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AVR32801: UC3A3 Schematic Chec

AVR32801: UC3A3 Schematic Checklist Features • Power circuit • Reset circuit • USB connection • External bus interface • ABDAC sound DAC interface • JTAG and Nexus debug ports • Clocks and crystal oscillators • MMC, SD-card, SDHC, SDIO and CE-ATA interface 1 Introduction A good hardware design comes from a proper schematic. Since UC3A3 devices have a fair number of pins and functions, the schematic for these devices can be large and quite complex. This application note describes a common checklist which should be used when starting and reviewing the schematics for a UC3A3 design.

標簽： Schematic 32801 UC3A3 Chec

上傳時間： 2014-12-26

上傳用戶：DXM35
基于CAN總線的綜自通訊規約設計

介紹一種基于CAN總線的牽引變電站自動化系統通訊規約的設計，CAN通訊規約采用標準幀，報文采用主動發送和發送查詢兩種處理形式。該設計在城市輕軌與地鐵牽引變電站中的應用表明：可實現間隔層和通訊處理層的數據快速、可靠的交換，提高牽引變電站的安全性和穩定性。 Abstract: This paper firstly presents a kind of design dealing with communicational protocol to the traction substation automation system based on CAN bus,and then comes up with the ideas that all frames of CAN communicational protocol should adopt the standard frame,and that messages be processed by two ways:sending initiatively and sending quiries.Subway and light rail application shows that the use of the CAN bus is possible to exchange data quickly and reliably between the layers of the middle and the communicational processing,hence to improve the safety and stability of traction substations.

標簽： CAN 總線通訊規約

上傳時間： 2013-11-07

上傳用戶：bs2005
微處理器dsPIC33F在微機保護裝置中的應用

數字信號處理器dsPIC33F集多通道高精度A/D轉換、多通訊模式、看門狗、CMOS Flash技術等于一體，其內部可完成所有數據操作，實現總線不出芯片技術。將該處理器應用于微機保護裝置，提出基于dsPIC33F微處理器的微機保護裝置的設計方案，給出相應的接口電路與軟件流程。該設計方案結構簡單，性價比及可靠性高，開發周期短，具有一定的實用推廣價值。所研制的微機保護裝置現場運行效果良好。 Abstract: The dsPIC33F microprocessor has a plentiful interior resource which contains multi-channel，high precision A/D converters，multi-communication module，watchdog，CMOS Flash technology，and so on.All data manipulations is accomplished interiorly.What is more，it makes the technology that bus does not go beyond the chip comes into practice.The paper put forwards a design scheme based on dsPIC33F microprocessor.The scheme has the advantages of simple structure，high reliability and shortened exploitation cycle.What is more，it has definite practicality and reference.The microcomputer protection device has been put into operation with excellent effects.

標簽： dsPIC 33F 33 微處理器

上傳時間： 2013-11-16

上傳用戶：開懷常笑
This Unix C code monitors a web server every few minutes by trying to retrieve its home page. It sen

This Unix C code monitors a web server every few minutes by trying to retrieve its home page. It sends you email when it can t connect, and every so often while the server is still down. It sends a final message when it comes back up. If you have email paging, just direct the email to your pager address.

標簽： monitors retrieve minutes server

上傳時間： 2015-01-11

上傳用戶：pompey
項目描述: Env_audit is a program that ferrets out everything it can about the environment. It looks for

項目描述: Env_audit is a program that ferrets out everything it can about the environment. It looks for process IDs, UID, GID, signal masks, umask, priority, file descriptors, and environmental variables. It comes with test configurations for anacron, apache, atd, crond, GDB, inittab, logrotate, PHP, pppd, procmail, rsh, rxvt, sendmail, SSH, stunnel, sudo, xinetd, and xterm. env_audit是一個搜索有關環境的所有東西的程序。它查詢進程IDs，UID, GID,信號掩碼，umask,優先權，文件描述符，和環境變量。它提供了用于anacron, apache, atd, crond, GDB, inittab, logrotate, PHP, pppd, procmail, rsh, rxvt, sendmail, SSH, stunnel, sudo, xinetd, 和xterm的測試配置。類別: Development Status: 5 - Production/Stable Environment: Console (Text Based) Intended Audience: System Administrators License: GNU General Public License (GPL) Operating System: POSIX Topic: Security

標簽： environment everything Env_audit ferrets

上傳時間： 2013-12-02

上傳用戶：qweqweqwe
The source code for "C++ Solutions". This book is a companion to the book that is widely recognized

The source code for "C++ Solutions". This book is a companion to the book that is widely recognized as "the C++ bible": The C++ Programming Language (third edition) by Bjarne Stroustrup. If you re a programmer, Bjarne s book comes very highly recommended.

標簽： book recognized Solutions companion

上傳時間： 2014-01-22

上傳用戶：努力努力再努力
OXCC is a multipass, interpreting C compiler with several language extensions. It generates an Archi

OXCC is a multipass, interpreting C compiler with several language extensions. It generates an Architecture Neutral Format (ANF) output and comes with a couple of example back ends. Programmers are expected to write additional back ends for their specific needs.

標簽： interpreting extensions generates multipass

上傳時間： 2015-04-12

上傳用戶：大三三
In most software-development organizations, the testing program functions as the final "quality gat

In most software-development organizations, the testing program functions as the final "quality gate" for an application, allowing or preventing the move from the comfort of the software-engineering environment into the real world. With this role comes a large responsibility: The success of an application, and possibly of theorganization, can rest on the quality of the software product.

標簽： software-development organizations functions the

上傳時間： 2015-05-03

上傳用戶：s363994250
Displaying large amounts of technical data in a chart can be a frustrating task. You can find tons o

Displaying large amounts of technical data in a chart can be a frustrating task. You can find tons of charting controls with fancy effects and useless features, but when it comes to displaying many curves at once, independently scaled on different axes, most of them fail.

標簽： frustrating Displaying can technical

上傳時間： 2014-01-05

上傳用戶：exxxds
利用FaxModem通過串口或TAPI接口直接發送和接收傳真一套非常不錯的傳真庫(穩定

利用FaxModem通過串口或TAPI接口直接發送和接收傳真一套非常不錯的傳真庫(穩定，高速)，幾乎支持所有的FaxModem，出自Symantec公司 Winfax 中國作者之手。一 .Some of the standard features: 1.comes with Class1, Class1.0, Class2 and Class 2.0 Fax Drivers 2.Class 1 ECM error correction . 3.Supports CCITT T.30 Specifications . 4.TAPI Support with sample code 5.Caller ID 6.Group 4 Faxing 7.Remote Fax Retrieval with password protection 二 .Function declare Reference: include\SmarFaxh.h

標簽： FaxModem TAPI 傳真串口

上傳時間： 2013-12-23

上傳用戶：xiaoyunyun