I2S 时钟管脚配置
GPIO_InitTypeDef GPIO_InitStructure;
        I2S_InitTypeDef I2S_InitStructure;
// NVIC_InitTypeDef   NVIC_InitStructure;
  RCC_I2SCLKConfig  (RCC_I2S2CLKSource_PLLI2S);
        /* Enable the CODEC_I2S peripheral clock */
  RCC_APB1PeriphClockCmd(CODEC_I2S_CLK, ENABLE);
                //ʹÄÜI2SµÄʱÖÓ!!
        RCC_AHB1PeriphClockCmd(CODEC_I2S_GPIO_CLOCK, ENABLE);
       


          /* CODEC_I2S_2 pins configuration: WS, SCK and SD pins -----------------------------*/
  GPIO_InitStructure.GPIO_Pin = CODEC_I2S_2_WS_PIN | CODEC_I2S_2_SCK_PIN | CODEC_I2S_2_SD_PIN | CODEC_I2S_2_ext_PIN;
  GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF;
  GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
  GPIO_InitStructure.GPIO_OType = GPIO_OType_PP;
  GPIO_InitStructure.GPIO_PuPd = GPIO_PuPd_NOPULL;
  GPIO_Init(CODEC_I2S_2_GPIO, &GPIO_InitStructure);     
  /* Connect pins to I2S peripheral  */
  GPIO_PinAFConfig(CODEC_I2S_2_GPIO, CODEC_I2S_2_WS_PINSRC, CODEC_I2S_2_GPIO_AF);  
  GPIO_PinAFConfig(CODEC_I2S_2_GPIO, CODEC_I2S_2_SCK_PINSRC, CODEC_I2S_2_GPIO_AF);
  GPIO_PinAFConfig(CODEC_I2S_2_GPIO, CODEC_I2S_2_SD_PINSRC, CODEC_I2S_2_GPIO_AF);
        GPIO_PinAFConfig(CODEC_I2S_2_GPIO, CODEC_I2S_2_ext_PINSRC, CODEC_I2S_2_GPIO_AF);
        //Ö÷ʱÖÓ!
          /* CODEC_I2S pins configuration: MCK pin */
  GPIO_InitStructure.GPIO_Pin = CODEC_I2S_2_MCK_PIN;
  GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF;
  GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
  GPIO_InitStructure.GPIO_OType = GPIO_OType_PP;
  GPIO_InitStructure.GPIO_PuPd = GPIO_PuPd_UP;
  GPIO_Init(CODEC_I2S_2_MCK_GPIO, &GPIO_InitStructure);
       
        GPIO_PinAFConfig(CODEC_I2S_2_MCK_GPIO, CODEC_I2S_2_MCK_PINSRC, CODEC_I2S_2_GPIO_AF);


DMA配置
void I2S2ext_RX_DMA_Init(u8* buf0,u8 *buf1,u16 num)
{        
       
        NVIC_InitTypeDef   NVIC_InitStructure;
        DMA_InitTypeDef  DMA_InitStructure;
       

  RCC_AHB1PeriphClockCmd(RCC_AHB1Periph_DMA1,ENABLE);//DMA1ʱÖÓʹÄÜ
       
        //DMA_Cmd(DMA1_Stream3, DISABLE);
        DMA_DeInit(DMA1_Stream3);
               
        while (DMA_GetCmdStatus(DMA1_Stream3) != DISABLE){}//µÈ´ýDMA1_Stream3¿ÉÅäÖÃ
        SPI_I2S_DMACmd(I2S2ext, SPI_I2S_DMAReq_Rx, ENABLE);       
        DMA_ClearITPendingBit(DMA1_Stream3,DMA_IT_FEIF3|DMA_IT_DMEIF3|DMA_IT_TEIF3|DMA_IT_HTIF3|DMA_IT_TCIF3);//Çå¿ÕDMA1_Stream3ÉÏËùÓÐÖжϱêÖ¾

  /* ÅäÖÃ DMA Stream */

  DMA_InitStructure.DMA_Channel = DMA_Channel_3;  
  DMA_InitStructure.DMA_PeripheralBaseAddr = (u32)&I2S2ext->DR;
  DMA_InitStructure.DMA_Memory0BaseAddr = (u32)buf0;
  DMA_InitStructure.DMA_DIR = DMA_DIR_PeripheralToMemory;
  DMA_InitStructure.DMA_BufferSize = num;//Êý¾Ý´«ÊäÁ¿
  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_Word;
  DMA_InitStructure.DMA_Mode = DMA_Mode_Circular;
  DMA_InitStructure.DMA_Priority = DMA_Priority_Medium;
  DMA_InitStructure.DMA_FIFOMode = DMA_FIFOMode_Disable;   
  DMA_InitStructure.DMA_FIFOThreshold = DMA_FIFOThreshold_1QuarterFull;
  DMA_InitStructure.DMA_MemoryBurst = DMA_MemoryBurst_Single;
  DMA_InitStructure.DMA_PeripheralBurst = DMA_PeripheralBurst_Single;
  DMA_Init(DMA1_Stream3, &DMA_InitStructure);
       
DMA_DoubleBufferModeConfig(DMA1_Stream3,(u32)buf1,DMA_Memory_0);

  DMA_DoubleBufferModeCmd(DMA1_Stream3,ENABLE);

  DMA_ITConfig(DMA1_Stream3,DMA_IT_TC,ENABLE);

  NVIC_InitStructure.NVIC_IRQChannel = DMA1_Stream3_IRQn;
  NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority =0x00;
  NVIC_InitStructure.NVIC_IRQChannelSubPriority = 0x01;
  NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;
  NVIC_Init(&NVIC_InitStructure);//ÅäÖÃ

}


中断服务函数
void DMA1_Stream3_IRQHandler(void)
{      
        int i=0;
        if(DMA_GetITStatus(DMA1_Stream3,DMA_IT_TCIF3)==SET)        //DMA1_Stream3,´«ÊäÍê³É±êÖ¾
        {
                DMA_ClearITPendingBit(DMA1_Stream3,DMA_IT_TCIF3);        //Çå³ý´«ÊäÍê³ÉÖжÏ
                for(i=0;i<=1024;i++)
                {
                printf("PI %d \r\n",*(p1+i));//¸üÐÂÏÔʾÄÚÈÝ
                       
                }
    //i2s_rx_callback();        //Ö´Ðлص÷º¯Êý,¶ÁÈ¡Êý¾ÝµÈ²Ù×÷ÔÚÕâÀïÃæ´¦Àí  
        }                                                                                           
}


void I2S_Rec_Start(void)
{               
        DMA_Cmd(DMA1_Stream3,ENABLE);//¿ªÆôDMA TX´«Êä,¿ªÊ¼Â¼Òô       
}


主程序
my_I2S2ext_Init(I2S_Standard_Phillips,I2S_Mode_SlaveRx,I2S_CPOL_Low,I2S_DataFormat_32b);
I2S2ext_RX_DMA_Init(p1,p2,(2*1024));
I2S_Rec_Start();

程序是从原子的历程移植的 为何DMA的中断不能进不去，调了一上午，请各位大神帮忙看一下，不胜感激

小弟在线等，请各位帮下忙

这是DMA寄存器的配置