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Merge branch 'master' of github.com:mbedmicro/mbed

pull/234/head
Bogdan Marinescu 2014-03-25 11:44:32 +00:00
parent 71b306a2d4 11bc6fdd03
commit 249f016cd8
20 changed files with 650 additions and 563 deletions
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2
libraries/mbed/targets/cmsis/TARGET_STM/TARGET_NUCLEO_F302R8/TOOLCHAIN_ARM_STD/startup_stm32f302x8.s
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@ -1,6 +1,6 @@
;******************** (C) COPYRIGHT 2014 STMicroelectronics ******************** ;******************** (C) COPYRIGHT 2014 STMicroelectronics ********************
;* File Name : startup_stm32f302x8.s ;* File Name : startup_stm32f302x8.s
; STM32F302x8 Devices vector table for MDK ARM_MICRO toolchain ; STM32F302x8 Devices vector table for MDK ARM_STD toolchain
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
; Copyright (c) 2014, STMicroelectronics ; Copyright (c) 2014, STMicroelectronics
; All rights reserved. ; All rights reserved.

2
libraries/mbed/targets/cmsis/TARGET_STM/TARGET_NUCLEO_F302R8/stm32f30x.h
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@ -112,7 +112,7 @@
can define the HSE value in your toolchain compiler preprocessor. can define the HSE value in your toolchain compiler preprocessor.
*/ */
#if !defined (HSE_VALUE) #if !defined (HSE_VALUE)
#define HSE_VALUE ((uint32_t)8000000) /*!< Value of the External oscillator in Hz */ #define HSE_VALUE ((uint32_t)8000000) /*!< Value of the External xtal in Hz */
#endif /* HSE_VALUE */ #endif /* HSE_VALUE */
/** /**

222
libraries/mbed/targets/cmsis/TARGET_STM/TARGET_NUCLEO_F302R8/system_stm32f30x.c
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@ -40,34 +40,22 @@
* value to your own configuration. * value to your own configuration.
* *
* 5. This file configures the system clock as follows: * 5. This file configures the system clock as follows:
*=============================================================================
* Supported STM32F30x device
*----------------------------------------------------------------------------- *-----------------------------------------------------------------------------
* System Clock source | PLL(HSI) * System clock source | 1- PLL_HSE_EXTC | 3- PLL_HSI
* | (external 8 MHz clock) | (internal 8 MHz)
* | 2- PLL_HSE_XTAL |
* | (external 8 MHz xtal) |
*----------------------------------------------------------------------------- *-----------------------------------------------------------------------------
* SYSCLK(Hz) | 64000000 * SYSCLK(MHz) | 72 | 64
*----------------------------------------------------------------------------- *-----------------------------------------------------------------------------
* HCLK(Hz) | 64000000 * AHBCLK (MHz) | 72 | 64
*----------------------------------------------------------------------------- *-----------------------------------------------------------------------------
* AHB Prescaler | 1 * APB1CLK (MHz) | 36 | 32
*----------------------------------------------------------------------------- *-----------------------------------------------------------------------------
* APB2 Prescaler | 1 * APB2CLK (MHz) | 72 | 64
*----------------------------------------------------------------------------- *-----------------------------------------------------------------------------
* APB1 Prescaler (Max = 36MHz) | 2 (SPI, ...) * USB capable (48 MHz precise clock) | YES | NO
*----------------------------------------------------------------------------- *-----------------------------------------------------------------------------
* HSE Frequency(Hz) | 8000000
*----------------------------------------------------------------------------
* PLLMUL | 16
*-----------------------------------------------------------------------------
* PREDIV | 2
*-----------------------------------------------------------------------------
* USB Clock | DISABLE
*-----------------------------------------------------------------------------
* Flash Latency(WS) | 2
*-----------------------------------------------------------------------------
* Prefetch Buffer | OFF
*-----------------------------------------------------------------------------
*=============================================================================
****************************************************************************** ******************************************************************************
* @attention * @attention
* *
@ -97,6 +85,7 @@
* *
****************************************************************************** ******************************************************************************
*/ */
/** @addtogroup CMSIS /** @addtogroup CMSIS
* @{ * @{
*/ */
@ -126,6 +115,7 @@
/** @addtogroup STM32F30x_System_Private_Defines /** @addtogroup STM32F30x_System_Private_Defines
* @{ * @{
*/ */
/*!< Uncomment the following line if you need to relocate your vector Table in /*!< Uncomment the following line if you need to relocate your vector Table in
Internal SRAM. */ Internal SRAM. */
/* #define VECT_TAB_SRAM */ /* #define VECT_TAB_SRAM */
@ -139,6 +129,10 @@
* @{ * @{
*/ */
/* Select the clock sources (other than HSI) to start with (0=OFF, 1=ON) */
#define USE_PLL_HSE_EXTC (1) /* Use external clock */
#define USE_PLL_HSE_XTAL (1) /* Use external xtal */
/** /**
* @} * @}
*/ */
@ -147,9 +141,9 @@
* @{ * @{
*/ */
uint32_t SystemCoreClock = 64000000; uint32_t SystemCoreClock = 64000000; /* Default with HSI. Will be updated if HSE is used */
__I uint8_t AHBPrescTable[16] = {0, 0, 0, 0, 0, 0, 0, 0, 1, 2, 3, 4, 6, 7, 8, 9}; __I uint8_t AHBPrescTable[16] = {0, 0, 0, 0, 0, 0, 0, 0, 1, 2, 3, 4, 6, 7, 8, 9};
/** /**
* @} * @}
@ -161,6 +155,12 @@
void SetSysClock(void); void SetSysClock(void);
#if (USE_PLL_HSE_XTAL != 0) || (USE_PLL_HSE_EXTC != 0)
uint8_t SetSysClock_PLL_HSE(uint8_t bypass);
#endif
uint8_t SetSysClock_PLL_HSI(void);
/** /**
* @} * @}
*/ */
@ -208,31 +208,16 @@ void SystemInit(void)
/* Disable all interrupts */ /* Disable all interrupts */
RCC->CIR = 0x00000000; RCC->CIR = 0x00000000;
/* Configure the System clock source, PLL Multiplier and Divider factors, /* Configure the Vector Table location add offset address ------------------*/
AHB/APBx prescalers and Flash settings ----------------------------------*/
SetSysClock();
#ifdef VECT_TAB_SRAM #ifdef VECT_TAB_SRAM
SCB->VTOR = SRAM_BASE | VECT_TAB_OFFSET; /* Vector Table Relocation in Internal SRAM. */ SCB->VTOR = SRAM_BASE | VECT_TAB_OFFSET; /* Vector Table Relocation in Internal SRAM */
#else #else
SCB->VTOR = FLASH_BASE | VECT_TAB_OFFSET; /* Vector Table Relocation in Internal FLASH. */ SCB->VTOR = FLASH_BASE | VECT_TAB_OFFSET; /* Vector Table Relocation in Internal FLASH */
#endif #endif
// ADDED FOR MBED DEBUGGING PURPOSE /* Configure the System clock source, PLL Multiplier and Divider factors,
/* AHB/APBx prescalers and Flash settings */
// Enable GPIOA clock SetSysClock();
RCC_AHBPeriphClockCmd(RCC_AHBPeriph_GPIOA, ENABLE);
// Configure MCO pin (PA8)
GPIO_InitTypeDef GPIO_InitStructure;
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_8;
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF;
GPIO_InitStructure.GPIO_OType = GPIO_OType_PP;
GPIO_InitStructure.GPIO_PuPd = GPIO_PuPd_UP;
GPIO_Init(GPIOA, &GPIO_InitStructure);
// Select the clock to output
RCC_MCOConfig(RCC_MCOSource_SYSCLK, RCC_MCOPrescaler_1);
*/
} }
/** /**
@ -325,31 +310,137 @@ void SystemCoreClockUpdate (void)
*/ */
void SetSysClock(void) void SetSysClock(void)
{ {
/* 1- Try to start with HSE and external clock */
#if USE_PLL_HSE_EXTC != 0
if (SetSysClock_PLL_HSE(1) == 0)
#endif
{
/* 2- If fail try to start with HSE and external xtal */
#if USE_PLL_HSE_XTAL != 0
if (SetSysClock_PLL_HSE(0) == 0)
#endif
{
/* 3- If fail start with HSI clock */
if (SetSysClock_PLL_HSI() == 0)
{
while(1)
{
// [TODO] Put something here to tell the user that a problem occured...
}
}
}
}
/* Update SystemCoreClock variable */
SystemCoreClockUpdate();
/* Output SYSCLK on MCO pin(PA8) for debugging purpose */
/*
// Enable GPIOA clock
RCC_AHBPeriphClockCmd(RCC_AHBPeriph_GPIOA, ENABLE);
// Configure MCO pin (PA8)
GPIO_InitTypeDef GPIO_InitStructure;
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_8;
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF;
GPIO_InitStructure.GPIO_OType = GPIO_OType_PP;
GPIO_InitStructure.GPIO_PuPd = GPIO_PuPd_UP;
GPIO_Init(GPIOA, &GPIO_InitStructure);
// Select the clock to output
RCC_MCOConfig(RCC_MCOSource_SYSCLK, RCC_MCOPrescaler_1);
*/
}
#if (USE_PLL_HSE_XTAL != 0) || (USE_PLL_HSE_EXTC != 0)
/******************************************************************************/
/* PLL (clocked by HSE) used as System clock source */
/******************************************************************************/
uint8_t SetSysClock_PLL_HSE(uint8_t bypass)
{
__IO uint32_t StartUpCounter = 0;
__IO uint32_t HSEStatus = 0;
/* Bypass HSE: can be done only if HSE is OFF */
if (bypass != 0)
{
RCC->CR &= ((uint32_t)~RCC_CR_HSEON); /* To be sure HSE is OFF */
RCC->CR |= ((uint32_t)RCC_CR_HSEBYP);
}
/* Enable HSE */
RCC->CR |= ((uint32_t)RCC_CR_HSEON);
/* Wait till HSE is ready */
do
{
HSEStatus = RCC->CR & RCC_CR_HSERDY;
StartUpCounter++;
} while((HSEStatus == 0) && (StartUpCounter != HSE_STARTUP_TIMEOUT));
/* Check if HSE has started correctly */
if ((RCC->CR & RCC_CR_HSERDY) != RESET)
{
/* Enable prefetch buffer and set flash latency
0WS for 0 < SYSCLK <= 24 MHz
1WS for 24 < SYSCLK <= 48 MHz
2WS for 48 < SYSCLK <= 72 MHz */
FLASH->ACR = FLASH_ACR_PRFTBE | (uint32_t)FLASH_ACR_LATENCY_1; /* 2 WS */
/* Warning: values are obtained with external xtal or clock = 8 MHz */
/* SYSCLK = 72 MHz (8 MHz * 9) */
RCC->CFGR &= (uint32_t)((uint32_t)~(RCC_CFGR_PLLSRC | RCC_CFGR_PLLXTPRE | RCC_CFGR_PLLMULL));
RCC->CFGR |= (uint32_t)(RCC_CFGR_PLLSRC_PREDIV1 | RCC_CFGR_PLLXTPRE_PREDIV1 | RCC_CFGR_PLLMULL9
| RCC_CFGR_HPRE_DIV1 /* HCLK = 72 MHz */
| RCC_CFGR_PPRE2_DIV1 /* PCLK2 = 72 MHz */
| RCC_CFGR_PPRE1_DIV2); /* PCLK1 = 36 MHz */
/* USBCLK = 48 MHz (72 MHz / 1.5) --> USB OK */
/* 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)
{
}
return 1; // OK
}
else
{
return 0; // FAIL
}
}
#endif
/******************************************************************************/ /******************************************************************************/
/* PLL (clocked by HSI) used as System clock source */ /* PLL (clocked by HSI) used as System clock source */
/******************************************************************************/ /******************************************************************************/
uint8_t SetSysClock_PLL_HSI(void)
{
/* At this stage the HSI is already enabled and 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
0WS for 0 < SYSCLK <= 24 MHz
/* Disable Prefetch Buffer and set Flash Latency */ 1WS for 24 < SYSCLK <= 48 MHz
FLASH->ACR = (uint32_t)FLASH_ACR_LATENCY_1; 2WS for 48 < SYSCLK <= 72 MHz */
FLASH->ACR = FLASH_ACR_PRFTBE | (uint32_t)FLASH_ACR_LATENCY_1; /* 2 WS */
/* HCLK = 64 MHz */
RCC->CFGR |= (uint32_t)RCC_CFGR_HPRE_DIV1; /* SYSCLK = 64 MHz (8 MHz / 2 * 16) */
/* PCLK2 = 64 MHz */
RCC->CFGR |= (uint32_t)RCC_CFGR_PPRE2_DIV1;
/* PCLK1 = 32 MHz (SPI, ...) */
RCC->CFGR |= (uint32_t)RCC_CFGR_PPRE1_DIV2;
/* PLL configuration
SYSCLK = 4 MHz * 16 = 64 MHz
*/
RCC->CFGR &= (uint32_t)((uint32_t)~(RCC_CFGR_PLLSRC | RCC_CFGR_PLLXTPRE | RCC_CFGR_PLLMULL)); 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_PLLMULL16); RCC->CFGR |= (uint32_t)(RCC_CFGR_PLLSRC_HSI_Div2 | RCC_CFGR_PLLXTPRE_PREDIV1 | RCC_CFGR_PLLMULL16
| RCC_CFGR_HPRE_DIV1 /* HCLK = 64 MHz */
| RCC_CFGR_PPRE2_DIV1 /* PCLK2 = 64 MHz */
| RCC_CFGR_PPRE1_DIV2); /* PCLK1 = 32 MHz */
/* USBCLK = 42.667 MHz (64 MHz / 1.5) --> USB NOT POSSIBLE */
/* Enable PLL */ /* Enable PLL */
RCC->CR |= RCC_CR_PLLON; RCC->CR |= RCC_CR_PLLON;
@ -367,6 +458,8 @@ void SetSysClock(void)
while ((RCC->CFGR & (uint32_t)RCC_CFGR_SWS) != (uint32_t)RCC_CFGR_SWS_PLL) while ((RCC->CFGR & (uint32_t)RCC_CFGR_SWS) != (uint32_t)RCC_CFGR_SWS_PLL)
{ {
} }
return 1; // OK
} }
/** /**
@ -382,4 +475,3 @@ void SetSysClock(void)
*/ */
/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/ /************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/

2
libraries/mbed/targets/hal/TARGET_STM/TARGET_NUCLEO_F302R8/PeripheralNames.h
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@ -45,7 +45,7 @@ typedef enum {
} DACName; } DACName;
typedef enum { typedef enum {
UART_1 = (int)USART1_BASE, UART_1 = (int)USART1_BASE,
UART_2 = (int)USART2_BASE, UART_2 = (int)USART2_BASE,
UART_3 = (int)USART3_BASE UART_3 = (int)USART3_BASE
} UARTName; } UARTName;

190
libraries/mbed/targets/hal/TARGET_STM/TARGET_NUCLEO_F302R8/PinNames.h
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@ -50,113 +50,113 @@ extern "C" {
// Low nibble = pin number // Low nibble = pin number
#define STM_PORT(X) (((uint32_t)(X) >> 4) & 0xF) #define STM_PORT(X) (((uint32_t)(X) >> 4) & 0xF)
#define STM_PIN(X) ((uint32_t)(X) & 0xF) #define STM_PIN(X) ((uint32_t)(X) & 0xF)
typedef enum { typedef enum {
PIN_INPUT, PIN_INPUT,
PIN_OUTPUT PIN_OUTPUT
} PinDirection; } PinDirection;
typedef enum { typedef enum {
PA_0 = 0x00, PA_0 = 0x00,
PA_1 = 0x01, PA_1 = 0x01,
PA_2 = 0x02, PA_2 = 0x02,
PA_3 = 0x03, PA_3 = 0x03,
PA_4 = 0x04, PA_4 = 0x04,
PA_5 = 0x05, PA_5 = 0x05,
PA_6 = 0x06, PA_6 = 0x06,
PA_7 = 0x07, PA_7 = 0x07,
PA_8 = 0x08, PA_8 = 0x08,
PA_9 = 0x09, PA_9 = 0x09,
PA_10 = 0x0A, PA_10 = 0x0A,
PA_11 = 0x0B, PA_11 = 0x0B,
PA_12 = 0x0C, PA_12 = 0x0C,
PA_13 = 0x0D, PA_13 = 0x0D,
PA_14 = 0x0E, PA_14 = 0x0E,
PA_15 = 0x0F, PA_15 = 0x0F,
PB_0 = 0x10, PB_0 = 0x10,
PB_1 = 0x11, PB_1 = 0x11,
PB_2 = 0x12, PB_2 = 0x12,
PB_3 = 0x13, PB_3 = 0x13,
PB_4 = 0x14, PB_4 = 0x14,
PB_5 = 0x15, PB_5 = 0x15,
PB_6 = 0x16, PB_6 = 0x16,
PB_7 = 0x17, PB_7 = 0x17,
PB_8 = 0x18, PB_8 = 0x18,
PB_9 = 0x19, PB_9 = 0x19,
PB_10 = 0x1A, PB_10 = 0x1A,
PB_11 = 0x1B, PB_11 = 0x1B,
PB_12 = 0x1C, PB_12 = 0x1C,
PB_13 = 0x1D, PB_13 = 0x1D,
PB_14 = 0x1E, PB_14 = 0x1E,
PB_15 = 0x1F, PB_15 = 0x1F,
PC_0 = 0x20, PC_0 = 0x20,
PC_1 = 0x21, PC_1 = 0x21,
PC_2 = 0x22, PC_2 = 0x22,
PC_3 = 0x23, PC_3 = 0x23,
PC_4 = 0x24, PC_4 = 0x24,
PC_5 = 0x25, PC_5 = 0x25,
PC_6 = 0x26, PC_6 = 0x26,
PC_7 = 0x27, PC_7 = 0x27,
PC_8 = 0x28, PC_8 = 0x28,
PC_9 = 0x29, PC_9 = 0x29,
PC_10 = 0x2A, PC_10 = 0x2A,
PC_11 = 0x2B, PC_11 = 0x2B,
PC_12 = 0x2C, PC_12 = 0x2C,
PC_13 = 0x2D, PC_13 = 0x2D,
PC_14 = 0x2E, PC_14 = 0x2E,
PC_15 = 0x2F, PC_15 = 0x2F,
PD_2 = 0x32, PD_2 = 0x32,
PF_0 = 0x50, PF_0 = 0x50,
PF_1 = 0x51, PF_1 = 0x51,
// Arduino connector namings // Arduino connector namings
A0 = PA_0, A0 = PA_0,
A1 = PA_1, A1 = PA_1,
A2 = PA_4, A2 = PA_4,
A3 = PB_0, A3 = PB_0,
A4 = PC_1, A4 = PC_1,
A5 = PC_0, A5 = PC_0,
D0 = PA_3, D0 = PA_3,
D1 = PA_2, D1 = PA_2,
D2 = PA_10, D2 = PA_10,
D3 = PB_3, D3 = PB_3,
D4 = PB_5, D4 = PB_5,
D5 = PB_4, D5 = PB_4,
D6 = PB_10, D6 = PB_10,
D7 = PA_8, D7 = PA_8,
D8 = PA_9, D8 = PA_9,
D9 = PC_7, D9 = PC_7,
D10 = PB_6, D10 = PB_6,
D11 = PA_7, D11 = PA_7,
D12 = PA_6, D12 = PA_6,
D13 = PA_5, D13 = PA_5,
D14 = PB_9, D14 = PB_9,
D15 = PB_8, D15 = PB_8,
// Generic signals namings // Generic signals namings
LED1 = PA_5, LED1 = PA_5,
LED2 = PA_5, LED2 = PA_5,
LED3 = PA_5, LED3 = PA_5,
LED4 = PA_5, LED4 = PA_5,
USER_BUTTON = PC_13, USER_BUTTON = PC_13,
SERIAL_TX = PA_2, SERIAL_TX = PA_2,
SERIAL_RX = PA_3, SERIAL_RX = PA_3,
USBTX = PA_2, USBTX = PA_2,
USBRX = PA_3, USBRX = PA_3,
I2C_SCL = PB_8, I2C_SCL = PB_8,
I2C_SDA = PB_9, I2C_SDA = PB_9,
SPI_MOSI = PA_7, SPI_MOSI = PB_15,
SPI_MISO = PA_6, SPI_MISO = PB_14,
SPI_SCK = PA_5, SPI_SCK = PB_13,
SPI_CS = PB_6, SPI_CS = PB_6,
PWM_OUT = PB_3, PWM_OUT = PB_3,
// Not connected // Not connected
NC = (int)0xFFFFFFFF NC = (int)0xFFFFFFFF
} PinName; } PinName;
typedef enum { typedef enum {

148
libraries/mbed/targets/hal/TARGET_STM/TARGET_NUCLEO_F302R8/analogin_api.c
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@ -56,16 +56,16 @@ static const PinMap PinMap_ADC[] = {
int adc_inited = 0; int adc_inited = 0;
void analogin_init(analogin_t *obj, PinName pin) { void analogin_init(analogin_t *obj, PinName pin) {
ADC_TypeDef *adc; ADC_TypeDef *adc;
ADC_InitTypeDef ADC_InitStructure; ADC_InitTypeDef ADC_InitStructure;
ADC_CommonInitTypeDef ADC_CommonInitStructure; ADC_CommonInitTypeDef ADC_CommonInitStructure;
// Get the peripheral name from the pin and assign it to the object // Get the peripheral name from the pin and assign it to the object
obj->adc = (ADCName)pinmap_peripheral(pin, PinMap_ADC); obj->adc = (ADCName)pinmap_peripheral(pin, PinMap_ADC);
if (obj->adc == (ADCName)NC) { if (obj->adc == (ADCName)NC) {
error("ADC pin mapping failed"); error("ADC pin mapping failed");
} }
// Configure GPIO // Configure GPIO
@ -80,7 +80,7 @@ void analogin_init(analogin_t *obj, PinName pin) {
// Get ADC registers structure address // Get ADC registers structure address
adc = (ADC_TypeDef *)(obj->adc); adc = (ADC_TypeDef *)(obj->adc);
// Enable ADC clock // Enable ADC clock
RCC_ADCCLKConfig(RCC_ADC12PLLCLK_Div1); RCC_ADCCLKConfig(RCC_ADC12PLLCLK_Div1);
RCC_AHBPeriphClockCmd(RCC_AHBPeriph_ADC12, ENABLE); RCC_AHBPeriphClockCmd(RCC_AHBPeriph_ADC12, ENABLE);
@ -90,8 +90,8 @@ void analogin_init(analogin_t *obj, PinName pin) {
wait_us(10); wait_us(10);
ADC_SelectCalibrationMode(adc, ADC_CalibrationMode_Single); ADC_SelectCalibrationMode(adc, ADC_CalibrationMode_Single);
ADC_StartCalibration(adc); ADC_StartCalibration(adc);
while (ADC_GetCalibrationStatus(adc) != RESET ) {} while (ADC_GetCalibrationStatus(adc) != RESET) {}
// Configure ADC // Configure ADC
ADC_CommonInitStructure.ADC_Mode = ADC_Mode_Independent; ADC_CommonInitStructure.ADC_Mode = ADC_Mode_Independent;
ADC_CommonInitStructure.ADC_Clock = ADC_Clock_AsynClkMode; ADC_CommonInitStructure.ADC_Clock = ADC_Clock_AsynClkMode;
@ -99,7 +99,7 @@ void analogin_init(analogin_t *obj, PinName pin) {
ADC_CommonInitStructure.ADC_DMAMode = ADC_DMAMode_OneShot; ADC_CommonInitStructure.ADC_DMAMode = ADC_DMAMode_OneShot;
ADC_CommonInitStructure.ADC_TwoSamplingDelay = 0; ADC_CommonInitStructure.ADC_TwoSamplingDelay = 0;
ADC_CommonInit(adc, &ADC_CommonInitStructure); ADC_CommonInit(adc, &ADC_CommonInitStructure);
ADC_InitStructure.ADC_ContinuousConvMode = ADC_ContinuousConvMode_Disable; ADC_InitStructure.ADC_ContinuousConvMode = ADC_ContinuousConvMode_Disable;
ADC_InitStructure.ADC_Resolution = ADC_Resolution_12b; ADC_InitStructure.ADC_Resolution = ADC_Resolution_12b;
ADC_InitStructure.ADC_ExternalTrigConvEvent = ADC_ExternalTrigConvEvent_0; ADC_InitStructure.ADC_ExternalTrigConvEvent = ADC_ExternalTrigConvEvent_0;
@ -112,83 +112,83 @@ void analogin_init(analogin_t *obj, PinName pin) {
// Enable ADC // Enable ADC
ADC_Cmd(adc, ENABLE); ADC_Cmd(adc, ENABLE);
while(!ADC_GetFlagStatus(adc, ADC_FLAG_RDY)) {} while (!ADC_GetFlagStatus(adc, ADC_FLAG_RDY)) {}
} }
} }
static inline uint16_t adc_read(analogin_t *obj) { static inline uint16_t adc_read(analogin_t *obj) {
// Get ADC registers structure address // Get ADC registers structure address
ADC_TypeDef *adc = (ADC_TypeDef *)(obj->adc); ADC_TypeDef *adc = (ADC_TypeDef *)(obj->adc);
uint8_t channel = 0; uint8_t channel = 0;
// Configure ADC channel
switch (obj->pin) {
case PA_0:
channel = ADC_Channel_1;
break;
case PA_1:
channel = ADC_Channel_2;
break;
case PA_2:
channel = ADC_Channel_3;
break;
case PA_3:
channel = ADC_Channel_4;
break;
case PA_4:
channel = ADC_Channel_5;
break;
case PC_0:
channel = ADC_Channel_6;
break;
case PC_1:
channel = ADC_Channel_7;
break;
case PC_2:
channel = ADC_Channel_8;
break;
case PC_3:
channel = ADC_Channel_9;
break;
case PA_6:
channel = ADC_Channel_10;
break;
case PB_0:
channel = ADC_Channel_11;
break;
case PB_1:
channel = ADC_Channel_12;
break;
case PB_13:
channel = ADC_Channel_13;
break;
case PB_11:
channel = ADC_Channel_14;
break;
case PA_7:
channel = ADC_Channel_15;
break;
default:
return 0;
}
ADC_RegularChannelConfig(adc, channel, 1, ADC_SampleTime_7Cycles5); // Configure ADC channel
switch (obj->pin) {
ADC_StartConversion(adc); // Start conversion case PA_0:
channel = ADC_Channel_1;
while(ADC_GetFlagStatus(adc, ADC_FLAG_EOC) == RESET); // Wait end of conversion break;
case PA_1:
return(ADC_GetConversionValue(adc)); // Get conversion value channel = ADC_Channel_2;
break;
case PA_2:
channel = ADC_Channel_3;
break;
case PA_3:
channel = ADC_Channel_4;
break;
case PA_4:
channel = ADC_Channel_5;
break;
case PC_0:
channel = ADC_Channel_6;
break;
case PC_1:
channel = ADC_Channel_7;
break;
case PC_2:
channel = ADC_Channel_8;
break;
case PC_3:
channel = ADC_Channel_9;
break;
case PA_6:
channel = ADC_Channel_10;
break;
case PB_0:
channel = ADC_Channel_11;
break;
case PB_1:
channel = ADC_Channel_12;
break;
case PB_13:
channel = ADC_Channel_13;
break;
case PB_11:
channel = ADC_Channel_14;
break;
case PA_7:
channel = ADC_Channel_15;
break;
default:
return 0;
}
ADC_RegularChannelConfig(adc, channel, 1, ADC_SampleTime_7Cycles5);
ADC_StartConversion(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) { uint16_t analogin_read_u16(analogin_t *obj) {
return(adc_read(obj)); return (adc_read(obj));
} }
float analogin_read(analogin_t *obj) { float analogin_read(analogin_t *obj) {
uint16_t value = adc_read(obj); uint16_t value = adc_read(obj);
return (float)value * (1.0f / (float)0xFFF); // 12 bits range return (float)value * (1.0f / (float)0xFFF); // 12 bits range
} }
#endif #endif

9
libraries/mbed/targets/hal/TARGET_STM/TARGET_NUCLEO_F302R8/analogout_api.c
View File

@ -63,7 +63,7 @@ void analogout_init(dac_t *obj, PinName pin) {
RCC_APB1PeriphClockCmd(RCC_APB1Periph_DAC, ENABLE); RCC_APB1PeriphClockCmd(RCC_APB1Periph_DAC, ENABLE);
// Configure and enable DAC channel // Configure and enable DAC channel
DAC_StructInit(&DAC_InitStructure); DAC_StructInit(&DAC_InitStructure);
DAC_Init(dac, DAC_Channel_1, &DAC_InitStructure); DAC_Init(dac, DAC_Channel_1, &DAC_InitStructure);
DAC_Cmd(dac, DAC_Channel_1, ENABLE); DAC_Cmd(dac, DAC_Channel_1, ENABLE);
@ -95,10 +95,9 @@ void analogout_write(dac_t *obj, float value) {
void analogout_write_u16(dac_t *obj, uint16_t value) { void analogout_write_u16(dac_t *obj, uint16_t value) {
if (value > (uint16_t)RANGE_12BIT) { if (value > (uint16_t)RANGE_12BIT) {
dac_write(obj, (uint16_t)RANGE_12BIT); // Max value dac_write(obj, (uint16_t)RANGE_12BIT); // Max value
} } else {
else { dac_write(obj, value);
dac_write(obj, value);
} }
} }

9
libraries/mbed/targets/hal/TARGET_STM/TARGET_NUCLEO_F302R8/gpio_api.c
View File

@ -33,7 +33,7 @@
extern uint32_t Set_GPIO_Clock(uint32_t port_idx); extern uint32_t Set_GPIO_Clock(uint32_t port_idx);
uint32_t gpio_set(PinName pin) { uint32_t gpio_set(PinName pin) {
if (pin == NC) return 0; if (pin == NC) return 0;
pin_function(pin, STM_PIN_DATA(GPIO_Mode_IN, 0, GPIO_PuPd_NOPULL, 0xFF)); pin_function(pin, STM_PIN_DATA(GPIO_Mode_IN, 0, GPIO_PuPd_NOPULL, 0xFF));
@ -45,11 +45,11 @@ void gpio_init(gpio_t *obj, PinName pin) {
if (pin == NC) return; if (pin == NC) return;
uint32_t port_index = STM_PORT(pin); uint32_t port_index = STM_PORT(pin);
// Enable GPIO clock // Enable GPIO clock
uint32_t gpio_add = Set_GPIO_Clock(port_index); uint32_t gpio_add = Set_GPIO_Clock(port_index);
GPIO_TypeDef *gpio = (GPIO_TypeDef *)gpio_add; GPIO_TypeDef *gpio = (GPIO_TypeDef *)gpio_add;
// Fill GPIO object structure for future use // Fill GPIO object structure for future use
obj->pin = pin; obj->pin = pin;
obj->mask = gpio_set(pin); obj->mask = gpio_set(pin);
@ -65,8 +65,7 @@ void gpio_mode(gpio_t *obj, PinMode mode) {
void gpio_dir(gpio_t *obj, PinDirection direction) { void gpio_dir(gpio_t *obj, PinDirection direction) {
if (direction == PIN_OUTPUT) { if (direction == PIN_OUTPUT) {
pin_function(obj->pin, STM_PIN_DATA(GPIO_Mode_OUT, GPIO_OType_PP, GPIO_PuPd_NOPULL, 0xFF)); pin_function(obj->pin, STM_PIN_DATA(GPIO_Mode_OUT, GPIO_OType_PP, GPIO_PuPd_NOPULL, 0xFF));
} } else { // PIN_INPUT
else { // PIN_INPUT
pin_function(obj->pin, STM_PIN_DATA(GPIO_Mode_IN, 0, GPIO_PuPd_NOPULL, 0xFF)); pin_function(obj->pin, STM_PIN_DATA(GPIO_Mode_IN, 0, GPIO_PuPd_NOPULL, 0xFF));
} }
} }

78
libraries/mbed/targets/hal/TARGET_STM/TARGET_NUCLEO_F302R8/gpio_irq_api.c
View File

@ -53,30 +53,47 @@ static void handle_interrupt_in(uint32_t irq_index) {
uint32_t pin = (uint32_t)(1 << channel_pin[irq_index]); uint32_t pin = (uint32_t)(1 << channel_pin[irq_index]);
// Clear interrupt flag // Clear interrupt flag
if (EXTI_GetITStatus(channel_pin[irq_index]) != RESET) if (EXTI_GetITStatus(channel_pin[irq_index]) != RESET) {
{
EXTI_ClearITPendingBit(channel_pin[irq_index]); EXTI_ClearITPendingBit(channel_pin[irq_index]);
} }
if (channel_ids[irq_index] == 0) return; if (channel_ids[irq_index] == 0) return;
// Check which edge has generated the irq // Check which edge has generated the irq
if ((gpio->IDR & pin) == 0) { if ((gpio->IDR & pin) == 0) {
irq_handler(channel_ids[irq_index], IRQ_FALL); irq_handler(channel_ids[irq_index], IRQ_FALL);
} } else {
else {
irq_handler(channel_ids[irq_index], IRQ_RISE); irq_handler(channel_ids[irq_index], IRQ_RISE);
} }
} }
// The irq_index is passed to the function static void gpio_irq0(void) {
static void gpio_irq0(void) {handle_interrupt_in(0);} // EXTI line 0 handle_interrupt_in(0); // EXTI line 0
static void gpio_irq1(void) {handle_interrupt_in(1);} // EXTI line 1 }
static void gpio_irq2(void) {handle_interrupt_in(2);} // EXTI line 2
static void gpio_irq3(void) {handle_interrupt_in(3);} // EXTI line 3 static void gpio_irq1(void) {
static void gpio_irq4(void) {handle_interrupt_in(4);} // EXTI line 4 handle_interrupt_in(1); // EXTI line 1
static void gpio_irq5(void) {handle_interrupt_in(5);} // EXTI lines 5 to 9 }
static void gpio_irq6(void) {handle_interrupt_in(6);} // EXTI lines 10 to 15
static void gpio_irq2(void) {
handle_interrupt_in(2); // EXTI line 2
}
static void gpio_irq3(void) {
handle_interrupt_in(3); // EXTI line 3
}
static void gpio_irq4(void) {
handle_interrupt_in(4); // EXTI line 4
}
static void gpio_irq5(void) {
handle_interrupt_in(5); // EXTI lines 5 to 9
}
static void gpio_irq6(void) {
handle_interrupt_in(6); // EXTI lines 10 to 15
}
extern uint32_t Set_GPIO_Clock(uint32_t port_idx); extern uint32_t Set_GPIO_Clock(uint32_t port_idx);
@ -146,18 +163,18 @@ int gpio_irq_init(gpio_irq_t *obj, PinName pin, gpio_irq_handler handler, uint32
// Enable SYSCFG clock // Enable SYSCFG clock
RCC_APB2PeriphClockCmd(RCC_APB2Periph_SYSCFG, ENABLE); RCC_APB2PeriphClockCmd(RCC_APB2Periph_SYSCFG, ENABLE);
// Connect EXTI line to pin // Connect EXTI line to pin
SYSCFG_EXTILineConfig(port_index, pin_index); SYSCFG_EXTILineConfig(port_index, pin_index);
// Configure EXTI line // Configure EXTI line
EXTI_InitTypeDef EXTI_InitStructure; EXTI_InitTypeDef EXTI_InitStructure;
EXTI_InitStructure.EXTI_Line = pin_index; EXTI_InitStructure.EXTI_Line = pin_index;
EXTI_InitStructure.EXTI_Mode = EXTI_Mode_Interrupt; EXTI_InitStructure.EXTI_Mode = EXTI_Mode_Interrupt;
EXTI_InitStructure.EXTI_Trigger = EXTI_Trigger_Falling; EXTI_InitStructure.EXTI_Trigger = EXTI_Trigger_Falling;
EXTI_InitStructure.EXTI_LineCmd = ENABLE; EXTI_InitStructure.EXTI_LineCmd = ENABLE;
EXTI_Init(&EXTI_InitStructure); EXTI_Init(&EXTI_InitStructure);
// Enable and set EXTI interrupt to the lowest priority // Enable and set EXTI interrupt to the lowest priority
NVIC_InitTypeDef NVIC_InitStructure; NVIC_InitTypeDef NVIC_InitStructure;
NVIC_InitStructure.NVIC_IRQChannel = irq_n; NVIC_InitStructure.NVIC_IRQChannel = irq_n;
@ -165,7 +182,7 @@ int gpio_irq_init(gpio_irq_t *obj, PinName pin, gpio_irq_handler handler, uint32
NVIC_InitStructure.NVIC_IRQChannelSubPriority = 0x0F; NVIC_InitStructure.NVIC_IRQChannelSubPriority = 0x0F;
NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE; NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;
NVIC_Init(&NVIC_InitStructure); NVIC_Init(&NVIC_InitStructure);
NVIC_SetVector(irq_n, vector); NVIC_SetVector(irq_n, vector);
NVIC_EnableIRQ(irq_n); NVIC_EnableIRQ(irq_n);
@ -176,9 +193,9 @@ int gpio_irq_init(gpio_irq_t *obj, PinName pin, gpio_irq_handler handler, uint32
channel_ids[irq_index] = id; channel_ids[irq_index] = id;
channel_gpio[irq_index] = gpio_add; channel_gpio[irq_index] = gpio_add;
channel_pin[irq_index] = pin_index; channel_pin[irq_index] = pin_index;
irq_handler = handler; irq_handler = handler;
return 0; return 0;
} }
@ -189,7 +206,7 @@ void gpio_irq_free(gpio_irq_t *obj) {
// Disable EXTI line // Disable EXTI line
EXTI_InitTypeDef EXTI_InitStructure; EXTI_InitTypeDef EXTI_InitStructure;
EXTI_StructInit(&EXTI_InitStructure); EXTI_StructInit(&EXTI_InitStructure);
EXTI_Init(&EXTI_InitStructure); EXTI_Init(&EXTI_InitStructure);
obj->event = EDGE_NONE; obj->event = EDGE_NONE;
} }
@ -198,36 +215,33 @@ void gpio_irq_set(gpio_irq_t *obj, gpio_irq_event event, uint32_t enable) {
EXTI_InitStructure.EXTI_Line = channel_pin[obj->irq_index]; EXTI_InitStructure.EXTI_Line = channel_pin[obj->irq_index];
EXTI_InitStructure.EXTI_Mode = EXTI_Mode_Interrupt; EXTI_InitStructure.EXTI_Mode = EXTI_Mode_Interrupt;
if (event == IRQ_RISE) { if (event == IRQ_RISE) {
if ((obj->event == EDGE_FALL) || (obj->event == EDGE_BOTH)) { if ((obj->event == EDGE_FALL) || (obj->event == EDGE_BOTH)) {
EXTI_InitStructure.EXTI_Trigger = EXTI_Trigger_Rising_Falling; EXTI_InitStructure.EXTI_Trigger = EXTI_Trigger_Rising_Falling;
obj->event = EDGE_BOTH; obj->event = EDGE_BOTH;
} } else { // NONE or RISE
else { // NONE or RISE
EXTI_InitStructure.EXTI_Trigger = EXTI_Trigger_Rising; EXTI_InitStructure.EXTI_Trigger = EXTI_Trigger_Rising;
obj->event = EDGE_RISE; obj->event = EDGE_RISE;
} }
} }
if (event == IRQ_FALL) { if (event == IRQ_FALL) {
if ((obj->event == EDGE_RISE) || (obj->event == EDGE_BOTH)) { if ((obj->event == EDGE_RISE) || (obj->event == EDGE_BOTH)) {
EXTI_InitStructure.EXTI_Trigger = EXTI_Trigger_Rising_Falling; EXTI_InitStructure.EXTI_Trigger = EXTI_Trigger_Rising_Falling;
obj->event = EDGE_BOTH; obj->event = EDGE_BOTH;
} } else { // NONE or FALL
else { // NONE or FALL
EXTI_InitStructure.EXTI_Trigger = EXTI_Trigger_Falling; EXTI_InitStructure.EXTI_Trigger = EXTI_Trigger_Falling;
obj->event = EDGE_FALL; obj->event = EDGE_FALL;
} }
} }
if (enable) { if (enable) {
EXTI_InitStructure.EXTI_LineCmd = ENABLE; EXTI_InitStructure.EXTI_LineCmd = ENABLE;
} } else {
else {
EXTI_InitStructure.EXTI_LineCmd = DISABLE; EXTI_InitStructure.EXTI_LineCmd = DISABLE;
} }
EXTI_Init(&EXTI_InitStructure); EXTI_Init(&EXTI_InitStructure);
} }

3
libraries/mbed/targets/hal/TARGET_STM/TARGET_NUCLEO_F302R8/gpio_object.h
View File

@ -50,8 +50,7 @@ typedef struct {
static inline void gpio_write(gpio_t *obj, int value) { static inline void gpio_write(gpio_t *obj, int value) {
if (value) { if (value) {
*obj->reg_set = obj->mask; *obj->reg_set = obj->mask;
} } else {
else {
*obj->reg_clr = obj->mask; *obj->reg_clr = obj->mask;
} }
} }

112
libraries/mbed/targets/hal/TARGET_STM/TARGET_NUCLEO_F302R8/i2c_api.c
View File

@ -36,8 +36,8 @@
#include "error.h" #include "error.h"
/* Timeout values for flags and events waiting loops. These timeouts are /* Timeout values for flags and events waiting loops. These timeouts are
not based on accurate values, they just guarantee that the application will not based on accurate values, they just guarantee that the application will
not remain stuck if the I2C communication is corrupted. */ not remain stuck if the I2C communication is corrupted. */
#define FLAG_TIMEOUT ((int)0x1000) #define FLAG_TIMEOUT ((int)0x1000)
#define LONG_TIMEOUT ((int)0x8000) #define LONG_TIMEOUT ((int)0x8000)
@ -62,19 +62,19 @@ static const PinMap PinMap_I2C_SCL[] = {
{NC, NC, 0} {NC, NC, 0}
}; };
void i2c_init(i2c_t *obj, PinName sda, PinName scl) { void i2c_init(i2c_t *obj, PinName sda, PinName scl) {
// Determine the I2C to use // Determine the I2C to use
I2CName i2c_sda = (I2CName)pinmap_peripheral(sda, PinMap_I2C_SDA); I2CName i2c_sda = (I2CName)pinmap_peripheral(sda, PinMap_I2C_SDA);
I2CName i2c_scl = (I2CName)pinmap_peripheral(scl, PinMap_I2C_SCL); I2CName i2c_scl = (I2CName)pinmap_peripheral(scl, PinMap_I2C_SCL);
obj->i2c = (I2CName)pinmap_merge(i2c_sda, i2c_scl); obj->i2c = (I2CName)pinmap_merge(i2c_sda, i2c_scl);
if (obj->i2c == (I2CName)NC) { if (obj->i2c == (I2CName)NC) {
error("I2C pin mapping failed"); error("I2C pin mapping failed");
} }
// Enable I2C clock // Enable I2C clock
if (obj->i2c == I2C_1) { if (obj->i2c == I2C_1) {
RCC_APB1PeriphClockCmd(RCC_APB1Periph_I2C1, ENABLE); RCC_APB1PeriphClockCmd(RCC_APB1Periph_I2C1, ENABLE);
} }
if (obj->i2c == I2C_2) { if (obj->i2c == I2C_2) {
@ -83,18 +83,18 @@ void i2c_init(i2c_t *obj, PinName sda, PinName scl) {
if (obj->i2c == I2C_3) { if (obj->i2c == I2C_3) {
RCC_APB1PeriphClockCmd(RCC_APB1Periph_I2C3, ENABLE); RCC_APB1PeriphClockCmd(RCC_APB1Periph_I2C3, ENABLE);
} }
// Configure I2C pins // Configure I2C pins
pinmap_pinout(scl, PinMap_I2C_SCL); pinmap_pinout(scl, PinMap_I2C_SCL);
pin_mode(scl, OpenDrain); pin_mode(scl, OpenDrain);
pinmap_pinout(sda, PinMap_I2C_SDA); pinmap_pinout(sda, PinMap_I2C_SDA);
pin_mode(sda, OpenDrain); pin_mode(sda, OpenDrain);
// Reset to clear pending flags if any // Reset to clear pending flags if any
i2c_reset(obj); i2c_reset(obj);
// I2C configuration // I2C configuration
i2c_frequency(obj, 100000); // 100 kHz per default i2c_frequency(obj, 100000); // 100 kHz per default
} }
void i2c_frequency(i2c_t *obj, int hz) { void i2c_frequency(i2c_t *obj, int hz) {
@ -106,7 +106,7 @@ void i2c_frequency(i2c_t *obj, int hz) {
RCC_APB2PeriphClockCmd(RCC_APB2Periph_SYSCFG, ENABLE); // Enable SYSCFG clock RCC_APB2PeriphClockCmd(RCC_APB2Periph_SYSCFG, ENABLE); // Enable SYSCFG clock
SYSCFG_I2CFastModePlusConfig(SYSCFG_I2CFastModePlus_I2C1, DISABLE); SYSCFG_I2CFastModePlusConfig(SYSCFG_I2CFastModePlus_I2C1, DISABLE);
SYSCFG_I2CFastModePlusConfig(SYSCFG_I2CFastModePlus_I2C2, DISABLE); SYSCFG_I2CFastModePlusConfig(SYSCFG_I2CFastModePlus_I2C2, DISABLE);
/* /*
Values calculated with I2C_Timing_Configuration_V1.0.1.xls file (see AN4235) Values calculated with I2C_Timing_Configuration_V1.0.1.xls file (see AN4235)
* Standard mode (up to 100 kHz) * Standard mode (up to 100 kHz)
@ -120,30 +120,30 @@ void i2c_frequency(i2c_t *obj, int hz) {
- Fall time = 10ns - Fall time = 10ns
*/ */
switch (hz) { switch (hz) {
case 100000: case 100000:
tim = 0x00201D2B; // Standard mode tim = 0x00201D2B; // Standard mode
break; break;
case 200000: case 200000:
tim = 0x0010021E; // Fast Mode tim = 0x0010021E; // Fast Mode
break; break;
case 400000: case 400000:
tim = 0x0010020A; // Fast Mode tim = 0x0010020A; // Fast Mode
break; break;
case 1000000: case 1000000:
tim = 0x00100001; // Fast Mode Plus tim = 0x00100001; // Fast Mode Plus
// Enable the Fast Mode Plus capability // Enable the Fast Mode Plus capability
if (obj->i2c == I2C_1) { if (obj->i2c == I2C_1) {
SYSCFG_I2CFastModePlusConfig(SYSCFG_I2CFastModePlus_I2C1, ENABLE); SYSCFG_I2CFastModePlusConfig(SYSCFG_I2CFastModePlus_I2C1, ENABLE);
} }
if (obj->i2c == I2C_2) { if (obj->i2c == I2C_2) {
SYSCFG_I2CFastModePlusConfig(SYSCFG_I2CFastModePlus_I2C2, ENABLE); SYSCFG_I2CFastModePlusConfig(SYSCFG_I2CFastModePlus_I2C2, ENABLE);
} }
break; break;
default: default:
error("Only 100kHz, 200kHz, 400kHz and 1MHz I2C frequencies are supported."); error("Only 100kHz, 200kHz, 400kHz and 1MHz I2C frequencies are supported.");
break; break;
} }
// I2C configuration // I2C configuration
I2C_DeInit(i2c); I2C_DeInit(i2c);
I2C_InitStructure.I2C_Mode = I2C_Mode_I2C; I2C_InitStructure.I2C_Mode = I2C_Mode_I2C;
@ -154,7 +154,7 @@ void i2c_frequency(i2c_t *obj, int hz) {
I2C_InitStructure.I2C_AcknowledgedAddress = I2C_AcknowledgedAddress_7bit; I2C_InitStructure.I2C_AcknowledgedAddress = I2C_AcknowledgedAddress_7bit;
I2C_InitStructure.I2C_Timing = tim; I2C_InitStructure.I2C_Timing = tim;
I2C_Init(i2c, &I2C_InitStructure); I2C_Init(i2c, &I2C_InitStructure);
I2C_Cmd(i2c, ENABLE); I2C_Cmd(i2c, ENABLE);
} }
@ -178,9 +178,9 @@ inline int i2c_start(i2c_t *obj) {
inline int i2c_stop(i2c_t *obj) { inline int i2c_stop(i2c_t *obj) {
I2C_TypeDef *i2c = (I2C_TypeDef *)(obj->i2c); I2C_TypeDef *i2c = (I2C_TypeDef *)(obj->i2c);
I2C_GenerateSTOP(i2c, ENABLE); I2C_GenerateSTOP(i2c, ENABLE);
return 0; return 0;
} }
@ -188,18 +188,18 @@ int i2c_read(i2c_t *obj, int address, char *data, int length, int stop) {
I2C_TypeDef *i2c = (I2C_TypeDef *)(obj->i2c); I2C_TypeDef *i2c = (I2C_TypeDef *)(obj->i2c);
int count; int count;
int value; int value;
if (length == 0) return 0; if (length == 0) return 0;
// Configure slave address, nbytes, reload, end mode and start or stop generation // Configure slave address, nbytes, reload, end mode and start or stop generation
I2C_TransferHandling(i2c, address, length, I2C_AutoEnd_Mode, I2C_Generate_Start_Read); I2C_TransferHandling(i2c, address, length, I2C_AutoEnd_Mode, I2C_Generate_Start_Read);
// Read all bytes // Read all bytes
for (count = 0; count < length; count++) { for (count = 0; count < length; count++) {
value = i2c_byte_read(obj, 0); value = i2c_byte_read(obj, 0);
data[count] = (char)value; data[count] = (char)value;
} }
return length; return length;
} }
@ -207,19 +207,19 @@ int i2c_write(i2c_t *obj, int address, const char *data, int length, int stop) {
I2C_TypeDef *i2c = (I2C_TypeDef *)(obj->i2c); I2C_TypeDef *i2c = (I2C_TypeDef *)(obj->i2c);
//int timeout; //int timeout;
int count; int count;
if (length == 0) return 0; if (length == 0) return 0;
// [TODO] The stop is always sent even with I2C_SoftEnd_Mode. To be corrected. // [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 // Configure slave address, nbytes, reload, end mode and start or stop generation
//if (stop) { //if (stop) {
I2C_TransferHandling(i2c, address, length, I2C_AutoEnd_Mode, I2C_Generate_Start_Write); I2C_TransferHandling(i2c, address, length, I2C_AutoEnd_Mode, I2C_Generate_Start_Write);
//} //}
//else { //else {
// I2C_TransferHandling(i2c, address, length, I2C_SoftEnd_Mode, I2C_Generate_Start_Write); // I2C_TransferHandling(i2c, address, length, I2C_SoftEnd_Mode, I2C_Generate_Start_Write);
//} //}
// Write all bytes // Write all bytes
for (count = 0; count < length; count++) { for (count = 0; count < length; count++) {
if (i2c_byte_write(obj, data[count]) != 1) { if (i2c_byte_write(obj, data[count]) != 1) {
@ -242,7 +242,7 @@ int i2c_write(i2c_t *obj, int address, const char *data, int length, int stop) {
I2C_ClearFlag(i2c, I2C_ICR_STOPCF); I2C_ClearFlag(i2c, I2C_ICR_STOPCF);
} }
*/ */
return count; return count;
} }
@ -250,9 +250,9 @@ int i2c_byte_read(i2c_t *obj, int last) {
I2C_TypeDef *i2c = (I2C_TypeDef *)(obj->i2c); I2C_TypeDef *i2c = (I2C_TypeDef *)(obj->i2c);
uint8_t data; uint8_t data;
int timeout; int timeout;
// Wait until the byte is received // Wait until the byte is received
timeout = FLAG_TIMEOUT; timeout = FLAG_TIMEOUT;
while (I2C_GetFlagStatus(i2c, I2C_ISR_RXNE) == RESET) { while (I2C_GetFlagStatus(i2c, I2C_ISR_RXNE) == RESET) {
timeout--; timeout--;
if (timeout == 0) { if (timeout == 0) {
@ -261,7 +261,7 @@ int i2c_byte_read(i2c_t *obj, int last) {
} }
data = I2C_ReceiveData(i2c); data = I2C_ReceiveData(i2c);
return (int)data; return (int)data;
} }
@ -277,14 +277,14 @@ int i2c_byte_write(i2c_t *obj, int data) {
return 0; return 0;
} }
} }
I2C_SendData(i2c, (uint8_t)data); I2C_SendData(i2c, (uint8_t)data);
return 1; return 1;
} }
void i2c_reset(i2c_t *obj) { void i2c_reset(i2c_t *obj) {
if (obj->i2c == I2C_1) { if (obj->i2c == I2C_1) {
RCC_APB1PeriphResetCmd(RCC_APB1Periph_I2C1, ENABLE); RCC_APB1PeriphResetCmd(RCC_APB1Periph_I2C1, ENABLE);
RCC_APB1PeriphResetCmd(RCC_APB1Periph_I2C1, DISABLE); RCC_APB1PeriphResetCmd(RCC_APB1Periph_I2C1, DISABLE);
} }
@ -294,7 +294,7 @@ void i2c_reset(i2c_t *obj) {
} }
if (obj->i2c == I2C_3) { if (obj->i2c == I2C_3) {
RCC_APB1PeriphResetCmd(RCC_APB1Periph_I2C3, ENABLE); RCC_APB1PeriphResetCmd(RCC_APB1Periph_I2C3, ENABLE);
RCC_APB1PeriphResetCmd(RCC_APB1Periph_I2C3, DISABLE); RCC_APB1PeriphResetCmd(RCC_APB1Periph_I2C3, DISABLE);
} }
} }
@ -303,7 +303,7 @@ void i2c_reset(i2c_t *obj) {
void i2c_slave_address(i2c_t *obj, int idx, uint32_t address, uint32_t mask) { void i2c_slave_address(i2c_t *obj, int idx, uint32_t address, uint32_t mask) {
I2C_TypeDef *i2c = (I2C_TypeDef *)(obj->i2c); I2C_TypeDef *i2c = (I2C_TypeDef *)(obj->i2c);
uint16_t tmpreg; uint16_t tmpreg;
// Get the old register value // Get the old register value
tmpreg = i2c->OAR1; tmpreg = i2c->OAR1;
// Reset address bits // Reset address bits
@ -326,28 +326,28 @@ void i2c_slave_mode(i2c_t *obj, int enable_slave) {
int i2c_slave_receive(i2c_t *obj) { int i2c_slave_receive(i2c_t *obj) {
// TO BE DONE // TO BE DONE
return(0); return (0);
} }
int i2c_slave_read(i2c_t *obj, char *data, int length) { int i2c_slave_read(i2c_t *obj, char *data, int length) {
int count = 0; int count = 0;
// Read all bytes // Read all bytes
for (count = 0; count < length; count++) { for (count = 0; count < length; count++) {
data[count] = i2c_byte_read(obj, 0); data[count] = i2c_byte_read(obj, 0);
} }
return count; return count;
} }
int i2c_slave_write(i2c_t *obj, const char *data, int length) { int i2c_slave_write(i2c_t *obj, const char *data, int length) {
int count = 0; int count = 0;
// Write all bytes // Write all bytes
for (count = 0; count < length; count++) { for (count = 0; count < length; count++) {
i2c_byte_write(obj, data[count]); i2c_byte_write(obj, data[count]);
} }
return count; return count;
} }

4
libraries/mbed/targets/hal/TARGET_STM/TARGET_NUCLEO_F302R8/objects.h
View File

@ -48,7 +48,7 @@ struct gpio_irq_s {
struct port_s { struct port_s {
PortName port; PortName port;
uint32_t mask; uint32_t mask;
PinDirection direction; PinDirection direction;
__IO uint16_t *reg_in; __IO uint16_t *reg_in;
__IO uint16_t *reg_out; __IO uint16_t *reg_out;
}; };
@ -69,7 +69,7 @@ struct serial_s {
uint32_t baudrate; uint32_t baudrate;
uint32_t databits; uint32_t databits;
uint32_t stopbits; uint32_t stopbits;
uint32_t parity; uint32_t parity;
}; };
struct spi_s { struct spi_s {

8
libraries/mbed/targets/hal/TARGET_STM/TARGET_NUCLEO_F302R8/pinmap.c
View File

@ -86,7 +86,7 @@ void pin_function(PinName pin, int data) {
if (afnum != 0xFF) { if (afnum != 0xFF) {
GPIO_PinAFConfig(gpio, (uint16_t)pin_index, afnum); GPIO_PinAFConfig(gpio, (uint16_t)pin_index, afnum);
} }
// Configure GPIO // Configure GPIO
GPIO_InitTypeDef GPIO_InitStructure; GPIO_InitTypeDef GPIO_InitStructure;
GPIO_InitStructure.GPIO_Pin = (uint16_t)(1 << pin_index); GPIO_InitStructure.GPIO_Pin = (uint16_t)(1 << pin_index);
@ -95,7 +95,7 @@ void pin_function(PinName pin, int data) {
GPIO_InitStructure.GPIO_OType = (GPIOOType_TypeDef)otype; GPIO_InitStructure.GPIO_OType = (GPIOOType_TypeDef)otype;
GPIO_InitStructure.GPIO_PuPd = (GPIOPuPd_TypeDef)pupd; GPIO_InitStructure.GPIO_PuPd = (GPIOPuPd_TypeDef)pupd;
GPIO_Init(gpio, &GPIO_InitStructure); GPIO_Init(gpio, &GPIO_InitStructure);
// [TODO] Disconnect JTAG-DP + SW-DP signals. // [TODO] Disconnect JTAG-DP + SW-DP signals.
// Warning: Need to reconnect under reset // Warning: Need to reconnect under reset
//if ((pin == PA_13) || (pin == PA_14)) { //if ((pin == PA_13) || (pin == PA_14)) {
@ -103,7 +103,7 @@ void pin_function(PinName pin, int data) {
//} //}
//if ((pin == PA_15) || (pin == PB_3) || (pin == PB_4)) { //if ((pin == PA_15) || (pin == PB_3) || (pin == PB_4)) {
// //
//} //}
} }
/** /**
@ -124,5 +124,5 @@ void pin_mode(PinName pin, PinMode mode) {
if (pupd > 2) pupd = 0; // Open-drain = No pull-up/No pull-down 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)(~(GPIO_PUPDR_PUPDR0 << (pin_index * 2)));
gpio->PUPDR |= (uint32_t)(pupd << (pin_index * 2)); gpio->PUPDR |= (uint32_t)(pupd << (pin_index * 2));
} }

16
libraries/mbed/targets/hal/TARGET_STM/TARGET_NUCLEO_F302R8/port_api.c
View File

@ -39,7 +39,7 @@ 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, ...) // high nibble = port number (0=A, 1=B, 2=C, 3=D, 4=E, 5=F, ...)
// low nibble = pin number // low nibble = pin number
PinName port_pin(PortName port, int pin_n) { PinName port_pin(PortName port, int pin_n) {
return (PinName)(pin_n + (port << 4)); return (PinName)(pin_n + (port << 4));
} }
void port_init(port_t *obj, PortName port, int mask, PinDirection dir) { void port_init(port_t *obj, PortName port, int mask, PinDirection dir) {
@ -52,9 +52,9 @@ void port_init(port_t *obj, PortName port, int mask, PinDirection dir) {
// Fill PORT object structure for future use // Fill PORT object structure for future use
obj->port = port; obj->port = port;
obj->mask = mask; obj->mask = mask;
obj->direction = dir; obj->direction = dir;
obj->reg_in = &gpio->IDR; obj->reg_in = &gpio->IDR;
obj->reg_out = &gpio->ODR; obj->reg_out = &gpio->ODR;
port_dir(obj, dir); port_dir(obj, dir);
} }
@ -66,16 +66,15 @@ void port_dir(port_t *obj, PinDirection dir) {
if (obj->mask & (1 << i)) { // If the pin is used if (obj->mask & (1 << i)) { // If the pin is used
if (dir == PIN_OUTPUT) { if (dir == PIN_OUTPUT) {
pin_function(port_pin(obj->port, i), STM_PIN_DATA(GPIO_Mode_OUT, GPIO_OType_PP, GPIO_PuPd_NOPULL, 0xFF)); pin_function(port_pin(obj->port, i), STM_PIN_DATA(GPIO_Mode_OUT, GPIO_OType_PP, GPIO_PuPd_NOPULL, 0xFF));
} } else { // PIN_INPUT
else { // PIN_INPUT
pin_function(port_pin(obj->port, i), STM_PIN_DATA(GPIO_Mode_IN, 0, GPIO_PuPd_NOPULL, 0xFF)); 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) { void port_mode(port_t *obj, PinMode mode) {
uint32_t i; uint32_t i;
for (i = 0; i < 16; i++) { // Process all pins for (i = 0; i < 16; i++) { // Process all pins
if (obj->mask & (1 << i)) { // If the pin is used if (obj->mask & (1 << i)) { // If the pin is used
pin_mode(port_pin(obj->port, i), mode); pin_mode(port_pin(obj->port, i), mode);
@ -90,8 +89,7 @@ void port_write(port_t *obj, int value) {
int port_read(port_t *obj) { int port_read(port_t *obj) {
if (obj->direction == PIN_OUTPUT) { if (obj->direction == PIN_OUTPUT) {
return (*obj->reg_out & obj->mask); return (*obj->reg_out & obj->mask);
} } else { // PIN_INPUT
else { // PIN_INPUT
return (*obj->reg_in & obj->mask); return (*obj->reg_in & obj->mask);
} }
} }

102
libraries/mbed/targets/hal/TARGET_STM/TARGET_NUCLEO_F302R8/pwmout_api.c
View File

@ -35,77 +35,77 @@
// TIM2 cannot be used because already used by the us_ticker // TIM2 cannot be used because already used by the us_ticker
static const PinMap PinMap_PWM[] = { static const PinMap PinMap_PWM[] = {
//{PA_0, PWM_2, STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_UP, GPIO_AF_1)}, // TIM2_CH1 // {PA_0, PWM_2, STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_UP, GPIO_AF_1)}, // TIM2_CH1
//{PA_1, PWM_2, STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_UP, GPIO_AF_1)}, // TIM2_CH2 // {PA_1, PWM_2, STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_UP, GPIO_AF_1)}, // TIM2_CH2
{PA_1, PWM_15, STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_UP, GPIO_AF_9)}, // TIM15_CH1N {PA_1, PWM_15, STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_UP, GPIO_AF_9)}, // TIM15_CH1N
{PA_2, PWM_15, STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_UP, GPIO_AF_9)}, // TIM15_CH1 {PA_2, PWM_15, STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_UP, GPIO_AF_9)}, // TIM15_CH1
{PA_3, PWM_15, STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_UP, GPIO_AF_9)}, // TIM15_CH2 {PA_3, PWM_15, STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_UP, GPIO_AF_9)}, // TIM15_CH2
//{PA_5, PWM_2, STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_UP, GPIO_AF_1)}, // TIM2_CH1 // {PA_5, PWM_2, STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_UP, GPIO_AF_1)}, // TIM2_CH1
{PA_6, PWM_16, STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_UP, GPIO_AF_1)}, // TIM16_CH1 {PA_6, PWM_16, STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_UP, GPIO_AF_1)}, // TIM16_CH1
{PA_7, PWM_17, STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_UP, GPIO_AF_1)}, // TIM17_CH1 {PA_7, PWM_17, STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_UP, GPIO_AF_1)}, // TIM17_CH1
//{PA_7, PWM_1, STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_UP, GPIO_AF_6)}, // TIM1_CH1N // {PA_7, PWM_1, STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_UP, GPIO_AF_6)}, // TIM1_CH1N
{PA_8, PWM_1, STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_UP, GPIO_AF_6)}, // TIM1_CH1 {PA_8, PWM_1, STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_UP, GPIO_AF_6)}, // TIM1_CH1
{PA_9, PWM_1, STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_UP, GPIO_AF_6)}, // TIM1_CH2 {PA_9, PWM_1, STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_UP, GPIO_AF_6)}, // TIM1_CH2
//{PA_9, PWM_2, STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_UP, GPIO_AF_10)}, // TIM2_CH3 // {PA_9, PWM_2, STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_UP, GPIO_AF_10)}, // TIM2_CH3
{PA_10, PWM_1, STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_UP, GPIO_AF_6)}, // TIM1_CH3 {PA_10, PWM_1, STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_UP, GPIO_AF_6)}, // TIM1_CH3
//{PA_10, PWM_2, STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_UP, GPIO_AF_10)}, // TIM2_CH4 // {PA_10, PWM_2, STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_UP, GPIO_AF_10)}, // TIM2_CH4
{PA_11, PWM_1, STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_UP, GPIO_AF_11)}, // TIM1_CH4 {PA_11, PWM_1, STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_UP, GPIO_AF_11)}, // TIM1_CH4
//{PA_11, PWM_1, STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_UP, GPIO_AF_6)}, // TIM1_CH1N // {PA_11, PWM_1, STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_UP, GPIO_AF_6)}, // TIM1_CH1N
{PA_12, PWM_16, STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_UP, GPIO_AF_1)}, // TIM16_CH1 {PA_12, PWM_16, STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_UP, GPIO_AF_1)}, // TIM16_CH1
//{PA_12, PWM_1, STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_UP, GPIO_AF_6)}, // TIM1_CH2N // {PA_12, PWM_1, STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_UP, GPIO_AF_6)}, // TIM1_CH2N
{PA_13, PWM_16, STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_UP, GPIO_AF_1)}, // TIM16_CH1N {PA_13, PWM_16, STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_UP, GPIO_AF_1)}, // TIM16_CH1N
//{PA_15, PWM_2, STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_UP, GPIO_AF_1)}, // TIM2_CH1 // {PA_15, PWM_2, STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_UP, GPIO_AF_1)}, // TIM2_CH1
{PB_0, PWM_1, STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_UP, GPIO_AF_6)}, // TIM1_CH2N {PB_0, PWM_1, STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_UP, GPIO_AF_6)}, // TIM1_CH2N
{PB_1, PWM_1, STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_UP, GPIO_AF_6)}, // TIM1_CH3N {PB_1, PWM_1, STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_UP, GPIO_AF_6)}, // TIM1_CH3N
//{PB_3, PWM_2, STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_UP, GPIO_AF_1)}, // TIM2_CH2 // {PB_3, PWM_2, STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_UP, GPIO_AF_1)}, // TIM2_CH2
{PB_4, PWM_16, STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_UP, GPIO_AF_1)}, // TIM16_CH1 {PB_4, PWM_16, STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_UP, GPIO_AF_1)}, // TIM16_CH1
{PB_5, PWM_17, STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_UP, GPIO_AF_10)}, // TIM17_CH1 {PB_5, PWM_17, STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_UP, GPIO_AF_10)}, // TIM17_CH1
{PB_6, PWM_16, STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_UP, GPIO_AF_1)}, // TIM16_CH1N {PB_6, PWM_16, STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_UP, GPIO_AF_1)}, // TIM16_CH1N
{PB_7, PWM_17, STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_UP, GPIO_AF_1)}, // TIM17_CH1N {PB_7, PWM_17, STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_UP, GPIO_AF_1)}, // TIM17_CH1N
{PB_8, PWM_16, STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_UP, GPIO_AF_1)}, // TIM16_CH1 {PB_8, PWM_16, STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_UP, GPIO_AF_1)}, // TIM16_CH1
{PB_9, PWM_17, STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_UP, GPIO_AF_1)}, // TIM17_CH1 {PB_9, PWM_17, STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_UP, GPIO_AF_1)}, // TIM17_CH1
//{PB_10, PWM_2, STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_UP, GPIO_AF_1)}, // TIM2_CH3 // {PB_10, PWM_2, STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_UP, GPIO_AF_1)}, // TIM2_CH3
//{PB_11, PWM_2, STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_UP, GPIO_AF_1)}, // TIM2_CH4 // {PB_11, PWM_2, STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_UP, GPIO_AF_1)}, // TIM2_CH4
{PB_13, PWM_1, STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_UP, GPIO_AF_6)}, // TIM1_CH1N {PB_13, PWM_1, STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_UP, GPIO_AF_6)}, // TIM1_CH1N
{PB_14, PWM_15, STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_UP, GPIO_AF_1)}, // TIM15_CH1 {PB_14, PWM_15, STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_UP, GPIO_AF_1)}, // TIM15_CH1
//{PB_14, PWM_1, STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_UP, GPIO_AF_6)}, // TIM1_CH2N // {PB_14, PWM_1, STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_UP, GPIO_AF_6)}, // TIM1_CH2N
{PB_15, PWM_15, STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_UP, GPIO_AF_1)}, // TIM15_CH2 {PB_15, PWM_15, STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_UP, GPIO_AF_1)}, // TIM15_CH2
//{PB_15, PWM_15, STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_UP, GPIO_AF_2)}, // TIM15_CH1N // {PB_15, PWM_15, STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_UP, GPIO_AF_2)}, // TIM15_CH1N
//{PB_15, PWM_1, STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_UP, GPIO_AF_4)}, // TIM1_CH3N // {PB_15, PWM_1, STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_UP, GPIO_AF_4)}, // TIM1_CH3N
{PC_0, PWM_1, STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_UP, GPIO_AF_2)}, // TIM1_CH1 {PC_0, PWM_1, STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_UP, GPIO_AF_2)}, // TIM1_CH1
{PC_1, PWM_1, STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_UP, GPIO_AF_2)}, // TIM1_CH2 {PC_1, PWM_1, STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_UP, GPIO_AF_2)}, // TIM1_CH2
{PC_2, PWM_1, STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_UP, GPIO_AF_2)}, // TIM1_CH3 {PC_2, PWM_1, STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_UP, GPIO_AF_2)}, // TIM1_CH3
{PC_3, PWM_1, STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_UP, GPIO_AF_2)}, // TIM1_CH4 {PC_3, PWM_1, STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_UP, GPIO_AF_2)}, // TIM1_CH4
{PC_13, PWM_1, STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_UP, GPIO_AF_4)}, // TIM1_CH1N {PC_13, PWM_1, STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_UP, GPIO_AF_4)}, // TIM1_CH1N
{PF_0, PWM_1, STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_UP, GPIO_AF_6)}, // TIM1_CH3N {PF_0, PWM_1, STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_UP, GPIO_AF_6)}, // TIM1_CH3N
{NC, NC, 0} {NC, NC, 0}
}; };
void pwmout_init(pwmout_t* obj, PinName pin) { void pwmout_init(pwmout_t* obj, PinName pin) {
// Get the peripheral name from the pin and assign it to the object // Get the peripheral name from the pin and assign it to the object
obj->pwm = (PWMName)pinmap_peripheral(pin, PinMap_PWM); obj->pwm = (PWMName)pinmap_peripheral(pin, PinMap_PWM);
if (obj->pwm == (PWMName)NC) { if (obj->pwm == (PWMName)NC) {
error("PWM pinout mapping failed"); error("PWM pinout mapping failed");
} }
// Enable TIM clock // Enable TIM clock
if (obj->pwm == PWM_1) RCC_APB2PeriphClockCmd(RCC_APB2Periph_TIM1, ENABLE); if (obj->pwm == PWM_1) RCC_APB2PeriphClockCmd(RCC_APB2Periph_TIM1, ENABLE);
if (obj->pwm == PWM_15) RCC_APB2PeriphClockCmd(RCC_APB2Periph_TIM15, ENABLE); if (obj->pwm == PWM_15) RCC_APB2PeriphClockCmd(RCC_APB2Periph_TIM15, ENABLE);
if (obj->pwm == PWM_16) RCC_APB2PeriphClockCmd(RCC_APB2Periph_TIM16, ENABLE); if (obj->pwm == PWM_16) RCC_APB2PeriphClockCmd(RCC_APB2Periph_TIM16, ENABLE);
if (obj->pwm == PWM_17) RCC_APB2PeriphClockCmd(RCC_APB2Periph_TIM17, ENABLE); if (obj->pwm == PWM_17) RCC_APB2PeriphClockCmd(RCC_APB2Periph_TIM17, ENABLE);
// Configure GPIO // Configure GPIO
pinmap_pinout(pin, PinMap_PWM); pinmap_pinout(pin, PinMap_PWM);
obj->pin = pin; obj->pin = pin;
obj->period = 0; obj->period = 0;
obj->pulse = 0; obj->pulse = 0;
pwmout_period_us(obj, 20000); // 20 ms per default pwmout_period_us(obj, 20000); // 20 ms per default
} }
@ -117,33 +117,33 @@ void pwmout_free(pwmout_t* obj) {
void pwmout_write(pwmout_t* obj, float value) { void pwmout_write(pwmout_t* obj, float value) {
TIM_TypeDef *tim = (TIM_TypeDef *)(obj->pwm); TIM_TypeDef *tim = (TIM_TypeDef *)(obj->pwm);
TIM_OCInitTypeDef TIM_OCInitStructure; TIM_OCInitTypeDef TIM_OCInitStructure;
if (value < (float)0.0) { if (value < (float)0.0) {
value = (float)0.0; value = (float)0.0;
} else if (value > (float)1.0) { } else if (value > (float)1.0) {
value = (float)1.0; value = (float)1.0;
} }
obj->pulse = (uint32_t)((float)obj->period * value); obj->pulse = (uint32_t)((float)obj->period * value);
// Configure channels // Configure channels
TIM_OCInitStructure.TIM_OCMode = TIM_OCMode_PWM1; TIM_OCInitStructure.TIM_OCMode = TIM_OCMode_PWM1;
TIM_OCInitStructure.TIM_Pulse = obj->pulse; TIM_OCInitStructure.TIM_Pulse = obj->pulse;
TIM_OCInitStructure.TIM_OCPolarity = TIM_OCPolarity_High; TIM_OCInitStructure.TIM_OCPolarity = TIM_OCPolarity_High;
TIM_OCInitStructure.TIM_OCNPolarity = TIM_OCPolarity_High; TIM_OCInitStructure.TIM_OCNPolarity = TIM_OCPolarity_High;
TIM_OCInitStructure.TIM_OCIdleState = TIM_OCIdleState_Reset; TIM_OCInitStructure.TIM_OCIdleState = TIM_OCIdleState_Reset;
TIM_OCInitStructure.TIM_OCNIdleState = TIM_OCNIdleState_Reset; TIM_OCInitStructure.TIM_OCNIdleState = TIM_OCNIdleState_Reset;
switch (obj->pin) { switch (obj->pin) {
// Channels 1 // Channels 1
//case PA_0: // case PA_0:
case PA_2: case PA_2:
//case PA_5: // case PA_5:
case PA_6: case PA_6:
case PA_7: case PA_7:
case PA_8: case PA_8:
case PA_12: case PA_12:
//case PA_15: // case PA_15:
case PB_4: case PB_4:
case PB_5: case PB_5:
case PB_8: case PB_8:
@ -156,23 +156,23 @@ void pwmout_write(pwmout_t* obj, float value) {
break; break;
// Channels 1N // Channels 1N
case PA_1: case PA_1:
//case PA_7: // case PA_7:
//case PA_11: // case PA_11:
case PA_13: case PA_13:
case PB_6: case PB_6:
case PB_7: case PB_7:
case PB_13: case PB_13:
//case PB_15: // case PB_15:
case PC_13: case PC_13:
TIM_OCInitStructure.TIM_OutputNState = TIM_OutputNState_Enable; TIM_OCInitStructure.TIM_OutputNState = TIM_OutputNState_Enable;
TIM_OC1PreloadConfig(tim, TIM_OCPreload_Enable); TIM_OC1PreloadConfig(tim, TIM_OCPreload_Enable);
TIM_OC1Init(tim, &TIM_OCInitStructure); TIM_OC1Init(tim, &TIM_OCInitStructure);
break; break;
// Channels 2 // Channels 2
//case PA_1: // case PA_1:
case PA_3: case PA_3:
case PA_9: case PA_9:
//case PB_3: // case PB_3:
case PB_15: case PB_15:
case PC_1: case PC_1:
TIM_OCInitStructure.TIM_OutputState = TIM_OutputState_Enable; TIM_OCInitStructure.TIM_OutputState = TIM_OutputState_Enable;
@ -180,17 +180,17 @@ void pwmout_write(pwmout_t* obj, float value) {
TIM_OC2Init(tim, &TIM_OCInitStructure); TIM_OC2Init(tim, &TIM_OCInitStructure);
break; break;
// Channels 2N // Channels 2N
//case PA_12: // case PA_12:
case PB_0: case PB_0:
//case PB_14: // case PB_14:
TIM_OCInitStructure.TIM_OutputNState = TIM_OutputNState_Enable; TIM_OCInitStructure.TIM_OutputNState = TIM_OutputNState_Enable;
TIM_OC2PreloadConfig(tim, TIM_OCPreload_Enable); TIM_OC2PreloadConfig(tim, TIM_OCPreload_Enable);
TIM_OC2Init(tim, &TIM_OCInitStructure); TIM_OC2Init(tim, &TIM_OCInitStructure);
break; break;
// Channels 3 // Channels 3
//case PA_9: // case PA_9:
case PA_10: case PA_10:
//case PB_10: // case PB_10:
case PC_2: case PC_2:
TIM_OCInitStructure.TIM_OutputState = TIM_OutputState_Enable; TIM_OCInitStructure.TIM_OutputState = TIM_OutputState_Enable;
TIM_OC3PreloadConfig(tim, TIM_OCPreload_Enable); TIM_OC3PreloadConfig(tim, TIM_OCPreload_Enable);
@ -199,15 +199,15 @@ void pwmout_write(pwmout_t* obj, float value) {
// Channels 3N // Channels 3N
case PB_1: case PB_1:
case PF_0: case PF_0:
//case PB_15: // case PB_15:
TIM_OCInitStructure.TIM_OutputNState = TIM_OutputNState_Enable; TIM_OCInitStructure.TIM_OutputNState = TIM_OutputNState_Enable;
TIM_OC3PreloadConfig(tim, TIM_OCPreload_Enable); TIM_OC3PreloadConfig(tim, TIM_OCPreload_Enable);
TIM_OC3Init(tim, &TIM_OCInitStructure); TIM_OC3Init(tim, &TIM_OCInitStructure);
break; break;
// Channels 4 // Channels 4
//case PA_10: // case PA_10:
case PA_11: case PA_11:
//case PB_11: // case PB_11:
case PC_3: case PC_3:
TIM_OCInitStructure.TIM_OutputState = TIM_OutputState_Enable; TIM_OCInitStructure.TIM_OutputState = TIM_OutputState_Enable;
TIM_OC4PreloadConfig(tim, TIM_OCPreload_Enable); TIM_OC4PreloadConfig(tim, TIM_OCPreload_Enable);
@ -215,7 +215,7 @@ void pwmout_write(pwmout_t* obj, float value) {
break; break;
default: default:
return; return;
} }
} }
float pwmout_read(pwmout_t* obj) { float pwmout_read(pwmout_t* obj) {
@ -239,10 +239,10 @@ void pwmout_period_us(pwmout_t* obj, int us) {
TIM_TimeBaseInitTypeDef TIM_TimeBaseStructure; TIM_TimeBaseInitTypeDef TIM_TimeBaseStructure;
float dc = pwmout_read(obj); float dc = pwmout_read(obj);
TIM_Cmd(tim, DISABLE); TIM_Cmd(tim, DISABLE);
obj->period = us; obj->period = us;
TIM_TimeBaseStructInit(&TIM_TimeBaseStructure); TIM_TimeBaseStructInit(&TIM_TimeBaseStructure);
TIM_TimeBaseStructure.TIM_Period = obj->period - 1; TIM_TimeBaseStructure.TIM_Period = obj->period - 1;
TIM_TimeBaseStructure.TIM_Prescaler = (uint16_t)(SystemCoreClock / 1000000) - 1; // 1 µs tick TIM_TimeBaseStructure.TIM_Prescaler = (uint16_t)(SystemCoreClock / 1000000) - 1; // 1 µs tick
@ -252,14 +252,14 @@ void pwmout_period_us(pwmout_t* obj, int us) {
// Set duty cycle again // Set duty cycle again
pwmout_write(obj, dc); pwmout_write(obj, dc);
TIM_ARRPreloadConfig(tim, ENABLE); TIM_ARRPreloadConfig(tim, ENABLE);
// Warning: Main Output must be enabled on TIM1, TIM8, TIM5, TIM6 and TIM17 // Warning: Main Output must be enabled on TIM1, TIM8, TIM5, TIM6 and TIM17
if ((obj->pwm == PWM_1) || (obj->pwm == PWM_15) || (obj->pwm == PWM_16) || (obj->pwm == PWM_17)) { if ((obj->pwm == PWM_1) || (obj->pwm == PWM_15) || (obj->pwm == PWM_16) || (obj->pwm == PWM_17)) {
TIM_CtrlPWMOutputs(tim, ENABLE); TIM_CtrlPWMOutputs(tim, ENABLE);
} }
TIM_Cmd(tim, ENABLE); TIM_Cmd(tim, ENABLE);
} }

34
libraries/mbed/targets/hal/TARGET_STM/TARGET_NUCLEO_F302R8/rtc_api.c
View File

@ -39,27 +39,27 @@ void rtc_init(void) {
// Be sure to start correctly // Be sure to start correctly
RCC_BackupResetCmd(ENABLE); RCC_BackupResetCmd(ENABLE);
RCC_BackupResetCmd(DISABLE); RCC_BackupResetCmd(DISABLE);
// Note: the LSI is used as RTC source clock // Note: the LSI is used as RTC source clock
// The RTC Clock may vary due to LSI frequency dispersion. // The RTC Clock may vary due to LSI frequency dispersion.
RCC_LSICmd(ENABLE); // Enable LSI RCC_LSICmd(ENABLE); // Enable LSI
while (RCC_GetFlagStatus(RCC_FLAG_LSIRDY) == RESET) {} // Wait until ready while (RCC_GetFlagStatus(RCC_FLAG_LSIRDY) == RESET) {} // Wait until ready
RCC_RTCCLKConfig(RCC_RTCCLKSource_LSI); // Select LSI as RTC Clock Source RCC_RTCCLKConfig(RCC_RTCCLKSource_LSI); // Select LSI as RTC Clock Source
RCC_RTCCLKCmd(ENABLE); // Enable RTC Clock RCC_RTCCLKCmd(ENABLE); // Enable RTC Clock
RTC_WaitForSynchro(); // Wait for RTC registers synchronization RTC_WaitForSynchro(); // Wait for RTC registers synchronization
uint32_t lsi_freq = 40000; // [TODO] To be measured precisely using a timer input capture uint32_t lsi_freq = 40000; // [TODO] To be measured precisely using a timer input capture
RTC_InitTypeDef RTC_InitStructure; RTC_InitTypeDef RTC_InitStructure;
RTC_InitStructure.RTC_AsynchPrediv = 127; RTC_InitStructure.RTC_AsynchPrediv = 127;
RTC_InitStructure.RTC_SynchPrediv = (lsi_freq / 128) - 1; RTC_InitStructure.RTC_SynchPrediv = (lsi_freq / 128) - 1;
RTC_InitStructure.RTC_HourFormat = RTC_HourFormat_24; RTC_InitStructure.RTC_HourFormat = RTC_HourFormat_24;
RTC_Init(&RTC_InitStructure); RTC_Init(&RTC_InitStructure);
rtc_inited = 1; rtc_inited = 1;
} }
@ -93,11 +93,11 @@ time_t rtc_read(void) {
RTC_DateTypeDef dateStruct; RTC_DateTypeDef dateStruct;
RTC_TimeTypeDef timeStruct; RTC_TimeTypeDef timeStruct;
struct tm timeinfo; struct tm timeinfo;
// Read actual date and time // Read actual date and time
RTC_GetTime(RTC_Format_BIN, &timeStruct); RTC_GetTime(RTC_Format_BIN, &timeStruct);
RTC_GetDate(RTC_Format_BIN, &dateStruct); RTC_GetDate(RTC_Format_BIN, &dateStruct);
// Setup a tm structure based on the RTC // Setup a tm structure based on the RTC
timeinfo.tm_wday = dateStruct.RTC_WeekDay; timeinfo.tm_wday = dateStruct.RTC_WeekDay;
timeinfo.tm_mon = dateStruct.RTC_Month - 1; timeinfo.tm_mon = dateStruct.RTC_Month - 1;
@ -106,11 +106,11 @@ time_t rtc_read(void) {
timeinfo.tm_hour = timeStruct.RTC_Hours; timeinfo.tm_hour = timeStruct.RTC_Hours;
timeinfo.tm_min = timeStruct.RTC_Minutes; timeinfo.tm_min = timeStruct.RTC_Minutes;
timeinfo.tm_sec = timeStruct.RTC_Seconds; timeinfo.tm_sec = timeStruct.RTC_Seconds;
// Convert to timestamp // Convert to timestamp
time_t t = mktime(&timeinfo); time_t t = mktime(&timeinfo);
return t; return t;
} }
void rtc_write(time_t t) { void rtc_write(time_t t) {
@ -119,7 +119,7 @@ void rtc_write(time_t t) {
// Convert the time into a tm // Convert the time into a tm
struct tm *timeinfo = localtime(&t); struct tm *timeinfo = localtime(&t);
// Fill RTC structures // Fill RTC structures
dateStruct.RTC_WeekDay = timeinfo->tm_wday; dateStruct.RTC_WeekDay = timeinfo->tm_wday;
dateStruct.RTC_Month = timeinfo->tm_mon + 1; dateStruct.RTC_Month = timeinfo->tm_mon + 1;
@ -129,10 +129,10 @@ void rtc_write(time_t t) {
timeStruct.RTC_Minutes = timeinfo->tm_min; timeStruct.RTC_Minutes = timeinfo->tm_min;
timeStruct.RTC_Seconds = timeinfo->tm_sec; timeStruct.RTC_Seconds = timeinfo->tm_sec;
timeStruct.RTC_H12 = RTC_HourFormat_24; timeStruct.RTC_H12 = RTC_HourFormat_24;
// Change the RTC current date/time // Change the RTC current date/time
PWR_BackupAccessCmd(ENABLE); // Enable access to RTC PWR_BackupAccessCmd(ENABLE); // Enable access to RTC
RTC_SetDate(RTC_Format_BIN, &dateStruct); RTC_SetDate(RTC_Format_BIN, &dateStruct);
RTC_SetTime(RTC_Format_BIN, &timeStruct); RTC_SetTime(RTC_Format_BIN, &timeStruct);
PWR_BackupAccessCmd(DISABLE); // Disable access to RTC PWR_BackupAccessCmd(DISABLE); // Disable access to RTC
} }

102
libraries/mbed/targets/hal/TARGET_STM/TARGET_NUCLEO_F302R8/serial_api.c
View File

@ -71,7 +71,7 @@ serial_t stdio_uart;
static void init_usart(serial_t *obj) { static void init_usart(serial_t *obj) {
USART_TypeDef *usart = (USART_TypeDef *)(obj->uart); USART_TypeDef *usart = (USART_TypeDef *)(obj->uart);
USART_InitTypeDef USART_InitStructure; USART_InitTypeDef USART_InitStructure;
USART_Cmd(usart, DISABLE); USART_Cmd(usart, DISABLE);
USART_InitStructure.USART_BaudRate = obj->baudrate; USART_InitStructure.USART_BaudRate = obj->baudrate;
@ -81,15 +81,15 @@ static void init_usart(serial_t *obj) {
USART_InitStructure.USART_HardwareFlowControl = USART_HardwareFlowControl_None; USART_InitStructure.USART_HardwareFlowControl = USART_HardwareFlowControl_None;
USART_InitStructure.USART_Mode = USART_Mode_Rx | USART_Mode_Tx; USART_InitStructure.USART_Mode = USART_Mode_Rx | USART_Mode_Tx;
USART_Init(usart, &USART_InitStructure); USART_Init(usart, &USART_InitStructure);
USART_Cmd(usart, ENABLE); USART_Cmd(usart, ENABLE);
} }
void serial_init(serial_t *obj, PinName tx, PinName rx) { void serial_init(serial_t *obj, PinName tx, PinName rx) {
// Determine the UART to use // Determine the UART to use
UARTName uart_tx = (UARTName)pinmap_peripheral(tx, PinMap_UART_TX); UARTName uart_tx = (UARTName)pinmap_peripheral(tx, PinMap_UART_TX);
UARTName uart_rx = (UARTName)pinmap_peripheral(rx, PinMap_UART_RX); UARTName uart_rx = (UARTName)pinmap_peripheral(rx, PinMap_UART_RX);
// Get the peripheral name from the pin and assign it to the object // Get the peripheral name from the pin and assign it to the object
obj->uart = (UARTName)pinmap_merge(uart_tx, uart_rx); obj->uart = (UARTName)pinmap_merge(uart_tx, uart_rx);
@ -99,15 +99,15 @@ void serial_init(serial_t *obj, PinName tx, PinName rx) {
// Enable USART clock // Enable USART clock
if (obj->uart == UART_1) { if (obj->uart == UART_1) {
RCC_APB2PeriphClockCmd(RCC_APB2Periph_USART1, ENABLE); RCC_APB2PeriphClockCmd(RCC_APB2Periph_USART1, ENABLE);
} }
if (obj->uart == UART_2) { if (obj->uart == UART_2) {
RCC_APB1PeriphClockCmd(RCC_APB1Periph_USART2, ENABLE); RCC_APB1PeriphClockCmd(RCC_APB1Periph_USART2, ENABLE);
} }
if (obj->uart == UART_3) { if (obj->uart == UART_3) {
RCC_APB1PeriphClockCmd(RCC_APB1Periph_USART3, ENABLE); RCC_APB1PeriphClockCmd(RCC_APB1Periph_USART3, ENABLE);
} }
// Configure the UART pins // Configure the UART pins
pinmap_pinout(tx, PinMap_UART_TX); pinmap_pinout(tx, PinMap_UART_TX);
pinmap_pinout(rx, PinMap_UART_RX); pinmap_pinout(rx, PinMap_UART_RX);
@ -118,7 +118,7 @@ void serial_init(serial_t *obj, PinName tx, PinName rx) {
obj->baudrate = 9600; obj->baudrate = 9600;
obj->databits = USART_WordLength_8b; obj->databits = USART_WordLength_8b;
obj->stopbits = USART_StopBits_1; obj->stopbits = USART_StopBits_1;
obj->parity = USART_Parity_No; obj->parity = USART_Parity_No;
init_usart(obj); init_usart(obj);
@ -126,13 +126,13 @@ void serial_init(serial_t *obj, PinName tx, PinName rx) {
if (obj->uart == UART_1) obj->index = 0; if (obj->uart == UART_1) obj->index = 0;
if (obj->uart == UART_2) obj->index = 1; if (obj->uart == UART_2) obj->index = 1;
if (obj->uart == UART_3) obj->index = 2; if (obj->uart == UART_3) obj->index = 2;
// For stdio management // For stdio management
if (obj->uart == STDIO_UART) { if (obj->uart == STDIO_UART) {
stdio_uart_inited = 1; stdio_uart_inited = 1;
memcpy(&stdio_uart, obj, sizeof(serial_t)); memcpy(&stdio_uart, obj, sizeof(serial_t));
} }
} }
void serial_free(serial_t *obj) { void serial_free(serial_t *obj) {
@ -147,29 +147,27 @@ void serial_baud(serial_t *obj, int baudrate) {
void serial_format(serial_t *obj, int data_bits, SerialParity parity, int stop_bits) { void serial_format(serial_t *obj, int data_bits, SerialParity parity, int stop_bits) {
if (data_bits == 8) { if (data_bits == 8) {
obj->databits = USART_WordLength_8b; obj->databits = USART_WordLength_8b;
} } else {
else {
obj->databits = USART_WordLength_9b; obj->databits = USART_WordLength_9b;
} }
switch (parity) { switch (parity) {
case ParityOdd: case ParityOdd:
case ParityForced0: case ParityForced0:
obj->parity = USART_Parity_Odd; obj->parity = USART_Parity_Odd;
break; break;
case ParityEven: case ParityEven:
case ParityForced1: case ParityForced1:
obj->parity = USART_Parity_Even; obj->parity = USART_Parity_Even;
break; break;
default: // ParityNone default: // ParityNone
obj->parity = USART_Parity_No; obj->parity = USART_Parity_No;
break; break;
} }
if (stop_bits == 2) { if (stop_bits == 2) {
obj->stopbits = USART_StopBits_2; obj->stopbits = USART_StopBits_2;
} } else {
else {
obj->stopbits = USART_StopBits_1; obj->stopbits = USART_StopBits_1;
} }
@ -194,9 +192,15 @@ static void uart_irq(USART_TypeDef* usart, int id) {
} }
} }
static void uart1_irq(void) {uart_irq((USART_TypeDef*)UART_1, 0);} static void uart1_irq(void) {
static void uart2_irq(void) {uart_irq((USART_TypeDef*)UART_2, 1);} uart_irq((USART_TypeDef*)UART_1, 0);
static void uart3_irq(void) {uart_irq((USART_TypeDef*)UART_3, 2);} }
static void uart2_irq(void) {
uart_irq((USART_TypeDef*)UART_2, 1);
}
static void uart3_irq(void) {
uart_irq((USART_TypeDef*)UART_3, 2);
}
void serial_irq_handler(serial_t *obj, uart_irq_handler handler, uint32_t id) { void serial_irq_handler(serial_t *obj, uart_irq_handler handler, uint32_t id) {
irq_handler = handler; irq_handler = handler;
@ -209,50 +213,48 @@ void serial_irq_set(serial_t *obj, SerialIrq irq, uint32_t enable) {
USART_TypeDef *usart = (USART_TypeDef *)(obj->uart); USART_TypeDef *usart = (USART_TypeDef *)(obj->uart);
if (obj->uart == UART_1) { if (obj->uart == UART_1) {
irq_n = USART1_IRQn; irq_n = USART1_IRQn;
vector = (uint32_t)&uart1_irq; vector = (uint32_t)&uart1_irq;
} }
if (obj->uart == UART_2) { if (obj->uart == UART_2) {
irq_n = USART2_IRQn; irq_n = USART2_IRQn;
vector = (uint32_t)&uart2_irq; vector = (uint32_t)&uart2_irq;
} }
if (obj->uart == UART_3) { if (obj->uart == UART_3) {
irq_n = USART3_IRQn; irq_n = USART3_IRQn;
vector = (uint32_t)&uart3_irq; vector = (uint32_t)&uart3_irq;
} }
if (enable) { if (enable) {
if (irq == RxIrq) { if (irq == RxIrq) {
USART_ITConfig(usart, USART_IT_RXNE, ENABLE); USART_ITConfig(usart, USART_IT_RXNE, ENABLE);
} } else { // TxIrq
else { // TxIrq
USART_ITConfig(usart, USART_IT_TC, ENABLE); USART_ITConfig(usart, USART_IT_TC, ENABLE);
} }
NVIC_SetVector(irq_n, vector); NVIC_SetVector(irq_n, vector);
NVIC_EnableIRQ(irq_n); NVIC_EnableIRQ(irq_n);
} else { // disable } else { // disable
int all_disabled = 0; int all_disabled = 0;
if (irq == RxIrq) { if (irq == RxIrq) {
USART_ITConfig(usart, USART_IT_RXNE, DISABLE); USART_ITConfig(usart, USART_IT_RXNE, DISABLE);
// Check if TxIrq is disabled too // Check if TxIrq is disabled too
if ((usart->CR1 & USART_CR1_TXEIE) == 0) all_disabled = 1; if ((usart->CR1 & USART_CR1_TXEIE) == 0) all_disabled = 1;
} } else { // TxIrq
else { // TxIrq
USART_ITConfig(usart, USART_IT_TXE, DISABLE); USART_ITConfig(usart, USART_IT_TXE, DISABLE);
// Check if RxIrq is disabled too // Check if RxIrq is disabled too
if ((usart->CR1 & USART_CR1_RXNEIE) == 0) all_disabled = 1; if ((usart->CR1 & USART_CR1_RXNEIE) == 0) all_disabled = 1;
} }
if (all_disabled) NVIC_DisableIRQ(irq_n); if (all_disabled) NVIC_DisableIRQ(irq_n);
} }
} }
/****************************************************************************** /******************************************************************************

12
libraries/mbed/targets/hal/TARGET_STM/TARGET_NUCLEO_F302R8/sleep.c
View File

@ -34,24 +34,22 @@
extern void SetSysClock(void); extern void SetSysClock(void);
// MCU SLEEP mode // MCU SLEEP mode
void sleep(void) void sleep(void) {
{
// Enable PWR clock // Enable PWR clock
RCC_APB1PeriphClockCmd(RCC_APB1Periph_PWR, ENABLE); RCC_APB1PeriphClockCmd(RCC_APB1Periph_PWR, ENABLE);
// Request to enter SLEEP mode // Request to enter SLEEP mode
PWR_EnterSleepMode(PWR_SLEEPEntry_WFI); PWR_EnterSleepMode(PWR_SLEEPEntry_WFI);
} }
// MCU STOP mode // MCU STOP mode
void deepsleep(void) void deepsleep(void) {
{
// Enable PWR clock // Enable PWR clock
RCC_APB1PeriphClockCmd(RCC_APB1Periph_PWR, ENABLE); RCC_APB1PeriphClockCmd(RCC_APB1Periph_PWR, ENABLE);
// Enter Stop Mode // Enter Stop Mode
PWR_EnterSTOPMode(PWR_Regulator_LowPower, PWR_STOPEntry_WFI); PWR_EnterSTOPMode(PWR_Regulator_LowPower, PWR_STOPEntry_WFI);
// After wake-up from STOP reconfigure the PLL // After wake-up from STOP reconfigure the PLL
SetSysClock(); SetSysClock();
} }

142
libraries/mbed/targets/hal/TARGET_STM/TARGET_NUCLEO_F302R8/spi_api.c
View File

@ -74,19 +74,19 @@ static void init_spi(spi_t *obj) {
SPI_Cmd(spi, DISABLE); SPI_Cmd(spi, DISABLE);
SPI_InitStructure.SPI_Mode = obj->mode; SPI_InitStructure.SPI_Mode = obj->mode;
SPI_InitStructure.SPI_NSS = obj->nss; SPI_InitStructure.SPI_NSS = obj->nss;
SPI_InitStructure.SPI_Direction = SPI_Direction_2Lines_FullDuplex; SPI_InitStructure.SPI_Direction = SPI_Direction_2Lines_FullDuplex;
SPI_InitStructure.SPI_DataSize = obj->bits; SPI_InitStructure.SPI_DataSize = obj->bits;
SPI_InitStructure.SPI_CPOL = obj->cpol; SPI_InitStructure.SPI_CPOL = obj->cpol;
SPI_InitStructure.SPI_CPHA = obj->cpha; SPI_InitStructure.SPI_CPHA = obj->cpha;
SPI_InitStructure.SPI_BaudRatePrescaler = obj->br_presc; SPI_InitStructure.SPI_BaudRatePrescaler = obj->br_presc;
SPI_InitStructure.SPI_FirstBit = SPI_FirstBit_MSB; SPI_InitStructure.SPI_FirstBit = SPI_FirstBit_MSB;
SPI_InitStructure.SPI_CRCPolynomial = 7; SPI_InitStructure.SPI_CRCPolynomial = 7;
SPI_Init(spi, &SPI_InitStructure); SPI_Init(spi, &SPI_InitStructure);
SPI_RxFIFOThresholdConfig(spi, SPI_RxFIFOThreshold_QF); SPI_RxFIFOThresholdConfig(spi, SPI_RxFIFOThreshold_QF);
SPI_Cmd(spi, ENABLE); SPI_Cmd(spi, ENABLE);
} }
@ -96,40 +96,39 @@ void spi_init(spi_t *obj, PinName mosi, PinName miso, PinName sclk, PinName ssel
SPIName spi_miso = (SPIName)pinmap_peripheral(miso, PinMap_SPI_MISO); SPIName spi_miso = (SPIName)pinmap_peripheral(miso, PinMap_SPI_MISO);
SPIName spi_sclk = (SPIName)pinmap_peripheral(sclk, PinMap_SPI_SCLK); SPIName spi_sclk = (SPIName)pinmap_peripheral(sclk, PinMap_SPI_SCLK);
SPIName spi_ssel = (SPIName)pinmap_peripheral(ssel, PinMap_SPI_SSEL); SPIName spi_ssel = (SPIName)pinmap_peripheral(ssel, PinMap_SPI_SSEL);
SPIName spi_data = (SPIName)pinmap_merge(spi_mosi, spi_miso); SPIName spi_data = (SPIName)pinmap_merge(spi_mosi, spi_miso);
SPIName spi_cntl = (SPIName)pinmap_merge(spi_sclk, spi_ssel); SPIName spi_cntl = (SPIName)pinmap_merge(spi_sclk, spi_ssel);
obj->spi = (SPIName)pinmap_merge(spi_data, spi_cntl); obj->spi = (SPIName)pinmap_merge(spi_data, spi_cntl);
if (obj->spi == (SPIName)NC) { if (obj->spi == (SPIName)NC) {
error("SPI pinout mapping failed"); error("SPI pinout mapping failed");
} }
// Enable SPI clock // Enable SPI clock
if (obj->spi == SPI_2) { if (obj->spi == SPI_2) {
RCC_APB1PeriphClockCmd(RCC_APB1Periph_SPI2, ENABLE); RCC_APB1PeriphClockCmd(RCC_APB1Periph_SPI2, ENABLE);
} }
if (obj->spi == SPI_3) { if (obj->spi == SPI_3) {
RCC_APB1PeriphClockCmd(RCC_APB1Periph_SPI3, ENABLE); RCC_APB1PeriphClockCmd(RCC_APB1Periph_SPI3, ENABLE);
} }
// Configure the SPI pins // Configure the SPI pins
pinmap_pinout(mosi, PinMap_SPI_MOSI); pinmap_pinout(mosi, PinMap_SPI_MOSI);
pinmap_pinout(miso, PinMap_SPI_MISO); pinmap_pinout(miso, PinMap_SPI_MISO);
pinmap_pinout(sclk, PinMap_SPI_SCLK); pinmap_pinout(sclk, PinMap_SPI_SCLK);
// Save new values // Save new values
obj->bits = SPI_DataSize_8b; obj->bits = SPI_DataSize_8b;
obj->cpol = SPI_CPOL_Low; obj->cpol = SPI_CPOL_Low;
obj->cpha = SPI_CPHA_1Edge; obj->cpha = SPI_CPHA_1Edge;
obj->br_presc = SPI_BaudRatePrescaler_256; obj->br_presc = SPI_BaudRatePrescaler_256;
if (ssel == NC) { // Master if (ssel == NC) { // Master
obj->mode = SPI_Mode_Master; obj->mode = SPI_Mode_Master;
obj->nss = SPI_NSS_Soft; obj->nss = SPI_NSS_Soft;
} } else { // Slave
else { // Slave
pinmap_pinout(ssel, PinMap_SPI_SSEL); pinmap_pinout(ssel, PinMap_SPI_SSEL);
obj->mode = SPI_Mode_Slave; obj->mode = SPI_Mode_Slave;
obj->nss = SPI_NSS_Soft; obj->nss = SPI_NSS_Soft;
@ -143,71 +142,62 @@ void spi_free(spi_t *obj) {
SPI_I2S_DeInit(spi); SPI_I2S_DeInit(spi);
} }
void spi_format(spi_t *obj, int bits, int mode, int slave) { void spi_format(spi_t *obj, int bits, int mode, int slave) {
// Save new values // Save new values
if (bits == 8) { if (bits == 8) {
obj->bits = SPI_DataSize_8b; obj->bits = SPI_DataSize_8b;
} } else {
else {
obj->bits = SPI_DataSize_16b; obj->bits = SPI_DataSize_16b;
} }
switch (mode) { switch (mode) {
case 0: case 0:
obj->cpol = SPI_CPOL_Low; obj->cpol = SPI_CPOL_Low;
obj->cpha = SPI_CPHA_1Edge; obj->cpha = SPI_CPHA_1Edge;
break; break;
case 1: case 1:
obj->cpol = SPI_CPOL_Low; obj->cpol = SPI_CPOL_Low;
obj->cpha = SPI_CPHA_2Edge; obj->cpha = SPI_CPHA_2Edge;
break; break;
case 2: case 2:
obj->cpol = SPI_CPOL_High; obj->cpol = SPI_CPOL_High;
obj->cpha = SPI_CPHA_1Edge; obj->cpha = SPI_CPHA_1Edge;
break; break;
default: default:
obj->cpol = SPI_CPOL_High; obj->cpol = SPI_CPOL_High;
obj->cpha = SPI_CPHA_2Edge; obj->cpha = SPI_CPHA_2Edge;
break; break;
} }
if (slave == 0) { if (slave == 0) {
obj->mode = SPI_Mode_Master; obj->mode = SPI_Mode_Master;
obj->nss = SPI_NSS_Soft; obj->nss = SPI_NSS_Soft;
} } else {
else {
obj->mode = SPI_Mode_Slave; obj->mode = SPI_Mode_Slave;
obj->nss = SPI_NSS_Hard; obj->nss = SPI_NSS_Hard;
} }
init_spi(obj); init_spi(obj);
} }
void spi_frequency(spi_t *obj, int hz) { void spi_frequency(spi_t *obj, int hz) {
// Note: The frequencies are obtained with SPI2 clock = 32 MHz (APB1 clock) // Values depend of PCLK1: 32 MHz if HSI is used, 36 MHz if HSE is used
if (hz < 250000) { if (hz < 250000) {
obj->br_presc = SPI_BaudRatePrescaler_256; // 125 kHz obj->br_presc = SPI_BaudRatePrescaler_256; // 125 kHz - 141 kHz
} } else if ((hz >= 250000) && (hz < 500000)) {
else if ((hz >= 250000) && (hz < 500000)) { obj->br_presc = SPI_BaudRatePrescaler_128; // 250 kHz - 280 kHz
obj->br_presc = SPI_BaudRatePrescaler_128; // 250 kHz } else if ((hz >= 500000) && (hz < 1000000)) {
} obj->br_presc = SPI_BaudRatePrescaler_64; // 500 kHz - 560 kHz
else if ((hz >= 500000) && (hz < 1000000)) { } else if ((hz >= 1000000) && (hz < 2000000)) {
obj->br_presc = SPI_BaudRatePrescaler_64; // 500 kHz obj->br_presc = SPI_BaudRatePrescaler_32; // 1 MHz - 1.13 MHz
} } else if ((hz >= 2000000) && (hz < 4000000)) {
else if ((hz >= 1000000) && (hz < 2000000)) { obj->br_presc = SPI_BaudRatePrescaler_16; // 2 MHz - 2.25 MHz
obj->br_presc = SPI_BaudRatePrescaler_32; // 1 MHz } else if ((hz >= 4000000) && (hz < 8000000)) {
} obj->br_presc = SPI_BaudRatePrescaler_8; // 4 MHz - 4.5 MHz
else if ((hz >= 2000000) && (hz < 4000000)) { } else if ((hz >= 8000000) && (hz < 16000000)) {
obj->br_presc = SPI_BaudRatePrescaler_16; // 2 MHz obj->br_presc = SPI_BaudRatePrescaler_4; // 8 MHz - 9 MHz
} } else { // >= 16000000
else if ((hz >= 4000000) && (hz < 8000000)) { obj->br_presc = SPI_BaudRatePrescaler_2; // 16 MHz - 18 MHz
obj->br_presc = SPI_BaudRatePrescaler_8; // 4 MHz
}
else if ((hz >= 8000000) && (hz < 16000000)) {
obj->br_presc = SPI_BaudRatePrescaler_4; // 8 MHz
}
else { // >= 16000000
obj->br_presc = SPI_BaudRatePrescaler_2; // 16 MHz
} }
init_spi(obj); init_spi(obj);
} }
@ -217,7 +207,7 @@ static inline int ssp_readable(spi_t *obj) {
SPI_TypeDef *spi = (SPI_TypeDef *)(obj->spi); SPI_TypeDef *spi = (SPI_TypeDef *)(obj->spi);
// Check if data is received // Check if data is received
status = ((SPI_I2S_GetFlagStatus(spi, SPI_I2S_FLAG_RXNE) != RESET) ? 1 : 0); status = ((SPI_I2S_GetFlagStatus(spi, SPI_I2S_FLAG_RXNE) != RESET) ? 1 : 0);
return status; return status;
} }
static inline int ssp_writeable(spi_t *obj) { static inline int ssp_writeable(spi_t *obj) {
@ -229,23 +219,21 @@ static inline int ssp_writeable(spi_t *obj) {
} }
static inline void ssp_write(spi_t *obj, int value) { static inline void ssp_write(spi_t *obj, int value) {
SPI_TypeDef *spi = (SPI_TypeDef *)(obj->spi); SPI_TypeDef *spi = (SPI_TypeDef *)(obj->spi);
while (!ssp_writeable(obj)); while (!ssp_writeable(obj));
if (obj->bits == SPI_DataSize_8b) { if (obj->bits == SPI_DataSize_8b) {
SPI_SendData8(spi, (uint8_t)value); SPI_SendData8(spi, (uint8_t)value);
} } else {
else {
SPI_I2S_SendData16(spi, (uint16_t)value); SPI_I2S_SendData16(spi, (uint16_t)value);
} }
} }
static inline int ssp_read(spi_t *obj) { static inline int ssp_read(spi_t *obj) {
SPI_TypeDef *spi = (SPI_TypeDef *)(obj->spi); SPI_TypeDef *spi = (SPI_TypeDef *)(obj->spi);
while (!ssp_readable(obj)); while (!ssp_readable(obj));
if (obj->bits == SPI_DataSize_8b) { if (obj->bits == SPI_DataSize_8b) {
return (int)SPI_ReceiveData8(spi); return (int)SPI_ReceiveData8(spi);
} } else {
else {
return (int)SPI_I2S_ReceiveData16(spi); return (int)SPI_I2S_ReceiveData16(spi);
} }
} }
@ -270,19 +258,17 @@ int spi_slave_read(spi_t *obj) {
SPI_TypeDef *spi = (SPI_TypeDef *)(obj->spi); SPI_TypeDef *spi = (SPI_TypeDef *)(obj->spi);
if (obj->bits == SPI_DataSize_8b) { if (obj->bits == SPI_DataSize_8b) {
return (int)SPI_ReceiveData8(spi); return (int)SPI_ReceiveData8(spi);
} } else {
else {
return (int)SPI_I2S_ReceiveData16(spi); return (int)SPI_I2S_ReceiveData16(spi);
} }
} }
void spi_slave_write(spi_t *obj, int value) { void spi_slave_write(spi_t *obj, int value) {
SPI_TypeDef *spi = (SPI_TypeDef *)(obj->spi); SPI_TypeDef *spi = (SPI_TypeDef *)(obj->spi);
while (!ssp_writeable(obj)); while (!ssp_writeable(obj));
if (obj->bits == SPI_DataSize_8b) { if (obj->bits == SPI_DataSize_8b) {
SPI_SendData8(spi, (uint8_t)value); SPI_SendData8(spi, (uint8_t)value);
} } else {
else {
SPI_I2S_SendData16(spi, (uint16_t)value); SPI_I2S_SendData16(spi, (uint16_t)value);
} }
} }

16
libraries/mbed/targets/hal/TARGET_STM/TARGET_NUCLEO_F302R8/us_ticker.c
View File

@ -38,24 +38,24 @@ static int us_ticker_inited = 0;
void us_ticker_init(void) { void us_ticker_init(void) {
TIM_TimeBaseInitTypeDef TIM_TimeBaseStructure; TIM_TimeBaseInitTypeDef TIM_TimeBaseStructure;
if (us_ticker_inited) return; if (us_ticker_inited) return;
us_ticker_inited = 1; us_ticker_inited = 1;
// Enable timer clock // Enable timer clock
TIM_MST_RCC; TIM_MST_RCC;
// Configure time base // Configure time base
TIM_TimeBaseStructInit(&TIM_TimeBaseStructure); TIM_TimeBaseStructInit(&TIM_TimeBaseStructure);
TIM_TimeBaseStructure.TIM_Period = 0xFFFFFFFF; TIM_TimeBaseStructure.TIM_Period = 0xFFFFFFFF;
TIM_TimeBaseStructure.TIM_Prescaler = (uint16_t)(SystemCoreClock / 1000000) - 1; // 1 µs tick TIM_TimeBaseStructure.TIM_Prescaler = (uint16_t)(SystemCoreClock / 1000000) - 1; // 1 µs tick
TIM_TimeBaseStructure.TIM_ClockDivision = 0; TIM_TimeBaseStructure.TIM_ClockDivision = 0;
TIM_TimeBaseStructure.TIM_CounterMode = TIM_CounterMode_Up; TIM_TimeBaseStructure.TIM_CounterMode = TIM_CounterMode_Up;
TIM_TimeBaseInit(TIM_MST, &TIM_TimeBaseStructure); TIM_TimeBaseInit(TIM_MST, &TIM_TimeBaseStructure);
NVIC_SetVector(TIM_MST_IRQ, (uint32_t)us_ticker_irq_handler); NVIC_SetVector(TIM_MST_IRQ, (uint32_t)us_ticker_irq_handler);
NVIC_EnableIRQ(TIM_MST_IRQ); NVIC_EnableIRQ(TIM_MST_IRQ);
// Enable timer // Enable timer
TIM_Cmd(TIM_MST, ENABLE); TIM_Cmd(TIM_MST, ENABLE);
} }