HAL_SPI_TransmitReceive_DMA程序一直复位

yllqabz 提问时间：2019-2-28 11:37 /

问答
是否解决:

int main(void)
{
  /* USER CODE BEGIN 1 */

  /* USER CODE END 1 */

  /* MCU Configuration----------------------------------------------------------*/

  /* Reset of all peripherals, Initializes the Flash interface and the Systick. */
  HAL_Init();

  /* Configure the system clock */
  SystemClock_Config();

  /* Initialize all configured peripherals */
  MX_GPIO_Init();
  MX_DMA_Init();
  MX_ADC1_Init();
  MX_IWDG_Init();
  MX_SPI2_Init();
  MX_TIM1_Init();
  MX_TIM2_Init();
  MX_USART1_UART_Init();

  /* USER CODE BEGIN 2 */
  HAL_IWDG_Start(&hiwdg);

  GpioInit();

  HAL_ADCEx_Calibration_Start(&hadc1);
  HAL_ADC_Start_DMA(&hadc1, (uint32_t*)&ADC_Value, AD_COUNT);
  HAL_ADC_Start(&hadc1);

  HAL_TIMEx_OCN_Start_IT(&htim1, TIM_CHANNEL_3);
  TIM1->CCR3 = 900;

  HAL_TIM_PWM_Start(&htim1, TIM_CHANNEL_1);
  HAL_TIM_PWM_Start(&htim1, TIM_CHANNEL_2);
  HAL_TIM_PWM_Start(&htim1, TIM_CHANNEL_3);

  HAL_SPI_TransmitReceive_DMA(&hspi2, (uint8_t*)&spi_tx_buf, (uint8_t*)&spi_rx_buf, 4);
}

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_16BIT;
  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 = 10;
  if (HAL_SPI_Init(&hspi2) != HAL_OK)
  {
Error_Handler();
  }
}

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
PB14    ------> SPI2_MISO
PB15    ------> SPI2_MOSI
*/
HAL_GPIO_DeInit(GPIOB, GPIO_PIN_12|GPIO_PIN_13|GPIO_PIN_14|GPIO_PIN_15);

/* Peripheral DMA DeInit*/
HAL_DMA_DeInit(spiHandle->hdmarx);
HAL_DMA_DeInit(spiHandle->hdmatx);
  }
  /* USER CODE BEGIN SPI2_MspDeInit 1 */

  /* USER CODE END SPI2_MspDeInit 1 */
}

void HAL_SPI_MspInit(SPI_HandleTypeDef* spiHandle)
{

  GPIO_InitTypeDef GPIO_InitStruct;
  if(spiHandle->Instance==SPI2)
  {
  /* USER CODE BEGIN SPI2_MspInit 0 */

  /* USER CODE END SPI2_MspInit 0 */
/* Peripheral clock enable */
__HAL_RCC_SPI2_CLK_ENABLE();

/**SPI2 GPIO Configuration
PB12    ------> SPI2_NSS
PB13    ------> SPI2_SCK
PB14    ------> SPI2_MISO
PB15    ------> SPI2_MOSI
*/
GPIO_InitStruct.Pin = GPIO_PIN_12|GPIO_PIN_13|GPIO_PIN_15;
GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_HIGH;
HAL_GPIO_Init(GPIOB, &GPIO_InitStruct);

GPIO_InitStruct.Pin = GPIO_PIN_14;
GPIO_InitStruct.Mode = GPIO_MODE_INPUT;
GPIO_InitStruct.Pull = GPIO_NOPULL;
HAL_GPIO_Init(GPIOB, &GPIO_InitStruct);

hdma_spi2_rx.Instance = DMA1_Channel4;
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_HALFWORD;
hdma_spi2_rx.Init.MemDataAlignment = DMA_MDATAALIGN_HALFWORD;
hdma_spi2_rx.Init.Mode = DMA_CIRCULAR;
hdma_spi2_rx.Init.Priority = DMA_PRIORITY_LOW;
if (HAL_DMA_Init(&hdma_spi2_rx) != HAL_OK)
{
   Error_Handler();
}

__HAL_LINKDMA(spiHandle,hdmarx,hdma_spi2_rx);

hdma_spi2_tx.Instance = DMA1_Channel5;
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_HALFWORD;
hdma_spi2_tx.Init.MemDataAlignment = DMA_MDATAALIGN_HALFWORD;
hdma_spi2_tx.Init.Mode = DMA_CIRCULAR;
hdma_spi2_tx.Init.Priority = DMA_PRIORITY_LOW;
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 */
  }
}

想实现SPI使用DMA全双工通信，但是一开启HAL_SPI_TransmitReceive_DMA程序就会一直复位，无法正常运行，找了很久原因都没有找到！不知道有人遇到过同样的问题吗？