use udp communications software, including client and server side, sending packe...

VC++的USB接口编程源代码,完整的源代码。很不错的-VC++ The USB interface programming source code, complete source code. Very good

这是个很不错的编程代码，有关于RMI的是中科院的老师编写的有关网络电话的代码-this is a very good program code on the RMI Academy teacher preparation of the code of the telephone network

Serialport,很好用的VC串口通信类，这是最新版-Serialport, a good VC used in serial communication class, which is the latest version of

PSK调制和解调,包括BPSK,DPSK等.-PSK modulation and demodulation, including BPSK, DPSK, etc..

MFC界面的 API 串口通信 代码非常简单 一看就懂 采用一个线程接收数据，满足简单的开发需要 开发工具VS2005 

中国联合通信公司 短消息网关系统接口协议客户端演示程序-China unicom corp. Demo programme of short message gateway interface protocol in client

用visual c++编写的MFC程序，可以实现PC对PC的通信及PC对单片机的通信。-Visual c++ using the MFC process to prepare, you can achieve PC to PC and PC communication on single-chip communications.

Modbus 中文说明文档，很详细。比较不错-Modbus Chinese documentation, very detailed. Quite good

基本功能高效的CAN通讯应用.同样,CAN232 不仅适应基本CAN-bus产品,也满足基于高层协议如ModBUS、DeviceNet...之间可选 3. RS232接口,波特率在1200bps-basic functions of CAN efficient communications applications. Similarly, the CAN232 not only meet the basic CAN-bus products, but also to meet for high-level protocols such as ModBUS, DeviceNet ... between three options. RS232 interface, baud rate in 1200

VB写的通过串口与考勤机连接通讯的程序-VB written attendance through the serial port connected with the communication procedures