SPI_Exported_Functions_Group1

Collaboration diagram for SPI_Exported_Functions_Group1:

Functions
HAL_StatusTypeDef	HAL_SPI_Init (SPI_HandleTypeDef *hspi)
HAL_StatusTypeDef	HAL_SPI_DeInit (SPI_HandleTypeDef *hspi)
void	HAL_SPI_MspInit (SPI_HandleTypeDef *hspi)
	SPI MSP Initialization This function configures the hardware resources used in this example. More...
void	HAL_SPI_MspDeInit (SPI_HandleTypeDef *hspi)
	SPI MSP De-Initialization This function freeze the hardware resources used in this example. More...

Detailed Description

Function Documentation

HAL_SPI_Init()

HAL_StatusTypeDef HAL_SPI_Init

(

SPI_HandleTypeDef *

hspi

)

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HAL_SPI_DeInit()

HAL_StatusTypeDef HAL_SPI_DeInit

(

SPI_HandleTypeDef *

hspi

)

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HAL_SPI_MspInit()

void HAL_SPI_MspInit

(

SPI_HandleTypeDef *

hspi

)

SPI MSP Initialization This function configures the hardware resources used in this example.

Parameters

hspi	SPI handle pointer

Return values

None

SPI2 GPIO Configuration PC2 ---—> SPI2_MISO PC3 ---—> SPI2_MOSI PB10 ---—> SPI2_SCK

SPI3 GPIO Configuration PC10 ---—> SPI3_SCK PC11 ---—> SPI3_MISO PC12 ---—> SPI3_MOSI

                                              {
 
    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_GPIOC_CLK_ENABLE();
        __HAL_RCC_GPIOB_CLK_ENABLE();
        /**SPI2 GPIO Configuration
    PC2     ------> SPI2_MISO
    PC3     ------> SPI2_MOSI
    PB10     ------> SPI2_SCK
    */
        GPIO_InitStruct.Pin = GPIO_PIN_2 | GPIO_PIN_3;
        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(GPIOC, &GPIO_InitStruct);
 
        GPIO_InitStruct.Pin = GPIO_PIN_10;
        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_Stream4;
        hdma_spi2_tx.Init.Channel = DMA_CHANNEL_0;
        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_MEDIUM;
        hdma_spi2_tx.Init.FIFOMode = DMA_FIFOMODE_DISABLE;
        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 */
    } else 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 = FLASH_SCK_Pin | FLASH_MISO_Pin | FLASH_MOSI_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_AF6_SPI3;
        HAL_GPIO_Init(GPIOC, &GPIO_InitStruct);
 
        /* USER CODE BEGIN SPI3_MspInit 1 */
 
        /* USER CODE END SPI3_MspInit 1 */
    }
}

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HAL_SPI_MspDeInit()

void HAL_SPI_MspDeInit

(

SPI_HandleTypeDef *

hspi

)

SPI MSP De-Initialization This function freeze the hardware resources used in this example.

Parameters

hspi	SPI handle pointer

Return values

None

SPI2 GPIO Configuration PC2 ---—> SPI2_MISO PC3 ---—> SPI2_MOSI PB10 ---—> SPI2_SCK

SPI3 GPIO Configuration PC10 ---—> SPI3_SCK PC11 ---—> SPI3_MISO PC12 ---—> SPI3_MOSI

                                                {
 
    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
    PC2     ------> SPI2_MISO
    PC3     ------> SPI2_MOSI
    PB10     ------> SPI2_SCK
    */
        HAL_GPIO_DeInit(GPIOC, GPIO_PIN_2 | GPIO_PIN_3);
 
        HAL_GPIO_DeInit(GPIOB, GPIO_PIN_10);
 
        /* SPI2 DMA DeInit */
        HAL_DMA_DeInit(hspi->hdmatx);
        /* USER CODE BEGIN SPI2_MspDeInit 1 */
 
        /* USER CODE END SPI2_MspDeInit 1 */
    } else 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, FLASH_SCK_Pin | FLASH_MISO_Pin | FLASH_MOSI_Pin);
 
        /* USER CODE BEGIN SPI3_MspDeInit 1 */
 
        /* USER CODE END SPI3_MspDeInit 1 */
    }
}

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