.. _program_listing_file_mainboard_Src_spi.c:

Program Listing for File spi.c
==============================

|exhale_lsh| :ref:`Return to documentation for file <file_mainboard_Src_spi.c>` (``mainboard/Src/spi.c``)

.. |exhale_lsh| unicode:: U+021B0 .. UPWARDS ARROW WITH TIP LEFTWARDS

.. code-block:: cpp

   
   /* Includes ------------------------------------------------------------------*/
   #include "spi.h"
   
   /* USER CODE BEGIN 0 */
   void spi_enable_cs(SPI_HandleTypeDef *spi, GPIO_TypeDef *gpio, uint16_t pin) {
       HAL_GPIO_WritePin(gpio, pin, GPIO_PIN_RESET);
       while (spi->State != HAL_SPI_STATE_READY)
           ;
   }
   
   void spi_disable_cs(SPI_HandleTypeDef *spi, GPIO_TypeDef *gpio, uint16_t pin) {
       while (spi->State != HAL_SPI_STATE_READY)
           ;
       HAL_GPIO_WritePin(gpio, pin, GPIO_PIN_SET);
   }
   /* USER CODE END 0 */
   
   SPI_HandleTypeDef hspi2;
   
   /* 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_SOFT;
     hspi2.Init.BaudRatePrescaler = SPI_BAUDRATEPRESCALER_64;
     hspi2.Init.FirstBit = SPI_FIRSTBIT_MSB;
     hspi2.Init.TIMode = SPI_TIMODE_DISABLE;
     hspi2.Init.CRCCalculation = SPI_CRCCALCULATION_DISABLE;
     hspi2.Init.CRCPolynomial = 10;
     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();
       GPIO_InitStruct.Pin = GPIO_PIN_13|GPIO_PIN_14|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);
   
     /* 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();
   
       HAL_GPIO_DeInit(GPIOB, GPIO_PIN_13|GPIO_PIN_14|GPIO_PIN_15);
   
     /* 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****/