Jitter is extremely important in systems using PLL-based clock drivers. The effects of jitter range from not having any effect on system operation to rendering the system completely non-functional. This application note provides the reader with a clear understanding of jitter in high-speed systems. It introduces the reader to various kinds of jitter in high-speed systems, their causes and their effects, and methods of reducing jitter. This application note will concentrate on jitter in PLL-based frequency synthesizers.

编码器工作原理绝对脉冲编码器:APC 增量脉冲编码器:SPC -goode werf sdfvsdf wqete gerg

基于ATmega16单片机设计的串口波特率发送程序。下载方便。-ATmega16-based single-chip serial port baud rate to send the design process. Download easy.

非常详细的modbus规范介绍，有串口的也有基于tcp的。。。。一书在手，modebus不用愁。。。。MODBUS标准分为三部分。第一部分（“Modbus协议规范”）描述了MODBUS事物处理。第二部分（“MODBUS报文传输在TCP/IP上的实现指南”）提供了一个有助于开发者实现TCP/IP上的MODBUS应用层的参考信息。第三部分（“MODBUS报文传输在串行链路上的实现指南”）提供了一个有助于开发者实现串行链路上的MODBUS应用层的参考信息。-very detailed Modbus standard, a serial port is based on the tcp. . . . A book in hand, do not have to worry about modebus. . . . MODBUS divided into three parts. The first part ( "Modbus protocol specification") describes the MODBUS handle things. The second part ( "MODBUS Packet Transmission in TCP/IP Implementation Guide"), provides a help developers to implement TCP/IP on the application layer MODBUS reference information. The third part ( "MODBUS Packet Transmission in the serial link achieve Guide"), provides a help developers achieve serial MODBUS link on the application layer of reference information.

基于CSerialPort类，增加了RecvBlock方法，一次性读取多个字节，并且改进了无法正常退出的bug。原说明：This class can read, write and watch one serial port.It sends messages to its owner when something happends on the portThe class creates a thread for reading and writing so the mainprogram is not blocked.

sip_rfc2543 标准化文档-sip_rfc2543 standardized documents

我做项目用的GPS数据解析程序，很不容易调通，把数据解析出来了，用的还不错，敬请参考。初来乍到，请给些积分。

一份很不错的Linux/Unix环境下makefile文件写法说明文文档-a very good Linux/Unix environment makefile note written text document files

这些是MIMO信道的程序,对于多天线无线通信系统的多输入多输出系统有很好的借鉴作用,希望对大家有所帮助.-MIMO channel procedures, for multi-antenna wireless communication systems for multi-input multi-output system is a good reference guide, we hope for some help.

TAPI 接受演示程序-TAPI accept Demonstration Program