modbus通信协议中文版，详细介绍了modbus协议，LRC校验，CRC校验等，并给出了C语言例程代码。...

cdma钟卡控制编程,用到口通讯,数据包拆分组合,发送-serial port congtrl

260 ad采样-260 sampling ad

串口通信的用户协议的编制与数据处理方法 串口数据包处理方法编程实例-Serial Communication user agreement and the establishment of data processing methods serial data packet processing methods Programming Example

通过rs232，发送一条消息到另一端，可以打开端口，检查打开后才输入消息。

C++Builder 串口编程的很好的控件包，有必要用ＢＣＢ编写的同仁不防下载试用．-C Builder Serial Programming good control packet, it is necessary to prepare the BCB colleagues not anti-downloading trial.

详细介绍了使用VB编制串口通信程序，其中包含循环冗余校验CRC代码段-Described in detail the preparation of the use of VB serial communication program, which includes cyclic redundancy check CRC code segment

用vb实现串口间通信,可以用来熟悉串口间传输信息的原理.-with Serial Communication, which can be used with serial transmission of information between the principle.

一个串口通信的程序，采用visual c++实现，如果要跟硬件打交道，那这代码或许对您有点用。-a serial communication procedure, using visual c realization Being a hardware deal Well, this may have on your code with a bit.

串口测试程序，打开，写数据，受数据，关闭-serial testing procedures to open and write data by the data, closing

pascal写的一个通讯例子 -The communication example writed by pascal