这是用总线器件做的ADC实验，对于MCS196，LPC2103，芯片已经带有ADC转换电路，也可以用片上的ADC进行模数转换。-This is done using the ADC test bus device for MCS196, LPC2103, the chip has been with the ADC circuit, you can also use the ADC on-chip analog to digital conversion.