这个程序为msc1210Y5的AD采样程序，采用串口中断接收上位机命令进行转化，并把转化结果发送回上位机显示。程序已经过调试和校正，精度可以达到0.2mV。输入信号范围是-10V-10V，通过运放转化为0.5-4.5输入差分同相端，差分反相端为2.5V基准电压。-This procedure msc1210Y5 the AD sampling procedure for the PC serial port receiver interrupt command transformation, and to transform the results sent back to host computer display. Procedures have been debugging and correction, accuracy can be achieved 0.2mV. Input signal range is-10V-10V, 0.5-4.5 by the op amp into the input differential-phase side, the differential inverting terminal is 2.5V reference voltage.