ADC转换数据的DMA传输

happy · 发表于 2013-7-18 11:12:36

ADC转换数据的DMA传输怎么设置啊
我设置了DMA和ADC 为什么仿真时没有结果呢
程序如下

DMA_InitTypeDef DMA_InitStruct;

DMA_InitStruct.DMA_PeripheralBaseAddr = (u32)(&ADC1->DR);

    DMA_InitStruct.DMA_MemoryBaseAddr        = (u32)(&ADC_DATA);
    DMA_InitStruct.DMA_DIR                   = DMA_DIR_PeripheralSRC;
    DMA_InitStruct.DMA_BufferSize            = 1;
    DMA_InitStruct.DMA_PeripheralInc         = DMA_PeripheralInc_Disable;
    DMA_InitStruct.DMA_MemoryInc             = DMA_MemoryInc_Disable;
    DMA_InitStruct.DMA_PeripheralDataSize    = DMA_PeripheralDataSize_HalfWord；
    DMA_InitStruct.DMA_MemoryDataSize        = DMA_MemoryDataSize_HalfWord;
    DMA_InitStruct.DMA_Mode                  = DMA_Mode_Circular;

    DMA_InitStruct.DMA_Priority              = DMA_Priority_VeryHigh;
    DMA_InitStruct.DMA_M2M                   = DMA_M2M_Disable;
    DMA_Init(DMA1_Channel1, &DMA_InitStruct);
    DMA_Cmd(DMA1_Channel1, ENABLE);

adc也使能dma传输了仿真时在adc_data
看不到数据