STM32F105作为从机发送数据，数据可以发送出去有时候对但是大部分时候都是错的，错的数据还是固定的，貌似是WS没有对其的问题，请教怎么解决？       
RCC_APB2PeriphClockCmd( RCC_APB2Periph_GPIOB | RCC_APB2Periph_GPIOA, ENABLE);
GPIO_PinRemapConfig(GPIO_Remap_SWJ_JTAGDisable,ENABLE);
  GPIO_InitStructure.GPIO_Pin = GPIO_Pin_3 | GPIO_Pin_5;//I2SCK?I2SSD
  GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
  GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP;
  GPIO_Init(GPIOB, &GPIO_InitStructure);
  GPIO_InitStructure.GPIO_Pin = GPIO_Pin_15;//I2Sws
  GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
  GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP;
  GPIO_Init(GPIOA, &GPIO_InitStructure);
  RCC_APB1PeriphClockCmd( RCC_APB1Periph_SPI3, ENABLE);
         /* CODEC_I2S peripheral configuration */
  SPI_I2S_DeInit( SPI3 );
  I2S_InitStructure.I2S_AudioFreq = I2S_AudioFreq_8k;
  I2S_InitStructure.I2S_Standard = I2S_Standard_PCMShort;
  I2S_InitStructure.I2S_DataFormat = I2S_DataFormat_32b;
  I2S_InitStructure.I2S_CPOL = I2S_CPOL_Low;
  I2S_InitStructure.I2S_Mode = I2S_Mode_SlaveTx;
  I2S_InitStructure.I2S_MCLKOutput = I2S_MCLKOutput_Disable;

        RCC_AHBPeriphClockCmd(RCC_AHBPeriph_DMA2, ENABLE);
  DMA_DeInit(DMA2_Channel2);
  DMA_InitStructure.DMA_PeripheralBaseAddr = (uint32_t)(&SPI3->DR);
  DMA_InitStructure.DMA_MemoryBaseAddr = (uint32_t)APP_Tx_Buffer;
  DMA_InitStructure.DMA_DIR = DMA_DIR_PeripheralDST;
  DMA_InitStructure.DMA_BufferSize = APP_RX_DATA_SIZE;
  DMA_InitStructure.DMA_PeripheralInc = DMA_PeripheralInc_Disable;
  DMA_InitStructure.DMA_MemoryInc = DMA_MemoryInc_Enable;
  DMA_InitStructure.DMA_PeripheralDataSize = DMA_PeripheralDataSize_HalfWord;
  DMA_InitStructure.DMA_MemoryDataSize = DMA_MemoryDataSize_HalfWord;
  DMA_InitStructure.DMA_Mode = DMA_Mode_Normal;
  DMA_InitStructure.DMA_Priority = DMA_Priority_High;
  DMA_InitStructure.DMA_M2M = DMA_M2M_Disable;
  DMA_Init(DMA2_Channel2, &DMA_InitStructure);

  SPI_I2S_DMACmd(SPI3, SPI_I2S_DMAReq_Tx, ENABLE);
        DMA_Cmd(DMA2_Channel2, ENABLE);
        DMA2_Channel2->CNDTR=0;
       
        I2S_Init( SPI3, &I2S_InitStructure );
  I2S_Cmd( SPI3, ENABLE );