STM32F407和SDIO WIFI模块使用DMA传输失败

程序运行后卡在while (DMA_GetFlagStatus(DMA2_Stream3,DMA_FLAG_TCIF3) == RESET){}这一句。
此时，部分寄存器状态为SDIO->STA=0x00045000，DMA_GetCurrDataCounter(DMA2_Stream3)=16，
部分内存数据：


DMA配置代码如下：
[C] 纯文本查看 复制代码
static void DMA_TxConfiguration(u32 *BufferSRC, u32 BufferSize){DMA_InitTypeDef DMA_InitStructure;RCC_AHB1PeriphClockCmd(RCC_AHB1Periph_DMA2,ENABLE);DMA_Cmd(DMA2_Stream3, DISABLE);DMA_DeInit(DMA2_Stream3);while (DMA_GetCmdStatus(DMA2_Stream3) != DISABLE){}DMA_ClearFlag(DMA2_Stream3,DMA_FLAG_TCIF3 | DMA_FLAG_HTIF3 | DMA_FLAG_TEIF3 | DMA_FLAG_DMEIF3 | DMA_FLAG_FEIF3);/* DMA2 Channel4 Config */DMA_InitStructure.DMA_Channel=DMA_Channel_4;DMA_InitStructure.DMA_PeripheralBaseAddr = (u32)SDIO_FIFO_Address;DMA_InitStructure.DMA_Memory0BaseAddr = (u32)BufferSRC;DMA_InitStructure.DMA_DIR =DMA_DIR_MemoryToPeripheral; DMA_InitStructure.DMA_BufferSize = BufferSize / 4;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_VeryHigh;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_MemoryBurst_Single;// DMA_FlowControllerConfig(DMA2_Stream3,DMA_FlowCtrl_Peripheral);DMA_Init(DMA2_Stream3, &DMA_InitStructure);DMA_Cmd(DMA2_Stream3, ENABLE); }