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Wincc使用MSComm控件串口通讯，VB中发送十六进制数据(Wincc uses MSComm control to communicate through serial port and sends hexadecimal data in VB)

STRING MATHMATICAL PLEASE COMMENT

这个程序是利用VC编写的一个从机串口响应modbus查询命令程序，实现RTU方式，3.5和1.5个字符时间检测，CRC和LRC校验。(This program is written using VC as a response from the machine serial modbus query command procedure, to achieve RTU mode, 3.5 and 1.5 characters time detection, CRC and LRC check.)

基于VC实现的串口通信，可以实现串口的数据读取。(Based on the VC serial communications)

一个简明的串口通讯例子(a simple and clear example for serial port communication)

说明：  51单片机串口通讯软件与上位机通讯 含有多个程序(this is a programe to serils community to 51 and pc.)

初始化RTCM控制，并且把文件或者串口数据转输出成RTCM格式(RTCM control initialization, and the output files or serial data transfer format to RTCM)

VC++串口通讯程序 大家可以看看，错误之处欢迎指出，这时本人花不少时间搞出来的啊(VC serial communication process we can see, the mistake welcome, Then I spend a lot of time in the ah)

VB开发的串口通信源码。对端口速度、奇偶校验、停止位等都可以设置。用于串口通信的开发(VB source of serial communications. The port speed, parity, stop-can all be set up. Serial Communication for Development)

这个是非常流行的串口调试工具的VC++源代码，对于需要深入了解串口通信的朋友非常有帮助，需要的朋友可以看看。(This is a very popular tool for serial debug VC++ source code, the need for deeper understanding of serial communication very helpful friend, a friend in need can take a look at.)