OSPEEDR,
* GPIOx_PUPDR, GPIOx_AFRL and GPIOx_AFRH.
* @note The configuration of the locked GPIO pins can no longer be modified
* until the next device reset.
* @param GPIOx: where x can be (A or B) to select the GPIO peripheral.
* @param GPIO_Pin: specifies the port bit to be written.
* This parameter can be any combination of GPIO_Pin_x where x can be (0..15).
* @retval None
*/
void GPIO_PinLockConfig(GPIO_TypeDef* GPIOx, uint16_t GPIO_Pin)
{
__IO uint32_t tmp = 0x00010000;
/* Check the parameters */
assert_param(IS_GPIO_LIST_PERIPH(GPIOx));
assert_param(IS_GPIO_PIN(GPIO_Pin));
tmp |= GPIO_Pin;
/* Set LCKK bit */
GPIOx->LCKR = tmp;
/* Reset LCKK bit */
GPIOx->LCKR = GPIO_Pin;
/* Set LCKK bit */
GPIOx->LCKR = tmp;
/* Read LCKK bit */
tmp = GPIOx->LCKR;
/* Read LCKK bit */
tmp = GPIOx->LCKR;
}
/**
* @}
*/
/** @defgroup GPIO_Group2 GPIO Read and Write
* @brief GPIO Read and Write
*
@verbatim
===============================================================================
##### GPIO Read and Write #####
===============================================================================
@endverbatim
* @{
*/
/**
* @brief Reads the specified input port pin.
* @param GPIOx: where x can be (A, B, C, D, E or F) to select the GPIO peripheral.
* @note GPIOE is available only for STM32F072.
* @note GPIOD is not available for STM32F031.
* @param GPIO_Pin: specifies the port bit to read.
* @note This parameter can be GPIO_Pin_x where x can be:
* For STM32F051 and STM32F030: (0..15) for GPIOA, GPIOB, GPIOC, (2) for GPIOD and (0..1, 4..7) for GIIOF.
* For STM32F072: (0..15) for GPIOA, GPIOB, GPIOC, GPIOD, GPIOE, (0..10) for GPIOF.
* For STM32F031: (0..15) for GPIOA, GPIOB, (13..15) for GPIOC and (0..1, 6..7) for GPIOF.
* @retval The input port pin value.
*/
uint8_t GPIO_ReadInputDataBit(GPIO_TypeDef* GPIOx, uint16_t GPIO_Pin)
{
uint8_t bitstatus = 0x00;
/* Check the parameters */
assert_param(IS_GPIO_ALL_PERIPH(GPIOx));
assert_param(IS_GET_GPIO_PIN(GPIO_Pin));
if ((GPIOx->IDR & GPIO_Pin) != (uint32_t)Bit_RESET)
{
bitstatus = (uint8_t)Bit_SET;
}
else
{
bitstatus = (uint8_t)Bit_RESET;
}
return bitstatus;
}
/**
* @brief Reads the specified input port pin.
* @param GPIOx: where x can be (A, B, C, D, E or F) to select the GPIO peripheral.
* @note GPIOE is available only for STM32F072.
* @note GPIOD is not available for STM32F031.
* @retval The input port pin value.
*/
uint16_t GPIO_ReadInputData(GPIO_TypeDef* GPIOx)
{
/* Check the parameters */
assert_param(IS_GPIO_ALL_PERIPH(GPIOx));
return ((uint16_t)GPIOx->IDR);
}
/**
* @brief Reads the specified output data port bit.
* @param GPIOx: where x can be (A, B, C, D, E or F) to select the GPIO peripheral.
* @note GPIOE is available only for STM32F072.
* @note GPIOD is not available for STM32F031.
* @param GPIO_Pin: Specifies the port bit to read.
* @note This parameter can be GPIO_Pin_x where x can be:
* For STM32F051 and STM32F030: (0..15) for GPIOA, GPIOB, GPIOC, (2) for GPIOD and (0..1, 4..7) for GIIOF.
* For STM32F072: (0..15) for GPIOA, GPIOB, GPIOC, GPIOD, GPIOE, (0..10) for GPIOF.
* For STM32F031: (0..15) for GPIOA, GPIOB, (13..15) for GPIOC and (0..1, 6..7) for GPIOF.
* @retval The output port pin value.
*/
uint8_t GPIO_ReadOutputDataBit(GPIO_TypeDef* GPIOx, uint16_t GPIO_Pin)
{
uint8_t bitstatus = 0x00;
/* Check the parameters */
assert_param(IS_GPIO_ALL_PERIPH(GPIOx));
assert_param(IS_GET_GPIO_PIN(GPIO_Pin));
if ((GPIOx->ODR & GPIO_Pin) != (uint32_t)Bit_RESET)
{
bitstatus = (uint8_t)Bit_SET;
}
else
{
bitstatus = (uint8_t)Bit_RESET;
}
return bitstatus;
}
/**
* @brief Reads the specified GPIO output data port.
* @param GPIOx: where x can be (A, B, C, D, E or F) to select the GPIO peripheral.
* @note GPIOE is available only for STM32F072.
* @note GPIOD is not available for STM32F031.
* @retval GPIO output data port value.
*/
uint16_t GPIO_ReadOutputData(GPIO_TypeDef* GPIOx)
{
/* Check the parameters */
assert_param(IS_GPIO_ALL_PERIPH(GPIOx));
return ((uint16_t)GPIOx->ODR);
}
/**
* @brief Sets the selected data port bits.
* @param GPIOx: where x can be (A, B, C, D, E or F) to select the GPIO peripheral.
* @note GPIOE is available only for STM32F072.
* @note GPIOD is not available for STM32F031.
* @param GPIO_Pin: specifies the port bits to be written.
* @note This parameter can be GPIO_Pin_x where x can be:
* For STM32F051 and STM32F030: (0..15) for GPIOA, GPIOB, GPIOC, (2) for GPIOD and (0..1, 4..7) for GIIOF.
* For STM32F072: (0..15) for GPIOA, GPIOB, GPIOC, GPIOD, GPIOE, (0..10) for GPIOF.
* For STM32F031: (0..15) for GPIOA, GPIOB, (13..15) for GPIOC and (0..1, 6..7) for GPIOF.
* @retval None
*/
void GPIO_SetBits(GPIO_TypeDef* GPIOx, uint16_t GPIO_Pin)
{
/* Check the parameters */
assert_param(IS_GPIO_ALL_PERIPH(GPIOx));
assert_param(IS_GPIO_PIN(GPIO_Pin));
GPIOx->BSRR = GPIO_Pin;
}
/**
* @brief Clears the selected data port bits.
* @param GPIOx: where x can be (A, B, C, D, E or F) to select the GPIO peripheral.
* @note GPIOE is available only for STM32F072.
* @note GPIOD is not available for STM32F031.
* @param GPIO_Pin: specifies the port bits to be written.
* @note This parameter can be GPIO_Pin_x where x can be:
* For STM32F051 and STM32F030: (0..15) for GPIOA, GPIOB, GPIOC, (2) for GPIOD and (0..1, 4..7) for GIIOF.
* For STM32F072: (0..15) for GPIOA, GPIOB, GPIOC, GPIOD, GPIOE, (0..10) for GPIOF.
* For STM32F031: (0..15) for GPIOA, GPIOB, (13..15) for GPIOC and (0..1, 6..7) for GPIOF.
* @retval None
*/
void GPIO_ResetBits(GPIO_TypeDef* GPIOx, uint16_t GPIO_Pin)
{
/* Check the parameters */
assert_param(IS_GPIO_ALL_PERIPH(GPIOx));
assert_param(IS_GPIO_PIN(GPIO_Pin));
GPIOx->BRR = GPIO_Pin;
}
/**
* @brief Sets or clears the selected data port bit.
* @param GPIOx: where x can be (A, B, C, D, E or F) to select the GPIO peripheral.
* @note GPIOE is available only for STM32F072.
* @note GPIOD is not available for STM32F031.
* @param GPIO_Pin: specifies the port bit to be written.
* @param BitVal: specifies the value to be written to the selected bit.
* This parameter can be one of the BitAction enumeration values:
* @arg Bit_RESET: to clear the port pin
* @arg Bit_SET: to set the port pin
* @note This parameter can be GPIO_Pin_x where x can be:
* For STM32F051 and STM32F030: (0..15) for GPIOA, GPIOB, GPIOC, (2) for GPIOD and (0..1, 4..7) for GIIOF.
* For STM32F072: (0..15) for GPIOA, GPIOB, GPIOC, GPIOD, GPIOE, (0..10) for GPIOF.
* For STM32F031: (0..15) for GPIOA, GPIOB, (13..15) for GPIOC and (0..1, 6..7) for GPIOF.
* @retval None
*/
void GPIO_WriteBit(GPIO_TypeDef* GPIOx, uint16_t GPIO_Pin, BitAction BitVal)
{
/* Check the parameters */
assert_param(IS_GPIO_ALL_PERIPH(GPIOx));
assert_param(IS_GET_GPIO_PIN(GPIO_Pin));
assert_param(IS_GPIO_BIT_ACTION(BitVal));
if (BitVal != Bit_RESET)
{
GPIOx->BSRR = GPIO_Pin;
}
else
{
GPIOx->BRR = GPIO_Pin ;
}
}
/**
* @brief Writes data to the specified GPIO data port.
* @param GPIOx: where x can be (A, B, C, D, E or F) to select the GPIO peripheral.
* @note GPIOE is available only for STM32F072.
* @note GPIOD is not available for STM32F031.
* @param PortVal: specifies the value to be written to the port output data register.
* @retval None
*/
void GPIO_Write(GPIO_TypeDef* GPIOx, uint16_t PortVal)
{
/* Check the parameters */
assert_param(IS_GPIO_ALL_PERIPH(GPIOx));
GPIOx->ODR = PortVal;
}
/**
* @}
*/
/** @defgroup GPIO_Group3 GPIO Alternate functions configuration functions
* @brief GPIO Alternate functions configuration functions
*
@verbatim
===============================================================================
##### GPIO Alternate functions configuration functions #####
===============================================================================
@endverbatim
* @{
*/
/**
* @brief Writes data to the specified GPIO data port.
* @param GPIOx: where x can be (A, B, C, D, E or F) to select the GPIO peripheral.
* @note GPIOC, GPIOD, GPIOE and GPIOF are available only for STM32F072.
* @param GPIO_PinSource: specifies the pin for the Alternate function.
* This parameter can be GPIO_PinSourcex where x can be (0..15) for GPIOA, GPIOB, GPIOD, GPIOE
* and (0..12) for GPIOC and (0, 2..5, 9..10) for GPIOF.
* @param GPIO_AF: selects the pin to used as Alternate function.
* This parameter can be one of the following value:
* @arg GPIO_AF_0: WKUP, EVENTOUT, TIM15, SPI1, TIM17, MCO, SWDAT, SWCLK,
* TIM14, BOOT, USART1, CEC, IR_OUT, SPI2, TIM3, USART4,
* CAN, USART2, CRS, TIM16, TIM1, TS
* @arg GPIO_AF_1: USART2, CEC, TIM3, USART1, USART2, EVENTOUT, I2C1,
* I2C2, TIM15, SPI2, USART3, TS, SPI1
* @arg GPIO_AF_2: TIM2, TIM1, EVENTOUT, TIM16, TIM17, USB
* @arg GPIO_AF_3: TS, I2C1, TIM15, EVENTOUT
* @arg GPIO_AF_4: TIM14, USART4, USART3, CRS, CAN
* @arg GPIO_AF_5: TIM16, TIM17, TIM15, SPI2, I2C2
* @arg GPIO_AF_6: EVENTOUT
* @arg GPIO_AF_7: COMP1 OUT, COMP2 OUT
* @note The pin should already been configured in Alternate Function mode(AF)
* using GPIO_InitStruct->GPIO_Mode = GPIO_Mode_AF
* @note Refer to the Alternate function mapping table in the device datasheet
* for the detailed mapping of the system and peripherals'alternate
* function I/O pins.
* @retval None
*/
void GPIO_PinAFConfig(GPIO_TypeDef* GPIOx, uint16_t GPIO_PinSource, uint8_t GPIO_AF)
{
uint32_t temp = 0x00;
uint32_t temp_2 = 0x00;
/* Check the parameters */
assert_param(IS_GPIO_ALL_PERIPH(GPIOx));
assert_param(IS_GPIO_PIN_SOURCE(GPIO_PinSource));
assert_param(IS_GPIO_AF(GPIO_AF));
temp = ((uint32_t)(GPIO_AF) << ((uint32_t)((uint32_t)GPIO_PinSource & (uint32_t)0x07) * 4));
GPIOx->AFR[GPIO_PinSource >> 0x03] &= ~((uint32_t)0xF << ((uint32_t)((uint32_t)GPIO_PinSource & (uint32_t)0x07) * 4));
temp_2 = GPIOx->AFR[GPIO_PinSource >> 0x03] | temp;
GPIOx->AFR[GPIO_PinSource >> 0x03] = temp_2;
}
/**
* @}
*/
/**
* @}
*/
/**
* @}
*/
/**
* @}
*/
/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/

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/**
******************************************************************************
* @file stm32f0xx_gpio.h
* @author MCD Application Team
* @version V1.3.0
* @date 16-January-2014
* @brief This file contains all the functions prototypes for the GPIO
* firmware library.
******************************************************************************
* @attention
*
* <h2><center>&copy; COPYRIGHT(c) 2014 STMicroelectronics</center></h2>
*
* Redistribution and use in source and binary forms, with or without modification,
* are permitted provided that the following conditions are met:
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
* 3. Neither the name of STMicroelectronics nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
******************************************************************************
*/
/* Define to prevent recursive inclusion -------------------------------------*/
#ifndef __STM32F0XX_GPIO_H
#define __STM32F0XX_GPIO_H
#ifdef __cplusplus
extern "C" {
#endif
/* Includes ------------------------------------------------------------------*/
#include "stm32f0xx.h"
/** @addtogroup STM32F0xx_StdPeriph_Driver
* @{
*/
/** @addtogroup GPIO
* @{
*/
/* Exported types ------------------------------------------------------------*/
#define IS_GPIO_ALL_PERIPH(PERIPH) (((PERIPH) == GPIOA) || \
((PERIPH) == GPIOB) || \
((PERIPH) == GPIOC) || \
((PERIPH) == GPIOD) || \
((PERIPH) == GPIOE) || \
((PERIPH) == GPIOF))
#define IS_GPIO_LIST_PERIPH(PERIPH) (((PERIPH) == GPIOA) || \
((PERIPH) == GPIOB))
/** @defgroup Configuration_Mode_enumeration
* @{
*/
typedef enum
{
GPIO_Mode_IN = 0x00, /*!< GPIO Input Mode */
GPIO_Mode_OUT = 0x01, /*!< GPIO Output Mode */
GPIO_Mode_AF = 0x02, /*!< GPIO Alternate function Mode */
GPIO_Mode_AN = 0x03 /*!< GPIO Analog In/Out Mode */
}GPIOMode_TypeDef;
#define IS_GPIO_MODE(MODE) (((MODE) == GPIO_Mode_IN)|| ((MODE) == GPIO_Mode_OUT) || \
((MODE) == GPIO_Mode_AF)|| ((MODE) == GPIO_Mode_AN))
/**
* @}
*/
/** @defgroup Output_type_enumeration
* @{
*/
typedef enum
{
GPIO_OType_PP = 0x00,
GPIO_OType_OD = 0x01
}GPIOOType_TypeDef;
#define IS_GPIO_OTYPE(OTYPE) (((OTYPE) == GPIO_OType_PP) || ((OTYPE) == GPIO_OType_OD))
/**
* @}
*/
/** @defgroup Output_Maximum_frequency_enumeration
* @{
*/
typedef enum
{
GPIO_Speed_Level_1 = 0x00, /*!< I/O output speed: Low 2 MHz */
GPIO_Speed_Level_2 = 0x01, /*!< I/O output speed: Medium 10 MHz */
GPIO_Speed_Level_3 = 0x03 /*!< I/O output speed: High 50 MHz */
}GPIOSpeed_TypeDef;
#define IS_GPIO_SPEED(SPEED) (((SPEED) == GPIO_Speed_Level_1) || ((SPEED) == GPIO_Speed_Level_2) || \
((SPEED) == GPIO_Speed_Level_3))
/**
* @}
*/
/** @defgroup Configuration_Pull-Up_Pull-Down_enumeration
* @{
*/
typedef enum
{
GPIO_PuPd_NOPULL = 0x00,
GPIO_PuPd_UP = 0x01,
GPIO_PuPd_DOWN = 0x02
}GPIOPuPd_TypeDef;
#define IS_GPIO_PUPD(PUPD) (((PUPD) == GPIO_PuPd_NOPULL) || ((PUPD) == GPIO_PuPd_UP) || \
((PUPD) == GPIO_PuPd_DOWN))
/**
* @}
*/
/** @defgroup Bit_SET_and_Bit_RESET_enumeration
* @{
*/
typedef enum
{
Bit_RESET = 0,
Bit_SET
}BitAction;
#define IS_GPIO_BIT_ACTION(ACTION) (((ACTION) == Bit_RESET) || ((ACTION) == Bit_SET))
/**
* @}
*/
/**
* @brief GPIO Init structure definition
*/
typedef struct
{
uint32_t GPIO_Pin; /*!< Specifies the GPIO pins to be configured.
This parameter can be any value of @ref GPIO_pins_define */
GPIOMode_TypeDef GPIO_Mode; /*!< Specifies the operating mode for the selected pins.
This parameter can be a value of @ref GPIOMode_TypeDef */
GPIOSpeed_TypeDef GPIO_Speed; /*!< Specifies the speed for the selected pins.
This parameter can be a value of @ref GPIOSpeed_TypeDef */
GPIOOType_TypeDef GPIO_OType; /*!< Specifies the operating output type for the selected pins.
This parameter can be a value of @ref GPIOOType_TypeDef */
GPIOPuPd_TypeDef GPIO_PuPd; /*!< Specifies the operating Pull-up/Pull down for the selected pins.
This parameter can be a value of @ref GPIOPuPd_TypeDef */
}GPIO_InitTypeDef;
/* Exported constants --------------------------------------------------------*/
/** @defgroup GPIO_Exported_Constants
* @{
*/
/** @defgroup GPIO_pins_define
* @{
*/
#define GPIO_Pin_0 ((uint16_t)0x0001) /*!< Pin 0 selected */
#define GPIO_Pin_1 ((uint16_t)0x0002) /*!< Pin 1 selected */
#define GPIO_Pin_2 ((uint16_t)0x0004) /*!< Pin 2 selected */
#define GPIO_Pin_3 ((uint16_t)0x0008) /*!< Pin 3 selected */
#define GPIO_Pin_4 ((uint16_t)0x0010) /*!< Pin 4 selected */
#define GPIO_Pin_5 ((uint16_t)0x0020) /*!< Pin 5 selected */
#define GPIO_Pin_6 ((uint16_t)0x0040) /*!< Pin 6 selected */
#define GPIO_Pin_7 ((uint16_t)0x0080) /*!< Pin 7 selected */
#define GPIO_Pin_8 ((uint16_t)0x0100) /*!< Pin 8 selected */
#define GPIO_Pin_9 ((uint16_t)0x0200) /*!< Pin 9 selected */
#define GPIO_Pin_10 ((uint16_t)0x0400) /*!< Pin 10 selected */
#define GPIO_Pin_11 ((uint16_t)0x0800) /*!< Pin 11 selected */
#define GPIO_Pin_12 ((uint16_t)0x1000) /*!< Pin 12 selected */
#define GPIO_Pin_13 ((uint16_t)0x2000) /*!< Pin 13 selected */
#define GPIO_Pin_14 ((uint16_t)0x4000) /*!< Pin 14 selected */
#define GPIO_Pin_15 ((uint16_t)0x8000) /*!< Pin 15 selected */
#define GPIO_Pin_All ((uint16_t)0xFFFF) /*!< All pins selected */
#define IS_GPIO_PIN(PIN) ((PIN) != (uint16_t)0x00)
#define IS_GET_GPIO_PIN(PIN) (((PIN) == GPIO_Pin_0) || \
((PIN) == GPIO_Pin_1) || \
((PIN) == GPIO_Pin_2) || \
((PIN) == GPIO_Pin_3) || \
((PIN) == GPIO_Pin_4) || \
((PIN) == GPIO_Pin_5) || \
((PIN) == GPIO_Pin_6) || \
((PIN) == GPIO_Pin_7) || \
((PIN) == GPIO_Pin_8) || \
((PIN) == GPIO_Pin_9) || \
((PIN) == GPIO_Pin_10) || \
((PIN) == GPIO_Pin_11) || \
((PIN) == GPIO_Pin_12) || \
((PIN) == GPIO_Pin_13) || \
((PIN) == GPIO_Pin_14) || \
((PIN) == GPIO_Pin_15))
/**
* @}
*/
/** @defgroup GPIO_Pin_sources
* @{
*/
#define GPIO_PinSource0 ((uint8_t)0x00)
#define GPIO_PinSource1 ((uint8_t)0x01)
#define GPIO_PinSource2 ((uint8_t)0x02)
#define GPIO_PinSource3 ((uint8_t)0x03)
#define GPIO_PinSource4 ((uint8_t)0x04)
#define GPIO_PinSource5 ((uint8_t)0x05)
#define GPIO_PinSource6 ((uint8_t)0x06)
#define GPIO_PinSource7 ((uint8_t)0x07)
#define GPIO_PinSource8 ((uint8_t)0x08)
#define GPIO_PinSource9 ((uint8_t)0x09)
#define GPIO_PinSource10 ((uint8_t)0x0A)
#define GPIO_PinSource11 ((uint8_t)0x0B)
#define GPIO_PinSource12 ((uint8_t)0x0C)
#define GPIO_PinSource13 ((uint8_t)0x0D)
#define GPIO_PinSource14 ((uint8_t)0x0E)
#define GPIO_PinSource15 ((uint8_t)0x0F)
#define IS_GPIO_PIN_SOURCE(PINSOURCE) (((PINSOURCE) == GPIO_PinSource0) || \
((PINSOURCE) == GPIO_PinSource1) || \
((PINSOURCE) == GPIO_PinSource2) || \
((PINSOURCE) == GPIO_PinSource3) || \
((PINSOURCE) == GPIO_PinSource4) || \
((PINSOURCE) == GPIO_PinSource5) || \
((PINSOURCE) == GPIO_PinSource6) || \
((PINSOURCE) == GPIO_PinSource7) || \
((PINSOURCE) == GPIO_PinSource8) || \
((PINSOURCE) == GPIO_PinSource9) || \
((PINSOURCE) == GPIO_PinSource10) || \
((PINSOURCE) == GPIO_PinSource11) || \
((PINSOURCE) == GPIO_PinSource12) || \
((PINSOURCE) == GPIO_PinSource13) || \
((PINSOURCE) == GPIO_PinSource14) || \
((PINSOURCE) == GPIO_PinSource15))
/**
* @}
*/
/** @defgroup GPIO_Alternate_function_selection_define
* @{
*/
/**
* @brief AF 0 selection
*/
#define GPIO_AF_0 ((uint8_t)0x00) /* WKUP, EVENTOUT, TIM15, SPI1, TIM17,
MCO, SWDAT, SWCLK, TIM14, BOOT,
USART1, CEC, IR_OUT, SPI2, TS, TIM3,
USART4, CAN, TIM3, USART2, USART3,
CRS, TIM16, TIM1 */
/**
* @brief AF 1 selection
*/
#define GPIO_AF_1 ((uint8_t)0x01) /* USART2, CEC, TIM3, USART1, IR,
EVENTOUT, I2C1, I2C2, TIM15, SPI2,
USART3, TS, SPI1 */
/**
* @brief AF 2 selection
*/
#define GPIO_AF_2 ((uint8_t)0x02) /* TIM2, TIM1, EVENTOUT, TIM16, TIM17,
USB */
/**
* @brief AF 3 selection
*/
#define GPIO_AF_3 ((uint8_t)0x03) /* TS, I2C1, TIM15, EVENTOUT */
/**
* @brief AF 4 selection
*/
#define GPIO_AF_4 ((uint8_t)0x04) /* TIM14, USART4, USART3, CRS, CAN,
I2C1 */
/**
* @brief AF 5 selection
*/
#define GPIO_AF_5 ((uint8_t)0x05) /* TIM16, TIM17, TIM15, SPI2, I2C2,
MCO, I2C1, USB */
/**
* @brief AF 6 selection
*/
#define GPIO_AF_6 ((uint8_t)0x06) /* EVENTOUT */
/**
* @brief AF 7 selection
*/
#define GPIO_AF_7 ((uint8_t)0x07) /* COMP1 OUT and COMP2 OUT */
#define IS_GPIO_AF(AF) (((AF) == GPIO_AF_0) || ((AF) == GPIO_AF_1) || \
((AF) == GPIO_AF_2) || ((AF) == GPIO_AF_3) || \
((AF) == GPIO_AF_4) || ((AF) == GPIO_AF_5) || \
((AF) == GPIO_AF_6) || ((AF) == GPIO_AF_7))
/**
* @}
*/
/** @defgroup GPIO_Speed_Legacy
* @{
*/
#define GPIO_Speed_2MHz GPIO_Speed_Level_1 /*!< I/O output speed: Low 2 MHz */
#define GPIO_Speed_10MHz GPIO_Speed_Level_2 /*!< I/O output speed: Medium 10 MHz */
#define GPIO_Speed_50MHz GPIO_Speed_Level_3 /*!< I/O output speed: High 50 MHz */
/**
* @}
*/
/**
* @}
*/
/* Exported macro ------------------------------------------------------------*/
/* Exported functions ------------------------------------------------------- */
/* Function used to set the GPIO configuration to the default reset state *****/
void GPIO_DeInit(GPIO_TypeDef* GPIOx);
/* Initialization and Configuration functions *********************************/
void GPIO_Init(GPIO_TypeDef* GPIOx, GPIO_InitTypeDef* GPIO_InitStruct);
void GPIO_StructInit(GPIO_InitTypeDef* GPIO_InitStruct);
void GPIO_PinLockConfig(GPIO_TypeDef* GPIOx, uint16_t GPIO_Pin);
/* GPIO Read and Write functions **********************************************/
uint8_t GPIO_ReadInputDataBit(GPIO_TypeDef* GPIOx, uint16_t GPIO_Pin);
uint16_t GPIO_ReadInputData(GPIO_TypeDef* GPIOx);
uint8_t GPIO_ReadOutputDataBit(GPIO_TypeDef* GPIOx, uint16_t GPIO_Pin);
uint16_t GPIO_ReadOutputData(GPIO_TypeDef* GPIOx);
void GPIO_SetBits(GPIO_TypeDef* GPIOx, uint16_t GPIO_Pin);
void GPIO_ResetBits(GPIO_TypeDef* GPIOx, uint16_t GPIO_Pin);
void GPIO_WriteBit(GPIO_TypeDef* GPIOx, uint16_t GPIO_Pin, BitAction BitVal);
void GPIO_Write(GPIO_TypeDef* GPIOx, uint16_t PortVal);
/* GPIO Alternate functions configuration functions ***************************/
void GPIO_PinAFConfig(GPIO_TypeDef* GPIOx, uint16_t GPIO_PinSource, uint8_t GPIO_AF);
#ifdef __cplusplus
}
#endif
#endif /* __STM32F0XX_GPIO_H */
/**
* @}
*/
/**
* @}
*/
/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/

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/**
******************************************************************************
* @file stm32f0xx_i2c.h
* @author MCD Application Team
* @version V1.3.0
* @date 16-January-2014
* @brief This file contains all the functions prototypes for the I2C firmware
* library
******************************************************************************
* @attention
*
* <h2><center>&copy; COPYRIGHT(c) 2014 STMicroelectronics</center></h2>
*
* Redistribution and use in source and binary forms, with or without modification,
* are permitted provided that the following conditions are met:
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
* 3. Neither the name of STMicroelectronics nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
******************************************************************************
*/
/* Define to prevent recursive inclusion -------------------------------------*/
#ifndef __STM32F0XX_I2C_H
#define __STM32F0XX_I2C_H
#ifdef __cplusplus
extern "C" {
#endif
/* Includes ------------------------------------------------------------------*/
#include "stm32f0xx.h"
/** @addtogroup STM32F0xx_StdPeriph_Driver
* @{
*/
/** @addtogroup I2C
* @{
*/
/* Exported types ------------------------------------------------------------*/
/**
* @brief I2C Init structure definition
*/
typedef struct
{
uint32_t I2C_Timing; /*!< Specifies the I2C_TIMINGR_register value.
This parameter must be set by referring to I2C_Timing_Config_Tool*/
uint32_t I2C_AnalogFilter; /*!< Enables or disables analog noise filter.
This parameter can be a value of @ref I2C_Analog_Filter*/
uint32_t I2C_DigitalFilter; /*!< Configures the digital noise filter.
This parameter can be a number between 0x00 and 0x0F*/
uint32_t I2C_Mode; /*!< Specifies the I2C mode.
This parameter can be a value of @ref I2C_mode*/
uint32_t I2C_OwnAddress1; /*!< Specifies the device own address 1.
This parameter can be a 7-bit or 10-bit address*/
uint32_t I2C_Ack; /*!< Enables or disables the acknowledgement.
This parameter can be a value of @ref I2C_acknowledgement*/
uint32_t I2C_AcknowledgedAddress; /*!< Specifies if 7-bit or 10-bit address is acknowledged.
This parameter can be a value of @ref I2C_acknowledged_address*/
}I2C_InitTypeDef;
/* Exported constants --------------------------------------------------------*/
/** @defgroup I2C_Exported_Constants
* @{
*/
#define IS_I2C_ALL_PERIPH(PERIPH) (((PERIPH) == I2C1) || \
((PERIPH) == I2C2))
#define IS_I2C_1_PERIPH(PERIPH) ((PERIPH) == I2C1)
/** @defgroup I2C_Analog_Filter
* @{
*/
#define I2C_AnalogFilter_Enable ((uint32_t)0x00000000)
#define I2C_AnalogFilter_Disable I2C_CR1_ANFOFF
#define IS_I2C_ANALOG_FILTER(FILTER) (((FILTER) == I2C_AnalogFilter_Enable) || \
((FILTER) == I2C_AnalogFilter_Disable))
/**
* @}
*/
/** @defgroup I2C_Digital_Filter
* @{
*/
#define IS_I2C_DIGITAL_FILTER(FILTER) ((FILTER) <= 0x0000000F)
/**
* @}
*/
/** @defgroup I2C_mode
* @{
*/
#define I2C_Mode_I2C ((uint32_t)0x00000000)
#define I2C_Mode_SMBusDevice I2C_CR1_SMBDEN
#define I2C_Mode_SMBusHost I2C_CR1_SMBHEN
#define IS_I2C_MODE(MODE) (((MODE) == I2C_Mode_I2C) || \
((MODE) == I2C_Mode_SMBusDevice) || \
((MODE) == I2C_Mode_SMBusHost))
/**
* @}
*/
/** @defgroup I2C_acknowledgement
* @{
*/
#define I2C_Ack_Enable ((uint32_t)0x00000000)
#define I2C_Ack_Disable I2C_CR2_NACK
#define IS_I2C_ACK(ACK) (((ACK) == I2C_Ack_Enable) || \
((ACK) == I2C_Ack_Disable))
/**
* @}
*/
/** @defgroup I2C_acknowledged_address
* @{
*/
#define I2C_AcknowledgedAddress_7bit ((uint32_t)0x00000000)
#define I2C_AcknowledgedAddress_10bit I2C_OAR1_OA1MODE
#define IS_I2C_ACKNOWLEDGE_ADDRESS(ADDRESS) (((ADDRESS) == I2C_AcknowledgedAddress_7bit) || \
((ADDRESS) == I2C_AcknowledgedAddress_10bit))
/**
* @}
*/
/** @defgroup I2C_own_address1
* @{
*/
#define IS_I2C_OWN_ADDRESS1(ADDRESS1) ((ADDRESS1) <= (uint32_t)0x000003FF)
/**
* @}
*/
/** @defgroup I2C_transfer_direction
* @{
*/
#define I2C_Direction_Transmitter ((uint16_t)0x0000)
#define I2C_Direction_Receiver ((uint16_t)0x0400)
#define IS_I2C_DIRECTION(DIRECTION) (((DIRECTION) == I2C_Direction_Transmitter) || \
((DIRECTION) == I2C_Direction_Receiver))
/**
* @}
*/
/** @defgroup I2C_DMA_transfer_requests
* @{
*/
#define I2C_DMAReq_Tx I2C_CR1_TXDMAEN
#define I2C_DMAReq_Rx I2C_CR1_RXDMAEN
#define IS_I2C_DMA_REQ(REQ) ((((REQ) & (uint32_t)0xFFFF3FFF) == 0x00) && ((REQ) != 0x00))
/**
* @}
*/
/** @defgroup I2C_slave_address
* @{
*/
#define IS_I2C_SLAVE_ADDRESS(ADDRESS) ((ADDRESS) <= (uint16_t)0x03FF)
/**
* @}
*/
/** @defgroup I2C_own_address2
* @{
*/
#define IS_I2C_OWN_ADDRESS2(ADDRESS2) ((ADDRESS2) <= (uint16_t)0x00FF)
/**
* @}
*/
/** @defgroup I2C_own_address2_mask
* @{
*/
#define I2C_OA2_NoMask ((uint8_t)0x00)
#define I2C_OA2_Mask01 ((uint8_t)0x01)
#define I2C_OA2_Mask02 ((uint8_t)0x02)
#define I2C_OA2_Mask03 ((uint8_t)0x03)
#define I2C_OA2_Mask04 ((uint8_t)0x04)
#define I2C_OA2_Mask05 ((uint8_t)0x05)
#define I2C_OA2_Mask06 ((uint8_t)0x06)
#define I2C_OA2_Mask07 ((uint8_t)0x07)
#define IS_I2C_OWN_ADDRESS2_MASK(MASK) (((MASK) == I2C_OA2_NoMask) || \
((MASK) == I2C_OA2_Mask01) || \
((MASK) == I2C_OA2_Mask02) || \
((MASK) == I2C_OA2_Mask03) || \
((MASK) == I2C_OA2_Mask04) || \
((MASK) == I2C_OA2_Mask05) || \
((MASK) == I2C_OA2_Mask06) || \
((MASK) == I2C_OA2_Mask07))
/**
* @}
*/
/** @defgroup I2C_timeout
* @{
*/
#define IS_I2C_TIMEOUT(TIMEOUT) ((TIMEOUT) <= (uint16_t)0x0FFF)
/**
* @}
*/
/** @defgroup I2C_registers
* @{
*/
#define I2C_Register_CR1 ((uint8_t)0x00)
#define I2C_Register_CR2 ((uint8_t)0x04)
#define I2C_Register_OAR1 ((uint8_t)0x08)
#define I2C_Register_OAR2 ((uint8_t)0x0C)
#define I2C_Register_TIMINGR ((uint8_t)0x10)
#define I2C_Register_TIMEOUTR ((uint8_t)0x14)
#define I2C_Register_ISR ((uint8_t)0x18)
#define I2C_Register_ICR ((uint8_t)0x1C)
#define I2C_Register_PECR ((uint8_t)0x20)
#define I2C_Register_RXDR ((uint8_t)0x24)
#define I2C_Register_TXDR ((uint8_t)0x28)
#define IS_I2C_REGISTER(REGISTER) (((REGISTER) == I2C_Register_CR1) || \
((REGISTER) == I2C_Register_CR2) || \
((REGISTER) == I2C_Register_OAR1) || \
((REGISTER) == I2C_Register_OAR2) || \
((REGISTER) == I2C_Register_TIMINGR) || \
((REGISTER) == I2C_Register_TIMEOUTR) || \
((REGISTER) == I2C_Register_ISR) || \
((REGISTER) == I2C_Register_ICR) || \
((REGISTER) == I2C_Register_PECR) || \
((REGISTER) == I2C_Register_RXDR) || \
((REGISTER) == I2C_Register_TXDR))
/**
* @}
*/
/** @defgroup I2C_interrupts_definition
* @{
*/
#define I2C_IT_ERRI I2C_CR1_ERRIE
#define I2C_IT_TCI I2C_CR1_TCIE
#define I2C_IT_STOPI I2C_CR1_STOPIE
#define I2C_IT_NACKI I2C_CR1_NACKIE
#define I2C_IT_ADDRI I2C_CR1_ADDRIE
#define I2C_IT_RXI I2C_CR1_RXIE
#define I2C_IT_TXI I2C_CR1_TXIE
#define IS_I2C_CONFIG_IT(IT) ((((IT) & (uint32_t)0xFFFFFF01) == 0x00) && ((IT) != 0x00))
/**
* @}
*/
/** @defgroup I2C_flags_definition
* @{
*/
#define I2C_FLAG_TXE I2C_ISR_TXE
#define I2C_FLAG_TXIS I2C_ISR_TXIS
#define I2C_FLAG_RXNE I2C_ISR_RXNE
#define I2C_FLAG_ADDR I2C_ISR_ADDR
#define I2C_FLAG_NACKF I2C_ISR_NACKF
#define I2C_FLAG_STOPF I2C_ISR_STOPF
#define I2C_FLAG_TC I2C_ISR_TC
#define I2C_FLAG_TCR I2C_ISR_TCR
#define I2C_FLAG_BERR I2C_ISR_BERR
#define I2C_FLAG_ARLO I2C_ISR_ARLO
#define I2C_FLAG_OVR I2C_ISR_OVR
#define I2C_FLAG_PECERR I2C_ISR_PECERR
#define I2C_FLAG_TIMEOUT I2C_ISR_TIMEOUT
#define I2C_FLAG_ALERT I2C_ISR_ALERT
#define I2C_FLAG_BUSY I2C_ISR_BUSY
#define IS_I2C_CLEAR_FLAG(FLAG) ((((FLAG) & (uint32_t)0xFFFF4000) == 0x00) && ((FLAG) != 0x00))
#define IS_I2C_GET_FLAG(FLAG) (((FLAG) == I2C_FLAG_TXE) || ((FLAG) == I2C_FLAG_TXIS) || \
((FLAG) == I2C_FLAG_RXNE) || ((FLAG) == I2C_FLAG_ADDR) || \
((FLAG) == I2C_FLAG_NACKF) || ((FLAG) == I2C_FLAG_STOPF) || \
((FLAG) == I2C_FLAG_TC) || ((FLAG) == I2C_FLAG_TCR) || \
((FLAG) == I2C_FLAG_BERR) || ((FLAG) == I2C_FLAG_ARLO) || \
((FLAG) == I2C_FLAG_OVR) || ((FLAG) == I2C_FLAG_PECERR) || \
((FLAG) == I2C_FLAG_TIMEOUT) || ((FLAG) == I2C_FLAG_ALERT) || \
((FLAG) == I2C_FLAG_BUSY))
/**
* @}
*/
/** @defgroup I2C_interrupts_definition
* @{
*/
#define I2C_IT_TXIS I2C_ISR_TXIS
#define I2C_IT_RXNE I2C_ISR_RXNE
#define I2C_IT_ADDR I2C_ISR_ADDR
#define I2C_IT_NACKF I2C_ISR_NACKF
#define I2C_IT_STOPF I2C_ISR_STOPF
#define I2C_IT_TC I2C_ISR_TC
#define I2C_IT_TCR I2C_ISR_TCR
#define I2C_IT_BERR I2C_ISR_BERR
#define I2C_IT_ARLO I2C_ISR_ARLO
#define I2C_IT_OVR I2C_ISR_OVR
#define I2C_IT_PECERR I2C_ISR_PECERR
#define I2C_IT_TIMEOUT I2C_ISR_TIMEOUT
#define I2C_IT_ALERT I2C_ISR_ALERT
#define IS_I2C_CLEAR_IT(IT) ((((IT) & (uint32_t)0xFFFFC001) == 0x00) && ((IT) != 0x00))
#define IS_I2C_GET_IT(IT) (((IT) == I2C_IT_TXIS) || ((IT) == I2C_IT_RXNE) || \
((IT) == I2C_IT_ADDR) || ((IT) == I2C_IT_NACKF) || \
((IT) == I2C_IT_STOPF) || ((IT) == I2C_IT_TC) || \
((IT) == I2C_IT_TCR) || ((IT) == I2C_IT_BERR) || \
((IT) == I2C_IT_ARLO) || ((IT) == I2C_IT_OVR) || \
((IT) == I2C_IT_PECERR) || ((IT) == I2C_IT_TIMEOUT) || \
((IT) == I2C_IT_ALERT))
/**
* @}
*/
/** @defgroup I2C_ReloadEndMode_definition
* @{
*/
#define I2C_Reload_Mode I2C_CR2_RELOAD
#define I2C_AutoEnd_Mode I2C_CR2_AUTOEND
#define I2C_SoftEnd_Mode ((uint32_t)0x00000000)
#define IS_RELOAD_END_MODE(MODE) (((MODE) == I2C_Reload_Mode) || \
((MODE) == I2C_AutoEnd_Mode) || \
((MODE) == I2C_SoftEnd_Mode))
/**
* @}
*/
/** @defgroup I2C_StartStopMode_definition
* @{
*/
#define I2C_No_StartStop ((uint32_t)0x00000000)
#define I2C_Generate_Stop I2C_CR2_STOP
#define I2C_Generate_Start_Read (uint32_t)(I2C_CR2_START | I2C_CR2_RD_WRN)
#define I2C_Generate_Start_Write I2C_CR2_START
#define IS_START_STOP_MODE(MODE) (((MODE) == I2C_Generate_Stop) || \
((MODE) == I2C_Generate_Start_Read) || \
((MODE) == I2C_Generate_Start_Write) || \
((MODE) == I2C_No_StartStop))
/**
* @}
*/
/**
* @}
*/
/* Exported macro ------------------------------------------------------------*/
/* Exported functions ------------------------------------------------------- */
/* Initialization and Configuration functions *********************************/
void I2C_DeInit(I2C_TypeDef* I2Cx);
void I2C_Init(I2C_TypeDef* I2Cx, I2C_InitTypeDef* I2C_InitStruct);
void I2C_StructInit(I2C_InitTypeDef* I2C_InitStruct);
void I2C_Cmd(I2C_TypeDef* I2Cx, FunctionalState NewState);
void I2C_SoftwareResetCmd(I2C_TypeDef* I2Cx);
void I2C_ITConfig(I2C_TypeDef* I2Cx, uint32_t I2C_IT, FunctionalState NewState);
void I2C_StretchClockCmd(I2C_TypeDef* I2Cx, FunctionalState NewState);
void I2C_StopModeCmd(I2C_TypeDef* I2Cx, FunctionalState NewState); /*!< not applicable for STM32F030 devices */
void I2C_DualAddressCmd(I2C_TypeDef* I2Cx, FunctionalState NewState);
void I2C_OwnAddress2Config(I2C_TypeDef* I2Cx, uint16_t Address, uint8_t Mask);
void I2C_GeneralCallCmd(I2C_TypeDef* I2Cx, FunctionalState NewState);
void I2C_SlaveByteControlCmd(I2C_TypeDef* I2Cx, FunctionalState NewState);
void I2C_SlaveAddressConfig(I2C_TypeDef* I2Cx, uint16_t Address);
void I2C_10BitAddressingModeCmd(I2C_TypeDef* I2Cx, FunctionalState NewState);
/* Communications handling functions ******************************************/
void I2C_AutoEndCmd(I2C_TypeDef* I2Cx, FunctionalState NewState);
void I2C_ReloadCmd(I2C_TypeDef* I2Cx, FunctionalState NewState);
void I2C_NumberOfBytesConfig(I2C_TypeDef* I2Cx, uint8_t Number_Bytes);
void I2C_MasterRequestConfig(I2C_TypeDef* I2Cx, uint16_t I2C_Direction);
void I2C_GenerateSTART(I2C_TypeDef* I2Cx, FunctionalState NewState);
void I2C_GenerateSTOP(I2C_TypeDef* I2Cx, FunctionalState NewState);
void I2C_10BitAddressHeaderCmd(I2C_TypeDef* I2Cx, FunctionalState NewState);
void I2C_AcknowledgeConfig(I2C_TypeDef* I2Cx, FunctionalState NewState);
uint8_t I2C_GetAddressMatched(I2C_TypeDef* I2Cx);
uint16_t I2C_GetTransferDirection(I2C_TypeDef* I2Cx);
void I2C_TransferHandling(I2C_TypeDef* I2Cx, uint16_t Address, uint8_t Number_Bytes, uint32_t ReloadEndMode, uint32_t StartStopMode);
/* SMBUS management functions ************************************************/
void I2C_SMBusAlertCmd(I2C_TypeDef* I2Cx, FunctionalState NewState);
void I2C_ClockTimeoutCmd(I2C_TypeDef* I2Cx, FunctionalState NewState);
void I2C_ExtendedClockTimeoutCmd(I2C_TypeDef* I2Cx, FunctionalState NewState);
void I2C_IdleClockTimeoutCmd(I2C_TypeDef* I2Cx, FunctionalState NewState);
void I2C_TimeoutAConfig(I2C_TypeDef* I2Cx, uint16_t Timeout);
void I2C_TimeoutBConfig(I2C_TypeDef* I2Cx, uint16_t Timeout);
void I2C_CalculatePEC(I2C_TypeDef* I2Cx, FunctionalState NewState);
void I2C_PECRequestCmd(I2C_TypeDef* I2Cx, FunctionalState NewState);
uint8_t I2C_GetPEC(I2C_TypeDef* I2Cx);
/* I2C registers management functions *****************************************/
uint32_t I2C_ReadRegister(I2C_TypeDef* I2Cx, uint8_t I2C_Register);
/* Data transfers management functions ****************************************/
void I2C_SendData(I2C_TypeDef* I2Cx, uint8_t Data);
uint8_t I2C_ReceiveData(I2C_TypeDef* I2Cx);
/* DMA transfers management functions *****************************************/
void I2C_DMACmd(I2C_TypeDef* I2Cx, uint32_t I2C_DMAReq, FunctionalState NewState);
/* Interrupts and flags management functions **********************************/
FlagStatus I2C_GetFlagStatus(I2C_TypeDef* I2Cx, uint32_t I2C_FLAG);
void I2C_ClearFlag(I2C_TypeDef* I2Cx, uint32_t I2C_FLAG);
ITStatus I2C_GetITStatus(I2C_TypeDef* I2Cx, uint32_t I2C_IT);
void I2C_ClearITPendingBit(I2C_TypeDef* I2Cx, uint32_t I2C_IT);
#ifdef __cplusplus
}
#endif
#endif /*__STM32F0XX_I2C_H */
/**
* @}
*/
/**
* @}
*/
/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/

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/**
******************************************************************************
* @file stm32f0xx_iwdg.c
* @author MCD Application Team
* @version V1.3.0
* @date 16-January-2014
* @brief This file provides firmware functions to manage the following
* functionalities of the Independent watchdog (IWDG) peripheral:
* + Prescaler and Counter configuration
* + IWDG activation
* + Flag management
*
* @verbatim
*
==============================================================================
##### IWDG features #####
==============================================================================
[..] The IWDG can be started by either software or hardware (configurable
through option byte).
[..] The IWDG is clocked by its own dedicated low-speed clock (LSI) and
thus stays active even if the main clock fails.
Once the IWDG is started, the LSI is forced ON and cannot be disabled
(LSI cannot be disabled too), and the counter starts counting down from
the reset value of 0xFFF. When it reaches the end of count value (0x000)
a system reset is generated.
The IWDG counter should be reloaded at regular intervals to prevent
an MCU reset.
[..] The IWDG is implemented in the VDD voltage domain that is still functional
in STOP and STANDBY mode (IWDG reset can wake-up from STANDBY).
[..] IWDGRST flag in RCC_CSR register can be used to inform when a IWDG
reset occurs.
[..] Min-max timeout value @40KHz (LSI): ~0.1ms / ~28.3s
The IWDG timeout may vary due to LSI frequency dispersion. STM32F0xx
devices provide the capability to measure the LSI frequency (LSI clock
should be seleted as RTC clock which is internally connected to TIM10 CH1
input capture). The measured value can be used to have an IWDG timeout with
an acceptable accuracy.
For more information, please refer to the STM32F0xx Reference manual.
##### How to use this driver #####
==============================================================================
[..] This driver allows to use IWDG peripheral with either window option enabled
or disabled. To do so follow one of the two procedures below.
(#) Window option is enabled:
(++) Start the IWDG using IWDG_Enable() function, when the IWDG is used
in software mode (no need to enable the LSI, it will be enabled
by hardware).
(++) Enable write access to IWDG_PR and IWDG_RLR registers using
IWDG_WriteAccessCmd(IWDG_WriteAccess_Enable) function.
(++) Configure the IWDG prescaler using IWDG_SetPrescaler() function.
(++) Configure the IWDG counter value using IWDG_SetReload() function.
This value will be loaded in the IWDG counter each time the counter
is reloaded, then the IWDG will start counting down from this value.
(++) Wait for the IWDG registers to be updated using IWDG_GetFlagStatus() function.
(++) Configure the IWDG refresh window using IWDG_SetWindowValue() function.
(#) Window option is disabled:
(++) Enable write access to IWDG_PR and IWDG_RLR registers using
IWDG_WriteAccessCmd(IWDG_WriteAccess_Enable) function.
(++) Configure the IWDG prescaler using IWDG_SetPrescaler() function.
(++) Configure the IWDG counter value using IWDG_SetReload() function.
This value will be loaded in the IWDG counter each time the counter
is reloaded, then the IWDG will start counting down from this value.
(++) Wait for the IWDG registers to be updated using IWDG_GetFlagStatus() function.
(++) reload the IWDG counter at regular intervals during normal operation
to prevent an MCU reset, using IWDG_ReloadCounter() function.
(++) Start the IWDG using IWDG_Enable() function, when the IWDG is used
in software mode (no need to enable the LSI, it will be enabled
by hardware).
@endverbatim
*
******************************************************************************
* @attention
*
* <h2><center>&copy; COPYRIGHT(c) 2014 STMicroelectronics</center></h2>
*
* Redistribution and use in source and binary forms, with or without modification,
* are permitted provided that the following conditions are met:
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
* 3. Neither the name of STMicroelectronics nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
******************************************************************************
*/
/* Includes ------------------------------------------------------------------*/
#include "stm32f0xx_iwdg.h"
/** @addtogroup STM32F0xx_StdPeriph_Driver
* @{
*/
/** @defgroup IWDG
* @brief IWDG driver modules
* @{
*/
/* Private typedef -----------------------------------------------------------*/
/* Private define ------------------------------------------------------------*/
/* ---------------------- IWDG registers bit mask ----------------------------*/
/* KR register bit mask */
#define KR_KEY_RELOAD ((uint16_t)0xAAAA)
#define KR_KEY_ENABLE ((uint16_t)0xCCCC)
/* Private macro -------------------------------------------------------------*/
/* Private variables ---------------------------------------------------------*/
/* Private function prototypes -----------------------------------------------*/
/* Private functions ---------------------------------------------------------*/
/** @defgroup IWDG_Private_Functions
* @{
*/
/** @defgroup IWDG_Group1 Prescaler and Counter configuration functions
* @brief Prescaler and Counter configuration functions
*
@verbatim
==============================================================================
##### Prescaler and Counter configuration functions #####
==============================================================================
@endverbatim
* @{
*/
/**
* @brief Enables or disables write access to IWDG_PR and IWDG_RLR registers.
* @param IWDG_WriteAccess: new state of write access to IWDG_PR and IWDG_RLR registers.
* This parameter can be one of the following values:
* @arg IWDG_WriteAccess_Enable: Enable write access to IWDG_PR and IWDG_RLR registers
* @arg IWDG_WriteAccess_Disable: Disable write access to IWDG_PR and IWDG_RLR registers
* @retval None
*/
void IWDG_WriteAccessCmd(uint16_t IWDG_WriteAccess)
{
/* Check the parameters */
assert_param(IS_IWDG_WRITE_ACCESS(IWDG_WriteAccess));
IWDG->KR = IWDG_WriteAccess;
}
/**
* @brief Sets IWDG Prescaler value.
* @param IWDG_Prescaler: specifies the IWDG Prescaler value.
* This parameter can be one of the following values:
* @arg IWDG_Prescaler_4: IWDG prescaler set to 4
* @arg IWDG_Prescaler_8: IWDG prescaler set to 8
* @arg IWDG_Prescaler_16: IWDG prescaler set to 16
* @arg IWDG_Prescaler_32: IWDG prescaler set to 32
* @arg IWDG_Prescaler_64: IWDG prescaler set to 64
* @arg IWDG_Prescaler_128: IWDG prescaler set to 128
* @arg IWDG_Prescaler_256: IWDG prescaler set to 256
* @retval None
*/
void IWDG_SetPrescaler(uint8_t IWDG_Prescaler)
{
/* Check the parameters */
assert_param(IS_IWDG_PRESCALER(IWDG_Prescaler));
IWDG->PR = IWDG_Prescaler;
}
/**
* @brief Sets IWDG Reload value.
* @param Reload: specifies the IWDG Reload value.
* This parameter must be a number between 0 and 0x0FFF.
* @retval None
*/
void IWDG_SetReload(uint16_t Reload)
{
/* Check the parameters */
assert_param(IS_IWDG_RELOAD(Reload));
IWDG->RLR = Reload;
}
/**
* @brief Reloads IWDG counter with value defined in the reload register
* (write access to IWDG_PR and IWDG_RLR registers disabled).
* @param None
* @retval None
*/
void IWDG_ReloadCounter(void)
{
IWDG->KR = KR_KEY_RELOAD;
}
/**
* @brief Sets the IWDG window value.
* @param WindowValue: specifies the window value to be compared to the downcounter.
* @retval None
*/
void IWDG_SetWindowValue(uint16_t WindowValue)
{
/* Check the parameters */
assert_param(IS_IWDG_WINDOW_VALUE(WindowValue));
IWDG->WINR = WindowValue;
}
/**
* @}
*/
/** @defgroup IWDG_Group2 IWDG activation function
* @brief IWDG activation function
*
@verbatim
==============================================================================
##### IWDG activation function #####
==============================================================================
@endverbatim
* @{
*/
/**
* @brief Enables IWDG (write access to IWDG_PR and IWDG_RLR registers disabled).
* @param None
* @retval None
*/
void IWDG_Enable(void)
{
IWDG->KR = KR_KEY_ENABLE;
}
/**
* @}
*/
/** @defgroup IWDG_Group3 Flag management function
* @brief Flag management function
*
@verbatim
===============================================================================
##### Flag management function #####
===============================================================================
@endverbatim
* @{
*/
/**
* @brief Checks whether the specified IWDG flag is set or not.
* @param IWDG_FLAG: specifies the flag to check.
* This parameter can be one of the following values:
* @arg IWDG_FLAG_PVU: Prescaler Value Update on going
* @arg IWDG_FLAG_RVU: Reload Value Update on going
* @arg IWDG_FLAG_WVU: Counter Window Value Update on going
* @retval The new state of IWDG_FLAG (SET or RESET).
*/
FlagStatus IWDG_GetFlagStatus(uint16_t IWDG_FLAG)
{
FlagStatus bitstatus = RESET;
/* Check the parameters */
assert_param(IS_IWDG_FLAG(IWDG_FLAG));
if ((IWDG->SR & IWDG_FLAG) != (uint32_t)RESET)
{
bitstatus = SET;
}
else
{
bitstatus = RESET;
}
/* Return the flag status */
return bitstatus;
}
/**
* @}
*/
/**
* @}
*/
/**
* @}
*/
/**
* @}
*/
/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/

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/**
******************************************************************************
* @file stm32f0xx_iwdg.h
* @author MCD Application Team
* @version V1.3.0
* @date 16-January-2014
* @brief This file contains all the functions prototypes for the IWDG
* firmware library.
******************************************************************************
* @attention
*
* <h2><center>&copy; COPYRIGHT(c) 2014 STMicroelectronics</center></h2>
*
* Redistribution and use in source and binary forms, with or without modification,
* are permitted provided that the following conditions are met:
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
* 3. Neither the name of STMicroelectronics nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
******************************************************************************
*/
/* Define to prevent recursive inclusion -------------------------------------*/
#ifndef __STM32F0XX_IWDG_H
#define __STM32F0XX_IWDG_H
#ifdef __cplusplus
extern "C" {
#endif
/* Includes ------------------------------------------------------------------*/
#include "stm32f0xx.h"
/** @addtogroup STM32F0xx_StdPeriph_Driver
* @{
*/
/** @addtogroup IWDG
* @{
*/
/* Exported types ------------------------------------------------------------*/
/* Exported constants --------------------------------------------------------*/
/** @defgroup IWDG_Exported_Constants
* @{
*/
/** @defgroup IWDG_WriteAccess
* @{
*/
#define IWDG_WriteAccess_Enable ((uint16_t)0x5555)
#define IWDG_WriteAccess_Disable ((uint16_t)0x0000)
#define IS_IWDG_WRITE_ACCESS(ACCESS) (((ACCESS) == IWDG_WriteAccess_Enable) || \
((ACCESS) == IWDG_WriteAccess_Disable))
/**
* @}
*/
/** @defgroup IWDG_prescaler
* @{
*/
#define IWDG_Prescaler_4 ((uint8_t)0x00)
#define IWDG_Prescaler_8 ((uint8_t)0x01)
#define IWDG_Prescaler_16 ((uint8_t)0x02)
#define IWDG_Prescaler_32 ((uint8_t)0x03)
#define IWDG_Prescaler_64 ((uint8_t)0x04)
#define IWDG_Prescaler_128 ((uint8_t)0x05)
#define IWDG_Prescaler_256 ((uint8_t)0x06)
#define IS_IWDG_PRESCALER(PRESCALER) (((PRESCALER) == IWDG_Prescaler_4) || \
((PRESCALER) == IWDG_Prescaler_8) || \
((PRESCALER) == IWDG_Prescaler_16) || \
((PRESCALER) == IWDG_Prescaler_32) || \
((PRESCALER) == IWDG_Prescaler_64) || \
((PRESCALER) == IWDG_Prescaler_128)|| \
((PRESCALER) == IWDG_Prescaler_256))
/**
* @}
*/
/** @defgroup IWDG_Flag
* @{
*/
#define IWDG_FLAG_PVU IWDG_SR_PVU
#define IWDG_FLAG_RVU IWDG_SR_RVU
#define IWDG_FLAG_WVU IWDG_SR_WVU
#define IS_IWDG_FLAG(FLAG) (((FLAG) == IWDG_FLAG_PVU) || ((FLAG) == IWDG_FLAG_RVU) || \
((FLAG) == IWDG_FLAG_WVU))
#define IS_IWDG_RELOAD(RELOAD) ((RELOAD) <= 0xFFF)
#define IS_IWDG_WINDOW_VALUE(VALUE) ((VALUE) <= 0xFFF)
/**
* @}
*/
/**
* @}
*/
/* Exported macro ------------------------------------------------------------*/
/* Exported functions ------------------------------------------------------- */
/* Prescaler and Counter configuration functions ******************************/
void IWDG_WriteAccessCmd(uint16_t IWDG_WriteAccess);
void IWDG_SetPrescaler(uint8_t IWDG_Prescaler);
void IWDG_SetReload(uint16_t Reload);
void IWDG_ReloadCounter(void);
void IWDG_SetWindowValue(uint16_t WindowValue);
/* IWDG activation function ***************************************************/
void IWDG_Enable(void);
/* Flag management function ***************************************************/
FlagStatus IWDG_GetFlagStatus(uint16_t IWDG_FLAG);
#ifdef __cplusplus
}
#endif
#endif /* __STM32F0XX_IWDG_H */
/**
* @}
*/
/**
* @}
*/
/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/

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/**
******************************************************************************
* @file stm32f0xx_misc.c
* @author MCD Application Team
* @version V1.3.0
* @date 16-January-2014
* @brief This file provides all the miscellaneous firmware functions (add-on
* to CMSIS functions).
******************************************************************************
* @attention
*
* <h2><center>&copy; COPYRIGHT(c) 2014 STMicroelectronics</center></h2>
*
* Redistribution and use in source and binary forms, with or without modification,
* are permitted provided that the following conditions are met:
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
* 3. Neither the name of STMicroelectronics nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
******************************************************************************
*/
/* Includes ------------------------------------------------------------------*/
#include "stm32f0xx_misc.h"
/** @addtogroup STM32F0xx_StdPeriph_Driver
* @{
*/
/** @defgroup MISC
* @brief MISC driver modules
* @{
*/
/* Private typedef -----------------------------------------------------------*/
/* Private define ------------------------------------------------------------*/
/* Private macro -------------------------------------------------------------*/
/* Private variables ---------------------------------------------------------*/
/* Private function prototypes -----------------------------------------------*/
/* Private functions ---------------------------------------------------------*/
/** @defgroup MISC_Private_Functions
* @{
*/
/**
*
@verbatim
*******************************************************************************
##### Interrupts configuration functions #####
*******************************************************************************
[..] This section provide functions allowing to configure the NVIC interrupts
(IRQ). The Cortex-M0 exceptions are managed by CMSIS functions.
(#) Enable and Configure the priority of the selected IRQ Channels.
The priority can be 0..3.
-@- Lower priority values gives higher priority.
-@- Priority Order:
(#@) Lowest priority.
(#@) Lowest hardware priority (IRQn position).
@endverbatim
*/
/**
* @brief Initializes the NVIC peripheral according to the specified
* parameters in the NVIC_InitStruct.
* @param NVIC_InitStruct: pointer to a NVIC_InitTypeDef structure that contains
* the configuration information for the specified NVIC peripheral.
* @retval None
*/
void NVIC_Init(NVIC_InitTypeDef* NVIC_InitStruct)
{
uint32_t tmppriority = 0x00;
/* Check the parameters */
assert_param(IS_FUNCTIONAL_STATE(NVIC_InitStruct->NVIC_IRQChannelCmd));
assert_param(IS_NVIC_PRIORITY(NVIC_InitStruct->NVIC_IRQChannelPriority));
if (NVIC_InitStruct->NVIC_IRQChannelCmd != DISABLE)
{
/* Compute the Corresponding IRQ Priority --------------------------------*/
tmppriority = NVIC->IP[NVIC_InitStruct->NVIC_IRQChannel >> 0x02];
tmppriority &= (uint32_t)(~(((uint32_t)0xFF) << ((NVIC_InitStruct->NVIC_IRQChannel & 0x03) * 8)));
tmppriority |= (uint32_t)((((uint32_t)NVIC_InitStruct->NVIC_IRQChannelPriority << 6) & 0xFF) << ((NVIC_InitStruct->NVIC_IRQChannel & 0x03) * 8));
NVIC->IP[NVIC_InitStruct->NVIC_IRQChannel >> 0x02] = tmppriority;
/* Enable the Selected IRQ Channels --------------------------------------*/
NVIC->ISER[0] = (uint32_t)0x01 << (NVIC_InitStruct->NVIC_IRQChannel & (uint8_t)0x1F);
}
else
{
/* Disable the Selected IRQ Channels -------------------------------------*/
NVIC->ICER[0] = (uint32_t)0x01 << (NVIC_InitStruct->NVIC_IRQChannel & (uint8_t)0x1F);
}
}
/**
* @brief Selects the condition for the system to enter low power mode.
* @param LowPowerMode: Specifies the new mode for the system to enter low power mode.
* This parameter can be one of the following values:
* @arg NVIC_LP_SEVONPEND: Low Power SEV on Pend.
* @arg NVIC_LP_SLEEPDEEP: Low Power DEEPSLEEP request.
* @arg NVIC_LP_SLEEPONEXIT: Low Power Sleep on Exit.
* @param NewState: new state of LP condition.
* This parameter can be: ENABLE or DISABLE.
* @retval None
*/
void NVIC_SystemLPConfig(uint8_t LowPowerMode, FunctionalState NewState)
{
/* Check the parameters */
assert_param(IS_NVIC_LP(LowPowerMode));
assert_param(IS_FUNCTIONAL_STATE(NewState));
if (NewState != DISABLE)
{
SCB->SCR |= LowPowerMode;
}
else
{
SCB->SCR &= (uint32_t)(~(uint32_t)LowPowerMode);
}
}
/**
* @brief Configures the SysTick clock source.
* @param SysTick_CLKSource: specifies the SysTick clock source.
* This parameter can be one of the following values:
* @arg SysTick_CLKSource_HCLK_Div8: AHB clock divided by 8 selected as SysTick clock source.
* @arg SysTick_CLKSource_HCLK: AHB clock selected as SysTick clock source.
* @retval None
*/
void SysTick_CLKSourceConfig(uint32_t SysTick_CLKSource)
{
/* Check the parameters */
assert_param(IS_SYSTICK_CLK_SOURCE(SysTick_CLKSource));
if (SysTick_CLKSource == SysTick_CLKSource_HCLK)
{
SysTick->CTRL |= SysTick_CLKSource_HCLK;
}
else
{
SysTick->CTRL &= SysTick_CLKSource_HCLK_Div8;
}
}
/**
* @}
*/
/**
* @}
*/
/**
* @}
*/
/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/

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/**
******************************************************************************
* @file stm32f0xx_misc.h
* @author MCD Application Team
* @version V1.3.0
* @date 16-January-2014
* @brief This file contains all the functions prototypes for the miscellaneous
* firmware library functions (add-on to CMSIS functions).
******************************************************************************
* @attention
*
* <h2><center>&copy; COPYRIGHT(c) 2014 STMicroelectronics</center></h2>
*
* Redistribution and use in source and binary forms, with or without modification,
* are permitted provided that the following conditions are met:
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
* 3. Neither the name of STMicroelectronics nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
******************************************************************************
*/
/* Define to prevent recursive inclusion -------------------------------------*/
#ifndef __STM32F0XX_MISC_H
#define __STM32F0XX_MISC_H
#ifdef __cplusplus
extern "C" {
#endif
/* Includes ------------------------------------------------------------------*/
#include "stm32f0xx.h"
/** @addtogroup STM32F0xx_StdPeriph_Driver
* @{
*/
/** @addtogroup MISC
* @{
*/
/* Exported types ------------------------------------------------------------*/
/**
* @brief NVIC Init Structure definition
*/
typedef struct
{
uint8_t NVIC_IRQChannel; /*!< Specifies the IRQ channel to be enabled or disabled.
This parameter can be a value of @ref IRQn_Type
(For the complete STM32 Devices IRQ Channels list,
please refer to stm32f0xx.h file) */
uint8_t NVIC_IRQChannelPriority; /*!< Specifies the priority level for the IRQ channel specified
in NVIC_IRQChannel. This parameter can be a value
between 0 and 3. */
FunctionalState NVIC_IRQChannelCmd; /*!< Specifies whether the IRQ channel defined in NVIC_IRQChannel
will be enabled or disabled.
This parameter can be set either to ENABLE or DISABLE */
} NVIC_InitTypeDef;
/**
*
@verbatim
@endverbatim
*/
/* Exported constants --------------------------------------------------------*/
/** @defgroup MISC_Exported_Constants
* @{
*/
/** @defgroup MISC_System_Low_Power
* @{
*/
#define NVIC_LP_SEVONPEND ((uint8_t)0x10)
#define NVIC_LP_SLEEPDEEP ((uint8_t)0x04)
#define NVIC_LP_SLEEPONEXIT ((uint8_t)0x02)
#define IS_NVIC_LP(LP) (((LP) == NVIC_LP_SEVONPEND) || \
((LP) == NVIC_LP_SLEEPDEEP) || \
((LP) == NVIC_LP_SLEEPONEXIT))
/**
* @}
*/
/** @defgroup MISC_Preemption_Priority_Group
* @{
*/
#define IS_NVIC_PRIORITY(PRIORITY) ((PRIORITY) < 0x04)
/**
* @}
*/
/** @defgroup MISC_SysTick_clock_source
* @{
*/
#define SysTick_CLKSource_HCLK_Div8 ((uint32_t)0xFFFFFFFB)
#define SysTick_CLKSource_HCLK ((uint32_t)0x00000004)
#define IS_SYSTICK_CLK_SOURCE(SOURCE) (((SOURCE) == SysTick_CLKSource_HCLK) || \
((SOURCE) == SysTick_CLKSource_HCLK_Div8))
/**
* @}
*/
/**
* @}
*/
/* Exported macro ------------------------------------------------------------*/
/* Exported functions ------------------------------------------------------- */
void NVIC_Init(NVIC_InitTypeDef* NVIC_InitStruct);
void NVIC_SystemLPConfig(uint8_t LowPowerMode, FunctionalState NewState);
void SysTick_CLKSourceConfig(uint32_t SysTick_CLKSource);
#ifdef __cplusplus
}
#endif
#endif /* __STM32F0XX_MISC_H */
/**
* @}
*/
/**
* @}
*/
/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/

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/**
******************************************************************************
* @file stm32f0xx_pwr.c
* @author MCD Application Team
* @version V1.3.0
* @date 16-January-2014
* @brief This file provides firmware functions to manage the following
* functionalities of the Power Controller (PWR) peripheral:
* + Backup Domain Access
* + PVD configuration
* + WakeUp pins configuration
* + Low Power modes configuration
* + Flags management
*
******************************************************************************
* @attention
*
* <h2><center>&copy; COPYRIGHT(c) 2014 STMicroelectronics</center></h2>
*
* Redistribution and use in source and binary forms, with or without modification,
* are permitted provided that the following conditions are met:
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
* 3. Neither the name of STMicroelectronics nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
******************************************************************************
*/
/* Includes ------------------------------------------------------------------*/
#include "stm32f0xx_pwr.h"
#include "stm32f0xx_rcc.h"
/** @addtogroup STM32F0xx_StdPeriph_Driver
* @{
*/
/** @defgroup PWR
* @brief PWR driver modules
* @{
*/
/* Private typedef -----------------------------------------------------------*/
/* Private define ------------------------------------------------------------*/
/* ------------------ PWR registers bit mask ------------------------ */
/* CR register bit mask */
#define CR_DS_MASK ((uint32_t)0xFFFFFFFC)
#define CR_PLS_MASK ((uint32_t)0xFFFFFF1F)
/* Private macro -------------------------------------------------------------*/
/* Private variables ---------------------------------------------------------*/
/* Private function prototypes -----------------------------------------------*/
/* Private functions ---------------------------------------------------------*/
/** @defgroup PWR_Private_Functions
* @{
*/
/** @defgroup PWR_Group1 Backup Domain Access function
* @brief Backup Domain Access function
*
@verbatim
==============================================================================
##### Backup Domain Access function #####
==============================================================================
[..] After reset, the Backup Domain Registers (RCC BDCR Register, RTC registers
and RTC backup registers) are protected against possible stray write accesses.
[..] To enable access to Backup domain use the PWR_BackupAccessCmd(ENABLE) function.
@endverbatim
* @{
*/
/**
* @brief Deinitializes the PWR peripheral registers to their default reset values.
* @param None
* @retval None
*/
void PWR_DeInit(void)
{
RCC_APB1PeriphResetCmd(RCC_APB1Periph_PWR, ENABLE);
RCC_APB1PeriphResetCmd(RCC_APB1Periph_PWR, DISABLE);
}
/**
* @brief Enables or disables access to the Backup domain registers.
* @note If the HSE divided by 32 is used as the RTC clock, the
* Backup Domain Access should be kept enabled.
* @param NewState: new state of the access to the Backup domain registers.
* This parameter can be: ENABLE or DISABLE.
* @retval None
*/
void PWR_BackupAccessCmd(FunctionalState NewState)
{
/* Check the parameters */
assert_param(IS_FUNCTIONAL_STATE(NewState));
if (NewState != DISABLE)
{
/* Enable the Backup Domain Access */
PWR->CR |= PWR_CR_DBP;
}
else
{
/* Disable the Backup Domain Access */
PWR->CR &= (uint32_t)~((uint32_t)PWR_CR_DBP);
}
}
/**
* @}
*/
/** @defgroup PWR_Group2 PVD configuration functions
* @brief PVD configuration functions
*
@verbatim
==============================================================================
##### PVD configuration functions #####
==============================================================================
[..]
(+) The PVD is used to monitor the VDD power supply by comparing it to a threshold
selected by the PVD Level (PLS[2:0] bits in the PWR_CR).
(+) A PVDO flag is available to indicate if VDD/VDDA is higher or lower than the
PVD threshold. This event is internally connected to the EXTI line16
and can generate an interrupt if enabled through the EXTI registers.
(+) The PVD is stopped in Standby mode.
@endverbatim
* @{
*/
/**
* @brief Configures the voltage threshold detected by the Power Voltage Detector(PVD).
* @note This function is not applicable for STM32F030 devices.
* @param PWR_PVDLevel: specifies the PVD detection level
* This parameter can be one of the following values:
* @arg PWR_PVDLevel_0
* @arg PWR_PVDLevel_1
* @arg PWR_PVDLevel_2
* @arg PWR_PVDLevel_3
* @arg PWR_PVDLevel_4
* @arg PWR_PVDLevel_5
* @arg PWR_PVDLevel_6
* @arg PWR_PVDLevel_7
* @note Refer to the electrical characteristics of your device datasheet for
* more details about the voltage threshold corresponding to each
* detection level.
* @retval None
*/
void PWR_PVDLevelConfig(uint32_t PWR_PVDLevel)
{
uint32_t tmpreg = 0;
/* Check the parameters */
assert_param(IS_PWR_PVD_LEVEL(PWR_PVDLevel));
tmpreg = PWR->CR;
/* Clear PLS[7:5] bits */
tmpreg &= CR_PLS_MASK;
/* Set PLS[7:5] bits according to PWR_PVDLevel value */
tmpreg |= PWR_PVDLevel;
/* Store the new value */
PWR->CR = tmpreg;
}
/**
* @brief Enables or disables the Power Voltage Detector(PVD).
* @note This function is not applicable for STM32F030 devices.
* @param NewState: new state of the PVD.
* This parameter can be: ENABLE or DISABLE.
* @retval None
*/
void PWR_PVDCmd(FunctionalState NewState)
{
/* Check the parameters */
assert_param(IS_FUNCTIONAL_STATE(NewState));
if (NewState != DISABLE)
{
/* Enable the PVD */
PWR->CR |= PWR_CR_PVDE;
}
else
{
/* Disable the PVD */
PWR->CR &= (uint32_t)~((uint32_t)PWR_CR_PVDE);
}
}
/**
* @}
*/
/** @defgroup PWR_Group3 WakeUp pins configuration functions
* @brief WakeUp pins configuration functions
*
@verbatim
==============================================================================
##### WakeUp pin configuration functions #####
==============================================================================
(+) WakeUp pins are used to wakeup the system from Standby mode. These pins are
forced in input pull down configuration and are active on rising edges.
(+) There are eight WakeUp pins: WakeUp Pin 1 on PA.00 and WakeUp Pin 2 on PC.13.
The following WakeUp pins are only applicable for STM32F072 dvices:
WakeUp Pin 3 on PE.06, WakeUp Pin 4 on PA.02, WakeUp Pin 5 on PC.05,
WakeUp Pin 6 on PB.05, WakeUp Pin 7 on PB.15 and WakeUp Pin 8 on PF.02.
@endverbatim
* @{
*/
/**
* @brief Enables or disables the WakeUp Pin functionality.
* @param PWR_WakeUpPin: specifies the WakeUpPin.
* This parameter can be one of the following values
* @arg PWR_WakeUpPin_1
* @arg PWR_WakeUpPin_2
* @arg PWR_WakeUpPin_3, only applicable for STM32F072 devices
* @arg PWR_WakeUpPin_4, only applicable for STM32F072 devices
* @arg PWR_WakeUpPin_5, only applicable for STM32F072 devices
* @arg PWR_WakeUpPin_6, only applicable for STM32F072 devices
* @arg PWR_WakeUpPin_7, only applicable for STM32F072 devices
* @arg PWR_WakeUpPin_8, only applicable for STM32F072 devices
* @param NewState: new state of the WakeUp Pin functionality.
* This parameter can be: ENABLE or DISABLE.
* @retval None
*/
void PWR_WakeUpPinCmd(uint32_t PWR_WakeUpPin, FunctionalState NewState)
{
/* Check the parameters */
assert_param(IS_PWR_WAKEUP_PIN(PWR_WakeUpPin));
assert_param(IS_FUNCTIONAL_STATE(NewState));
if (NewState != DISABLE)
{
/* Enable the EWUPx pin */
PWR->CSR |= PWR_WakeUpPin;
}
else
{
/* Disable the EWUPx pin */
PWR->CSR &= ~PWR_WakeUpPin;
}
}
/**
* @}
*/
/** @defgroup PWR_Group4 Low Power modes configuration functions
* @brief Low Power modes configuration functions
*
@verbatim
==============================================================================
##### Low Power modes configuration functions #####
==============================================================================
[..] The devices feature three low-power modes:
(+) Sleep mode: Cortex-M0 core stopped, peripherals kept running.
(+) Stop mode: all clocks are stopped, regulator running, regulator in low power mode
(+) Standby mode: VCORE domain powered off
*** Sleep mode ***
==================
[..]
(+) Entry:
(++) The Sleep mode is entered by executing the WFE() or WFI() instructions.
(+) Exit:
(++) Any peripheral interrupt acknowledged by the nested vectored interrupt
controller (NVIC) can wake up the device from Sleep mode.
*** Stop mode ***
=================
[..] In Stop mode, all clocks in the VCORE domain are stopped, the PLL, the HSI,
the HSI14 and the HSE RC oscillators are disabled. Internal SRAM and register
contents are preserved.
The voltage regulator can be configured either in normal or low-power mode.
(+) Entry:
(++) The Stop mode is entered using the PWR_EnterSTOPMode(PWR_Regulator_LowPower,)
function with regulator in LowPower or with Regulator ON.
(+) Exit:
(++) Any EXTI Line (Internal or External) configured in Interrupt/Event mode
or any internal IPs (I2C, UASRT or CEC) wakeup event.
*** Standby mode ***
====================
[..] The Standby mode allows to achieve the lowest power consumption. It is based
on the Cortex-M0 deepsleep mode, with the voltage regulator disabled.
The VCORE domain is consequently powered off. The PLL, the HSI, the HSI14
oscillator and the HSE oscillator are also switched off. SRAM and register
contents are lost except for the Backup domain (RTC registers, RTC backup
registers and Standby circuitry).
[..] The voltage regulator is OFF.
(+) Entry:
(++) The Standby mode is entered using the PWR_EnterSTANDBYMode() function.
(+) Exit:
(++) WKUP pin rising edge, RTC alarm (Alarm A and Alarm B), RTC wakeup,
tamper event, time-stamp event, external reset in NRST pin, IWDG reset.
*** Auto-wakeup (AWU) from low-power mode ***
=============================================
[..] The MCU can be woken up from low-power mode by an RTC Alarm event, a tamper
event, a time-stamp event, or a comparator event, without depending on an
external interrupt (Auto-wakeup mode).
(+) RTC auto-wakeup (AWU) from the Stop mode
(++) To wake up from the Stop mode with an RTC alarm event, it is necessary to:
(+++) Configure the EXTI Line 17 to be sensitive to rising edges (Interrupt
or Event modes) using the EXTI_Init() function.
(+++) Enable the RTC Alarm Interrupt using the RTC_ITConfig() function
(+++) Configure the RTC to generate the RTC alarm using the RTC_SetAlarm()
and RTC_AlarmCmd() functions.
(++) To wake up from the Stop mode with an RTC Tamper or time stamp event, it
is necessary to:
(+++) Configure the EXTI Line 19 to be sensitive to rising edges (Interrupt
or Event modes) using the EXTI_Init() function.
(+++) Enable the RTC Tamper or time stamp Interrupt using the RTC_ITConfig()
function.
(+++) Configure the RTC to detect the tamper or time stamp event using the
RTC_TimeStampConfig(), RTC_TamperTriggerConfig() and RTC_TamperCmd()
functions.
(+) RTC auto-wakeup (AWU) from the Standby mode
(++) To wake up from the Standby mode with an RTC alarm event, it is necessary to:
(+++) Enable the RTC Alarm Interrupt using the RTC_ITConfig() function.
(+++) Configure the RTC to generate the RTC alarm using the RTC_SetAlarm()
and RTC_AlarmCmd() functions.
(++) To wake up from the Standby mode with an RTC Tamper or time stamp event, it
is necessary to:
(+++) Enable the RTC Tamper or time stamp Interrupt using the RTC_ITConfig()
function.
(+++) Configure the RTC to detect the tamper or time stamp event using the
RTC_TimeStampConfig(), RTC_TamperTriggerConfig() and RTC_TamperCmd()
functions.
(+) Comparator auto-wakeup (AWU) from the Stop mode
(++) To wake up from the Stop mode with an comparator 1 or comparator 2 wakeup
event, it is necessary to:
(+++) Configure the EXTI Line 21 for comparator 1 or EXTI Line 22 for comparator 2
to be sensitive to to the selected edges (falling, rising or falling
and rising) (Interrupt or Event modes) using the EXTI_Init() function.
(+++) Configure the comparator to generate the event.
@endverbatim
* @{
*/
/**
* @brief Enters Sleep mode.
* @note In Sleep mode, all I/O pins keep the same state as in Run mode.
* @param PWR_SLEEPEntry: specifies if SLEEP mode in entered with WFI or WFE instruction.
* This parameter can be one of the following values:
* @arg PWR_SLEEPEntry_WFI: enter SLEEP mode with WFI instruction
* @arg PWR_SLEEPEntry_WFE: enter SLEEP mode with WFE instruction
* @retval None
*/
void PWR_EnterSleepMode(uint8_t PWR_SLEEPEntry)
{
/* Check the parameters */
assert_param(IS_PWR_SLEEP_ENTRY(PWR_SLEEPEntry));
/* Clear SLEEPDEEP bit of Cortex-M0 System Control Register */
SCB->SCR &= (uint32_t)~((uint32_t)SCB_SCR_SLEEPDEEP_Msk);
/* Select SLEEP mode entry -------------------------------------------------*/
if(PWR_SLEEPEntry == PWR_SLEEPEntry_WFI)
{
/* Request Wait For Interrupt */
__WFI();
}
else
{
/* Request Wait For Event */
__WFE();
}
}
/**
* @brief Enters STOP mode.
* @note In Stop mode, all I/O pins keep the same state as in Run mode.
* @note When exiting Stop mode by issuing an interrupt or a wakeup event,
* the HSI RC oscillator is selected as system clock.
* @note When the voltage regulator operates in low power mode, an additional
* startup delay is incurred when waking up from Stop mode.
* By keeping the internal regulator ON during Stop mode, the consumption
* is higher although the startup time is reduced.
* @param PWR_Regulator: specifies the regulator state in STOP mode.
* This parameter can be one of the following values:
* @arg PWR_Regulator_ON: STOP mode with regulator ON
* @arg PWR_Regulator_LowPower: STOP mode with regulator in low power mode
* @param PWR_STOPEntry: specifies if STOP mode in entered with WFI or WFE instruction.
* This parameter can be one of the following values:
* @arg PWR_STOPEntry_WFI: enter STOP mode with WFI instruction
* @arg PWR_STOPEntry_WFE: enter STOP mode with WFE instruction
@arg PWR_STOPEntry_SLEEPONEXIT: enter STOP mode with SLEEPONEXIT instruction
* @retval None
*/
void PWR_EnterSTOPMode(uint32_t PWR_Regulator, uint8_t PWR_STOPEntry)
{
uint32_t tmpreg = 0;
/* Check the parameters */
assert_param(IS_PWR_REGULATOR(PWR_Regulator));
assert_param(IS_PWR_STOP_ENTRY(PWR_STOPEntry));
/* Select the regulator state in STOP mode ---------------------------------*/
tmpreg = PWR->CR;
/* Clear PDDS and LPDSR bits */
tmpreg &= CR_DS_MASK;
/* Set LPDSR bit according to PWR_Regulator value */
tmpreg |= PWR_Regulator;
/* Store the new value */
PWR->CR = tmpreg;
/* Set SLEEPDEEP bit of Cortex-M0 System Control Register */
SCB->SCR |= SCB_SCR_SLEEPDEEP_Msk;
/* Select STOP mode entry --------------------------------------------------*/
if(PWR_STOPEntry == PWR_STOPEntry_WFI)
{
/* Request Wait For Interrupt */
__WFI();
/* Reset SLEEPDEEP bit of Cortex System Control Register */
SCB->SCR &= (uint32_t)~((uint32_t)SCB_SCR_SLEEPDEEP_Msk);
}
else if (PWR_STOPEntry == PWR_STOPEntry_WFE)
{
/* Request Wait For Event */
__WFE();
/* Reset SLEEPDEEP bit of Cortex System Control Register */
SCB->SCR &= (uint32_t)~((uint32_t)SCB_SCR_SLEEPDEEP_Msk);
}
else
{
/* Set SLEEP on exit bit of Cortex-M0 System Control Register */
SCB->SCR |= SCB_SCR_SLEEPONEXIT_Msk;
}
}
/**
* @brief Enters STANDBY mode.
* @note In Standby mode, all I/O pins are high impedance except for:
* - Reset pad (still available)
* - RTC_AF1 pin (PC13) if configured for Wakeup pin 2 (WKUP2), tamper,
* time-stamp, RTC Alarm out, or RTC clock calibration out.
* - WKUP pin 1 (PA0) if enabled.
* @param None
* @retval None
*/
void PWR_EnterSTANDBYMode(void)
{
/* Clear Wakeup flag */
PWR->CR |= PWR_CR_CWUF;
/* Select STANDBY mode */
PWR->CR |= PWR_CR_PDDS;
/* Set SLEEPDEEP bit of Cortex-M0 System Control Register */
SCB->SCR |= SCB_SCR_SLEEPDEEP_Msk;
/* Request Wait For Interrupt */
__WFI();
}
/**
* @}
*/
/** @defgroup PWR_Group5 Flags management functions
* @brief Flags management functions
*
@verbatim
==============================================================================
##### Flags management functions #####
==============================================================================
@endverbatim
* @{
*/
/**
* @brief Checks whether the specified PWR flag is set or not.
* @param PWR_FLAG: specifies the flag to check.
* This parameter can be one of the following values:
* @arg PWR_FLAG_WU: Wake Up flag. This flag indicates that a wakeup
* event was received from the WKUP pin or from the RTC alarm
* (Alarm A or Alarm B), RTC Tamper event or RTC TimeStamp event.
* @arg PWR_FLAG_SB: StandBy flag. This flag indicates that the
* system was resumed from StandBy mode.
* @arg PWR_FLAG_PVDO: PVD Output. This flag is valid only if PVD
* is enabled by the PWR_PVDCmd() function.
* @arg PWR_FLAG_VREFINTRDY: Internal Voltage Reference Ready flag.
* This flag indicates the state of the internal voltage
* reference, VREFINT.
* @retval The new state of PWR_FLAG (SET or RESET).
*/
FlagStatus PWR_GetFlagStatus(uint32_t PWR_FLAG)
{
FlagStatus bitstatus = RESET;
/* Check the parameters */
assert_param(IS_PWR_GET_FLAG(PWR_FLAG));
if ((PWR->CSR & PWR_FLAG) != (uint32_t)RESET)
{
bitstatus = SET;
}
else
{
bitstatus = RESET;
}
/* Return the flag status */
return bitstatus;
}
/**
* @brief Clears the PWR's pending flags.
* @param PWR_FLAG: specifies the flag to clear.
* This parameter can be one of the following values:
* @arg PWR_FLAG_WU: Wake Up flag
* @arg PWR_FLAG_SB: StandBy flag
* @retval None
*/
void PWR_ClearFlag(uint32_t PWR_FLAG)
{
/* Check the parameters */
assert_param(IS_PWR_CLEAR_FLAG(PWR_FLAG));
PWR->CR |= PWR_FLAG << 2;
}
/**
* @}
*/
/**
* @}
*/
/**
* @}
*/
/**
* @}
*/
/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/

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/**
******************************************************************************
* @file stm32f0xx_pwr.h
* @author MCD Application Team
* @version V1.3.0
* @date 16-January-2014
* @brief This file contains all the functions prototypes for the PWR firmware
* library.
******************************************************************************
* @attention
*
* <h2><center>&copy; COPYRIGHT(c) 2014 STMicroelectronics</center></h2>
*
* Redistribution and use in source and binary forms, with or without modification,
* are permitted provided that the following conditions are met:
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
* 3. Neither the name of STMicroelectronics nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
******************************************************************************
*/
/* Define to prevent recursive inclusion -------------------------------------*/
#ifndef __STM32F0XX_PWR_H
#define __STM32F0XX_PWR_H
#ifdef __cplusplus
extern "C" {
#endif
/* Includes ------------------------------------------------------------------*/
#include "stm32f0xx.h"
/** @addtogroup STM32F0xx_StdPeriph_Driver
* @{
*/
/** @addtogroup PWR
* @{
*/
/* Exported types ------------------------------------------------------------*/
/* Exported constants --------------------------------------------------------*/
/** @defgroup PWR_Exported_Constants
* @{
*/
/** @defgroup PWR_PVD_detection_level
* @brief This parameters are only applicable for STM32F051 and STM32F072 devices
* @{
*/
#define PWR_PVDLevel_0 PWR_CR_PLS_LEV0
#define PWR_PVDLevel_1 PWR_CR_PLS_LEV1
#define PWR_PVDLevel_2 PWR_CR_PLS_LEV2
#define PWR_PVDLevel_3 PWR_CR_PLS_LEV3
#define PWR_PVDLevel_4 PWR_CR_PLS_LEV4
#define PWR_PVDLevel_5 PWR_CR_PLS_LEV5
#define PWR_PVDLevel_6 PWR_CR_PLS_LEV6
#define PWR_PVDLevel_7 PWR_CR_PLS_LEV7
#define IS_PWR_PVD_LEVEL(LEVEL) (((LEVEL) == PWR_PVDLevel_0) || ((LEVEL) == PWR_PVDLevel_1)|| \
((LEVEL) == PWR_PVDLevel_2) || ((LEVEL) == PWR_PVDLevel_3)|| \
((LEVEL) == PWR_PVDLevel_4) || ((LEVEL) == PWR_PVDLevel_5)|| \
((LEVEL) == PWR_PVDLevel_6) || ((LEVEL) == PWR_PVDLevel_7))
/**
* @}
*/
/** @defgroup PWR_WakeUp_Pins
* @{
*/
#define PWR_WakeUpPin_1 PWR_CSR_EWUP1
#define PWR_WakeUpPin_2 PWR_CSR_EWUP2
#define PWR_WakeUpPin_3 PWR_CSR_EWUP3 /*!< only applicable for STM32F072 devices */
#define PWR_WakeUpPin_4 PWR_CSR_EWUP4 /*!< only applicable for STM32F072 devices */
#define PWR_WakeUpPin_5 PWR_CSR_EWUP5 /*!< only applicable for STM32F072 devices */
#define PWR_WakeUpPin_6 PWR_CSR_EWUP6 /*!< only applicable for STM32F072 devices */
#define PWR_WakeUpPin_7 PWR_CSR_EWUP7 /*!< only applicable for STM32F072 devices */
#define PWR_WakeUpPin_8 PWR_CSR_EWUP8 /*!< only applicable for STM32F072 devices */
#define IS_PWR_WAKEUP_PIN(PIN) (((PIN) == PWR_WakeUpPin_1) || ((PIN) == PWR_WakeUpPin_2) || \
((PIN) == PWR_WakeUpPin_3) || ((PIN) == PWR_WakeUpPin_4) || \
((PIN) == PWR_WakeUpPin_5) || ((PIN) == PWR_WakeUpPin_6) || \
((PIN) == PWR_WakeUpPin_7) || ((PIN) == PWR_WakeUpPin_8))
/**
* @}
*/
/** @defgroup PWR_Regulator_state_is_Sleep_STOP_mode
* @{
*/
#define PWR_Regulator_ON ((uint32_t)0x00000000)
#define PWR_Regulator_LowPower PWR_CR_LPSDSR
#define IS_PWR_REGULATOR(REGULATOR) (((REGULATOR) == PWR_Regulator_ON) || \
((REGULATOR) == PWR_Regulator_LowPower))
/**
* @}
*/
/** @defgroup PWR_SLEEP_mode_entry
* @{
*/
#define PWR_SLEEPEntry_WFI ((uint8_t)0x01)
#define PWR_SLEEPEntry_WFE ((uint8_t)0x02)
#define IS_PWR_SLEEP_ENTRY(ENTRY) (((ENTRY) == PWR_SLEEPEntry_WFI) || ((ENTRY) == PWR_SLEEPEntry_WFE))
/**
* @}
*/
/** @defgroup PWR_STOP_mode_entry
* @{
*/
#define PWR_STOPEntry_WFI ((uint8_t)0x01)
#define PWR_STOPEntry_WFE ((uint8_t)0x02)
#define PWR_STOPEntry_SLEEPONEXIT ((uint8_t)0x03)
#define IS_PWR_STOP_ENTRY(ENTRY) (((ENTRY) == PWR_STOPEntry_WFI) || ((ENTRY) == PWR_STOPEntry_WFE) ||\
((ENTRY) == PWR_STOPEntry_SLEEPONEXIT))
/**
* @}
*/
/** @defgroup PWR_Flag
* @{
*/
#define PWR_FLAG_WU PWR_CSR_WUF
#define PWR_FLAG_SB PWR_CSR_SBF
#define PWR_FLAG_PVDO PWR_CSR_PVDO /*!< Not applicable for STM32F030 devices */
#define PWR_FLAG_VREFINTRDY PWR_CSR_VREFINTRDYF
#define IS_PWR_GET_FLAG(FLAG) (((FLAG) == PWR_FLAG_WU) || ((FLAG) == PWR_FLAG_SB) || \
((FLAG) == PWR_FLAG_PVDO) || ((FLAG) == PWR_FLAG_VREFINTRDY))
#define IS_PWR_CLEAR_FLAG(FLAG) (((FLAG) == PWR_FLAG_WU) || ((FLAG) == PWR_FLAG_SB))
/**
* @}
*/
/**
* @}
*/
/* Exported macro ------------------------------------------------------------*/
/* Exported functions ------------------------------------------------------- */
/* Function used to set the PWR configuration to the default reset state ******/
void PWR_DeInit(void);
/* Backup Domain Access function **********************************************/
void PWR_BackupAccessCmd(FunctionalState NewState);
/* PVD configuration functions ************************************************/
void PWR_PVDLevelConfig(uint32_t PWR_PVDLevel); /*!< only applicable for STM32F051 and STM32F072 devices */
void PWR_PVDCmd(FunctionalState NewState); /*!< only applicable for STM32F051 and STM32F072 devices */
/* WakeUp pins configuration functions ****************************************/
void PWR_WakeUpPinCmd(uint32_t PWR_WakeUpPin, FunctionalState NewState);
/* Low Power modes configuration functions ************************************/
void PWR_EnterSleepMode(uint8_t PWR_SLEEPEntry);
void PWR_EnterSTOPMode(uint32_t PWR_Regulator, uint8_t PWR_STOPEntry);
void PWR_EnterSTANDBYMode(void);
/* Flags management functions *************************************************/
FlagStatus PWR_GetFlagStatus(uint32_t PWR_FLAG);
void PWR_ClearFlag(uint32_t PWR_FLAG);
#ifdef __cplusplus
}
#endif
#endif /* __STM32F0XX_PWR_H */
/**
* @}
*/
/**
* @}
*/
/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/

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/**
******************************************************************************
* @file stm32f0xx_rcc.h
* @author MCD Application Team
* @version V1.3.0
* @date 16-January-2014
* @brief This file contains all the functions prototypes for the RCC
* firmware library.
******************************************************************************
* @attention
*
* <h2><center>&copy; COPYRIGHT(c) 2014 STMicroelectronics</center></h2>
*
* Redistribution and use in source and binary forms, with or without modification,
* are permitted provided that the following conditions are met:
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
* 3. Neither the name of STMicroelectronics nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
******************************************************************************
*/
/* Define to prevent recursive inclusion -------------------------------------*/
#ifndef __STM32F0XX_RCC_H
#define __STM32F0XX_RCC_H
#ifdef __cplusplus
extern "C" {
#endif
/* Includes ------------------------------------------------------------------*/
#include "stm32f0xx.h"
/** @addtogroup STM32F0xx_StdPeriph_Driver
* @{
*/
/** @addtogroup RCC
* @{
*/
/* Exported types ------------------------------------------------------------*/
typedef struct
{
uint32_t SYSCLK_Frequency;
uint32_t HCLK_Frequency;
uint32_t PCLK_Frequency;
uint32_t ADCCLK_Frequency;
uint32_t CECCLK_Frequency;
uint32_t I2C1CLK_Frequency;
uint32_t USART1CLK_Frequency;
uint32_t USART2CLK_Frequency; /*!< Only applicable for STM32F072 devices */
uint32_t USBCLK_Frequency; /*!< Only applicable for STM32F072 devices */
}RCC_ClocksTypeDef;
/* Exported constants --------------------------------------------------------*/
/** @defgroup RCC_Exported_Constants
* @{
*/
/** @defgroup RCC_HSE_configuration
* @{
*/
#define RCC_HSE_OFF ((uint8_t)0x00)
#define RCC_HSE_ON ((uint8_t)0x01)
#define RCC_HSE_Bypass ((uint8_t)0x05)
#define IS_RCC_HSE(HSE) (((HSE) == RCC_HSE_OFF) || ((HSE) == RCC_HSE_ON) || \
((HSE) == RCC_HSE_Bypass))
/**
* @}
*/
/** @defgroup RCC_PLL_Clock_Source
* @{
*/
#define RCC_PLLSource_HSI_Div2 RCC_CFGR_PLLSRC_HSI_Div2
#define RCC_PLLSource_PREDIV1 RCC_CFGR_PLLSRC_HSE_PREDIV /* Old HSEPREDIV1 bit definition, maintained for legacy purpose */
#define RCC_PLLSource_HSE RCC_CFGR_PLLSRC_HSE_PREDIV /*!< Only applicable for STM32F072 devices */
#define RCC_PLLSource_HSI48 RCC_CFGR_PLLSRC_HSI48_PREDIV /*!< Only applicable for STM32F072 devices */
#define RCC_PLLSource_HSI RCC_CFGR_PLLSRC_HSI_PREDIV /*!< Only applicable for STM32F072 devices */
#define IS_RCC_PLL_SOURCE(SOURCE) (((SOURCE) == RCC_PLLSource_HSI_Div2) || \
((SOURCE) == RCC_PLLSource_HSI48) || \
((SOURCE) == RCC_PLLSource_HSI) || \
((SOURCE) == RCC_PLLSource_HSE) || \
((SOURCE) == RCC_PLLSource_PREDIV1))
/**
* @}
*/
/** @defgroup RCC_PLL_Multiplication_Factor
* @{
*/
#define RCC_PLLMul_2 RCC_CFGR_PLLMULL2
#define RCC_PLLMul_3 RCC_CFGR_PLLMULL3
#define RCC_PLLMul_4 RCC_CFGR_PLLMULL4
#define RCC_PLLMul_5 RCC_CFGR_PLLMULL5
#define RCC_PLLMul_6 RCC_CFGR_PLLMULL6
#define RCC_PLLMul_7 RCC_CFGR_PLLMULL7
#define RCC_PLLMul_8 RCC_CFGR_PLLMULL8
#define RCC_PLLMul_9 RCC_CFGR_PLLMULL9
#define RCC_PLLMul_10 RCC_CFGR_PLLMULL10
#define RCC_PLLMul_11 RCC_CFGR_PLLMULL11
#define RCC_PLLMul_12 RCC_CFGR_PLLMULL12
#define RCC_PLLMul_13 RCC_CFGR_PLLMULL13
#define RCC_PLLMul_14 RCC_CFGR_PLLMULL14
#define RCC_PLLMul_15 RCC_CFGR_PLLMULL15
#define RCC_PLLMul_16 RCC_CFGR_PLLMULL16
#define IS_RCC_PLL_MUL(MUL) (((MUL) == RCC_PLLMul_2) || ((MUL) == RCC_PLLMul_3) || \
((MUL) == RCC_PLLMul_4) || ((MUL) == RCC_PLLMul_5) || \
((MUL) == RCC_PLLMul_6) || ((MUL) == RCC_PLLMul_7) || \
((MUL) == RCC_PLLMul_8) || ((MUL) == RCC_PLLMul_9) || \
((MUL) == RCC_PLLMul_10) || ((MUL) == RCC_PLLMul_11) || \
((MUL) == RCC_PLLMul_12) || ((MUL) == RCC_PLLMul_13) || \
((MUL) == RCC_PLLMul_14) || ((MUL) == RCC_PLLMul_15) || \
((MUL) == RCC_PLLMul_16))
/**
* @}
*/
/** @defgroup RCC_PREDIV1_division_factor
* @{
*/
#define RCC_PREDIV1_Div1 RCC_CFGR2_PREDIV1_DIV1
#define RCC_PREDIV1_Div2 RCC_CFGR2_PREDIV1_DIV2
#define RCC_PREDIV1_Div3 RCC_CFGR2_PREDIV1_DIV3
#define RCC_PREDIV1_Div4 RCC_CFGR2_PREDIV1_DIV4
#define RCC_PREDIV1_Div5 RCC_CFGR2_PREDIV1_DIV5
#define RCC_PREDIV1_Div6 RCC_CFGR2_PREDIV1_DIV6
#define RCC_PREDIV1_Div7 RCC_CFGR2_PREDIV1_DIV7
#define RCC_PREDIV1_Div8 RCC_CFGR2_PREDIV1_DIV8
#define RCC_PREDIV1_Div9 RCC_CFGR2_PREDIV1_DIV9
#define RCC_PREDIV1_Div10 RCC_CFGR2_PREDIV1_DIV10
#define RCC_PREDIV1_Div11 RCC_CFGR2_PREDIV1_DIV11
#define RCC_PREDIV1_Div12 RCC_CFGR2_PREDIV1_DIV12
#define RCC_PREDIV1_Div13 RCC_CFGR2_PREDIV1_DIV13
#define RCC_PREDIV1_Div14 RCC_CFGR2_PREDIV1_DIV14
#define RCC_PREDIV1_Div15 RCC_CFGR2_PREDIV1_DIV15
#define RCC_PREDIV1_Div16 RCC_CFGR2_PREDIV1_DIV16
#define IS_RCC_PREDIV1(PREDIV1) (((PREDIV1) == RCC_PREDIV1_Div1) || ((PREDIV1) == RCC_PREDIV1_Div2) || \
((PREDIV1) == RCC_PREDIV1_Div3) || ((PREDIV1) == RCC_PREDIV1_Div4) || \
((PREDIV1) == RCC_PREDIV1_Div5) || ((PREDIV1) == RCC_PREDIV1_Div6) || \
((PREDIV1) == RCC_PREDIV1_Div7) || ((PREDIV1) == RCC_PREDIV1_Div8) || \
((PREDIV1) == RCC_PREDIV1_Div9) || ((PREDIV1) == RCC_PREDIV1_Div10) || \
((PREDIV1) == RCC_PREDIV1_Div11) || ((PREDIV1) == RCC_PREDIV1_Div12) || \
((PREDIV1) == RCC_PREDIV1_Div13) || ((PREDIV1) == RCC_PREDIV1_Div14) || \
((PREDIV1) == RCC_PREDIV1_Div15) || ((PREDIV1) == RCC_PREDIV1_Div16))
/**
* @}
*/
/** @defgroup RCC_System_Clock_Source
* @{
*/
#define RCC_SYSCLKSource_HSI RCC_CFGR_SW_HSI
#define RCC_SYSCLKSource_HSE RCC_CFGR_SW_HSE
#define RCC_SYSCLKSource_PLLCLK RCC_CFGR_SW_PLL
#define RCC_SYSCLKSource_HSI48 RCC_CFGR_SW_HSI48 /*!< Only applicable for STM32F072 devices */
#define IS_RCC_SYSCLK_SOURCE(SOURCE) (((SOURCE) == RCC_SYSCLKSource_HSI) || \
((SOURCE) == RCC_SYSCLKSource_HSE) || \
((SOURCE) == RCC_SYSCLKSource_HSI48) || \
((SOURCE) == RCC_SYSCLKSource_PLLCLK))
/**
* @}
*/
/** @defgroup RCC_AHB_Clock_Source
* @{
*/
#define RCC_SYSCLK_Div1 RCC_CFGR_HPRE_DIV1
#define RCC_SYSCLK_Div2 RCC_CFGR_HPRE_DIV2
#define RCC_SYSCLK_Div4 RCC_CFGR_HPRE_DIV4
#define RCC_SYSCLK_Div8 RCC_CFGR_HPRE_DIV8
#define RCC_SYSCLK_Div16 RCC_CFGR_HPRE_DIV16
#define RCC_SYSCLK_Div64 RCC_CFGR_HPRE_DIV64
#define RCC_SYSCLK_Div128 RCC_CFGR_HPRE_DIV128
#define RCC_SYSCLK_Div256 RCC_CFGR_HPRE_DIV256
#define RCC_SYSCLK_Div512 RCC_CFGR_HPRE_DIV512
#define IS_RCC_HCLK(HCLK) (((HCLK) == RCC_SYSCLK_Div1) || ((HCLK) == RCC_SYSCLK_Div2) || \
((HCLK) == RCC_SYSCLK_Div4) || ((HCLK) == RCC_SYSCLK_Div8) || \
((HCLK) == RCC_SYSCLK_Div16) || ((HCLK) == RCC_SYSCLK_Div64) || \
((HCLK) == RCC_SYSCLK_Div128) || ((HCLK) == RCC_SYSCLK_Div256) || \
((HCLK) == RCC_SYSCLK_Div512))
/**
* @}
*/
/** @defgroup RCC_APB_Clock_Source
* @{
*/
#define RCC_HCLK_Div1 RCC_CFGR_PPRE_DIV1
#define RCC_HCLK_Div2 RCC_CFGR_PPRE_DIV2
#define RCC_HCLK_Div4 RCC_CFGR_PPRE_DIV4
#define RCC_HCLK_Div8 RCC_CFGR_PPRE_DIV8
#define RCC_HCLK_Div16 RCC_CFGR_PPRE_DIV16
#define IS_RCC_PCLK(PCLK) (((PCLK) == RCC_HCLK_Div1) || ((PCLK) == RCC_HCLK_Div2) || \
((PCLK) == RCC_HCLK_Div4) || ((PCLK) == RCC_HCLK_Div8) || \
((PCLK) == RCC_HCLK_Div16))
/**
* @}
*/
/** @defgroup RCC_ADC_clock_source
* @{
*/
/* These defines are obsolete and kept for legacy purpose only.
Proper ADC clock selection is done within ADC driver by mean of the ADC_ClockModeConfig() function */
#define RCC_ADCCLK_HSI14 ((uint32_t)0x00000000)
#define RCC_ADCCLK_PCLK_Div2 ((uint32_t)0x01000000)
#define RCC_ADCCLK_PCLK_Div4 ((uint32_t)0x01004000)
#define IS_RCC_ADCCLK(ADCCLK) (((ADCCLK) == RCC_ADCCLK_HSI14) || ((ADCCLK) == RCC_ADCCLK_PCLK_Div2) || \
((ADCCLK) == RCC_ADCCLK_PCLK_Div4))
/**
* @}
*/
/** @defgroup RCC_CEC_clock_source
* @{
*/
#define RCC_CECCLK_HSI_Div244 ((uint32_t)0x00000000)
#define RCC_CECCLK_LSE RCC_CFGR3_CECSW
#define IS_RCC_CECCLK(CECCLK) (((CECCLK) == RCC_CECCLK_HSI_Div244) || ((CECCLK) == RCC_CECCLK_LSE))
/**
* @}
*/
/** @defgroup RCC_I2C_clock_source
* @{
*/
#define RCC_I2C1CLK_HSI ((uint32_t)0x00000000)
#define RCC_I2C1CLK_SYSCLK RCC_CFGR3_I2C1SW
#define IS_RCC_I2CCLK(I2CCLK) (((I2CCLK) == RCC_I2C1CLK_HSI) || ((I2CCLK) == RCC_I2C1CLK_SYSCLK))
/**
* @}
*/
/** @defgroup RCC_USB_clock_source
* @brief Applicable only for STM32F072 devices
* @{
*/
#define RCC_USBCLK_HSI48 ((uint32_t)0x00000000)
#define RCC_USBCLK_PLLCLK RCC_CFGR3_USBSW
#define IS_RCC_USBCLK(USBCLK) (((USBCLK) == RCC_USBCLK_HSI48) || ((USBCLK) == RCC_USBCLK_PLLCLK))
/**
* @}
*/
/** @defgroup RCC_USART_clock_source
* @{
*/
#define RCC_USART1CLK_PCLK ((uint32_t)0x10000000)
#define RCC_USART1CLK_SYSCLK ((uint32_t)0x10000001)
#define RCC_USART1CLK_LSE ((uint32_t)0x10000002)
#define RCC_USART1CLK_HSI ((uint32_t)0x10000003)
#define RCC_USART2CLK_PCLK ((uint32_t)0x20000000) /*!< Only applicable for STM32F072 devices */
#define RCC_USART2CLK_SYSCLK ((uint32_t)0x20010000) /*!< Only applicable for STM32F072 devices */
#define RCC_USART2CLK_LSE ((uint32_t)0x20020000) /*!< Only applicable for STM32F072 devices */
#define RCC_USART2CLK_HSI ((uint32_t)0x20030000) /*!< Only applicable for STM32F072 devices */
#define IS_RCC_USARTCLK(USARTCLK) (((USARTCLK) == RCC_USART1CLK_PCLK) || \
((USARTCLK) == RCC_USART1CLK_SYSCLK) || \
((USARTCLK) == RCC_USART1CLK_LSE) || \
((USARTCLK) == RCC_USART1CLK_HSI) || \
((USARTCLK) == RCC_USART2CLK_PCLK) || \
((USARTCLK) == RCC_USART2CLK_SYSCLK) || \
((USARTCLK) == RCC_USART2CLK_LSE) || \
((USARTCLK) == RCC_USART2CLK_HSI))
/**
* @}
*/
/** @defgroup RCC_Interrupt_Source
* @{
*/
#define RCC_IT_LSIRDY ((uint8_t)0x01)
#define RCC_IT_LSERDY ((uint8_t)0x02)
#define RCC_IT_HSIRDY ((uint8_t)0x04)
#define RCC_IT_HSERDY ((uint8_t)0x08)
#define RCC_IT_PLLRDY ((uint8_t)0x10)
#define RCC_IT_HSI14RDY ((uint8_t)0x20)
#define RCC_IT_HSI48RDY ((uint8_t)0x40) /*!< Only applicable for STM32F072 devices */
#define RCC_IT_CSS ((uint8_t)0x80)
#define IS_RCC_IT(IT) ((((IT) & (uint8_t)0x80) == 0x00) && ((IT) != 0x00))
#define IS_RCC_GET_IT(IT) (((IT) == RCC_IT_LSIRDY) || ((IT) == RCC_IT_LSERDY) || \
((IT) == RCC_IT_HSIRDY) || ((IT) == RCC_IT_HSERDY) || \
((IT) == RCC_IT_PLLRDY) || ((IT) == RCC_IT_HSI14RDY) || \
((IT) == RCC_IT_CSS) || ((IT) == RCC_IT_HSI48RDY))
#define IS_RCC_CLEAR_IT(IT) ((IT) != 0x00)
/**
* @}
*/
/** @defgroup RCC_LSE_Configuration
* @{
*/
#define RCC_LSE_OFF ((uint32_t)0x00000000)
#define RCC_LSE_ON RCC_BDCR_LSEON
#define RCC_LSE_Bypass ((uint32_t)(RCC_BDCR_LSEON | RCC_BDCR_LSEBYP))
#define IS_RCC_LSE(LSE) (((LSE) == RCC_LSE_OFF) || ((LSE) == RCC_LSE_ON) || \
((LSE) == RCC_LSE_Bypass))
/**
* @}
*/
/** @defgroup RCC_RTC_Clock_Source
* @{
*/
#define RCC_RTCCLKSource_LSE RCC_BDCR_RTCSEL_LSE
#define RCC_RTCCLKSource_LSI RCC_BDCR_RTCSEL_LSI
#define RCC_RTCCLKSource_HSE_Div32 RCC_BDCR_RTCSEL_HSE
#define IS_RCC_RTCCLK_SOURCE(SOURCE) (((SOURCE) == RCC_RTCCLKSource_LSE) || \
((SOURCE) == RCC_RTCCLKSource_LSI) || \
((SOURCE) == RCC_RTCCLKSource_HSE_Div32))
/**
* @}
*/
/** @defgroup RCC_LSE_Drive_Configuration
* @{
*/
#define RCC_LSEDrive_Low ((uint32_t)0x00000000)
#define RCC_LSEDrive_MediumLow RCC_BDCR_LSEDRV_0
#define RCC_LSEDrive_MediumHigh RCC_BDCR_LSEDRV_1
#define RCC_LSEDrive_High RCC_BDCR_LSEDRV
#define IS_RCC_LSE_DRIVE(DRIVE) (((DRIVE) == RCC_LSEDrive_Low) || ((DRIVE) == RCC_LSEDrive_MediumLow) || \
((DRIVE) == RCC_LSEDrive_MediumHigh) || ((DRIVE) == RCC_LSEDrive_High))
/**
* @}
*/
/** @defgroup RCC_AHB_Peripherals
* @{
*/
#define RCC_AHBPeriph_GPIOA RCC_AHBENR_GPIOAEN
#define RCC_AHBPeriph_GPIOB RCC_AHBENR_GPIOBEN
#define RCC_AHBPeriph_GPIOC RCC_AHBENR_GPIOCEN
#define RCC_AHBPeriph_GPIOD RCC_AHBENR_GPIODEN
#define RCC_AHBPeriph_GPIOE RCC_AHBENR_GPIOEEN /*!< Only applicable for STM32F072 devices */
#define RCC_AHBPeriph_GPIOF RCC_AHBENR_GPIOFEN
#define RCC_AHBPeriph_TS RCC_AHBENR_TSEN
#define RCC_AHBPeriph_CRC RCC_AHBENR_CRCEN
#define RCC_AHBPeriph_FLITF RCC_AHBENR_FLITFEN
#define RCC_AHBPeriph_SRAM RCC_AHBENR_SRAMEN
#define RCC_AHBPeriph_DMA1 RCC_AHBENR_DMA1EN
#define IS_RCC_AHB_PERIPH(PERIPH) ((((PERIPH) & 0xFE81FFAA) == 0x00) && ((PERIPH) != 0x00))
#define IS_RCC_AHB_RST_PERIPH(PERIPH) ((((PERIPH) & 0xFE81FFFF) == 0x00) && ((PERIPH) != 0x00))
/**
* @}
*/
/** @defgroup RCC_APB2_Peripherals
* @{
*/
#define RCC_APB2Periph_SYSCFG RCC_APB2ENR_SYSCFGEN
#define RCC_APB2Periph_ADC1 RCC_APB2ENR_ADC1EN
#define RCC_APB2Periph_TIM1 RCC_APB2ENR_TIM1EN
#define RCC_APB2Periph_SPI1 RCC_APB2ENR_SPI1EN
#define RCC_APB2Periph_USART1 RCC_APB2ENR_USART1EN
#define RCC_APB2Periph_TIM15 RCC_APB2ENR_TIM15EN
#define RCC_APB2Periph_TIM16 RCC_APB2ENR_TIM16EN
#define RCC_APB2Periph_TIM17 RCC_APB2ENR_TIM17EN
#define RCC_APB2Periph_DBGMCU RCC_APB2ENR_DBGMCUEN
#define IS_RCC_APB2_PERIPH(PERIPH) ((((PERIPH) & 0xFFB8A5FE) == 0x00) && ((PERIPH) != 0x00))
/**
* @}
*/
/** @defgroup RCC_APB1_Peripherals
* @{
*/
#define RCC_APB1Periph_TIM2 RCC_APB1ENR_TIM2EN /*!< Only applicable for STM32F051 and STM32F072 devices */
#define RCC_APB1Periph_TIM3 RCC_APB1ENR_TIM3EN
#define RCC_APB1Periph_TIM6 RCC_APB1ENR_TIM6EN
#define RCC_APB1Periph_TIM7 RCC_APB1ENR_TIM7EN /*!< Only applicable for STM32F072 devices */
#define RCC_APB1Periph_TIM14 RCC_APB1ENR_TIM14EN
#define RCC_APB1Periph_WWDG RCC_APB1ENR_WWDGEN
#define RCC_APB1Periph_SPI2 RCC_APB1ENR_SPI2EN
#define RCC_APB1Periph_USART2 RCC_APB1ENR_USART2EN
#define RCC_APB1Periph_USART3 RCC_APB1ENR_USART3EN /*!< Only applicable for STM32F072 devices */
#define RCC_APB1Periph_USART4 RCC_APB1ENR_USART4EN /*!< Only applicable for STM32F072 devices */
#define RCC_APB1Periph_I2C1 RCC_APB1ENR_I2C1EN
#define RCC_APB1Periph_I2C2 RCC_APB1ENR_I2C2EN
#define RCC_APB1Periph_USB RCC_APB1ENR_USBEN /*!< Only applicable for STM32F072 and STM32F042 devices */
#define RCC_APB1Periph_CAN RCC_APB1ENR_CANEN /*!< Only applicable for STM32F072 and STM32F042 devices */
#define RCC_APB1Periph_CRS RCC_APB1ENR_CRSEN /*!< Only applicable for STM32F072 and STM32F042 devices*/
#define RCC_APB1Periph_PWR RCC_APB1ENR_PWREN
#define RCC_APB1Periph_DAC RCC_APB1ENR_DACEN /*!< Only applicable for STM32F051 and STM32F072 devices */
#define RCC_APB1Periph_CEC RCC_APB1ENR_CECEN /*!< Only applicable for STM32F051, STM32F042 and STM32F072 devices */
#define IS_RCC_APB1_PERIPH(PERIPH) ((((PERIPH) & 0x8511B6CC) == 0x00) && ((PERIPH) != 0x00))
/**
* @}
*/
/** @defgroup RCC_MCO_Clock_Source
* @{
*/
#define RCC_MCOSource_NoClock ((uint8_t)0x00)
#define RCC_MCOSource_HSI14 ((uint8_t)0x01)
#define RCC_MCOSource_LSI ((uint8_t)0x02)
#define RCC_MCOSource_LSE ((uint8_t)0x03)
#define RCC_MCOSource_SYSCLK ((uint8_t)0x04)
#define RCC_MCOSource_HSI ((uint8_t)0x05)
#define RCC_MCOSource_HSE ((uint8_t)0x06)
#define RCC_MCOSource_PLLCLK_Div2 ((uint8_t)0x07)
#define RCC_MCOSource_HSI48 ((uint8_t)0x08) /*!< Only applicable for STM32F072 devices */
#define RCC_MCOSource_PLLCLK ((uint8_t)0x87)
#define IS_RCC_MCO_SOURCE(SOURCE) (((SOURCE) == RCC_MCOSource_NoClock) || ((SOURCE) == RCC_MCOSource_HSI14) || \
((SOURCE) == RCC_MCOSource_SYSCLK) || ((SOURCE) == RCC_MCOSource_HSI) || \
((SOURCE) == RCC_MCOSource_HSE) || ((SOURCE) == RCC_MCOSource_PLLCLK_Div2)|| \
((SOURCE) == RCC_MCOSource_LSI) || ((SOURCE) == RCC_MCOSource_HSI48) || \
((SOURCE) == RCC_MCOSource_PLLCLK) || ((SOURCE) == RCC_MCOSource_LSE))
/**
* @}
*/
/** @defgroup RCC_MCOPrescaler
* @{
*/
#if !defined (STM32F051)
#define RCC_MCOPrescaler_1 RCC_CFGR_MCO_PRE_1
#define RCC_MCOPrescaler_2 RCC_CFGR_MCO_PRE_2
#define RCC_MCOPrescaler_4 RCC_CFGR_MCO_PRE_4
#define RCC_MCOPrescaler_8 RCC_CFGR_MCO_PRE_8
#define RCC_MCOPrescaler_16 RCC_CFGR_MCO_PRE_16
#define RCC_MCOPrescaler_32 RCC_CFGR_MCO_PRE_32
#define RCC_MCOPrescaler_64 RCC_CFGR_MCO_PRE_64
#define RCC_MCOPrescaler_128 RCC_CFGR_MCO_PRE_128
#define IS_RCC_MCO_PRESCALER(PRESCALER) (((PRESCALER) == RCC_MCOPrescaler_1) || \
((PRESCALER) == RCC_MCOPrescaler_2) || \
((PRESCALER) == RCC_MCOPrescaler_4) || \
((PRESCALER) == RCC_MCOPrescaler_8) || \
((PRESCALER) == RCC_MCOPrescaler_16) || \
((PRESCALER) == RCC_MCOPrescaler_32) || \
((PRESCALER) == RCC_MCOPrescaler_64) || \
((PRESCALER) == RCC_MCOPrescaler_128))
#endif /* STM32F051 */
/**
* @}
*/
/** @defgroup RCC_Flag
* @{
*/
#define RCC_FLAG_HSIRDY ((uint8_t)0x01)
#define RCC_FLAG_HSERDY ((uint8_t)0x11)
#define RCC_FLAG_PLLRDY ((uint8_t)0x19)
#define RCC_FLAG_LSERDY ((uint8_t)0x21)
#define RCC_FLAG_LSIRDY ((uint8_t)0x41)
#define RCC_FLAG_V18PWRRSTF ((uint8_t)0x57)
#define RCC_FLAG_OBLRST ((uint8_t)0x59)
#define RCC_FLAG_PINRST ((uint8_t)0x5A)
#define RCC_FLAG_PORRST ((uint8_t)0x5B)
#define RCC_FLAG_SFTRST ((uint8_t)0x5C)
#define RCC_FLAG_IWDGRST ((uint8_t)0x5D)
#define RCC_FLAG_WWDGRST ((uint8_t)0x5E)
#define RCC_FLAG_LPWRRST ((uint8_t)0x5F)
#define RCC_FLAG_HSI14RDY ((uint8_t)0x61)
#define RCC_FLAG_HSI48RDY ((uint8_t)0x71) /*!< Only applicable for STM32F072 devices */
#define IS_RCC_FLAG(FLAG) (((FLAG) == RCC_FLAG_HSIRDY) || ((FLAG) == RCC_FLAG_HSERDY) || \
((FLAG) == RCC_FLAG_PLLRDY) || ((FLAG) == RCC_FLAG_LSERDY) || \
((FLAG) == RCC_FLAG_LSIRDY) || ((FLAG) == RCC_FLAG_OBLRST) || \
((FLAG) == RCC_FLAG_PINRST) || ((FLAG) == RCC_FLAG_PORRST) || \
((FLAG) == RCC_FLAG_SFTRST) || ((FLAG) == RCC_FLAG_IWDGRST) || \
((FLAG) == RCC_FLAG_WWDGRST) || ((FLAG) == RCC_FLAG_LPWRRST) || \
((FLAG) == RCC_FLAG_HSI14RDY)|| ((FLAG) == RCC_FLAG_HSI48RDY)|| \
((FLAG) == RCC_FLAG_V18PWRRSTF))
#define IS_RCC_HSI_CALIBRATION_VALUE(VALUE) ((VALUE) <= 0x1F)
#define IS_RCC_HSI14_CALIBRATION_VALUE(VALUE) ((VALUE) <= 0x1F)
/**
* @}
*/
/**
* @}
*/
/* Exported macro ------------------------------------------------------------*/
/* Exported functions ------------------------------------------------------- */
/* Function used to set the RCC clock configuration to the default reset state */
void RCC_DeInit(void);
/* Internal/external clocks, PLL, CSS and MCO configuration functions *********/
void RCC_HSEConfig(uint8_t RCC_HSE);
ErrorStatus RCC_WaitForHSEStartUp(void);
void RCC_AdjustHSICalibrationValue(uint8_t HSICalibrationValue);
void RCC_HSICmd(FunctionalState NewState);
void RCC_AdjustHSI14CalibrationValue(uint8_t HSI14CalibrationValue);
void RCC_HSI14Cmd(FunctionalState NewState);
void RCC_HSI14ADCRequestCmd(FunctionalState NewState);
void RCC_LSEConfig(uint32_t RCC_LSE);
void RCC_LSEDriveConfig(uint32_t RCC_LSEDrive);
void RCC_LSICmd(FunctionalState NewState);
void RCC_PLLConfig(uint32_t RCC_PLLSource, uint32_t RCC_PLLMul);
void RCC_PLLCmd(FunctionalState NewState);
void RCC_HSI48Cmd(FunctionalState NewState); /*!< Only applicable for STM32F072 devices */
uint32_t RCC_GetHSI48CalibrationValue(void); /*!< Only applicable for STM32F072 devices */
void RCC_PREDIV1Config(uint32_t RCC_PREDIV1_Div);
void RCC_ClockSecuritySystemCmd(FunctionalState NewState);
#ifdef STM32F051
void RCC_MCOConfig(uint8_t RCC_MCOSource);
#else
void RCC_MCOConfig(uint8_t RCC_MCOSource,uint32_t RCC_MCOPrescaler);
#endif /* STM32F051 */
/* System, AHB and APB busses clocks configuration functions ******************/
void RCC_SYSCLKConfig(uint32_t RCC_SYSCLKSource);
uint8_t RCC_GetSYSCLKSource(void);
void RCC_HCLKConfig(uint32_t RCC_SYSCLK);
void RCC_PCLKConfig(uint32_t RCC_HCLK);
void RCC_ADCCLKConfig(uint32_t RCC_ADCCLK); /* This function is obsolete.
For proper ADC clock selection, refer to
ADC_ClockModeConfig() in the ADC driver */
void RCC_CECCLKConfig(uint32_t RCC_CECCLK);
void RCC_I2CCLKConfig(uint32_t RCC_I2CCLK);
void RCC_USARTCLKConfig(uint32_t RCC_USARTCLK);
void RCC_USBCLKConfig(uint32_t RCC_USBCLK); /*!< Only applicable for STM32F042 and STM32F072 devices */
void RCC_GetClocksFreq(RCC_ClocksTypeDef* RCC_Clocks);
/* Peripheral clocks configuration functions **********************************/
void RCC_RTCCLKConfig(uint32_t RCC_RTCCLKSource);
void RCC_RTCCLKCmd(FunctionalState NewState);
void RCC_BackupResetCmd(FunctionalState NewState);
void RCC_AHBPeriphClockCmd(uint32_t RCC_AHBPeriph, FunctionalState NewState);
void RCC_APB2PeriphClockCmd(uint32_t RCC_APB2Periph, FunctionalState NewState);
void RCC_APB1PeriphClockCmd(uint32_t RCC_APB1Periph, FunctionalState NewState);
void RCC_AHBPeriphResetCmd(uint32_t RCC_AHBPeriph, FunctionalState NewState);
void RCC_APB2PeriphResetCmd(uint32_t RCC_APB2Periph, FunctionalState NewState);
void RCC_APB1PeriphResetCmd(uint32_t RCC_APB1Periph, FunctionalState NewState);
/* Interrupts and flags management functions **********************************/
void RCC_ITConfig(uint8_t RCC_IT, FunctionalState NewState);
FlagStatus RCC_GetFlagStatus(uint8_t RCC_FLAG);
void RCC_ClearFlag(void);
ITStatus RCC_GetITStatus(uint8_t RCC_IT);
void RCC_ClearITPendingBit(uint8_t RCC_IT);
#ifdef __cplusplus
}
#endif
#endif /* __STM32F0XX_RCC_H */
/**
* @}
*/
/**
* @}
*/
/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/

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/**
******************************************************************************
* @file stm32f0xx_rtc.h
* @author MCD Application Team
* @version V1.3.0
* @date 16-January-2014
* @brief This file contains all the functions prototypes for the RTC firmware
* library.
******************************************************************************
* @attention
*
* <h2><center>&copy; COPYRIGHT(c) 2014 STMicroelectronics</center></h2>
*
* Redistribution and use in source and binary forms, with or without modification,
* are permitted provided that the following conditions are met:
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
* 3. Neither the name of STMicroelectronics nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
******************************************************************************
*/
/* Define to prevent recursive inclusion -------------------------------------*/
#ifndef __STM32F0XX_RTC_H
#define __STM32F0XX_RTC_H
#ifdef __cplusplus
extern "C" {
#endif
/* Includes ------------------------------------------------------------------*/
#include "stm32f0xx.h"
/** @addtogroup STM32F0xx_StdPeriph_Driver
* @{
*/
/** @addtogroup RTC
* @{
*/
/* Exported types ------------------------------------------------------------*/
/**
* @brief RTC Init structures definition
*/
typedef struct
{
uint32_t RTC_HourFormat; /*!< Specifies the RTC Hour Format.
This parameter can be a value of @ref RTC_Hour_Formats */
uint32_t RTC_AsynchPrediv; /*!< Specifies the RTC Asynchronous Predivider value.
This parameter must be set to a value lower than 0x7F */
uint32_t RTC_SynchPrediv; /*!< Specifies the RTC Synchronous Predivider value.
This parameter must be set to a value lower than 0x1FFF */
}RTC_InitTypeDef;
/**
* @brief RTC Time structure definition
*/
typedef struct
{
uint8_t RTC_Hours; /*!< Specifies the RTC Time Hour.
This parameter must be set to a value in the 0-12 range
if the RTC_HourFormat_12 is selected or 0-23 range if
the RTC_HourFormat_24 is selected. */
uint8_t RTC_Minutes; /*!< Specifies the RTC Time Minutes.
This parameter must be set to a value in the 0-59 range. */
uint8_t RTC_Seconds; /*!< Specifies the RTC Time Seconds.
This parameter must be set to a value in the 0-59 range. */
uint8_t RTC_H12; /*!< Specifies the RTC AM/PM Time.
This parameter can be a value of @ref RTC_AM_PM_Definitions */
}RTC_TimeTypeDef;
/**
* @brief RTC Date structure definition
*/
typedef struct
{
uint8_t RTC_WeekDay; /*!< Specifies the RTC Date WeekDay.
This parameter can be a value of @ref RTC_WeekDay_Definitions */
uint8_t RTC_Month; /*!< Specifies the RTC Date Month.
This parameter can be a value of @ref RTC_Month_Date_Definitions */
uint8_t RTC_Date; /*!< Specifies the RTC Date.
This parameter must be set to a value in the 1-31 range. */
uint8_t RTC_Year; /*!< Specifies the RTC Date Year.
This parameter must be set to a value in the 0-99 range. */
}RTC_DateTypeDef;
/**
* @brief RTC Alarm structure definition
*/
typedef struct
{
RTC_TimeTypeDef RTC_AlarmTime; /*!< Specifies the RTC Alarm Time members. */
uint32_t RTC_AlarmMask; /*!< Specifies the RTC Alarm Masks.
This parameter can be a value of @ref RTC_AlarmMask_Definitions */
uint32_t RTC_AlarmDateWeekDaySel; /*!< Specifies the RTC Alarm is on Date or WeekDay.
This parameter can be a value of @ref RTC_AlarmDateWeekDay_Definitions */
uint8_t RTC_AlarmDateWeekDay; /*!< Specifies the RTC Alarm Date/WeekDay.
This parameter must be set to a value in the 1-31 range
if the Alarm Date is selected.
This parameter can be a value of @ref RTC_WeekDay_Definitions
if the Alarm WeekDay is selected. */
}RTC_AlarmTypeDef;
/* Exported constants --------------------------------------------------------*/
/** @defgroup RTC_Exported_Constants
* @{
*/
/** @defgroup RTC_Hour_Formats
* @{
*/
#define RTC_HourFormat_24 ((uint32_t)0x00000000)
#define RTC_HourFormat_12 ((uint32_t)0x00000040)
#define IS_RTC_HOUR_FORMAT(FORMAT) (((FORMAT) == RTC_HourFormat_12) || \
((FORMAT) == RTC_HourFormat_24))
/**
* @}
*/
/** @defgroup RTC_Asynchronous_Predivider
* @{
*/
#define IS_RTC_ASYNCH_PREDIV(PREDIV) ((PREDIV) <= 0x7F)
/**
* @}
*/
/** @defgroup RTC_Synchronous_Predivider
* @{
*/
#define IS_RTC_SYNCH_PREDIV(PREDIV) ((PREDIV) <= 0x7FFF)
/**
* @}
*/
/** @defgroup RTC_Time_Definitions
* @{
*/
#define IS_RTC_HOUR12(HOUR) (((HOUR) > 0) && ((HOUR) <= 12))
#define IS_RTC_HOUR24(HOUR) ((HOUR) <= 23)
#define IS_RTC_MINUTES(MINUTES) ((MINUTES) <= 59)
#define IS_RTC_SECONDS(SECONDS) ((SECONDS) <= 59)
/**
* @}
*/
/** @defgroup RTC_AM_PM_Definitions
* @{
*/
#define RTC_H12_AM ((uint8_t)0x00)
#define RTC_H12_PM ((uint8_t)0x40)
#define IS_RTC_H12(PM) (((PM) == RTC_H12_AM) || ((PM) == RTC_H12_PM))
/**
* @}
*/
/** @defgroup RTC_Year_Date_Definitions
* @{
*/
#define IS_RTC_YEAR(YEAR) ((YEAR) <= 99)
/**
* @}
*/
/** @defgroup RTC_Month_Date_Definitions
* @{
*/
#define RTC_Month_January ((uint8_t)0x01)
#define RTC_Month_February ((uint8_t)0x02)
#define RTC_Month_March ((uint8_t)0x03)
#define RTC_Month_April ((uint8_t)0x04)
#define RTC_Month_May ((uint8_t)0x05)
#define RTC_Month_June ((uint8_t)0x06)
#define RTC_Month_July ((uint8_t)0x07)
#define RTC_Month_August ((uint8_t)0x08)
#define RTC_Month_September ((uint8_t)0x09)
#define RTC_Month_October ((uint8_t)0x10)
#define RTC_Month_November ((uint8_t)0x11)
#define RTC_Month_December ((uint8_t)0x12)
#define IS_RTC_MONTH(MONTH) (((MONTH) >= 1) && ((MONTH) <= 12))
#define IS_RTC_DATE(DATE) (((DATE) >= 1) && ((DATE) <= 31))
/**
* @}
*/
/** @defgroup RTC_WeekDay_Definitions
* @{
*/
#define RTC_Weekday_Monday ((uint8_t)0x01)
#define RTC_Weekday_Tuesday ((uint8_t)0x02)
#define RTC_Weekday_Wednesday ((uint8_t)0x03)
#define RTC_Weekday_Thursday ((uint8_t)0x04)
#define RTC_Weekday_Friday ((uint8_t)0x05)
#define RTC_Weekday_Saturday ((uint8_t)0x6)
#define RTC_Weekday_Sunday ((uint8_t)0x07)
#define IS_RTC_WEEKDAY(WEEKDAY) (((WEEKDAY) == RTC_Weekday_Monday) || \
((WEEKDAY) == RTC_Weekday_Tuesday) || \
((WEEKDAY) == RTC_Weekday_Wednesday) || \
((WEEKDAY) == RTC_Weekday_Thursday) || \
((WEEKDAY) == RTC_Weekday_Friday) || \
((WEEKDAY) == RTC_Weekday_Saturday) || \
((WEEKDAY) == RTC_Weekday_Sunday))
/**
* @}
*/
/** @defgroup RTC_Alarm_Definitions
* @{
*/
#define IS_RTC_ALARM_DATE_WEEKDAY_DATE(DATE) (((DATE) > 0) && ((DATE) <= 31))
#define IS_RTC_ALARM_DATE_WEEKDAY_WEEKDAY(WEEKDAY) (((WEEKDAY) == RTC_Weekday_Monday) || \
((WEEKDAY) == RTC_Weekday_Tuesday) || \
((WEEKDAY) == RTC_Weekday_Wednesday) || \
((WEEKDAY) == RTC_Weekday_Thursday) || \
((WEEKDAY) == RTC_Weekday_Friday) || \
((WEEKDAY) == RTC_Weekday_Saturday) || \
((WEEKDAY) == RTC_Weekday_Sunday))
/**
* @}
*/
/** @defgroup RTC_AlarmDateWeekDay_Definitions
* @{
*/
#define RTC_AlarmDateWeekDaySel_Date ((uint32_t)0x00000000)
#define RTC_AlarmDateWeekDaySel_WeekDay ((uint32_t)0x40000000)
#define IS_RTC_ALARM_DATE_WEEKDAY_SEL(SEL) (((SEL) == RTC_AlarmDateWeekDaySel_Date) || \
((SEL) == RTC_AlarmDateWeekDaySel_WeekDay))
/**
* @}
*/
/** @defgroup RTC_AlarmMask_Definitions
* @{
*/
#define RTC_AlarmMask_None ((uint32_t)0x00000000)
#define RTC_AlarmMask_DateWeekDay ((uint32_t)0x80000000)
#define RTC_AlarmMask_Hours ((uint32_t)0x00800000)
#define RTC_AlarmMask_Minutes ((uint32_t)0x00008000)
#define RTC_AlarmMask_Seconds ((uint32_t)0x00000080)
#define RTC_AlarmMask_All ((uint32_t)0x80808080)
#define IS_RTC_ALARM_MASK(MASK) (((MASK) & 0x7F7F7F7F) == (uint32_t)RESET)
/**
* @}
*/
/** @defgroup RTC_Alarms_Definitions
* @{
*/
#define RTC_Alarm_A ((uint32_t)0x00000100)
#define IS_RTC_ALARM(ALARM) ((ALARM) == RTC_Alarm_A)
#define IS_RTC_CMD_ALARM(ALARM) (((ALARM) & (RTC_Alarm_A)) != (uint32_t)RESET)
/**
* @}
*/
/** @defgroup RTC_Alarm_Sub_Seconds_Masks Definitions.
* @{
*/
#define RTC_AlarmSubSecondMask_All ((uint8_t)0x00) /*!< All Alarm SS fields are masked.
There is no comparison on sub seconds
for Alarm */
#define RTC_AlarmSubSecondMask_SS14_1 ((uint8_t)0x01) /*!< SS[14:1] are don't care in Alarm
comparison. Only SS[0] is compared. */
#define RTC_AlarmSubSecondMask_SS14_2 ((uint8_t)0x02) /*!< SS[14:2] are don't care in Alarm
comparison. Only SS[1:0] are compared */
#define RTC_AlarmSubSecondMask_SS14_3 ((uint8_t)0x03) /*!< SS[14:3] are don't care in Alarm
comparison. Only SS[2:0] are compared */
#define RTC_AlarmSubSecondMask_SS14_4 ((uint8_t)0x04) /*!< SS[14:4] are don't care in Alarm
comparison. Only SS[3:0] are compared */
#define RTC_AlarmSubSecondMask_SS14_5 ((uint8_t)0x05) /*!< SS[14:5] are don't care in Alarm
comparison. Only SS[4:0] are compared */
#define RTC_AlarmSubSecondMask_SS14_6 ((uint8_t)0x06) /*!< SS[14:6] are don't care in Alarm
comparison. Only SS[5:0] are compared */
#define RTC_AlarmSubSecondMask_SS14_7 ((uint8_t)0x07) /*!< SS[14:7] are don't care in Alarm
comparison. Only SS[6:0] are compared */
#define RTC_AlarmSubSecondMask_SS14_8 ((uint8_t)0x08) /*!< SS[14:8] are don't care in Alarm
comparison. Only SS[7:0] are compared */
#define RTC_AlarmSubSecondMask_SS14_9 ((uint8_t)0x09) /*!< SS[14:9] are don't care in Alarm
comparison. Only SS[8:0] are compared */
#define RTC_AlarmSubSecondMask_SS14_10 ((uint8_t)0x0A) /*!< SS[14:10] are don't care in Alarm
comparison. Only SS[9:0] are compared */
#define RTC_AlarmSubSecondMask_SS14_11 ((uint8_t)0x0B) /*!< SS[14:11] are don't care in Alarm
comparison. Only SS[10:0] are compared */
#define RTC_AlarmSubSecondMask_SS14_12 ((uint8_t)0x0C) /*!< SS[14:12] are don't care in Alarm
comparison.Only SS[11:0] are compared */
#define RTC_AlarmSubSecondMask_SS14_13 ((uint8_t)0x0D) /*!< SS[14:13] are don't care in Alarm
comparison. Only SS[12:0] are compared */
#define RTC_AlarmSubSecondMask_SS14 ((uint8_t)0x0E) /*!< SS[14] is don't care in Alarm
comparison.Only SS[13:0] are compared */
#define RTC_AlarmSubSecondMask_None ((uint8_t)0x0F) /*!< SS[14:0] are compared and must match
to activate alarm. */
#define IS_RTC_ALARM_SUB_SECOND_MASK(MASK) (((MASK) == RTC_AlarmSubSecondMask_All) || \
((MASK) == RTC_AlarmSubSecondMask_SS14_1) || \
((MASK) == RTC_AlarmSubSecondMask_SS14_2) || \
((MASK) == RTC_AlarmSubSecondMask_SS14_3) || \
((MASK) == RTC_AlarmSubSecondMask_SS14_4) || \
((MASK) == RTC_AlarmSubSecondMask_SS14_5) || \
((MASK) == RTC_AlarmSubSecondMask_SS14_6) || \
((MASK) == RTC_AlarmSubSecondMask_SS14_7) || \
((MASK) == RTC_AlarmSubSecondMask_SS14_8) || \
((MASK) == RTC_AlarmSubSecondMask_SS14_9) || \
((MASK) == RTC_AlarmSubSecondMask_SS14_10) || \
((MASK) == RTC_AlarmSubSecondMask_SS14_11) || \
((MASK) == RTC_AlarmSubSecondMask_SS14_12) || \
((MASK) == RTC_AlarmSubSecondMask_SS14_13) || \
((MASK) == RTC_AlarmSubSecondMask_SS14) || \
((MASK) == RTC_AlarmSubSecondMask_None))
/**
* @}
*/
/** @defgroup RTC_Alarm_Sub_Seconds_Value
* @{
*/
#define IS_RTC_ALARM_SUB_SECOND_VALUE(VALUE) ((VALUE) <= 0x00007FFF)
/**
* @}
*/
/** @defgroup RTC_Wakeup_Timer_Definitions
* @brief These parameters are only available for STM32F072 devices
* @{
*/
#define RTC_WakeUpClock_RTCCLK_Div16 ((uint32_t)0x00000000)
#define RTC_WakeUpClock_RTCCLK_Div8 ((uint32_t)0x00000001)
#define RTC_WakeUpClock_RTCCLK_Div4 ((uint32_t)0x00000002)
#define RTC_WakeUpClock_RTCCLK_Div2 ((uint32_t)0x00000003)
#define RTC_WakeUpClock_CK_SPRE_16bits ((uint32_t)0x00000004)
#define RTC_WakeUpClock_CK_SPRE_17bits ((uint32_t)0x00000006)
#define IS_RTC_WAKEUP_CLOCK(CLOCK) (((CLOCK) == RTC_WakeUpClock_RTCCLK_Div16) || \
((CLOCK) == RTC_WakeUpClock_RTCCLK_Div8) || \
((CLOCK) == RTC_WakeUpClock_RTCCLK_Div4) || \
((CLOCK) == RTC_WakeUpClock_RTCCLK_Div2) || \
((CLOCK) == RTC_WakeUpClock_CK_SPRE_16bits) || \
((CLOCK) == RTC_WakeUpClock_CK_SPRE_17bits))
#define IS_RTC_WAKEUP_COUNTER(COUNTER) ((COUNTER) <= 0xFFFF)
/**
* @}
*/
/** @defgroup RTC_Time_Stamp_Edges_definitions
* @{
*/
#define RTC_TimeStampEdge_Rising ((uint32_t)0x00000000)
#define RTC_TimeStampEdge_Falling ((uint32_t)0x00000008)
#define IS_RTC_TIMESTAMP_EDGE(EDGE) (((EDGE) == RTC_TimeStampEdge_Rising) || \
((EDGE) == RTC_TimeStampEdge_Falling))
/**
* @}
*/
/** @defgroup RTC_Output_selection_Definitions
* @{
*/
#define RTC_Output_Disable ((uint32_t)0x00000000)
#define RTC_Output_AlarmA ((uint32_t)0x00200000)
#define RTC_Output_WakeUp ((uint32_t)0x00600000) /*!< available only for STM32F072 devices */
#define IS_RTC_OUTPUT(OUTPUT) (((OUTPUT) == RTC_Output_Disable) || \
((OUTPUT) == RTC_Output_AlarmA) || \
((OUTPUT) == RTC_Output_WakeUp))
/**
* @}
*/
/** @defgroup RTC_Output_Polarity_Definitions
* @{
*/
#define RTC_OutputPolarity_High ((uint32_t)0x00000000)
#define RTC_OutputPolarity_Low ((uint32_t)0x00100000)
#define IS_RTC_OUTPUT_POL(POL) (((POL) == RTC_OutputPolarity_High) || \
((POL) == RTC_OutputPolarity_Low))
/**
* @}
*/
/** @defgroup RTC_Calib_Output_selection_Definitions
* @{
*/
#define RTC_CalibOutput_512Hz ((uint32_t)0x00000000)
#define RTC_CalibOutput_1Hz ((uint32_t)0x00080000)
#define IS_RTC_CALIB_OUTPUT(OUTPUT) (((OUTPUT) == RTC_CalibOutput_512Hz) || \
((OUTPUT) == RTC_CalibOutput_1Hz))
/**
* @}
*/
/** @defgroup RTC_Smooth_calib_period_Definitions
* @{
*/
#define RTC_SmoothCalibPeriod_32sec ((uint32_t)0x00000000) /*!< if RTCCLK = 32768 Hz, Smooth calibation
period is 32s, else 2exp20 RTCCLK seconds */
#define RTC_SmoothCalibPeriod_16sec ((uint32_t)0x00002000) /*!< if RTCCLK = 32768 Hz, Smooth calibation
period is 16s, else 2exp19 RTCCLK seconds */
#define RTC_SmoothCalibPeriod_8sec ((uint32_t)0x00004000) /*!< if RTCCLK = 32768 Hz, Smooth calibation
period is 8s, else 2exp18 RTCCLK seconds */
#define IS_RTC_SMOOTH_CALIB_PERIOD(PERIOD) (((PERIOD) == RTC_SmoothCalibPeriod_32sec) || \
((PERIOD) == RTC_SmoothCalibPeriod_16sec) || \
((PERIOD) == RTC_SmoothCalibPeriod_8sec))
/**
* @}
*/
/** @defgroup RTC_Smooth_calib_Plus_pulses_Definitions
* @{
*/
#define RTC_SmoothCalibPlusPulses_Set ((uint32_t)0x00008000) /*!< The number of RTCCLK pulses added
during a X -second window = Y - CALM[8:0].
with Y = 512, 256, 128 when X = 32, 16, 8 */
#define RTC_SmoothCalibPlusPulses_Reset ((uint32_t)0x00000000) /*!< The number of RTCCLK pulses subbstited
during a 32-second window = CALM[8:0]. */
#define IS_RTC_SMOOTH_CALIB_PLUS(PLUS) (((PLUS) == RTC_SmoothCalibPlusPulses_Set) || \
((PLUS) == RTC_SmoothCalibPlusPulses_Reset))
/**
* @}
*/
/** @defgroup RTC_Smooth_calib_Minus_pulses_Definitions
* @{
*/
#define IS_RTC_SMOOTH_CALIB_MINUS(VALUE) ((VALUE) <= 0x000001FF)
/**
* @}
*/
/** @defgroup RTC_DayLightSaving_Definitions
* @{
*/
#define RTC_DayLightSaving_SUB1H ((uint32_t)0x00020000)
#define RTC_DayLightSaving_ADD1H ((uint32_t)0x00010000)
#define IS_RTC_DAYLIGHT_SAVING(SAVING) (((SAVING) == RTC_DayLightSaving_SUB1H) || \
((SAVING) == RTC_DayLightSaving_ADD1H))
#define RTC_StoreOperation_Reset ((uint32_t)0x00000000)
#define RTC_StoreOperation_Set ((uint32_t)0x00040000)
#define IS_RTC_STORE_OPERATION(OPERATION) (((OPERATION) == RTC_StoreOperation_Reset) || \
((OPERATION) == RTC_StoreOperation_Set))
/**
* @}
*/
/** @defgroup RTC_Tamper_Trigger_Definitions
* @{
*/
#define RTC_TamperTrigger_RisingEdge ((uint32_t)0x00000000)
#define RTC_TamperTrigger_FallingEdge ((uint32_t)0x00000001)
#define RTC_TamperTrigger_LowLevel ((uint32_t)0x00000000)
#define RTC_TamperTrigger_HighLevel ((uint32_t)0x00000001)
#define IS_RTC_TAMPER_TRIGGER(TRIGGER) (((TRIGGER) == RTC_TamperTrigger_RisingEdge) || \
((TRIGGER) == RTC_TamperTrigger_FallingEdge) || \
((TRIGGER) == RTC_TamperTrigger_LowLevel) || \
((TRIGGER) == RTC_TamperTrigger_HighLevel))
/**
* @}
*/
/** @defgroup RTC_Tamper_Filter_Definitions
* @{
*/
#define RTC_TamperFilter_Disable ((uint32_t)0x00000000) /*!< Tamper filter is disabled */
#define RTC_TamperFilter_2Sample ((uint32_t)0x00000800) /*!< Tamper is activated after 2
consecutive samples at the active level */
#define RTC_TamperFilter_4Sample ((uint32_t)0x00001000) /*!< Tamper is activated after 4
consecutive samples at the active level */
#define RTC_TamperFilter_8Sample ((uint32_t)0x00001800) /*!< Tamper is activated after 8
consecutive samples at the active leve. */
#define IS_RTC_TAMPER_FILTER(FILTER) (((FILTER) == RTC_TamperFilter_Disable) || \
((FILTER) == RTC_TamperFilter_2Sample) || \
((FILTER) == RTC_TamperFilter_4Sample) || \
((FILTER) == RTC_TamperFilter_8Sample))
/**
* @}
*/
/** @defgroup RTC_Tamper_Sampling_Frequencies_Definitions
* @{
*/
#define RTC_TamperSamplingFreq_RTCCLK_Div32768 ((uint32_t)0x00000000) /*!< Each of the tamper inputs are sampled
with a frequency = RTCCLK / 32768 */
#define RTC_TamperSamplingFreq_RTCCLK_Div16384 ((uint32_t)0x00000100) /*!< Each of the tamper inputs are sampled
with a frequency = RTCCLK / 16384 */
#define RTC_TamperSamplingFreq_RTCCLK_Div8192 ((uint32_t)0x00000200) /*!< Each of the tamper inputs are sampled
with a frequency = RTCCLK / 8192 */
#define RTC_TamperSamplingFreq_RTCCLK_Div4096 ((uint32_t)0x00000300) /*!< Each of the tamper inputs are sampled
with a frequency = RTCCLK / 4096 */
#define RTC_TamperSamplingFreq_RTCCLK_Div2048 ((uint32_t)0x00000400) /*!< Each of the tamper inputs are sampled
with a frequency = RTCCLK / 2048 */
#define RTC_TamperSamplingFreq_RTCCLK_Div1024 ((uint32_t)0x00000500) /*!< Each of the tamper inputs are sampled
with a frequency = RTCCLK / 1024 */
#define RTC_TamperSamplingFreq_RTCCLK_Div512 ((uint32_t)0x00000600) /*!< Each of the tamper inputs are sampled
with a frequency = RTCCLK / 512 */
#define RTC_TamperSamplingFreq_RTCCLK_Div256 ((uint32_t)0x00000700) /*!< Each of the tamper inputs are sampled
with a frequency = RTCCLK / 256 */
#define IS_RTC_TAMPER_SAMPLING_FREQ(FREQ) (((FREQ) ==RTC_TamperSamplingFreq_RTCCLK_Div32768) || \
((FREQ) ==RTC_TamperSamplingFreq_RTCCLK_Div16384) || \
((FREQ) ==RTC_TamperSamplingFreq_RTCCLK_Div8192) || \
((FREQ) ==RTC_TamperSamplingFreq_RTCCLK_Div4096) || \
((FREQ) ==RTC_TamperSamplingFreq_RTCCLK_Div2048) || \
((FREQ) ==RTC_TamperSamplingFreq_RTCCLK_Div1024) || \
((FREQ) ==RTC_TamperSamplingFreq_RTCCLK_Div512) || \
((FREQ) ==RTC_TamperSamplingFreq_RTCCLK_Div256))
/**
* @}
*/
/** @defgroup RTC_Tamper_Pin_Precharge_Duration_Definitions
* @{
*/
#define RTC_TamperPrechargeDuration_1RTCCLK ((uint32_t)0x00000000) /*!< Tamper pins are pre-charged before
sampling during 1 RTCCLK cycle */
#define RTC_TamperPrechargeDuration_2RTCCLK ((uint32_t)0x00002000) /*!< Tamper pins are pre-charged before
sampling during 2 RTCCLK cycles */
#define RTC_TamperPrechargeDuration_4RTCCLK ((uint32_t)0x00004000) /*!< Tamper pins are pre-charged before
sampling during 4 RTCCLK cycles */
#define RTC_TamperPrechargeDuration_8RTCCLK ((uint32_t)0x00006000) /*!< Tamper pins are pre-charged before
sampling during 8 RTCCLK cycles */
#define IS_RTC_TAMPER_PRECHARGE_DURATION(DURATION) (((DURATION) == RTC_TamperPrechargeDuration_1RTCCLK) || \
((DURATION) == RTC_TamperPrechargeDuration_2RTCCLK) || \
((DURATION) == RTC_TamperPrechargeDuration_4RTCCLK) || \
((DURATION) == RTC_TamperPrechargeDuration_8RTCCLK))
/**
* @}
*/
/** @defgroup RTC_Tamper_Pins_Definitions
* @{
*/
#define RTC_Tamper_1 RTC_TAFCR_TAMP1E /*!< Tamper detection enable for
input tamper 1 */
#define RTC_Tamper_2 RTC_TAFCR_TAMP2E /*!< Tamper detection enable for
input tamper 2 */
#define RTC_Tamper_3 RTC_TAFCR_TAMP3E /*!< Tamper detection enable for
input tamper 3, available only
for STM32F072 devices */
#define IS_RTC_TAMPER(TAMPER) ((((TAMPER) & (uint32_t)0xFFFFFFD6) == 0x00) && ((TAMPER) != (uint32_t)RESET))
/**
* @}
*/
/** @defgroup RTC_Output_Type_ALARM_OUT
* @{
*/
#define RTC_OutputType_OpenDrain ((uint32_t)0x00000000)
#define RTC_OutputType_PushPull ((uint32_t)0x00040000)
#define IS_RTC_OUTPUT_TYPE(TYPE) (((TYPE) == RTC_OutputType_OpenDrain) || \
((TYPE) == RTC_OutputType_PushPull))
/**
* @}
*/
/** @defgroup RTC_Add_1_Second_Parameter_Definitions
* @{
*/
#define RTC_ShiftAdd1S_Reset ((uint32_t)0x00000000)
#define RTC_ShiftAdd1S_Set ((uint32_t)0x80000000)
#define IS_RTC_SHIFT_ADD1S(SEL) (((SEL) == RTC_ShiftAdd1S_Reset) || \
((SEL) == RTC_ShiftAdd1S_Set))
/**
* @}
*/
/** @defgroup RTC_Substract_Fraction_Of_Second_Value
* @{
*/
#define IS_RTC_SHIFT_SUBFS(FS) ((FS) <= 0x00007FFF)
/**
* @}
*/
/** @defgroup RTC_Backup_Registers_Definitions
* @{
*/
#define RTC_BKP_DR0 ((uint32_t)0x00000000)
#define RTC_BKP_DR1 ((uint32_t)0x00000001)
#define RTC_BKP_DR2 ((uint32_t)0x00000002)
#define RTC_BKP_DR3 ((uint32_t)0x00000003)
#define RTC_BKP_DR4 ((uint32_t)0x00000004)
#define IS_RTC_BKP(BKP) (((BKP) == RTC_BKP_DR0) || \
((BKP) == RTC_BKP_DR1) || \
((BKP) == RTC_BKP_DR2) || \
((BKP) == RTC_BKP_DR3) || \
((BKP) == RTC_BKP_DR4))
/**
* @}
*/
/** @defgroup RTC_Input_parameter_format_definitions
* @{
*/
#define RTC_Format_BIN ((uint32_t)0x000000000)
#define RTC_Format_BCD ((uint32_t)0x000000001)
#define IS_RTC_FORMAT(FORMAT) (((FORMAT) == RTC_Format_BIN) || ((FORMAT) == RTC_Format_BCD))
/**
* @}
*/
/** @defgroup RTC_Flags_Definitions
* @{
*/
#define RTC_FLAG_RECALPF RTC_ISR_RECALPF
#define RTC_FLAG_TAMP3F RTC_ISR_TAMP3F /*!< Only available for STM32F072 devices */
#define RTC_FLAG_TAMP2F RTC_ISR_TAMP2F
#define RTC_FLAG_TAMP1F RTC_ISR_TAMP1F
#define RTC_FLAG_TSOVF RTC_ISR_TSOVF
#define RTC_FLAG_TSF RTC_ISR_TSF
#define RTC_FLAG_WUTF RTC_ISR_WUTF /*!< Only available for STM32F072 devices */
#define RTC_FLAG_ALRAF RTC_ISR_ALRAF
#define RTC_FLAG_INITF RTC_ISR_INITF
#define RTC_FLAG_RSF RTC_ISR_RSF
#define RTC_FLAG_INITS RTC_ISR_INITS
#define RTC_FLAG_SHPF RTC_ISR_SHPF
#define RTC_FLAG_WUTWF RTC_ISR_WUTWF /*!< Only available for STM32F072 devices */
#define RTC_FLAG_ALRAWF RTC_ISR_ALRAWF
#define IS_RTC_GET_FLAG(FLAG) (((FLAG) == RTC_FLAG_TSOVF) || ((FLAG) == RTC_FLAG_TSF) || \
((FLAG) == RTC_FLAG_WUTF) || ((FLAG) == RTC_FLAG_ALRAWF) || \
((FLAG) == RTC_FLAG_ALRAF) || ((FLAG) == RTC_FLAG_INITF) || \
((FLAG) == RTC_FLAG_RSF) || ((FLAG) == RTC_FLAG_WUTWF) || \
((FLAG) == RTC_FLAG_TAMP1F) || ((FLAG) == RTC_FLAG_TAMP2F) || \
((FLAG) == RTC_FLAG_TAMP3F) || ((FLAG) == RTC_FLAG_RECALPF) || \
((FLAG) == RTC_FLAG_SHPF))
#define IS_RTC_CLEAR_FLAG(FLAG) (((FLAG) != (uint32_t)RESET) && (((FLAG) & 0xFFFF02DF) == (uint32_t)RESET))
/**
* @}
*/
/** @defgroup RTC_Interrupts_Definitions
* @{
*/
#define RTC_IT_TS ((uint32_t)0x00008000)
#define RTC_IT_WUT ((uint32_t)0x00004000) /* Available only for STM32F072 devices */
#define RTC_IT_ALRA ((uint32_t)0x00001000)
#define RTC_IT_TAMP ((uint32_t)0x00000004) /* Used only to Enable the Tamper Interrupt */
#define RTC_IT_TAMP1 ((uint32_t)0x00020000)
#define RTC_IT_TAMP2 ((uint32_t)0x00040000)
#define RTC_IT_TAMP3 ((uint32_t)0x00080000) /* Available only for STM32F072 devices */
#define IS_RTC_CONFIG_IT(IT) (((IT) != (uint32_t)RESET) && (((IT) & 0xFFFF2FFB) == (uint32_t)RESET))
#define IS_RTC_GET_IT(IT) (((IT) == RTC_IT_TS) || ((IT) == RTC_IT_ALRA) || \
((IT) == RTC_IT_TAMP1) || ((IT) == RTC_IT_WUT) || \
((IT) == RTC_IT_TAMP2) || ((IT) == RTC_IT_TAMP3))
#define IS_RTC_CLEAR_IT(IT) (((IT) != (uint32_t)RESET) && (((IT) & 0xFFF12FFF) == (uint32_t)RESET))
/**
* @}
*/
/**
* @}
*/
/* Exported macro ------------------------------------------------------------*/
/* Exported functions ------------------------------------------------------- */
/* Function used to set the RTC configuration to the default reset state *****/
ErrorStatus RTC_DeInit(void);
/* Initialization and Configuration functions *********************************/
ErrorStatus RTC_Init(RTC_InitTypeDef* RTC_InitStruct);
void RTC_StructInit(RTC_InitTypeDef* RTC_InitStruct);
void RTC_WriteProtectionCmd(FunctionalState NewState);
ErrorStatus RTC_EnterInitMode(void);
void RTC_ExitInitMode(void);
ErrorStatus RTC_WaitForSynchro(void);
ErrorStatus RTC_RefClockCmd(FunctionalState NewState);
void RTC_BypassShadowCmd(FunctionalState NewState);
/* Time and Date configuration functions **************************************/
ErrorStatus RTC_SetTime(uint32_t RTC_Format, RTC_TimeTypeDef* RTC_TimeStruct);
void RTC_TimeStructInit(RTC_TimeTypeDef* RTC_TimeStruct);
void RTC_GetTime(uint32_t RTC_Format, RTC_TimeTypeDef* RTC_TimeStruct);
uint32_t RTC_GetSubSecond(void);
ErrorStatus RTC_SetDate(uint32_t RTC_Format, RTC_DateTypeDef* RTC_DateStruct);
void RTC_DateStructInit(RTC_DateTypeDef* RTC_DateStruct);
void RTC_GetDate(uint32_t RTC_Format, RTC_DateTypeDef* RTC_DateStruct);
/* Alarms (Alarm A) configuration functions **********************************/
void RTC_SetAlarm(uint32_t RTC_Format, uint32_t RTC_Alarm, RTC_AlarmTypeDef* RTC_AlarmStruct);
void RTC_AlarmStructInit(RTC_AlarmTypeDef* RTC_AlarmStruct);
void RTC_GetAlarm(uint32_t RTC_Format, uint32_t RTC_Alarm, RTC_AlarmTypeDef* RTC_AlarmStruct);
ErrorStatus RTC_AlarmCmd(uint32_t RTC_Alarm, FunctionalState NewState);
void RTC_AlarmSubSecondConfig(uint32_t RTC_Alarm, uint32_t RTC_AlarmSubSecondValue, uint8_t RTC_AlarmSubSecondMask);
uint32_t RTC_GetAlarmSubSecond(uint32_t RTC_Alarm);
/* WakeUp Timer configuration functions ***************************************/
void RTC_WakeUpClockConfig(uint32_t RTC_WakeUpClock); /*!< available only for STM32F072 devices */
void RTC_SetWakeUpCounter(uint32_t RTC_WakeUpCounter); /*!< available only for STM32F072 devices */
uint32_t RTC_GetWakeUpCounter(void); /*!< available only for STM32F072 devices */
ErrorStatus RTC_WakeUpCmd(FunctionalState NewState); /*!< available only for STM32F072 devices */
/* Daylight Saving configuration functions ************************************/
void RTC_DayLightSavingConfig(uint32_t RTC_DayLightSaving, uint32_t RTC_StoreOperation);
uint32_t RTC_GetStoreOperation(void);
/* Output pin Configuration function ******************************************/
void RTC_OutputConfig(uint32_t RTC_Output, uint32_t RTC_OutputPolarity);
/* Digital Calibration configuration functions ********************************/
void RTC_CalibOutputCmd(FunctionalState NewState);
void RTC_CalibOutputConfig(uint32_t RTC_CalibOutput);
ErrorStatus RTC_SmoothCalibConfig(uint32_t RTC_SmoothCalibPeriod,
uint32_t RTC_SmoothCalibPlusPulses,
uint32_t RTC_SmouthCalibMinusPulsesValue);
/* TimeStamp configuration functions ******************************************/
void RTC_TimeStampCmd(uint32_t RTC_TimeStampEdge, FunctionalState NewState);
void RTC_GetTimeStamp(uint32_t RTC_Format, RTC_TimeTypeDef* RTC_StampTimeStruct, RTC_DateTypeDef* RTC_StampDateStruct);
uint32_t RTC_GetTimeStampSubSecond(void);
/* Tampers configuration functions ********************************************/
void RTC_TamperTriggerConfig(uint32_t RTC_Tamper, uint32_t RTC_TamperTrigger);
void RTC_TamperCmd(uint32_t RTC_Tamper, FunctionalState NewState);
void RTC_TamperFilterConfig(uint32_t RTC_TamperFilter);
void RTC_TamperSamplingFreqConfig(uint32_t RTC_TamperSamplingFreq);
void RTC_TamperPinsPrechargeDuration(uint32_t RTC_TamperPrechargeDuration);
void RTC_TimeStampOnTamperDetectionCmd(FunctionalState NewState);
void RTC_TamperPullUpCmd(FunctionalState NewState);
/* Backup Data Registers configuration functions ******************************/
void RTC_WriteBackupRegister(uint32_t RTC_BKP_DR, uint32_t Data);
uint32_t RTC_ReadBackupRegister(uint32_t RTC_BKP_DR);
/* Output Type Config configuration functions *********************************/
void RTC_OutputTypeConfig(uint32_t RTC_OutputType);
/* RTC_Shift_control_synchonisation_functions *********************************/
ErrorStatus RTC_SynchroShiftConfig(uint32_t RTC_ShiftAdd1S, uint32_t RTC_ShiftSubFS);
/* Interrupts and flags management functions **********************************/
void RTC_ITConfig(uint32_t RTC_IT, FunctionalState NewState);
FlagStatus RTC_GetFlagStatus(uint32_t RTC_FLAG);
void RTC_ClearFlag(uint32_t RTC_FLAG);
ITStatus RTC_GetITStatus(uint32_t RTC_IT);
void RTC_ClearITPendingBit(uint32_t RTC_IT);
#ifdef __cplusplus
}
#endif
#endif /*__STM32F0XX_RTC_H */
/**
* @}
*/
/**
* @}
*/
/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/

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/**
******************************************************************************
* @file stm32f0xx_spi.h
* @author MCD Application Team
* @version V1.3.0
* @date 16-January-2014
* @brief This file contains all the functions prototypes for the SPI
* firmware library.
******************************************************************************
* @attention
*
* <h2><center>&copy; COPYRIGHT(c) 2014 STMicroelectronics</center></h2>
*
* Redistribution and use in source and binary forms, with or without modification,
* are permitted provided that the following conditions are met:
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
* 3. Neither the name of STMicroelectronics nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
******************************************************************************
*/
/* Define to prevent recursive inclusion -------------------------------------*/
#ifndef __STM32F0XX_SPI_H
#define __STM32F0XX_SPI_H
#ifdef __cplusplus
extern "C" {
#endif
/* Includes ------------------------------------------------------------------*/
#include "stm32f0xx.h"
/** @addtogroup STM32F0xx_StdPeriph_Driver
* @{
*/
/** @addtogroup SPI
* @{
*/
/* Exported types ------------------------------------------------------------*/
/**
* @brief SPI Init structure definition
*/
typedef struct
{
uint16_t SPI_Direction; /*!< Specifies the SPI unidirectional or bidirectional data mode.
This parameter can be a value of @ref SPI_data_direction */
uint16_t SPI_Mode; /*!< Specifies the SPI mode (Master/Slave).
This parameter can be a value of @ref SPI_mode */
uint16_t SPI_DataSize; /*!< Specifies the SPI data size.
This parameter can be a value of @ref SPI_data_size */
uint16_t SPI_CPOL; /*!< Specifies the serial clock steady state.
This parameter can be a value of @ref SPI_Clock_Polarity */
uint16_t SPI_CPHA; /*!< Specifies the clock active edge for the bit capture.
This parameter can be a value of @ref SPI_Clock_Phase */
uint16_t SPI_NSS; /*!< Specifies whether the NSS signal is managed by
hardware (NSS pin) or by software using the SSI bit.
This parameter can be a value of @ref SPI_Slave_Select_management */
uint16_t SPI_BaudRatePrescaler; /*!< Specifies the Baud Rate prescaler value which will be
used to configure the transmit and receive SCK clock.
This parameter can be a value of @ref SPI_BaudRate_Prescaler
@note The communication clock is derived from the master
clock. The slave clock does not need to be set. */
uint16_t SPI_FirstBit; /*!< Specifies whether data transfers start from MSB or LSB bit.
This parameter can be a value of @ref SPI_MSB_LSB_transmission */
uint16_t SPI_CRCPolynomial; /*!< Specifies the polynomial used for the CRC calculation. */
}SPI_InitTypeDef;
/**
* @brief I2S Init structure definition
* @note These parameters are not available for STM32F030 devices.
*/
typedef struct
{
uint16_t I2S_Mode; /*!< Specifies the I2S operating mode.
This parameter can be a value of @ref SPI_I2S_Mode */
uint16_t I2S_Standard; /*!< Specifies the standard used for the I2S communication.
This parameter can be a value of @ref SPI_I2S_Standard */
uint16_t I2S_DataFormat; /*!< Specifies the data format for the I2S communication.
This parameter can be a value of @ref SPI_I2S_Data_Format */
uint16_t I2S_MCLKOutput; /*!< Specifies whether the I2S MCLK output is enabled or not.
This parameter can be a value of @ref SPI_I2S_MCLK_Output */
uint32_t I2S_AudioFreq; /*!< Specifies the frequency selected for the I2S communication.
This parameter can be a value of @ref SPI_I2S_Audio_Frequency */
uint16_t I2S_CPOL; /*!< Specifies the idle state of the I2S clock.
This parameter can be a value of @ref SPI_I2S_Clock_Polarity */
}I2S_InitTypeDef;
/* Exported constants --------------------------------------------------------*/
/** @defgroup SPI_Exported_Constants
* @{
*/
#define IS_SPI_ALL_PERIPH(PERIPH) (((PERIPH) == SPI1) || \
((PERIPH) == SPI2))
#define IS_SPI_1_PERIPH(PERIPH) (((PERIPH) == SPI1))
/** @defgroup SPI_data_direction
* @{
*/
#define SPI_Direction_2Lines_FullDuplex ((uint16_t)0x0000)
#define SPI_Direction_2Lines_RxOnly ((uint16_t)0x0400)
#define SPI_Direction_1Line_Rx ((uint16_t)0x8000)
#define SPI_Direction_1Line_Tx ((uint16_t)0xC000)
#define IS_SPI_DIRECTION_MODE(MODE) (((MODE) == SPI_Direction_2Lines_FullDuplex) || \
((MODE) == SPI_Direction_2Lines_RxOnly) || \
((MODE) == SPI_Direction_1Line_Rx) || \
((MODE) == SPI_Direction_1Line_Tx))
/**
* @}
*/
/** @defgroup SPI_mode
* @{
*/
#define SPI_Mode_Master ((uint16_t)0x0104)
#define SPI_Mode_Slave ((uint16_t)0x0000)
#define IS_SPI_MODE(MODE) (((MODE) == SPI_Mode_Master) || \
((MODE) == SPI_Mode_Slave))
/**
* @}
*/
/** @defgroup SPI_data_size
* @{
*/
#define SPI_DataSize_4b ((uint16_t)0x0300)
#define SPI_DataSize_5b ((uint16_t)0x0400)
#define SPI_DataSize_6b ((uint16_t)0x0500)
#define SPI_DataSize_7b ((uint16_t)0x0600)
#define SPI_DataSize_8b ((uint16_t)0x0700)
#define SPI_DataSize_9b ((uint16_t)0x0800)
#define SPI_DataSize_10b ((uint16_t)0x0900)
#define SPI_DataSize_11b ((uint16_t)0x0A00)
#define SPI_DataSize_12b ((uint16_t)0x0B00)
#define SPI_DataSize_13b ((uint16_t)0x0C00)
#define SPI_DataSize_14b ((uint16_t)0x0D00)
#define SPI_DataSize_15b ((uint16_t)0x0E00)
#define SPI_DataSize_16b ((uint16_t)0x0F00)
#define IS_SPI_DATA_SIZE(SIZE) (((SIZE) == SPI_DataSize_4b) || \
((SIZE) == SPI_DataSize_5b) || \
((SIZE) == SPI_DataSize_6b) || \
((SIZE) == SPI_DataSize_7b) || \
((SIZE) == SPI_DataSize_8b) || \
((SIZE) == SPI_DataSize_9b) || \
((SIZE) == SPI_DataSize_10b) || \
((SIZE) == SPI_DataSize_11b) || \
((SIZE) == SPI_DataSize_12b) || \
((SIZE) == SPI_DataSize_13b) || \
((SIZE) == SPI_DataSize_14b) || \
((SIZE) == SPI_DataSize_15b) || \
((SIZE) == SPI_DataSize_16b))
/**
* @}
*/
/** @defgroup SPI_CRC_length
* @{
*/
#define SPI_CRCLength_8b ((uint16_t)0x0000)
#define SPI_CRCLength_16b SPI_CR1_CRCL
#define IS_SPI_CRC_LENGTH(LENGTH) (((LENGTH) == SPI_CRCLength_8b) || \
((LENGTH) == SPI_CRCLength_16b))
/**
* @}
*/
/** @defgroup SPI_Clock_Polarity
* @{
*/
#define SPI_CPOL_Low ((uint16_t)0x0000)
#define SPI_CPOL_High SPI_CR1_CPOL
#define IS_SPI_CPOL(CPOL) (((CPOL) == SPI_CPOL_Low) || \
((CPOL) == SPI_CPOL_High))
/**
* @}
*/
/** @defgroup SPI_Clock_Phase
* @{
*/
#define SPI_CPHA_1Edge ((uint16_t)0x0000)
#define SPI_CPHA_2Edge SPI_CR1_CPHA
#define IS_SPI_CPHA(CPHA) (((CPHA) == SPI_CPHA_1Edge) || \
((CPHA) == SPI_CPHA_2Edge))
/**
* @}
*/
/** @defgroup SPI_Slave_Select_management
* @{
*/
#define SPI_NSS_Soft SPI_CR1_SSM
#define SPI_NSS_Hard ((uint16_t)0x0000)
#define IS_SPI_NSS(NSS) (((NSS) == SPI_NSS_Soft) || \
((NSS) == SPI_NSS_Hard))
/**
* @}
*/
/** @defgroup SPI_BaudRate_Prescaler
* @{
*/
#define SPI_BaudRatePrescaler_2 ((uint16_t)0x0000)
#define SPI_BaudRatePrescaler_4 ((uint16_t)0x0008)
#define SPI_BaudRatePrescaler_8 ((uint16_t)0x0010)
#define SPI_BaudRatePrescaler_16 ((uint16_t)0x0018)
#define SPI_BaudRatePrescaler_32 ((uint16_t)0x0020)
#define SPI_BaudRatePrescaler_64 ((uint16_t)0x0028)
#define SPI_BaudRatePrescaler_128 ((uint16_t)0x0030)
#define SPI_BaudRatePrescaler_256 ((uint16_t)0x0038)
#define IS_SPI_BAUDRATE_PRESCALER(PRESCALER) (((PRESCALER) == SPI_BaudRatePrescaler_2) || \
((PRESCALER) == SPI_BaudRatePrescaler_4) || \
((PRESCALER) == SPI_BaudRatePrescaler_8) || \
((PRESCALER) == SPI_BaudRatePrescaler_16) || \
((PRESCALER) == SPI_BaudRatePrescaler_32) || \
((PRESCALER) == SPI_BaudRatePrescaler_64) || \
((PRESCALER) == SPI_BaudRatePrescaler_128) || \
((PRESCALER) == SPI_BaudRatePrescaler_256))
/**
* @}
*/
/** @defgroup SPI_MSB_LSB_transmission
* @{
*/
#define SPI_FirstBit_MSB ((uint16_t)0x0000)
#define SPI_FirstBit_LSB SPI_CR1_LSBFIRST
#define IS_SPI_FIRST_BIT(BIT) (((BIT) == SPI_FirstBit_MSB) || \
((BIT) == SPI_FirstBit_LSB))
/**
* @}
*/
/** @defgroup SPI_I2S_Mode
* @{
*/
#define I2S_Mode_SlaveTx ((uint16_t)0x0000)
#define I2S_Mode_SlaveRx ((uint16_t)0x0100)
#define I2S_Mode_MasterTx ((uint16_t)0x0200)
#define I2S_Mode_MasterRx ((uint16_t)0x0300)
#define IS_I2S_MODE(MODE) (((MODE) == I2S_Mode_SlaveTx) || \
((MODE) == I2S_Mode_SlaveRx) || \
((MODE) == I2S_Mode_MasterTx)|| \
((MODE) == I2S_Mode_MasterRx))
/**
* @}
*/
/** @defgroup SPI_I2S_Standard
* @{
*/
#define I2S_Standard_Phillips ((uint16_t)0x0000)
#define I2S_Standard_MSB ((uint16_t)0x0010)
#define I2S_Standard_LSB ((uint16_t)0x0020)
#define I2S_Standard_PCMShort ((uint16_t)0x0030)
#define I2S_Standard_PCMLong ((uint16_t)0x00B0)
#define IS_I2S_STANDARD(STANDARD) (((STANDARD) == I2S_Standard_Phillips) || \
((STANDARD) == I2S_Standard_MSB) || \
((STANDARD) == I2S_Standard_LSB) || \
((STANDARD) == I2S_Standard_PCMShort) || \
((STANDARD) == I2S_Standard_PCMLong))
/**
* @}
*/
/** @defgroup SPI_I2S_Data_Format
* @{
*/
#define I2S_DataFormat_16b ((uint16_t)0x0000)
#define I2S_DataFormat_16bextended ((uint16_t)0x0001)
#define I2S_DataFormat_24b ((uint16_t)0x0003)
#define I2S_DataFormat_32b ((uint16_t)0x0005)
#define IS_I2S_DATA_FORMAT(FORMAT) (((FORMAT) == I2S_DataFormat_16b) || \
((FORMAT) == I2S_DataFormat_16bextended) || \
((FORMAT) == I2S_DataFormat_24b) || \
((FORMAT) == I2S_DataFormat_32b))
/**
* @}
*/
/** @defgroup SPI_I2S_MCLK_Output
* @{
*/
#define I2S_MCLKOutput_Enable SPI_I2SPR_MCKOE
#define I2S_MCLKOutput_Disable ((uint16_t)0x0000)
#define IS_I2S_MCLK_OUTPUT(OUTPUT) (((OUTPUT) == I2S_MCLKOutput_Enable) || \
((OUTPUT) == I2S_MCLKOutput_Disable))
/**
* @}
*/
/** @defgroup SPI_I2S_Audio_Frequency
* @{
*/
#define I2S_AudioFreq_192k ((uint32_t)192000)
#define I2S_AudioFreq_96k ((uint32_t)96000)
#define I2S_AudioFreq_48k ((uint32_t)48000)
#define I2S_AudioFreq_44k ((uint32_t)44100)
#define I2S_AudioFreq_32k ((uint32_t)32000)
#define I2S_AudioFreq_22k ((uint32_t)22050)
#define I2S_AudioFreq_16k ((uint32_t)16000)
#define I2S_AudioFreq_11k ((uint32_t)11025)
#define I2S_AudioFreq_8k ((uint32_t)8000)
#define I2S_AudioFreq_Default ((uint32_t)2)
#define IS_I2S_AUDIO_FREQ(FREQ) ((((FREQ) >= I2S_AudioFreq_8k) && \
((FREQ) <= I2S_AudioFreq_192k)) || \
((FREQ) == I2S_AudioFreq_Default))
/**
* @}
*/
/** @defgroup SPI_I2S_Clock_Polarity
* @{
*/
#define I2S_CPOL_Low ((uint16_t)0x0000)
#define I2S_CPOL_High SPI_I2SCFGR_CKPOL
#define IS_I2S_CPOL(CPOL) (((CPOL) == I2S_CPOL_Low) || \
((CPOL) == I2S_CPOL_High))
/**
* @}
*/
/** @defgroup SPI_FIFO_reception_threshold
* @{
*/
#define SPI_RxFIFOThreshold_HF ((uint16_t)0x0000)
#define SPI_RxFIFOThreshold_QF SPI_CR2_FRXTH
#define IS_SPI_RX_FIFO_THRESHOLD(THRESHOLD) (((THRESHOLD) == SPI_RxFIFOThreshold_HF) || \
((THRESHOLD) == SPI_RxFIFOThreshold_QF))
/**
* @}
*/
/** @defgroup SPI_I2S_DMA_transfer_requests
* @{
*/
#define SPI_I2S_DMAReq_Tx SPI_CR2_TXDMAEN
#define SPI_I2S_DMAReq_Rx SPI_CR2_RXDMAEN
#define IS_SPI_I2S_DMA_REQ(REQ) ((((REQ) & (uint16_t)0xFFFC) == 0x00) && ((REQ) != 0x00))
/**
* @}
*/
/** @defgroup SPI_last_DMA_transfers
* @{
*/
#define SPI_LastDMATransfer_TxEvenRxEven ((uint16_t)0x0000)
#define SPI_LastDMATransfer_TxOddRxEven ((uint16_t)0x4000)
#define SPI_LastDMATransfer_TxEvenRxOdd ((uint16_t)0x2000)
#define SPI_LastDMATransfer_TxOddRxOdd ((uint16_t)0x6000)
#define IS_SPI_LAST_DMA_TRANSFER(TRANSFER) (((TRANSFER) == SPI_LastDMATransfer_TxEvenRxEven) || \
((TRANSFER) == SPI_LastDMATransfer_TxOddRxEven) || \
((TRANSFER) == SPI_LastDMATransfer_TxEvenRxOdd) || \
((TRANSFER) == SPI_LastDMATransfer_TxOddRxOdd))
/**
* @}
*/
/** @defgroup SPI_NSS_internal_software_management
* @{
*/
#define SPI_NSSInternalSoft_Set SPI_CR1_SSI
#define SPI_NSSInternalSoft_Reset ((uint16_t)0xFEFF)
#define IS_SPI_NSS_INTERNAL(INTERNAL) (((INTERNAL) == SPI_NSSInternalSoft_Set) || \
((INTERNAL) == SPI_NSSInternalSoft_Reset))
/**
* @}
*/
/** @defgroup SPI_CRC_Transmit_Receive
* @{
*/
#define SPI_CRC_Tx ((uint8_t)0x00)
#define SPI_CRC_Rx ((uint8_t)0x01)
#define IS_SPI_CRC(CRC) (((CRC) == SPI_CRC_Tx) || ((CRC) == SPI_CRC_Rx))
/**
* @}
*/
/** @defgroup SPI_direction_transmit_receive
* @{
*/
#define SPI_Direction_Rx ((uint16_t)0xBFFF)
#define SPI_Direction_Tx ((uint16_t)0x4000)
#define IS_SPI_DIRECTION(DIRECTION) (((DIRECTION) == SPI_Direction_Rx) || \
((DIRECTION) == SPI_Direction_Tx))
/**
* @}
*/
/** @defgroup SPI_I2S_interrupts_definition
* @{
*/
#define SPI_I2S_IT_TXE ((uint8_t)0x71)
#define SPI_I2S_IT_RXNE ((uint8_t)0x60)
#define SPI_I2S_IT_ERR ((uint8_t)0x50)
#define IS_SPI_I2S_CONFIG_IT(IT) (((IT) == SPI_I2S_IT_TXE) || \
((IT) == SPI_I2S_IT_RXNE) || \
((IT) == SPI_I2S_IT_ERR))
#define I2S_IT_UDR ((uint8_t)0x53)
#define SPI_IT_MODF ((uint8_t)0x55)
#define SPI_I2S_IT_OVR ((uint8_t)0x56)
#define SPI_I2S_IT_FRE ((uint8_t)0x58)
#define IS_SPI_I2S_GET_IT(IT) (((IT) == SPI_I2S_IT_RXNE) || ((IT) == SPI_I2S_IT_TXE) || \
((IT) == SPI_I2S_IT_OVR) || ((IT) == SPI_IT_MODF) || \
((IT) == SPI_I2S_IT_FRE)|| ((IT) == I2S_IT_UDR))
/**
* @}
*/
/** @defgroup SPI_transmission_fifo_status_level
* @{
*/
#define SPI_TransmissionFIFOStatus_Empty ((uint16_t)0x0000)
#define SPI_TransmissionFIFOStatus_1QuarterFull ((uint16_t)0x0800)
#define SPI_TransmissionFIFOStatus_HalfFull ((uint16_t)0x1000)
#define SPI_TransmissionFIFOStatus_Full ((uint16_t)0x1800)
/**
* @}
*/
/** @defgroup SPI_reception_fifo_status_level
* @{
*/
#define SPI_ReceptionFIFOStatus_Empty ((uint16_t)0x0000)
#define SPI_ReceptionFIFOStatus_1QuarterFull ((uint16_t)0x0200)
#define SPI_ReceptionFIFOStatus_HalfFull ((uint16_t)0x0400)
#define SPI_ReceptionFIFOStatus_Full ((uint16_t)0x0600)
/**
* @}
*/
/** @defgroup SPI_I2S_flags_definition
* @{
*/
#define SPI_I2S_FLAG_RXNE SPI_SR_RXNE
#define SPI_I2S_FLAG_TXE SPI_SR_TXE
#define I2S_FLAG_CHSIDE SPI_SR_CHSIDE
#define I2S_FLAG_UDR SPI_SR_UDR
#define SPI_FLAG_CRCERR SPI_SR_CRCERR
#define SPI_FLAG_MODF SPI_SR_MODF
#define SPI_I2S_FLAG_OVR SPI_SR_OVR
#define SPI_I2S_FLAG_BSY SPI_SR_BSY
#define SPI_I2S_FLAG_FRE SPI_SR_FRE
#define IS_SPI_CLEAR_FLAG(FLAG) (((FLAG) == SPI_FLAG_CRCERR))
#define IS_SPI_I2S_GET_FLAG(FLAG) (((FLAG) == SPI_I2S_FLAG_BSY) || ((FLAG) == SPI_I2S_FLAG_OVR) || \
((FLAG) == SPI_FLAG_MODF) || ((FLAG) == SPI_FLAG_CRCERR) || \
((FLAG) == SPI_I2S_FLAG_TXE) || ((FLAG) == SPI_I2S_FLAG_RXNE)|| \
((FLAG) == SPI_I2S_FLAG_FRE)|| ((FLAG) == I2S_FLAG_CHSIDE)|| \
((FLAG) == I2S_FLAG_UDR))
/**
* @}
*/
/** @defgroup SPI_CRC_polynomial
* @{
*/
#define IS_SPI_CRC_POLYNOMIAL(POLYNOMIAL) ((POLYNOMIAL) >= 0x1)
/**
* @}
*/
/**
* @}
*/
/* Exported macro ------------------------------------------------------------*/
/* Exported functions ------------------------------------------------------- */
/* Initialization and Configuration functions *********************************/
void SPI_I2S_DeInit(SPI_TypeDef* SPIx);
void SPI_Init(SPI_TypeDef* SPIx, SPI_InitTypeDef* SPI_InitStruct);
void I2S_Init(SPI_TypeDef* SPIx, I2S_InitTypeDef* I2S_InitStruct); /*!< Not applicable for STM32F030 devices */
void SPI_StructInit(SPI_InitTypeDef* SPI_InitStruct);
void I2S_StructInit(I2S_InitTypeDef* I2S_InitStruct); /*!< Not applicable for STM32F030 devices */
void SPI_TIModeCmd(SPI_TypeDef* SPIx, FunctionalState NewState);
void SPI_NSSPulseModeCmd(SPI_TypeDef* SPIx, FunctionalState NewState);
void SPI_Cmd(SPI_TypeDef* SPIx, FunctionalState NewState);
void I2S_Cmd(SPI_TypeDef* SPIx, FunctionalState NewState); /*!< Not applicable for STM32F030 devices */
void SPI_DataSizeConfig(SPI_TypeDef* SPIx, uint16_t SPI_DataSize);
void SPI_RxFIFOThresholdConfig(SPI_TypeDef* SPIx, uint16_t SPI_RxFIFOThreshold);
void SPI_BiDirectionalLineConfig(SPI_TypeDef* SPIx, uint16_t SPI_Direction);
void SPI_NSSInternalSoftwareConfig(SPI_TypeDef* SPIx, uint16_t SPI_NSSInternalSoft);
void SPI_SSOutputCmd(SPI_TypeDef* SPIx, FunctionalState NewState);
/* Data transfers functions ***************************************************/
void SPI_SendData8(SPI_TypeDef* SPIx, uint8_t Data);
void SPI_I2S_SendData16(SPI_TypeDef* SPIx, uint16_t Data);
uint8_t SPI_ReceiveData8(SPI_TypeDef* SPIx);
uint16_t SPI_I2S_ReceiveData16(SPI_TypeDef* SPIx);
/* Hardware CRC Calculation functions *****************************************/
void SPI_CRCLengthConfig(SPI_TypeDef* SPIx, uint16_t SPI_CRCLength);
void SPI_CalculateCRC(SPI_TypeDef* SPIx, FunctionalState NewState);
void SPI_TransmitCRC(SPI_TypeDef* SPIx);
uint16_t SPI_GetCRC(SPI_TypeDef* SPIx, uint8_t SPI_CRC);
uint16_t SPI_GetCRCPolynomial(SPI_TypeDef* SPIx);
/* DMA transfers management functions *****************************************/
void SPI_I2S_DMACmd(SPI_TypeDef* SPIx, uint16_t SPI_I2S_DMAReq, FunctionalState NewState);
void SPI_LastDMATransferCmd(SPI_TypeDef* SPIx, uint16_t SPI_LastDMATransfer);
/* Interrupts and flags management functions **********************************/
void SPI_I2S_ITConfig(SPI_TypeDef* SPIx, uint8_t SPI_I2S_IT, FunctionalState NewState);
uint16_t SPI_GetTransmissionFIFOStatus(SPI_TypeDef* SPIx);
uint16_t SPI_GetReceptionFIFOStatus(SPI_TypeDef* SPIx);
FlagStatus SPI_I2S_GetFlagStatus(SPI_TypeDef* SPIx, uint16_t SPI_I2S_FLAG);
void SPI_I2S_ClearFlag(SPI_TypeDef* SPIx, uint16_t SPI_I2S_FLAG);
ITStatus SPI_I2S_GetITStatus(SPI_TypeDef* SPIx, uint8_t SPI_I2S_IT);
#ifdef __cplusplus
}
#endif
#endif /*__STM32F0XX_SPI_H */
/**
* @}
*/
/**
* @}
*/
/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/

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/**
******************************************************************************
* @file stm32f0xx_syscfg.c
* @author MCD Application Team
* @version V1.3.0
* @date 16-January-2014
* @brief This file provides firmware functions to manage the following
* functionalities of the SYSCFG peripheral:
* + Remapping the memory mapped at 0x00000000
* + Remapping the DMA channels
* + Enabling I2C fast mode plus driving capability for I2C pins
* + Configuring the EXTI lines connection to the GPIO port
* + Configuring the CFGR2 features (Connecting some internal signal
* to the break input of TIM1)
*
* @verbatim
===============================================================================
##### How to use this driver #####
===============================================================================
[..]
The SYSCFG registers can be accessed only when the SYSCFG
interface APB clock is enabled.
To enable SYSCFG APB clock use:
RCC_APBPeriphClockCmd(RCC_APBPeriph_SYSCFG, ENABLE).
* @endverbatim
*
******************************************************************************
* @attention
*
* <h2><center>&copy; COPYRIGHT(c) 2014 STMicroelectronics</center></h2>
*
* Redistribution and use in source and binary forms, with or without modification,
* are permitted provided that the following conditions are met:
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
* 3. Neither the name of STMicroelectronics nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
******************************************************************************
*/
/* Includes ------------------------------------------------------------------*/
#include "stm32f0xx_syscfg.h"
/** @addtogroup STM32F0xx_StdPeriph_Driver
* @{
*/
/** @defgroup SYSCFG
* @brief SYSCFG driver modules
* @{
*/
/* Private typedef -----------------------------------------------------------*/
/* Private define ------------------------------------------------------------*/
/* Private macro -------------------------------------------------------------*/
/* Private variables ---------------------------------------------------------*/
/* Private function prototypes -----------------------------------------------*/
/* Private functions ---------------------------------------------------------*/
/** @defgroup SYSCFG_Private_Functions
* @{
*/
/** @defgroup SYSCFG_Group1 SYSCFG Initialization and Configuration functions
* @brief SYSCFG Initialization and Configuration functions
*
@verbatim
===============================================================================
##### SYSCFG Initialization and Configuration functions #####
===============================================================================
@endverbatim
* @{
*/
/**
* @brief Deinitializes the SYSCFG registers to their default reset values.
* @param None
* @retval None
* @note MEM_MODE bits are not affected by APB reset.
* @note MEM_MODE bits took the value from the user option bytes.
* @note CFGR2 register is not affected by APB reset.
* @note CLABBB configuration bits are locked when set.
* @note To unlock the configuration, perform a system reset.
*/
void SYSCFG_DeInit(void)
{
/* Set SYSCFG_CFGR1 register to reset value without affecting MEM_MODE bits */
SYSCFG->CFGR1 &= SYSCFG_CFGR1_MEM_MODE;
/* Set EXTICRx registers to reset value */
SYSCFG->EXTICR[0] = 0;
SYSCFG->EXTICR[1] = 0;
SYSCFG->EXTICR[2] = 0;
SYSCFG->EXTICR[3] = 0;
/* Set CFGR2 register to reset value: clear SRAM parity error flag */
SYSCFG->CFGR2 |= (uint32_t) SYSCFG_CFGR2_SRAM_PE;
}
/**
* @brief Configures the memory mapping at address 0x00000000.
* @param SYSCFG_MemoryRemap: selects the memory remapping.
* This parameter can be one of the following values:
* @arg SYSCFG_MemoryRemap_Flash: Main Flash memory mapped at 0x00000000
* @arg SYSCFG_MemoryRemap_SystemMemory: System Flash memory mapped at 0x00000000
* @arg SYSCFG_MemoryRemap_SRAM: Embedded SRAM mapped at 0x00000000
* @retval None
*/
void SYSCFG_MemoryRemapConfig(uint32_t SYSCFG_MemoryRemap)
{
uint32_t tmpctrl = 0;
/* Check the parameter */
assert_param(IS_SYSCFG_MEMORY_REMAP(SYSCFG_MemoryRemap));
/* Get CFGR1 register value */
tmpctrl = SYSCFG->CFGR1;
/* Clear MEM_MODE bits */
tmpctrl &= (uint32_t) (~SYSCFG_CFGR1_MEM_MODE);
/* Set the new MEM_MODE bits value */
tmpctrl |= (uint32_t) SYSCFG_MemoryRemap;
/* Set CFGR1 register with the new memory remap configuration */
SYSCFG->CFGR1 = tmpctrl;
}
/**
* @brief Configure the DMA channels remapping.
* @param SYSCFG_DMARemap: selects the DMA channels remap.
* This parameter can be one of the following values:
* @arg SYSCFG_DMARemap_TIM17: Remap TIM17 DMA requests from channel1 to channel2
* @arg SYSCFG_DMARemap_TIM16: Remap TIM16 DMA requests from channel3 to channel4
* @arg SYSCFG_DMARemap_USART1Rx: Remap USART1 Rx DMA requests from channel3 to channel5
* @arg SYSCFG_DMARemap_USART1Tx: Remap USART1 Tx DMA requests from channel2 to channel4
* @arg SYSCFG_DMARemap_ADC1: Remap ADC1 DMA requests from channel1 to channel2
* @param NewState: new state of the DMA channel remapping.
* This parameter can be: ENABLE or DISABLE.
* @note When enabled, DMA channel of the selected peripheral is remapped
* @note When disabled, Default DMA channel is mapped to the selected peripheral
* @note By default TIM17 DMA requests is mapped to channel 1,
* use SYSCFG_DMAChannelRemapConfig(SYSCFG_DMARemap_TIM17, Enable) to remap
* TIM17 DMA requests to channel 2 and use
* SYSCFG_DMAChannelRemapConfig(SYSCFG_DMARemap_TIM17, Disable) to map
* TIM17 DMA requests to channel 1 (default mapping)
* @retval None
*/
void SYSCFG_DMAChannelRemapConfig(uint32_t SYSCFG_DMARemap, FunctionalState NewState)
{
/* Check the parameters */
assert_param(IS_SYSCFG_DMA_REMAP(SYSCFG_DMARemap));
assert_param(IS_FUNCTIONAL_STATE(NewState));
if (NewState != DISABLE)
{
/* Remap the DMA channel */
SYSCFG->CFGR1 |= (uint32_t)SYSCFG_DMARemap;
}
else
{
/* use the default DMA channel mapping */
SYSCFG->CFGR1 &= (uint32_t)(~SYSCFG_DMARemap);
}
}
/**
* @brief Configure the I2C fast mode plus driving capability.
* @param SYSCFG_I2CFastModePlus: selects the pin.
* This parameter can be one of the following values:
* @arg SYSCFG_I2CFastModePlus_PB6: Configure fast mode plus driving capability for PB6
* @arg SYSCFG_I2CFastModePlus_PB7: Configure fast mode plus driving capability for PB7
* @arg SYSCFG_I2CFastModePlus_PB8: Configure fast mode plus driving capability for PB8
* @arg SYSCFG_I2CFastModePlus_PB9: Configure fast mode plus driving capability for PB9
* @arg SYSCFG_I2CFastModePlus_PA9: Configure fast mode plus driving capability for PA9 (only for STM32F031 and STM32F030 devices)
* @arg SYSCFG_I2CFastModePlus_PA10: Configure fast mode plus driving capability for PA10 (only for STM32F031 and STM32F030 devices)
* @arg SYSCFG_I2CFastModePlus_I2C1: Configure fast mode plus driving capability for PB10, PB11, PF6 and PF7(only for STM32F031 and STM32F030 devices)
* @arg SYSCFG_I2CFastModePlus_I2C2: Configure fast mode plus driving capability for I2C2 pins, available only for STM32F072 devices
*
* @param NewState: new state of the DMA channel remapping.
* This parameter can be: ENABLE or DISABLE.
* @note ENABLE: Enable fast mode plus driving capability for selected I2C pin
* @note DISABLE: Disable fast mode plus driving capability for selected I2C pin
* @note For I2C1, fast mode plus driving capability can be enabled on all selected
* I2C1 pins using SYSCFG_I2CFastModePlus_I2C1 parameter or independently
* on each one of the following pins PB6, PB7, PB8 and PB9.
* @note For remaing I2C1 pins (PA14, PA15...) fast mode plus driving capability
* can be enabled only by using SYSCFG_I2CFastModePlus_I2C1 parameter.
* @note For all I2C2 pins fast mode plus driving capability can be enabled
* only by using SYSCFG_I2CFastModePlus_I2C2 parameter.
* @retval None
*/
void SYSCFG_I2CFastModePlusConfig(uint32_t SYSCFG_I2CFastModePlus, FunctionalState NewState)
{
/* Check the parameters */
assert_param(IS_SYSCFG_I2C_FMP(SYSCFG_I2CFastModePlus));
assert_param(IS_FUNCTIONAL_STATE(NewState));
if (NewState != DISABLE)
{
/* Enable fast mode plus driving capability for selected pin */
SYSCFG->CFGR1 |= (uint32_t)SYSCFG_I2CFastModePlus;
}
else
{
/* Disable fast mode plus driving capability for selected pin */
SYSCFG->CFGR1 &= (uint32_t)(~SYSCFG_I2CFastModePlus);
}
}
/**
* @brief Selects the GPIO pin used as EXTI Line.
* @param EXTI_PortSourceGPIOx: selects the GPIO port to be used as source
* for EXTI lines where x can be (A, B, C, D, E or F).
* @note GPIOE is available only for STM32F072.
* @note GPIOD is not available for STM32F031.
* @param EXTI_PinSourcex: specifies the EXTI line to be configured.
* @note This parameter can be EXTI_PinSourcex where x can be:
* For STM32F051 and STM32F030: (0..15) for GPIOA, GPIOB, GPIOC, (2) for GPIOD and (0..1, 4..7) for GIIOF.
* For STM32F072: (0..15) for GPIOA, GPIOB, GPIOC, GPIOD, GPIOE, (0..10) for GPIOF.
* For STM32F031: (0..15) for GPIOA, GPIOB, (13..15) for GPIOC and (0..1, 6..7) for GPIOF.
* @retval None
*/
void SYSCFG_EXTILineConfig(uint8_t EXTI_PortSourceGPIOx, uint8_t EXTI_PinSourcex)
{
uint32_t tmp = 0x00;
/* Check the parameters */
assert_param(IS_EXTI_PORT_SOURCE(EXTI_PortSourceGPIOx));
assert_param(IS_EXTI_PIN_SOURCE(EXTI_PinSourcex));
tmp = ((uint32_t)0x0F) << (0x04 * (EXTI_PinSourcex & (uint8_t)0x03));
SYSCFG->EXTICR[EXTI_PinSourcex >> 0x02] &= ~tmp;
SYSCFG->EXTICR[EXTI_PinSourcex >> 0x02] |= (((uint32_t)EXTI_PortSourceGPIOx) << (0x04 * (EXTI_PinSourcex & (uint8_t)0x03)));
}
/**
* @brief Connect the selected parameter to the break input of TIM1.
* @note The selected configuration is locked and can be unlocked by system reset
* @param SYSCFG_Break: selects the configuration to be connected to break
* input of TIM1
* This parameter can be any combination of the following values:
* @arg SYSCFG_Break_PVD: Connects the PVD event to the Break Input of TIM1,, not avaailable for STM32F030 devices.
* @arg SYSCFG_Break_SRAMParity: Connects the SRAM_PARITY error signal to the Break Input of TIM1 .
* @arg SYSCFG_Break_Lockup: Connects Lockup output of CortexM0 to the break input of TIM1.
* @retval None
*/
void SYSCFG_BreakConfig(uint32_t SYSCFG_Break)
{
/* Check the parameter */
assert_param(IS_SYSCFG_LOCK_CONFIG(SYSCFG_Break));
SYSCFG->CFGR2 |= (uint32_t) SYSCFG_Break;
}
/**
* @brief Checks whether the specified SYSCFG flag is set or not.
* @param SYSCFG_Flag: specifies the SYSCFG flag to check.
* This parameter can be one of the following values:
* @arg SYSCFG_FLAG_PE: SRAM parity error flag.
* @retval The new state of SYSCFG_Flag (SET or RESET).
*/
FlagStatus SYSCFG_GetFlagStatus(uint32_t SYSCFG_Flag)
{
FlagStatus bitstatus = RESET;
/* Check the parameter */
assert_param(IS_SYSCFG_FLAG(SYSCFG_Flag));
/* Check the status of the specified SPI flag */
if ((SYSCFG->CFGR2 & SYSCFG_CFGR2_SRAM_PE) != (uint32_t)RESET)
{
/* SYSCFG_Flag is set */
bitstatus = SET;
}
else
{
/* SYSCFG_Flag is reset */
bitstatus = RESET;
}
/* Return the SYSCFG_Flag status */
return bitstatus;
}
/**
* @brief Clear the selected SYSCFG flag.
* @param SYSCFG_Flag: selects the flag to be cleared.
* This parameter can be any combination of the following values:
* @arg SYSCFG_FLAG_PE: SRAM parity error flag.
* @retval None
*/
void SYSCFG_ClearFlag(uint32_t SYSCFG_Flag)
{
/* Check the parameter */
assert_param(IS_SYSCFG_FLAG(SYSCFG_Flag));
SYSCFG->CFGR2 |= (uint32_t) SYSCFG_Flag;
}
/**
* @}
*/
/**
* @}
*/
/**
* @}
*/
/**
* @}
*/
/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/

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/**
******************************************************************************
* @file stm32f0xx_syscfg.h
* @author MCD Application Team
* @version V1.3.0
* @date 16-January-2014
* @brief This file contains all the functions prototypes for the SYSCFG firmware
* library.
******************************************************************************
* @attention
*
* <h2><center>&copy; COPYRIGHT(c) 2014 STMicroelectronics</center></h2>
*
* Redistribution and use in source and binary forms, with or without modification,
* are permitted provided that the following conditions are met:
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
* 3. Neither the name of STMicroelectronics nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
******************************************************************************
*/
/*!< Define to prevent recursive inclusion -------------------------------------*/
#ifndef __STM32F0XX_SYSCFG_H
#define __STM32F0XX_SYSCFG_H
#ifdef __cplusplus
extern "C" {
#endif
/*!< Includes ------------------------------------------------------------------*/
#include "stm32f0xx.h"
/** @addtogroup STM32F0xx_StdPeriph_Driver
* @{
*/
/** @addtogroup SYSCFG
* @{
*/
/* Exported types ------------------------------------------------------------*/
/* Exported constants --------------------------------------------------------*/
/** @defgroup SYSCFG_Exported_Constants
* @{
*/
/** @defgroup SYSCFG_EXTI_Port_Sources
* @{
*/
#define EXTI_PortSourceGPIOA ((uint8_t)0x00)
#define EXTI_PortSourceGPIOB ((uint8_t)0x01)
#define EXTI_PortSourceGPIOC ((uint8_t)0x02)
#define EXTI_PortSourceGPIOD ((uint8_t)0x03) /*!< not available for STM32F031 devices */
#define EXTI_PortSourceGPIOE ((uint8_t)0x04) /*!< only available for STM32F072 devices */
#define EXTI_PortSourceGPIOF ((uint8_t)0x05)
#define IS_EXTI_PORT_SOURCE(PORTSOURCE) (((PORTSOURCE) == EXTI_PortSourceGPIOA) || \
((PORTSOURCE) == EXTI_PortSourceGPIOB) || \
((PORTSOURCE) == EXTI_PortSourceGPIOC) || \
((PORTSOURCE) == EXTI_PortSourceGPIOD) || \
((PORTSOURCE) == EXTI_PortSourceGPIOE) || \
((PORTSOURCE) == EXTI_PortSourceGPIOF))
/**
* @}
*/
/** @defgroup SYSCFG_EXTI_Pin_sources
* @{
*/
#define EXTI_PinSource0 ((uint8_t)0x00)
#define EXTI_PinSource1 ((uint8_t)0x01)
#define EXTI_PinSource2 ((uint8_t)0x02)
#define EXTI_PinSource3 ((uint8_t)0x03)
#define EXTI_PinSource4 ((uint8_t)0x04)
#define EXTI_PinSource5 ((uint8_t)0x05)
#define EXTI_PinSource6 ((uint8_t)0x06)
#define EXTI_PinSource7 ((uint8_t)0x07)
#define EXTI_PinSource8 ((uint8_t)0x08)
#define EXTI_PinSource9 ((uint8_t)0x09)
#define EXTI_PinSource10 ((uint8_t)0x0A)
#define EXTI_PinSource11 ((uint8_t)0x0B)
#define EXTI_PinSource12 ((uint8_t)0x0C)
#define EXTI_PinSource13 ((uint8_t)0x0D)
#define EXTI_PinSource14 ((uint8_t)0x0E)
#define EXTI_PinSource15 ((uint8_t)0x0F)
#define IS_EXTI_PIN_SOURCE(PINSOURCE) (((PINSOURCE) == EXTI_PinSource0) || \
((PINSOURCE) == EXTI_PinSource1) || \
((PINSOURCE) == EXTI_PinSource2) || \
((PINSOURCE) == EXTI_PinSource3) || \
((PINSOURCE) == EXTI_PinSource4) || \
((PINSOURCE) == EXTI_PinSource5) || \
((PINSOURCE) == EXTI_PinSource6) || \
((PINSOURCE) == EXTI_PinSource7) || \
((PINSOURCE) == EXTI_PinSource8) || \
((PINSOURCE) == EXTI_PinSource9) || \
((PINSOURCE) == EXTI_PinSource10) || \
((PINSOURCE) == EXTI_PinSource11) || \
((PINSOURCE) == EXTI_PinSource12) || \
((PINSOURCE) == EXTI_PinSource13) || \
((PINSOURCE) == EXTI_PinSource14) || \
((PINSOURCE) == EXTI_PinSource15))
/**
* @}
*/
/** @defgroup SYSCFG_Memory_Remap_Config
* @{
*/
#define SYSCFG_MemoryRemap_Flash ((uint8_t)0x00)
#define SYSCFG_MemoryRemap_SystemMemory ((uint8_t)0x01)
#define SYSCFG_MemoryRemap_SRAM ((uint8_t)0x03)
#define IS_SYSCFG_MEMORY_REMAP(REMAP) (((REMAP) == SYSCFG_MemoryRemap_Flash) || \
((REMAP) == SYSCFG_MemoryRemap_SystemMemory) || \
((REMAP) == SYSCFG_MemoryRemap_SRAM))
/**
* @}
*/
/** @defgroup SYSCFG_DMA_Remap_Config
* @{
*/
#define SYSCFG_DMARemap_TIM3 SYSCFG_CFGR1_TIM3_DMA_RMP /* Remap TIM3 DMA requests from channel4 to channel6,
available only for STM32F072 devices */
#define SYSCFG_DMARemap_TIM2 SYSCFG_CFGR1_TIM2_DMA_RMP /* Remap TIM2 DMA requests from channel3/4 to channel7,
available only for STM32F072 devices */
#define SYSCFG_DMARemap_TIM1 SYSCFG_CFGR1_TIM1_DMA_RMP /* Remap TIM1 DMA requests from channel2/3/4 to channel6,
available only for STM32F072 devices */
#define SYSCFG_DMARemap_I2C1 SYSCFG_CFGR1_I2C1_DMA_RMP /* Remap I2C1 DMA requests from channel3/2 to channel7/6,
available only for STM32F072 devices */
#define SYSCFG_DMARemap_USART3 SYSCFG_CFGR1_USART3_DMA_RMP /* Remap USART3 DMA requests from channel6/7 to channel3/2,
available only for STM32F072 devices */
#define SYSCFG_DMARemap_USART2 SYSCFG_CFGR1_USART2_DMA_RMP /* Remap USART2 DMA requests from channel4/5 to channel6/7,
available only for STM32F072 devices */
#define SYSCFG_DMARemap_SPI2 SYSCFG_CFGR1_SPI2_DMA_RMP /* Remap SPI2 DMA requests from channel4/5 to channel6/7,
available only for STM32F072 devices */
#define SYSCFG_DMARemap_TIM17_2 SYSCFG_CFGR1_TIM17_DMA_RMP2 /* Remap TIM17 DMA requests from channel1/2 to channel7,
available only for STM32F072 devices */
#define SYSCFG_DMARemap_TIM16_2 SYSCFG_CFGR1_TIM16_DMA_RMP2 /* Remap TIM16 DMA requests from channel3/4 to channel6,
available only for STM32F072 devices */
#define SYSCFG_DMARemap_TIM17 SYSCFG_CFGR1_TIM17_DMA_RMP /* Remap TIM17 DMA requests from channel1 to channel2 */
#define SYSCFG_DMARemap_TIM16 SYSCFG_CFGR1_TIM16_DMA_RMP /* Remap TIM16 DMA requests from channel3 to channel4 */
#define SYSCFG_DMARemap_USART1Rx SYSCFG_CFGR1_USART1RX_DMA_RMP /* Remap USART1 Rx DMA requests from channel3 to channel5 */
#define SYSCFG_DMARemap_USART1Tx SYSCFG_CFGR1_USART1TX_DMA_RMP /* Remap USART1 Tx DMA requests from channel2 to channel4 */
#define SYSCFG_DMARemap_ADC1 SYSCFG_CFGR1_ADC_DMA_RMP /* Remap ADC1 DMA requests from channel1 to channel2 */
#define IS_SYSCFG_DMA_REMAP(REMAP) (((REMAP) == SYSCFG_DMARemap_TIM17) || \
((REMAP) == SYSCFG_DMARemap_TIM16) || \
((REMAP) == SYSCFG_DMARemap_USART1Rx) || \
((REMAP) == SYSCFG_DMARemap_USART1Tx) || \
((REMAP) == SYSCFG_CFGR1_TIM3_DMA_RMP) || \
((REMAP) == SYSCFG_CFGR1_TIM2_DMA_RMP) || \
((REMAP) == SYSCFG_CFGR1_TIM1_DMA_RMP) || \
((REMAP) == SYSCFG_CFGR1_I2C1_DMA_RMP) || \
((REMAP) == SYSCFG_CFGR1_USART3_DMA_RMP) || \
((REMAP) == SYSCFG_CFGR1_USART2_DMA_RMP) || \
((REMAP) == SYSCFG_CFGR1_SPI2_DMA_RMP) || \
((REMAP) == SYSCFG_CFGR1_TIM17_DMA_RMP2) || \
((REMAP) == SYSCFG_CFGR1_TIM16_DMA_RMP2) || \
((REMAP) == SYSCFG_DMARemap_ADC1))
/**
* @}
*/
/** @defgroup SYSCFG_I2C_FastModePlus_Config
* @{
*/
#define SYSCFG_I2CFastModePlus_PB6 SYSCFG_CFGR1_I2C_FMP_PB6 /* Enable Fast Mode Plus on PB6 */
#define SYSCFG_I2CFastModePlus_PB7 SYSCFG_CFGR1_I2C_FMP_PB7 /* Enable Fast Mode Plus on PB7 */
#define SYSCFG_I2CFastModePlus_PB8 SYSCFG_CFGR1_I2C_FMP_PB8 /* Enable Fast Mode Plus on PB8 */
#define SYSCFG_I2CFastModePlus_PB9 SYSCFG_CFGR1_I2C_FMP_PB9 /* Enable Fast Mode Plus on PB9 */
#define SYSCFG_I2CFastModePlus_I2C1 SYSCFG_CFGR1_I2C_FMP_I2C1 /* Enable Fast Mode Plus on PB10, PB11, PF6 and PF7(only for STM32F0031 and STM32F030 devices) */
#define SYSCFG_I2CFastModePlus_I2C2 SYSCFG_CFGR1_I2C_FMP_I2C2 /* Enable Fast Mode Plus on I2C2 pins, available only for STM32F072 devices */
#define SYSCFG_I2CFastModePlus_PA9 SYSCFG_CFGR1_I2C_FMP_PA9 /* Enable Fast Mode Plus on PA9 (only for STM32F031 and STM32F030 devices) */
#define SYSCFG_I2CFastModePlus_PA10 SYSCFG_CFGR1_I2C_FMP_PA10/* Enable Fast Mode Plus on PA10(only for STM32F031 and STM32F030 devices) */
#define IS_SYSCFG_I2C_FMP(PIN) (((PIN) == SYSCFG_I2CFastModePlus_PB6) || \
((PIN) == SYSCFG_I2CFastModePlus_PB7) || \
((PIN) == SYSCFG_I2CFastModePlus_PB8) || \
((PIN) == SYSCFG_I2CFastModePlus_PB9) || \
((PIN) == SYSCFG_I2CFastModePlus_I2C1) || \
((PIN) == SYSCFG_I2CFastModePlus_I2C2) || \
((PIN) == SYSCFG_I2CFastModePlus_PA9) || \
((PIN) == SYSCFG_I2CFastModePlus_PA10))
/**
* @}
*/
/** @defgroup SYSCFG_Lock_Config
* @{
*/
#define SYSCFG_Break_PVD SYSCFG_CFGR2_PVD_LOCK /*!< Connects the PVD event to the Break Input of TIM1, not available for STM32F030 devices */
#define SYSCFG_Break_SRAMParity SYSCFG_CFGR2_SRAM_PARITY_LOCK /*!< Connects the SRAM_PARITY error signal to the Break Input of TIM1 */
#define SYSCFG_Break_Lockup SYSCFG_CFGR2_LOCKUP_LOCK /*!< Connects Lockup output of CortexM0 to the break input of TIM1 */
#define IS_SYSCFG_LOCK_CONFIG(CONFIG) (((CONFIG) == SYSCFG_Break_PVD) || \
((CONFIG) == SYSCFG_Break_SRAMParity) || \
((CONFIG) == SYSCFG_Break_Lockup))
/**
* @}
*/
/** @defgroup SYSCFG_flags_definition
* @{
*/
#define SYSCFG_FLAG_PE SYSCFG_CFGR2_SRAM_PE
#define IS_SYSCFG_FLAG(FLAG) (((FLAG) == SYSCFG_FLAG_PE))
/**
* @}
*/
/**
* @}
*/
/* Exported macro ------------------------------------------------------------*/
/* Exported functions ------------------------------------------------------- */
/* Function used to set the SYSCFG configuration to the default reset state **/
void SYSCFG_DeInit(void);
/* SYSCFG configuration functions *********************************************/
void SYSCFG_MemoryRemapConfig(uint32_t SYSCFG_MemoryRemap);
void SYSCFG_DMAChannelRemapConfig(uint32_t SYSCFG_DMARemap, FunctionalState NewState);
void SYSCFG_I2CFastModePlusConfig(uint32_t SYSCFG_I2CFastModePlus, FunctionalState NewState);
void SYSCFG_EXTILineConfig(uint8_t EXTI_PortSourceGPIOx, uint8_t EXTI_PinSourcex);
void SYSCFG_BreakConfig(uint32_t SYSCFG_Break);
FlagStatus SYSCFG_GetFlagStatus(uint32_t SYSCFG_Flag);
void SYSCFG_ClearFlag(uint32_t SYSCFG_Flag);
#ifdef __cplusplus
}
#endif
#endif /*__STM32F0XX_SYSCFG_H */
/**
* @}
*/
/**
* @}
*/
/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/

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/**
******************************************************************************
* @file stm32f0xx_usart.h
* @author MCD Application Team
* @version V1.3.0
* @date 16-January-2014
* @brief This file contains all the functions prototypes for the USART
* firmware library.
******************************************************************************
* @attention
*
* <h2><center>&copy; COPYRIGHT(c) 2014 STMicroelectronics</center></h2>
*
* Redistribution and use in source and binary forms, with or without modification,
* are permitted provided that the following conditions are met:
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
* 3. Neither the name of STMicroelectronics nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
******************************************************************************
*/
/* Define to prevent recursive inclusion -------------------------------------*/
#ifndef __STM32F0XX_USART_H
#define __STM32F0XX_USART_H
#ifdef __cplusplus
extern "C" {
#endif
/* Includes ------------------------------------------------------------------*/
#include "stm32f0xx.h"
/** @addtogroup STM32F0xx_StdPeriph_Driver
* @{
*/
/** @addtogroup USART
* @{
*/
/* Exported types ------------------------------------------------------------*/
/**
* @brief USART Init Structure definition
*/
typedef struct
{
uint32_t USART_BaudRate; /*!< This member configures the USART communication baud rate.
The baud rate is computed using the following formula:
- IntegerDivider = ((PCLKx) / (16 * (USART_InitStruct->USART_BaudRate)))
- FractionalDivider = ((IntegerDivider - ((uint32_t) IntegerDivider)) * 16) + 0.5 */
uint32_t USART_WordLength; /*!< Specifies the number of data bits transmitted or received in a frame.
This parameter can be a value of @ref USART_Word_Length */
uint32_t USART_StopBits; /*!< Specifies the number of stop bits transmitted.
This parameter can be a value of @ref USART_Stop_Bits */
uint32_t USART_Parity; /*!< Specifies the parity mode.
This parameter can be a value of @ref USART_Parity
@note When parity is enabled, the computed parity is inserted
at the MSB position of the transmitted data (9th bit when
the word length is set to 9 data bits; 8th bit when the
word length is set to 8 data bits). */
uint32_t USART_Mode; /*!< Specifies wether the Receive or Transmit mode is enabled or disabled.
This parameter can be a value of @ref USART_Mode */
uint32_t USART_HardwareFlowControl; /*!< Specifies wether the hardware flow control mode is enabled
or disabled.
This parameter can be a value of @ref USART_Hardware_Flow_Control*/
} USART_InitTypeDef;
/**
* @brief USART Clock Init Structure definition
*/
typedef struct
{
uint32_t USART_Clock; /*!< Specifies whether the USART clock is enabled or disabled.
This parameter can be a value of @ref USART_Clock */
uint32_t USART_CPOL; /*!< Specifies the steady state of the serial clock.
This parameter can be a value of @ref USART_Clock_Polarity */
uint32_t USART_CPHA; /*!< Specifies the clock transition on which the bit capture is made.
This parameter can be a value of @ref USART_Clock_Phase */
uint32_t USART_LastBit; /*!< Specifies whether the clock pulse corresponding to the last transmitted
data bit (MSB) has to be output on the SCLK pin in synchronous mode.
This parameter can be a value of @ref USART_Last_Bit */
} USART_ClockInitTypeDef;
/* Exported constants --------------------------------------------------------*/
/** @defgroup USART_Exported_Constants
* @{
*/
#define IS_USART_ALL_PERIPH(PERIPH) (((PERIPH) == USART1) || \
((PERIPH) == USART2) || \
((PERIPH) == USART3) || \
((PERIPH) == USART4))
#define IS_USART_12_PERIPH(PERIPH) (((PERIPH) == USART1) || \
((PERIPH) == USART2))
/** @defgroup USART_Word_Length
* @{
*/
#define USART_WordLength_8b ((uint32_t)0x00000000)
#define USART_WordLength_9b USART_CR1_M /* should be ((uint32_t)0x00001000) */
#define USART_WordLength_7b ((uint32_t)0x10001000) /*!< only available for STM32F072 and STM32F030 devices */
#define IS_USART_WORD_LENGTH(LENGTH) (((LENGTH) == USART_WordLength_8b) || \
((LENGTH) == USART_WordLength_9b) || \
((LENGTH) == USART_WordLength_7b))
/**
* @}
*/
/** @defgroup USART_Stop_Bits
* @{
*/
#define USART_StopBits_1 ((uint32_t)0x00000000)
#define USART_StopBits_2 USART_CR2_STOP_1
#define USART_StopBits_1_5 (USART_CR2_STOP_0 | USART_CR2_STOP_1)
#define IS_USART_STOPBITS(STOPBITS) (((STOPBITS) == USART_StopBits_1) || \
((STOPBITS) == USART_StopBits_2) || \
((STOPBITS) == USART_StopBits_1_5))
/**
* @}
*/
/** @defgroup USART_Parity
* @{
*/
#define USART_Parity_No ((uint32_t)0x00000000)
#define USART_Parity_Even USART_CR1_PCE
#define USART_Parity_Odd (USART_CR1_PCE | USART_CR1_PS)
#define IS_USART_PARITY(PARITY) (((PARITY) == USART_Parity_No) || \
((PARITY) == USART_Parity_Even) || \
((PARITY) == USART_Parity_Odd))
/**
* @}
*/
/** @defgroup USART_Mode
* @{
*/
#define USART_Mode_Rx USART_CR1_RE
#define USART_Mode_Tx USART_CR1_TE
#define IS_USART_MODE(MODE) ((((MODE) & (uint32_t)0xFFFFFFF3) == 0x00) && \
((MODE) != (uint32_t)0x00))
/**
* @}
*/
/** @defgroup USART_Hardware_Flow_Control
* @{
*/
#define USART_HardwareFlowControl_None ((uint32_t)0x00000000)
#define USART_HardwareFlowControl_RTS USART_CR3_RTSE
#define USART_HardwareFlowControl_CTS USART_CR3_CTSE
#define USART_HardwareFlowControl_RTS_CTS (USART_CR3_RTSE | USART_CR3_CTSE)
#define IS_USART_HARDWARE_FLOW_CONTROL(CONTROL)\
(((CONTROL) == USART_HardwareFlowControl_None) || \
((CONTROL) == USART_HardwareFlowControl_RTS) || \
((CONTROL) == USART_HardwareFlowControl_CTS) || \
((CONTROL) == USART_HardwareFlowControl_RTS_CTS))
/**
* @}
*/
/** @defgroup USART_Clock
* @{
*/
#define USART_Clock_Disable ((uint32_t)0x00000000)
#define USART_Clock_Enable USART_CR2_CLKEN
#define IS_USART_CLOCK(CLOCK) (((CLOCK) == USART_Clock_Disable) || \
((CLOCK) == USART_Clock_Enable))
/**
* @}
*/
/** @defgroup USART_Clock_Polarity
* @{
*/
#define USART_CPOL_Low ((uint32_t)0x00000000)
#define USART_CPOL_High USART_CR2_CPOL
#define IS_USART_CPOL(CPOL) (((CPOL) == USART_CPOL_Low) || ((CPOL) == USART_CPOL_High))
/**
* @}
*/
/** @defgroup USART_Clock_Phase
* @{
*/
#define USART_CPHA_1Edge ((uint32_t)0x00000000)
#define USART_CPHA_2Edge USART_CR2_CPHA
#define IS_USART_CPHA(CPHA) (((CPHA) == USART_CPHA_1Edge) || ((CPHA) == USART_CPHA_2Edge))
/**
* @}
*/
/** @defgroup USART_Last_Bit
* @{
*/
#define USART_LastBit_Disable ((uint32_t)0x00000000)
#define USART_LastBit_Enable USART_CR2_LBCL
#define IS_USART_LASTBIT(LASTBIT) (((LASTBIT) == USART_LastBit_Disable) || \
((LASTBIT) == USART_LastBit_Enable))
/**
* @}
*/
/** @defgroup USART_DMA_Requests
* @{
*/
#define USART_DMAReq_Tx USART_CR3_DMAT
#define USART_DMAReq_Rx USART_CR3_DMAR
#define IS_USART_DMAREQ(DMAREQ) ((((DMAREQ) & (uint32_t)0xFFFFFF3F) == 0x00) && \
((DMAREQ) != (uint32_t)0x00))
/**
* @}
*/
/** @defgroup USART_DMA_Recception_Error
* @{
*/
#define USART_DMAOnError_Enable ((uint32_t)0x00000000)
#define USART_DMAOnError_Disable USART_CR3_DDRE
#define IS_USART_DMAONERROR(DMAERROR) (((DMAERROR) == USART_DMAOnError_Disable)|| \
((DMAERROR) == USART_DMAOnError_Enable))
/**
* @}
*/
/** @defgroup USART_MuteMode_WakeUp_methods
* @{
*/
#define USART_WakeUp_IdleLine ((uint32_t)0x00000000)
#define USART_WakeUp_AddressMark USART_CR1_WAKE
#define IS_USART_MUTEMODE_WAKEUP(WAKEUP) (((WAKEUP) == USART_WakeUp_IdleLine) || \
((WAKEUP) == USART_WakeUp_AddressMark))
/**
* @}
*/
/** @defgroup USART_Address_Detection
* @{
*/
#define USART_AddressLength_4b ((uint32_t)0x00000000)
#define USART_AddressLength_7b USART_CR2_ADDM7
#define IS_USART_ADDRESS_DETECTION(ADDRESS) (((ADDRESS) == USART_AddressLength_4b) || \
((ADDRESS) == USART_AddressLength_7b))
/**
* @}
*/
/** @defgroup USART_StopMode_WakeUp_methods
* @note These parameters are only available for STM32F051 and STM32F072 devices
* @{
*/
#define USART_WakeUpSource_AddressMatch ((uint32_t)0x00000000)
#define USART_WakeUpSource_StartBit USART_CR3_WUS_1
#define USART_WakeUpSource_RXNE (USART_CR3_WUS_0 | USART_CR3_WUS_1)
#define IS_USART_STOPMODE_WAKEUPSOURCE(SOURCE) (((SOURCE) == USART_WakeUpSource_AddressMatch) || \
((SOURCE) == USART_WakeUpSource_StartBit) || \
((SOURCE) == USART_WakeUpSource_RXNE))
/**
* @}
*/
/** @defgroup USART_LIN_Break_Detection_Length
* @{
*/
#define USART_LINBreakDetectLength_10b ((uint32_t)0x00000000)
#define USART_LINBreakDetectLength_11b USART_CR2_LBDL
#define IS_USART_LIN_BREAK_DETECT_LENGTH(LENGTH) \
(((LENGTH) == USART_LINBreakDetectLength_10b) || \
((LENGTH) == USART_LINBreakDetectLength_11b))
/**
* @}
*/
/** @defgroup USART_IrDA_Low_Power
* @{
*/
#define USART_IrDAMode_LowPower USART_CR3_IRLP
#define USART_IrDAMode_Normal ((uint32_t)0x00000000)
#define IS_USART_IRDA_MODE(MODE) (((MODE) == USART_IrDAMode_LowPower) || \
((MODE) == USART_IrDAMode_Normal))
/**
* @}
*/
/** @defgroup USART_DE_Polarity
* @{
*/
#define USART_DEPolarity_High ((uint32_t)0x00000000)
#define USART_DEPolarity_Low USART_CR3_DEP
#define IS_USART_DE_POLARITY(POLARITY) (((POLARITY) == USART_DEPolarity_Low) || \
((POLARITY) == USART_DEPolarity_High))
/**
* @}
*/
/** @defgroup USART_Inversion_Pins
* @{
*/
#define USART_InvPin_Tx USART_CR2_TXINV
#define USART_InvPin_Rx USART_CR2_RXINV
#define IS_USART_INVERSTION_PIN(PIN) ((((PIN) & (uint32_t)0xFFFCFFFF) == 0x00) && \
((PIN) != (uint32_t)0x00))
/**
* @}
*/
/** @defgroup USART_AutoBaudRate_Mode
* @{
*/
#define USART_AutoBaudRate_StartBit ((uint32_t)0x00000000)
#define USART_AutoBaudRate_FallingEdge USART_CR2_ABRMODE_0
#define IS_USART_AUTOBAUDRATE_MODE(MODE) (((MODE) == USART_AutoBaudRate_StartBit) || \
((MODE) == USART_AutoBaudRate_FallingEdge))
/**
* @}
*/
/** @defgroup USART_OVR_DETECTION
* @{
*/
#define USART_OVRDetection_Enable ((uint32_t)0x00000000)
#define USART_OVRDetection_Disable USART_CR3_OVRDIS
#define IS_USART_OVRDETECTION(OVR) (((OVR) == USART_OVRDetection_Enable)|| \
((OVR) == USART_OVRDetection_Disable))
/**
* @}
*/
/** @defgroup USART_Request
* @{
*/
#define USART_Request_ABRRQ USART_RQR_ABRRQ
#define USART_Request_SBKRQ USART_RQR_SBKRQ
#define USART_Request_MMRQ USART_RQR_MMRQ
#define USART_Request_RXFRQ USART_RQR_RXFRQ
#define USART_Request_TXFRQ USART_RQR_TXFRQ
#define IS_USART_REQUEST(REQUEST) (((REQUEST) == USART_Request_TXFRQ) || \
((REQUEST) == USART_Request_RXFRQ) || \
((REQUEST) == USART_Request_MMRQ) || \
((REQUEST) == USART_Request_SBKRQ) || \
((REQUEST) == USART_Request_ABRRQ))
/**
* @}
*/
/** @defgroup USART_Flags
* @{
*/
#define USART_FLAG_REACK USART_ISR_REACK
#define USART_FLAG_TEACK USART_ISR_TEACK
#define USART_FLAG_WU USART_ISR_WUF /*!< Not available for STM32F030 devices */
#define USART_FLAG_RWU USART_ISR_RWU /*!< Not available for STM32F030 devices */
#define USART_FLAG_SBK USART_ISR_SBKF
#define USART_FLAG_CM USART_ISR_CMF
#define USART_FLAG_BUSY USART_ISR_BUSY
#define USART_FLAG_ABRF USART_ISR_ABRF
#define USART_FLAG_ABRE USART_ISR_ABRE
#define USART_FLAG_EOB USART_ISR_EOBF /*!< Not available for STM32F030 devices */
#define USART_FLAG_RTO USART_ISR_RTOF
#define USART_FLAG_nCTSS USART_ISR_CTS
#define USART_FLAG_CTS USART_ISR_CTSIF
#define USART_FLAG_LBD USART_ISR_LBD /*!< Not available for STM32F030 devices */
#define USART_FLAG_TXE USART_ISR_TXE
#define USART_FLAG_TC USART_ISR_TC
#define USART_FLAG_RXNE USART_ISR_RXNE
#define USART_FLAG_IDLE USART_ISR_IDLE
#define USART_FLAG_ORE USART_ISR_ORE
#define USART_FLAG_NE USART_ISR_NE
#define USART_FLAG_FE USART_ISR_FE
#define USART_FLAG_PE USART_ISR_PE
#define IS_USART_FLAG(FLAG) (((FLAG) == USART_FLAG_PE) || ((FLAG) == USART_FLAG_TXE) || \
((FLAG) == USART_FLAG_TC) || ((FLAG) == USART_FLAG_RXNE) || \
((FLAG) == USART_FLAG_IDLE) || ((FLAG) == USART_FLAG_LBD) || \
((FLAG) == USART_FLAG_CTS) || ((FLAG) == USART_FLAG_ORE) || \
((FLAG) == USART_FLAG_NE) || ((FLAG) == USART_FLAG_FE) || \
((FLAG) == USART_FLAG_nCTSS) || ((FLAG) == USART_FLAG_RTO) || \
((FLAG) == USART_FLAG_EOB) || ((FLAG) == USART_FLAG_ABRE) || \
((FLAG) == USART_FLAG_ABRF) || ((FLAG) == USART_FLAG_BUSY) || \
((FLAG) == USART_FLAG_CM) || ((FLAG) == USART_FLAG_SBK) || \
((FLAG) == USART_FLAG_RWU) || ((FLAG) == USART_FLAG_WU) || \
((FLAG) == USART_FLAG_TEACK)|| ((FLAG) == USART_FLAG_REACK))
#define IS_USART_CLEAR_FLAG(FLAG) (((FLAG) == USART_FLAG_WU) || ((FLAG) == USART_FLAG_TC) || \
((FLAG) == USART_FLAG_IDLE) || ((FLAG) == USART_FLAG_ORE) || \
((FLAG) == USART_FLAG_NE) || ((FLAG) == USART_FLAG_FE) || \
((FLAG) == USART_FLAG_LBD) || ((FLAG) == USART_FLAG_CTS) || \
((FLAG) == USART_FLAG_RTO) || ((FLAG) == USART_FLAG_EOB) || \
((FLAG) == USART_FLAG_CM) || ((FLAG) == USART_FLAG_PE))
/**
* @}
*/
/** @defgroup USART_Interrupt_definition
* @brief USART Interrupt definition
* USART_IT possible values
* Elements values convention: 0xZZZZYYXX
* XX: Position of the corresponding Interrupt
* YY: Register index
* ZZZZ: Flag position
* @{
*/
#define USART_IT_WU ((uint32_t)0x00140316) /*!< Not available for STM32F030 devices */
#define USART_IT_CM ((uint32_t)0x0011010E)
#define USART_IT_EOB ((uint32_t)0x000C011B) /*!< Not available for STM32F030 devices */
#define USART_IT_RTO ((uint32_t)0x000B011A)
#define USART_IT_PE ((uint32_t)0x00000108)
#define USART_IT_TXE ((uint32_t)0x00070107)
#define USART_IT_TC ((uint32_t)0x00060106)
#define USART_IT_RXNE ((uint32_t)0x00050105)
#define USART_IT_IDLE ((uint32_t)0x00040104)
#define USART_IT_LBD ((uint32_t)0x00080206) /*!< Not available for STM32F030 devices */
#define USART_IT_CTS ((uint32_t)0x0009030A)
#define USART_IT_ERR ((uint32_t)0x00000300)
#define USART_IT_ORE ((uint32_t)0x00030300)
#define USART_IT_NE ((uint32_t)0x00020300)
#define USART_IT_FE ((uint32_t)0x00010300)
#define IS_USART_CONFIG_IT(IT) (((IT) == USART_IT_PE) || ((IT) == USART_IT_TXE) || \
((IT) == USART_IT_TC) || ((IT) == USART_IT_RXNE) || \
((IT) == USART_IT_IDLE) || ((IT) == USART_IT_LBD) || \
((IT) == USART_IT_CTS) || ((IT) == USART_IT_ERR) || \
((IT) == USART_IT_RTO) || ((IT) == USART_IT_EOB) || \
((IT) == USART_IT_CM) || ((IT) == USART_IT_WU))
#define IS_USART_GET_IT(IT) (((IT) == USART_IT_PE) || ((IT) == USART_IT_TXE) || \
((IT) == USART_IT_TC) || ((IT) == USART_IT_RXNE) || \
((IT) == USART_IT_IDLE) || ((IT) == USART_IT_LBD) || \
((IT) == USART_IT_CTS) || ((IT) == USART_IT_ORE) || \
((IT) == USART_IT_NE) || ((IT) == USART_IT_FE) || \
((IT) == USART_IT_RTO) || ((IT) == USART_IT_EOB) || \
((IT) == USART_IT_CM) || ((IT) == USART_IT_WU))
#define IS_USART_CLEAR_IT(IT) (((IT) == USART_IT_TC) || ((IT) == USART_IT_PE) || \
((IT) == USART_IT_FE) || ((IT) == USART_IT_NE) || \
((IT) == USART_IT_ORE) || ((IT) == USART_IT_IDLE) || \
((IT) == USART_IT_LBD) || ((IT) == USART_IT_CTS) || \
((IT) == USART_IT_RTO) || ((IT) == USART_IT_EOB) || \
((IT) == USART_IT_CM) || ((IT) == USART_IT_WU))
/**
* @}
*/
/** @defgroup USART_Global_definition
* @{
*/
#define IS_USART_BAUDRATE(BAUDRATE) (((BAUDRATE) > 0) && ((BAUDRATE) < 0x005B8D81))
#define IS_USART_DE_ASSERTION_DEASSERTION_TIME(TIME) ((TIME) <= 0x1F)
#define IS_USART_AUTO_RETRY_COUNTER(COUNTER) ((COUNTER) <= 0x7)
#define IS_USART_TIMEOUT(TIMEOUT) ((TIMEOUT) <= 0x00FFFFFF)
#define IS_USART_DATA(DATA) ((DATA) <= 0x1FF)
/**
* @}
*/
/**
* @}
*/
/* Exported macro ------------------------------------------------------------*/
/* Exported functions ------------------------------------------------------- */
/* Initialization and Configuration functions *********************************/
void USART_DeInit(USART_TypeDef* USARTx);
void USART_Init(USART_TypeDef* USARTx, USART_InitTypeDef* USART_InitStruct);
void USART_StructInit(USART_InitTypeDef* USART_InitStruct);
void USART_ClockInit(USART_TypeDef* USARTx, USART_ClockInitTypeDef* USART_ClockInitStruct);
void USART_ClockStructInit(USART_ClockInitTypeDef* USART_ClockInitStruct);
void USART_Cmd(USART_TypeDef* USARTx, FunctionalState NewState);
void USART_DirectionModeCmd(USART_TypeDef* USARTx, uint32_t USART_DirectionMode, FunctionalState NewState);
void USART_SetPrescaler(USART_TypeDef* USARTx, uint8_t USART_Prescaler); /* Not available for STM32F030 devices */
void USART_OverSampling8Cmd(USART_TypeDef* USARTx, FunctionalState NewState);
void USART_OneBitMethodCmd(USART_TypeDef* USARTx, FunctionalState NewState);
void USART_MSBFirstCmd(USART_TypeDef* USARTx, FunctionalState NewState);
void USART_DataInvCmd(USART_TypeDef* USARTx, FunctionalState NewState);
void USART_InvPinCmd(USART_TypeDef* USARTx, uint32_t USART_InvPin, FunctionalState NewState);
void USART_SWAPPinCmd(USART_TypeDef* USARTx, FunctionalState NewState);
void USART_ReceiverTimeOutCmd(USART_TypeDef* USARTx, FunctionalState NewState);
void USART_SetReceiverTimeOut(USART_TypeDef* USARTx, uint32_t USART_ReceiverTimeOut);
/* STOP Mode functions ********************************************************/
void USART_STOPModeCmd(USART_TypeDef* USARTx, FunctionalState NewState);
void USART_StopModeWakeUpSourceConfig(USART_TypeDef* USARTx, uint32_t USART_WakeUpSource); /* Not available for STM32F030 devices */
/* AutoBaudRate functions *****************************************************/
void USART_AutoBaudRateCmd(USART_TypeDef* USARTx, FunctionalState NewState);
void USART_AutoBaudRateConfig(USART_TypeDef* USARTx, uint32_t USART_AutoBaudRate);
/* Data transfers functions ***************************************************/
void USART_SendData(USART_TypeDef* USARTx, uint16_t Data);
uint16_t USART_ReceiveData(USART_TypeDef* USARTx);
/* Multi-Processor Communication functions ************************************/
void USART_SetAddress(USART_TypeDef* USARTx, uint8_t USART_Address);
void USART_MuteModeWakeUpConfig(USART_TypeDef* USARTx, uint32_t USART_WakeUp);
void USART_MuteModeCmd(USART_TypeDef* USARTx, FunctionalState NewState);
void USART_AddressDetectionConfig(USART_TypeDef* USARTx, uint32_t USART_AddressLength);
/* LIN mode functions *********************************************************/
void USART_LINBreakDetectLengthConfig(USART_TypeDef* USARTx, uint32_t USART_LINBreakDetectLength); /* Not available for STM32F030 devices */
void USART_LINCmd(USART_TypeDef* USARTx, FunctionalState NewState); /* Not available for STM32F030 devices */
/* Half-duplex mode function **************************************************/
void USART_HalfDuplexCmd(USART_TypeDef* USARTx, FunctionalState NewState);
/* Smartcard mode functions ***************************************************/
void USART_SmartCardCmd(USART_TypeDef* USARTx, FunctionalState NewState); /* Not available for STM32F030 devices */
void USART_SmartCardNACKCmd(USART_TypeDef* USARTx, FunctionalState NewState); /* Not available for STM32F030 devices */
void USART_SetGuardTime(USART_TypeDef* USARTx, uint8_t USART_GuardTime); /* Not available for STM32F030 devices */
void USART_SetAutoRetryCount(USART_TypeDef* USARTx, uint8_t USART_AutoCount); /* Not available for STM32F030 devices */
void USART_SetBlockLength(USART_TypeDef* USARTx, uint8_t USART_BlockLength); /* Not available for STM32F030 devices */
/* IrDA mode functions ********************************************************/
void USART_IrDAConfig(USART_TypeDef* USARTx, uint32_t USART_IrDAMode); /* Not available for STM32F030 devices */
void USART_IrDACmd(USART_TypeDef* USARTx, FunctionalState NewState); /* Not available for STM32F030 devices */
/* RS485 mode functions *******************************************************/
void USART_DECmd(USART_TypeDef* USARTx, FunctionalState NewState);
void USART_DEPolarityConfig(USART_TypeDef* USARTx, uint32_t USART_DEPolarity);
void USART_SetDEAssertionTime(USART_TypeDef* USARTx, uint32_t USART_DEAssertionTime);
void USART_SetDEDeassertionTime(USART_TypeDef* USARTx, uint32_t USART_DEDeassertionTime);
/* DMA transfers management functions *****************************************/
void USART_DMACmd(USART_TypeDef* USARTx, uint32_t USART_DMAReq, FunctionalState NewState);
void USART_DMAReceptionErrorConfig(USART_TypeDef* USARTx, uint32_t USART_DMAOnError);
/* Interrupts and flags management functions **********************************/
void USART_ITConfig(USART_TypeDef* USARTx, uint32_t USART_IT, FunctionalState NewState);
void USART_RequestCmd(USART_TypeDef* USARTx, uint32_t USART_Request, FunctionalState NewState);
void USART_OverrunDetectionConfig(USART_TypeDef* USARTx, uint32_t USART_OVRDetection);
FlagStatus USART_GetFlagStatus(USART_TypeDef* USARTx, uint32_t USART_FLAG);
void USART_ClearFlag(USART_TypeDef* USARTx, uint32_t USART_FLAG);
ITStatus USART_GetITStatus(USART_TypeDef* USARTx, uint32_t USART_IT);
void USART_ClearITPendingBit(USART_TypeDef* USARTx, uint32_t USART_IT);
#ifdef __cplusplus
}
#endif
#endif /* __STM32F0XX_USART_H */
/**
* @}
*/
/**
* @}
*/
/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/

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/**
******************************************************************************
* @file stm32f0xx_wwdg.c
* @author MCD Application Team
* @version V1.3.0
* @date 16-January-2014
* @brief This file provides firmware functions to manage the following
* functionalities of the Window watchdog (WWDG) peripheral:
* + Prescaler, Refresh window and Counter configuration
* + WWDG activation
* + Interrupts and flags management
*
* @verbatim
*
==============================================================================
##### WWDG features #####
==============================================================================
[..] Once enabled the WWDG generates a system reset on expiry of a programmed
time period, unless the program refreshes the counter (downcounter)
before to reach 0x3F value (i.e. a reset is generated when the counter
value rolls over from 0x40 to 0x3F).
[..] An MCU reset is also generated if the counter value is refreshed
before the counter has reached the refresh window value. This
implies that the counter must be refreshed in a limited window.
[..] Once enabled the WWDG cannot be disabled except by a system reset.
[..] WWDGRST flag in RCC_CSR register can be used to inform when a WWDG
reset occurs.
[..] The WWDG counter input clock is derived from the APB clock divided
by a programmable prescaler.
[..] WWDG counter clock = PCLK1 / Prescaler.
[..] WWDG timeout = (WWDG counter clock) * (counter value).
[..] Min-max timeout value @32MHz (PCLK1): ~85us / ~43ms.
##### How to use this driver #####
==============================================================================
[..]
(#) Enable WWDG clock using RCC_APB1PeriphClockCmd(RCC_APB1Periph_WWDG, ENABLE)
function.
(#) Configure the WWDG prescaler using WWDG_SetPrescaler() function.
(#) Configure the WWDG refresh window using WWDG_SetWindowValue() function.
(#) Set the WWDG counter value and start it using WWDG_Enable() function.
When the WWDG is enabled the counter value should be configured to
a value greater than 0x40 to prevent generating an immediate reset.
(#) Optionally you can enable the Early wakeup interrupt which is
generated when the counter reach 0x40.
Once enabled this interrupt cannot be disabled except by a system reset.
(#) Then the application program must refresh the WWDG counter at regular
intervals during normal operation to prevent an MCU reset, using
WWDG_SetCounter() function. This operation must occur only when
the counter value is lower than the refresh window value,
programmed using WWDG_SetWindowValue().
* @endverbatim
*
******************************************************************************
* @attention
*
* <h2><center>&copy; COPYRIGHT(c) 2014 STMicroelectronics</center></h2>
*
* Redistribution and use in source and binary forms, with or without modification,
* are permitted provided that the following conditions are met:
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
* 3. Neither the name of STMicroelectronics nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
******************************************************************************
*/
/* Includes ------------------------------------------------------------------*/
#include "stm32f0xx_wwdg.h"
#include "stm32f0xx_rcc.h"
/** @addtogroup STM32F0xx_StdPeriph_Driver
* @{
*/
/** @defgroup WWDG
* @brief WWDG driver modules
* @{
*/
/* Private typedef -----------------------------------------------------------*/
/* Private define ------------------------------------------------------------*/
/* --------------------- WWDG registers bit mask ---------------------------- */
/* CFR register bit mask */
#define CFR_WDGTB_MASK ((uint32_t)0xFFFFFE7F)
#define CFR_W_MASK ((uint32_t)0xFFFFFF80)
#define BIT_MASK ((uint8_t)0x7F)
/* Private macro -------------------------------------------------------------*/
/* Private variables ---------------------------------------------------------*/
/* Private function prototypes -----------------------------------------------*/
/* Private functions ---------------------------------------------------------*/
/** @defgroup WWDG_Private_Functions
* @{
*/
/** @defgroup WWDG_Group1 Prescaler, Refresh window and Counter configuration functions
* @brief Prescaler, Refresh window and Counter configuration functions
*
@verbatim
==============================================================================
##### Prescaler, Refresh window and Counter configuration functions #####
==============================================================================
@endverbatim
* @{
*/
/**
* @brief Deinitializes the WWDG peripheral registers to their default reset values.
* @param None
* @retval None
*/
void WWDG_DeInit(void)
{
RCC_APB1PeriphResetCmd(RCC_APB1Periph_WWDG, ENABLE);
RCC_APB1PeriphResetCmd(RCC_APB1Periph_WWDG, DISABLE);
}
/**
* @brief Sets the WWDG Prescaler.
* @param WWDG_Prescaler: specifies the WWDG Prescaler.
* This parameter can be one of the following values:
* @arg WWDG_Prescaler_1: WWDG counter clock = (PCLK1/4096)/1
* @arg WWDG_Prescaler_2: WWDG counter clock = (PCLK1/4096)/2
* @arg WWDG_Prescaler_4: WWDG counter clock = (PCLK1/4096)/4
* @arg WWDG_Prescaler_8: WWDG counter clock = (PCLK1/4096)/8
* @retval None
*/
void WWDG_SetPrescaler(uint32_t WWDG_Prescaler)
{
uint32_t tmpreg = 0;
/* Check the parameters */
assert_param(IS_WWDG_PRESCALER(WWDG_Prescaler));
/* Clear WDGTB[1:0] bits */
tmpreg = WWDG->CFR & CFR_WDGTB_MASK;
/* Set WDGTB[1:0] bits according to WWDG_Prescaler value */
tmpreg |= WWDG_Prescaler;
/* Store the new value */
WWDG->CFR = tmpreg;
}
/**
* @brief Sets the WWDG window value.
* @param WindowValue: specifies the window value to be compared to the downcounter.
* This parameter value must be lower than 0x80.
* @retval None
*/
void WWDG_SetWindowValue(uint8_t WindowValue)
{
__IO uint32_t tmpreg = 0;
/* Check the parameters */
assert_param(IS_WWDG_WINDOW_VALUE(WindowValue));
/* Clear W[6:0] bits */
tmpreg = WWDG->CFR & CFR_W_MASK;
/* Set W[6:0] bits according to WindowValue value */
tmpreg |= WindowValue & (uint32_t) BIT_MASK;
/* Store the new value */
WWDG->CFR = tmpreg;
}
/**
* @brief Enables the WWDG Early Wakeup interrupt(EWI).
* @note Once enabled this interrupt cannot be disabled except by a system reset.
* @param None
* @retval None
*/
void WWDG_EnableIT(void)
{
WWDG->CFR |= WWDG_CFR_EWI;
}
/**
* @brief Sets the WWDG counter value.
* @param Counter: specifies the watchdog counter value.
* This parameter must be a number between 0x40 and 0x7F (to prevent
* generating an immediate reset).
* @retval None
*/
void WWDG_SetCounter(uint8_t Counter)
{
/* Check the parameters */
assert_param(IS_WWDG_COUNTER(Counter));
/* Write to T[6:0] bits to configure the counter value, no need to do
a read-modify-write; writing a 0 to WDGA bit does nothing */
WWDG->CR = Counter & BIT_MASK;
}
/**
* @}
*/
/** @defgroup WWDG_Group2 WWDG activation functions
* @brief WWDG activation functions
*
@verbatim
==============================================================================
##### WWDG activation function #####
==============================================================================
@endverbatim
* @{
*/
/**
* @brief Enables WWDG and load the counter value.
* @param Counter: specifies the watchdog counter value.
* This parameter must be a number between 0x40 and 0x7F (to prevent
* generating an immediate reset).
* @retval None
*/
void WWDG_Enable(uint8_t Counter)
{
/* Check the parameters */
assert_param(IS_WWDG_COUNTER(Counter));
WWDG->CR = WWDG_CR_WDGA | Counter;
}
/**
* @}
*/
/** @defgroup WWDG_Group3 Interrupts and flags management functions
* @brief Interrupts and flags management functions
*
@verbatim
==============================================================================
##### Interrupts and flags management functions #####
==============================================================================
@endverbatim
* @{
*/
/**
* @brief Checks whether the Early Wakeup interrupt flag is set or not.
* @param None
* @retval The new state of the Early Wakeup interrupt flag (SET or RESET).
*/
FlagStatus WWDG_GetFlagStatus(void)
{
FlagStatus bitstatus = RESET;
if ((WWDG->SR) != (uint32_t)RESET)
{
bitstatus = SET;
}
else
{
bitstatus = RESET;
}
return bitstatus;
}
/**
* @brief Clears Early Wakeup interrupt flag.
* @param None
* @retval None
*/
void WWDG_ClearFlag(void)
{
WWDG->SR = (uint32_t)RESET;
}
/**
* @}
*/
/**
* @}
*/
/**
* @}
*/
/**
* @}
*/
/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/

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/**
******************************************************************************
* @file stm32f0xx_wwdg.h
* @author MCD Application Team
* @version V1.3.0
* @date 16-January-2014
* @brief This file contains all the functions prototypes for the WWDG
* firmware library.
******************************************************************************
* @attention
*
* <h2><center>&copy; COPYRIGHT(c) 2014 STMicroelectronics</center></h2>
*
* Redistribution and use in source and binary forms, with or without modification,
* are permitted provided that the following conditions are met:
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
* 3. Neither the name of STMicroelectronics nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
******************************************************************************
*/
/* Define to prevent recursive inclusion -------------------------------------*/
#ifndef __STM32F0XX_WWDG_H
#define __STM32F0XX_WWDG_H
#ifdef __cplusplus
extern "C" {
#endif
/* Includes ------------------------------------------------------------------*/
#include "stm32f0xx.h"
/** @addtogroup STM32F0xx_StdPeriph_Driver
* @{
*/
/** @addtogroup WWDG
* @{
*/
/* Exported types ------------------------------------------------------------*/
/* Exported constants --------------------------------------------------------*/
/** @defgroup WWDG_Exported_Constants
* @{
*/
/** @defgroup WWDG_Prescaler
* @{
*/
#define WWDG_Prescaler_1 ((uint32_t)0x00000000)
#define WWDG_Prescaler_2 ((uint32_t)0x00000080)
#define WWDG_Prescaler_4 ((uint32_t)0x00000100)
#define WWDG_Prescaler_8 ((uint32_t)0x00000180)
#define IS_WWDG_PRESCALER(PRESCALER) (((PRESCALER) == WWDG_Prescaler_1) || \
((PRESCALER) == WWDG_Prescaler_2) || \
((PRESCALER) == WWDG_Prescaler_4) || \
((PRESCALER) == WWDG_Prescaler_8))
#define IS_WWDG_WINDOW_VALUE(VALUE) ((VALUE) <= 0x7F)
#define IS_WWDG_COUNTER(COUNTER) (((COUNTER) >= 0x40) && ((COUNTER) <= 0x7F))
/**
* @}
*/
/**
* @}
*/
/* Exported macro ------------------------------------------------------------*/
/* Exported functions ------------------------------------------------------- */
/* Function used to set the WWDG configuration to the default reset state ****/
void WWDG_DeInit(void);
/* Prescaler, Refresh window and Counter configuration functions **************/
void WWDG_SetPrescaler(uint32_t WWDG_Prescaler);
void WWDG_SetWindowValue(uint8_t WindowValue);
void WWDG_EnableIT(void);
void WWDG_SetCounter(uint8_t Counter);
/* WWDG activation functions **************************************************/
void WWDG_Enable(uint8_t Counter);
/* Interrupts and flags management functions **********************************/
FlagStatus WWDG_GetFlagStatus(void);
void WWDG_ClearFlag(void);
#ifdef __cplusplus
}
#endif
#endif /* __STM32F0XX_WWDG_H */
/**
* @}
*/
/**
* @}
*/
/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/

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/**
******************************************************************************
* @file system_stm32f0xx.c
* @author MCD Application Team
* @version V1.0.1
* @date 29-May-2012
* @brief CMSIS Cortex-M0 Device Peripheral Access Layer System Source File.
* This file contains the system clock configuration for STM32F0xx devices,
* and is generated by the clock configuration tool
* STM32f0xx_Clock_Configuration_V1.0.1.xls
*
* 1. This file provides two functions and one global variable to be called from
* user application:
* - SystemInit(): Setups the system clock (System clock source, PLL Multiplier
* and Divider factors, AHB/APBx prescalers and Flash settings),
* depending on the configuration made in the clock xls tool.
* This function is called at startup just after reset and
* before branch to main program. This call is made inside
* the "startup_stm32f0xx.s" file.
*
* - SystemCoreClock variable: Contains the core clock (HCLK), it can be used
* by the user application to setup the SysTick
* timer or configure other parameters.
*
* - SystemCoreClockUpdate(): Updates the variable SystemCoreClock and must
* be called whenever the core clock is changed
* during program execution.
*
* 2. After each device reset the HSI (8 MHz Range) is used as system clock source.
* Then SystemInit() function is called, in "startup_stm32f0xx.s" file, to
* configure the system clock before to branch to main program.
*
* 3. If the system clock source selected by user fails to startup, the SystemInit()
* function will do nothing and HSI still used as system clock source. User can
* add some code to deal with this issue inside the SetSysClock() function.
*
* 4. The default value of HSE crystal is set to 8MHz, refer to "HSE_VALUE" define
* in "stm32f0xx.h" file. When HSE is used as system clock source, directly or
* through PLL, and you are using different crystal you have to adapt the HSE
* value to your own configuration.
*
* 5. This file configures the system clock as follows:
*=============================================================================
*=============================================================================
* System Clock source | PLL(HSI)
*-----------------------------------------------------------------------------
* SYSCLK(Hz) | 48000000
*-----------------------------------------------------------------------------
* HCLK(Hz) | 48000000
*-----------------------------------------------------------------------------
* AHB Prescaler | 1
*-----------------------------------------------------------------------------
* APB Prescaler | 1
*-----------------------------------------------------------------------------
* HSE Frequency(Hz) | NA
*----------------------------------------------------------------------------
* PLLMUL | 12
*-----------------------------------------------------------------------------
* PREDIV | 2
*-----------------------------------------------------------------------------
* I2S input clock(Hz) | 48000000
* |
* To achieve the following I2S config: |
* - Master clock output (MCKO): OFF |
* - Frame wide : 16bit |
* - Audio sampling freq (KHz) : 44.1 |
* - Error % : 0.2674 |
*-----------------------------------------------------------------------------
* Flash Latency(WS) | 1
*-----------------------------------------------------------------------------
* Prefetch Buffer | ON
*-----------------------------------------------------------------------------
******************************************************************************
* @attention
*
* <h2><center>&copy; COPYRIGHT 2012 STMicroelectronics</center></h2>
*
* Licensed under MCD-ST Liberty SW License Agreement V2, (the "License");
* You may not use this file except in compliance with the License.
* You may obtain a copy of the License at:
*
* http://www.st.com/software_license_agreement_liberty_v2
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
******************************************************************************
*/
/** @addtogroup CMSIS
* @{
*/
/** @addtogroup stm32f0xx_system
* @{
*/
/** @addtogroup STM32F0xx_System_Private_Includes
* @{
*/
#include "stm32f0xx.h"
/**
* @}
*/
/** @addtogroup STM32F0xx_System_Private_TypesDefinitions
* @{
*/
/**
* @}
*/
/** @addtogroup STM32F0xx_System_Private_Defines
* @{
*/
/**
* @}
*/
/** @addtogroup STM32F0xx_System_Private_Macros
* @{
*/
/**
* @}
*/
/** @addtogroup STM32F0xx_System_Private_Variables
* @{
*/
uint32_t SystemCoreClock = 48000000;
__I uint8_t AHBPrescTable[16] = {0, 0, 0, 0, 0, 0, 0, 0, 1, 2, 3, 4, 6, 7, 8, 9};
/**
* @}
*/
/** @addtogroup STM32F0xx_System_Private_FunctionPrototypes
* @{
*/
static void SetSysClock(void);
/**
* @}
*/
/** @addtogroup STM32F0xx_System_Private_Functions
* @{
*/
/**
* @brief Setup the microcontroller system.
* Initialize the Embedded Flash Interface, the PLL and update the
* SystemCoreClock variable.
* @param None
* @retval None
*/
void SystemInit (void)
{
/* Set HSION bit */
RCC->CR |= (uint32_t)0x00000001;
/* Reset SW[1:0], HPRE[3:0], PPRE[2:0], ADCPRE and MCOSEL[2:0] bits */
RCC->CFGR &= (uint32_t)0xF8FFB80C;
/* Reset HSEON, CSSON and PLLON bits */
RCC->CR &= (uint32_t)0xFEF6FFFF;
/* Reset HSEBYP bit */
RCC->CR &= (uint32_t)0xFFFBFFFF;
/* Reset PLLSRC, PLLXTPRE and PLLMUL[3:0] bits */
RCC->CFGR &= (uint32_t)0xFFC0FFFF;
/* Reset PREDIV1[3:0] bits */
RCC->CFGR2 &= (uint32_t)0xFFFFFFF0;
/* Reset USARTSW[1:0], I2CSW, CECSW and ADCSW bits */
RCC->CFGR3 &= (uint32_t)0xFFFFFEAC;
/* Reset HSI14 bit */
RCC->CR2 &= (uint32_t)0xFFFFFFFE;
/* Disable all interrupts */
RCC->CIR = 0x00000000;
/* Configure the System clock frequency, AHB/APBx prescalers and Flash settings */
SetSysClock();
}
/**
* @brief Update SystemCoreClock according to Clock Register Values
* The SystemCoreClock variable contains the core clock (HCLK), it can
* be used by the user application to setup the SysTick timer or configure
* other parameters.
*
* @note Each time the core clock (HCLK) changes, this function must be called
* to update SystemCoreClock variable value. Otherwise, any configuration
* based on this variable will be incorrect.
*
* @note - The system frequency computed by this function is not the real
* frequency in the chip. It is calculated based on the predefined
* constant and the selected clock source:
*
* - If SYSCLK source is HSI, SystemCoreClock will contain the HSI_VALUE(*)
*
* - If SYSCLK source is HSE, SystemCoreClock will contain the HSE_VALUE(**)
*
* - If SYSCLK source is PLL, SystemCoreClock will contain the HSE_VALUE(**)
* or HSI_VALUE(*) multiplied/divided by the PLL factors.
*
* (*) HSI_VALUE is a constant defined in stm32f0xx.h file (default value
* 8 MHz) but the real value may vary depending on the variations
* in voltage and temperature.
*
* (**) HSE_VALUE is a constant defined in stm32f0xx.h file (default value
* 8 MHz), user has to ensure that HSE_VALUE is same as the real
* frequency of the crystal used. Otherwise, this function may
* have wrong result.
*
* - The result of this function could be not correct when using fractional
* value for HSE crystal.
* @param None
* @retval None
*/
void SystemCoreClockUpdate (void)
{
uint32_t tmp = 0, pllmull = 0, pllsource = 0, prediv1factor = 0;
/* Get SYSCLK source -------------------------------------------------------*/
tmp = RCC->CFGR & RCC_CFGR_SWS;
switch (tmp)
{
case 0x00: /* HSI used as system clock */
SystemCoreClock = HSI_VALUE;
break;
case 0x04: /* HSE used as system clock */
SystemCoreClock = HSE_VALUE;
break;
case 0x08: /* PLL used as system clock */
/* Get PLL clock source and multiplication factor ----------------------*/
pllmull = RCC->CFGR & RCC_CFGR_PLLMULL;
pllsource = RCC->CFGR & RCC_CFGR_PLLSRC;
pllmull = ( pllmull >> 18) + 2;
if (pllsource == 0x00)
{
/* HSI oscillator clock divided by 2 selected as PLL clock entry */
SystemCoreClock = (HSI_VALUE >> 1) * pllmull;
}
else
{
prediv1factor = (RCC->CFGR2 & RCC_CFGR2_PREDIV1) + 1;
/* HSE oscillator clock selected as PREDIV1 clock entry */
SystemCoreClock = (HSE_VALUE / prediv1factor) * pllmull;
}
break;
default: /* HSI used as system clock */
SystemCoreClock = HSI_VALUE;
break;
}
/* Compute HCLK clock frequency ----------------*/
/* Get HCLK prescaler */
tmp = AHBPrescTable[((RCC->CFGR & RCC_CFGR_HPRE) >> 4)];
/* HCLK clock frequency */
SystemCoreClock >>= tmp;
}
/**
* @brief Configures the System clock frequency, AHB/APBx prescalers and Flash
* settings.
* @note This function should be called only once the RCC clock configuration
* is reset to the default reset state (done in SystemInit() function).
* @param None
* @retval None
*/
static void SetSysClock(void)
{
/******************************************************************************/
/* PLL (clocked by HSI) used as System clock source */
/******************************************************************************/
/* At this stage the HSI is already enabled and used as System clock source */
/* SYSCLK, HCLK, PCLK configuration ----------------------------------------*/
/* Enable Prefetch Buffer and set Flash Latency */
FLASH->ACR = FLASH_ACR_PRFTBE | FLASH_ACR_LATENCY;
/* HCLK = SYSCLK / 1 */
RCC->CFGR |= (uint32_t)RCC_CFGR_HPRE_DIV1;
/* PCLK = HCLK / 1 */
RCC->CFGR |= (uint32_t)RCC_CFGR_PPRE_DIV1;
/* PLL configuration */
RCC->CFGR &= (uint32_t)((uint32_t)~(RCC_CFGR_PLLSRC | RCC_CFGR_PLLXTPRE | RCC_CFGR_PLLMULL));
RCC->CFGR |= (uint32_t)(RCC_CFGR_PLLSRC_HSI_Div2 | RCC_CFGR_PLLXTPRE_PREDIV1 | RCC_CFGR_PLLMULL12);
/* Enable PLL */
RCC->CR |= RCC_CR_PLLON;
/* Wait till PLL is ready */
while((RCC->CR & RCC_CR_PLLRDY) == 0)
{
}
/* Select PLL as system clock source */
RCC->CFGR &= (uint32_t)((uint32_t)~(RCC_CFGR_SW));
RCC->CFGR |= (uint32_t)RCC_CFGR_SW_PLL;
/* Wait till PLL is used as system clock source */
while ((RCC->CFGR & (uint32_t)RCC_CFGR_SWS) != (uint32_t)RCC_CFGR_SWS_PLL)
{
}
}
/**
* @}
*/
/**
* @}
*/
/**
* @}
*/
/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/

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/**
******************************************************************************
* @file system_stm32f0xx.c
* @author MCD Application Team
* @version V1.0.1
* @date 12-January-2014
* @brief CMSIS Cortex-M0 Device Peripheral Access Layer System Source File.
* This file contains the system clock configuration for STM32F0xx devices,
* and is generated by the clock configuration tool
* STM32F0xx_Clock_Configuration_V1.0.1.xls
*
* 1. This file provides two functions and one global variable to be called from
* user application:
* - SystemInit(): Setups the system clock (System clock source, PLL Multiplier
* and Divider factors, AHB/APBx prescalers and Flash settings),
* depending on the configuration made in the clock xls tool.
* This function is called at startup just after reset and
* before branch to main program. This call is made inside
* the "startup_stm32f0xx.s" file.
*
* - SystemCoreClock variable: Contains the core clock (HCLK), it can be used
* by the user application to setup the SysTick
* timer or configure other parameters.
*
* - SystemCoreClockUpdate(): Updates the variable SystemCoreClock and must
* be called whenever the core clock is changed
* during program execution.
*
* 2. After each device reset the HSI (8 MHz Range) is used as system clock source.
* Then SystemInit() function is called, in "startup_stm32f0xx.s" file, to
* configure the system clock before to branch to main program.
*
* 3. If the system clock source selected by user fails to startup, the SystemInit()
* function will do nothing and HSI still used as system clock source. User can
* add some code to deal with this issue inside the SetSysClock() function.
*
* 4. The default value of HSE crystal is set to 8MHz, refer to "HSE_VALUE" define
* in "stm32f0xx.h" file. When HSE is used as system clock source, directly or
* through PLL, and you are using different crystal you have to adapt the HSE
* value to your own configuration.
*
* 5. This file configures the system clock as follows:
*=============================================================================
*=============================================================================
* System Clock source | HSI
*-----------------------------------------------------------------------------
* SYSCLK(Hz) | 8000000
*-----------------------------------------------------------------------------
* HCLK(Hz) | 8000000
*-----------------------------------------------------------------------------
* AHB Prescaler | 1
*-----------------------------------------------------------------------------
* APB Prescaler | 1
*-----------------------------------------------------------------------------
* HSE Frequency(Hz) | NA
*----------------------------------------------------------------------------
* PLLMUL | NA
*-----------------------------------------------------------------------------
* PREDIV | NA
*-----------------------------------------------------------------------------
* Flash Latency(WS) | 0
*-----------------------------------------------------------------------------
* Prefetch Buffer | ON
*-----------------------------------------------------------------------------
******************************************************************************
* @attention
*
* <h2><center>&copy; COPYRIGHT(c) 2014 STMicroelectronics</center></h2>
*
* Redistribution and use in source and binary forms, with or without modification,
* are permitted provided that the following conditions are met:
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
* 3. Neither the name of STMicroelectronics nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
******************************************************************************
*/
/** @addtogroup CMSIS
* @{
*/
/** @addtogroup stm32f0xx_system
* @{
*/
/** @addtogroup STM32F0xx_System_Private_Includes
* @{
*/
#include "stm32f0xx.h"
/**
* @}
*/
/** @addtogroup STM32F0xx_System_Private_TypesDefinitions
* @{
*/
/**
* @}
*/
/** @addtogroup STM32F0xx_System_Private_Defines
* @{
*/
/**
* @}
*/
/** @addtogroup STM32F0xx_System_Private_Macros
* @{
*/
/**
* @}
*/
/** @addtogroup STM32F0xx_System_Private_Variables
* @{
*/
uint32_t SystemCoreClock = 8000000;
__I uint8_t AHBPrescTable[16] = {0, 0, 0, 0, 0, 0, 0, 0, 1, 2, 3, 4, 6, 7, 8, 9};
/**
* @}
*/
/** @addtogroup STM32F0xx_System_Private_FunctionPrototypes
* @{
*/
static void SetSysClock(void);
/**
* @}
*/
/** @addtogroup STM32F0xx_System_Private_Functions
* @{
*/
/**
* @brief Setup the microcontroller system.
* Initialize the Embedded Flash Interface, the PLL and update the
* SystemCoreClock variable.
* @param None
* @retval None
*/
void SystemInit (void)
{
/* Set HSION bit */
RCC->CR |= (uint32_t)0x00000001;
/* Reset SW[1:0], HPRE[3:0], PPRE[2:0], ADCPRE and MCOSEL[2:0] bits */
RCC->CFGR &= (uint32_t)0xF8FFB80C;
/* Reset HSEON, CSSON and PLLON bits */
RCC->CR &= (uint32_t)0xFEF6FFFF;
/* Reset HSEBYP bit */
RCC->CR &= (uint32_t)0xFFFBFFFF;
/* Reset PLLSRC, PLLXTPRE and PLLMUL[3:0] bits */
RCC->CFGR &= (uint32_t)0xFFC0FFFF;
/* Reset PREDIV1[3:0] bits */
RCC->CFGR2 &= (uint32_t)0xFFFFFFF0;
/* Reset USARTSW[1:0], I2CSW, CECSW and ADCSW bits */
RCC->CFGR3 &= (uint32_t)0xFFFFFEAC;
/* Reset HSI14 bit */
RCC->CR2 &= (uint32_t)0xFFFFFFFE;
/* Disable all interrupts */
RCC->CIR = 0x00000000;
/* Configure the System clock frequency, AHB/APBx prescalers and Flash settings */
SetSysClock();
}
/**
* @brief Update SystemCoreClock according to Clock Register Values
* The SystemCoreClock variable contains the core clock (HCLK), it can
* be used by the user application to setup the SysTick timer or configure
* other parameters.
*
* @note Each time the core clock (HCLK) changes, this function must be called
* to update SystemCoreClock variable value. Otherwise, any configuration
* based on this variable will be incorrect.
*
* @note - The system frequency computed by this function is not the real
* frequency in the chip. It is calculated based on the predefined
* constant and the selected clock source:
*
* - If SYSCLK source is HSI, SystemCoreClock will contain the HSI_VALUE(*)
*
* - If SYSCLK source is HSE, SystemCoreClock will contain the HSE_VALUE(**)
*
* - If SYSCLK source is PLL, SystemCoreClock will contain the HSE_VALUE(**)
* or HSI_VALUE(*) multiplied/divided by the PLL factors.
*
* (*) HSI_VALUE is a constant defined in stm32f0xx.h file (default value
* 8 MHz) but the real value may vary depending on the variations
* in voltage and temperature.
*
* (**) HSE_VALUE is a constant defined in stm32f0xx.h file (default value
* 8 MHz), user has to ensure that HSE_VALUE is same as the real
* frequency of the crystal used. Otherwise, this function may
* have wrong result.
*
* - The result of this function could be not correct when using fractional
* value for HSE crystal.
* @param None
* @retval None
*/
void SystemCoreClockUpdate (void)
{
uint32_t tmp = 0, pllmull = 0, pllsource = 0, prediv1factor = 0;
/* Get SYSCLK source -------------------------------------------------------*/
tmp = RCC->CFGR & RCC_CFGR_SWS;
switch (tmp)
{
case 0x00: /* HSI used as system clock */
SystemCoreClock = HSI_VALUE;
break;
case 0x04: /* HSE used as system clock */
SystemCoreClock = HSE_VALUE;
break;
case 0x08: /* PLL used as system clock */
/* Get PLL clock source and multiplication factor ----------------------*/
pllmull = RCC->CFGR & RCC_CFGR_PLLMULL;
pllsource = RCC->CFGR & RCC_CFGR_PLLSRC;
pllmull = ( pllmull >> 18) + 2;
if (pllsource == 0x00)
{
/* HSI oscillator clock divided by 2 selected as PLL clock entry */
SystemCoreClock = (HSI_VALUE >> 1) * pllmull;
}
else
{
prediv1factor = (RCC->CFGR2 & RCC_CFGR2_PREDIV1) + 1;
/* HSE oscillator clock selected as PREDIV1 clock entry */
SystemCoreClock = (HSE_VALUE / prediv1factor) * pllmull;
}
break;
default: /* HSI used as system clock */
SystemCoreClock = HSI_VALUE;
break;
}
/* Compute HCLK clock frequency ----------------*/
/* Get HCLK prescaler */
tmp = AHBPrescTable[((RCC->CFGR & RCC_CFGR_HPRE) >> 4)];
/* HCLK clock frequency */
SystemCoreClock >>= tmp;
}
/**
* @brief Configures the System clock frequency, AHB/APBx prescalers and Flash
* settings.
* @note This function should be called only once the RCC clock configuration
* is reset to the default reset state (done in SystemInit() function).
* @param None
* @retval None
*/
static void SetSysClock(void)
{
/******************************************************************************/
/* HSI used as System clock source */
/******************************************************************************/
/* At this stage the HSI is already enabled and used as System clock source */
/* Enable Prefetch Buffer and Flash 0 wait state */
FLASH->ACR = FLASH_ACR_PRFTBE;
/* HCLK = SYSCLK / 1 */
RCC->CFGR |= (uint32_t)RCC_CFGR_HPRE_DIV1;
/* PCLK = HCLK / 1 */
RCC->CFGR |= (uint32_t)RCC_CFGR_PPRE_DIV1;
}
/**
* @}
*/
/**
* @}
*/
/**
* @}
*/
/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/

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/**
******************************************************************************
* @file system_stm32f0xx.h
* @author MCD Application Team
* @version V1.3.1
* @date 17-January-2014
* @brief CMSIS Cortex-M0 Device Peripheral Access Layer System Header File.
******************************************************************************
* @attention
*
* <h2><center>&copy; COPYRIGHT(c) 2014 STMicroelectronics</center></h2>
*
* Redistribution and use in source and binary forms, with or without modification,
* are permitted provided that the following conditions are met:
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
* 3. Neither the name of STMicroelectronics nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
******************************************************************************
*/
/** @addtogroup CMSIS
* @{
*/
/** @addtogroup stm32f0xx_system
* @{
*/
/**
* @brief Define to prevent recursive inclusion
*/
#ifndef __SYSTEM_STM32F0XX_H
#define __SYSTEM_STM32F0XX_H
#ifdef __cplusplus
extern "C" {
#endif
/** @addtogroup STM32F0xx_System_Includes
* @{
*/
/**
* @}
*/
/** @addtogroup STM32F0xx_System_Exported_types
* @{
*/
extern uint32_t SystemCoreClock; /*!< System Clock Frequency (Core Clock) */
/**
* @}
*/
/** @addtogroup STM32F0xx_System_Exported_Constants
* @{
*/
/**
* @}
*/
/** @addtogroup STM32F0xx_System_Exported_Macros
* @{
*/
/**
* @}
*/
/** @addtogroup STM32F0xx_System_Exported_Functions
* @{
*/
extern void SystemInit(void);
extern void SystemCoreClockUpdate(void);
/**
* @}
*/
#ifdef __cplusplus
}
#endif
#endif /*__SYSTEM_STM32F0XX_H */
/**
* @}
*/
/**
* @}
*/
/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/

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/* mbed Microcontroller Library
*******************************************************************************
* Copyright (c) 2014, STMicroelectronics
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
* 3. Neither the name of STMicroelectronics nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*******************************************************************************
*/
#ifndef MBED_PERIPHERALNAMES_H
#define MBED_PERIPHERALNAMES_H
#include "cmsis.h"
#ifdef __cplusplus
extern "C" {
#endif
typedef enum {
ADC_1 = (int)ADC1_BASE,
ADC_2 = (int)ADC_BASE
} ADCName;
typedef enum {
DAC_1 = (int)DAC_BASE
} DACName;
typedef enum {
UART_1 = (int)USART1_BASE,
UART_2 = (int)USART2_BASE
} UARTName;
#define STDIO_UART_TX PA_2
#define STDIO_UART_RX PA_3
#define STDIO_UART UART_2
typedef enum {
SPI_1 = (int)SPI1_BASE,
SPI_2 = (int)SPI2_BASE
} SPIName;
typedef enum {
I2C_1 = (int)I2C1_BASE,
I2C_2 = (int)I2C2_BASE
} I2CName;
typedef enum {
TIM_3 = (int)TIM3_BASE,
TIM_14 = (int)TIM14_BASE,
TIM_16 = (int)TIM16_BASE
} PWMName;
#ifdef __cplusplus
}
#endif
#endif

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/* mbed Microcontroller Library
*******************************************************************************
* Copyright (c) 2014, STMicroelectronics
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
* 3. Neither the name of STMicroelectronics nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*******************************************************************************
*/
#ifndef MBED_PINNAMES_H
#define MBED_PINNAMES_H
#include "cmsis.h"
#ifdef __cplusplus
extern "C" {
#endif
// MODE (see GPIOMode_TypeDef structure)
// OTYPE (see GPIOOType_TypeDef structure)
// PUPD (see GPIOPuPd_TypeDef structure)
// AFNUM (see AF_mapping constant table, 0xFF is not used)
#define STM_PIN_DATA(MODE, OTYPE, PUPD, AFNUM) (((AFNUM)<<8)|((PUPD)<<4)|((OTYPE)<<2)|((MODE)<<0))
#define STM_PIN_MODE(X) (((X)>>0) & 0x3)
#define STM_PIN_OTYPE(X) (((X)>>2) & 0x1)
#define STM_PIN_PUPD(X) (((X)>>4) & 0x3)
#define STM_PIN_AFNUM(X) (((X)>>8) & 0xF)
// High nibble = port number (0=A, 1=B, 2=C, 3=D, 4=E, 5=F, 6=G, 7=H)
// Low nibble = pin number
#define STM_PORT(X) (((uint32_t)(X) >> 4) & 0xF)
#define STM_PIN(X) ((uint32_t)(X) & 0xF)
typedef enum {
PIN_INPUT,
PIN_OUTPUT
} PinDirection;
typedef enum {
PA_0 = 0x00,
PA_1 = 0x01,
PA_2 = 0x02,
PA_3 = 0x03,
PA_4 = 0x04,
PA_5 = 0x05,
PA_6 = 0x06,
PA_7 = 0x07,
PA_8 = 0x08,
PA_9 = 0x09,
PA_10 = 0x0A,
PA_11 = 0x0B,
PA_12 = 0x0C,
PA_13 = 0x0D,
PA_14 = 0x0E,
PA_15 = 0x0F,
PB_0 = 0x10,
PB_1 = 0x11,
PB_2 = 0x12,
PB_3 = 0x13,
PB_4 = 0x14,
PB_5 = 0x15,
PB_6 = 0x16,
PB_7 = 0x17,
PB_8 = 0x18,
PB_9 = 0x19,
PB_10 = 0x1A,
PB_11 = 0x1B,
PB_12 = 0x1C,
PB_13 = 0x1D,
PB_14 = 0x1E,
PB_15 = 0x1F,
PC_0 = 0x20,
PC_1 = 0x21,
PC_2 = 0x22,
PC_3 = 0x23,
PC_4 = 0x24,
PC_5 = 0x25,
PC_6 = 0x26,
PC_7 = 0x27,
PC_8 = 0x28,
PC_9 = 0x29,
PC_10 = 0x2A,
PC_11 = 0x2B,
PC_12 = 0x2C,
PC_13 = 0x2D,
PC_14 = 0x2E,
PC_15 = 0x2F,
PD_2 = 0x32,
PF_0 = 0x50,
PF_1 = 0x51,
PF_4 = 0x54,
PF_5 = 0x55,
PF_6 = 0x56,
PF_7 = 0x57,
// Arduino connector namings
A0 = PC_0,
A1 = PC_1,
A2 = PC_2,
A3 = PC_3,
A4 = PC_4,
A5 = PC_5,
D0 = PA_3,
D1 = PA_2,
D2 = PB_12,
D3 = PB_11,
D4 = PA_7,
D5 = PB_9,
D6 = PB_8,
D7 = PA_6,
D8 = PA_5,
D9 = PA_4,
D10 = PA_11,
D11 = PB_5,
D12 = PB_4,
D13 = PB_3,
// D14 = PB_9,
// D15 = PB_8,
// STM32F0-Discovery(STM32F051R8) connector namings
PA0 = PA_0,
PA1 = PA_1,
PA2 = PA_2,
PA3 = PA_3,
PA4 = PA_4,
PA5 = PA_5,
PA6 = PA_6,
PA7 = PA_7,
PA8 = PA_8,
PA9 = PA_9,
PA10 = PA_10,
PA11 = PA_11,
PA12 = PA_12,
PA13 = PA_13,
PA14 = PA_14,
PA15 = PA_15,
PC0 = PC_0,
PC1 = PC_1,
PC2 = PC_2,
PC3 = PC_3,
PC4 = PC_4,
PC5 = PC_5,
PC6 = PC_6,
PC7 = PC_7,
PC8 = PC_8,
PC9 = PC_9,
PC10 = PC_10,
PC11 = PC_13,
PC12 = PC_12,
PC13 = PC_13,
PC14 = PC_14,
PC15 = PC_15,
PD2 = PD_2,
PB0 = PB_0,
PB1 = PB_1,
PB2 = PB_2,
PB3 = PB_3,
PB4 = PB_4,
PB5 = PB_5,
PB6 = PB_6,
PB7 = PB_7,
PB8 = PB_8,
PB9 = PB_9,
PB10 = PB_10,
PB11 = PB_11,
PB12 = PB_12,
PB13 = PB_13,
PB14 = PB_14,
PB15 = PB_15,
// Generic signals namings
LED1 = PC_9,
LED2 = PC_8,
LED3 = PC_9,
LED4 = PC_8,
USER_BUTTON = PA_0,
USBTX = PA_2,
USBRX = PA_3,
I2C_SCL = PB_8,
I2C_SDA = PB_9,
SPI_MOSI = PA_7,
SPI_MISO = PA_6,
SPI_SCK = PA_5,
SPI_CS = PB_6,
PWM_OUT = PB_3,
// Not connected
NC = (int)0xFFFFFFFF
} PinName;
typedef enum {
PullNone = 0,
PullUp = 1,
PullDown = 2,
OpenDrain = 3,
PullDefault = PullNone
} PinMode;
#ifdef __cplusplus
}
#endif
#endif

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libraries/mbed/targets/hal/TARGET_STM/TARGET_DISCO_F051R8/PortNames.h Normal file
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/* mbed Microcontroller Library
*******************************************************************************
* Copyright (c) 2014, STMicroelectronics
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
* 3. Neither the name of STMicroelectronics nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*******************************************************************************
*/
#ifndef MBED_PORTNAMES_H
#define MBED_PORTNAMES_H
#ifdef __cplusplus
extern "C" {
#endif
typedef enum {
PortA = 0,
PortB = 1,
PortC = 2,
PortD = 3,
PortF = 5
} PortName;
#ifdef __cplusplus
}
#endif
#endif

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libraries/mbed/targets/hal/TARGET_STM/TARGET_DISCO_F051R8/analogin_api.c Normal file
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/* mbed Microcontroller Library
* Copyright (c) 2014, STMicroelectronics
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
* 3. Neither the name of STMicroelectronics nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include "analogin_api.h"
#include "wait_api.h"
#if DEVICE_ANALOGIN
#include "cmsis.h"
#include "pinmap.h"
#include "error.h"
static const PinMap PinMap_ADC[] = {
{PA_0, ADC_1, STM_PIN_DATA(GPIO_Mode_AN, GPIO_OType_PP, GPIO_PuPd_NOPULL, 0xFF)}, // ADC_IN0
{PA_1, ADC_1, STM_PIN_DATA(GPIO_Mode_AN, GPIO_OType_PP, GPIO_PuPd_NOPULL, 0xFF)}, // ADC_IN1
{PA_4, ADC_1, STM_PIN_DATA(GPIO_Mode_AN, GPIO_OType_PP, GPIO_PuPd_NOPULL, 0xFF)}, // ADC_IN4
{PB_0, ADC_1, STM_PIN_DATA(GPIO_Mode_AN, GPIO_OType_PP, GPIO_PuPd_NOPULL, 0xFF)}, // ADC_IN8
{PC_1, ADC_1, STM_PIN_DATA(GPIO_Mode_AN, GPIO_OType_PP, GPIO_PuPd_NOPULL, 0xFF)}, // ADC_IN11
{PC_0, ADC_1, STM_PIN_DATA(GPIO_Mode_AN, GPIO_OType_PP, GPIO_PuPd_NOPULL, 0xFF)}, // ADC_IN10
{NC, NC, 0}
};
int adc_inited = 0;
void analogin_init(analogin_t *obj, PinName pin) {
ADC_TypeDef *adc;
ADC_InitTypeDef ADC_InitStructure;
// Get the peripheral name (ADC_1, ADC_2...) from the pin and assign it to the object
obj->adc = (ADCName)pinmap_peripheral(pin, PinMap_ADC);
if (obj->adc == (ADCName)NC) {
error("ADC pin mapping failed");
}
// Configure GPIO
pinmap_pinout(pin, PinMap_ADC);
// Save pin number for the read function
obj->pin = pin;
// The ADC initialization is done once
if (adc_inited == 0) {
adc_inited = 1;
// Get ADC registers structure address
adc = (ADC_TypeDef *)(obj->adc);
// Enable ADC clock
RCC_APB2PeriphClockCmd(RCC_APB2Periph_ADC1, ENABLE);
// Configure ADC
ADC_InitStructure.ADC_Resolution = ADC_Resolution_12b;
ADC_InitStructure.ADC_ContinuousConvMode = DISABLE;
ADC_InitStructure.ADC_ExternalTrigConvEdge = ADC_ExternalTrigConvEdge_None;
ADC_InitStructure.ADC_ExternalTrigConv = ADC_ExternalTrigConv_T1_TRGO;
ADC_InitStructure.ADC_DataAlign = ADC_DataAlign_Right;
ADC_InitStructure.ADC_ScanDirection = ADC_ScanDirection_Upward;
ADC_Init(adc, &ADC_InitStructure);
// Calibrate ADC
ADC_GetCalibrationFactor(adc);
// Enable ADC
ADC_Cmd(adc, ENABLE);
}
}
static inline uint16_t adc_read(analogin_t *obj) {
// Get ADC registers structure address
ADC_TypeDef *adc = (ADC_TypeDef *)(obj->adc);
adc->CHSELR = 0; // Clear all channels first
// Configure ADC channel
switch (obj->pin) {
case PA_0:
ADC_ChannelConfig(adc, ADC_Channel_0, ADC_SampleTime_7_5Cycles);
break;
case PA_1:
ADC_ChannelConfig(adc, ADC_Channel_1, ADC_SampleTime_7_5Cycles);
break;
case PA_4:
ADC_ChannelConfig(adc, ADC_Channel_4, ADC_SampleTime_7_5Cycles);
break;
case PB_0:
ADC_ChannelConfig(adc, ADC_Channel_8, ADC_SampleTime_7_5Cycles);
break;
case PC_1:
ADC_ChannelConfig(adc, ADC_Channel_11, ADC_SampleTime_7_5Cycles);
break;
case PC_0:
ADC_ChannelConfig(adc, ADC_Channel_10, ADC_SampleTime_7_5Cycles);
break;
default:
return 0;
}
while(!ADC_GetFlagStatus(adc, ADC_FLAG_ADRDY)); // Wait ADC ready
ADC_StartOfConversion(adc); // Start conversion
while(ADC_GetFlagStatus(adc, ADC_FLAG_EOC) == RESET); // Wait end of conversion
return(ADC_GetConversionValue(adc)); // Get conversion value
}
uint16_t analogin_read_u16(analogin_t *obj) {
return(adc_read(obj));
}
float analogin_read(analogin_t *obj) {
uint16_t value = adc_read(obj);
return (float)value * (1.0f / (float)0xFFF); // 12 bits range
}
#endif

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libraries/mbed/targets/hal/TARGET_STM/TARGET_DISCO_F051R8/device.h Normal file
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/* mbed Microcontroller Library
*******************************************************************************
* Copyright (c) 2014, STMicroelectronics
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
* 3. Neither the name of STMicroelectronics nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*******************************************************************************
*/
#ifndef MBED_DEVICE_H
#define MBED_DEVICE_H
#define DEVICE_PORTIN 1
#define DEVICE_PORTOUT 1
#define DEVICE_PORTINOUT 1
#define DEVICE_INTERRUPTIN 1
#define DEVICE_ANALOGIN 1
#define DEVICE_ANALOGOUT 0 // Not present on this device
#define DEVICE_SERIAL 1
#define DEVICE_I2C 1
#define DEVICE_I2CSLAVE 0
#define DEVICE_SPI 1
#define DEVICE_SPISLAVE 0
#define DEVICE_RTC 1
#define DEVICE_PWMOUT 1
#define DEVICE_SLEEP 1
//=======================================
#define DEVICE_SEMIHOST 0
#define DEVICE_LOCALFILESYSTEM 0
#define DEVICE_ID_LENGTH 24
#define DEVICE_DEBUG_AWARENESS 0
#define DEVICE_STDIO_MESSAGES 1
//#define DEVICE_ERROR_RED 0
#include "objects.h"
#endif

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libraries/mbed/targets/hal/TARGET_STM/TARGET_DISCO_F051R8/gpio_api.c Normal file
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/* mbed Microcontroller Library
*******************************************************************************
* Copyright (c) 2014, STMicroelectronics
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
* 3. Neither the name of STMicroelectronics nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*******************************************************************************
*/
#include "gpio_api.h"
#include "pinmap.h"
#include "error.h"
extern uint32_t Set_GPIO_Clock(uint32_t port_idx);
uint32_t gpio_set(PinName pin) {
if (pin == NC) return 0;
pin_function(pin, STM_PIN_DATA(GPIO_Mode_IN, 0, GPIO_PuPd_NOPULL, 0xFF));
return (uint32_t)(1 << ((uint32_t)pin & 0xF)); // Return the pin mask
}
void gpio_init(gpio_t *obj, PinName pin) {
if (pin == NC) return;
uint32_t port_index = STM_PORT(pin);
// Enable GPIO clock
uint32_t gpio_add = Set_GPIO_Clock(port_index);
GPIO_TypeDef *gpio = (GPIO_TypeDef *)gpio_add;
// Fill GPIO object structure for future use
obj->pin = pin;
obj->mask = gpio_set(pin);
obj->reg_in = &gpio->IDR;
obj->reg_set = &gpio->BSRR;
obj->reg_clr = &gpio->BRR;
}
void gpio_mode(gpio_t *obj, PinMode mode) {
pin_mode(obj->pin, mode);
}
void gpio_dir(gpio_t *obj, PinDirection direction) {
if (direction == PIN_OUTPUT) {
pin_function(obj->pin, STM_PIN_DATA(GPIO_Mode_OUT, GPIO_OType_PP, GPIO_PuPd_NOPULL, 0xFF));
}
else { // PIN_INPUT
pin_function(obj->pin, STM_PIN_DATA(GPIO_Mode_IN, 0, GPIO_PuPd_NOPULL, 0xFF));
}
}

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libraries/mbed/targets/hal/TARGET_STM/TARGET_DISCO_F051R8/gpio_irq_api.c Normal file
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/* mbed Microcontroller Library
*******************************************************************************
* Copyright (c) 2014, STMicroelectronics
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
* 3. Neither the name of STMicroelectronics nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*******************************************************************************
*/
#include <stddef.h>
#include "cmsis.h"
#include "gpio_irq_api.h"
#include "pinmap.h"
#include "error.h"
#define EDGE_NONE (0)
#define EDGE_RISE (1)
#define EDGE_FALL (2)
#define EDGE_BOTH (3)
#define CHANNEL_NUM (3)
static uint32_t channel_ids[CHANNEL_NUM] = {0, 0, 0};
static uint32_t channel_gpio[CHANNEL_NUM] = {0, 0, 0};
static uint32_t channel_pin[CHANNEL_NUM] = {0, 0, 0};
static gpio_irq_handler irq_handler;
static void handle_interrupt_in(uint32_t irq_index) {
// Retrieve the gpio and pin that generate the irq
GPIO_TypeDef *gpio = (GPIO_TypeDef *)(channel_gpio[irq_index]);
uint32_t pin = (uint32_t)(1 << channel_pin[irq_index]);
// Clear interrupt flag
if (EXTI_GetITStatus(pin) != RESET)
{
EXTI_ClearITPendingBit(pin);
}
if (channel_ids[irq_index] == 0) return;
// Check which edge has generated the irq
if ((gpio->IDR & pin) == 0) {
irq_handler(channel_ids[irq_index], IRQ_FALL);
}
else {
irq_handler(channel_ids[irq_index], IRQ_RISE);
}
}
// The irq_index is passed to the function
static void gpio_irq0(void) {handle_interrupt_in(0);}
static void gpio_irq1(void) {handle_interrupt_in(1);}
static void gpio_irq2(void) {handle_interrupt_in(2);}
extern uint32_t Set_GPIO_Clock(uint32_t port_idx);
int gpio_irq_init(gpio_irq_t *obj, PinName pin, gpio_irq_handler handler, uint32_t id) {
IRQn_Type irq_n = (IRQn_Type)0;
uint32_t vector = 0;
uint32_t irq_index;
if (pin == NC) return -1;
uint32_t port_index = STM_PORT(pin);
uint32_t pin_index = STM_PIN(pin);
// Select irq number and interrupt routine
switch (pin) {
case PC_13: // User button
irq_n = EXTI4_15_IRQn;
vector = (uint32_t)&gpio_irq0;
irq_index = 0;
break;
case PA_0:
irq_n = EXTI0_1_IRQn;
vector = (uint32_t)&gpio_irq1;
irq_index = 1;
break;
case PB_3:
irq_n = EXTI2_3_IRQn;
vector = (uint32_t)&gpio_irq2;
irq_index = 2;
break;
default:
error("This pin is not supported\n");
return -1;
}
// Enable GPIO clock
uint32_t gpio_add = Set_GPIO_Clock(port_index);
// Enable SYSCFG clock
RCC_APB2PeriphClockCmd(RCC_APB2Periph_SYSCFG, ENABLE);
// Connect EXTI line to pin
SYSCFG_EXTILineConfig(port_index, pin_index);
// Configure EXTI line
EXTI_InitTypeDef EXTI_InitStructure;
EXTI_InitStructure.EXTI_Line = (uint32_t)(1 << pin_index);
EXTI_InitStructure.EXTI_Mode = EXTI_Mode_Interrupt;
EXTI_InitStructure.EXTI_Trigger = EXTI_Trigger_Falling;
EXTI_InitStructure.EXTI_LineCmd = ENABLE;
EXTI_Init(&EXTI_InitStructure);
// Enable and set EXTI interrupt to the lowest priority
NVIC_InitTypeDef NVIC_InitStructure;
NVIC_InitStructure.NVIC_IRQChannel = irq_n;
NVIC_InitStructure.NVIC_IRQChannelPriority = 0;
NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;
NVIC_Init(&NVIC_InitStructure);
NVIC_SetVector(irq_n, vector);
NVIC_EnableIRQ(irq_n);
// Save informations for future use
obj->irq_n = irq_n;
obj->irq_index = irq_index;
obj->event = EDGE_NONE;
channel_ids[irq_index] = id;
channel_gpio[irq_index] = gpio_add;
channel_pin[irq_index] = pin_index;
irq_handler = handler;
return 0;
}
void gpio_irq_free(gpio_irq_t *obj) {
channel_ids[obj->irq_index] = 0;
channel_gpio[obj->irq_index] = 0;
channel_pin[obj->irq_index] = 0;
// Disable EXTI line
EXTI_InitTypeDef EXTI_InitStructure;
EXTI_StructInit(&EXTI_InitStructure);
EXTI_Init(&EXTI_InitStructure);
obj->event = EDGE_NONE;
}
void gpio_irq_set(gpio_irq_t *obj, gpio_irq_event event, uint32_t enable) {
EXTI_InitTypeDef EXTI_InitStructure;
uint32_t pin_index = channel_pin[obj->irq_index];
EXTI_InitStructure.EXTI_Line = (uint32_t)(1 << pin_index);
EXTI_InitStructure.EXTI_Mode = EXTI_Mode_Interrupt;
if (event == IRQ_RISE) {
if ((obj->event == EDGE_FALL) || (obj->event == EDGE_BOTH)) {
EXTI_InitStructure.EXTI_Trigger = EXTI_Trigger_Rising_Falling;
obj->event = EDGE_BOTH;
}
else { // NONE or RISE
EXTI_InitStructure.EXTI_Trigger = EXTI_Trigger_Rising;
obj->event = EDGE_RISE;
}
}
if (event == IRQ_FALL) {
if ((obj->event == EDGE_RISE) || (obj->event == EDGE_BOTH)) {
EXTI_InitStructure.EXTI_Trigger = EXTI_Trigger_Rising_Falling;
obj->event = EDGE_BOTH;
}
else { // NONE or FALL
EXTI_InitStructure.EXTI_Trigger = EXTI_Trigger_Falling;
obj->event = EDGE_FALL;
}
}
if (enable) {
EXTI_InitStructure.EXTI_LineCmd = ENABLE;
}
else {
EXTI_InitStructure.EXTI_LineCmd = DISABLE;
}
EXTI_Init(&EXTI_InitStructure);
}
void gpio_irq_enable(gpio_irq_t *obj) {
NVIC_EnableIRQ(obj->irq_n);
}
void gpio_irq_disable(gpio_irq_t *obj) {
NVIC_DisableIRQ(obj->irq_n);
obj->event = EDGE_NONE;
}

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/* mbed Microcontroller Library
*******************************************************************************
* Copyright (c) 2014, STMicroelectronics
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
* 3. Neither the name of STMicroelectronics nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*******************************************************************************
*/
#ifndef MBED_GPIO_OBJECT_H
#define MBED_GPIO_OBJECT_H
#include "cmsis.h"
#include "PortNames.h"
#include "PeripheralNames.h"
#include "PinNames.h"
#ifdef __cplusplus
extern "C" {
#endif
typedef struct {
PinName pin;
uint32_t mask;
__IO uint16_t *reg_in;
__IO uint32_t *reg_set;
__IO uint16_t *reg_clr;
} gpio_t;
static inline void gpio_write(gpio_t *obj, int value) {
if (value) {
*obj->reg_set = obj->mask;
}
else {
*obj->reg_clr = obj->mask;
}
}
static inline int gpio_read(gpio_t *obj) {
return ((*obj->reg_in & obj->mask) ? 1 : 0);
}
#ifdef __cplusplus
}
#endif
#endif

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/* mbed Microcontroller Library
*******************************************************************************
* Copyright (c) 2014, STMicroelectronics
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
* 3. Neither the name of STMicroelectronics nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*******************************************************************************
*/
#include "i2c_api.h"
#if DEVICE_I2C
#include "cmsis.h"
#include "pinmap.h"
#include "error.h"
/* Timeout values for flags and events waiting loops. These timeouts are
not based on accurate values, they just guarantee that the application will
not remain stuck if the I2C communication is corrupted. */
#define FLAG_TIMEOUT ((int)0x1000)
#define LONG_TIMEOUT ((int)0x8000)
static const PinMap PinMap_I2C_SDA[] = {
{PB_9, I2C_1, STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_OD, GPIO_PuPd_UP, GPIO_AF_1)},
{NC, NC, 0}
};
static const PinMap PinMap_I2C_SCL[] = {
{PB_8, I2C_1, STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_OD, GPIO_PuPd_UP, GPIO_AF_1)},
{NC, NC, 0}
};
void i2c_init(i2c_t *obj, PinName sda, PinName scl) {
// Determine the I2C to use
I2CName i2c_sda = (I2CName)pinmap_peripheral(sda, PinMap_I2C_SDA);
I2CName i2c_scl = (I2CName)pinmap_peripheral(scl, PinMap_I2C_SCL);
obj->i2c = (I2CName)pinmap_merge(i2c_sda, i2c_scl);
if (obj->i2c == (I2CName)NC) {
error("I2C pin mapping failed");
}
// Enable I2C clock
if (obj->i2c == I2C_1) {
RCC_APB1PeriphClockCmd(RCC_APB1Periph_I2C1, ENABLE);
}
//if (obj->i2c == I2C_2) {
// RCC_APB1PeriphClockCmd(RCC_APB1Periph_I2C2, ENABLE);
//}
// Configure I2C pins
pinmap_pinout(scl, PinMap_I2C_SCL);
pin_mode(scl, OpenDrain);
pinmap_pinout(sda, PinMap_I2C_SDA);
pin_mode(sda, OpenDrain);
// Reset to clear pending flags if any
i2c_reset(obj);
// I2C configuration
i2c_frequency(obj, 100000); // 100 kHz per default
}
void i2c_frequency(i2c_t *obj, int hz) {
I2C_TypeDef *i2c = (I2C_TypeDef *)(obj->i2c);
I2C_InitTypeDef I2C_InitStructure;
uint32_t tim;
// Values calculated with I2C_Timing_Configuration_V1.0.1.xls file (see AN4235)
// with Rise time = 100ns and Fall time = 10ns
switch (hz) {
case 100000:
tim = 0x00201D2B; // Standard mode
break;
case 200000:
tim = 0x0010021E; // Fast mode
break;
case 400000:
tim = 0x0010020A; // Fast mode
break;
default:
error("Only 100kHz, 200kHz and 400kHz I2C frequencies are supported.");
break;
}
// I2C configuration
I2C_InitStructure.I2C_Mode = I2C_Mode_I2C;
I2C_InitStructure.I2C_AnalogFilter = I2C_AnalogFilter_Enable;
I2C_InitStructure.I2C_DigitalFilter = 0x00;
I2C_InitStructure.I2C_OwnAddress1 = 0x00;
I2C_InitStructure.I2C_Ack = I2C_Ack_Enable;
I2C_InitStructure.I2C_AcknowledgedAddress = I2C_AcknowledgedAddress_7bit;
I2C_InitStructure.I2C_Timing = tim;
I2C_Init(i2c, &I2C_InitStructure);
I2C_Cmd(i2c, ENABLE);
}
inline int i2c_start(i2c_t *obj) {
I2C_TypeDef *i2c = (I2C_TypeDef *)(obj->i2c);
int timeout;
// Test BUSY Flag
timeout = LONG_TIMEOUT;
while (I2C_GetFlagStatus(i2c, I2C_ISR_BUSY) != RESET) {
timeout--;
if (timeout == 0) {
return 0;
}
}
I2C_GenerateSTART(i2c, ENABLE);
return 0;
}
inline int i2c_stop(i2c_t *obj) {
I2C_TypeDef *i2c = (I2C_TypeDef *)(obj->i2c);
I2C_GenerateSTOP(i2c, ENABLE);
return 0;
}
int i2c_read(i2c_t *obj, int address, char *data, int length, int stop) {
I2C_TypeDef *i2c = (I2C_TypeDef *)(obj->i2c);
int count;
int value;
if (length == 0) return 0;
// Configure slave address, nbytes, reload, end mode and start or stop generation
I2C_TransferHandling(i2c, address, length, I2C_AutoEnd_Mode, I2C_Generate_Start_Read);
// Read all bytes
for (count = 0; count < length; count++) {
value = i2c_byte_read(obj, 0);
data[count] = (char)value;
}
return length;
}
int i2c_write(i2c_t *obj, int address, const char *data, int length, int stop) {
I2C_TypeDef *i2c = (I2C_TypeDef *)(obj->i2c);
//int timeout;
int count;
if (length == 0) return 0;
// TODO: the stop is always sent even with I2C_SoftEnd_Mode. To be corrected.
// Configure slave address, nbytes, reload, end mode and start or stop generation
//if (stop) {
I2C_TransferHandling(i2c, address, length, I2C_AutoEnd_Mode, I2C_Generate_Start_Write);
//}
//else {
// I2C_TransferHandling(i2c, address, length, I2C_SoftEnd_Mode, I2C_Generate_Start_Write);
//}
// Write all bytes
for (count = 0; count < length; count++) {
if (i2c_byte_write(obj, data[count]) != 1) {
i2c_stop(obj);
return 0;
}
}
/*
if (stop) {
// Wait until STOPF flag is set
timeout = LONG_TIMEOUT;
while (I2C_GetFlagStatus(i2c, I2C_ISR_STOPF) == RESET) {
timeout--;
if (timeout == 0) {
return 0;
}
}
// Clear STOPF flag
I2C_ClearFlag(i2c, I2C_ICR_STOPCF);
}
*/
return count;
}
int i2c_byte_read(i2c_t *obj, int last) {
I2C_TypeDef *i2c = (I2C_TypeDef *)(obj->i2c);
uint8_t data;
int timeout;
// Wait until the byte is received
timeout = FLAG_TIMEOUT;
while (I2C_GetFlagStatus(i2c, I2C_ISR_RXNE) == RESET) {
timeout--;
if (timeout == 0) {
return 0;
}
}
data = I2C_ReceiveData(i2c);
return (int)data;
}
int i2c_byte_write(i2c_t *obj, int data) {
I2C_TypeDef *i2c = (I2C_TypeDef *)(obj->i2c);
int timeout;
// Wait until the previous byte is transmitted
timeout = FLAG_TIMEOUT;
while (I2C_GetFlagStatus(i2c, I2C_ISR_TXIS) == RESET) {
timeout--;
if (timeout == 0) {
return 0;
}
}
I2C_SendData(i2c, (uint8_t)data);
return 1;
}
void i2c_reset(i2c_t *obj) {
if (obj->i2c == I2C_1) {
RCC_APB1PeriphResetCmd(RCC_APB1Periph_I2C1, ENABLE);
RCC_APB1PeriphResetCmd(RCC_APB1Periph_I2C1, DISABLE);
}
//if (obj->i2c == I2C_2) {
// RCC_APB1PeriphResetCmd(RCC_APB1Periph_I2C2, ENABLE);
// RCC_APB1PeriphResetCmd(RCC_APB1Periph_I2C2, DISABLE);
//}
}
#if DEVICE_I2CSLAVE
void i2c_slave_address(i2c_t *obj, int idx, uint32_t address, uint32_t mask) {
I2C_TypeDef *i2c = (I2C_TypeDef *)(obj->i2c);
uint16_t tmpreg;
// Get the old register value
tmpreg = i2c->OAR1;
// Reset address bits
tmpreg &= 0xFC00;
// Set new address
tmpreg |= (uint16_t)((uint16_t)address & (uint16_t)0x00FE); // 7-bits
// Store the new register value
i2c->OAR1 = tmpreg;
}
void i2c_slave_mode(i2c_t *obj, int enable_slave) {
// Nothing to do
}
// See I2CSlave.h
#define NoData 0 // the slave has not been addressed
#define ReadAddressed 1 // the master has requested a read from this slave (slave = transmitter)
#define WriteGeneral 2 // the master is writing to all slave
#define WriteAddressed 3 // the master is writing to this slave (slave = receiver)
int i2c_slave_receive(i2c_t *obj) {
// TO BE DONE
return(0);
}
int i2c_slave_read(i2c_t *obj, char *data, int length) {
int count = 0;
// Read all bytes
for (count = 0; count < length; count++) {
data[count] = i2c_byte_read(obj, 0);
}
return count;
}
int i2c_slave_write(i2c_t *obj, const char *data, int length) {
int count = 0;
// Write all bytes
for (count = 0; count < length; count++) {
i2c_byte_write(obj, data[count]);
}
return count;
}
#endif // DEVICE_I2CSLAVE
#endif // DEVICE_I2C

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/* mbed Microcontroller Library
*******************************************************************************
* Copyright (c) 2014, STMicroelectronics
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
* 3. Neither the name of STMicroelectronics nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*******************************************************************************
*/
#ifndef MBED_OBJECTS_H
#define MBED_OBJECTS_H
#include "cmsis.h"
#include "PortNames.h"
#include "PeripheralNames.h"
#include "PinNames.h"
#ifdef __cplusplus
extern "C" {
#endif
struct gpio_irq_s {
IRQn_Type irq_n;
uint32_t irq_index;
uint32_t event;
};
struct port_s {
PortName port;
uint32_t mask;
PinDirection direction;
__IO uint16_t *reg_in;
__IO uint16_t *reg_out;
};
struct analogin_s {
ADCName adc;
PinName pin;
};
struct dac_s {
DACName dac;
PinName channel;
};
struct serial_s {
UARTName uart;
int index; // Used by irq
uint32_t baudrate;
uint32_t databits;
uint32_t stopbits;
uint32_t parity;
};
struct spi_s {
SPIName spi;
uint32_t bits;
uint32_t cpol;
uint32_t cpha;
uint32_t mode;
uint32_t nss;
uint32_t br_presc;
};
struct i2c_s {
I2CName i2c;
};
struct pwmout_s {
PWMName pwm;
PinName pin;
uint32_t period;
uint32_t pulse;
};
#include "gpio_object.h"
#ifdef __cplusplus
}
#endif
#endif

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/* mbed Microcontroller Library
*******************************************************************************
* Copyright (c) 2014, STMicroelectronics
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
* 3. Neither the name of STMicroelectronics nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*******************************************************************************
*/
#include "pinmap.h"
#include "error.h"
// Enable GPIO clock and return GPIO base address
uint32_t Set_GPIO_Clock(uint32_t port_idx) {
uint32_t gpio_add = 0;
switch (port_idx) {
case PortA:
gpio_add = GPIOA_BASE;
RCC_AHBPeriphClockCmd(RCC_AHBPeriph_GPIOA, ENABLE);
break;
case PortB:
gpio_add = GPIOB_BASE;
RCC_AHBPeriphClockCmd(RCC_AHBPeriph_GPIOB, ENABLE);
break;
case PortC:
gpio_add = GPIOC_BASE;
RCC_AHBPeriphClockCmd(RCC_AHBPeriph_GPIOC, ENABLE);
break;
case PortD:
gpio_add = GPIOD_BASE;
RCC_AHBPeriphClockCmd(RCC_AHBPeriph_GPIOD, ENABLE);
break;
case PortF:
gpio_add = GPIOF_BASE;
RCC_AHBPeriphClockCmd(RCC_AHBPeriph_GPIOF, ENABLE);
break;
default:
error("Port number is not correct.");
break;
}
return gpio_add;
}
/**
* Configure pin (mode, speed, output type and pull-up/pull-down)
*/
void pin_function(PinName pin, int data) {
if (pin == NC) return;
// Get the pin informations
uint32_t mode = STM_PIN_MODE(data);
uint32_t otype = STM_PIN_OTYPE(data);
uint32_t pupd = STM_PIN_PUPD(data);
uint32_t afnum = STM_PIN_AFNUM(data);
uint32_t port_index = STM_PORT(pin);
uint32_t pin_index = STM_PIN(pin);
// Enable GPIO clock
uint32_t gpio_add = Set_GPIO_Clock(port_index);
GPIO_TypeDef *gpio = (GPIO_TypeDef *)gpio_add;
// Configure Alternate Function
// Warning: Must be done before the GPIO is initialized
if (afnum != 0xFF) {
GPIO_PinAFConfig(gpio, (uint16_t)pin_index, afnum);
}
// Configure GPIO
GPIO_InitTypeDef GPIO_InitStructure;
GPIO_InitStructure.GPIO_Pin = (uint16_t)(1 << pin_index);
GPIO_InitStructure.GPIO_Mode = (GPIOMode_TypeDef)mode;
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_Level_3;
GPIO_InitStructure.GPIO_OType = (GPIOOType_TypeDef)otype;
GPIO_InitStructure.GPIO_PuPd = (GPIOPuPd_TypeDef)pupd;
GPIO_Init(gpio, &GPIO_InitStructure);
// *** TODO ***
// Disconnect JTAG-DP + SW-DP signals.
// Warning: Need to reconnect under reset
//if ((pin == PA_13) || (pin == PA_14)) {
//
//}
//if ((pin == PA_15) || (pin == PB_3) || (pin == PB_4)) {
//
//}
}
/**
* Configure pin pull-up/pull-down
*/
void pin_mode(PinName pin, PinMode mode) {
if (pin == NC) return;
uint32_t port_index = STM_PORT(pin);
uint32_t pin_index = STM_PIN(pin);
// Enable GPIO clock
uint32_t gpio_add = Set_GPIO_Clock(port_index);
GPIO_TypeDef *gpio = (GPIO_TypeDef *)gpio_add;
// Configure pull-up/pull-down resistors
uint32_t pupd = (uint32_t)mode;
if (pupd > 2) pupd = 0; // Open-drain = No pull-up/No pull-down
gpio->PUPDR &= (uint32_t)(~(GPIO_PUPDR_PUPDR0 << (pin_index * 2)));
gpio->PUPDR |= (uint32_t)(pupd << (pin_index * 2));
}

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/* mbed Microcontroller Library
*******************************************************************************
* Copyright (c) 2014, STMicroelectronics
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
* 3. Neither the name of STMicroelectronics nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*******************************************************************************
*/
#include "port_api.h"
#include "pinmap.h"
#include "gpio_api.h"
#include "error.h"
#if DEVICE_PORTIN || DEVICE_PORTOUT
extern uint32_t Set_GPIO_Clock(uint32_t port_idx);
// high nibble = port number (0=A, 1=B, 2=C, 3=D, 4=E, 5=F, ...)
// low nibble = pin number
PinName port_pin(PortName port, int pin_n) {
return (PinName)(pin_n + (port << 4));
}
void port_init(port_t *obj, PortName port, int mask, PinDirection dir) {
uint32_t port_index = (uint32_t)port;
// Enable GPIO clock
uint32_t gpio_add = Set_GPIO_Clock(port_index);
GPIO_TypeDef *gpio = (GPIO_TypeDef *)gpio_add;
// Fill PORT object structure for future use
obj->port = port;
obj->mask = mask;
obj->direction = dir;
obj->reg_in = &gpio->IDR;
obj->reg_out = &gpio->ODR;
port_dir(obj, dir);
}
void port_dir(port_t *obj, PinDirection dir) {
uint32_t i;
obj->direction = dir;
for (i = 0; i < 16; i++) { // Process all pins
if (obj->mask & (1 << i)) { // If the pin is used
if (dir == PIN_OUTPUT) {
pin_function(port_pin(obj->port, i), STM_PIN_DATA(GPIO_Mode_OUT, GPIO_OType_PP, GPIO_PuPd_NOPULL, 0xFF));
}
else { // PIN_INPUT
pin_function(port_pin(obj->port, i), STM_PIN_DATA(GPIO_Mode_IN, 0, GPIO_PuPd_NOPULL, 0xFF));
}
}
}
}
void port_mode(port_t *obj, PinMode mode) {
uint32_t i;
for (i = 0; i < 16; i++) { // Process all pins
if (obj->mask & (1 << i)) { // If the pin is used
pin_mode(port_pin(obj->port, i), mode);
}
}
}
void port_write(port_t *obj, int value) {
*obj->reg_out = (*obj->reg_out & ~obj->mask) | (value & obj->mask);
}
int port_read(port_t *obj) {
if (obj->direction == PIN_OUTPUT) {
return (*obj->reg_out & obj->mask);
}
else { // PIN_INPUT
return (*obj->reg_in & obj->mask);
}
}
#endif

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/* mbed Microcontroller Library
*******************************************************************************
* Copyright (c) 2014, STMicroelectronics
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
* 3. Neither the name of STMicroelectronics nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*******************************************************************************
*/
#include "pwmout_api.h"
#include "cmsis.h"
#include "pinmap.h"
#include "error.h"
static const PinMap PinMap_PWM[] = {
{PA_7, TIM_14, STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_NOPULL, GPIO_AF_4)}, // TIM14_CH1
{PC_7, TIM_3, STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_NOPULL, GPIO_AF_0)}, // TIM3_CH2
{PB_6, TIM_16, STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_NOPULL, GPIO_AF_2)}, // TIM16_CH1N --> FAIL
{NC, NC, 0}
};
void pwmout_init(pwmout_t* obj, PinName pin) {
// Get the peripheral name from the pin and assign it to the object
obj->pwm = (PWMName)pinmap_peripheral(pin, PinMap_PWM);
if (obj->pwm == (PWMName)NC) {
error("PWM pinout mapping failed");
}
// Enable TIM clock
if (obj->pwm == TIM_3) RCC_APB1PeriphClockCmd(RCC_APB1Periph_TIM3, ENABLE);
if (obj->pwm == TIM_14) RCC_APB1PeriphClockCmd(RCC_APB1Periph_TIM14, ENABLE);
if (obj->pwm == TIM_16) RCC_APB2PeriphClockCmd(RCC_APB2Periph_TIM16, ENABLE);
// Configure GPIO
pinmap_pinout(pin, PinMap_PWM);
//pin_mode(pin, PullUp);
obj->pin = pin;
obj->period = 0;
obj->pulse = 0;
pwmout_period_us(obj, 20000); // 20 ms per default
}
void pwmout_free(pwmout_t* obj) {
TIM_TypeDef *tim = (TIM_TypeDef *)(obj->pwm);
TIM_DeInit(tim);
}
void pwmout_write(pwmout_t* obj, float value) {
TIM_TypeDef *tim = (TIM_TypeDef *)(obj->pwm);
TIM_OCInitTypeDef TIM_OCInitStructure;
if (value < 0.0) {
value = 0.0;
} else if (value > 1.0) {
value = 1.0;
}
obj->pulse = (uint32_t)((float)obj->period * value);
TIM_OCInitStructure.TIM_OCMode = TIM_OCMode_PWM1;
TIM_OCInitStructure.TIM_Pulse = obj->pulse;
// Configure channel 1
if (obj->pin == PA_7) {
TIM_OCInitStructure.TIM_OutputState = TIM_OutputState_Enable;
TIM_OCInitStructure.TIM_OCPolarity = TIM_OCPolarity_High;
TIM_OC1PreloadConfig(tim, TIM_OCPreload_Enable);
TIM_OC1Init(tim, &TIM_OCInitStructure);
}
// Configure channel 1N
if (obj->pin == PB_6) {
TIM_OCInitStructure.TIM_OutputNState = TIM_OutputNState_Enable;
TIM_OCInitStructure.TIM_OCNPolarity = TIM_OCNPolarity_High;
TIM_OC1PreloadConfig(tim, TIM_OCPreload_Enable);
TIM_OC1Init(tim, &TIM_OCInitStructure);
}
// Configure channel 2
if (obj->pin == PC_7) {
TIM_OCInitStructure.TIM_OutputState = TIM_OutputState_Enable;
TIM_OCInitStructure.TIM_OCPolarity = TIM_OCPolarity_High;
TIM_OC2PreloadConfig(tim, TIM_OCPreload_Enable);
TIM_OC2Init(tim, &TIM_OCInitStructure);
}
}
float pwmout_read(pwmout_t* obj) {
float value = 0;
if (obj->period > 0) {
value = (float)(obj->pulse) / (float)(obj->period);
}
return ((value > 1.0) ? (1.0) : (value));
}
void pwmout_period(pwmout_t* obj, float seconds) {
pwmout_period_us(obj, seconds * 1000000.0f);
}
void pwmout_period_ms(pwmout_t* obj, int ms) {
pwmout_period_us(obj, ms * 1000);
}
void pwmout_period_us(pwmout_t* obj, int us) {
TIM_TypeDef *tim = (TIM_TypeDef *)(obj->pwm);
TIM_TimeBaseInitTypeDef TIM_TimeBaseStructure;
float dc = pwmout_read(obj);
TIM_Cmd(tim, DISABLE);
obj->period = us;
TIM_TimeBaseStructure.TIM_Period = obj->period - 1;
TIM_TimeBaseStructure.TIM_Prescaler = (uint16_t)(SystemCoreClock / 1000000) - 1; // 1 µs tick
TIM_TimeBaseStructure.TIM_ClockDivision = 0;
TIM_TimeBaseStructure.TIM_CounterMode = TIM_CounterMode_Up;
TIM_TimeBaseInit(tim, &TIM_TimeBaseStructure);
// Set duty cycle again
pwmout_write(obj, dc);
TIM_ARRPreloadConfig(tim, ENABLE);
TIM_Cmd(tim, ENABLE);
}
void pwmout_pulsewidth(pwmout_t* obj, float seconds) {
pwmout_pulsewidth_us(obj, seconds * 1000000.0f);
}
void pwmout_pulsewidth_ms(pwmout_t* obj, int ms) {
pwmout_pulsewidth_us(obj, ms * 1000);
}
void pwmout_pulsewidth_us(pwmout_t* obj, int us) {
float value = (float)us / (float)obj->period;
pwmout_write(obj, value);
}

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/* mbed Microcontroller Library
*******************************************************************************
* Copyright (c) 2014, STMicroelectronics
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
* 3. Neither the name of STMicroelectronics nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*******************************************************************************
*/
#include "rtc_api.h"
static int rtc_inited = 0;
void rtc_init(void) {
RCC_APB1PeriphClockCmd(RCC_APB1Periph_PWR, ENABLE); // Enable PWR clock
PWR_BackupAccessCmd(ENABLE); // Enable access to RTC
// Note: the LSI is used as RTC source clock
// The RTC Clock may vary due to LSI frequency dispersion.
RCC_LSICmd(ENABLE); // Enable LSI
while (RCC_GetFlagStatus(RCC_FLAG_LSIRDY) == RESET) {} // Wait until ready
RCC_RTCCLKConfig(RCC_RTCCLKSource_LSI); // Select LSI as RTC Clock Source
RCC_RTCCLKCmd(ENABLE); // Enable RTC Clock
RTC_WaitForSynchro(); // Wait for RTC registers synchronization
uint32_t lsi_freq = 40000; // *** TODO** To be measured precisely using a timer input capture
RTC_InitTypeDef RTC_InitStructure;
RTC_InitStructure.RTC_AsynchPrediv = 127;
RTC_InitStructure.RTC_SynchPrediv = (lsi_freq / 128) - 1;
RTC_InitStructure.RTC_HourFormat = RTC_HourFormat_24;
RTC_Init(&RTC_InitStructure);
PWR_BackupAccessCmd(DISABLE); // Disable access to RTC
rtc_inited = 1;
}
void rtc_free(void) {
RCC_DeInit(); // Resets the RCC clock configuration to the default reset state
rtc_inited = 0;
}
int rtc_isenabled(void) {
return rtc_inited;
}
/*
RTC Registers
RTC_WeekDay 1=monday, 2=tuesday, ..., 7=sunday
RTC_Month 1=january, 2=february, ..., 12=december
RTC_Date day of the month 1-31
RTC_Year year 0-99
struct tm
tm_sec seconds after the minute 0-61
tm_min minutes after the hour 0-59
tm_hour hours since midnight 0-23
tm_mday day of the month 1-31
tm_mon months since January 0-11
tm_year years since 1900
tm_wday days since Sunday 0-6
tm_yday days since January 1 0-365
tm_isdst Daylight Saving Time flag
*/
time_t rtc_read(void) {
RTC_DateTypeDef dateStruct;
RTC_TimeTypeDef timeStruct;
struct tm timeinfo;
// Read actual date and time
RTC_GetTime(RTC_Format_BIN, &timeStruct);
RTC_GetDate(RTC_Format_BIN, &dateStruct);
// Setup a tm structure based on the RTC
timeinfo.tm_wday = dateStruct.RTC_WeekDay;
timeinfo.tm_mon = dateStruct.RTC_Month - 1;
timeinfo.tm_mday = dateStruct.RTC_Date;
timeinfo.tm_year = dateStruct.RTC_Year + 100;
timeinfo.tm_hour = timeStruct.RTC_Hours;
timeinfo.tm_min = timeStruct.RTC_Minutes;
timeinfo.tm_sec = timeStruct.RTC_Seconds;
// Convert to timestamp
time_t t = mktime(&timeinfo);
return t;
}
void rtc_write(time_t t) {
RTC_DateTypeDef dateStruct;
RTC_TimeTypeDef timeStruct;
// Convert the time into a tm
struct tm *timeinfo = localtime(&t);
// Fill RTC structures
dateStruct.RTC_WeekDay = timeinfo->tm_wday;
dateStruct.RTC_Month = timeinfo->tm_mon + 1;
dateStruct.RTC_Date = timeinfo->tm_mday;
dateStruct.RTC_Year = timeinfo->tm_year - 100;
timeStruct.RTC_Hours = timeinfo->tm_hour;
timeStruct.RTC_Minutes = timeinfo->tm_min;
timeStruct.RTC_Seconds = timeinfo->tm_sec;
timeStruct.RTC_H12 = RTC_HourFormat_24;
// Change the RTC current date/time
PWR_BackupAccessCmd(ENABLE); // Enable access to RTC
RTC_SetDate(RTC_Format_BIN, &dateStruct);
RTC_SetTime(RTC_Format_BIN, &timeStruct);
PWR_BackupAccessCmd(DISABLE); // Disable access to RTC
}

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/* mbed Microcontroller Library
*******************************************************************************
* Copyright (c) 2014, STMicroelectronics
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
* 3. Neither the name of STMicroelectronics nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*******************************************************************************
*/
#include "serial_api.h"
#include "cmsis.h"
#include "pinmap.h"
#include "error.h"
#include <string.h>
static const PinMap PinMap_UART_TX[] = {
{PA_9, UART_1, STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_UP, GPIO_AF_1)},
{PA_2, UART_2, STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_UP, GPIO_AF_1)},
{NC, NC, 0}
};
static const PinMap PinMap_UART_RX[] = {
{PA_10, UART_1, STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_UP, GPIO_AF_1)},
{PA_3, UART_2, STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_UP, GPIO_AF_1)},
{NC, NC, 0}
};
#define UART_NUM (2)
static uint32_t serial_irq_ids[UART_NUM] = {0};
static uart_irq_handler irq_handler;
int stdio_uart_inited = 0;
serial_t stdio_uart;
static void init_usart(serial_t *obj) {
USART_TypeDef *usart = (USART_TypeDef *)(obj->uart);
USART_InitTypeDef USART_InitStructure;
USART_Cmd(usart, DISABLE);
USART_InitStructure.USART_BaudRate = obj->baudrate;
USART_InitStructure.USART_WordLength = obj->databits;
USART_InitStructure.USART_StopBits = obj->stopbits;
USART_InitStructure.USART_Parity = obj->parity;
USART_InitStructure.USART_HardwareFlowControl = USART_HardwareFlowControl_None;
USART_InitStructure.USART_Mode = USART_Mode_Rx | USART_Mode_Tx;
USART_Init(usart, &USART_InitStructure);
USART_Cmd(usart, ENABLE);
}
void serial_init(serial_t *obj, PinName tx, PinName rx) {
// Determine the UART to use (UART_1, UART_2, ...)
UARTName uart_tx = (UARTName)pinmap_peripheral(tx, PinMap_UART_TX);
UARTName uart_rx = (UARTName)pinmap_peripheral(rx, PinMap_UART_RX);
// Get the peripheral name (UART_1, UART_2, ...) from the pin and assign it to the object
obj->uart = (UARTName)pinmap_merge(uart_tx, uart_rx);
if (obj->uart == (UARTName)NC) {
error("Serial pinout mapping failed");
}
// Enable USART clock
if (obj->uart == UART_1) {
RCC_APB2PeriphClockCmd(RCC_APB2Periph_USART1, ENABLE);
}
if (obj->uart == UART_2) {
RCC_APB1PeriphClockCmd(RCC_APB1Periph_USART2, ENABLE);
}
// Configure the UART pins
pinmap_pinout(tx, PinMap_UART_TX);
pinmap_pinout(rx, PinMap_UART_RX);
pin_mode(tx, PullUp);
pin_mode(rx, PullUp);
// Configure UART
obj->baudrate = 9600;
obj->databits = USART_WordLength_8b;
obj->stopbits = USART_StopBits_1;
obj->parity = USART_Parity_No;
init_usart(obj);
// The index is used by irq
if (obj->uart == UART_1) obj->index = 0;
if (obj->uart == UART_2) obj->index = 1;
// For stdio management
if (obj->uart == STDIO_UART) {
stdio_uart_inited = 1;
memcpy(&stdio_uart, obj, sizeof(serial_t));
}
}
void serial_free(serial_t *obj) {
serial_irq_ids[obj->index] = 0;
}
void serial_baud(serial_t *obj, int baudrate) {
obj->baudrate = baudrate;
init_usart(obj);
}
void serial_format(serial_t *obj, int data_bits, SerialParity parity, int stop_bits) {
if (data_bits == 8) {
obj->databits = USART_WordLength_8b;
}
else {
obj->databits = USART_WordLength_9b;
}
switch (parity) {
case ParityOdd:
case ParityForced0:
obj->parity = USART_Parity_Odd;
break;
case ParityEven:
case ParityForced1:
obj->parity = USART_Parity_Even;
break;
default: // ParityNone
obj->parity = USART_Parity_No;
break;
}
if (stop_bits == 2) {
obj->stopbits = USART_StopBits_2;
}
else {
obj->stopbits = USART_StopBits_1;
}
init_usart(obj);
}
/******************************************************************************
* INTERRUPTS HANDLING
******************************************************************************/
// not api
static void uart_irq(USART_TypeDef* usart, int id) {
if (serial_irq_ids[id] != 0) {
if (USART_GetITStatus(usart, USART_IT_TC) != RESET) {
irq_handler(serial_irq_ids[id], TxIrq);
USART_ClearITPendingBit(usart, USART_IT_TC);
}
if (USART_GetITStatus(usart, USART_IT_RXNE) != RESET) {
irq_handler(serial_irq_ids[id], RxIrq);
USART_ClearITPendingBit(usart, USART_IT_RXNE);
}
}
}
static void uart1_irq(void) {uart_irq((USART_TypeDef*)UART_1, 0);}
static void uart2_irq(void) {uart_irq((USART_TypeDef*)UART_2, 1);}
void serial_irq_handler(serial_t *obj, uart_irq_handler handler, uint32_t id) {
irq_handler = handler;
serial_irq_ids[obj->index] = id;
}
void serial_irq_set(serial_t *obj, SerialIrq irq, uint32_t enable) {
IRQn_Type irq_n = (IRQn_Type)0;
uint32_t vector = 0;
USART_TypeDef *usart = (USART_TypeDef *)(obj->uart);
if (obj->uart == UART_1) {
irq_n = USART1_IRQn;
vector = (uint32_t)&uart1_irq;
}
if (obj->uart == UART_2) {
irq_n = USART2_IRQn;
vector = (uint32_t)&uart2_irq;
}
if (enable) {
if (irq == RxIrq) {
USART_ITConfig(usart, USART_IT_RXNE, ENABLE);
}
else { // TxIrq
USART_ITConfig(usart, USART_IT_TC, ENABLE);
}
NVIC_SetVector(irq_n, vector);
NVIC_EnableIRQ(irq_n);
} else { // disable
int all_disabled = 0;
if (irq == RxIrq) {
USART_ITConfig(usart, USART_IT_RXNE, DISABLE);
// Check if TxIrq is disabled too
if ((usart->CR1 & USART_CR1_TXEIE) == 0) all_disabled = 1;
}
else { // TxIrq
USART_ITConfig(usart, USART_IT_TXE, DISABLE);
// Check if RxIrq is disabled too
if ((usart->CR1 & USART_CR1_RXNEIE) == 0) all_disabled = 1;
}
if (all_disabled) NVIC_DisableIRQ(irq_n);
}
}
/******************************************************************************
* READ/WRITE
******************************************************************************/
int serial_getc(serial_t *obj) {
USART_TypeDef *usart = (USART_TypeDef *)(obj->uart);
while (!serial_readable(obj));
return (int)(USART_ReceiveData(usart));
}
void serial_putc(serial_t *obj, int c) {
USART_TypeDef *usart = (USART_TypeDef *)(obj->uart);
while (!serial_writable(obj));
USART_SendData(usart, (uint16_t)c);
}
int serial_readable(serial_t *obj) {
int status;
USART_TypeDef *usart = (USART_TypeDef *)(obj->uart);
// Check if data is received
status = ((USART_GetFlagStatus(usart, USART_FLAG_RXNE) != RESET) ? 1 : 0);
return status;
}
int serial_writable(serial_t *obj) {
int status;
USART_TypeDef *usart = (USART_TypeDef *)(obj->uart);
// Check if data is transmitted
status = ((USART_GetFlagStatus(usart, USART_FLAG_TXE) != RESET) ? 1 : 0);
return status;
}
void serial_clear(serial_t *obj) {
USART_TypeDef *usart = (USART_TypeDef *)(obj->uart);
USART_ClearFlag(usart, USART_FLAG_TXE);
USART_ClearFlag(usart, USART_FLAG_RXNE);
}
void serial_pinout_tx(PinName tx) {
pinmap_pinout(tx, PinMap_UART_TX);
}
void serial_break_set(serial_t *obj) {
}
void serial_break_clear(serial_t *obj) {
}

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/* mbed Microcontroller Library
*******************************************************************************
* Copyright (c) 2014, STMicroelectronics
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
* 3. Neither the name of STMicroelectronics nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*******************************************************************************
*/
#include "sleep_api.h"
#include "cmsis.h"
void sleep(void)
{
// Disable us_ticker update interrupt
TIM_ITConfig(TIM1, TIM_IT_Update, DISABLE);
SCB->SCR = 0; // Normal sleep mode for ARM core
__WFI();
// Re-enable us_ticker update interrupt
TIM_ITConfig(TIM1, TIM_IT_Update, ENABLE);
}
// MCU STOP mode
// Wake-up with external interrupt
void deepsleep(void)
{
// Enable PWR clock
RCC_APB1PeriphClockCmd(RCC_APB1Periph_PWR, ENABLE);
// Request to enter STOP mode with regulator in low power mode
PWR_EnterSTOPMode(PWR_Regulator_LowPower, PWR_STOPEntry_WFI);
}

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/* mbed Microcontroller Library
*******************************************************************************
* Copyright (c) 2014, STMicroelectronics
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
* 3. Neither the name of STMicroelectronics nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*******************************************************************************
*/
#include "spi_api.h"
#if DEVICE_SPI
#include <math.h>
#include "cmsis.h"
#include "pinmap.h"
#include "error.h"
static const PinMap PinMap_SPI_MOSI[] = {
{PA_7, SPI_1, STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_NOPULL, GPIO_AF_0)},
{NC, NC, 0}
};
static const PinMap PinMap_SPI_MISO[] = {
{PA_6, SPI_1, STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_NOPULL, GPIO_AF_0)},
{NC, NC, 0}
};
static const PinMap PinMap_SPI_SCLK[] = {
{PA_5, SPI_1, STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_NOPULL, GPIO_AF_0)},
{NC, NC, 0}
};
// Only used in Slave mode
static const PinMap PinMap_SPI_SSEL[] = {
{PB_6, SPI_1, STM_PIN_DATA(GPIO_Mode_IN, GPIO_OType_PP, GPIO_PuPd_NOPULL, 0)}, // Generic IO, not real H/W NSS pin
{NC, NC, 0}
};
static void init_spi(spi_t *obj) {
SPI_TypeDef *spi = (SPI_TypeDef *)(obj->spi);
SPI_InitTypeDef SPI_InitStructure;
SPI_Cmd(spi, DISABLE);
SPI_InitStructure.SPI_Mode = obj->mode;
SPI_InitStructure.SPI_NSS = obj->nss;
SPI_InitStructure.SPI_Direction = SPI_Direction_2Lines_FullDuplex;
SPI_InitStructure.SPI_DataSize = obj->bits;
SPI_InitStructure.SPI_CPOL = obj->cpol;
SPI_InitStructure.SPI_CPHA = obj->cpha;
SPI_InitStructure.SPI_BaudRatePrescaler = obj->br_presc;
SPI_InitStructure.SPI_FirstBit = SPI_FirstBit_MSB;
SPI_InitStructure.SPI_CRCPolynomial = 7;
SPI_Init(spi, &SPI_InitStructure);
SPI_RxFIFOThresholdConfig(spi, SPI_RxFIFOThreshold_QF);
SPI_Cmd(spi, ENABLE);
}
void spi_init(spi_t *obj, PinName mosi, PinName miso, PinName sclk, PinName ssel) {
// Determine the SPI to use
SPIName spi_mosi = (SPIName)pinmap_peripheral(mosi, PinMap_SPI_MOSI);
SPIName spi_miso = (SPIName)pinmap_peripheral(miso, PinMap_SPI_MISO);
SPIName spi_sclk = (SPIName)pinmap_peripheral(sclk, PinMap_SPI_SCLK);
SPIName spi_ssel = (SPIName)pinmap_peripheral(ssel, PinMap_SPI_SSEL);
SPIName spi_data = (SPIName)pinmap_merge(spi_mosi, spi_miso);
SPIName spi_cntl = (SPIName)pinmap_merge(spi_sclk, spi_ssel);
obj->spi = (SPIName)pinmap_merge(spi_data, spi_cntl);
if (obj->spi == (SPIName)NC) {
error("SPI pinout mapping failed");
}
// Enable SPI clock
if (obj->spi == SPI_1) {
RCC_APB2PeriphClockCmd(RCC_APB2Periph_SPI1, ENABLE);
}
if (obj->spi == SPI_2) {
RCC_APB1PeriphClockCmd(RCC_APB1Periph_SPI2, ENABLE);
}
// Configure the SPI pins
pinmap_pinout(mosi, PinMap_SPI_MOSI);
pinmap_pinout(miso, PinMap_SPI_MISO);
pinmap_pinout(sclk, PinMap_SPI_SCLK);
// Save new values
obj->bits = SPI_DataSize_8b;
obj->cpol = SPI_CPOL_Low;
obj->cpha = SPI_CPHA_1Edge;
obj->br_presc = SPI_BaudRatePrescaler_8; // 1 MHz
if (ssel == NC) { // Master
obj->mode = SPI_Mode_Master;
obj->nss = SPI_NSS_Soft;
}
else { // Slave
pinmap_pinout(ssel, PinMap_SPI_SSEL);
obj->mode = SPI_Mode_Slave;
obj->nss = SPI_NSS_Soft;
}
init_spi(obj);
}
void spi_free(spi_t *obj) {
SPI_TypeDef *spi = (SPI_TypeDef *)(obj->spi);
SPI_I2S_DeInit(spi);
}
void spi_format(spi_t *obj, int bits, int mode, int slave) {
// Save new values
if (bits == 8) {
obj->bits = SPI_DataSize_8b;
}
else {
obj->bits = SPI_DataSize_16b;
}
switch (mode) {
case 0:
obj->cpol = SPI_CPOL_Low;
obj->cpha = SPI_CPHA_1Edge;
break;
case 1:
obj->cpol = SPI_CPOL_Low;
obj->cpha = SPI_CPHA_2Edge;
break;
case 2:
obj->cpol = SPI_CPOL_High;
obj->cpha = SPI_CPHA_1Edge;
break;
default:
obj->cpol = SPI_CPOL_High;
obj->cpha = SPI_CPHA_2Edge;
break;
}
if (slave == 0) {
obj->mode = SPI_Mode_Master;
obj->nss = SPI_NSS_Soft;
}
else {
obj->mode = SPI_Mode_Slave;
obj->nss = SPI_NSS_Hard;
}
init_spi(obj);
}
void spi_frequency(spi_t *obj, int hz) {
// Get SPI clock frequency
uint32_t PCLK = SystemCoreClock;
// Choose the baud rate divisor (between 2 and 256)
uint32_t divisor = PCLK / hz;
// Find the nearest power-of-2
divisor = (divisor > 0 ? divisor-1 : 0);
divisor |= divisor >> 1;
divisor |= divisor >> 2;
divisor |= divisor >> 4;
divisor |= divisor >> 8;
divisor |= divisor >> 16;
divisor++;
uint32_t baud_rate = __builtin_ffs(divisor) - 2;
// Save new value
obj->br_presc = ((baud_rate > 7) ? (7 << 3) : (baud_rate << 3));
init_spi(obj);
}
static inline int ssp_readable(spi_t *obj) {
int status;
SPI_TypeDef *spi = (SPI_TypeDef *)(obj->spi);
// Check if data is received
status = ((SPI_I2S_GetFlagStatus(spi, SPI_I2S_FLAG_RXNE) != RESET) ? 1 : 0);
return status;
}
static inline int ssp_writeable(spi_t *obj) {
int status;
SPI_TypeDef *spi = (SPI_TypeDef *)(obj->spi);
// Check if data is transmitted
status = ((SPI_I2S_GetFlagStatus(spi, SPI_I2S_FLAG_TXE) != RESET) ? 1 : 0);
return status;
}
static inline void ssp_write(spi_t *obj, int value) {
SPI_TypeDef *spi = (SPI_TypeDef *)(obj->spi);
while (!ssp_writeable(obj));
if(obj->bits == SPI_DataSize_8b) // 8 bit mode
SPI_SendData8(spi, (uint8_t)value);
else
SPI_I2S_SendData16(spi, (uint16_t)value);
}
static inline int ssp_read(spi_t *obj) {
SPI_TypeDef *spi = (SPI_TypeDef *)(obj->spi);
while (!ssp_readable(obj));
if(obj->bits == SPI_DataSize_8b) // 8 bit mode
return (int)SPI_ReceiveData8(spi);
else // 16 bit mode
return (int)SPI_I2S_ReceiveData16(spi);
}
static inline int ssp_busy(spi_t *obj) {
int status;
SPI_TypeDef *spi = (SPI_TypeDef *)(obj->spi);
status = ((SPI_I2S_GetFlagStatus(spi, SPI_I2S_FLAG_BSY) != RESET) ? 1 : 0);
return status;
}
int spi_master_write(spi_t *obj, int value) {
ssp_write(obj, value);
return ssp_read(obj);
}
int spi_slave_receive(spi_t *obj) {
return (ssp_readable(obj) && !ssp_busy(obj)) ? (1) : (0);
};
int spi_slave_read(spi_t *obj) {
SPI_TypeDef *spi = (SPI_TypeDef *)(obj->spi);
if(obj->bits == SPI_DataSize_8b) // 8 bit mode
return (int)SPI_ReceiveData8(spi);
else
return (int)SPI_I2S_ReceiveData16(spi);
}
void spi_slave_write(spi_t *obj, int value) {
SPI_TypeDef *spi = (SPI_TypeDef *)(obj->spi);
while (!ssp_writeable(obj));
if(obj->bits == SPI_DataSize_8b) // 8 bit mode
SPI_SendData8(spi, (uint8_t)value);
else
SPI_I2S_SendData16(spi, (uint16_t)value);
}
int spi_busy(spi_t *obj) {
return ssp_busy(obj);
}
#endif

164
libraries/mbed/targets/hal/TARGET_STM/TARGET_DISCO_F051R8/us_ticker.c Normal file
View File

@ -0,0 +1,164 @@
/* mbed Microcontroller Library
* Copyright (c) 2014, STMicroelectronics
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
* 3. Neither the name of STMicroelectronics nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include <stddef.h>
#include "us_ticker_api.h"
#include "PeripheralNames.h"
// Timer selection:
#define TIM_MST TIM1
#define TIM_MST_UP_IRQ TIM1_BRK_UP_TRG_COM_IRQn
#define TIM_MST_OC_IRQ TIM1_CC_IRQn
#define TIM_MST_RCC RCC_APB2PeriphClockCmd(RCC_APB2Periph_TIM1, ENABLE)
static int us_ticker_inited = 0;
static volatile uint32_t SlaveCounter = 0;
static volatile uint32_t oc_int_part = 0;
static volatile uint16_t oc_rem_part = 0;
void set_compare(uint16_t count) {
// Set new output compare value
TIM_SetCompare1(TIM_MST, count);
// Enable IT
TIM_ITConfig(TIM_MST, TIM_IT_CC1, ENABLE);
}
// Used to increment the slave counter
static void tim_update_irq_handler(void) {
if (TIM_GetITStatus(TIM_MST, TIM_IT_Update) == SET) {
TIM_ClearITPendingBit(TIM_MST, TIM_IT_Update);
SlaveCounter++;
}
}
// Used by interrupt system
static void tim_oc_irq_handler(void) {
uint16_t cval = TIM_MST->CNT;
// Clear interrupt flag
if (TIM_GetITStatus(TIM_MST, TIM_IT_CC1) == SET) {
TIM_ClearITPendingBit(TIM_MST, TIM_IT_CC1);
}
if (oc_rem_part > 0) {
set_compare(oc_rem_part); // Finish the remaining time left
oc_rem_part = 0;
}
else {
if (oc_int_part > 0) {
set_compare(0xFFFF);
oc_rem_part = cval; // To finish the counter loop the next time
oc_int_part--;
}
else {
us_ticker_irq_handler();
}
}
}
void us_ticker_init(void) {
TIM_TimeBaseInitTypeDef TIM_TimeBaseStructure;
if (us_ticker_inited) return;
us_ticker_inited = 1;
// Enable Timer clock
TIM_MST_RCC;
// Configure time base
TIM_TimeBaseStructInit(&TIM_TimeBaseStructure);
TIM_TimeBaseStructure.TIM_Period = 0xFFFF;
TIM_TimeBaseStructure.TIM_Prescaler = (uint16_t)(SystemCoreClock / 1000000) - 1; // 1 µs tick
TIM_TimeBaseStructure.TIM_ClockDivision = 0;
TIM_TimeBaseStructure.TIM_CounterMode = TIM_CounterMode_Up;
TIM_TimeBaseInit(TIM_MST, &TIM_TimeBaseStructure);
// Configure interrupts
TIM_ITConfig(TIM_MST, TIM_IT_Update, ENABLE);
// Update interrupt used for 32-bit counter
NVIC_SetVector(TIM_MST_UP_IRQ, (uint32_t)tim_update_irq_handler);
NVIC_EnableIRQ(TIM_MST_UP_IRQ);
// Output compare interrupt used for timeout feature
NVIC_SetVector(TIM_MST_OC_IRQ, (uint32_t)tim_oc_irq_handler);
NVIC_EnableIRQ(TIM_MST_OC_IRQ);
// Enable timer
TIM_Cmd(TIM_MST, ENABLE);
}
uint32_t us_ticker_read() {
uint32_t counter, counter2;
if (!us_ticker_inited) us_ticker_init();
// A situation might appear when Master overflows right after Slave is read and before the
// new (overflowed) value of Master is read. Which would make the code below consider the
// previous (incorrect) value of Slave and the new value of Master, which would return a
// value in the past. Avoid this by computing consecutive values of the timer until they
// are properly ordered.
counter = (uint32_t)(SlaveCounter << 16);
counter += TIM_MST->CNT;
while (1) {
counter2 = (uint32_t)(SlaveCounter << 16);
counter2 += TIM_MST->CNT;
if (counter2 > counter) {
break;
}
counter = counter2;
}
return counter2;
}
void us_ticker_set_interrupt(unsigned int timestamp) {
int delta = (int)(timestamp - us_ticker_read());
uint16_t cval = TIM_MST->CNT;
if (delta <= 0) { // This event was in the past
us_ticker_irq_handler();
}
else {
oc_int_part = (uint32_t)(delta >> 16);
oc_rem_part = (uint16_t)(delta & 0xFFFF);
if (oc_rem_part <= (0xFFFF - cval)) {
set_compare(cval + oc_rem_part);
oc_rem_part = 0;
} else {
set_compare(0xFFFF);
oc_rem_part = oc_rem_part - (0xFFFF - cval);
}
}
}
void us_ticker_disable_interrupt(void) {
TIM_ITConfig(TIM_MST, TIM_IT_CC1, DISABLE);
}
void us_ticker_clear_interrupt(void) {
if (TIM_GetITStatus(TIM_MST, TIM_IT_CC1) == SET) {
TIM_ClearITPendingBit(TIM_MST, TIM_IT_CC1);
}
}

2
libraries/rtos/rtx/RTX_CM_lib.h
View File

@ -226,7 +226,7 @@ osThreadDef_t os_thread_def_main = {(os_pthread)main, osPriorityNormal, 0, NULL}
#elif defined(TARGET_LPC1347)
#define INITIAL_SP (0x10002000UL)
#elif defined(TARGET_STM32F100RB)
#elif defined(TARGET_STM32F100RB) || defined(TARGET_STM32F051R8)
#define INITIAL_SP (0x20002000UL)
#else

6
libraries/rtos/rtx/RTX_Conf_CM.c
View File

@ -51,7 +51,7 @@
#ifndef OS_TASKCNT
# if defined(TARGET_LPC1768) || defined(TARGET_LPC2368) || defined(TARGET_LPC4088) || defined(TARGET_LPC1347) || defined(TARGET_KL46Z)
# define OS_TASKCNT 14
# elif defined(TARGET_LPC11U24) || defined(TARGET_LPC11U35_401) || defined(TARGET_LPC11U35_501) || defined(TARGET_LPC1114) || defined(TARGET_LPC812) || defined(TARGET_KL25Z) || defined(TARGET_STM32F100RB)
# elif defined(TARGET_LPC11U24) || defined(TARGET_LPC11U35_401) || defined(TARGET_LPC11U35_501) || defined(TARGET_LPC1114) || defined(TARGET_LPC812) || defined(TARGET_KL25Z) || defined(TARGET_STM32F100RB) || defined(TARGET_STM32F051R8)
# define OS_TASKCNT 6
# else
# error "no target defined"
@ -62,7 +62,7 @@
#ifndef OS_SCHEDULERSTKSIZE
# if defined(TARGET_LPC1768) || defined(TARGET_LPC2368) || defined(TARGET_LPC4088) || defined(TARGET_LPC1347) || defined(TARGET_KL46Z)
# define OS_SCHEDULERSTKSIZE 256
# elif defined(TARGET_LPC11U24) || defined(TARGET_LPC11U35_401) || defined(TARGET_LPC11U35_501) || defined(TARGET_LPC1114) || defined(TARGET_LPC812) || defined(TARGET_KL25Z) || defined(TARGET_STM32F100RB)
# elif defined(TARGET_LPC11U24) || defined(TARGET_LPC11U35_401) || defined(TARGET_LPC11U35_501) || defined(TARGET_LPC1114) || defined(TARGET_LPC812) || defined(TARGET_KL25Z) || defined(TARGET_STM32F100RB) || defined(TARGET_STM32F051R8)
# define OS_SCHEDULERSTKSIZE 128
# else
# error "no target defined"
@ -111,7 +111,7 @@
# elif defined(TARGET_LPC1347)
# define OS_CLOCK 72000000
# elif defined(TARGET_LPC11U24) || defined(TARGET_LPC11U35_401) || defined(TARGET_LPC11U35_501) || defined(TARGET_LPC1114) || defined(TARGET_KL25Z) || defined(TARGET_KL46Z)
# elif defined(TARGET_LPC11U24) || defined(TARGET_LPC11U35_401) || defined(TARGET_LPC11U35_501) || defined(TARGET_LPC1114) || defined(TARGET_KL25Z) || defined(TARGET_KL46Z) || defined(TARGET_STM32F051R8)
# define OS_CLOCK 48000000
# elif defined(TARGET_LPC812)

9
libraries/tests/mbed/pwm/pwm.cpp
View File

@ -67,6 +67,15 @@ int main() {
printf("Initialize PWM on pin PB_3 with duty cycle: %.2f\n", pwm_1.read());
printf("Initialize PWM on pin PB_4 with duty cycle: %.2f\n", pwm_2.read());
#elif defined(TARGET_DISCO_F051R8)
PwmOut pwm_1(PA_7);
PwmOut pwm_2(PC_7);
pwm_1.write(0.75);
pwm_2.write(0.50);
printf("Initialize PWM on pin PA_7 with duty cycle: %.2f\n", pwm_1.read());
printf("Initialize PWM on pin PC_7 with duty cycle: %.2f\n", pwm_2.read());
#endif
notify_completion(true);

2
libraries/tests/mbed/sd/main.cpp
View File

@ -8,6 +8,8 @@ SDFileSystem sd(PTD2, PTD3, PTD1, PTD0, "sd");
SDFileSystem sd(p12, p13, p15, p14, "sd");
#elif defined(TARGET_NUCLEO_F103RB)
SDFileSystem sd(D11, D12, D13, D10, "sd");
#elif defined(TARGET_DISCO_F051R8)
SDFileSystem sd(SPI_MOSI, SPI_MISO, SPI_SCK, SPI_CS, "sd");
#else
SDFileSystem sd(p11, p12, p13, p14, "sd");
#endif

61
workspace_tools/export/gcc_arm_disco_f051r8.tmpl Normal file
View File

@ -0,0 +1,61 @@
# This file was automagically generated by mbed.org. For more information,
# see http://mbed.org/handbook/Exporting-to-GCC-ARM-Embedded
GCC_BIN =
PROJECT = {{name}}
OBJECTS = {% for f in to_be_compiled %}{{f}} {% endfor %}
SYS_OBJECTS = {% for f in object_files %}{{f}} {% endfor %}
INCLUDE_PATHS = {% for p in include_paths %}-I{{p}} {% endfor %}
LIBRARY_PATHS = {% for p in library_paths %}-L{{p}} {% endfor %}
LIBRARIES = {% for lib in libraries %}-l{{lib}} {% endfor %}
LINKER_SCRIPT = {{linker_script}}
###############################################################################
AS = $(GCC_BIN)arm-none-eabi-as
CC = $(GCC_BIN)arm-none-eabi-gcc
CPP = $(GCC_BIN)arm-none-eabi-g++
LD = $(GCC_BIN)arm-none-eabi-gcc
OBJCOPY = $(GCC_BIN)arm-none-eabi-objcopy
OBJDUMP = $(GCC_BIN)arm-none-eabi-objdump
SIZE = $(GCC_BIN)arm-none-eabi-size
CPU = -mcpu=cortex-m0 -mthumb
CC_FLAGS = $(CPU) -c -Os -fno-common -fmessage-length=0 -Wall -fno-exceptions -ffunction-sections -fdata-sections -g
CC_SYMBOLS = {% for s in symbols %}-D{{s}} {% endfor %}
LD_FLAGS = -mcpu=cortex-m0 -mthumb -Wl,--gc-sections --specs=nano.specs
#LD_FLAGS += -u _printf_float -u _scanf_float
LD_FLAGS += -Wl,-Map=$(PROJECT).map,--cref
LD_SYS_LIBS = -lstdc++ -lsupc++ -lm -lc -lgcc -lnosys
all: $(PROJECT).bin $(PROJECT).hex size
clean:
rm -f $(PROJECT).bin $(PROJECT).elf $(PROJECT).hex $(PROJECT).map $(PROJECT).lst $(OBJECTS)
.s.o:
$(AS) $(CPU) -o $@ $<
.c.o:
$(CC) $(CC_FLAGS) $(CC_SYMBOLS) -std=gnu99 $(INCLUDE_PATHS) -o $@ $<
.cpp.o:
$(CPP) $(CC_FLAGS) $(CC_SYMBOLS) -std=gnu++98 $(INCLUDE_PATHS) -o $@ $<
$(PROJECT).elf: $(OBJECTS) $(SYS_OBJECTS)
$(LD) $(LD_FLAGS) -T$(LINKER_SCRIPT) $(LIBRARY_PATHS) -o $@ $^ $(LIBRARIES) $(LD_SYS_LIBS) $(LIBRARIES) $(LD_SYS_LIBS)
$(PROJECT).bin: $(PROJECT).elf
@$(OBJCOPY) -O binary $< $@
$(PROJECT).hex: $(PROJECT).elf
@$(OBJCOPY) -O ihex $< $@
$(PROJECT).lst: $(PROJECT).elf
@$(OBJDUMP) -Sdh $< > $@
lst: $(PROJECT).lst
size:
$(SIZE) $(PROJECT).elf

1
workspace_tools/export/gccarm.py
View File

@ -35,6 +35,7 @@ class GccArm(Exporter):
'LPC11U35_501',
'STM32F407',
'DISCO_F100RB',
'DISCO_F051R8',
]
DOT_IN_RELATIVE_PATH = True

1
workspace_tools/export_test.py
View File

@ -95,6 +95,7 @@ if __name__ == '__main__':
('gcc_arm', 'STM32F407'),
('gcc_arm', 'DISCO_F100RB'),
('gcc_arm', 'DISCO_F051R8'),
('ds5_5', 'LPC1768'), ('ds5_5', 'LPC11U24'),

15
workspace_tools/targets.py
View File

@ -355,6 +355,18 @@ class NUCLEO_F302R8(Target):
self.supported_toolchains = ["ARM", "uARM"]
class DISCO_F051R8(Target):
ONLINE_TOOLCHAIN = "uARM"
OUTPUT_NAMING = "8.3"
def __init__(self):
Target.__init__(self)
self.core = "Cortex-M0"
self.extra_labels = ['STM', 'STM32F0', 'STM32F051','STM32F051R8']
self.supported_toolchains = ["GCC_ARM"]
class LPC1347(Target):
def __init__(self):
@ -510,7 +522,8 @@ TARGETS = [
NRF51822(),
UBLOX_C027(),
LPC1549(),
DISCO_F100RB()
DISCO_F100RB(),
DISCO_F051R8()
]
# Map each target name to its unique instance