text: /**
    ******************************************************************************
    * File Name          : SPI.c
    * Description        : This file provides code for the configuration
    *                      of the SPI instances.
    ******************************************************************************
    * @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
    *
    ******************************************************************************
    */
  
  /* Includes ------------------------------------------------------------------*/
  #include "spi.h"
  
  /* USER CODE BEGIN 0 */
  
  /* USER CODE END 0 */
  
  SPI_HandleTypeDef hspi2;
  
  /* SPI2 init function */
  void MX_SPI2_Init(void)
  {
  
    hspi2.Instance = SPI2;
    hspi2.Init.Mode = SPI_MODE_MASTER;
    hspi2.Init.Direction = SPI_DIRECTION_2LINES;
    hspi2.Init.DataSize = SPI_DATASIZE_4BIT;
    hspi2.Init.CLKPolarity = SPI_POLARITY_LOW;
    hspi2.Init.CLKPhase = SPI_PHASE_1EDGE;
    hspi2.Init.NSS = SPI_NSS_HARD_INPUT;
    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();
    }
  
  }
  
  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_GPIOA_CLK_ENABLE();
      __HAL_RCC_GPIOB_CLK_ENABLE();
      /**SPI2 GPIO Configuration
      PA12     ------> SPI2_SCK
      PA11     ------> SPI2_NSS
      PB14     ------> SPI2_MISO
      PB15     ------> SPI2_MOSI
      */
      GPIO_InitStruct.Pin = ARD_D13_SCK_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_SPI2;
      HAL_GPIO_Init(ARD_D13_SCK_GPIO_Port, &GPIO_InitStruct);
  
      GPIO_InitStruct.Pin = SPI2_NSS_Pin;
      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(SPI2_NSS_GPIO_Port, &GPIO_InitStruct);
  
      GPIO_InitStruct.Pin = ARDUINO_MISO_D12_Pin|ARDUINO_MOSI_PWM_D11_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_SPI2;
      HAL_GPIO_Init(GPIOB, &GPIO_InitStruct);
  
    /* 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
      PA12     ------> SPI2_SCK
      PA11     ------> SPI2_NSS
      PB14     ------> SPI2_MISO
      PB15     ------> SPI2_MOSI
      */
      HAL_GPIO_DeInit(GPIOA, ARD_D13_SCK_Pin|SPI2_NSS_Pin);
  
      HAL_GPIO_DeInit(GPIOB, ARDUINO_MISO_D12_Pin|ARDUINO_MOSI_PWM_D11_Pin);
  
    /* 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****/
  