text: /**
    ******************************************************************************
    * @file    SPI/SPI_FullDuplex_AdvComIT/Master/Src/stm32f7xx_hal_msp.c
    * @author  MCD Application Team
    * @brief   HAL MSP module.
    ******************************************************************************
    * @attention
    *
    * Copyright (c) 2016 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 STM32F7xx_HAL_Examples
    * @{
    */
  
  /** @defgroup SPI_FullDuplex_AdvComIT
    * @{
    */
  
  /* Private typedef -----------------------------------------------------------*/
  /* Private define ------------------------------------------------------------*/
  /* Private macro -------------------------------------------------------------*/
  /* Private variables ---------------------------------------------------------*/
  /* Private function prototypes -----------------------------------------------*/
  /* Private functions ---------------------------------------------------------*/
  
  /** @defgroup HAL_MSP_Private_Functions
    * @{
    */
  
  /**
    * @brief SPI MSP Initialization 
    *        This function configures the hardware resources used in this example: 
    *           - Peripheral's clock enable
    *           - Peripheral's GPIO Configuration  
    * @param hspi: SPI handle pointer
    * @retval None
    */
  void HAL_SPI_MspInit(SPI_HandleTypeDef *hspi)
  {
  GPIO_InitTypeDef  GPIO_InitStruct;
  
    if (hspi->Instance == SPIx)
    {
      /*##-1- Enable peripherals and GPIO Clocks #################################*/
      /* Enable GPIO TX/RX clock */
      SPIx_SCK_GPIO_CLK_ENABLE();
      SPIx_MISO_GPIO_CLK_ENABLE();
      SPIx_MOSI_GPIO_CLK_ENABLE();
      /* Enable SPI clock */
      SPIx_CLK_ENABLE();
  
      /*##-2- Configure peripheral GPIO ##########################################*/
      /* SPI SCK GPIO pin configuration  */
      GPIO_InitStruct.Pin       = SPIx_SCK_PIN;
      GPIO_InitStruct.Mode      = GPIO_MODE_AF_PP;
      GPIO_InitStruct.Pull      = GPIO_PULLDOWN;
      GPIO_InitStruct.Speed     = GPIO_SPEED_HIGH;
      GPIO_InitStruct.Alternate = SPIx_SCK_AF;
      HAL_GPIO_Init(SPIx_SCK_GPIO_PORT, &GPIO_InitStruct);
  
      /* SPI MISO GPIO pin configuration  */
      GPIO_InitStruct.Pin = SPIx_MISO_PIN;
      GPIO_InitStruct.Alternate = SPIx_MISO_AF;
      HAL_GPIO_Init(SPIx_MISO_GPIO_PORT, &GPIO_InitStruct);
  
      /* SPI MOSI GPIO pin configuration  */
      GPIO_InitStruct.Pin = SPIx_MOSI_PIN;
      GPIO_InitStruct.Alternate = SPIx_MOSI_AF;
      HAL_GPIO_Init(SPIx_MOSI_GPIO_PORT, &GPIO_InitStruct);
  
      /*##-3- Configure the NVIC for SPI #########################################*/
      /* NVIC for SPI */
      HAL_NVIC_SetPriority(SPIx_IRQn, 1, 0);
      HAL_NVIC_EnableIRQ(SPIx_IRQn);
    }
  }
  
  /**
    * @brief SPI MSP De-Initialization 
    *        This function frees the hardware resources used in this example:
    *          - Disable the Peripheral's clock
    *          - Revert GPIO and NVIC configuration to their default state
    * @param hspi: SPI handle pointer
    * @retval None
    */
  void HAL_SPI_MspDeInit(SPI_HandleTypeDef *hspi)
  {
    if(hspi->Instance == SPIx)
    {
      /*##-1- Reset peripherals ##################################################*/
      SPIx_FORCE_RESET();
      SPIx_RELEASE_RESET();
  
      /*##-2- Disable peripherals and GPIO Clocks ################################*/
      /* Configure SPI SCK as alternate function  */
      HAL_GPIO_DeInit(SPIx_SCK_GPIO_PORT, SPIx_SCK_PIN);
      /* Configure SPI MISO as alternate function  */
      HAL_GPIO_DeInit(SPIx_MISO_GPIO_PORT, SPIx_MISO_PIN);
      /* Configure SPI MOSI as alternate function  */
      HAL_GPIO_DeInit(SPIx_MOSI_GPIO_PORT, SPIx_MOSI_PIN);
  
      /*##-3- Disable the NVIC for SPI ###########################################*/
      HAL_NVIC_DisableIRQ(SPIx_IRQn);
    }
  }
  
  /**
    * @}
    */
  
  /**
    * @}
    */
  
  /**
    * @}
    */
  
  