对于STM32F407，请使用HAL库编写SPI2的DMA数据传输

好的，以下是使用HAL库编写SPI2的DMA数据传输的示例代码：

#include "stm32f4xx_hal.h"

SPI_HandleTypeDef hspi2;
DMA_HandleTypeDef hdma_spi2_rx;

uint8_t rx_buffer[10];

void MX_SPI2_Init(void)
{
  /* SPI2 parameter configuration*/
  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_256;
  hspi2.Init.FirstBit = SPI_FIRSTBIT_MSB;
  hspi2.Init.TIMode = SPI_TIMODE_DISABLE;
  hspi2.Init.CRCCalculation = SPI_CRCCALCULATION_DISABLE;
  hspi2.Init.CRCPolynomial = 7;
  if (HAL_SPI_Init(&hspi2) != HAL_OK)
  {
    Error_Handler();
  }
}

void MX_DMA_Init(void)
{
  /* DMA controller clock enable */
  __HAL_RCC_DMA1_CLK_ENABLE();

  /* DMA interrupt init */
  /* DMA1_Stream3_IRQn interrupt configuration */
  HAL_NVIC_SetPriority(DMA1_Stream3_IRQn, 0, 0);
  HAL_NVIC_EnableIRQ(DMA1_Stream3_IRQn);

}

static void MX_GPIO_Init(void)
{
  GPIO_InitTypeDef GPIO_InitStruct = {0};

  /* GPIO Ports Clock Enable */
  __HAL_RCC_GPIOA_CLK_ENABLE();
  __HAL_RCC_GPIOB_CLK_ENABLE();
  __HAL_RCC_GPIOC_CLK_ENABLE();

  /*Configure GPIO pin : PB12 */
  GPIO_InitStruct.Pin = GPIO_PIN_12;
  GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;
  GPIO_InitStruct.Pull = GPIO_NOPULL;
  GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
  HAL_GPIO_Init(GPIOB, &GPIO_InitStruct);

  /*Configure GPIO pin : PC2 */
  GPIO_InitStruct.Pin = GPIO_PIN_2;
  GPIO_InitStruct.Mode = GPIO_MODE_INPUT;
  GPIO_InitStruct.Pull = GPIO_NOPULL;
  HAL_GPIO_Init(GPIOC, &GPIO_InitStruct);

}

void HAL_SPI_MspInit(SPI_HandleTypeDef* spiHandle)
{

  GPIO_InitTypeDef GPIO_InitStruct = {0};
  if(spiHandle->Instance==SPI2)
  {
    /* SPI2 clock enable */
    __HAL_RCC_SPI2_CLK_ENABLE();

    __HAL_RCC_GPIOB_CLK_ENABLE();
    /**SPI2 GPIO Configuration    
    PB13     ------> SPI2_SCK
    PB14     ------> SPI2_MISO
    PB15     ------> SPI2_MOSI 
    */
    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);

    /* SPI2 DMA Init */
    /* SPI2_RX Init */
    hdma_spi2_rx.Instance = DMA1_Stream3;
    hdma_spi2_rx.Init.Channel = DMA_CHANNEL_0;
    hdma_spi2_rx.Init.Direction = DMA_PERIPH_TO_MEMORY;
    hdma_spi2_rx.Init.PeriphInc = DMA_PINC_DISABLE;
    hdma_spi2_rx.Init.MemInc = DMA_MINC_ENABLE;
    hdma_spi2_rx.Init.PeriphDataAlignment = DMA_PDATAALIGN_BYTE;
    hdma_spi2_rx.Init.MemDataAlignment = DMA_MDATAALIGN_BYTE;
    hdma_spi2_rx.Init.Mode = DMA_NORMAL;
    hdma_spi2_rx.Init.Priority = DMA_PRIORITY_LOW;
    hdma_spi2_rx.Init.FIFOMode = DMA_FIFOMODE_DISABLE;
    if (HAL_DMA_Init(&hdma_spi2_rx) != HAL_OK)
    {
      Error_Handler();
    }

    __HAL_LINKDMA(spiHandle,hdmarx,hdma_spi2_rx);

    /* SPI2 interrupt Init */
    HAL_NVIC_SetPriority(SPI2_IRQn, 0, 0);
    HAL_NVIC_EnableIRQ(SPI2_IRQn);
  }
}

void HAL_SPI_MspDeInit(SPI_HandleTypeDef* spiHandle)
{

  if(spiHandle->Instance==SPI2)
  {
    /* Peripheral clock disable */
    __HAL_RCC_SPI2_CLK_DISABLE();

    /**SPI2 GPIO Configuration    
    PB13     ------> SPI2_SCK
    PB14     ------> SPI2_MISO
    PB15     ------> SPI2_MOSI 
    */
    HAL_GPIO_DeInit(GPIOB, GPIO_PIN_13|GPIO_PIN_14|GPIO_PIN_15);

    /* SPI2 DMA DeInit */
    HAL_DMA_DeInit(spiHandle->hdmarx);

    /* SPI2 interrupt Deinit */
    HAL_NVIC_DisableIRQ(SPI2_IRQn);
  }
}

void HAL_SPI_RxCpltCallback(SPI_HandleTypeDef *hspi)
{
  if(hspi->Instance == SPI2)
  {
    // DMA transfer completed
  }
}

void HAL_SPI_ErrorCallback(SPI_HandleTypeDef *hspi)
{
  if(hspi->Instance == SPI2)
  {
    // SPI error occurred
  }
}

int main(void)
{
  HAL_Init();
  SystemClock_Config();
  MX_GPIO_Init();
  MX_DMA_Init();
  MX_SPI2_Init();

  while (1)
  {
    HAL_GPIO_WritePin(GPIOB, GPIO_PIN_12, GPIO_PIN_RESET);

    if (HAL_SPI_Receive_DMA(&hspi2, rx_buffer, 10) != HAL_OK)
    {
      Error_Handler();
    }

    while (HAL_SPI_GetState(&hspi2) != HAL_SPI_STATE_READY);

    HAL_GPIO_WritePin(GPIOB, GPIO_PIN_12, GPIO_PIN_SET);

    HAL_Delay(1000);
  }
}

在该示例代码中，我们使用了SPI2和DMA1，其中SPI2的时钟频率为168MHz/256=656.25kHz。在主函数中，我们循环执行SPI接收DMA传输，将接收到的数据存储在rx_buffer数组中。在SPI的初始化中，我们配置了SPI的工作模式、数据大小、时钟极性、时钟相位等参数，以及使用软件NSS信号。在DMA的初始化中，我们配置了DMA的通道、方向、数据对齐方式等参数。在SPI接收DMA传输完成后，我们可以在HAL_SPI_RxCpltCallback()回调函数中处理接收到的数据，在HAL_SPI_ErrorCallback()回调函数中处理SPI传输错误。