text: /* USER CODE BEGIN Header */
  /**
    ******************************************************************************
    * File Name          : stm32l4xx_hal_msp.c
    * Description        : This file provides code for the MSP Initialization 
    *                      and de-Initialization codes.
    ******************************************************************************
    ** This notice applies to any and all portions of this file
    * that are not between comment pairs USER CODE BEGIN and
    * USER CODE END. Other portions of this file, whether 
    * inserted by the user or by software development tools
    * are owned by their respective copyright owners.
    *
    * COPYRIGHT(c) 2018 STMicroelectronics
    *
    * Redistribution and use in source and binary forms, with or without modification,
    * are permitted provided that the following conditions are met:
    *   1. Redistributions of source code must retain the above copyright notice,
    *      this list of conditions and the following disclaimer.
    *   2. Redistributions in binary form must reproduce the above copyright notice,
    *      this list of conditions and the following disclaimer in the documentation
    *      and/or other materials provided with the distribution.
    *   3. Neither the name of STMicroelectronics nor the names of its contributors
    *      may be used to endorse or promote products derived from this software
    *      without specific prior written permission.
    *
    * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
    * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
    * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
    * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
    * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
    * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
    * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
    * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
    * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
    * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
    *
    ******************************************************************************
    */
  /* USER CODE END Header */
  
  /* Includes ------------------------------------------------------------------*/
  #include "main.h"
  /* USER CODE BEGIN Includes */
  
  /* USER CODE END Includes */
  extern DMA_HandleTypeDef hdma_spi3_rx;
  
  extern DMA_HandleTypeDef hdma_spi3_tx;
  
  /* 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*/
    /* SVCall_IRQn interrupt configuration */
    HAL_NVIC_SetPriority(SVCall_IRQn, 14, 0);
    /* PendSV_IRQn interrupt configuration */
    HAL_NVIC_SetPriority(PendSV_IRQn, 15, 0);
  
    /* USER CODE BEGIN MspInit 1 */
  
    /* USER CODE END MspInit 1 */
  }
  
  /**
  * @brief RNG MSP Initialization
  * This function configures the hardware resources used in this example
  * @param hrng: RNG handle pointer
  * @retval None
  */
  void HAL_RNG_MspInit(RNG_HandleTypeDef* hrng)
  {
    if(hrng->Instance==RNG)
    {
    /* USER CODE BEGIN RNG_MspInit 0 */
  
    /* USER CODE END RNG_MspInit 0 */
      /* Peripheral clock enable */
      __HAL_RCC_RNG_CLK_ENABLE();
    /* USER CODE BEGIN RNG_MspInit 1 */
  
    /* USER CODE END RNG_MspInit 1 */
    }
  
  }
  
  /**
  * @brief RNG MSP De-Initialization
  * This function freeze the hardware resources used in this example
  * @param hrng: RNG handle pointer
  * @retval None
  */
  void HAL_RNG_MspDeInit(RNG_HandleTypeDef* hrng)
  {
    if(hrng->Instance==RNG)
    {
    /* USER CODE BEGIN RNG_MspDeInit 0 */
  
    /* USER CODE END RNG_MspDeInit 0 */
      /* Peripheral clock disable */
      __HAL_RCC_RNG_CLK_DISABLE();
    /* USER CODE BEGIN RNG_MspDeInit 1 */
  
    /* USER CODE END RNG_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==SPI3)
    {
    /* USER CODE BEGIN SPI3_MspInit 0 */
  
    /* USER CODE END SPI3_MspInit 0 */
      /* Peripheral clock enable */
      __HAL_RCC_SPI3_CLK_ENABLE();
    
      __HAL_RCC_GPIOC_CLK_ENABLE();
      /**SPI3 GPIO Configuration    
      PC10     ------> SPI3_SCK
      PC11     ------> SPI3_MISO
      PC12     ------> SPI3_MOSI 
      */
      GPIO_InitStruct.Pin = GPIO_PIN_10|GPIO_PIN_11|GPIO_PIN_12;
      GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
      GPIO_InitStruct.Pull = GPIO_NOPULL;
      GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_VERY_HIGH;
      GPIO_InitStruct.Alternate = GPIO_AF6_SPI3;
      HAL_GPIO_Init(GPIOC, &GPIO_InitStruct);
  
      /* SPI3 DMA Init */
      /* SPI3_RX Init */
      hdma_spi3_rx.Instance = DMA2_Channel1;
      hdma_spi3_rx.Init.Request = DMA_REQUEST_3;
      hdma_spi3_rx.Init.Direction = DMA_PERIPH_TO_MEMORY;
      hdma_spi3_rx.Init.PeriphInc = DMA_PINC_DISABLE;
      hdma_spi3_rx.Init.MemInc = DMA_MINC_ENABLE;
      hdma_spi3_rx.Init.PeriphDataAlignment = DMA_PDATAALIGN_BYTE;
      hdma_spi3_rx.Init.MemDataAlignment = DMA_MDATAALIGN_BYTE;
      hdma_spi3_rx.Init.Mode = DMA_NORMAL;
      hdma_spi3_rx.Init.Priority = DMA_PRIORITY_LOW;
      if (HAL_DMA_Init(&hdma_spi3_rx) != HAL_OK)
      {
        Error_Handler();
      }
  
      __HAL_LINKDMA(hspi,hdmarx,hdma_spi3_rx);
  
      /* SPI3_TX Init */
      hdma_spi3_tx.Instance = DMA2_Channel2;
      hdma_spi3_tx.Init.Request = DMA_REQUEST_3;
      hdma_spi3_tx.Init.Direction = DMA_MEMORY_TO_PERIPH;
      hdma_spi3_tx.Init.PeriphInc = DMA_PINC_DISABLE;
      hdma_spi3_tx.Init.MemInc = DMA_MINC_ENABLE;
      hdma_spi3_tx.Init.PeriphDataAlignment = DMA_PDATAALIGN_BYTE;
      hdma_spi3_tx.Init.MemDataAlignment = DMA_MDATAALIGN_BYTE;
      hdma_spi3_tx.Init.Mode = DMA_NORMAL;
      hdma_spi3_tx.Init.Priority = DMA_PRIORITY_LOW;
      if (HAL_DMA_Init(&hdma_spi3_tx) != HAL_OK)
      {
        Error_Handler();
      }
  
      __HAL_LINKDMA(hspi,hdmatx,hdma_spi3_tx);
  
      /* SPI3 interrupt Init */
      HAL_NVIC_SetPriority(SPI3_IRQn, 8, 0);
      HAL_NVIC_EnableIRQ(SPI3_IRQn);
    /* USER CODE BEGIN SPI3_MspInit 1 */
  
    /* USER CODE END SPI3_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==SPI3)
    {
    /* USER CODE BEGIN SPI3_MspDeInit 0 */
  
    /* USER CODE END SPI3_MspDeInit 0 */
      /* Peripheral clock disable */
      __HAL_RCC_SPI3_CLK_DISABLE();
    
      /**SPI3 GPIO Configuration    
      PC10     ------> SPI3_SCK
      PC11     ------> SPI3_MISO
      PC12     ------> SPI3_MOSI 
      */
      HAL_GPIO_DeInit(GPIOC, GPIO_PIN_10|GPIO_PIN_11|GPIO_PIN_12);
  
      /* SPI3 DMA DeInit */
      HAL_DMA_DeInit(hspi->hdmarx);
      HAL_DMA_DeInit(hspi->hdmatx);
  
      /* SPI3 interrupt DeInit */
      HAL_NVIC_DisableIRQ(SPI3_IRQn);
    /* USER CODE BEGIN SPI3_MspDeInit 1 */
  
    /* USER CODE END SPI3_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==USART1)
    {
    /* USER CODE BEGIN USART1_MspInit 0 */
  
    /* USER CODE END USART1_MspInit 0 */
      /* Peripheral clock enable */
      __HAL_RCC_USART1_CLK_ENABLE();
    
      __HAL_RCC_GPIOB_CLK_ENABLE();
      /**USART1 GPIO Configuration    
      PB6     ------> USART1_TX
      PB7     ------> USART1_RX 
      */
      GPIO_InitStruct.Pin = GPIO_PIN_6|GPIO_PIN_7;
      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_USART1;
      HAL_GPIO_Init(GPIOB, &GPIO_InitStruct);
  
    /* USER CODE BEGIN USART1_MspInit 1 */
  
    /* USER CODE END USART1_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_GPIOD_CLK_ENABLE();
      /**USART3 GPIO Configuration    
      PD8     ------> USART3_TX
      PD9     ------> USART3_RX 
      */
      GPIO_InitStruct.Pin = GPIO_PIN_8|GPIO_PIN_9;
      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==USART1)
    {
    /* USER CODE BEGIN USART1_MspDeInit 0 */
  
    /* USER CODE END USART1_MspDeInit 0 */
      /* Peripheral clock disable */
      __HAL_RCC_USART1_CLK_DISABLE();
    
      /**USART1 GPIO Configuration    
      PB6     ------> USART1_TX
      PB7     ------> USART1_RX 
      */
      HAL_GPIO_DeInit(GPIOB, GPIO_PIN_6|GPIO_PIN_7);
  
    /* USER CODE BEGIN USART1_MspDeInit 1 */
  
    /* USER CODE END USART1_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    
      PD8     ------> USART3_TX
      PD9     ------> USART3_RX 
      */
      HAL_GPIO_DeInit(GPIOD, GPIO_PIN_8|GPIO_PIN_9);
  
    /* 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****/
  