text: /* USER CODE BEGIN Header */
  /**
    ******************************************************************************
    * File Name          : stm32g0xx_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 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_i2c2_rx;
  
  extern DMA_HandleTypeDef hdma_i2c2_tx;
  
  extern DMA_HandleTypeDef hdma_spi2_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*/
  
    /* USER CODE BEGIN MspInit 1 */
  
    /* USER CODE END MspInit 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==I2C2)
    {
    /* USER CODE BEGIN I2C2_MspInit 0 */
  
    /* USER CODE END I2C2_MspInit 0 */
  
      __HAL_RCC_GPIOA_CLK_ENABLE();
      /**I2C2 GPIO Configuration
      PA11 [PA9]     ------> I2C2_SCL
      PA12 [PA10]     ------> I2C2_SDA
      */
      GPIO_InitStruct.Pin = GPIO_PIN_11|GPIO_PIN_12;
      GPIO_InitStruct.Mode = GPIO_MODE_AF_OD;
      GPIO_InitStruct.Pull = GPIO_PULLUP;
      GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
      GPIO_InitStruct.Alternate = GPIO_AF6_I2C2;
      HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);
  
      /* Peripheral clock enable */
      __HAL_RCC_I2C2_CLK_ENABLE();
  
      /* I2C2 DMA Init */
      /* I2C2_RX Init */
      hdma_i2c2_rx.Instance = DMA1_Channel2;
      hdma_i2c2_rx.Init.Request = DMA_REQUEST_I2C2_RX;
      hdma_i2c2_rx.Init.Direction = DMA_PERIPH_TO_MEMORY;
      hdma_i2c2_rx.Init.PeriphInc = DMA_PINC_DISABLE;
      hdma_i2c2_rx.Init.MemInc = DMA_MINC_ENABLE;
      hdma_i2c2_rx.Init.PeriphDataAlignment = DMA_PDATAALIGN_BYTE;
      hdma_i2c2_rx.Init.MemDataAlignment = DMA_MDATAALIGN_BYTE;
      hdma_i2c2_rx.Init.Mode = DMA_NORMAL;
      hdma_i2c2_rx.Init.Priority = DMA_PRIORITY_LOW;
      if (HAL_DMA_Init(&hdma_i2c2_rx) != HAL_OK)
      {
        Error_Handler();
      }
  
      __HAL_LINKDMA(hi2c,hdmarx,hdma_i2c2_rx);
  
      /* I2C2_TX Init */
      hdma_i2c2_tx.Instance = DMA1_Channel3;
      hdma_i2c2_tx.Init.Request = DMA_REQUEST_I2C2_TX;
      hdma_i2c2_tx.Init.Direction = DMA_MEMORY_TO_PERIPH;
      hdma_i2c2_tx.Init.PeriphInc = DMA_PINC_DISABLE;
      hdma_i2c2_tx.Init.MemInc = DMA_MINC_ENABLE;
      hdma_i2c2_tx.Init.PeriphDataAlignment = DMA_PDATAALIGN_BYTE;
      hdma_i2c2_tx.Init.MemDataAlignment = DMA_MDATAALIGN_BYTE;
      hdma_i2c2_tx.Init.Mode = DMA_NORMAL;
      hdma_i2c2_tx.Init.Priority = DMA_PRIORITY_LOW;
      if (HAL_DMA_Init(&hdma_i2c2_tx) != HAL_OK)
      {
        Error_Handler();
      }
  
      __HAL_LINKDMA(hi2c,hdmatx,hdma_i2c2_tx);
  
    /* USER CODE BEGIN I2C2_MspInit 1 */
  
    /* USER CODE END I2C2_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==I2C2)
    {
    /* USER CODE BEGIN I2C2_MspDeInit 0 */
  
    /* USER CODE END I2C2_MspDeInit 0 */
      /* Peripheral clock disable */
      __HAL_RCC_I2C2_CLK_DISABLE();
  
      /**I2C2 GPIO Configuration
      PA11 [PA9]     ------> I2C2_SCL
      PA12 [PA10]     ------> I2C2_SDA
      */
      HAL_GPIO_DeInit(GPIOA, GPIO_PIN_11);
  
      HAL_GPIO_DeInit(GPIOA, GPIO_PIN_12);
  
      /* I2C2 DMA DeInit */
      HAL_DMA_DeInit(hi2c->hdmarx);
      HAL_DMA_DeInit(hi2c->hdmatx);
    /* USER CODE BEGIN I2C2_MspDeInit 1 */
  
    /* USER CODE END I2C2_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==SPI2)
    {
    /* USER CODE BEGIN SPI2_MspInit 0 */
  
    /* USER CODE END SPI2_MspInit 0 */
      /* Peripheral clock enable */
      __HAL_RCC_SPI2_CLK_ENABLE();
  
      __HAL_RCC_GPIOB_CLK_ENABLE();
      __HAL_RCC_GPIOA_CLK_ENABLE();
      /**SPI2 GPIO Configuration
      PB7     ------> SPI2_MOSI
      PA0     ------> SPI2_SCK
      */
      GPIO_InitStruct.Pin = GPIO_PIN_7;
      GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
      GPIO_InitStruct.Pull = GPIO_NOPULL;
      GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
      GPIO_InitStruct.Alternate = GPIO_AF1_SPI2;
      HAL_GPIO_Init(GPIOB, &GPIO_InitStruct);
  
      GPIO_InitStruct.Pin = GPIO_PIN_0;
      GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
      GPIO_InitStruct.Pull = GPIO_NOPULL;
      GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
      GPIO_InitStruct.Alternate = GPIO_AF0_SPI2;
      HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);
  
      /* SPI2 DMA Init */
      /* SPI2_TX Init */
      hdma_spi2_tx.Instance = DMA1_Channel1;
      hdma_spi2_tx.Init.Request = DMA_REQUEST_SPI2_TX;
      hdma_spi2_tx.Init.Direction = DMA_MEMORY_TO_PERIPH;
      hdma_spi2_tx.Init.PeriphInc = DMA_PINC_DISABLE;
      hdma_spi2_tx.Init.MemInc = DMA_MINC_ENABLE;
      hdma_spi2_tx.Init.PeriphDataAlignment = DMA_PDATAALIGN_BYTE;
      hdma_spi2_tx.Init.MemDataAlignment = DMA_MDATAALIGN_BYTE;
      hdma_spi2_tx.Init.Mode = DMA_NORMAL;
      hdma_spi2_tx.Init.Priority = DMA_PRIORITY_LOW;
      if (HAL_DMA_Init(&hdma_spi2_tx) != HAL_OK)
      {
        Error_Handler();
      }
  
      __HAL_LINKDMA(hspi,hdmatx,hdma_spi2_tx);
  
    /* USER CODE BEGIN SPI2_MspInit 1 */
  
  
    /* USER CODE END SPI2_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==SPI2)
    {
    /* USER CODE BEGIN SPI2_MspDeInit 0 */
  
    /* USER CODE END SPI2_MspDeInit 0 */
      /* Peripheral clock disable */
      __HAL_RCC_SPI2_CLK_DISABLE();
  
      /**SPI2 GPIO Configuration
      PB7     ------> SPI2_MOSI
      PA0     ------> SPI2_SCK
      */
      HAL_GPIO_DeInit(GPIOB, GPIO_PIN_7);
  
      HAL_GPIO_DeInit(GPIOA, GPIO_PIN_0);
  
      /* SPI2 DMA DeInit */
      HAL_DMA_DeInit(hspi->hdmatx);
    /* USER CODE BEGIN SPI2_MspDeInit 1 */
  
    /* USER CODE END SPI2_MspDeInit 1 */
    }
  
  }
  
  /* USER CODE BEGIN 1 */
  
  /* USER CODE END 1 */
  
  /************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
  