chirpmodsys

说明：  51MODBUS从机程序源码希望对有用的人有用，，(51MODBUS,welcom to here,thank you very mouch.)

实现BPSK的载波同步，采用的方法是锁频环，最大似然法频率估计(BPSK carrier synchronization is realized,the method is frequency - locked loop and maximum likelihood frequency estimation)

VC6连接Redis服务器示例，系统:win32 xp sp3，编译器:VC6，无依赖(VC6 connect Redis server example, the system: win32 xp sp3, compiler: VC6, no reliance)

说明：  实现Ethercat现场通讯的主从站代码实例(An Example of Master-slave Station Code for Ethercat Field Communication)

这几章PPT讲述了C++面向对象编程思想的基本知识，最后用VC++举了一个例子(PPT these chapters on the basic knowledge of C ++ object-oriented programming ideas, and finally VC + cited an example)

用与电话和电脑的串行通讯，用的是VB写的一些介绍和实例(Used with the telephone and computer serial communications, using VB to write the introduction and examples of some)

TD-SCDMA物理层原理，了解物理层技术，了解信道编码的基本原理。(TD-SCDMA Physical Layer Principle)

本程序是基于LABWINDOWS/CVI 的，主要是通过串口采集下位机信息，然后显示状态信息并通过串口发送命令字节。(The program is based on LABWINDOWS/CVI.It get message from RS232and display status,then send command by RS232.)

说明：  802.16E的协议文档，完整版本。其中包括3个版本。(802.16E protocol document, full version.)

HART Communication Foundation - Universal Command Specification