PLL system LPF/PFD/VCO/Divider model in Matlab,在Matlab中将PLL系统的各个模块模型话，便于分析整个PLL的...

verilog hdl frectrl verilog hdl frectrl -verilog hdl frectrl

3.2寸统宝LCD规格书，WHVGA 480×8-3.2-inch LCD specifications Toppoly

中国移动的彩铃方案，包括全国多个地区，介绍全面。-china mobile s color ring network,include lots of china province.

这篇文档详细讲述了选用嵌入式实时操作系统时应该注意的事项,-This document described in detail the selection of embedded real-time operating system should note,

射频识别芯片在汽车智能防盗报警装置中的应用,较之普通的磁卡和ＩＣ 卡，ＲＦＩＤ技术具有使用方便、数据交换速度快、便于维护和使用寿命长等优点。特别是它解决了无源（卡中无电源）和免接触这两大难题。-Radio frequency identification chip in the smart car anti-theft alarm device, compared with ordinary magnetic cards and IC cards, RFID technology has the ease of use, data exchange speed, ease of maintenance and long life etc.. In particular, it has resolved a passive (no power supply card) and free access to these two problems.

Project "Hand-Control with G-Sensor for Modelhelicopter"

helicopter modle paper from nu

2009年全国大学生电子设计竞赛试题 光伏并网发电模拟装置（A题）-2009 National Undergraduate Electronic Design Competition grid-connected PV simulation device (A question)

PPP挑战握手认证协议(CHAP)，PPP【1】提供了点到点链路传输多协议数据报的标准方法。 在PPP中也定义了一种可扩展的LCP，允许协商认证协议，从而可以在进行网络层 协议传输之前对对端进行认证。 本文定义了一种PPP认证方法，该方法利用随机“挑战”和依据“挑战”和密钥 计算出的加密哈希“应答”来完成认证。 -PPP Challenge Handshake Authentication Protocol (CHAP), PPP [1] provides a point-to-point link multi-protocol data transmission of standard methods. In PPP also defines a scalable LCP to allow consultations authentication protocol, thereby conducting transmission network layer protocol before the end-to-end authentication. This paper defines a PPP authentication methods, The method using random "challenge" and the basis for "challenge" and calculated key encryption Hash "responsive" to complete certification.