Projets S4 IUT de Cachan / CANnucleo

test

Fork of CANnucleo by Zoltan Hudak

stm32f3xx_hal_msp.c@21:bcd8161f8f6c, 2016-05-19 (annotated)

Committer:
hudakz
Date:
Thu May 19 17:16:59 2016 +0000
Revision:
21:bcd8161f8f6c
Parent:
16:f4c8f45bded9 
Added support for attaching member functions as interrupt handlers.

Who changed what in which revision?

UserRevisionLine numberNew contents of line
hudakz 11:439f3a34c42e 1 /**
hudakz 11:439f3a34c42e 2 ******************************************************************************
hudakz 11:439f3a34c42e 3 * @file stm32f3xx_hal_msp.c
hudakz 11:439f3a34c42e 4 * @author MCD Application Team
hudakz 11:439f3a34c42e 5 * @version V1.0.0
hudakz 11:439f3a34c42e 6 * @date 17-December-2014
hudakz 11:439f3a34c42e 7 * @brief HAL MSP module.
hudakz 11:439f3a34c42e 8 ******************************************************************************
hudakz 11:439f3a34c42e 9 * @attention
hudakz 11:439f3a34c42e 10 *
hudakz 11:439f3a34c42e 11 * <h2><center>&copy; COPYRIGHT(c) 2014 STMicroelectronics</center></h2>
hudakz 11:439f3a34c42e 12 *
hudakz 11:439f3a34c42e 13 * Redistribution and use in source and binary forms, with or without modification,
hudakz 11:439f3a34c42e 14 * are permitted provided that the following conditions are met:
hudakz 11:439f3a34c42e 15 * 1. Redistributions of source code must retain the above copyright notice,
hudakz 11:439f3a34c42e 16 * this list of conditions and the following disclaimer.
hudakz 11:439f3a34c42e 17 * 2. Redistributions in binary form must reproduce the above copyright notice,
hudakz 11:439f3a34c42e 18 * this list of conditions and the following disclaimer in the documentation
hudakz 11:439f3a34c42e 19 * and/or other materials provided with the distribution.
hudakz 11:439f3a34c42e 20 * 3. Neither the name of STMicroelectronics nor the names of its contributors
hudakz 11:439f3a34c42e 21 * may be used to endorse or promote products derived from this software
hudakz 11:439f3a34c42e 22 * without specific prior written permission.
hudakz 11:439f3a34c42e 23 *
hudakz 11:439f3a34c42e 24 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
hudakz 11:439f3a34c42e 25 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
hudakz 11:439f3a34c42e 26 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
hudakz 11:439f3a34c42e 27 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
hudakz 11:439f3a34c42e 28 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
hudakz 11:439f3a34c42e 29 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
hudakz 11:439f3a34c42e 30 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
hudakz 11:439f3a34c42e 31 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
hudakz 11:439f3a34c42e 32 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
hudakz 11:439f3a34c42e 33 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
hudakz 11:439f3a34c42e 34 *
hudakz 11:439f3a34c42e 35 ******************************************************************************
hudakz 11:439f3a34c42e 36 *
hudakz 11:439f3a34c42e 37 * Modified by Zoltan Hudak <hudakz@inbox.com>
hudakz 11:439f3a34c42e 38 *
hudakz 11:439f3a34c42e 39 ******************************************************************************
hudakz 11:439f3a34c42e 40 */
hudakz 12:c45310ff2233 41 #if defined(TARGET_NUCLEO_F302R8) || \
hudakz 12:c45310ff2233 42 defined(TARGET_NUCLEO_F303RE) || \
hudakz 12:c45310ff2233 43 defined(TARGET_NUCLEO_F303K8) || \
hudakz 12:c45310ff2233 44 defined(TARGET_NUCLEO_F334R8) || \
hudakz 12:c45310ff2233 45 defined(TARGET_DISCO_F334C8)
hudakz 12:c45310ff2233 46
hudakz 11:439f3a34c42e 47 #include "can_api.h"
hudakz 11:439f3a34c42e 48 #include "pinmap.h"
hudakz 11:439f3a34c42e 49
hudakz 11:439f3a34c42e 50 CAN_HandleTypeDef _canHandle;
hudakz 11:439f3a34c42e 51 CanRxMsgTypeDef _canRxMsg;
hudakz 11:439f3a34c42e 52 CanTxMsgTypeDef _canTxMsg;
hudakz 11:439f3a34c42e 53 PinName _rxPin;
hudakz 11:439f3a34c42e 54 PinName _txPin;
hudakz 11:439f3a34c42e 55
hudakz 21:bcd8161f8f6c 56 void (*rxCompleteCallback)(void);
hudakz 11:439f3a34c42e 57
hudakz 11:439f3a34c42e 58 /**
hudakz 11:439f3a34c42e 59 * @brief CAN initialization.
hudakz 11:439f3a34c42e 60 * @param obj: can_t object
hudakz 11:439f3a34c42e 61 * @param rxPin: RX pin name
hudakz 11:439f3a34c42e 62 * @param txPin: TX pin name
hudakz 11:439f3a34c42e 63 * @param abom: Automatic recovery from bus-off state
hudakz 11:439f3a34c42e 64 * @retval None
hudakz 11:439f3a34c42e 65 */
hudakz 21:bcd8161f8f6c 66 void initCAN(PinName rxPin, PinName txPin, FunctionalState abom) {
hudakz 11:439f3a34c42e 67 _rxPin = rxPin;
hudakz 11:439f3a34c42e 68 _txPin = txPin;
hudakz 11:439f3a34c42e 69
hudakz 14:0344705e6fb8 70 _canHandle.Instance = ((CAN_TypeDef*)CAN_BASE);
hudakz 11:439f3a34c42e 71 _canHandle.pTxMsg = &_canTxMsg;
hudakz 11:439f3a34c42e 72 _canHandle.pRxMsg = &_canRxMsg;
hudakz 11:439f3a34c42e 73
hudakz 11:439f3a34c42e 74 _canHandle.Init.TTCM = DISABLE;
hudakz 11:439f3a34c42e 75 _canHandle.Init.ABOM = abom;
hudakz 11:439f3a34c42e 76 _canHandle.Init.AWUM = DISABLE;
hudakz 11:439f3a34c42e 77 _canHandle.Init.NART = DISABLE;
hudakz 11:439f3a34c42e 78 _canHandle.Init.RFLM = DISABLE;
hudakz 11:439f3a34c42e 79 _canHandle.Init.TXFP = DISABLE;
hudakz 11:439f3a34c42e 80 _canHandle.Init.Mode = CAN_MODE_NORMAL;
hudakz 11:439f3a34c42e 81
hudakz 11:439f3a34c42e 82 // 125kbps bit rate (default)
hudakz 11:439f3a34c42e 83 // APB1 peripheral clock = 36000000Hz
hudakz 11:439f3a34c42e 84 _canHandle.Init.Prescaler = 18; // number of time quanta = 36000000/18/125000 = 16
hudakz 11:439f3a34c42e 85 _canHandle.Init.SJW = CAN_SJW_1TQ;
hudakz 11:439f3a34c42e 86 _canHandle.Init.BS1 = CAN_BS1_11TQ; // sample point at (1 + 11) / 16 * 100 = 75%
hudakz 11:439f3a34c42e 87 _canHandle.Init.BS2 = CAN_BS2_4TQ;
hudakz 11:439f3a34c42e 88
hudakz 11:439f3a34c42e 89 HAL_CAN_Init(&_canHandle);
hudakz 11:439f3a34c42e 90 }
hudakz 11:439f3a34c42e 91
hudakz 11:439f3a34c42e 92 /**
hudakz 11:439f3a34c42e 93 * @brief CAN MSP Initialization
hudakz 11:439f3a34c42e 94 * @param hcan: CAN handle pointer
hudakz 11:439f3a34c42e 95 * @retval None
hudakz 11:439f3a34c42e 96 */
hudakz 11:439f3a34c42e 97 void HAL_CAN_MspInit(CAN_HandleTypeDef* hcan) {
hudakz 11:439f3a34c42e 98 GPIO_InitTypeDef GPIO_InitStruct;
hudakz 11:439f3a34c42e 99
hudakz 11:439f3a34c42e 100 if((_rxPin == PA_11) && (_txPin == PA_12)) {
hudakz 11:439f3a34c42e 101
hudakz 11:439f3a34c42e 102 /* CAN1 Periph clock enable */
hudakz 11:439f3a34c42e 103 __CAN_CLK_ENABLE();
hudakz 11:439f3a34c42e 104
hudakz 11:439f3a34c42e 105 /* Enable GPIO clock */
hudakz 11:439f3a34c42e 106 __GPIOA_CLK_ENABLE();
hudakz 11:439f3a34c42e 107
hudakz 11:439f3a34c42e 108 /* CAN1 RX GPIO pin configuration */
hudakz 11:439f3a34c42e 109 GPIO_InitStruct.Pin = GPIO_PIN_11;
hudakz 11:439f3a34c42e 110 GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
hudakz 11:439f3a34c42e 111 GPIO_InitStruct.Speed = GPIO_SPEED_HIGH;
hudakz 11:439f3a34c42e 112 GPIO_InitStruct.Pull = GPIO_PULLUP;
hudakz 12:c45310ff2233 113 GPIO_InitStruct.Alternate = GPIO_AF9_CAN;
hudakz 11:439f3a34c42e 114 HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);
hudakz 11:439f3a34c42e 115
hudakz 11:439f3a34c42e 116 /* CAN1 TX GPIO pin configuration */
hudakz 11:439f3a34c42e 117 GPIO_InitStruct.Pin = GPIO_PIN_12;
hudakz 11:439f3a34c42e 118 GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
hudakz 11:439f3a34c42e 119 GPIO_InitStruct.Speed = GPIO_SPEED_HIGH;
hudakz 11:439f3a34c42e 120 GPIO_InitStruct.Pull = GPIO_PULLUP;
hudakz 12:c45310ff2233 121 GPIO_InitStruct.Alternate = GPIO_AF9_CAN;
hudakz 11:439f3a34c42e 122 HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);
hudakz 11:439f3a34c42e 123 }
hudakz 14:0344705e6fb8 124 #if defined(TARGET_NUCLEO_F302R8) || \
hudakz 14:0344705e6fb8 125 defined(TARGET_NUCLEO_F303RE) || \
hudakz 14:0344705e6fb8 126 defined(TARGET_NUCLEO_F334R8) || \
hudakz 14:0344705e6fb8 127 defined(TARGET_DISCO_F334C8)
hudakz 11:439f3a34c42e 128 else
hudakz 11:439f3a34c42e 129 if((_rxPin == PB_8) && (_txPin == PB_9)) {
hudakz 11:439f3a34c42e 130 /* CAN1 Periph clock enable */
hudakz 11:439f3a34c42e 131 __CAN_CLK_ENABLE();
hudakz 11:439f3a34c42e 132
hudakz 11:439f3a34c42e 133 /* Enable GPIO clock */
hudakz 11:439f3a34c42e 134 __GPIOB_CLK_ENABLE();
hudakz 11:439f3a34c42e 135
hudakz 11:439f3a34c42e 136 /* CAN1 RX GPIO pin configuration */
hudakz 11:439f3a34c42e 137 GPIO_InitStruct.Pin = GPIO_PIN_8;
hudakz 11:439f3a34c42e 138 GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
hudakz 11:439f3a34c42e 139 GPIO_InitStruct.Speed = GPIO_SPEED_HIGH;
hudakz 11:439f3a34c42e 140 GPIO_InitStruct.Pull = GPIO_PULLUP;
hudakz 12:c45310ff2233 141 GPIO_InitStruct.Alternate = GPIO_AF9_CAN;
hudakz 12:c45310ff2233 142 HAL_GPIO_Init(GPIOB, &GPIO_InitStruct);
hudakz 11:439f3a34c42e 143
hudakz 11:439f3a34c42e 144 /* CAN1 TX GPIO pin configuration */
hudakz 11:439f3a34c42e 145 GPIO_InitStruct.Pin = GPIO_PIN_9;
hudakz 11:439f3a34c42e 146 GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
hudakz 11:439f3a34c42e 147 GPIO_InitStruct.Speed = GPIO_SPEED_HIGH;
hudakz 11:439f3a34c42e 148 GPIO_InitStruct.Pull = GPIO_PULLUP;
hudakz 12:c45310ff2233 149 GPIO_InitStruct.Alternate = GPIO_AF9_CAN;
hudakz 12:c45310ff2233 150 HAL_GPIO_Init(GPIOB, &GPIO_InitStruct);
hudakz 11:439f3a34c42e 151 }
hudakz 13:a3e2be3d49a2 152 #endif
hudakz 11:439f3a34c42e 153 else
hudakz 11:439f3a34c42e 154 return;
hudakz 11:439f3a34c42e 155 /* NVIC configuration for CAN1 Reception complete interrupt */
hudakz 16:f4c8f45bded9 156 HAL_NVIC_SetPriority(CAN_IRQ, 1, 0);
hudakz 16:f4c8f45bded9 157 HAL_NVIC_EnableIRQ(CAN_IRQ);
hudakz 11:439f3a34c42e 158 }
hudakz 11:439f3a34c42e 159
hudakz 11:439f3a34c42e 160 /**
hudakz 11:439f3a34c42e 161 * @brief CAN MSP De-Initialization
hudakz 11:439f3a34c42e 162 * This function frees the hardware resources used:
hudakz 11:439f3a34c42e 163 * - Disable the Peripheral's clock
hudakz 11:439f3a34c42e 164 * - Revert GPIO to their default state
hudakz 11:439f3a34c42e 165 * @param hcan: CAN handle pointer
hudakz 11:439f3a34c42e 166 * @retval None
hudakz 11:439f3a34c42e 167 */
hudakz 11:439f3a34c42e 168 void HAL_CAN_MspDeInit(CAN_HandleTypeDef* hcan) {
hudakz 11:439f3a34c42e 169
hudakz 11:439f3a34c42e 170 /* Reset peripherals */
hudakz 11:439f3a34c42e 171
hudakz 11:439f3a34c42e 172 __CAN_FORCE_RESET();
hudakz 11:439f3a34c42e 173 __CAN_RELEASE_RESET();
hudakz 11:439f3a34c42e 174
hudakz 11:439f3a34c42e 175 /* Disable peripherals and GPIO Clocks */
hudakz 11:439f3a34c42e 176 if((_rxPin == PA_11) && (_txPin == PA_12)) {
hudakz 11:439f3a34c42e 177 /* De-initialize the CAN1 RX GPIO pin */
hudakz 11:439f3a34c42e 178 HAL_GPIO_DeInit(GPIOA, GPIO_PIN_11);
hudakz 11:439f3a34c42e 179
hudakz 11:439f3a34c42e 180 /* De-initialize the CAN1 TX GPIO pin */
hudakz 11:439f3a34c42e 181 HAL_GPIO_DeInit(GPIOA, GPIO_PIN_12);
hudakz 11:439f3a34c42e 182 }
hudakz 12:c45310ff2233 183 else {
hudakz 12:c45310ff2233 184
hudakz 12:c45310ff2233 185 /* De-initialize the CAN1 RX GPIO pin */
hudakz 12:c45310ff2233 186 HAL_GPIO_DeInit(GPIOB, GPIO_PIN_8);
hudakz 12:c45310ff2233 187
hudakz 12:c45310ff2233 188 /* De-initialize the CAN1 TX GPIO pin */
hudakz 12:c45310ff2233 189 HAL_GPIO_DeInit(GPIOB, GPIO_PIN_9);
hudakz 12:c45310ff2233 190 }
hudakz 12:c45310ff2233 191
hudakz 11:439f3a34c42e 192
hudakz 11:439f3a34c42e 193 /* Disable the NVIC for CAN reception */
hudakz 16:f4c8f45bded9 194 HAL_NVIC_DisableIRQ(CAN_IRQ);
hudakz 11:439f3a34c42e 195 }
hudakz 11:439f3a34c42e 196
hudakz 11:439f3a34c42e 197 /**
hudakz 11:439f3a34c42e 198 * @brief Handles CAN RX0 interrupt request.
hudakz 11:439f3a34c42e 199 * @param None
hudakz 11:439f3a34c42e 200 * @retval None
hudakz 11:439f3a34c42e 201 */
hudakz 11:439f3a34c42e 202 void USB_LP_CAN_RX0_IRQHandler(void) {
hudakz 11:439f3a34c42e 203 HAL_CAN_IRQHandler(&_canHandle);
hudakz 11:439f3a34c42e 204 }
hudakz 11:439f3a34c42e 205
hudakz 11:439f3a34c42e 206 /**
hudakz 11:439f3a34c42e 207 * @brief Reception complete callback in non blocking mode
hudakz 11:439f3a34c42e 208 * @param _canHandle: pointer to a CAN_HandleTypeDef structure that contains
hudakz 11:439f3a34c42e 209 * the configuration information for the specified CAN.
hudakz 11:439f3a34c42e 210 * @retval None
hudakz 11:439f3a34c42e 211 */
hudakz 11:439f3a34c42e 212 void HAL_CAN_RxCpltCallback(CAN_HandleTypeDef* _canHandle) {
hudakz 11:439f3a34c42e 213 // if(HAL_CAN_Receive_IT(_canHandle, CAN_FIFO0) == HAL_OK) {
hudakz 11:439f3a34c42e 214 // if(rxCompleteCallback != NULL)
hudakz 11:439f3a34c42e 215 // rxCompleteCallback();
hudakz 11:439f3a34c42e 216 // }
hudakz 11:439f3a34c42e 217 // else {
hudakz 11:439f3a34c42e 218 // error_handler(error);
hudakz 11:439f3a34c42e 219 // }
hudakz 11:439f3a34c42e 220
hudakz 11:439f3a34c42e 221 // BUG: CAN race condition if HAL_CAN_Receive_IT() is used.
hudakz 11:439f3a34c42e 222 // See https://my.st.com/public/STe2ecommunities/mcu/Lists/STM32Java/Flat.aspx?RootFolder=%2Fpublic%2FSTe2ecommunities%2Fmcu%2FLists%2FSTM32Java%2FBUG%20CAN%20race%20condition%20if%20HAL%5FCAN%5FReceive%5FIT%20is%20used
hudakz 11:439f3a34c42e 223 //
hudakz 11:439f3a34c42e 224 // Fixed by Mark Burton:
hudakz 11:439f3a34c42e 225 // ideally, we should be able to call HAL_CAN_Receive_IT() here to set up for another
hudakz 11:439f3a34c42e 226 // receive but the API is flawed because that function will fail if HAL_CAN_Transmit()
hudakz 11:439f3a34c42e 227 // had already locked the handle when the receive interrupt occurred - so we do what
hudakz 11:439f3a34c42e 228 // HAL_CAN_Receive_IT() would do
hudakz 11:439f3a34c42e 229
hudakz 11:439f3a34c42e 230 if (rxCompleteCallback != 0)
hudakz 11:439f3a34c42e 231 rxCompleteCallback();
hudakz 11:439f3a34c42e 232
hudakz 11:439f3a34c42e 233 if (_canHandle->State == HAL_CAN_STATE_BUSY_TX)
hudakz 11:439f3a34c42e 234 _canHandle->State = HAL_CAN_STATE_BUSY_TX_RX;
hudakz 11:439f3a34c42e 235 else {
hudakz 11:439f3a34c42e 236 _canHandle->State = HAL_CAN_STATE_BUSY_RX;
hudakz 11:439f3a34c42e 237
hudakz 11:439f3a34c42e 238 /* Set CAN error code to none */
hudakz 11:439f3a34c42e 239 _canHandle->ErrorCode = HAL_CAN_ERROR_NONE;
hudakz 11:439f3a34c42e 240
hudakz 11:439f3a34c42e 241 /* Enable Error warning Interrupt */
hudakz 11:439f3a34c42e 242 __HAL_CAN_ENABLE_IT(_canHandle, CAN_IT_EWG);
hudakz 11:439f3a34c42e 243
hudakz 11:439f3a34c42e 244 /* Enable Error passive Interrupt */
hudakz 11:439f3a34c42e 245 __HAL_CAN_ENABLE_IT(_canHandle, CAN_IT_EPV);
hudakz 11:439f3a34c42e 246
hudakz 11:439f3a34c42e 247 /* Enable Bus-off Interrupt */
hudakz 11:439f3a34c42e 248 __HAL_CAN_ENABLE_IT(_canHandle, CAN_IT_BOF);
hudakz 11:439f3a34c42e 249
hudakz 11:439f3a34c42e 250 /* Enable Last error code Interrupt */
hudakz 11:439f3a34c42e 251 __HAL_CAN_ENABLE_IT(_canHandle, CAN_IT_LEC);
hudakz 11:439f3a34c42e 252
hudakz 11:439f3a34c42e 253 /* Enable Error Interrupt */
hudakz 11:439f3a34c42e 254 __HAL_CAN_ENABLE_IT(_canHandle, CAN_IT_ERR);
hudakz 11:439f3a34c42e 255 }
hudakz 11:439f3a34c42e 256
hudakz 11:439f3a34c42e 257 // Enable FIFO 0 message pending Interrupt
hudakz 11:439f3a34c42e 258 __HAL_CAN_ENABLE_IT(_canHandle, CAN_IT_FMP0);
hudakz 11:439f3a34c42e 259 }
hudakz 11:439f3a34c42e 260 #endif
hudakz 21:bcd8161f8f6c 261
hudakz 21:bcd8161f8f6c 262