自己用C#写的一个上位机串口调试工具,包含Xmodem文件传输功能,串口数据收发,循环定时发送,逐行发送,串口终端等功能,平时项目中一直在用,非常方便.(I wrote a serial debug tool on the host computer with C#, including Xmodem file transfer function, serial port data receiving and sending, cyclic timing sending, sending line by line, serial port terminal and other functions. It is very convenient to use in peacetime projects.)