提出了一個由AT89C52單片機控制步進電機的實例?？梢酝ㄟ^鍵盤輸入相關(guān)數(shù)據(jù), 并根據(jù)需要, 實時對步進電機工作方式進行設(shè)置, 具有實時性和交互性的特點。該系統(tǒng)可應(yīng)用于步進電機控制的大多數(shù)場合。實踐表明, 系統(tǒng)性能優(yōu)于傳統(tǒng)的步進電機控制器。關(guān)鍵詞: 單片機; 步進電動機; 直流固態(tài)繼電器; 實時控制Con trol System of Stepp ingMotor Ba sed on AT89C52 ChipM icrocomputerMENGWu2sheng, L ILiang (College of Automatization, Northwestern Polytechnical Unversity, Xipan 710072, China)ABSTRACT: A stepp ing motor control system based on AT89C52 chip microcomputer was described.The data can be inputwith keyboard, and stepp ingmotorwas controlled by these data. According to the demand, users can set the workingmodel of stepp ingmotor in real2time. This system can be widely used in stepp ing motor controlling. The p ractice showed that the performance of this system outdid the tradi tional stepp ing motor controller.KEY WORDS: Chip microcomputer; Stepp ingmotor; DCSSR; Real2time control
標簽： Control System ingMot Stepp
上傳時間： 2013-11-19
上傳用戶：leesuper
Abstract: This application note discusses the development and deployment of 3G cellular femtocell base stations. The technicalchallenges for last-mile residential connectivity and adding system capacity in dense urban environments are discussed, with 3Gfemtocell base stations as a cost-effective solution. Maxim's 3GPP TS25.104-compliant transceiver solution is presented along withcomplete radio reference designs such as RD2550. For more information on the RD2550, see reference design 5364, "FemtocellRadio Reference Designs Using the MAX2550–MAX2553 Transceivers."
標簽： Base-Station Applications Single-Chip Transceiver
上傳時間： 2013-11-07
上傳用戶：songrui
Abstract: This application note discusses the development and deployment of 3G cellular femtocell base stations. The technicalchallenges for last-mile residential connectivity and adding system capacity in dense urban environments are discussed, with 3Gfemtocell base stations as a cost-effective solution. Maxim's 3GPP TS25.104-compliant transceiver solution is presented along withcomplete radio reference designs such as RD2550. For more information on the RD2550, see reference design 5364, "FemtocellRadio Reference Designs Using the MAX2550–MAX2553 Transceivers."
標簽： Base-Station Applications Single-Chip Transceiver
上傳時間： 2013-11-05
上傳用戶：超凡大師
PhpDig is a search engine written in PHP that uses a MySQL database backend. It features indexing of both static and dynamic pages, spidering of almost all links in HTML content, in hrefs, areamaps, and frames, and full text indexing. The search results appearence is skin-able, using a very simple templates system. PhpDig是一個用PHP編寫的搜索引擎，它使用MySQL數(shù)據(jù)庫后臺。它的功能有靜態(tài)和動態(tài)頁面索引，在HTML內(nèi)容中用hrefs, areamaps，和frames以及全文本索引構(gòu)成所有的鏈接網(wǎng)。搜索結(jié)果的外觀是可定制外觀的，使用一個非常簡單的模板系統(tǒng)。
標簽： database features indexing backend
上傳時間： 2014-01-03
上傳用戶：haohaoxuexi
系統(tǒng)可用編輯器1. Overview 2. System Requirements 3. Contents of the Distribution Package 4. List of Available Command Line Flag Options 5. Contents of the Extracted Files 6. Installing the Software in Interactive Mode 7. Installing the Software in Silent Mode 8. Installing the INF Files Prior to OS Installation 8A. Installing the Windows* XP INF Files Prior to OS Installation
標簽： Distribution Requirements Overview Contents
上傳時間： 2015-02-23
上傳用戶：wab1981
UnZip is a small zipfile extract utility. It is written to be assmall portable as possible and is intended to be starting point for im-plementation of .ZIP files in non-IBM environments.Source code is provided in C and Turbo Pascal. If you port this programto a non-IBM system, I would appreciate a copy of the ported source andexe files.
標簽： is portable possible extract
上傳時間： 2014-01-20
上傳用戶：維子哥哥
The JDOM build system is based on Jakarta Ant, which is a Java building tool originally developed for the Jakarta Tomcat project but now used in many other Apache projects and extended by many developers.
標簽： originally developed building Jakarta
上傳時間： 2014-01-19
上傳用戶：xg262122
This an adaptive receiver for a direct-sequence spread spectrum (DS-SS) system over an AWGN channel. The adaptive receiver block is modified from the LMS adaptive filter block in DSP Blockset. For DS-SS signal reception, the adaptive filter needs to have multi-rate operation. The input sample rate is equal to chip rate and the output is at symbol rate. Two rates are related by PG, processing gain
標簽： direct-sequence adaptive receiver spectrum
上傳時間： 2014-01-16
上傳用戶：D&L37
手機文件瀏覽程序的另外一個版本！ SMan is a system utility that manages your UIQ device. It provides functionality which manufacturers did not provide or which are difficult or impossible to do manually. SMan helps keep your UIQ device running in a "healthy" state and, to a certain degree, allows you to customize the system behaviour of your device.
標簽： functionality provides manages utility
上傳時間： 2013-12-09
上傳用戶：獨孤求源
this code is a simulator to simulate the paging system such as first come first service. the comment in this code can help you to run it.
標簽： first simulator the simulate
上傳時間： 2014-01-03
上傳用戶：Late_Li
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