text: /**
    ******************************************************************************
    * @file    spi.c
    * @brief   This file provides code for the configuration
    *          of the SPI instances.
    ******************************************************************************
    * @attention
    *
    * <h2><center>&copy; Copyright (c) 2021 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
    *
    ******************************************************************************
    */
  
  /* Includes ------------------------------------------------------------------*/
  #include "spi.h"
  
  /* USER CODE BEGIN 0 */
  
  /* USER CODE END 0 */
  
  SPI_HandleTypeDef hspi2;
  DMA_HandleTypeDef hdma_spi2_tx;
  
  /* SPI2 init function */
  void MX_SPI2_Init(void)
  {
  
    /* USER CODE BEGIN SPI2_Init 0 */
  
    /* USER CODE END SPI2_Init 0 */
  
    /* USER CODE BEGIN SPI2_Init 1 */
  
    /* USER CODE END SPI2_Init 1 */
    hspi2.Instance = SPI2;
    hspi2.Init.Mode = SPI_MODE_MASTER;
    hspi2.Init.Direction = SPI_DIRECTION_2LINES;
    hspi2.Init.DataSize = SPI_DATASIZE_8BIT;
    hspi2.Init.CLKPolarity = SPI_POLARITY_LOW;
    hspi2.Init.CLKPhase = SPI_PHASE_1EDGE;
    hspi2.Init.NSS = SPI_NSS_HARD_OUTPUT;
    hspi2.Init.BaudRatePrescaler = SPI_BAUDRATEPRESCALER_2;
    hspi2.Init.FirstBit = SPI_FIRSTBIT_MSB;
    hspi2.Init.TIMode = SPI_TIMODE_DISABLE;
    hspi2.Init.CRCCalculation = SPI_CRCCALCULATION_DISABLE;
    hspi2.Init.CRCPolynomial = 7;
    hspi2.Init.CRCLength = SPI_CRC_LENGTH_DATASIZE;
    hspi2.Init.NSSPMode = SPI_NSS_PULSE_ENABLE;
    if (HAL_SPI_Init(&hspi2) != HAL_OK)
    {
      Error_Handler();
    }
    /* USER CODE BEGIN SPI2_Init 2 */
  
    /* USER CODE END SPI2_Init 2 */
  
  }
  
  void HAL_SPI_MspInit(SPI_HandleTypeDef* spiHandle)
  {
  
    GPIO_InitTypeDef GPIO_InitStruct = {0};
    if(spiHandle->Instance==SPI2)
    {
    /* USER CODE BEGIN SPI2_MspInit 0 */
  
    /* USER CODE END SPI2_MspInit 0 */
      /* SPI2 clock enable */
      __HAL_RCC_SPI2_CLK_ENABLE();
  
      __HAL_RCC_GPIOB_CLK_ENABLE();
      /**SPI2 GPIO Configuration
      PB12     ------> SPI2_NSS
      PB13     ------> SPI2_SCK
      PB15     ------> SPI2_MOSI
      */
      GPIO_InitStruct.Pin = GPIO_PIN_12|GPIO_PIN_13|GPIO_PIN_15;
      GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
      GPIO_InitStruct.Pull = GPIO_NOPULL;
      GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_VERY_HIGH;
      GPIO_InitStruct.Alternate = GPIO_AF5_SPI2;
      HAL_GPIO_Init(GPIOB, &GPIO_InitStruct);
  
      /* SPI2 DMA Init */
      /* SPI2_TX Init */
      hdma_spi2_tx.Instance = DMA1_Channel5;
      hdma_spi2_tx.Init.Request = DMA_REQUEST_1;
      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_HIGH;
      if (HAL_DMA_Init(&hdma_spi2_tx) != HAL_OK)
      {
        Error_Handler();
      }
  
      __HAL_LINKDMA(spiHandle,hdmatx,hdma_spi2_tx);
  
    /* USER CODE BEGIN SPI2_MspInit 1 */
  
    /* USER CODE END SPI2_MspInit 1 */
    }
  }
  
  void HAL_SPI_MspDeInit(SPI_HandleTypeDef* spiHandle)
  {
  
    if(spiHandle->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
      PB12     ------> SPI2_NSS
      PB13     ------> SPI2_SCK
      PB15     ------> SPI2_MOSI
      */
      HAL_GPIO_DeInit(GPIOB, GPIO_PIN_12|GPIO_PIN_13|GPIO_PIN_15);
  
      /* SPI2 DMA DeInit */
      HAL_DMA_DeInit(spiHandle->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****/
  