通过仿真，分析了多

serial port 串口通信 波特率 设置 写的很好-serial port

CAN，全称为“Controller Area Network”，即控制器局域网，是国际上应用最广泛的现场总线之一。最初，CAN被设计作为汽车环境中的微控制器通讯，在车载各电子控制装置ECU之间交换信息，形成汽车电子控制网络。比如：发动机管理系统、变速箱控制器、仪表装备、电子主干系统中，均嵌入CAN控制装置。-CAN, called the "Controller Area Network" LAN controller that is the world"s most widely used fieldbus one. Initially, CAN was designed as a vehicle environment microcontrollers communications, the car of the electronic control devices to exchange information between ECU, the automotive electronic control network. For example : engine management systems, transmission controllers, instrumentation and equipment, electronic trunk system, both embedded CAN control devices.

一个SMS 的短信平台的原代码，需要JAVA 的comm.jar的支持。可以和一些商用SMS的短信平台相媲美-an SMS messaging platform of the original code, the need JAVA Comm.jar support. Business can and some SMS messaging platform comparable

USB总线和429总线数据通信的用户程序和驱动程序之间的动态连接库函数-USB Bus and 429 data communications users and drivers between the dynamic link library functions

QAM调制的基本原理 QAM调制实际上是幅度调制和相位调制的组合。相位 + 幅度状态定义了一个数字或数 字的组合。QAM的优点是具有更大的符号率，从而可获得更高的系统效率。通常由符号率 确定占用带宽。因此每个符号的比特（基本信息单位）越多，效率就越高。-QAM modulation of the basic principles are in fact QAM modulation amplitude modulation and phase modulation of the portfolio. Phase+ margin status defines a combination of numbers or figures. The advantage of QAM symbols are greater rate, thus the system efficiency will be higher. Symbol rate is usually determined by the occupied bandwidth. Thus each bit symbols (basic units of information) the more the higher the efficiency.

在XWindows下使用打印机界面发送传真 -Using printer interface to send fax in Xwindows

Adaptive Huffman Coding and Decoding for Data Compression in MATLAB

GPS NEMA 0183协议（中文）-GPS NEMA 0183 agreement (Chinese)

资源描述在类中定义回调函数，并在应用中实现回调函数的调用-Implemented in a class function callback

Apress.Peer.to.Peer.with.VB.Dot.NET.eBook-LiB.chm 一本关于用VB.NET如何开发P2P程序的书，英文原版，非常不错-Apress.Peer.to.Peer.with.VB.Dot.NET. eBook- LiB.chm one on how to develop with VB.NET P2P procedures, English original, very good!