在STM32F4上面SPI2 DMA 接受不到数据

xiaowang11 提问时间：2018-12-3 16:26 /

大家好，我最近遇到一个问题，SPI2 DMA 接受不到数据，不知道哪里遇到了问题，向大神们请教一下。比较急，谢谢！
下面是我的代码：
DCMI 通过DMA给 SPI发数据，DCMI有数据发出，且数据正确。但是SPI没有接受到数据，且LCD没有显示摄像头端的数据（spi2驱动LCD是ok的）。
DCMI端代码：这是ok的通过FSMC验证过。
      DMA_InitTypeDef  DMA_InitStructure;
      NVIC_InitTypeDef NVIC_InitStructure;
      //spi tx -> DMA_Channel_3
  RCC_AHB1PeriphClockCmd(RCC_AHB1Periph_DMA2,ENABLE);
      DMA_DeInit(DMA2_Stream1);//µÈ´ýDMA2_Stream1
      while (DMA_GetCmdStatus(DMA2_Stream1) != DISABLE){}

  DMA_InitStructure.DMA_Channel = DMA_Channel_1;  //Í¨µÀ1 DCMIÍ¨µÀ
  DMA_InitStructure.DMA_PeripheralBaseAddr = (u32)&DCMI->DR;
  DMA_InitStructure.DMA_Memory0BaseAddr = (u32)&SPI2->DR;
      DMA_InitStructure.DMA_DIR = DMA_DIR_PeripheralToMemory;
  DMA_InitStructure.DMA_BufferSize = DMA_BufferSize;
  DMA_InitStructure.DMA_PeripheralInc = DMA_PeripheralInc_Disable;
  DMA_InitStructure.DMA_MemoryInc = DMA_MemoryInc;
  DMA_InitStructure.DMA_PeripheralDataSize = DMA_PeripheralDataSize_Word;
  DMA_InitStructure.DMA_MemoryDataSize = DMA_MemoryDataSize;
  DMA_InitStructure.DMA_Mode = DMA_Mode_Circular;
  DMA_InitStructure.DMA_Priority = DMA_Priority_High;
  DMA_InitStructure.DMA_FIFOMode = DMA_FIFOMode_Enable;
  DMA_InitStructure.DMA_FIFOThreshold = DMA_FIFOThreshold_Full;
  DMA_InitStructure.DMA_MemoryBurst = DMA_MemoryBurst_Single;
  DMA_InitStructure.DMA_PeripheralBurst = DMA_PeripheralBurst_Single;
  DMA_Init(DMA2_Stream1, &DMA_InitStructure);

SPI DMA端配置代码：
void SPI2_DMAInit (void)
{
DMA_InitTypeDef DMA_InitStructure;

RCC_AHB1PeriphClockCmd(RCC_AHB1Periph_DMA1, ENABLE);

DMA_DeInit(DMA1_Stream3);
DMA_DeInit(DMA1_Stream4);
            while (DMA_GetCmdStatus(DMA1_Stream3) != DISABLE){printf("-");}

DMA_InitStructure.DMA_Channel  = DMA_Channel_0;
DMA_InitStructure.DMA_PeripheralBaseAddr = (uint32_t)(&(SPI2->DR));
DMA_InitStructure.DMA_Memory0BaseAddr = (uint32_t)SPI_RXBUFFER;
DMA_InitStructure.DMA_DIR = DMA_DIR_PeripheralToMemory;
DMA_InitStructure.DMA_BufferSize = 1;
DMA_InitStructure.DMA_PeripheralInc = DMA_PeripheralInc_Disable;
DMA_InitStructure.DMA_MemoryInc = DMA_MemoryInc_Enable;
DMA_InitStructure.DMA_PeripheralDataSize = DMA_PeripheralDataSize_Word;
DMA_InitStructure.DMA_MemoryDataSize = DMA_MemoryDataSize_HalfWord;
DMA_InitStructure.DMA_Mode = DMA_Mode_Circular;
DMA_InitStructure.DMA_Priority = DMA_Priority_High;
DMA_InitStructure.DMA_FIFOMode = DMA_FIFOMode_Disable;
DMA_InitStructure.DMA_FIFOThreshold = DMA_FIFOThreshold_Full;
DMA_InitStructure.DMA_MemoryBurst = DMA_MemoryBurst_Single;
DMA_InitStructure.DMA_PeripheralBurst = DMA_PeripheralBurst_Single;
DMA_Init(DMA1_Stream3, &DMA_InitStructure);

// DMA_InitStructure.DMA_Memory0BaseAddr = (uint32_t)SPI_TXBUFFER;    //
// DMA_InitStructure.DMA_DIR = DMA_DIR_MemoryToPeripheral;
// DMA_InitStructure.DMA_BufferSize = 8;                            //
// DMA_InitStructure.DMA_Priority = DMA_Priority_Low;
// DMA_Init(DMA1_Stream4, &DMA_InitStructure);

SPI_I2S_DMACmd(SPI2, SPI_I2S_DMAReq_Tx, ENABLE);
SPI_I2S_DMACmd(SPI2, SPI_I2S_DMAReq_Rx, ENABLE);

DMA_ITConfig(DMA1_Stream3, DMA_IT_TC | DMA_IT_TE, ENABLE);
DMA_ITConfig(DMA1_Stream4, DMA_IT_TC | DMA_IT_TE, ENABLE);

NVIC_InitTypeDef  NVIC_InitStructure;
NVIC_InitStructure.NVIC_IRQChannel = DMA1_Stream3_IRQn;
NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 0;
NVIC_InitStructure.NVIC_IRQChannelSubPriority = 0;
NVIC_InitStructure.NVIC_IRQChannel =ENABLE;
NVIC_Init(&NVIC_InitStructure);

DMA_Cmd(DMA1_Stream3, ENABLE);
DMA_Cmd(DMA1_Stream4, ENABLE);
            printf("DMA 000 \n");
}

void DMA1_Stream3_IRQHandler (void)
{
if (DMA_GetITStatus(DMA1_Stream3, DMA_IT_TCIF3) == SET)
{
      DMA_ClearFlag(DMA1_Stream3, DMA_IT_TC);
      DMA_ClearFlag(DMA1_Stream4, DMA_IT_TC);
      DMA_ClearITPendingBit(DMA1_Stream3, DMA_IT_TCIF3);
      DMA_ClearITPendingBit(DMA1_Stream4, DMA_IT_TCIF4);

      SPI_I2S_DMACmd(SPI2, SPI_I2S_DMAReq_Tx, DISABLE);
      SPI_I2S_DMACmd(SPI2, SPI_I2S_DMAReq_Rx, DISABLE);
                     printf("DMA 111 \n");
}
            printf("DMA 222 \n");
}