对于本人自己的DMA的配置程序如下：
        DMA_InitStructure.DMA_PeripheralBaseAddr = ( uint32_t ) ( & ( ADC1->DR ) );
        DMA_InitStructure.DMA_MemoryBaseAddr = (uint32_t)ADC_ConvertedValue;
        DMA_InitStructure.DMA_DIR = DMA_DIR_PeripheralSRC;
        DMA_InitStructure.DMA_BufferSize = 1024;
        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_High;
        DMA_InitStructure.DMA_M2M = DMA_M2M_Disable;
        DMA_Init(DMA1_Channel1, &DMA_InitStructure);

ADC的配置程序如下：
        ADC_InitStructure.ADC_Mode=ADC_Mode_RegSimult;
        ADC_InitStructure.ADC_ContinuousConvMode=ENABLE;
        ADC_InitStructure.ADC_DataAlign=ADC_DataAlign_Right;
        ADC_InitStructure.ADC_ExternalTrigConv=ADC_ExternalTrigConv_None;
        ADC_InitStructure.ADC_NbrOfChannel=NOFCHANEL;
        ADC_InitStructure.ADC_ScanConvMode=ENABLE;
        ADC_Init(ADC1,&ADC_InitStructure);
        RCC_ADCCLKConfig(RCC_PCLK2_Div6);
        ADC_RegularChannelConfig(ADC1, ADC_Channel_2, 1, ADC_SampleTime_1Cycles5);
        ADC_DMACmd(ADC1, ENABLE);

芯片型号是F103C8T6。如果是我实测采样传输频率只有4us左右，我希望能有1M的采样频率，希望能有大神帮忙看看，已经纠结n多天了。拜谢~~