text: /* USER CODE BEGIN Header */
  /**
    ******************************************************************************
    * @file         stm32l5xx_hal_msp.c
    * @brief        This file provides code for the MSP Initialization
    *               and de-Initialization codes.
    ******************************************************************************
    * @attention
    *
    * <h2><center>&copy; Copyright (c) 2021 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 */
  extern DMA_HandleTypeDef hdma_usart1_rx;
  
  /* 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*/
  
    /** Disable the internal Pull-Up in Dead Battery pins of UCPD peripheral
    */
    HAL_PWREx_DisableUCPDDeadBattery();
  
    /* USER CODE BEGIN MspInit 1 */
  
    /* USER CODE END MspInit 1 */
  }
  
  /**
  * @brief UART MSP Initialization
  * This function configures the hardware resources used in this example
  * @param huart: UART handle pointer
  * @retval None
  */
  void HAL_UART_MspInit(UART_HandleTypeDef* huart)
  {
    GPIO_InitTypeDef GPIO_InitStruct = {0};
    RCC_PeriphCLKInitTypeDef PeriphClkInit = {0};
    if(huart->Instance==USART1)
    {
    /* USER CODE BEGIN USART1_MspInit 0 */
  
    /* USER CODE END USART1_MspInit 0 */
    /** Initializes the peripherals clock
    */
      PeriphClkInit.PeriphClockSelection = RCC_PERIPHCLK_USART1;
      PeriphClkInit.Usart1ClockSelection = RCC_USART1CLKSOURCE_PCLK2;
      if (HAL_RCCEx_PeriphCLKConfig(&PeriphClkInit) != HAL_OK)
      {
        Error_Handler();
      }
  
      /* Peripheral clock enable */
      __HAL_RCC_USART1_CLK_ENABLE();
  
      __HAL_RCC_GPIOA_CLK_ENABLE();
      /**USART1 GPIO Configuration
      PA9     ------> USART1_TX
      PA10     ------> USART1_RX
      */
      GPIO_InitStruct.Pin = GPIO_PIN_9|GPIO_PIN_10;
      GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
      GPIO_InitStruct.Pull = GPIO_NOPULL;
      GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
      GPIO_InitStruct.Alternate = GPIO_AF7_USART1;
      HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);
  
      /* USART1 DMA Init */
      /* USART1_RX Init */
      hdma_usart1_rx.Instance = DMA1_Channel1;
      hdma_usart1_rx.Init.Request = DMA_REQUEST_USART1_RX;
      hdma_usart1_rx.Init.Direction = DMA_PERIPH_TO_MEMORY;
      hdma_usart1_rx.Init.PeriphInc = DMA_PINC_DISABLE;
      hdma_usart1_rx.Init.MemInc = DMA_MINC_ENABLE;
      hdma_usart1_rx.Init.PeriphDataAlignment = DMA_PDATAALIGN_BYTE;
      hdma_usart1_rx.Init.MemDataAlignment = DMA_MDATAALIGN_BYTE;
      hdma_usart1_rx.Init.Mode = DMA_CIRCULAR;
      hdma_usart1_rx.Init.Priority = DMA_PRIORITY_LOW;
      if (HAL_DMA_Init(&hdma_usart1_rx) != HAL_OK)
      {
        Error_Handler();
      }
  
      if (HAL_DMA_ConfigChannelAttributes(&hdma_usart1_rx, DMA_CHANNEL_NPRIV) != HAL_OK)
      {
        Error_Handler();
      }
  
      __HAL_LINKDMA(huart,hdmarx,hdma_usart1_rx);
  
      /* USART1 interrupt Init */
      HAL_NVIC_SetPriority(USART1_IRQn, 0, 0);
      HAL_NVIC_EnableIRQ(USART1_IRQn);
    /* USER CODE BEGIN USART1_MspInit 1 */
  
    /* USER CODE END USART1_MspInit 1 */
    }
  
  }
  
  /**
  * @brief UART MSP De-Initialization
  * This function freeze the hardware resources used in this example
  * @param huart: UART handle pointer
  * @retval None
  */
  void HAL_UART_MspDeInit(UART_HandleTypeDef* huart)
  {
    if(huart->Instance==USART1)
    {
    /* USER CODE BEGIN USART1_MspDeInit 0 */
  
    /* USER CODE END USART1_MspDeInit 0 */
      /* Peripheral clock disable */
      __HAL_RCC_USART1_CLK_DISABLE();
  
      /**USART1 GPIO Configuration
      PA9     ------> USART1_TX
      PA10     ------> USART1_RX
      */
      HAL_GPIO_DeInit(GPIOA, GPIO_PIN_9|GPIO_PIN_10);
  
      /* USART1 DMA DeInit */
      HAL_DMA_DeInit(huart->hdmarx);
  
      /* USART1 interrupt DeInit */
      HAL_NVIC_DisableIRQ(USART1_IRQn);
    /* USER CODE BEGIN USART1_MspDeInit 1 */
  
    /* USER CODE END USART1_MspDeInit 1 */
    }
  
  }
  
  /* USER CODE BEGIN 1 */
  
  /* USER CODE END 1 */
  
  /************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
  