Q200B实验开发板实用的程序，已经在原有基础上测试改进，现在实现两路AD转化，并且在数码管交替显示转化数值，同时串口中断方式实现简单响应回传数据给上位机。-Q200B experimental procedures and practical development board has been tested on the original basis to improve, and now the realization of two AD conversion, and in turn shows into digital control value, at the same time to achieve a simple serial port interrupt data in response to return to the host computer.