在单片机上基于RS232-c接口，利用汇编语言开发了双机通信程序，并调试通过，本压缩包也包含了可以直接下载到单片机的hex文件！-In the microcontroller-based RS232-c interface was developed using assembly language double communication program, and debug through the archive also contains the microcontroller can be directly downloaded to hex file!