些源码是一个高精度直流测试校准源码，采用串口通信可以用来调试和测试表-some source is a high-precision calibration source DC tests, using serial communications can be used to debug and test table

MFC实现的串口工具源码，能够在windows下进行串口通信，代码理解容易，对于在windows下编写串口工具很具有参考作用。-MFC realize serial port tool source code, can carry on the serial port communication under Windows, the code to understand easily, to write a serial port tools under Windows is a referen