说明：  数据由DMA送到内存中,主程序中把每个通道的数据分检出来经过"去极值取平均值滤波"后送给LCD显示,在万利的开发板上显示的值比万利的例子稳定多了
(Data sent by the DMA memory, the main program data for each channel after sorting out "to the extreme averaging filter" to the LCD display, the value of the development board Manley displayed stable than Manley examples more)