some of the GPS and GSM design and theoretical basis for the development of this...

smart card iso7816 标准的文档-smart card iso7816 standards document

CRC 校验算法的三种实现方式 全部为C代码-CRC algorithm of the three ways that all of the C code

DNP 3.0通讯规约，包括数据链路层、传输层、应用层、数据对象库4部分。-DNP 3.0 communication Statute, including the data-link layer, transport layer and the application layer, the data object library four parts.

在本计划中，将考虑高度分散的环境；

今年上半年我为现公司一款流量计产品编写的上位机Modbus通讯程序（下位机程序也是我用C编写的，由于受到法律许可限制，在此不能上传，不过在将来我会把设计思路传上共享），包括自创的Modbus协议的Delphi实现及其完整调用，还有一份我编写的该产品的完整的Modbus协议说明书，非常有参考价值。-First half of this year the company I am now prepared a flowmeter products PC Modbus communications procedures (the procedures are under-bit machine I use C prepared, because of license restrictions by law, can not upload here, but I will in the future design ideas Chuan-share), including self-Modbus protocol Delphi to achieve their full call, there is also a preparation of the product I am a complete Modbus protocol specification, a very good reference material.

直接扩展频谱通信系统的伪随机码相位和频偏的串行捕获程序。-Direct spread spectrum communication system of pseudo-random code phase and frequency offset of the serial capture program.

基于MAX274的有源带通滤波器设计。有需要的朋友请下载-MAX274-based active bandpass filter design. Friend in need, please download

P2P之UDP穿透NAT的原理与实现(附源代码).htm-P2P之UDP NAT htm

i2c总线的好文档 i2c总线的好文档-i2c bus good documentation of good documentation i2c bus

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