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  • How to call some functions that you might though it is simle sometimes, but it could take your worth

    How to call some functions that you might though it is simle sometimes, but it could take your worthful time. Try these short routes as fun whenever you take a break.

    标签: functions sometimes though could

    上传时间: 2015-04-10

    上传用户:1079836864

  • What Does the code DO? sometimes we may desire to hide our file contents from others.One of the poss

    What Does the code DO? sometimes we may desire to hide our file contents from others.One of the possible way is encrypting these files.Here a simple encryption technique is used(In VB - The same technique can be implemented in "c" also.) Program flow Explained * Open the File to be encrypted for Binary Access Read(Say Source File) * Open a temparory file where encrypted data is stored for Binary Access Write(Say Destination File) * Loop through the Source File Byte by Byte * For each byte read from the file, Complement the data. (Using Not operator (in C we have to use "~" operator) * Write Complemented Data to Destination File * Delete the Source File * Rename Destination file as Source File(Now Encryption is over)

    标签: sometimes the contents desire

    上传时间: 2013-12-25

    上传用户:playboys0

  • sometimes book is hardly to reading. You can solve it through this book. and then you can easily p

    sometimes book is hardly to reading. You can solve it through this book. and then you can easily pass all of them.

    标签: book sometimes can reading

    上传时间: 2014-01-01

    上传用户:aappkkee

  • Introduction sometimes you may collide with the following problem: a third-party binary component o

    Introduction sometimes you may collide with the following problem: a third-party binary component or control embedded into your application displays windows (usually message boxes) that hang your code until they are closed. If you do not have the source code of this binary and one does not have a good API to change one’s bad behaviour programmatically, it can be a real headache using the one. A famous example of such a binary is the WebBrowser control in .NET.

    标签: Introduction third-party sometimes following

    上传时间: 2013-12-31

    上传用户:pinksun9

  • Creating Safe State Machines(Mentor)

      Finite state machines are widely used in digital circuit designs. Generally, when designing a state machine using an HDL, the synthesis tools will optimize away all states that cannot be reached and generate a highly optimized circuit. sometimes, however, the optimization is not acceptable. For example, if the circuit powers up in an invalid state, or the circuit is in an extreme working environment and a glitch sends it into an undesired state, the circuit may never get back to its normal operating condition.

    标签: Creating Machines Mentor State

    上传时间: 2013-10-08

    上传用户:wangzhen1990

  • XAPP946-适用于Virtex-4 RocketIO MGT的开关电源

      This document presents design techniques and reference circuits that power Virtex™-4 FXRocketIO™ multi-gigabit transceivers (MGTs) operating at data rates below 3.125 Gb/s.When using multiple transceivers, it is sometimes preferred to power them from a switchingpower supply. However, switching power supplies generate noise that affects transceiver

    标签: RocketIO Virtex XAPP 946

    上传时间: 2013-11-18

    上传用户:huang111

  • 利用纤巧型负载点电路来简化电源电压的跟踪和排序

      Multiple-voltage electronics systems often requirecomplex supply voltage tracking or sequencing, whichif not met, can result in system faults or even permanentfailures in the fi eld. The design diffi culties in meetingthese requirements are often compounded in distributedpowerarchitectures where point-of-load (POL) DC/DCconverters or linear regulators are scattered across PCboard space, sometimes on different board planes. Theproblem is that power supply circuitry is often the lastcircuitry to be designed into the board, and it must beshoehorned into whatever little board real estate is left.Often, a simple, drop-in, fl exible solution is needed tomeet these requirements.

    标签: 负载点电路 电源电压 排序

    上传时间: 2013-10-08

    上传用户:15071087253

  • MATLAB与PSpice数据接口技术

    摘 要 瞬态仿真领域的许多工作需要获得可视化数据, 仿真电路不能将输出参数绘制成图形时研究工作将受到很大影响. 而权威电路仿真软件PSpice 在这个方面不尽如人意. 本文提出了一种有效的解决办法: 通过MATLAB 编程搭建一个PSpice 与MATLAB 的数据接口,使PSpice输出数据文件可以导入到MATLAB中绘制图形. 这令我们能够很方便地获得数据的规律以有效地分析仿真结果, 这项技术对于教学和工程实践都有比较实际的帮助.关键词: 瞬态仿真 仿真程序 PSpice MATLAB 可视化数据The Data Transfer from Pspice to MATLABWu hao Ning yuanzhong Liang yingAbstract Many works in the area of transient simulation has shown how a emulator such asPSpice can be interfaced to an control analysis package such as MATLAB to get viewdata. Thepaper describes how such interfaces can be made using the MATLAB programming. The platformas a typical platform will solve the problem that PSpice software sometimes can not draw the datato a picture. It can make us find the rule from numerous data very expediently, so we can analyzethe outcome of the simulation. And it also can be used in the field of education.Keywords Transient Simulation Emulator PSpice MATLAB Viewdata1 引言科学研究和工程应用常需要进行电路仿真 PSpice可进行直流 交流 瞬态等基本电路特性分析 也可进行蒙托卡诺 MC 统计分析 最坏情况 Wcase 分析 优化设计等复杂电路特性分析 它是国际上仿真电路的权威软件 而MATLAB的主要特点有 高效方便的矩阵和数组运算 编程效率高 结构化面向对象 方便的绘图功能 用户使用方便 工具箱功能强大 两者各有着重点 两种软件结合应用 对研究工作有很重要的意义香港理工大学Y. S. LEE 等人首先将PSpice和MATLAB结合 开发了电力电子电路优化用的CAD 程序MATSPICE[6] 将两者相结合的关键在于 如何用MATLAB 获取PSpice的仿真数据 对此参考文献 6 里没有详细叙述 本文着重说明用MATLAB 读取PSpice仿真数据的具体方法本论文利用MATLAB对PSpice仿真出的数据处理绘制出后者无法得到或是效果不好的仿真图形 下面就两者结合使用的例子 进行具体说明

    标签: MATLAB PSpice 数据 接口技术

    上传时间: 2013-10-20

    上传用户:wuchunzhong

  • WP276 -可编程的开发和测试

    We all know the benefits of using FieldProgrammable Gate Arrays (FPGAs): no NRE, nominimum order quantities, and faster time-tomarket.In an ideal world, designs would never needto be changed because of design errors, but we allknow that sometimes this is necessary.

    标签: 276 WP 可编程 测试

    上传时间: 2013-11-04

    上传用户:leixinzhuo

  • XAPP444 - CPLD配件,技巧和窍门

    Most designers wish to utilize as much of a device as possible in order to enhance the overallproduct performance, or extend a feature set. As a design grows, inevitably it will exceed thearchitectural limitations of the device. Exactly why a design does not fit can sometimes bedifficult to determine. Programmable logic devices can be configured in almost an infinitenumber of ways. The same design may fit when you use certain implementation switches, andfail to fit when using other switches. This application note attempts to clarify the CPLD softwareimplementation (CPLDFit) options, as well as discuss implementation tips in CoolRunnerTM-IIdesigns in order to maximize CPLD utilization.

    标签: XAPP CPLD 444 配件

    上传时间: 2014-01-11

    上传用户:a471778