1.器件 主要分类 1.MCU2.DSP3.FPGA4.Embedded5.System on Chip MCU MCU俗称单片机,通常无操作系统,用于简单的控制,如电梯,空调等. DSP DSP叫做数字信号处理器,它的结构与MCU不同,加快了运算速度,用于复杂的计算,像离散余弦变换.快速傅里叶变换,常用于图像处理,在数码相机.MP3等设备中使用. FPGA 现场可编程门阵列,以硬件描述语言(Verilog 或 VHDL)所完成的电路设计,可以经过简单的综合与布局,快速的烧录至 FPGA 上进行…

网络监控困难 1.仅仅通过去增加特定的监控功能到交换机是不能满足运营商不断变化的需求的.(交换机需要支持网络性能问题的表达语言) 2.他们缺乏对网络深处的性能问题进行本地化的可见性,间接推断网络问题的原因 3.当前的交换机监控并没有提供相关的性能数据,没办法直观的查看性能统计信息来诊断问题 操作员使用 Marple Marple 的功能结构 数据包性能流作为基础输入流的一部分,我们称之为pktstream.Marple为每个队列中的每个分组提供一个元组,并且具有以下字段(switch, qid,…

Computer Systems A Programmer's Perspective Second Edition In this chapter, we take a brief look at the design of processor hardware. We study the way a hardware system can execute the instructions of a particular ISA. This view will give you a bette…

Computer Systems A Programmer's Perspective Second Edition We then provide some background on digital hardware design. We describe the basic building blocks used in a processor and how they are connected together and operated. This presentation build…

Warald在2012年写过一篇文章<EE现在最好就业的方向是VLSI/ASIC DESIGN VERIFICATION>,三年过去了,很多学电子工程的同学想知道现在形势如何. 首先,按照目前的形势,EE最好就业的方向是:转CS. 我可能打击了一些热爱EE的同学,但这是不争的事实,转CS.做软件,工作机会多.收入高.速度快,现实就这么骨感.如果你对EE也谈不上有啥激情和热爱,对写程序不反感甚至是还算喜欢,我的观点是劝你转CS.一亩三分地论坛里有过一个帖子:<有没有转了CS然后后悔的,出来…

reference: uboot_dir/doc/README.distro Linux distributions are faced with supporting a variety of boot mechanisms,environments or bootloaders (PC BIOS, EFI, U-Boot, Barebox, ...). This makeslife complicated. Worse, bootloaders such as U-Boot have a c…

http://www.edaboard.com/thread227388.html Hi, i have designed a 48 pin universal programmer but need help finishing it off, is anyone up for the challange? Programmer info:LPC2388 ARM7TDMI CPU with USB2XDC/DC Converters48 universal pin drivers which…

Experience of black-box testing on set-top-boxes/IP-connected devices, games consoles and tablets http://www.tested.com/tech/set-top-boxes/ Streaming media,是指將一連串的媒體數據壓縮後,經過網路分段傳送數據,在網路上實時傳輸影音,以供觀賞的一種技術與過程. Amazon Instant Video (formerly Amazon Video…

Sr.EE-Complete the electronics and mechanical designs from design concepts to mass production for RUC (Rapid Update Cycle)projects in the target quality, cost and schedule and enfore project governance(管理) - Improve the hardware design capability and…

The Best Hacking Tools Hacking Tools : List of security tools specifically aimed toward security professionals for testing and demonstrating security weaknesses.     Passwords Cain & Abel Cain & Abel is a password recovery tool for Microsoft Opera…

An apparatus and method is described herein for providing robust speculative code section abort control mechanisms. Hardware is able to track speculative code region abort events, conditions, and/or scenarios, such as an explicit abort instruction, a…

A novel massively parallel supercomputer of hundreds of teraOPS-scale includes node architectures based upon System-On-a-Chip technology, i.e., each processing node comprises a single Application Specific Integrated Circuit (ASIC). Within each ASIC n…

Name of article:Dc. p4: Programming the forwarding plane of a data-center switch Origin of the article:Sivaraman A , Kim C , Krishnamoorthy R , et al. DC.p4: programming the forwarding plane of a data-center switch.[J]. 2015. ABSTRACT: program the fo…

http://exploredegrees.stanford.edu/coursedescriptions/cs/ CS 101. Introduction to Computing Principles. 3-5 Units. Introduces the essential ideas of computing: data representation, algorithms, programming "code", computer hardware, networking, s…

移植android3.3到ZedBoard follow doc:Android移植Guide1.3.pdf follow website: http://elinux.org/Zedboard_Android (1)在Ubuntu12.04LTS下安装编译所需环境: sudo apt-get install git gnupg flex bison gperf build-essential \ zip curl libc6-dev libncurses5-dev:i386 x11proto-…

随着软件的功能需求越来越复杂,C语言不足以解决现有的问题,于是C++被发明了:C++的指针漫天飞,对内存的处理过于复杂,于是Java被发明了:芯片的功能不断地扩大,Verilog不足以应对日益复杂的芯片设计和验证,于是SystemVerilog被发明了. SystemVerilog结合了来自 Verilog.VHDL.C++的概念,还有验证平台语言(OpenVera和e语言)和断言语言(OVA和PSL),也就是说,它将硬件描述语言(HDL)与现代的高层级验证语言(HVL)结合了起来.使其对于进行…

http://elinux.org/Device_Tree_Usage Device Tree Usage     Top Device Tree page This page walks through how to write a device tree for a new machine. It is intended to provide an overview of device tree concepts and how they are used to describe a mac…

RFID读写器的工作原理 RFID的数据采集以读写器为主导,RFID读写器是一种通过无线通信,实现对标签识别和内存数据的读出和写入操作的装置. 读写器又称为阅读器或读头(Reader).查询器(Interrogator).读出装置(Reading Device). 扫描器(Scanner).通信器(Communicator).编程/编码器(Programmer)等等. 读写器工作原理 RFID读写器的基本原理是利用射频信号与空间耦合传输特性,使电子标签与阅读器的耦合元件在射频耦合通道内进行能量传…

中国计算机学会推荐国际学术期刊 (计算机系统与高性能计算) 一.A类 序号 刊物简称 刊物全称 出版社 网址 1 TOCS ACM Transactions on Computer Systems ACM http://tocs.acm.org/ 2 TOC IEEE Transactions on Computers IEEE http://www.computer.org/portal/web/tc 3 TPDS IEEE Transactions on Parallel and Distr…

The C10K problem [Help save the best Linux news source on the web -- subscribe to Linux Weekly News! ] It's time for web servers to handle ten thousand clients simultaneously, don't you think? After all, the web is a big place now. And computers are …

http://www.extremetech.com/computing/51994-the-naked-truth-about-anisotropic-filtering 1. 为什么在纹理采样时需要texture filter(纹理过滤). 我们的纹理是要贴到三维图形表面的,而三维图形上的pixel中心和纹理上的texel中心并不一至(pixel不一定对应texture上的采样中心texel),大小也不一定一至.当纹理大于三维图形表面时,导至一个像素被映射到许多纹理像素上;当维理小于三维图形…

This 125 kHz RFID reader http://www.serasidis.gr/circuits/RFID_reader/125kHz_RFID_reader.htm http://www.serasidis.gr/circuits/RFID_reader/images/125kHz_RFID_reader_schem.GIF I will try to explain with simple words how the RFID works. The ATtiny13 use…

Below is a list for collecting all the Autodesk 2015 Product Keys:      [*]AutoCAD 2015 001G1      [*]AutoCAD Architecture 2015 185G1      [*]AutoCAD Civil 3D 2015 237G1      [*]AutoCAD Design Suite Premium 2015 768G1      [*]AutoCAD Design Suite Sta…

AUTODESK 2014通用安装序列号: 666-69696969 667-98989898 400-45454545 066-66666666 AUTODESK 2014全系列产品密钥 001F1 AutoCAD 2014 057F1 AutoCAD LT 2014 128F1 Autodesk 3ds Max 2014 129F1 AutoCAD Map 3D 2014 140F1 AutoCAD OEM 2014 151F1 RealDWG 2014 185F1 AutoCAD Arch…

OMAP4开发资源总结: 一.TI OMAP4官网介绍: http://www.ti.com.cn/general/cn/docs/wtbu/wtbuproductcontent.tsp?templateId=6123&navigationId=12843&contentId=53243 二.OMAPpedia.org,This site has information on various projects in the communityaround OMAP platforms ht…

链接:http://blog.chinaunix.net/uid-730738-id-3266690.html    作者:chenzhufly 从BeagleBone谈AM335x硬件系统设计 日期:2012-04-25    如果不是要试用BeagleBone,也不会花着大把的时间去研究AM335X的硬件系统设计,这些天翻阅了TI好多的文档资料,有一些小小的心得,和大家共享一下,全当做个记录,时间久了可以回来翻翻.      关于AM335X的硬件系统介绍可以参考这个链接:http://pr…

IEEE 754-1985 was an industry standard for representing floating-point numbers in computers, officially adopted in 1985 and superseded in 2008 by IEEE 754-2008. During its 23 years, it was the most widely used format for floating-point computation. I…

CODE: #!/usr/bin/python # -*- coding: utf-8 -*- ''' Created on 2014-8-18 @author: guaguastd @name: job_position_display.py ''' # import login from login import linkedin_login # import json import json # access to linkedin api linkedin_api = linkedin_…

Basic Data Format The device tree is a simple tree structure of nodes and properties. Properties are key-value pairs, and node may contain both properties and child nodes. For example, the following is a simple tree in the .dts format: / { node1 { a-…

Zedboard OLED Display Controller IP v1 介绍 Author:zhangxianhe 本文档提供了快速添加,连接和使用ZedboardOLED v1.0 IP内核的说明.运行在ARM处理器系统上的测试应用程序用于通过其驱动程序的功能与IP进行通信. Vivado设计套件被用作开发环境.硬件验证是在Zedboard上完成的,然而,这个IP可以很容易地应用于其他主板或嵌入式系统. 平台 硬件:Zedboard xc7z020clg484-1 软件:Vivado 2…