Modbus/Core/Src/stm32f4xx_hal_msp.c

/* USER CODE BEGIN Header */
/**
  ******************************************************************************
  * @file         stm32f4xx_hal_msp.c
  * @brief        This file provides code for the MSP Initialization
  *               and de-Initialization codes.
  ******************************************************************************
  * @attention
  *
  * <h2><center>&copy; Copyright (c) 2026 STMicroelectronics.
  * All rights reserved.</center></h2>
  *
  * This software component is licensed by ST under BSD 3-Clause license,
  * the "License"; You may not use this file except in compliance with the
  * License. You may obtain a copy of the License at:
  *                        opensource.org/licenses/BSD-3-Clause
  *
  ******************************************************************************
  */
/* USER CODE END Header */

/* Includes ------------------------------------------------------------------*/
#include "main.h"
/* USER CODE BEGIN Includes */

/* USER CODE END Includes */

/* Private typedef -----------------------------------------------------------*/
/* USER CODE BEGIN TD */

/* USER CODE END TD */

/* Private define ------------------------------------------------------------*/
/* USER CODE BEGIN Define */

/* USER CODE END Define */

/* Private macro -------------------------------------------------------------*/
/* USER CODE BEGIN Macro */

/* USER CODE END Macro */

/* Private variables ---------------------------------------------------------*/
/* USER CODE BEGIN PV */

/* USER CODE END PV */

/* Private function prototypes -----------------------------------------------*/
/* USER CODE BEGIN PFP */

/* USER CODE END PFP */

/* External functions --------------------------------------------------------*/
/* USER CODE BEGIN ExternalFunctions */

/* USER CODE END ExternalFunctions */

/* USER CODE BEGIN 0 */

/* USER CODE END 0 */
/**
  * Initializes the Global MSP.
  */
void HAL_MspInit(void)
{
  /* USER CODE BEGIN MspInit 0 */

  /* USER CODE END MspInit 0 */

  __HAL_RCC_SYSCFG_CLK_ENABLE();
  __HAL_RCC_PWR_CLK_ENABLE();

  /* System interrupt init*/

  /* USER CODE BEGIN MspInit 1 */

  /* USER CODE END MspInit 1 */
}

/* USER CODE BEGIN 1 */

/*
*********************************************************************************************************
*                                       USART1 MSP 初始化
*********************************************************************************************************
*/
void HAL_UART_MspInit(UART_HandleTypeDef *huart)
{
    GPIO_InitTypeDef  GPIO_InitStruct = {0};

    if (huart->Instance == USART1) {
        /* 使能 USART1 和 GPIOA 时钟 */
        __HAL_RCC_USART1_CLK_ENABLE();
        __HAL_RCC_GPIOA_CLK_ENABLE();

        /* PA9: USART1_TX (AF7, Push-Pull) */
        GPIO_InitStruct.Pin       = GPIO_PIN_9;
        GPIO_InitStruct.Mode      = GPIO_MODE_AF_PP;
        GPIO_InitStruct.Pull      = GPIO_PULLUP;
        GPIO_InitStruct.Speed     = GPIO_SPEED_FREQ_LOW;
        GPIO_InitStruct.Alternate = GPIO_AF7_USART1;
        HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);

        /* PA10: USART1_RX (AF7, Input) */
        GPIO_InitStruct.Pin       = GPIO_PIN_10;
        GPIO_InitStruct.Mode      = GPIO_MODE_AF_OD;
        GPIO_InitStruct.Pull      = GPIO_PULLUP;
        GPIO_InitStruct.Alternate = GPIO_AF7_USART1;
        HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);

        /* 使能 USART1 中断 */
        HAL_NVIC_SetPriority(USART1_IRQn, 6u, 0u);
        HAL_NVIC_EnableIRQ(USART1_IRQn);
    }
}

/* USER CODE END 1 */

/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/