CAN_Loopback
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Outline
Includes
#include "main.h"
HAL_CAN_MspInit(CAN_HandleTypeDef *)
HAL_CAN_MspDeInit(CAN_HandleTypeDef *)
Files
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SourceVuSTM32 Libraries and SamplesCAN_LoopbackSrc/stm32f4xx_hal_msp.c
 
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/** ****************************************************************************** * @file CAN/CAN_LoopBack/Src/stm32f4xx_hal_msp.c * @author MCD Application Team * @brief HAL MSP module. ****************************************************************************** * @attention * * Copyright (c) 2017 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. * ****************************************************************************** *//* ... */ /* Includes ------------------------------------------------------------------*/ #include "main.h" /** @addtogroup STM32F4xx_HAL_Examples * @{ *//* ... */ /** @defgroup CAN_LoopBack * @{ *//* ... */ Includes /* Private typedef -----------------------------------------------------------*/ /* Private define ------------------------------------------------------------*/ /* Private macro -------------------------------------------------------------*/ /* Private variables ---------------------------------------------------------*/ /* Private function prototypes -----------------------------------------------*/ /* Private functions ---------------------------------------------------------*/ /** @defgroup HAL_MSP_Private_Functions * @{ *//* ... */ /** * @brief CAN MSP Initialization * This function configures the hardware resources used in this example: * - Peripheral's clock enable * - Peripheral's GPIO Configuration * @param hcan: CAN handle pointer * @retval None *//* ... */ void HAL_CAN_MspInit(CAN_HandleTypeDef* hcan) { GPIO_InitTypeDef GPIO_InitStruct; /*##-1- Enable peripherals and GPIO Clocks #################################*/ /* CAN1 Periph clock enable */ CANx_CLK_ENABLE(); /* Enable GPIO clock ****************************************/ CANx_GPIO_CLK_ENABLE(); /*##-2- Configure peripheral GPIO ##########################################*/ /* CAN1 TX GPIO pin configuration */ GPIO_InitStruct.Pin = CANx_TX_PIN; GPIO_InitStruct.Mode = GPIO_MODE_AF_PP; GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_HIGH; GPIO_InitStruct.Pull = GPIO_PULLUP; GPIO_InitStruct.Alternate = CANx_TX_AF; HAL_GPIO_Init(CANx_TX_GPIO_PORT, &GPIO_InitStruct); /* CAN1 RX GPIO pin configuration */ GPIO_InitStruct.Pin = CANx_RX_PIN; GPIO_InitStruct.Mode = GPIO_MODE_AF_PP; GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_HIGH; GPIO_InitStruct.Pull = GPIO_PULLUP; GPIO_InitStruct.Alternate = CANx_RX_AF; HAL_GPIO_Init(CANx_TX_GPIO_PORT, &GPIO_InitStruct); }{ ... } /** * @brief CAN MSP De-Initialization * This function frees the hardware resources used in this example: * - Disable the Peripheral's clock * - Revert GPIO configuration to their default state * @param hcan: CAN handle pointer * @retval None *//* ... */ void HAL_CAN_MspDeInit(CAN_HandleTypeDef *hcan) { /*##-1- Reset peripherals ##################################################*/ CANx_FORCE_RESET(); CANx_RELEASE_RESET(); /*##-2- Disable peripherals and GPIO Clocks ################################*/ /* De-initialize the CAN1 TX GPIO pin */ HAL_GPIO_DeInit(CANx_TX_GPIO_PORT, CANx_TX_PIN); /* De-initialize the CAN1 RX GPIO pin */ HAL_GPIO_DeInit(CANx_RX_GPIO_PORT, CANx_RX_PIN); }{ ... } /** * @} *//* ... */ /** * @} *//* ... */ /** * @} *//* ... */
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