一个modbus的编程库

串行链路协议的总结 H3CTE认证指南-串行链路原理与配置指南-serial line Internet protocol

数字电视系统原理及测试 介绍数字电视方面的原理知识-digital television system theory and test digital TV introduced the theory of knowledge

这个是windows版本的.就是用串口通讯线将两台机子用串口连起来进行通讯，最简单的。比如在a机上输入一个字符，在b机上能显示出来 -This is a windows version of the. Serial communication is to use two machines will be used for serial-link appear, the most simple. For example, in a plane into a character, b plane will display

CDMA系统采用码分多址的技术及扩频通信的原理，使得可以在系统中使用多种先进的信号处理技术，为系统带来许多优点。本文主要从以下几个方面阐述：1。CDMA系统的主要优点2.CDMA的信道3.功率控制4.链路预算与容量估算5.呼叫处理6.影响网络性能的有关参数7.CDMA系统性能分析的具体步骤8.CDMA系统的性能评估路测方法（以QUALCOMM的CAIT为例）9 CDMA性能分析

m序列的生成，包括在有限域GF(p)中的基于不同p取值，不同级数条件下的本原多项式多种选择条件下的m序列生成。-m sequence generation, including in GF (p), the p value based on different, different levels under the conditions of primitive polynomial number of options under the conditions of m-sequences generated.

//定义主机正在通讯闪灯信号 定义主机通讯的从机号 定义主机通讯传送握手信号 定义从机回复通讯握手信号 定义数据包的头 定义数据包的尾-//definition of mainframe communications are flashing light signal definition mainframe communications from the definition of mainframe machines, handshake signal transmission from the plane defined response communications handshake signal definition data packets in the first data packet definition of the tail

an overview of GSM network system by aircom

建立管道服务器、客户端实现双向通信，消息实行队列机制。

Struts chinese director 书籍语言： 简体中文 书籍类型： 程序设计 授权方式： 免费软件 书籍大小： 231 KB -Struts books Language : English books types : Authorization Program Design : free software books Size : 231 KB

Transporting DNP V3.00 over Local and Wide Area Network. 1 Overview 1.1 Purpose DNP V3.00 (hereafter referred to simply as DNP) was designed for serial point-to-point communication (e.g. RS-232) with limited support for half duplex serial networks (e.g. RS-485). In order for devices to exchange DNP messages in a local (LAN) and/or wide area network (WAN), one must either augment the protocol to support a network environment or use an existing network transport mechanism. This document takes the latter approach specifically, to define how to transport DNP traffic on the internet protocol suite. -Transporting DNP V3.00 over Local and Wide Area Network. 1 Overview 1.1 Purpose DNP V3.00 (hereafter referred to simply as DNP) was designed for serial point-to-point communication (e.g. RS-232) with limited support for half duplex serial networks (e.g. RS-485). In order for devices to exchange DNP messages in a local (LAN) and/or wide area network (WAN), one must either aug