用VB做的与OUTLOCK联接能发送接收邮件的，小程序

西门子plc与上位机通信的源码程序，详细的说明西门子ppi通信协议的应用-Siemens plc Communication between PC and the source program, detailed description of the application of communication protocol Siemens ppi

用C#.net开发的IP对IP的语音聊天,但需要用户配置directx等-C#. Net development of the IP right IP voice chat, but users need, such as configuration DirectX

双音多频（DTMF）信号发生器的使用源程序，vc 编写，与《双音多频（DTMF）接收器的使用源程序》联合用-Dual-Tone Multi-Frequency (DTMF) signals using the generator source, vc preparation, and "Dual-Tone Multi-Frequency (DTMF) receiver to the source using" joint use

串口通讯 串口通讯 串口通讯 -Serial communications Serial communications Serial communications Serial communications Serial communications Serial communications

本程序是利用VB的Winsock控件来实现网络中两台计算机的通信.-this program is to use VB Winsock Control to achieve two computer network communications.

程序简单实现了画蜂窝小区的拓扑图，输入变量为小区数目和小区半径，自动画出小区拓扑图结构，并返回小区中心的坐标位置。适合初学者使用，可用于拓展。

串口通信程序中串行口设置源代码，简单方便，容易看懂-Serial communication serial port to set the program source code, simple and convenient, easy to understand

CDMA基础知识 CDMA基本概念 通信网络基本组成 上下行信道的分类 调制方式-CDMA basic knowledge of the basic concept of CDMA communications network elements downstream channel modulation classification

PSK通信编程仿真源程序-PSK communication simulation programming source

周立功的中文ARM7TDI文档 需要账号才能下载-week the Chinese, who need ARM7TDI document can be downloaded account