/* USER CODE BEGIN Header */ /** ****************************************************************************** * @file can.c * @brief This file provides code for the configuration * of the CAN instances. ****************************************************************************** * @attention * * Copyright (c) 2023 STMicroelectronics. * All rights reserved. * * This software is licensed under terms that can be found in the LICENSE file * in the root directory of this software component. * If no LICENSE file comes with this software, it is provided AS-IS. * ****************************************************************************** */ /* USER CODE END Header */ /* Includes ------------------------------------------------------------------*/ #include "can.h" /* USER CODE BEGIN 0 */ /* USER CODE END 0 */ CAN_HandleTypeDef hcan2; /* CAN2 init function */ void MX_CAN2_Init(void) { /* USER CODE BEGIN CAN2_Init 0 */ /* USER CODE END CAN2_Init 0 */ /* USER CODE BEGIN CAN2_Init 1 */ /* USER CODE END CAN2_Init 1 */ hcan2.Instance = CAN2; hcan2.Init.Prescaler = 16; hcan2.Init.Mode = CAN_MODE_NORMAL; hcan2.Init.SyncJumpWidth = CAN_SJW_1TQ; hcan2.Init.TimeSeg1 = CAN_BS1_1TQ; hcan2.Init.TimeSeg2 = CAN_BS2_1TQ; hcan2.Init.TimeTriggeredMode = DISABLE; hcan2.Init.AutoBusOff = DISABLE; hcan2.Init.AutoWakeUp = DISABLE; hcan2.Init.AutoRetransmission = DISABLE; hcan2.Init.ReceiveFifoLocked = DISABLE; hcan2.Init.TransmitFifoPriority = DISABLE; if (HAL_CAN_Init(&hcan2) != HAL_OK) { Error_Handler(); } /* USER CODE BEGIN CAN2_Init 2 */ /* USER CODE END CAN2_Init 2 */ } void HAL_CAN_MspInit(CAN_HandleTypeDef* canHandle) { GPIO_InitTypeDef GPIO_InitStruct = {0}; if(canHandle->Instance==CAN2) { /* USER CODE BEGIN CAN2_MspInit 0 */ /* USER CODE END CAN2_MspInit 0 */ /* CAN2 clock enable */ __HAL_RCC_CAN2_CLK_ENABLE(); __HAL_RCC_CAN1_CLK_ENABLE(); __HAL_RCC_GPIOB_CLK_ENABLE(); /**CAN2 GPIO Configuration PB12 ------> CAN2_RX PB13 ------> CAN2_TX */ GPIO_InitStruct.Pin = GPIO_PIN_12|GPIO_PIN_13; GPIO_InitStruct.Mode = GPIO_MODE_AF_PP; GPIO_InitStruct.Pull = GPIO_NOPULL; GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_VERY_HIGH; GPIO_InitStruct.Alternate = GPIO_AF9_CAN2; HAL_GPIO_Init(GPIOB, &GPIO_InitStruct); /* USER CODE BEGIN CAN2_MspInit 1 */ /* USER CODE END CAN2_MspInit 1 */ } } void HAL_CAN_MspDeInit(CAN_HandleTypeDef* canHandle) { if(canHandle->Instance==CAN2) { /* USER CODE BEGIN CAN2_MspDeInit 0 */ /* USER CODE END CAN2_MspDeInit 0 */ /* Peripheral clock disable */ __HAL_RCC_CAN2_CLK_DISABLE(); __HAL_RCC_CAN1_CLK_DISABLE(); /**CAN2 GPIO Configuration PB12 ------> CAN2_RX PB13 ------> CAN2_TX */ HAL_GPIO_DeInit(GPIOB, GPIO_PIN_12|GPIO_PIN_13); /* CAN2 interrupt Deinit */ HAL_NVIC_DisableIRQ(CAN2_RX0_IRQn); HAL_NVIC_DisableIRQ(CAN2_RX1_IRQn); /* USER CODE BEGIN CAN2_MspDeInit 1 */ /* USER CODE END CAN2_MspDeInit 1 */ } } /* USER CODE BEGIN 1 */ /* USER CODE END 1 */