diff --git a/libraries/mbed/targets/hal/TARGET_STM/TARGET_NUCLEO_F334R8/PeripheralNames.h b/libraries/mbed/targets/hal/TARGET_STM/TARGET_NUCLEO_F334R8/PeripheralNames.h new file mode 100644 index 0000000000..fc0bd7033c --- /dev/null +++ b/libraries/mbed/targets/hal/TARGET_STM/TARGET_NUCLEO_F334R8/PeripheralNames.h @@ -0,0 +1,80 @@ +/* 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)ADC2_BASE, +} ADCName; + +typedef enum { + DAC_1 = (int)DAC1_BASE, + DAC_2 = (int)DAC2_BASE +} DACName; + +typedef enum { + UART_1 = (int)USART1_BASE, + UART_2 = (int)USART2_BASE, + UART_3 = (int)USART3_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 +} SPIName; + +typedef enum { + I2C_1 = (int)I2C1_BASE +} I2CName; + +typedef enum { + PWM_1 = (int)TIM1_BASE, + PWM_2 = (int)TIM2_BASE, + PWM_3 = (int)TIM3_BASE, + PWM_15 = (int)TIM15_BASE, + PWM_16 = (int)TIM16_BASE, + PWM_17 = (int)TIM17_BASE +} PWMName; + +#ifdef __cplusplus +} +#endif + +#endif diff --git a/libraries/mbed/targets/hal/TARGET_STM/TARGET_NUCLEO_F334R8/PinNames.h b/libraries/mbed/targets/hal/TARGET_STM/TARGET_NUCLEO_F334R8/PinNames.h new file mode 100644 index 0000000000..a4b7478af4 --- /dev/null +++ b/libraries/mbed/targets/hal/TARGET_STM/TARGET_NUCLEO_F334R8/PinNames.h @@ -0,0 +1,182 @@ +/* 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 + +// See stm32f4xx_hal_gpio.h and stm32f4xx_hal_gpio_ex.h for values of MODE, PUPD and AFNUM +#define STM_PIN_DATA(MODE, PUPD, AFNUM) ((int)(((AFNUM) << 7) | ((PUPD) << 4) | ((MODE) << 0))) +#define STM_PIN_MODE(X) (((X) >> 0) & 0x0F) +#define STM_PIN_PUPD(X) (((X) >> 4) & 0x07) +#define STM_PIN_AFNUM(X) (((X) >> 7) & 0x0F) +#define STM_MODE_INPUT (0) +#define STM_MODE_OUTPUT_PP (1) +#define STM_MODE_OUTPUT_OD (2) +#define STM_MODE_AF_PP (3) +#define STM_MODE_AF_OD (4) +#define STM_MODE_ANALOG (5) +#define STM_MODE_IT_RISING (6) +#define STM_MODE_IT_FALLING (7) +#define STM_MODE_IT_RISING_FALLING (8) +#define STM_MODE_EVT_RISING (9) +#define STM_MODE_EVT_FALLING (10) +#define STM_MODE_EVT_RISING_FALLING (11) + +// 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, + + // Arduino connector namings + A0 = PA_0, + A1 = PA_1, + A2 = PA_4, + A3 = PB_0, + A4 = PC_1, + A5 = PC_0, + D0 = PA_3, + D1 = PA_2, + D2 = PA_10, + D3 = PB_3, + D4 = PB_5, + D5 = PB_4, + D6 = PB_10, + D7 = PA_8, + D8 = PA_9, + D9 = PC_7, + D10 = PB_6, + D11 = PA_7, + D12 = PA_6, + D13 = PA_5, + D14 = PB_9, + D15 = PB_8, + + // Generic signals namings + LED1 = PA_5, + LED2 = PA_5, + LED3 = PA_5, + LED4 = PA_5, + USER_BUTTON = PC_13, + SERIAL_TX = PA_2, + SERIAL_RX = PA_3, + 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_4, + + // Not connected + NC = (int)0xFFFFFFFF +} PinName; + +typedef enum { + PullNone = 0, + PullUp = 1, + PullDown = 2, + OpenDrain = 3, + PullDefault = PullNone +} PinMode; + +#ifdef __cplusplus +} +#endif + +#endif diff --git a/libraries/mbed/targets/hal/TARGET_STM/TARGET_NUCLEO_F334R8/PortNames.h b/libraries/mbed/targets/hal/TARGET_STM/TARGET_NUCLEO_F334R8/PortNames.h new file mode 100644 index 0000000000..b1d7307ed0 --- /dev/null +++ b/libraries/mbed/targets/hal/TARGET_STM/TARGET_NUCLEO_F334R8/PortNames.h @@ -0,0 +1,48 @@ +/* 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 diff --git a/libraries/mbed/targets/hal/TARGET_STM/TARGET_NUCLEO_F334R8/analogin_api.c b/libraries/mbed/targets/hal/TARGET_STM/TARGET_NUCLEO_F334R8/analogin_api.c new file mode 100644 index 0000000000..1e3de19f5e --- /dev/null +++ b/libraries/mbed/targets/hal/TARGET_STM/TARGET_NUCLEO_F334R8/analogin_api.c @@ -0,0 +1,210 @@ +/* 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 "mbed_assert.h" +#include "analogin_api.h" + +#if DEVICE_ANALOGIN + +#include "wait_api.h" +#include "cmsis.h" +#include "pinmap.h" + +static const PinMap PinMap_ADC[] = { + {PA_0, ADC_1, STM_PIN_DATA(STM_MODE_ANALOG, GPIO_NOPULL, 0)}, // ADC1_IN1 - ARDUINO + {PA_1, ADC_1, STM_PIN_DATA(STM_MODE_ANALOG, GPIO_NOPULL, 0)}, // ADC1_IN2 - ARDUINO + {PA_2, ADC_1, STM_PIN_DATA(STM_MODE_ANALOG, GPIO_NOPULL, 0)}, // ADC1_IN3 + {PA_3, ADC_1, STM_PIN_DATA(STM_MODE_ANALOG, GPIO_NOPULL, 0)}, // ADC1_IN4 + {PA_4, ADC_2, STM_PIN_DATA(STM_MODE_ANALOG, GPIO_NOPULL, 0)}, // ADC2_IN1 - ARDUINO + {PA_5, ADC_2, STM_PIN_DATA(STM_MODE_ANALOG, GPIO_NOPULL, 0)}, // ADC2_IN2 + {PA_6, ADC_2, STM_PIN_DATA(STM_MODE_ANALOG, GPIO_NOPULL, 0)}, // ADC2_IN3 + {PA_7, ADC_2, STM_PIN_DATA(STM_MODE_ANALOG, GPIO_NOPULL, 0)}, // ADC2_IN4 + + {PB_0, ADC_1, STM_PIN_DATA(STM_MODE_ANALOG, GPIO_NOPULL, 0)}, // ADC1_IN11 - ARDUINO + {PB_1, ADC_1, STM_PIN_DATA(STM_MODE_ANALOG, GPIO_NOPULL, 0)}, // ADC1_IN12 + {PB_2, ADC_2, STM_PIN_DATA(STM_MODE_ANALOG, GPIO_NOPULL, 0)}, // ADC2_IN12 + {PB_12, ADC_2, STM_PIN_DATA(STM_MODE_ANALOG, GPIO_NOPULL, 0)}, // ADC2_IN13 + {PB_13, ADC_1, STM_PIN_DATA(STM_MODE_ANALOG, GPIO_NOPULL, 0)}, // ADC1_IN13 + {PB_14, ADC_2, STM_PIN_DATA(STM_MODE_ANALOG, GPIO_NOPULL, 0)}, // ADC2_IN14 + {PB_15, ADC_2, STM_PIN_DATA(STM_MODE_ANALOG, GPIO_NOPULL, 0)}, // ADC2_IN15 + + {PC_0, ADC_1, STM_PIN_DATA(STM_MODE_ANALOG, GPIO_NOPULL, 0)}, // ADC1_IN6 - ARDUINO + {PC_1, ADC_1, STM_PIN_DATA(STM_MODE_ANALOG, GPIO_NOPULL, 0)}, // ADC1_IN7 - ARDUINO + {PC_2, ADC_1, STM_PIN_DATA(STM_MODE_ANALOG, GPIO_NOPULL, 0)}, // ADC1_IN8 + {PC_3, ADC_1, STM_PIN_DATA(STM_MODE_ANALOG, GPIO_NOPULL, 0)}, // ADC1_IN9 + {PC_4, ADC_2, STM_PIN_DATA(STM_MODE_ANALOG, GPIO_NOPULL, 0)}, // ADC2_IN5 + {PC_5, ADC_2, STM_PIN_DATA(STM_MODE_ANALOG, GPIO_NOPULL, 0)}, // ADC2_IN11 + {NC, NC, 0} +}; + +ADC_HandleTypeDef AdcHandle; + +int adc_inited = 0; + +void analogin_init(analogin_t *obj, PinName pin) +{ + // Get the peripheral name from the pin and assign it to the object + obj->adc = (ADCName)pinmap_peripheral(pin, PinMap_ADC); + MBED_ASSERT(obj->adc != (ADCName)NC); + + // 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; + + // Enable ADC clock + if (obj->adc == ADC_1) __ADC1_CLK_ENABLE(); + if (obj->adc == ADC_2) __ADC2_CLK_ENABLE(); + + // Configure ADC + AdcHandle.Instance = (ADC_TypeDef *)(obj->adc); + AdcHandle.Init.ClockPrescaler = ADC_CLOCKPRESCALER_PCLK_DIV2; + AdcHandle.Init.Resolution = ADC_RESOLUTION12b; + AdcHandle.Init.ScanConvMode = DISABLE; + AdcHandle.Init.ContinuousConvMode = DISABLE; + AdcHandle.Init.DiscontinuousConvMode = DISABLE; + AdcHandle.Init.NbrOfDiscConversion = 0; + AdcHandle.Init.ExternalTrigConvEdge = ADC_EXTERNALTRIGCONVEDGE_NONE; + AdcHandle.Init.ExternalTrigConv = ADC_EXTERNALTRIGCONV_T1_CC1; + AdcHandle.Init.DataAlign = ADC_DATAALIGN_RIGHT; + AdcHandle.Init.NbrOfConversion = 1; + AdcHandle.Init.DMAContinuousRequests = DISABLE; + AdcHandle.Init.EOCSelection = DISABLE; + HAL_ADC_Init(&AdcHandle); + } +} + +static inline uint16_t adc_read(analogin_t *obj) +{ + ADC_ChannelConfTypeDef sConfig; + + AdcHandle.Instance = (ADC_TypeDef *)(obj->adc); + + // Configure ADC channel + sConfig.Rank = 1; + sConfig.SamplingTime = ADC_SAMPLETIME_4CYCLES_5; + sConfig.SingleDiff = ADC_SINGLE_ENDED; + sConfig.OffsetNumber = ADC_OFFSET_NONE; + sConfig.Offset = 0; + + switch (obj->pin) { + case PA_0: + sConfig.Channel = ADC_CHANNEL_1; + break; + case PA_1: + sConfig.Channel = ADC_CHANNEL_2; + break; + case PA_2: + sConfig.Channel = ADC_CHANNEL_3; + break; + case PA_3: + sConfig.Channel = ADC_CHANNEL_4; + break; + case PA_4: + sConfig.Channel = ADC_CHANNEL_1; + break; + case PA_5: + sConfig.Channel = ADC_CHANNEL_2; + break; + case PA_6: + sConfig.Channel = ADC_CHANNEL_3; + break; + case PA_7: + sConfig.Channel = ADC_CHANNEL_4; + break; + case PB_0: + sConfig.Channel = ADC_CHANNEL_11; + break; + case PB_1: + sConfig.Channel = ADC_CHANNEL_12; + break; + case PB_2: + sConfig.Channel = ADC_CHANNEL_12; + break; + case PB_12: + sConfig.Channel = ADC_CHANNEL_13; + break; + case PB_13: + sConfig.Channel = ADC_CHANNEL_13; + break; + case PB_14: + sConfig.Channel = ADC_CHANNEL_14; + break; + case PB_15: + sConfig.Channel = ADC_CHANNEL_15; + break; + case PC_0: + sConfig.Channel = ADC_CHANNEL_6; + break; + case PC_1: + sConfig.Channel = ADC_CHANNEL_7; + break; + case PC_2: + sConfig.Channel = ADC_CHANNEL_8; + break; + case PC_3: + sConfig.Channel = ADC_CHANNEL_9; + break; + case PC_4: + sConfig.Channel = ADC_CHANNEL_5; + break; + case PC_5: + sConfig.Channel = ADC_CHANNEL_11; + break; + default: + return 0; + } + + HAL_ADC_ConfigChannel(&AdcHandle, &sConfig); + + HAL_ADC_Start(&AdcHandle); // Start conversion + + // Wait end of conversion and get value + if (HAL_ADC_PollForConversion(&AdcHandle, 10) == HAL_OK) { + return (HAL_ADC_GetValue(&AdcHandle)); + } else { + return 0; + } +} + +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 diff --git a/libraries/mbed/targets/hal/TARGET_STM/TARGET_NUCLEO_F334R8/analogout_api.c b/libraries/mbed/targets/hal/TARGET_STM/TARGET_NUCLEO_F334R8/analogout_api.c new file mode 100644 index 0000000000..5679a345e2 --- /dev/null +++ b/libraries/mbed/targets/hal/TARGET_STM/TARGET_NUCLEO_F334R8/analogout_api.c @@ -0,0 +1,174 @@ +/* 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 "mbed_assert.h" +#include "analogout_api.h" + +#if DEVICE_ANALOGOUT + +#include "cmsis.h" +#include "pinmap.h" +#include "error.h" + +#define DAC_RANGE (0xFFF) // 12 bits + +static const PinMap PinMap_DAC[] = { + {PA_4, DAC_1, STM_PIN_DATA(STM_MODE_ANALOG, GPIO_NOPULL, 0)}, // DAC1_OUT1 + {PA_5, DAC_1, STM_PIN_DATA(STM_MODE_ANALOG, GPIO_NOPULL, 0)}, // DAC1_OUT2 (Warning: LED1 is also on this pin) + {PA_6, DAC_2, STM_PIN_DATA(STM_MODE_ANALOG, GPIO_NOPULL, 0)}, // DAC2_OUT1 + {NC, NC, 0} +}; + +static DAC_HandleTypeDef DacHandle; + +// These variables are used for the "free" function +static int pa4_used = 0; +static int pa5_used = 0; + +void analogout_init(dac_t *obj, PinName pin) +{ + DAC_ChannelConfTypeDef sConfig; + + // Get the peripheral name (DAC_1, DAC_2...) from the pin and assign it to the object + obj->dac = (DACName)pinmap_peripheral(pin, PinMap_DAC); + MBED_ASSERT(obj->dac != (DACName)NC); + + // Configure GPIO + pinmap_pinout(pin, PinMap_DAC); + + // Save the pin for future use + obj->pin = pin; + + // Enable DAC clock + if (obj->dac == DAC_1) { + __DAC1_CLK_ENABLE(); + } + if (obj->dac == DAC_2) { + __DAC2_CLK_ENABLE(); + } + + // Configure DAC + DacHandle.Instance = (DAC_TypeDef *)(obj->dac); + + sConfig.DAC_Trigger = DAC_TRIGGER_NONE; + sConfig.DAC_OutputBuffer = DAC_OUTPUTBUFFER_DISABLE; + + if (pin == PA_4) { + HAL_DAC_ConfigChannel(&DacHandle, &sConfig, DAC_CHANNEL_1); + pa4_used = 1; + } + + if (pin == PA_5) { + HAL_DAC_ConfigChannel(&DacHandle, &sConfig, DAC_CHANNEL_2); + pa5_used = 1; + } + + if (pin == PA_6) { + HAL_DAC_ConfigChannel(&DacHandle, &sConfig, DAC_CHANNEL_1); + } + + analogout_write_u16(obj, 0); +} + +void analogout_free(dac_t *obj) +{ + // Reset DAC and disable clock + if (obj->pin == PA_4) pa4_used = 0; + if (obj->pin == PA_5) pa5_used = 0; + + if ((pa4_used == 0) && (pa5_used == 0)) { + __DAC1_FORCE_RESET(); + __DAC1_RELEASE_RESET(); + __DAC1_CLK_DISABLE(); + } + + if (obj->pin == PA_6) { + __DAC2_FORCE_RESET(); + __DAC2_RELEASE_RESET(); + __DAC2_CLK_DISABLE(); + } + + // Configure GPIO + pin_function(obj->pin, STM_PIN_DATA(STM_MODE_INPUT, GPIO_NOPULL, 0)); +} + +static inline void dac_write(dac_t *obj, uint16_t value) +{ + if ((obj->pin == PA_4) || (obj->pin == PA_6)) { + HAL_DAC_SetValue(&DacHandle, DAC_CHANNEL_1, DAC_ALIGN_12B_R, value); + HAL_DAC_Start(&DacHandle, DAC_CHANNEL_1); + } + + if (obj->pin == PA_5) { + HAL_DAC_SetValue(&DacHandle, DAC_CHANNEL_2, DAC_ALIGN_12B_R, value); + HAL_DAC_Start(&DacHandle, DAC_CHANNEL_2); + } +} + +static inline int dac_read(dac_t *obj) +{ + if ((obj->pin == PA_4) || (obj->pin == PA_6)) { + return (int)HAL_DAC_GetValue(&DacHandle, DAC_CHANNEL_1); + } else if (obj->pin == PA_5) { + return (int)HAL_DAC_GetValue(&DacHandle, DAC_CHANNEL_2); + } else { + return 0; + } +} + +void analogout_write(dac_t *obj, float value) +{ + if (value < 0.0f) { + dac_write(obj, 0); // Min value + } else if (value > 1.0f) { + dac_write(obj, (uint16_t)DAC_RANGE); // Max value + } else { + dac_write(obj, (uint16_t)(value * (float)DAC_RANGE)); + } +} + +void analogout_write_u16(dac_t *obj, uint16_t value) +{ + if (value > (uint16_t)DAC_RANGE) { + dac_write(obj, (uint16_t)DAC_RANGE); // Max value + } else { + dac_write(obj, value); + } +} + +float analogout_read(dac_t *obj) +{ + uint32_t value = dac_read(obj); + return (float)((float)value * (1.0f / (float)DAC_RANGE)); +} + +uint16_t analogout_read_u16(dac_t *obj) +{ + return (uint16_t)dac_read(obj); +} + +#endif // DEVICE_ANALOGOUT diff --git a/libraries/mbed/targets/hal/TARGET_STM/TARGET_NUCLEO_F334R8/device.h b/libraries/mbed/targets/hal/TARGET_STM/TARGET_NUCLEO_F334R8/device.h new file mode 100644 index 0000000000..fd151e3566 --- /dev/null +++ b/libraries/mbed/targets/hal/TARGET_STM/TARGET_NUCLEO_F334R8/device.h @@ -0,0 +1,70 @@ +/* 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 1 + +#define DEVICE_SERIAL 1 + +#define DEVICE_I2C 1 +#define DEVICE_I2CSLAVE 1 + +#define DEVICE_SPI 1 +#define DEVICE_SPISLAVE 1 + +#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 diff --git a/libraries/mbed/targets/hal/TARGET_STM/TARGET_NUCLEO_F334R8/gpio_api.c b/libraries/mbed/targets/hal/TARGET_STM/TARGET_NUCLEO_F334R8/gpio_api.c new file mode 100644 index 0000000000..3ba161b961 --- /dev/null +++ b/libraries/mbed/targets/hal/TARGET_STM/TARGET_NUCLEO_F334R8/gpio_api.c @@ -0,0 +1,79 @@ +/* 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 "mbed_assert.h" +#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) +{ + MBED_ASSERT(pin != (PinName)NC); + + pin_function(pin, STM_PIN_DATA(STM_MODE_INPUT, GPIO_NOPULL, 0)); + + return (uint32_t)(1 << ((uint32_t)pin & 0xF)); // Return the pin mask +} + +void gpio_init(gpio_t *obj, PinName pin) +{ + obj->pin = pin; + if (pin == (PinName)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->mask = gpio_set(pin); + obj->reg_in = &gpio->IDR; + obj->reg_set = &gpio->BSRRL; + obj->reg_clr = &gpio->BSRRH; +} + +void gpio_mode(gpio_t *obj, PinMode mode) +{ + pin_mode(obj->pin, mode); +} + +void gpio_dir(gpio_t *obj, PinDirection direction) +{ + MBED_ASSERT(obj->pin != (PinName)NC); + if (direction == PIN_OUTPUT) { + pin_function(obj->pin, STM_PIN_DATA(STM_MODE_OUTPUT_PP, GPIO_NOPULL, 0)); + } else { // PIN_INPUT + pin_function(obj->pin, STM_PIN_DATA(STM_MODE_INPUT, GPIO_NOPULL, 0)); + } +} diff --git a/libraries/mbed/targets/hal/TARGET_STM/TARGET_NUCLEO_F334R8/gpio_irq_api.c b/libraries/mbed/targets/hal/TARGET_STM/TARGET_NUCLEO_F334R8/gpio_irq_api.c new file mode 100644 index 0000000000..661b987c72 --- /dev/null +++ b/libraries/mbed/targets/hal/TARGET_STM/TARGET_NUCLEO_F334R8/gpio_irq_api.c @@ -0,0 +1,251 @@ +/* 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 +#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 (7) + +static uint32_t channel_ids[CHANNEL_NUM] = {0, 0, 0, 0, 0, 0, 0}; +static uint32_t channel_gpio[CHANNEL_NUM] = {0, 0, 0, 0, 0, 0, 0}; +static uint32_t channel_pin[CHANNEL_NUM] = {0, 0, 0, 0, 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 (__HAL_GPIO_EXTI_GET_FLAG(pin) != RESET) { + __HAL_GPIO_EXTI_CLEAR_FLAG(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 +// EXTI line 0 +static void gpio_irq0(void) +{ + handle_interrupt_in(0); +} +// EXTI line 1 +static void gpio_irq1(void) +{ + handle_interrupt_in(1); +} +// EXTI line 2 +static void gpio_irq2(void) +{ + handle_interrupt_in(2); +} +// EXTI line 3 +static void gpio_irq3(void) +{ + handle_interrupt_in(3); +} +// EXTI line 4 +static void gpio_irq4(void) +{ + handle_interrupt_in(4); +} +// EXTI lines 5 to 9 +static void gpio_irq5(void) +{ + handle_interrupt_in(5); +} +// EXTI lines 10 to 15 +static void gpio_irq6(void) +{ + handle_interrupt_in(6); +} + +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_index) { + case 0: + irq_n = EXTI0_IRQn; + vector = (uint32_t)&gpio_irq0; + irq_index = 0; + break; + case 1: + irq_n = EXTI1_IRQn; + vector = (uint32_t)&gpio_irq1; + irq_index = 1; + break; + case 2: + irq_n = EXTI2_TSC_IRQn; + vector = (uint32_t)&gpio_irq2; + irq_index = 2; + break; + case 3: + irq_n = EXTI3_IRQn; + vector = (uint32_t)&gpio_irq3; + irq_index = 3; + break; + case 4: + irq_n = EXTI4_IRQn; + vector = (uint32_t)&gpio_irq4; + irq_index = 4; + break; + case 5: + case 6: + case 7: + case 8: + case 9: + irq_n = EXTI9_5_IRQn; + vector = (uint32_t)&gpio_irq5; + irq_index = 5; + break; + case 10: + case 11: + case 12: + case 13: + case 14: + case 15: + irq_n = EXTI15_10_IRQn; + vector = (uint32_t)&gpio_irq6; + irq_index = 6; + break; + default: + error("InterruptIn error: pin not supported.\n"); + return -1; + } + + // Enable GPIO clock + uint32_t gpio_add = Set_GPIO_Clock(port_index); + + // Configure GPIO + pin_function(pin, STM_PIN_DATA(STM_MODE_IT_FALLING, GPIO_NOPULL, 0)); + + // Enable EXTI interrupt + 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; + obj->pin = pin; + 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 + pin_function(obj->pin, STM_PIN_DATA(STM_MODE_INPUT, GPIO_NOPULL, 0)); + obj->event = EDGE_NONE; +} + +void gpio_irq_set(gpio_irq_t *obj, gpio_irq_event event, uint32_t enable) +{ + uint32_t mode = STM_MODE_INPUT; + uint32_t pull = GPIO_NOPULL; + + if (enable) { + + pull = GPIO_NOPULL; + + if (event == IRQ_RISE) { + if ((obj->event == EDGE_FALL) || (obj->event == EDGE_BOTH)) { + mode = STM_MODE_IT_RISING_FALLING; + obj->event = EDGE_BOTH; + } else { // NONE or RISE + mode = STM_MODE_IT_RISING; + obj->event = EDGE_RISE; + } + } + + if (event == IRQ_FALL) { + if ((obj->event == EDGE_RISE) || (obj->event == EDGE_BOTH)) { + mode = STM_MODE_IT_RISING_FALLING; + obj->event = EDGE_BOTH; + } else { // NONE or FALL + mode = STM_MODE_IT_FALLING; + obj->event = EDGE_FALL; + } + } + } else { + mode = STM_MODE_INPUT; + pull = GPIO_NOPULL; + obj->event = EDGE_NONE; + } + + pin_function(obj->pin, STM_PIN_DATA(mode, pull, 0)); +} + +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; +} diff --git a/libraries/mbed/targets/hal/TARGET_STM/TARGET_NUCLEO_F334R8/gpio_object.h b/libraries/mbed/targets/hal/TARGET_STM/TARGET_NUCLEO_F334R8/gpio_object.h new file mode 100644 index 0000000000..5569efc465 --- /dev/null +++ b/libraries/mbed/targets/hal/TARGET_STM/TARGET_NUCLEO_F334R8/gpio_object.h @@ -0,0 +1,71 @@ +/* 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 "mbed_assert.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 uint32_t *reg_in; + __IO uint16_t *reg_set; + __IO uint16_t *reg_clr; +} gpio_t; + +static inline void gpio_write(gpio_t *obj, int value) +{ + MBED_ASSERT(obj->pin != (PinName)NC); + if (value) { + *obj->reg_set = obj->mask; + } else { + *obj->reg_clr = obj->mask; + } +} + +static inline int gpio_read(gpio_t *obj) +{ + MBED_ASSERT(obj->pin != (PinName)NC); + return ((*obj->reg_in & obj->mask) ? 1 : 0); +} + +#ifdef __cplusplus +} +#endif + +#endif diff --git a/libraries/mbed/targets/hal/TARGET_STM/TARGET_NUCLEO_F334R8/i2c_api.c b/libraries/mbed/targets/hal/TARGET_STM/TARGET_NUCLEO_F334R8/i2c_api.c new file mode 100644 index 0000000000..804b0b8be4 --- /dev/null +++ b/libraries/mbed/targets/hal/TARGET_STM/TARGET_NUCLEO_F334R8/i2c_api.c @@ -0,0 +1,424 @@ +/* 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 "mbed_assert.h" +#include "i2c_api.h" + +#if DEVICE_I2C + +#include "cmsis.h" +#include "pinmap.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)0x4000) +#define LONG_TIMEOUT ((int)0x8000) + +static const PinMap PinMap_I2C_SDA[] = { + {PA_14, I2C_1, STM_PIN_DATA(STM_MODE_AF_OD, GPIO_NOPULL, GPIO_AF4_I2C1)}, + {PB_7, I2C_1, STM_PIN_DATA(STM_MODE_AF_OD, GPIO_NOPULL, GPIO_AF4_I2C1)}, + {PB_9, I2C_1, STM_PIN_DATA(STM_MODE_AF_OD, GPIO_NOPULL, GPIO_AF4_I2C1)}, + {NC, NC, 0} +}; + +static const PinMap PinMap_I2C_SCL[] = { + {PA_15, I2C_1, STM_PIN_DATA(STM_MODE_AF_OD, GPIO_NOPULL, GPIO_AF4_I2C1)}, + {PB_6, I2C_1, STM_PIN_DATA(STM_MODE_AF_OD, GPIO_NOPULL, GPIO_AF4_I2C1)}, + {PB_8, I2C_1, STM_PIN_DATA(STM_MODE_AF_OD, GPIO_NOPULL, GPIO_AF4_I2C1)}, + {NC, NC, 0} +}; + +I2C_HandleTypeDef I2cHandle; + +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); + MBED_ASSERT(obj->i2c != (I2CName)NC); + + // Enable I2C clock + __I2C1_CLK_ENABLE(); + + // Configure I2C pins + pinmap_pinout(sda, PinMap_I2C_SDA); + pinmap_pinout(scl, PinMap_I2C_SCL); + pin_mode(sda, OpenDrain); + pin_mode(scl, 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) +{ + uint32_t tim = 0; + + MBED_ASSERT((hz == 100000) || (hz == 400000) || (hz == 1000000)); + + I2cHandle.Instance = (I2C_TypeDef *)(obj->i2c); + + // Update the SystemCoreClock variable. + SystemCoreClockUpdate(); + + /* + Values calculated with I2C_Timing_Configuration_V1.0.1.xls file (see AN4235) + * Standard mode (up to 100 kHz) + * Fast Mode (up to 400 kHz) + * Fast Mode Plus (up to 1 MHz) + Below values obtained with: + - I2C clock source = 64 MHz (System Clock w/ HSI) or 72 (System Clock w/ HSE) + - Analog filter delay = ON + - Digital filter coefficient = 0 + - Rise time = 100 ns + - Fall time = 10ns + */ + if (SystemCoreClock == 64000000) { + switch (hz) { + case 100000: + tim = 0x60302730; // Standard mode + break; + case 200000: + tim = 0x00C07AB3; // Fast Mode + break; + case 400000: + tim = 0x00C0216C; // Fast Mode + break; + case 1000000: + tim = 0x00900B22; // Fast Mode Plus + // Enable the Fast Mode Plus capability + __HAL_SYSCFG_FASTMODEPLUS_ENABLE(HAL_SYSCFG_FASTMODEPLUS_I2C1); + break; + default: + break; + } + } else if (SystemCoreClock == 72000000) { + switch (hz) { + case 100000: + tim = 0x10C08DCF; // Standard mode + break; + case 200000: + tim = 0xA010031A; // Fast Mode + break; + case 400000: + tim = 0x00E0257A; // Fast Mode + break; + case 1000000: + tim = 0x00A00D26; // Fast Mode Plus + // Enable the Fast Mode Plus capability + __HAL_SYSCFG_FASTMODEPLUS_ENABLE(HAL_SYSCFG_FASTMODEPLUS_I2C1); + break; + default: + break; + } + } + + // I2C configuration + I2cHandle.Init.Timing = tim; + I2cHandle.Init.AddressingMode = I2C_ADDRESSINGMODE_7BIT; + I2cHandle.Init.DualAddressMode = I2C_DUALADDRESS_DISABLED; + I2cHandle.Init.GeneralCallMode = I2C_GENERALCALL_DISABLED; + I2cHandle.Init.NoStretchMode = I2C_NOSTRETCH_DISABLED; + I2cHandle.Init.OwnAddress1 = 0; + I2cHandle.Init.OwnAddress2 = 0; + I2cHandle.Init.OwnAddress2Masks = I2C_OA2_NOMASK; + HAL_I2C_Init(&I2cHandle); +} + +inline int i2c_start(i2c_t *obj) +{ + I2C_TypeDef *i2c = (I2C_TypeDef *)(obj->i2c); + int timeout; + + I2cHandle.Instance = (I2C_TypeDef *)(obj->i2c); + + // Clear Acknowledge failure flag + __HAL_I2C_CLEAR_FLAG(&I2cHandle, I2C_FLAG_AF); + + // Generate the START condition + i2c->CR2 |= I2C_CR2_START; + + // Wait the START condition has been correctly sent + timeout = FLAG_TIMEOUT; + while (__HAL_I2C_GET_FLAG(&I2cHandle, I2C_FLAG_BUSY) == RESET) { + if ((timeout--) == 0) { + return 1; + } + } + + return 0; +} + +inline int i2c_stop(i2c_t *obj) +{ + I2C_TypeDef *i2c = (I2C_TypeDef *)(obj->i2c); + + // Generate the STOP condition + i2c->CR2 |= I2C_CR2_STOP; + + return 0; +} + +int i2c_read(i2c_t *obj, int address, char *data, int length, int stop) +{ + I2C_TypeDef *i2c = (I2C_TypeDef *)(obj->i2c); + I2cHandle.Instance = (I2C_TypeDef *)(obj->i2c); + int timeout; + int count; + int value; + + if (length == 0) return 0; + + /* update CR2 register */ + i2c->CR2 = (i2c->CR2 & (uint32_t)~((uint32_t)(I2C_CR2_SADD | I2C_CR2_NBYTES | I2C_CR2_RELOAD | I2C_CR2_AUTOEND | I2C_CR2_RD_WRN | I2C_CR2_START | I2C_CR2_STOP))) + | (uint32_t)(((uint32_t)address & I2C_CR2_SADD) | (((uint32_t)length << 16) & I2C_CR2_NBYTES) | (uint32_t)I2C_SOFTEND_MODE | (uint32_t)I2C_GENERATE_START_READ); + + // Read all bytes + for (count = 0; count < length; count++) { + value = i2c_byte_read(obj, 0); + data[count] = (char)value; + } + + // Wait transfer complete + timeout = LONG_TIMEOUT; + while (__HAL_I2C_GET_FLAG(&I2cHandle, I2C_FLAG_TC) == RESET) { + timeout--; + if (timeout == 0) { + return 0; + } + } + + __HAL_I2C_CLEAR_FLAG(&I2cHandle, I2C_FLAG_TC); + + // If not repeated start, send stop. + if (stop) { + i2c_stop(obj); + /* Wait until STOPF flag is set */ + timeout = FLAG_TIMEOUT; + while (__HAL_I2C_GET_FLAG(&I2cHandle, I2C_FLAG_STOPF) == RESET) { + timeout--; + if (timeout == 0) { + return 0; + } + } + /* Clear STOP Flag */ + __HAL_I2C_CLEAR_FLAG(&I2cHandle, I2C_FLAG_STOPF); + } + + return length; +} + +int i2c_write(i2c_t *obj, int address, const char *data, int length, int stop) +{ + I2C_TypeDef *i2c = (I2C_TypeDef *)(obj->i2c); + I2cHandle.Instance = (I2C_TypeDef *)(obj->i2c); + int timeout; + int count; + + if (length == 0) return 0; + + /* update CR2 register */ + i2c->CR2 = (i2c->CR2 & (uint32_t)~((uint32_t)(I2C_CR2_SADD | I2C_CR2_NBYTES | I2C_CR2_RELOAD | I2C_CR2_AUTOEND | I2C_CR2_RD_WRN | I2C_CR2_START | I2C_CR2_STOP))) + | (uint32_t)(((uint32_t)address & I2C_CR2_SADD) | (((uint32_t)length << 16) & I2C_CR2_NBYTES) | (uint32_t)I2C_SOFTEND_MODE | (uint32_t)I2C_GENERATE_START_WRITE); + + for (count = 0; count < length; count++) { + i2c_byte_write(obj, data[count]); + } + + // Wait transfer complete + timeout = FLAG_TIMEOUT; + while (__HAL_I2C_GET_FLAG(&I2cHandle, I2C_FLAG_TC) == RESET) { + timeout--; + if (timeout == 0) { + return 0; + } + } + + __HAL_I2C_CLEAR_FLAG(&I2cHandle, I2C_FLAG_TC); + + // If not repeated start, send stop. + if (stop) { + i2c_stop(obj); + /* Wait until STOPF flag is set */ + timeout = FLAG_TIMEOUT; + while (__HAL_I2C_GET_FLAG(&I2cHandle, I2C_FLAG_STOPF) == RESET) { + timeout--; + if (timeout == 0) { + return 0; + } + } + /* Clear STOP Flag */ + __HAL_I2C_CLEAR_FLAG(&I2cHandle, I2C_FLAG_STOPF); + } + + return count; +} + +int i2c_byte_read(i2c_t *obj, int last) +{ + I2C_TypeDef *i2c = (I2C_TypeDef *)(obj->i2c); + int timeout; + + // Wait until the byte is received + timeout = FLAG_TIMEOUT; + while (__HAL_I2C_GET_FLAG(&I2cHandle, I2C_FLAG_RXNE) == RESET) { + if ((timeout--) == 0) { + return 0; + } + } + + return (int)i2c->RXDR; +} + +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 (__HAL_I2C_GET_FLAG(&I2cHandle, I2C_FLAG_TXIS) == RESET) { + if ((timeout--) == 0) { + return 0; + } + } + + i2c->TXDR = (uint8_t)data; + + return 1; +} + +void i2c_reset(i2c_t *obj) +{ + __I2C1_FORCE_RESET(); + __I2C1_RELEASE_RESET(); +} + +#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; + + // disable + i2c->OAR1 &= (uint32_t)(~I2C_OAR1_OA1EN); + // 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; + // enable + i2c->OAR1 |= I2C_OAR1_OA1EN; +} + +void i2c_slave_mode(i2c_t *obj, int enable_slave) +{ + + I2C_TypeDef *i2c = (I2C_TypeDef *)(obj->i2c); + uint16_t tmpreg; + + // Get the old register value + tmpreg = i2c->OAR1; + + // Enable / disable slave + if (enable_slave == 1) { + tmpreg |= I2C_OAR1_OA1EN; + } else { + tmpreg &= (uint32_t)(~I2C_OAR1_OA1EN); + } + + // Set new mode + i2c->OAR1 = tmpreg; + +} + +// 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) +{ + I2cHandle.Instance = (I2C_TypeDef *)(obj->i2c); + int retValue = NoData; + + if (__HAL_I2C_GET_FLAG(&I2cHandle, I2C_FLAG_BUSY) == 1) { + if (__HAL_I2C_GET_FLAG(&I2cHandle, I2C_FLAG_ADDR) == 1) { + if (__HAL_I2C_GET_FLAG(&I2cHandle, I2C_FLAG_DIR) == 1) + retValue = ReadAddressed; + else + retValue = WriteAddressed; + __HAL_I2C_CLEAR_FLAG(&I2cHandle, I2C_FLAG_ADDR); + } + } + + return (retValue); +} + +int i2c_slave_read(i2c_t *obj, char *data, int length) +{ + char size = 0; + + if (length == 0) return 0; + + while (size < length) data[size++] = (char)i2c_byte_read(obj, 0); + + return size; +} + +int i2c_slave_write(i2c_t *obj, const char *data, int length) +{ + char size = 0; + I2cHandle.Instance = (I2C_TypeDef *)(obj->i2c); + + if (length == 0) return 0; + + do { + i2c_byte_write(obj, data[size]); + size++; + } while (size < length); + + return size; +} + + +#endif // DEVICE_I2CSLAVE + +#endif // DEVICE_I2C diff --git a/libraries/mbed/targets/hal/TARGET_STM/TARGET_NUCLEO_F334R8/mbed_overrides.c b/libraries/mbed/targets/hal/TARGET_STM/TARGET_NUCLEO_F334R8/mbed_overrides.c new file mode 100644 index 0000000000..74ce0cf19d --- /dev/null +++ b/libraries/mbed/targets/hal/TARGET_STM/TARGET_NUCLEO_F334R8/mbed_overrides.c @@ -0,0 +1,35 @@ +/* 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 "cmsis.h" + +// This function is called after RAM initialization and before main. +void mbed_sdk_init() +{ + // Update the SystemCoreClock variable. + SystemCoreClockUpdate(); +} diff --git a/libraries/mbed/targets/hal/TARGET_STM/TARGET_NUCLEO_F334R8/objects.h b/libraries/mbed/targets/hal/TARGET_STM/TARGET_NUCLEO_F334R8/objects.h new file mode 100644 index 0000000000..9b69ed4bc4 --- /dev/null +++ b/libraries/mbed/targets/hal/TARGET_STM/TARGET_NUCLEO_F334R8/objects.h @@ -0,0 +1,110 @@ +/* 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; + PinName pin; +}; + +struct port_s { + PortName port; + uint32_t mask; + PinDirection direction; + __IO uint32_t *reg_in; + __IO uint32_t *reg_out; +}; + +struct analogin_s { + ADCName adc; + PinName pin; +}; + +struct dac_s { + DACName dac; + PinName pin; +}; + +struct serial_s { + UARTName uart; + int index; // Used by irq + uint32_t baudrate; + uint32_t databits; + uint32_t stopbits; + uint32_t parity; + PinName pin_tx; + PinName pin_rx; +}; + +struct spi_s { + SPIName spi; + uint32_t bits; + uint32_t cpol; + uint32_t cpha; + uint32_t mode; + uint32_t nss; + uint32_t br_presc; + PinName pin_miso; + PinName pin_mosi; + PinName pin_sclk; + PinName pin_ssel; +}; + +struct i2c_s { + I2CName i2c; + uint32_t slave; +}; + +struct pwmout_s { + PWMName pwm; + PinName pin; + uint32_t period; + uint32_t pulse; +}; + +#include "gpio_object.h" + +#ifdef __cplusplus +} +#endif + +#endif diff --git a/libraries/mbed/targets/hal/TARGET_STM/TARGET_NUCLEO_F334R8/pinmap.c b/libraries/mbed/targets/hal/TARGET_STM/TARGET_NUCLEO_F334R8/pinmap.c new file mode 100644 index 0000000000..5a7d5a30c4 --- /dev/null +++ b/libraries/mbed/targets/hal/TARGET_STM/TARGET_NUCLEO_F334R8/pinmap.c @@ -0,0 +1,138 @@ +/* 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 "mbed_assert.h" +#include "pinmap.h" +#include "PortNames.h" +#include "error.h" + +// GPIO mode look-up table +static const uint32_t gpio_mode[12] = { + 0x00000000, // 0 = GPIO_MODE_INPUT + 0x00000001, // 1 = GPIO_MODE_OUTPUT_PP + 0x00000011, // 2 = GPIO_MODE_OUTPUT_OD + 0x00000002, // 3 = GPIO_MODE_AF_PP + 0x00000012, // 4 = GPIO_MODE_AF_OD + 0x00000003, // 5 = GPIO_MODE_ANALOG + 0x10110000, // 6 = GPIO_MODE_IT_RISING + 0x10210000, // 7 = GPIO_MODE_IT_FALLING + 0x10310000, // 8 = GPIO_MODE_IT_RISING_FALLING + 0x10120000, // 9 = GPIO_MODE_EVT_RISING + 0x10220000, // 10 = GPIO_MODE_EVT_FALLING + 0x10320000 // 11 = GPIO_MODE_EVT_RISING_FALLING +}; + +// 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; + __GPIOA_CLK_ENABLE(); + break; + case PortB: + gpio_add = GPIOB_BASE; + __GPIOB_CLK_ENABLE(); + break; + case PortC: + gpio_add = GPIOC_BASE; + __GPIOC_CLK_ENABLE(); + break; + case PortD: + gpio_add = GPIOD_BASE; + __GPIOD_CLK_ENABLE(); + break; + case PortF: + gpio_add = GPIOF_BASE; + __GPIOF_CLK_ENABLE(); + break; + default: + error("Pinmap error: wrong port number."); + break; + } + return gpio_add; +} + +/** + * Configure pin (mode, speed, output type and pull-up/pull-down) + */ +void pin_function(PinName pin, int data) +{ + MBED_ASSERT(pin != (PinName)NC); + // Get the pin informations + uint32_t mode = STM_PIN_MODE(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 GPIO + GPIO_InitTypeDef GPIO_InitStructure; + GPIO_InitStructure.Pin = (uint32_t)(1 << pin_index); + GPIO_InitStructure.Mode = gpio_mode[mode]; + GPIO_InitStructure.Pull = pupd; + GPIO_InitStructure.Speed = GPIO_SPEED_HIGH; + GPIO_InitStructure.Alternate = afnum; + HAL_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)) { + // + //} +} + +/** + * Configure pin pull-up/pull-down + */ +void pin_mode(PinName pin, PinMode mode) +{ + MBED_ASSERT(pin != (PinName)NC); + 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)); + +} diff --git a/libraries/mbed/targets/hal/TARGET_STM/TARGET_NUCLEO_F334R8/port_api.c b/libraries/mbed/targets/hal/TARGET_STM/TARGET_NUCLEO_F334R8/port_api.c new file mode 100644 index 0000000000..6281c31e52 --- /dev/null +++ b/libraries/mbed/targets/hal/TARGET_STM/TARGET_NUCLEO_F334R8/port_api.c @@ -0,0 +1,103 @@ +/* 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(STM_MODE_OUTPUT_PP, GPIO_NOPULL, 0)); + } else { // PIN_INPUT + pin_function(port_pin(obj->port, i), STM_PIN_DATA(STM_MODE_INPUT, GPIO_NOPULL, 0)); + } + } + } +} + +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 diff --git a/libraries/mbed/targets/hal/TARGET_STM/TARGET_NUCLEO_F334R8/pwmout_api.c b/libraries/mbed/targets/hal/TARGET_STM/TARGET_NUCLEO_F334R8/pwmout_api.c new file mode 100644 index 0000000000..697ed1eb25 --- /dev/null +++ b/libraries/mbed/targets/hal/TARGET_STM/TARGET_NUCLEO_F334R8/pwmout_api.c @@ -0,0 +1,298 @@ +/* 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" + +#if DEVICE_PWMOUT + +#include "cmsis.h" +#include "pinmap.h" +#include "error.h" + +// TIM2 cannot be used because already used by the us_ticker +static const PinMap PinMap_PWM[] = { +// {PA_0, PWM_2, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF1_TIM2)}, // TIM2_CH1 +// {PA_1, PWM_2, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF1_TIM2)}, // TIM2_CH2 + {PA_1, PWM_15, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF9_TIM15)}, // TIM15_CH1N +// {PA_2, PWM_2, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF1_TIM2)}, // TIM2_CH3 + {PA_2, PWM_15, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF9_TIM15)}, // TIM15_CH1 +// {PA_3, PWM_2, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF1_TIM2)}, // TIM2_CH4 + {PA_3, PWM_15, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF9_TIM15)}, // TIM15_CH2 + {PA_4, PWM_3, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF2_TIM3)}, // TIM3_CH2 +// {PA_5, PWM_2, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF1_TIM2)}, // TIM2_CH1 + {PA_6, PWM_16, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF1_TIM16)}, // TIM16_CH1 +// {PA_6, PWM_3, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF2_TIM3)}, // TIM3_CH1 + {PA_7, PWM_17, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF1_TIM17)}, // TIM17_CH1 - ARDUINO +// {PA_7, PWM_3, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF2_TIM3)}, // TIM3_CH2 - ARDUINO +// {PA_7, PWM_1, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF6_TIM1)}, // TIM1_CH1N - ARDUINO + {PA_8, PWM_1, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF6_TIM1)}, // TIM1_CH1 + {PA_9, PWM_1, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF6_TIM1)}, // TIM1_CH2 +// {PA_9, PWM_2, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF10_TIM2)}, // TIM2_CH3 + {PA_10, PWM_1, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF6_TIM1)}, // TIM1_CH3 +// {PA_10, PWM_2, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF10_TIM2)}, // TIM2_CH4 +// {PA_11, PWM_1, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF6_TIM1)}, // TIM1_CH1N + {PA_11, PWM_1, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF11_TIM1)}, // TIM1_CH4 + {PA_12, PWM_16, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF1_TIM16)}, // TIM16_CH1 +// {PA_12, PWM_1, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF6_TIM1)}, // TIM1_CH2N + {PA_13, PWM_16, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF1_TIM16)}, // TIM16_CH1N +// {PA_15, PWM_2, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF1_TIM2)}, // TIM2_CH1 + + {PB_0, PWM_3, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF2_TIM3)}, // TIM3_CH3 +// {PB_0, PWM_1, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF6_TIM1)}, // TIM1_CH2N + {PB_1, PWM_3, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF2_TIM3)}, // TIM3_CH4 +// {PB_1, PWM_1, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF6_TIM1)}, // TIM1_CH3N +// {PB_3, PWM_2, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF1_TIM2)}, // TIM2_CH2 - ARDUINO --> USED BY TIMER + {PB_4, PWM_16, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF1_TIM16)}, // TIM16_CH1 - ARDUINO +// {PB_4, PWM_3, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF2_TIM3)}, // TIM3_CH1 - ARDUINO +// {PB_5, PWM_3, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF2_TIM3)}, // TIM3_CH2 + {PB_5, PWM_17, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF10_TIM17)}, // TIM17_CH1 + {PB_6, PWM_16, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF1_TIM16)}, // TIM16_CH1N - ARDUINO +// {PB_7, PWM_17, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF1_TIM17)}, // TIM17_CH1N + {PB_7, PWM_3, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF10_TIM3)}, // TIM3_CH4 + {PB_8, PWM_16, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF1_TIM16)}, // TIM16_CH1 + {PB_9, PWM_17, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF1_TIM17)}, // TIM17_CH1 +// {PB_10, PWM_2, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF1_TIM2)}, // TIM2_CH3 - ARDUINO --> USED BY TIMER +// {PB_11, PWM_2, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF1_TIM2)}, // TIM2_CH4 + {PB_13, PWM_1, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF6_TIM1)}, // TIM1_CH1N + {PB_14, PWM_15, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF1_TIM15)}, // TIM15_CH1 +// {PB_14, PWM_1, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF6_TIM1)}, // TIM1_CH2N + {PB_15, PWM_15, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF1_TIM15)}, // TIM15_CH2 +// {PB_15, PWM_15, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF2_TIM15)}, // TIM15_CH1N +// {PB_15, PWM_1, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF4_TIM1)}, // TIM1_CH3N + + {PC_0, PWM_1, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF2_TIM1)}, // TIM1_CH1 + {PC_1, PWM_1, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF2_TIM1)}, // TIM1_CH2 + {PC_2, PWM_1, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF2_TIM1)}, // TIM1_CH3 + {PC_3, PWM_1, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF2_TIM1)}, // TIM1_CH4 + {PC_6, PWM_3, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF2_TIM3)}, // TIM3_CH1 + {PC_7, PWM_3, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF2_TIM3)}, // TIM3_CH2 - ARDUINO + {PC_8, PWM_3, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF2_TIM3)}, // TIM3_CH3 + {PC_9, PWM_3, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF2_TIM3)}, // TIM3_CH4 + {PC_13, PWM_1, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF4_TIM1)}, // TIM1_CH1N + + {PF_0, PWM_1, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF6_TIM1)}, // TIM1_CH3N + {NC, NC, 0} +}; + +static TIM_HandleTypeDef TimHandle; + +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 error: pinout mapping failed."); + } + + // Enable TIM clock + if (obj->pwm == PWM_1) __TIM1_CLK_ENABLE(); + if (obj->pwm == PWM_2) __TIM2_CLK_ENABLE(); + if (obj->pwm == PWM_3) __TIM3_CLK_ENABLE(); + if (obj->pwm == PWM_15) __TIM15_CLK_ENABLE(); + if (obj->pwm == PWM_16) __TIM16_CLK_ENABLE(); + if (obj->pwm == PWM_17) __TIM17_CLK_ENABLE(); + + // Configure GPIO + pinmap_pinout(pin, PinMap_PWM); + + obj->pin = pin; + obj->period = 0; + obj->pulse = 0; + + pwmout_period_us(obj, 20000); // 20 ms per default +} + +void pwmout_free(pwmout_t* obj) +{ + // Configure GPIO + pin_function(obj->pin, STM_PIN_DATA(STM_MODE_INPUT, GPIO_NOPULL, 0)); +} + +void pwmout_write(pwmout_t* obj, float value) +{ + TIM_OC_InitTypeDef sConfig; + int channel = 0; + int complementary_channel = 0; + + TimHandle.Instance = (TIM_TypeDef *)(obj->pwm); + + if (value < (float)0.0) { + value = 0.0; + } else if (value > (float)1.0) { + value = 1.0; + } + + obj->pulse = (uint32_t)((float)obj->period * value); + + // Configure channels + sConfig.OCMode = TIM_OCMODE_PWM1; + sConfig.Pulse = obj->pulse; + sConfig.OCPolarity = TIM_OCPOLARITY_HIGH; + sConfig.OCNPolarity = TIM_OCNPOLARITY_HIGH; + sConfig.OCFastMode = TIM_OCFAST_DISABLE; + sConfig.OCIdleState = TIM_OCIDLESTATE_RESET; + sConfig.OCNIdleState = TIM_OCNIDLESTATE_RESET; + + switch (obj->pin) { + + // Channels 1 + case PA_2: + case PA_6: + case PA_7: + case PA_8: + case PA_12: + case PB_4: + case PB_5: + case PB_8: + case PB_9: + case PB_14: + case PC_0: + case PC_6: + channel = TIM_CHANNEL_1; + break; + + // Channels 1N + case PA_1: + case PA_13: + case PB_6: + case PB_13: + case PC_13: + channel = TIM_CHANNEL_1; + complementary_channel = 1; + break; + + // Channels 2 + case PA_3: + case PA_4: + case PA_9: + case PB_15: + case PC_1: + case PC_7: + channel = TIM_CHANNEL_2; + break; + + // Channels 3 + case PA_10: + case PB_0: + case PC_2: + case PC_8: + channel = TIM_CHANNEL_3; + break; + + // Channels 3N + case PF_0: + channel = TIM_CHANNEL_3; + complementary_channel = 1; + break; + + // Channels 4 + case PA_11: + case PB_1: + case PB_7: + case PC_3: + case PC_9: + channel = TIM_CHANNEL_4; + break; + + default: + return; + } + + HAL_TIM_PWM_ConfigChannel(&TimHandle, &sConfig, channel); + + if (complementary_channel) { + HAL_TIMEx_PWMN_Start(&TimHandle, channel); + } else { + HAL_TIM_PWM_Start(&TimHandle, channel); + } +} + +float pwmout_read(pwmout_t* obj) +{ + float value = 0; + if (obj->period > 0) { + value = (float)(obj->pulse) / (float)(obj->period); + } + return ((value > (float)1.0) ? (float)(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) +{ + TimHandle.Instance = (TIM_TypeDef *)(obj->pwm); + + float dc = pwmout_read(obj); + + __HAL_TIM_DISABLE(&TimHandle); + + // Update the SystemCoreClock variable + SystemCoreClockUpdate(); + + TimHandle.Init.Period = us - 1; + TimHandle.Init.Prescaler = (uint16_t)(SystemCoreClock / 1000000) - 1; // 1 µs tick + TimHandle.Init.ClockDivision = 0; + TimHandle.Init.CounterMode = TIM_COUNTERMODE_UP; + HAL_TIM_PWM_Init(&TimHandle); + + // Set duty cycle again + pwmout_write(obj, dc); + + // Save for future use + obj->period = us; + + __HAL_TIM_ENABLE(&TimHandle); +} + +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); +} + +#endif diff --git a/libraries/mbed/targets/hal/TARGET_STM/TARGET_NUCLEO_F334R8/rtc_api.c b/libraries/mbed/targets/hal/TARGET_STM/TARGET_NUCLEO_F334R8/rtc_api.c new file mode 100644 index 0000000000..28911960d0 --- /dev/null +++ b/libraries/mbed/targets/hal/TARGET_STM/TARGET_NUCLEO_F334R8/rtc_api.c @@ -0,0 +1,201 @@ +/* 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" + +#if DEVICE_RTC + +#include "error.h" + +static int rtc_inited = 0; + +static RTC_HandleTypeDef RtcHandle; + +void rtc_init(void) +{ + RCC_OscInitTypeDef RCC_OscInitStruct; + uint32_t rtc_freq = 0; + + if (rtc_inited) return; + rtc_inited = 1; + + RtcHandle.Instance = RTC; + + // Enable Power clock + __PWR_CLK_ENABLE(); + + // Enable access to Backup domain + HAL_PWR_EnableBkUpAccess(); + + // Reset Backup domain + __HAL_RCC_BACKUPRESET_FORCE(); + __HAL_RCC_BACKUPRESET_RELEASE(); + + // Enable LSE Oscillator + RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_LSE; + RCC_OscInitStruct.PLL.PLLState = RCC_PLL_NONE; /* Mandatory, otherwise the PLL is reconfigured! */ + RCC_OscInitStruct.LSEState = RCC_LSE_ON; /* External 32.768 kHz clock on OSC_IN/OSC_OUT */ + if (HAL_RCC_OscConfig(&RCC_OscInitStruct) == HAL_OK) { + // Connect LSE to RTC + __HAL_RCC_RTC_CONFIG(RCC_RTCCLKSOURCE_LSE); + rtc_freq = LSE_VALUE; + } else { + // Enable LSI clock + RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_LSI | RCC_OSCILLATORTYPE_LSE; + RCC_OscInitStruct.PLL.PLLState = RCC_PLL_NONE; // Mandatory, otherwise the PLL is reconfigured! + RCC_OscInitStruct.LSEState = RCC_LSE_OFF; + RCC_OscInitStruct.LSIState = RCC_LSI_ON; + if (HAL_RCC_OscConfig(&RCC_OscInitStruct) != HAL_OK) { + error("RTC error: LSI clock initialization failed."); + } + // Connect LSI to RTC + __HAL_RCC_RTC_CONFIG(RCC_RTCCLKSOURCE_LSI); + // Note: The LSI clock can be measured precisely using a timer input capture. + rtc_freq = LSI_VALUE; + } + + // Enable RTC + __HAL_RCC_RTC_ENABLE(); + + RtcHandle.Init.HourFormat = RTC_HOURFORMAT_24; + RtcHandle.Init.AsynchPrediv = 127; + RtcHandle.Init.SynchPrediv = (rtc_freq / 128) - 1; + RtcHandle.Init.OutPut = RTC_OUTPUT_DISABLE; + RtcHandle.Init.OutPutPolarity = RTC_OUTPUT_POLARITY_HIGH; + RtcHandle.Init.OutPutType = RTC_OUTPUT_TYPE_OPENDRAIN; + + if (HAL_RTC_Init(&RtcHandle) != HAL_OK) { + error("RTC error: RTC initialization failed."); + } +} + +void rtc_free(void) +{ + // Enable Power clock + __PWR_CLK_ENABLE(); + + // Enable access to Backup domain + HAL_PWR_EnableBkUpAccess(); + + // Reset Backup domain + __HAL_RCC_BACKUPRESET_FORCE(); + __HAL_RCC_BACKUPRESET_RELEASE(); + + // Disable access to Backup domain + HAL_PWR_DisableBkUpAccess(); + + // Disable LSI and LSE clocks + RCC_OscInitTypeDef RCC_OscInitStruct; + RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_LSI | RCC_OSCILLATORTYPE_LSE; + RCC_OscInitStruct.PLL.PLLState = RCC_PLL_NONE; + RCC_OscInitStruct.LSIState = RCC_LSI_OFF; + RCC_OscInitStruct.LSEState = RCC_LSE_OFF; + HAL_RCC_OscConfig(&RCC_OscInitStruct); + + 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; + + RtcHandle.Instance = RTC; + + // Read actual date and time + // Warning: the time must be read first! + HAL_RTC_GetTime(&RtcHandle, &timeStruct, FORMAT_BIN); + HAL_RTC_GetDate(&RtcHandle, &dateStruct, FORMAT_BIN); + + // Setup a tm structure based on the RTC + timeinfo.tm_wday = dateStruct.WeekDay; + timeinfo.tm_mon = dateStruct.Month - 1; + timeinfo.tm_mday = dateStruct.Date; + timeinfo.tm_year = dateStruct.Year + 100; + timeinfo.tm_hour = timeStruct.Hours; + timeinfo.tm_min = timeStruct.Minutes; + timeinfo.tm_sec = timeStruct.Seconds; + + // Convert to timestamp + time_t t = mktime(&timeinfo); + + return t; +} + +void rtc_write(time_t t) +{ + RTC_DateTypeDef dateStruct; + RTC_TimeTypeDef timeStruct; + + RtcHandle.Instance = RTC; + + // Convert the time into a tm + struct tm *timeinfo = localtime(&t); + + // Fill RTC structures + dateStruct.WeekDay = timeinfo->tm_wday; + dateStruct.Month = timeinfo->tm_mon + 1; + dateStruct.Date = timeinfo->tm_mday; + dateStruct.Year = timeinfo->tm_year - 100; + timeStruct.Hours = timeinfo->tm_hour; + timeStruct.Minutes = timeinfo->tm_min; + timeStruct.Seconds = timeinfo->tm_sec; + timeStruct.TimeFormat = RTC_HOURFORMAT12_PM; + timeStruct.DayLightSaving = RTC_DAYLIGHTSAVING_NONE; + timeStruct.StoreOperation = RTC_STOREOPERATION_RESET; + + // Change the RTC current date/time + HAL_RTC_SetDate(&RtcHandle, &dateStruct, FORMAT_BIN); + HAL_RTC_SetTime(&RtcHandle, &timeStruct, FORMAT_BIN); +} + +#endif diff --git a/libraries/mbed/targets/hal/TARGET_STM/TARGET_NUCLEO_F334R8/serial_api.c b/libraries/mbed/targets/hal/TARGET_STM/TARGET_NUCLEO_F334R8/serial_api.c new file mode 100644 index 0000000000..4e2fd44ae6 --- /dev/null +++ b/libraries/mbed/targets/hal/TARGET_STM/TARGET_NUCLEO_F334R8/serial_api.c @@ -0,0 +1,368 @@ +/* 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 "mbed_assert.h" +#include "serial_api.h" + +#if DEVICE_SERIAL + +#include "cmsis.h" +#include "pinmap.h" +#include + +static const PinMap PinMap_UART_TX[] = { + {PA_2, UART_2, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF7_USART2)}, + {PA_9, UART_1, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF7_USART1)}, + {PA_14, UART_2, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF7_USART2)}, + {PB_3, UART_2, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF7_USART2)}, + {PB_6, UART_1, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF7_USART1)}, + {PB_9, UART_3, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF7_USART3)}, + {PB_10, UART_3, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF7_USART3)}, + {PC_4, UART_1, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF7_USART1)}, + {PC_10, UART_3, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF7_USART3)}, + {NC, NC, 0} +}; + +static const PinMap PinMap_UART_RX[] = { + {PA_3, UART_2, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF7_USART2)}, + {PA_10, UART_1, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF7_USART1)}, + {PA_15, UART_2, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF7_USART2)}, + {PB_4, UART_2, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF7_USART2)}, + {PB_7, UART_1, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF7_USART1)}, + {PB_8, UART_3, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF7_USART3)}, + {PB_11, UART_3, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF7_USART3)}, + {PC_5, UART_1, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF7_USART1)}, + {PC_11, UART_3, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF7_USART3)}, + {NC, NC, 0} +}; + +#define UART_NUM (3) + +static uint32_t serial_irq_ids[UART_NUM] = {0, 0, 0}; + +static uart_irq_handler irq_handler; + +UART_HandleTypeDef UartHandle; + +int stdio_uart_inited = 0; +serial_t stdio_uart; + +static void init_uart(serial_t *obj) +{ + UartHandle.Instance = (USART_TypeDef *)(obj->uart); + + UartHandle.Init.BaudRate = obj->baudrate; + UartHandle.Init.WordLength = obj->databits; + UartHandle.Init.StopBits = obj->stopbits; + UartHandle.Init.Parity = obj->parity; + UartHandle.Init.HwFlowCtl = UART_HWCONTROL_NONE; + + if (obj->pin_rx == NC) { + UartHandle.Init.Mode = UART_MODE_TX; + } else if (obj->pin_tx == NC) { + UartHandle.Init.Mode = UART_MODE_RX; + } else { + UartHandle.Init.Mode = UART_MODE_TX_RX; + } + + HAL_UART_Init(&UartHandle); +} + +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); + MBED_ASSERT(obj->uart != (UARTName)NC); + + // Enable USART clock + if (obj->uart == UART_1) { + __USART1_CLK_ENABLE(); + obj->index = 0; + } + if (obj->uart == UART_2) { + __USART2_CLK_ENABLE(); + obj->index = 1; + } + if (obj->uart == UART_3) { + __USART3_CLK_ENABLE(); + obj->index = 2; + } + + // 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 = UART_WORDLENGTH_8B; + obj->stopbits = UART_STOPBITS_1; + obj->parity = UART_PARITY_NONE; + + obj->pin_tx = tx; + obj->pin_rx = rx; + + init_uart(obj); + + // 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) +{ + // Reset UART and disable clock + if (obj->uart == UART_1) { + __USART1_FORCE_RESET(); + __USART1_RELEASE_RESET(); + __USART1_CLK_DISABLE(); + } + if (obj->uart == UART_2) { + __USART2_FORCE_RESET(); + __USART2_RELEASE_RESET(); + __USART2_CLK_DISABLE(); + } + if (obj->uart == UART_3) { + __USART3_FORCE_RESET(); + __USART3_RELEASE_RESET(); + __USART3_CLK_DISABLE(); + } + + // Configure GPIOs + pin_function(obj->pin_tx, STM_PIN_DATA(STM_MODE_INPUT, GPIO_NOPULL, 0)); + pin_function(obj->pin_rx, STM_PIN_DATA(STM_MODE_INPUT, GPIO_NOPULL, 0)); + + serial_irq_ids[obj->index] = 0; +} + +void serial_baud(serial_t *obj, int baudrate) +{ + obj->baudrate = baudrate; + init_uart(obj); +} + +void serial_format(serial_t *obj, int data_bits, SerialParity parity, int stop_bits) +{ + if (data_bits == 9) { + obj->databits = UART_WORDLENGTH_9B; + } else { + obj->databits = UART_WORDLENGTH_8B; + } + + switch (parity) { + case ParityOdd: + case ParityForced0: + obj->parity = UART_PARITY_ODD; + break; + case ParityEven: + case ParityForced1: + obj->parity = UART_PARITY_EVEN; + break; + default: // ParityNone + obj->parity = UART_PARITY_NONE; + break; + } + + if (stop_bits == 2) { + obj->stopbits = UART_STOPBITS_2; + } else { + obj->stopbits = UART_STOPBITS_1; + } + + init_uart(obj); +} + +/****************************************************************************** + * INTERRUPTS HANDLING + ******************************************************************************/ + +static void uart_irq(UARTName name, int id) +{ + UartHandle.Instance = (USART_TypeDef *)name; + if (serial_irq_ids[id] != 0) { + if (__HAL_UART_GET_FLAG(&UartHandle, UART_FLAG_TC) != RESET) { + irq_handler(serial_irq_ids[id], TxIrq); + __HAL_UART_CLEAR_IT(&UartHandle, UART_FLAG_TC); + } + if (__HAL_UART_GET_FLAG(&UartHandle, UART_FLAG_RXNE) != RESET) { + irq_handler(serial_irq_ids[id], RxIrq); + // [TODO] Check which line works the best + __HAL_UART_SEND_REQ(&UartHandle, UART_RXDATA_FLUSH_REQUEST); + //__HAL_UART_CLEAR_IT(&UartHandle, UART_FLAG_RXNE); + } + } +} + +static void uart1_irq(void) +{ + uart_irq(UART_1, 0); +} + +static void uart2_irq(void) +{ + uart_irq(UART_2, 1); +} + +static void uart3_irq(void) +{ + uart_irq(UART_3, 2); +} + +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; + + UartHandle.Instance = (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 (obj->uart == UART_3) { + irq_n = USART3_IRQn; + vector = (uint32_t)&uart3_irq; + } + + if (enable) { + + if (irq == RxIrq) { + __HAL_UART_ENABLE_IT(&UartHandle, UART_IT_RXNE); + } else { // TxIrq + __HAL_UART_ENABLE_IT(&UartHandle, UART_IT_TC); + } + + NVIC_SetVector(irq_n, vector); + NVIC_EnableIRQ(irq_n); + + } else { // disable + + int all_disabled = 0; + + if (irq == RxIrq) { + __HAL_UART_DISABLE_IT(&UartHandle, UART_IT_RXNE); + // Check if TxIrq is disabled too + if ((UartHandle.Instance->CR1 & USART_CR1_TXEIE) == 0) all_disabled = 1; + } else { // TxIrq + __HAL_UART_DISABLE_IT(&UartHandle, UART_IT_TXE); + // Check if RxIrq is disabled too + if ((UartHandle.Instance->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 *uart = (USART_TypeDef *)(obj->uart); + while (!serial_readable(obj)); + if (obj->databits == UART_WORDLENGTH_8B) { + return (int)(uart->RDR & (uint8_t)0xFF); + } else { + return (int)(uart->RDR & (uint16_t)0x1FF); + } +} + +void serial_putc(serial_t *obj, int c) +{ + USART_TypeDef *uart = (USART_TypeDef *)(obj->uart); + while (!serial_writable(obj)); + if (obj->databits == UART_WORDLENGTH_8B) { + uart->TDR = (uint8_t)(c & (uint8_t)0xFF); + } else { + uart->TDR = (uint16_t)(c & (uint16_t)0x1FF); + } +} + +int serial_readable(serial_t *obj) +{ + int status; + UartHandle.Instance = (USART_TypeDef *)(obj->uart); + // Check if data is received + status = ((__HAL_UART_GET_FLAG(&UartHandle, UART_FLAG_RXNE) != RESET) ? 1 : 0); + return status; +} + +int serial_writable(serial_t *obj) +{ + int status; + UartHandle.Instance = (USART_TypeDef *)(obj->uart); + // Check if data is transmitted + status = ((__HAL_UART_GET_FLAG(&UartHandle, UART_FLAG_TXE) != RESET) ? 1 : 0); + return status; +} + +void serial_clear(serial_t *obj) +{ + UartHandle.Instance = (USART_TypeDef *)(obj->uart); + __HAL_UART_CLEAR_IT(&UartHandle, UART_FLAG_TXE); + __HAL_UART_CLEAR_IT(&UartHandle, UART_FLAG_RXNE); +} + +void serial_pinout_tx(PinName tx) +{ + pinmap_pinout(tx, PinMap_UART_TX); +} + +void serial_break_set(serial_t *obj) +{ + UartHandle.Instance = (USART_TypeDef *)(obj->uart); + HAL_LIN_SendBreak(&UartHandle); +} + +void serial_break_clear(serial_t *obj) +{ +} + +#endif diff --git a/libraries/mbed/targets/hal/TARGET_STM/TARGET_NUCLEO_F334R8/sleep.c b/libraries/mbed/targets/hal/TARGET_STM/TARGET_NUCLEO_F334R8/sleep.c new file mode 100644 index 0000000000..897dc12a4e --- /dev/null +++ b/libraries/mbed/targets/hal/TARGET_STM/TARGET_NUCLEO_F334R8/sleep.c @@ -0,0 +1,55 @@ +/* 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" + +#if DEVICE_SLEEP + +#include "cmsis.h" + +void sleep(void) +{ + // Stop HAL systick + HAL_SuspendTick(); + // Request to enter SLEEP mode + HAL_PWR_EnterSLEEPMode(PWR_MAINREGULATOR_ON, PWR_SLEEPENTRY_WFI); + // Restart HAL systick + HAL_ResumeTick(); +} + +void deepsleep(void) +{ + // Request to enter STOP mode with regulator in low power mode + HAL_PWR_EnterSTOPMode(PWR_LOWPOWERREGULATOR_ON, PWR_STOPENTRY_WFI); + + // After wake-up from STOP reconfigure the PLL + SetSysClock(); +} + +#endif diff --git a/libraries/mbed/targets/hal/TARGET_STM/TARGET_NUCLEO_F334R8/spi_api.c b/libraries/mbed/targets/hal/TARGET_STM/TARGET_NUCLEO_F334R8/spi_api.c new file mode 100644 index 0000000000..32bc3a917b --- /dev/null +++ b/libraries/mbed/targets/hal/TARGET_STM/TARGET_NUCLEO_F334R8/spi_api.c @@ -0,0 +1,308 @@ +/* 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 "mbed_assert.h" +#include "spi_api.h" + +#if DEVICE_SPI + +#include +#include "cmsis.h" +#include "pinmap.h" + +static const PinMap PinMap_SPI_MOSI[] = { + {PA_7, SPI_1, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF5_SPI1)}, + {PB_5, SPI_1, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF5_SPI1)}, + {NC, NC, 0} +}; + +static const PinMap PinMap_SPI_MISO[] = { + {PA_6, SPI_1, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF5_SPI1)}, + {PB_4, SPI_1, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF5_SPI1)}, + {NC, NC, 0} +}; + +static const PinMap PinMap_SPI_SCLK[] = { + {PA_5, SPI_1, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF5_SPI1)}, + {PB_3, SPI_1, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF5_SPI1)}, + {NC, NC, 0} +}; + +static const PinMap PinMap_SPI_SSEL[] = { + {PA_4, SPI_1, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF5_SPI1)}, + {PA_15, SPI_1, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF5_SPI1)}, + {NC, NC, 0} +}; + +static SPI_HandleTypeDef SpiHandle; + +static void init_spi(spi_t *obj) +{ + SpiHandle.Instance = (SPI_TypeDef *)(obj->spi); + + __HAL_SPI_DISABLE(&SpiHandle); + + SpiHandle.Init.Mode = obj->mode; + SpiHandle.Init.BaudRatePrescaler = obj->br_presc; + SpiHandle.Init.Direction = SPI_DIRECTION_2LINES; + SpiHandle.Init.CLKPhase = obj->cpha; + SpiHandle.Init.CLKPolarity = obj->cpol; + SpiHandle.Init.CRCCalculation = SPI_CRCCALCULATION_DISABLED; + SpiHandle.Init.CRCPolynomial = 7; + SpiHandle.Init.DataSize = obj->bits; + SpiHandle.Init.FirstBit = SPI_FIRSTBIT_MSB; + SpiHandle.Init.NSS = obj->nss; + SpiHandle.Init.TIMode = SPI_TIMODE_DISABLED; + + HAL_SPI_Init(&SpiHandle); + + __HAL_SPI_ENABLE(&SpiHandle); +} + +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); + MBED_ASSERT(obj->spi != (SPIName)NC); + + // Enable SPI clock + __SPI1_CLK_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_8BIT; + obj->cpol = SPI_POLARITY_LOW; + obj->cpha = SPI_PHASE_1EDGE; + obj->br_presc = SPI_BAUDRATEPRESCALER_256; + + obj->pin_miso = miso; + obj->pin_mosi = mosi; + obj->pin_sclk = sclk; + obj->pin_ssel = ssel; + + if (ssel == NC) { // SW NSS Master mode + 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_HARD_INPUT; + } + + init_spi(obj); +} + +void spi_free(spi_t *obj) +{ + // Reset SPI and disable clock + __SPI1_FORCE_RESET(); + __SPI1_RELEASE_RESET(); + __SPI1_CLK_DISABLE(); + + // Configure GPIOs + pin_function(obj->pin_miso, STM_PIN_DATA(STM_MODE_INPUT, GPIO_NOPULL, 0)); + pin_function(obj->pin_mosi, STM_PIN_DATA(STM_MODE_INPUT, GPIO_NOPULL, 0)); + pin_function(obj->pin_sclk, STM_PIN_DATA(STM_MODE_INPUT, GPIO_NOPULL, 0)); + pin_function(obj->pin_ssel, STM_PIN_DATA(STM_MODE_INPUT, GPIO_NOPULL, 0)); +} + +void spi_format(spi_t *obj, int bits, int mode, int slave) +{ + // Save new values + if (bits == 16) { + obj->bits = SPI_DATASIZE_16BIT; + } else { + obj->bits = SPI_DATASIZE_8BIT; + } + + switch (mode) { + case 0: + obj->cpol = SPI_POLARITY_LOW; + obj->cpha = SPI_PHASE_1EDGE; + break; + case 1: + obj->cpol = SPI_POLARITY_LOW; + obj->cpha = SPI_PHASE_2EDGE; + break; + case 2: + obj->cpol = SPI_POLARITY_HIGH; + obj->cpha = SPI_PHASE_1EDGE; + break; + default: + obj->cpol = SPI_POLARITY_HIGH; + obj->cpha = SPI_PHASE_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_INPUT; + } + + init_spi(obj); +} + +void spi_frequency(spi_t *obj, int hz) +{ + // Values depend of APB2CLK : 64 MHz if HSI is used, 72 MHz if HSE is used + if (hz < 500000) { + obj->br_presc = SPI_BAUDRATEPRESCALER_256; // 250 kHz - 281 kHz + } else if ((hz >= 500000) && (hz < 1000000)) { + obj->br_presc = SPI_BAUDRATEPRESCALER_128; // 500 kHz - 563 kHz + } else if ((hz >= 1000000) && (hz < 2000000)) { + obj->br_presc = SPI_BAUDRATEPRESCALER_64; // 1 MHz - 1.13 MHz + } else if ((hz >= 2000000) && (hz < 4000000)) { + obj->br_presc = SPI_BAUDRATEPRESCALER_32; // 2 MHz - 2.25 MHz + } else if ((hz >= 4000000) && (hz < 8000000)) { + obj->br_presc = SPI_BAUDRATEPRESCALER_16; // 4 MHz - 4.5 MHz + } else if ((hz >= 8000000) && (hz < 16000000)) { + obj->br_presc = SPI_BAUDRATEPRESCALER_8; // 8 MHz - 9 MHz + } else if ((hz >= 16000000) && (hz < 32000000)) { + obj->br_presc = SPI_BAUDRATEPRESCALER_4; // 16 MHz - 18 MHz + } else { // >= 32000000 + obj->br_presc = SPI_BAUDRATEPRESCALER_2; // 32 MHz - 36 MHz + } + + init_spi(obj); +} + +static inline int ssp_readable(spi_t *obj) +{ + int status; + SpiHandle.Instance = (SPI_TypeDef *)(obj->spi); + // Check if data is received + status = ((__HAL_SPI_GET_FLAG(&SpiHandle, SPI_FLAG_RXNE) != RESET) ? 1 : 0); + return status; +} + +static inline int ssp_writeable(spi_t *obj) +{ + int status; + SpiHandle.Instance = (SPI_TypeDef *)(obj->spi); + // Check if data is transmitted + status = ((__HAL_SPI_GET_FLAG(&SpiHandle, SPI_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_8BIT) { + // Force 8-bit access to the data register + uint8_t *p_spi_dr = 0; + p_spi_dr = (uint8_t *) & (spi->DR); + *p_spi_dr = (uint8_t)value; + } else { // SPI_DATASIZE_16BIT + spi->DR = (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_8BIT) { + // Force 8-bit access to the data register + uint8_t *p_spi_dr = 0; + p_spi_dr = (uint8_t *) & (spi->DR); + return (int)(*p_spi_dr); + } else { + return (int)spi->DR; + } +} + +static inline int ssp_busy(spi_t *obj) +{ + int status; + SpiHandle.Instance = (SPI_TypeDef *)(obj->spi); + status = ((__HAL_SPI_GET_FLAG(&SpiHandle, SPI_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); + while (!ssp_readable(obj)); + if (obj->bits == SPI_DATASIZE_8BIT) { + // Force 8-bit access to the data register + uint8_t *p_spi_dr = 0; + p_spi_dr = (uint8_t *) & (spi->DR); + return (int)(*p_spi_dr); + } else { + return (int)spi->DR; + } +} + +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_8BIT) { + // Force 8-bit access to the data register + uint8_t *p_spi_dr = 0; + p_spi_dr = (uint8_t *) & (spi->DR); + *p_spi_dr = (uint8_t)value; + } else { // SPI_DATASIZE_16BIT + spi->DR = (uint16_t)value; + } +} + +int spi_busy(spi_t *obj) +{ + return ssp_busy(obj); +} + +#endif diff --git a/libraries/mbed/targets/hal/TARGET_STM/TARGET_NUCLEO_F334R8/us_ticker.c b/libraries/mbed/targets/hal/TARGET_STM/TARGET_NUCLEO_F334R8/us_ticker.c new file mode 100644 index 0000000000..1deccaa0f2 --- /dev/null +++ b/libraries/mbed/targets/hal/TARGET_STM/TARGET_NUCLEO_F334R8/us_ticker.c @@ -0,0 +1,89 @@ +/* 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 +#include "us_ticker_api.h" +#include "PeripheralNames.h" + +// 32-bit timer selection +#define TIM_MST TIM2 +#define TIM_MST_IRQ TIM2_IRQn +#define TIM_MST_RCC __TIM2_CLK_ENABLE() + +static TIM_HandleTypeDef TimMasterHandle; +static int us_ticker_inited = 0; + +void us_ticker_init(void) +{ + if (us_ticker_inited) return; + us_ticker_inited = 1; + + // Enable timer clock + TIM_MST_RCC; + + // Update the SystemCoreClock variable + SystemCoreClockUpdate(); + + // Configure time base + TimMasterHandle.Instance = TIM_MST; + TimMasterHandle.Init.Period = 0xFFFFFFFF; + TimMasterHandle.Init.Prescaler = (uint32_t)(SystemCoreClock / 1000000) - 1; // 1 µs tick + TimMasterHandle.Init.ClockDivision = 0; + TimMasterHandle.Init.CounterMode = TIM_COUNTERMODE_UP; + TimMasterHandle.Init.RepetitionCounter = 0; + HAL_TIM_OC_Init(&TimMasterHandle); + + NVIC_SetVector(TIM_MST_IRQ, (uint32_t)us_ticker_irq_handler); + NVIC_EnableIRQ(TIM_MST_IRQ); + + // Enable timer + HAL_TIM_OC_Start(&TimMasterHandle, TIM_CHANNEL_1); +} + +uint32_t us_ticker_read() +{ + if (!us_ticker_inited) us_ticker_init(); + return TIM_MST->CNT; +} + +void us_ticker_set_interrupt(unsigned int timestamp) +{ + // Set new output compare value + __HAL_TIM_SetCompare(&TimMasterHandle, TIM_CHANNEL_1, timestamp); + // Enable IT + __HAL_TIM_ENABLE_IT(&TimMasterHandle, TIM_IT_CC1); +} + +void us_ticker_disable_interrupt(void) +{ + __HAL_TIM_DISABLE_IT(&TimMasterHandle, TIM_IT_CC1); +} + +void us_ticker_clear_interrupt(void) +{ + __HAL_TIM_CLEAR_IT(&TimMasterHandle, TIM_IT_CC1); +}