由于STM的DMA方面文档比较难找。STM32下的DMA1和DMA2下的通道对应图解，适用于大容量产品-Because DMA STM s more difficult to find aspects of the document. DMA1 and channel DMA2 under STM32 under the corresponding diagrams, suitable for large-capacity products

STM32_ADC结合DMA数据采样与软件滤波处理-STM32_ADC and dma