Kymkim
2d7a1ff4d0
- Created HAL configuration file for STM32F1xx (stm32f1xx_hal_conf.h). - Added interrupt handler definitions in stm32f1xx_it.h. - Implemented CAN initialization and configuration in can.c. - Configured GPIO pins for output and external interrupts in gpio.c. - Developed main application logic in main.c for toggling an LED and sending CAN messages. - Implemented MSP initialization and de-initialization for CAN in stm32f1xx_hal_msp.c. - Defined interrupt service routines in stm32f1xx_it.c for CAN and EXTI interrupts. - Added README for project-specific libraries and PlatformIO configuration. - Created platformio.ini for project build settings. - Added stm32pio.ini for CubeMX integration with PlatformIO. - Included README for testing directory to guide unit testing setup.
138 lines
3.8 KiB
C
138 lines
3.8 KiB
C
/* USER CODE BEGIN Header */
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/**
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******************************************************************************
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* @file can.c
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* @brief This file provides code for the configuration
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* of the CAN instances.
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******************************************************************************
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* @attention
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*
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* Copyright (c) 2025 STMicroelectronics.
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* All rights reserved.
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*
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* This software is licensed under terms that can be found in the LICENSE file
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* in the root directory of this software component.
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* If no LICENSE file comes with this software, it is provided AS-IS.
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*
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******************************************************************************
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*/
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/* USER CODE END Header */
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/* Includes ------------------------------------------------------------------*/
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#include "can.h"
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/* USER CODE BEGIN 0 */
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/* USER CODE END 0 */
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CAN_HandleTypeDef hcan;
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/* CAN init function */
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void MX_CAN_Init(void)
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{
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/* USER CODE BEGIN CAN_Init 0 */
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/* USER CODE END CAN_Init 0 */
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/* USER CODE BEGIN CAN_Init 1 */
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/* USER CODE END CAN_Init 1 */
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hcan.Instance = CAN1;
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hcan.Init.Prescaler = 18;
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hcan.Init.Mode = CAN_MODE_NORMAL;
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hcan.Init.SyncJumpWidth = CAN_SJW_1TQ;
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hcan.Init.TimeSeg1 = CAN_BS1_13TQ;
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hcan.Init.TimeSeg2 = CAN_BS2_2TQ;
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hcan.Init.TimeTriggeredMode = DISABLE;
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hcan.Init.AutoBusOff = DISABLE;
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hcan.Init.AutoWakeUp = DISABLE;
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hcan.Init.AutoRetransmission = DISABLE;
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hcan.Init.ReceiveFifoLocked = DISABLE;
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hcan.Init.TransmitFifoPriority = DISABLE;
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if (HAL_CAN_Init(&hcan) != HAL_OK)
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{
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Error_Handler();
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}
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/* USER CODE BEGIN CAN_Init 2 */
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CAN_FilterTypeDef canfilterconf;
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canfilterconf.FilterActivation = CAN_FILTER_ENABLE;
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canfilterconf.FilterBank = 0;
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canfilterconf.FilterFIFOAssignment = CAN_FILTER_FIFO1;
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canfilterconf.FilterIdHigh = 0x399 << 5;
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canfilterconf.FilterIdLow = 0x0000;
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canfilterconf.FilterMaskIdHigh = 0x7FF << 5;
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canfilterconf.FilterMaskIdLow = 0x0000;
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canfilterconf.FilterMode = CAN_FILTERMODE_IDMASK;
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canfilterconf.FilterScale = CAN_FILTERSCALE_32BIT;
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HAL_CAN_ConfigFilter(&hcan, &canfilterconf);
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/* USER CODE END CAN_Init 2 */
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}
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void HAL_CAN_MspInit(CAN_HandleTypeDef* canHandle)
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{
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GPIO_InitTypeDef GPIO_InitStruct = {0};
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if(canHandle->Instance==CAN1)
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{
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/* USER CODE BEGIN CAN1_MspInit 0 */
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/* USER CODE END CAN1_MspInit 0 */
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/* CAN1 clock enable */
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__HAL_RCC_CAN1_CLK_ENABLE();
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__HAL_RCC_GPIOB_CLK_ENABLE();
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/**CAN GPIO Configuration
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PB8 ------> CAN_RX
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PB9 ------> CAN_TX
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*/
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GPIO_InitStruct.Pin = GPIO_PIN_8;
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GPIO_InitStruct.Mode = GPIO_MODE_INPUT;
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GPIO_InitStruct.Pull = GPIO_NOPULL;
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HAL_GPIO_Init(GPIOB, &GPIO_InitStruct);
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GPIO_InitStruct.Pin = GPIO_PIN_9;
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GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
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GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_HIGH;
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HAL_GPIO_Init(GPIOB, &GPIO_InitStruct);
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__HAL_AFIO_REMAP_CAN1_2();
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/* CAN1 interrupt Init */
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HAL_NVIC_SetPriority(CAN1_RX1_IRQn, 0, 0);
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HAL_NVIC_EnableIRQ(CAN1_RX1_IRQn);
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/* USER CODE BEGIN CAN1_MspInit 1 */
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/* USER CODE END CAN1_MspInit 1 */
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}
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}
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void HAL_CAN_MspDeInit(CAN_HandleTypeDef* canHandle)
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{
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if(canHandle->Instance==CAN1)
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{
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/* USER CODE BEGIN CAN1_MspDeInit 0 */
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/* USER CODE END CAN1_MspDeInit 0 */
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/* Peripheral clock disable */
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__HAL_RCC_CAN1_CLK_DISABLE();
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/**CAN GPIO Configuration
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PB8 ------> CAN_RX
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PB9 ------> CAN_TX
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*/
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HAL_GPIO_DeInit(GPIOB, GPIO_PIN_8|GPIO_PIN_9);
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/* CAN1 interrupt Deinit */
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HAL_NVIC_DisableIRQ(CAN1_RX1_IRQn);
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/* USER CODE BEGIN CAN1_MspDeInit 1 */
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/* USER CODE END CAN1_MspDeInit 1 */
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}
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}
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/* USER CODE BEGIN 1 */
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/* USER CODE END 1 */
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