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使用VS2013的MFC编写的一个简单Modbus RTU的单命令控制Demo，能够实现继电器的开和关(A single command control demo of a simple Modbus RTU written in MFC of VS2013 enables relay opening and closing)

最简单的串口通信程序，MFC，基于SerialPort类,VS2008(The simplest SerialPort program,based on CSerialPort ,VS2008)

VC语言编写的并口通信例程，可以对初学者有帮助的小程序。(VC language of parallel communication routines, can be helpful for beginners small procedures.)

此程序是一个串口调试助手。可以实现16进制发送接收。用MFC编写。(This program is a serial debugging assistants can realize hexadecimal to send and receive written in MFC )

VC实现和S7-200PLC的串口通信程序,很有价值哦(VC and S7-200PLC Serial Communication Program and of great value oh)

modbusRTU Communications with RS485

标准串口win32接口函数,通过这些微软提供的串口接口函数可以实现对串口的读写操作(standard serial port debug source code)

说明：  非常好用的串口变成工具和源代码，可以自动搜索串口，有非常高的参考价值。(it is very nice! you can use it easyly, it is Visul C++ code .)

串口调试助手VB.zip 我想大家都用过 串口调试助手， 也都期望自己能够制作出同样的通信界面； 那么这里的工具，让你如愿…… 采用VB编程，超级简单实用。(Serial debugging assistant VB.zip I would like that we have used serial debugging assistant, also expect to be able to produce the same communication interface where the tool that allows you to do so ... using VB programming, super simple and practical.)

串口大师的源码程序,c语言。学习串口或者是学习c都是很好的例子。(the sourcecode of the comm communication)