stm32H743 HAL库SPI+DMA一主机多从机数据传输，DMA异常中断的原因？

STM32H743 HAL库 SPI+DMA一主机多从机数据传输，使用HAL_SPI_TransmitReceive_DMA函数，随机性的MOSI返回数据末尾缺一段，导致DMA异常中断，下面是主机和从机SPI部分的配置，有什么错误的地方吗？
主机：
void HAL_SPI_MspInit(SPI_HandleTypeDef *hspi)
{
  GPIO_InitTypeDef  GPIO_InitStruct;

  if (hspi->Instance == SPIx)
  {
/*##-1- Enable peripherals and GPIO Clocks #################################*/
/* Enable GPIO TX/RX clock */
SPIx_SCK_GPIO_CLK_ENABLE();
SPIx_MISO_GPIO_CLK_ENABLE();
SPIx_MOSI_GPIO_CLK_ENABLE();
/* Enable SPI1 clock */
SPIx_CLK_ENABLE();
/* Enable DMA clock */
DMAx_CLK_ENABLE();

/*##-2- Configure peripheral GPIO ##########################################*/
/* SPI SCK GPIO pin configuration  */
GPIO_InitStruct.Pin    = SPIx_SCK_PIN;
GPIO_InitStruct.Mode    = GPIO_MODE_AF_PP;
GPIO_InitStruct.Pull    = GPIO_PULLDOWN;
GPIO_InitStruct.Speed    = GPIO_SPEED_FREQ_VERY_HIGH;
GPIO_InitStruct.Alternate = SPIx_SCK_AF;
HAL_GPIO_Init(SPIx_SCK_GPIO_PORT,  GPIO_InitStruct);


/* SPI MOSI GPIO pin configuration  */
GPIO_InitStruct.Pin = SPIx_MOSI_PIN;
GPIO_InitStruct.Alternate = SPIx_MOSI_AF;
HAL_GPIO_Init(SPIx_MOSI_GPIO_PORT,  GPIO_InitStruct);


/* SPI MISO GPIO pin configuration  */
//                GPIO_InitStruct.Mode    = GPIO_MODE_AF_OD;
GPIO_InitStruct.Pin = SPIx_MISO_PIN;
GPIO_InitStruct.Alternate = SPIx_MISO_AF;
HAL_GPIO_Init(SPIx_MISO_GPIO_PORT,  GPIO_InitStruct);
/*##-3- Configure the DMA ##################################################*/
/*##-3- Configure the DMA ##################################################*/
/* Configure the DMA handler for Transmission process */
hdma_tx.Instance                = SPIx_TX_DMA_STREAM;
hdma_tx.Init.FIFOMode          = DMA_FIFOMODE_DISABLE;
hdma_tx.Init.FIFOThreshold    = DMA_FIFO_THRESHOLD_FULL;
hdma_tx.Init.MemBurst          = DMA_MBURST_INC4;
hdma_tx.Init.PeriphBurst       = DMA_PBURST_INC4;
hdma_tx.Init.Request          = SPIx_TX_DMA_REQUEST;
hdma_tx.Init.Direction          = DMA_MEMORY_TO_PERIPH;
hdma_tx.Init.PeriphInc          = DMA_PINC_DISABLE;
hdma_tx.Init.MemInc             = DMA_MINC_ENABLE;
hdma_tx.Init.PeriphDataAlignment = DMA_PDATAALIGN_BYTE;
hdma_tx.Init.MemDataAlignment = DMA_MDATAALIGN_BYTE;
hdma_tx.Init.Mode             = DMA_NORMAL;
hdma_tx.Init.Priority          = DMA_PRIORITY_LOW;

HAL_DMA_Init( hdma_tx);

/* Associate the initialized DMA handle to the the SPI handle */
__HAL_LINKDMA(hspi, hdmatx, hdma_tx);

/* Configure the DMA handler for Transmission process */
hdma_rx.Instance                = SPIx_RX_DMA_STREAM;

hdma_rx.Init.FIFOMode          = DMA_FIFOMODE_DISABLE;
hdma_rx.Init.FIFOThreshold    = DMA_FIFO_THRESHOLD_FULL;
hdma_rx.Init.MemBurst          = DMA_MBURST_INC4;
hdma_rx.Init.PeriphBurst       = DMA_PBURST_INC4;
hdma_rx.Init.Request          = SPIx_RX_DMA_REQUEST;
hdma_rx.Init.Direction          = DMA_PERIPH_TO_MEMORY;
hdma_rx.Init.PeriphInc          = DMA_PINC_DISABLE;
hdma_rx.Init.MemInc             = DMA_MINC_ENABLE;
hdma_rx.Init.PeriphDataAlignment = DMA_PDATAALIGN_BYTE;
hdma_rx.Init.MemDataAlignment = DMA_MDATAALIGN_BYTE;
hdma_rx.Init.Mode             = DMA_NORMAL;
hdma_rx.Init.Priority          = DMA_PRIORITY_HIGH;

HAL_DMA_Init( hdma_rx);

/* Associate the initialized DMA handle to the the SPI handle */
__HAL_LINKDMA(hspi, hdmarx, hdma_rx);

/*##-4- Configure the NVIC for DMA #########################################*/
/* NVIC configuration for DMA transfer complete interrupt (SPI1_TX) */
HAL_NVIC_SetPriority(SPIx_DMA_TX_IRQn, 6, 0);
HAL_NVIC_EnableIRQ(SPIx_DMA_TX_IRQn);

/* NVIC configuration for DMA transfer complete interrupt (SPI1_RX) */
HAL_NVIC_SetPriority(SPIx_DMA_RX_IRQn, 6, 0);
HAL_NVIC_EnableIRQ(SPIx_DMA_RX_IRQn);

/*##-5- Configure the NVIC for SPI #########################################*/
/* NVIC configuration for SPI transfer complete interrupt (SPI1) */
HAL_NVIC_SetPriority(SPIx_IRQn, 6, 0);
HAL_NVIC_EnableIRQ(SPIx_IRQn);
  }
}

static void BTB_SPIConfig(void)
{

  /*##-1- Configure the SPI peripheral #######################################*/
  /* Set the SPI parameters */
      SpiHandle.Instance             = SPIx;
  SpiHandle.Init.BaudRatePrescaler =SPI_BAUDRATEPRESCALER_32;
  SpiHandle.Init.Direction       = SPI_DIRECTION_2LINES;
  SpiHandle.Init.CLKPhase       = SPI_PHASE_1EDGE;
  SpiHandle.Init.CLKPolarity    = SPI_POLARITY_LOW;
  SpiHandle.Init.DataSize       = SPI_DATASIZE_8BIT;
  SpiHandle.Init.FirstBit       = SPI_FIRSTBIT_MSB;
  SpiHandle.Init.TIMode          = SPI_TIMODE_DISABLE;
  SpiHandle.Init.CRCCalculation = SPI_CRCCALCULATION_DISABLE;
  SpiHandle.Init.CRCPolynomial    = 7;
  SpiHandle.Init.CRCLength       = SPI_CRC_LENGTH_8BIT;
  SpiHandle.Init.NSS             = SPI_NSS_SOFT;
  SpiHandle.Init.NSSPMode       = SPI_NSS_PULSE_DISABLE;
  SpiHandle.Init.MasterKeepIOState = SPI_MASTER_KEEP_IO_STATE_ENABLE;
  SpiHandle.Init.IOSwap=SPI_IO_SWAP_ENABLE;  //引脚画错了，交换下
//       SpiHandle.Init.MasterSSIdleness = SPI_MASTER_SS_IDLENESS_15CYCLE;
  SpiHandle.Init.Mode = SPI_MODE_MASTER;
//  SpiHandle.Init.MasterInterDataIdleness=SPI_MASTER_INTERDATA_IDLENESS_15CYCLE;

  if(HAL_SPI_Init( SpiHandle) != HAL_OK)
  {
/* Initialization Error */
// Error_Handler();
  }
}

从机：
void HAL_SPI_MspInit(SPI_HandleTypeDef *hspi)
{
  GPIO_InitTypeDef  GPIO_InitStruct;

  if (hspi->Instance == SPIx)
  {
/*##-1- Enable peripherals and GPIO Clocks #################################*/
/* Enable GPIO TX/RX clock */
            SPIx_CS_GPIO_CLK_ENABLE();
SPIx_SCK_GPIO_CLK_ENABLE();
SPIx_MISO_GPIO_CLK_ENABLE();
SPIx_MOSI_GPIO_CLK_ENABLE();
/* Enable SPI1 clock */
SPIx_CLK_ENABLE();
/* Enable DMA clock */
DMAx_CLK_ENABLE();

/*##-2- Configure peripheral GPIO ##########################################*/
/* SPI SCK GPIO pin configuration  */
GPIO_InitStruct.Pin    = SPIx_SCK_PIN;
GPIO_InitStruct.Mode    = GPIO_MODE_AF_PP;
GPIO_InitStruct.Pull    = GPIO_PULLDOWN;
GPIO_InitStruct.Speed    = GPIO_SPEED_FREQ_VERY_HIGH;
GPIO_InitStruct.Alternate = SPIx_SCK_AF;
HAL_GPIO_Init(SPIx_SCK_GPIO_PORT,  GPIO_InitStruct);

            /* SPI CS GPIO pin configuration  */
GPIO_InitStruct.Pin = SPIx_CS_PIN;

GPIO_InitStruct.Alternate = SPIx_CS_AF;
HAL_GPIO_Init(SPIx_CS_GPIO_PORT,  GPIO_InitStruct);


/* SPI MOSI GPIO pin configuration  */
GPIO_InitStruct.Pin = SPIx_MOSI_PIN;
GPIO_InitStruct.Alternate = SPIx_MOSI_AF;
HAL_GPIO_Init(SPIx_MOSI_GPIO_PORT,  GPIO_InitStruct);

/* SPI MISO GPIO pin configuration  */
//             GPIO_InitStruct.Mode    = GPIO_MODE_AF_OD; //按照手册从机本该配置成开漏模式，但不知为什么会导致数据为0
GPIO_InitStruct.Pin = SPIx_MISO_PIN;
GPIO_InitStruct.Alternate = SPIx_MISO_AF;
HAL_GPIO_Init(SPIx_MISO_GPIO_PORT,  GPIO_InitStruct);

/*##-3- Configure the DMA ##################################################*/
/*##-3- Configure the DMA ##################################################*/
/* Configure the DMA handler for Transmission process */
hdma_tx.Instance                = SPIx_TX_DMA_STREAM;
hdma_tx.Init.FIFOMode          = DMA_FIFOMODE_DISABLE;
hdma_tx.Init.FIFOThreshold    = DMA_FIFO_THRESHOLD_FULL;
hdma_tx.Init.MemBurst          = DMA_MBURST_INC4;
hdma_tx.Init.PeriphBurst       = DMA_PBURST_INC4;
hdma_tx.Init.Request          = SPIx_TX_DMA_REQUEST;
hdma_tx.Init.Direction          = DMA_MEMORY_TO_PERIPH;
hdma_tx.Init.PeriphInc          = DMA_PINC_DISABLE;
hdma_tx.Init.MemInc             = DMA_MINC_ENABLE;
hdma_tx.Init.PeriphDataAlignment = DMA_PDATAALIGN_BYTE;
hdma_tx.Init.MemDataAlignment = DMA_MDATAALIGN_BYTE;
hdma_tx.Init.Mode             = DMA_NORMAL;
hdma_tx.Init.Priority          = DMA_PRIORITY_LOW;

HAL_DMA_Init( hdma_tx);

/* Associate the initialized DMA handle to the the SPI handle */
__HAL_LINKDMA(hspi, hdmatx, hdma_tx);

/* Configure the DMA handler for Transmission process */
hdma_rx.Instance                = SPIx_RX_DMA_STREAM;

hdma_rx.Init.FIFOMode          = DMA_FIFOMODE_DISABLE;
hdma_rx.Init.FIFOThreshold    = DMA_FIFO_THRESHOLD_FULL;
hdma_rx.Init.MemBurst          = DMA_MBURST_INC4;
hdma_rx.Init.PeriphBurst       = DMA_PBURST_INC4;
hdma_rx.Init.Request          = SPIx_RX_DMA_REQUEST;
hdma_rx.Init.Direction          = DMA_PERIPH_TO_MEMORY;
hdma_rx.Init.PeriphInc          = DMA_PINC_DISABLE;
hdma_rx.Init.MemInc             = DMA_MINC_ENABLE;
hdma_rx.Init.PeriphDataAlignment = DMA_PDATAALIGN_BYTE;
hdma_rx.Init.MemDataAlignment = DMA_MDATAALIGN_BYTE;
hdma_rx.Init.Mode             = DMA_NORMAL;
hdma_rx.Init.Priority          = DMA_PRIORITY_HIGH;

HAL_DMA_Init( hdma_rx);

/* Associate the initialized DMA handle to the the SPI handle */
__HAL_LINKDMA(hspi, hdmarx, hdma_rx);

/*##-4- Configure the NVIC for DMA #########################################*/
/* NVIC configuration for DMA transfer complete interrupt (SPI1_TX) */
HAL_NVIC_SetPriority(SPIx_DMA_TX_IRQn, 6, 0);
HAL_NVIC_EnableIRQ(SPIx_DMA_TX_IRQn);

/* NVIC configuration for DMA transfer complete interrupt (SPI1_RX) */
HAL_NVIC_SetPriority(SPIx_DMA_RX_IRQn, 6, 0);
HAL_NVIC_EnableIRQ(SPIx_DMA_RX_IRQn);

/*##-5- Configure the NVIC for SPI #########################################*/
/* NVIC configuration for SPI transfer complete interrupt (SPI1) */
HAL_NVIC_SetPriority(SPIx_IRQn, 6, 0);
HAL_NVIC_EnableIRQ(SPIx_IRQn);
  }
}

static void BTB_SPIConfig(void)
{

  /*##-1- Configure the SPI peripheral #######################################*/
  /* Set the SPI parameters */
      SpiHandle.Instance             = SPIx;
  SpiHandle.Init.BaudRatePrescaler = SPI_BAUDRATEPRESCALER_8;
  SpiHandle.Init.Direction       = SPI_DIRECTION_2LINES;
  SpiHandle.Init.CLKPhase       = SPI_PHASE_1EDGE;
  SpiHandle.Init.CLKPolarity    = SPI_POLARITY_LOW;
  SpiHandle.Init.DataSize       = SPI_DATASIZE_8BIT;
  SpiHandle.Init.FirstBit       = SPI_FIRSTBIT_MSB;
  SpiHandle.Init.TIMode          = SPI_TIMODE_DISABLE;
  SpiHandle.Init.CRCCalculation = SPI_CRCCALCULATION_DISABLE;
  SpiHandle.Init.CRCPolynomial    = 7;
  SpiHandle.Init.CRCLength       = SPI_CRC_LENGTH_8BIT;
  SpiHandle.Init.NSS             = SPI_NSS_HARD_INPUT;
  SpiHandle.Init.NSSPMode       = SPI_NSS_PULSE_DISABLE;
  SpiHandle.Init.MasterKeepIOState = SPI_MASTER_KEEP_IO_STATE_ENABLE;

      SpiHandle.Init.Mode = SPI_MODE_SLAVE;

  if(HAL_SPI_Init( SpiHandle) != HAL_OK)
  {
/* Initialization Error */
// Error_Handler();
  }
}

王有罕

2024-4-16 10:42:45

如果是DMA传输只是结尾一段有问题，前面的数据没问题那么可以使用SCB_CleanDCache_by_Addr和SCB_InvalidateDCache_by_Addr这两个函数试一试，如果没有数据正确请检查数据缓冲区是否在指定内存里面，然后再检查配置吧

1653339509.516700

2024-4-16 16:34:48

如果数据传输是随机且不完整，可能的原因是DMA传输的长度不正确或者传输的数据没有被完全接收。可以检查以下几点：

1. 确保DMA传输的长度和缓冲区的大小一致，以保证数据完整传输。

2. 检查接收缓冲区是否足够大，以存储全部接收的数据。

3. 在中断处理中，检查DMA传输是否完成，并处理相关中断事件。可以使用HAL_DMA_IRQHandler()函数来处理DMA中断。

另外，还可以尝试增加SPI的时钟速度，以提高数据传输的效率。可以在SPI初始化时设置合适的时钟分频因子。

此外，请确保主机和从机的SPI配置都正确，包括引脚配置、时钟配置等。

刘桂兰

回帖（2）

王有罕

1653339509.516700

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