串口测试小程序，简单易用的串口调试程序，可以进行简单的串口读写，并可以对读出字符截取。-Serial tests, easy-to-use small program of serial debugging, simple operation, and can read the serial to read characters.

串口程序 labview 与单片机通信 进行数据读写操作记忆备置-servial with labview and use RS232 to communication with MCU. including the servial config read data and write data