text: /* USER CODE BEGIN Header */
  /**
    ******************************************************************************
    * File Name          : stm32f4xx_hal_msp.c
    * Description        : This file provides code for the MSP Initialization 
    *                      and de-Initialization codes.
    ******************************************************************************
    * @attention
    *
    * <h2><center>&copy; Copyright (c) 2020 STMicroelectronics.
    * All rights reserved.</center></h2>
    *
    * This software component is licensed by ST under Ultimate Liberty license
    * SLA0044, the "License"; You may not use this file except in compliance with
    * the License. You may obtain a copy of the License at:
    *                             www.st.com/SLA0044
    *
    ******************************************************************************
    */
  /* 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();
  
    HAL_NVIC_SetPriorityGrouping(NVIC_PRIORITYGROUP_0);
  
    /* System interrupt init*/
  
    /* USER CODE BEGIN MspInit 1 */
  
    /* USER CODE END MspInit 1 */
  }
  
  /**
  * @brief CRC MSP Initialization
  * This function configures the hardware resources used in this example
  * @param hcrc: CRC handle pointer
  * @retval None
  */
  void HAL_CRC_MspInit(CRC_HandleTypeDef* hcrc)
  {
    if(hcrc->Instance==CRC)
    {
    /* USER CODE BEGIN CRC_MspInit 0 */
  
    /* USER CODE END CRC_MspInit 0 */
      /* Peripheral clock enable */
      __HAL_RCC_CRC_CLK_ENABLE();
    /* USER CODE BEGIN CRC_MspInit 1 */
  
    /* USER CODE END CRC_MspInit 1 */
    }
  
  }
  
  /**
  * @brief CRC MSP De-Initialization
  * This function freeze the hardware resources used in this example
  * @param hcrc: CRC handle pointer
  * @retval None
  */
  void HAL_CRC_MspDeInit(CRC_HandleTypeDef* hcrc)
  {
    if(hcrc->Instance==CRC)
    {
    /* USER CODE BEGIN CRC_MspDeInit 0 */
  
    /* USER CODE END CRC_MspDeInit 0 */
      /* Peripheral clock disable */
      __HAL_RCC_CRC_CLK_DISABLE();
    /* USER CODE BEGIN CRC_MspDeInit 1 */
  
    /* USER CODE END CRC_MspDeInit 1 */
    }
  
  }
  
  /**
  * @brief I2C MSP Initialization
  * This function configures the hardware resources used in this example
  * @param hi2c: I2C handle pointer
  * @retval None
  */
  void HAL_I2C_MspInit(I2C_HandleTypeDef* hi2c)
  {
    GPIO_InitTypeDef GPIO_InitStruct = {0};
    if(hi2c->Instance==I2C1)
    {
    /* USER CODE BEGIN I2C1_MspInit 0 */
  
    /* USER CODE END I2C1_MspInit 0 */
    
      __HAL_RCC_GPIOB_CLK_ENABLE();
      /**I2C1 GPIO Configuration    
      PB6     ------> I2C1_SCL
      PB9     ------> I2C1_SDA 
      */
      GPIO_InitStruct.Pin = Audio_SCL_Pin|Audio_SDA_Pin;
      GPIO_InitStruct.Mode = GPIO_MODE_AF_OD;
      GPIO_InitStruct.Pull = GPIO_PULLUP;
      GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
      GPIO_InitStruct.Alternate = GPIO_AF4_I2C1;
      HAL_GPIO_Init(GPIOB, &GPIO_InitStruct);
  
      /* Peripheral clock enable */
      __HAL_RCC_I2C1_CLK_ENABLE();
    /* USER CODE BEGIN I2C1_MspInit 1 */
  
    /* USER CODE END I2C1_MspInit 1 */
    }
  
  }
  
  /**
  * @brief I2C MSP De-Initialization
  * This function freeze the hardware resources used in this example
  * @param hi2c: I2C handle pointer
  * @retval None
  */
  void HAL_I2C_MspDeInit(I2C_HandleTypeDef* hi2c)
  {
    if(hi2c->Instance==I2C1)
    {
    /* USER CODE BEGIN I2C1_MspDeInit 0 */
  
    /* USER CODE END I2C1_MspDeInit 0 */
      /* Peripheral clock disable */
      __HAL_RCC_I2C1_CLK_DISABLE();
    
      /**I2C1 GPIO Configuration    
      PB6     ------> I2C1_SCL
      PB9     ------> I2C1_SDA 
      */
      HAL_GPIO_DeInit(GPIOB, Audio_SCL_Pin|Audio_SDA_Pin);
  
    /* USER CODE BEGIN I2C1_MspDeInit 1 */
  
    /* USER CODE END I2C1_MspDeInit 1 */
    }
  
  }
  
  /**
  * @brief I2S MSP Initialization
  * This function configures the hardware resources used in this example
  * @param hi2s: I2S handle pointer
  * @retval None
  */
  void HAL_I2S_MspInit(I2S_HandleTypeDef* hi2s)
  {
    GPIO_InitTypeDef GPIO_InitStruct = {0};
    if(hi2s->Instance==SPI3)
    {
    /* USER CODE BEGIN SPI3_MspInit 0 */
  
    /* USER CODE END SPI3_MspInit 0 */
      /* Peripheral clock enable */
      __HAL_RCC_SPI3_CLK_ENABLE();
    
      __HAL_RCC_GPIOA_CLK_ENABLE();
      __HAL_RCC_GPIOC_CLK_ENABLE();
      /**I2S3 GPIO Configuration    
      PA4     ------> I2S3_WS
      PC7     ------> I2S3_MCK
      PC10     ------> I2S3_CK
      PC12     ------> I2S3_SD 
      */
      GPIO_InitStruct.Pin = I2S3_WS_Pin;
      GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
      GPIO_InitStruct.Pull = GPIO_NOPULL;
      GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
      GPIO_InitStruct.Alternate = GPIO_AF6_SPI3;
      HAL_GPIO_Init(I2S3_WS_GPIO_Port, &GPIO_InitStruct);
  
      GPIO_InitStruct.Pin = I2S3_MCK_Pin|I2S3_SCK_Pin|I2S3_SD_Pin;
      GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
      GPIO_InitStruct.Pull = GPIO_NOPULL;
      GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
      GPIO_InitStruct.Alternate = GPIO_AF6_SPI3;
      HAL_GPIO_Init(GPIOC, &GPIO_InitStruct);
  
    /* USER CODE BEGIN SPI3_MspInit 1 */
  
    /* USER CODE END SPI3_MspInit 1 */
    }
  
  }
  
  /**
  * @brief I2S MSP De-Initialization
  * This function freeze the hardware resources used in this example
  * @param hi2s: I2S handle pointer
  * @retval None
  */
  void HAL_I2S_MspDeInit(I2S_HandleTypeDef* hi2s)
  {
    if(hi2s->Instance==SPI3)
    {
    /* USER CODE BEGIN SPI3_MspDeInit 0 */
  
    /* USER CODE END SPI3_MspDeInit 0 */
      /* Peripheral clock disable */
      __HAL_RCC_SPI3_CLK_DISABLE();
    
      /**I2S3 GPIO Configuration    
      PA4     ------> I2S3_WS
      PC7     ------> I2S3_MCK
      PC10     ------> I2S3_CK
      PC12     ------> I2S3_SD 
      */
      HAL_GPIO_DeInit(I2S3_WS_GPIO_Port, I2S3_WS_Pin);
  
      HAL_GPIO_DeInit(GPIOC, I2S3_MCK_Pin|I2S3_SCK_Pin|I2S3_SD_Pin);
  
    /* USER CODE BEGIN SPI3_MspDeInit 1 */
  
    /* USER CODE END SPI3_MspDeInit 1 */
    }
  
  }
  
  /**
  * @brief SPI MSP Initialization
  * This function configures the hardware resources used in this example
  * @param hspi: SPI handle pointer
  * @retval None
  */
  void HAL_SPI_MspInit(SPI_HandleTypeDef* hspi)
  {
    GPIO_InitTypeDef GPIO_InitStruct = {0};
    if(hspi->Instance==SPI1)
    {
    /* USER CODE BEGIN SPI1_MspInit 0 */
  
    /* USER CODE END SPI1_MspInit 0 */
      /* Peripheral clock enable */
      __HAL_RCC_SPI1_CLK_ENABLE();
    
      __HAL_RCC_GPIOA_CLK_ENABLE();
      /**SPI1 GPIO Configuration    
      PA5     ------> SPI1_SCK
      PA6     ------> SPI1_MISO
      PA7     ------> SPI1_MOSI 
      */
      GPIO_InitStruct.Pin = SPI1_SCK_Pin|SPI1_MISO_Pin|SPI1_MOSI_Pin;
      GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
      GPIO_InitStruct.Pull = GPIO_NOPULL;
      GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
      GPIO_InitStruct.Alternate = GPIO_AF5_SPI1;
      HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);
  
    /* USER CODE BEGIN SPI1_MspInit 1 */
  
    /* USER CODE END SPI1_MspInit 1 */
    }
  
  }
  
  /**
  * @brief SPI MSP De-Initialization
  * This function freeze the hardware resources used in this example
  * @param hspi: SPI handle pointer
  * @retval None
  */
  void HAL_SPI_MspDeInit(SPI_HandleTypeDef* hspi)
  {
    if(hspi->Instance==SPI1)
    {
    /* USER CODE BEGIN SPI1_MspDeInit 0 */
  
    /* USER CODE END SPI1_MspDeInit 0 */
      /* Peripheral clock disable */
      __HAL_RCC_SPI1_CLK_DISABLE();
    
      /**SPI1 GPIO Configuration    
      PA5     ------> SPI1_SCK
      PA6     ------> SPI1_MISO
      PA7     ------> SPI1_MOSI 
      */
      HAL_GPIO_DeInit(GPIOA, SPI1_SCK_Pin|SPI1_MISO_Pin|SPI1_MOSI_Pin);
  
    /* USER CODE BEGIN SPI1_MspDeInit 1 */
  
    /* USER CODE END SPI1_MspDeInit 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};
    if(huart->Instance==USART2)
    {
    /* USER CODE BEGIN USART2_MspInit 0 */
  
    /* USER CODE END USART2_MspInit 0 */
      /* Peripheral clock enable */
      __HAL_RCC_USART2_CLK_ENABLE();
    
      __HAL_RCC_GPIOA_CLK_ENABLE();
      /**USART2 GPIO Configuration    
      PA2     ------> USART2_TX
      PA3     ------> USART2_RX 
      */
      GPIO_InitStruct.Pin = GPIO_PIN_2|GPIO_PIN_3;
      GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
      GPIO_InitStruct.Pull = GPIO_NOPULL;
      GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_VERY_HIGH;
      GPIO_InitStruct.Alternate = GPIO_AF7_USART2;
      HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);
  
    /* USER CODE BEGIN USART2_MspInit 1 */
  
    /* USER CODE END USART2_MspInit 1 */
    }
    else if(huart->Instance==USART3)
    {
    /* USER CODE BEGIN USART3_MspInit 0 */
  
    /* USER CODE END USART3_MspInit 0 */
      /* Peripheral clock enable */
      __HAL_RCC_USART3_CLK_ENABLE();
    
      __HAL_RCC_GPIOB_CLK_ENABLE();
      __HAL_RCC_GPIOD_CLK_ENABLE();
      /**USART3 GPIO Configuration    
      PB11     ------> USART3_RX
      PD8     ------> USART3_TX 
      */
      GPIO_InitStruct.Pin = GPIO_PIN_11;
      GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
      GPIO_InitStruct.Pull = GPIO_NOPULL;
      GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_VERY_HIGH;
      GPIO_InitStruct.Alternate = GPIO_AF7_USART3;
      HAL_GPIO_Init(GPIOB, &GPIO_InitStruct);
  
      GPIO_InitStruct.Pin = GPIO_PIN_8;
      GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
      GPIO_InitStruct.Pull = GPIO_NOPULL;
      GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_VERY_HIGH;
      GPIO_InitStruct.Alternate = GPIO_AF7_USART3;
      HAL_GPIO_Init(GPIOD, &GPIO_InitStruct);
  
    /* USER CODE BEGIN USART3_MspInit 1 */
  
    /* USER CODE END USART3_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==USART2)
    {
    /* USER CODE BEGIN USART2_MspDeInit 0 */
  
    /* USER CODE END USART2_MspDeInit 0 */
      /* Peripheral clock disable */
      __HAL_RCC_USART2_CLK_DISABLE();
    
      /**USART2 GPIO Configuration    
      PA2     ------> USART2_TX
      PA3     ------> USART2_RX 
      */
      HAL_GPIO_DeInit(GPIOA, GPIO_PIN_2|GPIO_PIN_3);
  
    /* USER CODE BEGIN USART2_MspDeInit 1 */
  
    /* USER CODE END USART2_MspDeInit 1 */
    }
    else if(huart->Instance==USART3)
    {
    /* USER CODE BEGIN USART3_MspDeInit 0 */
  
    /* USER CODE END USART3_MspDeInit 0 */
      /* Peripheral clock disable */
      __HAL_RCC_USART3_CLK_DISABLE();
    
      /**USART3 GPIO Configuration    
      PB11     ------> USART3_RX
      PD8     ------> USART3_TX 
      */
      HAL_GPIO_DeInit(GPIOB, GPIO_PIN_11);
  
      HAL_GPIO_DeInit(GPIOD, GPIO_PIN_8);
  
    /* USER CODE BEGIN USART3_MspDeInit 1 */
  
    /* USER CODE END USART3_MspDeInit 1 */
    }
  
  }
  
  
  
  /* USER CODE BEGIN 1 */
  
  /* USER CODE END 1 */
  
  /************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
  