提出了一个由AT89C52单片机控制步进电机的实例。可以通过键盘输入相关数据, 并根据需要, 实时对步进电机工作方式进行设置, 具有实时性和交互性的特点。该系统可应用于步进电机控制的大多数场合。实践表明, 系统性能优于传统的步进电机控制器。关键词: 单片机; 步进电动机; 直流固态继电器; 实时控制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
标签： Control System ingMot Stepp
上传时间： 2013-11-19
上传用户：leesuper
这是一本电子编程的好书！
上传时间： 2013-12-12
上传用户：6546544
LAYOUT REPORT .............. 1 目錄.................. 1 1. PCB LAYOUT 術語解釋(TERMS)......... 2 2. Test Point : ATE 測試點供工廠ICT 測試治具使用............ 2 3. 基準點 (光學點) -for SMD:........... 4 4. 標記 (LABEL ing)......... 5 5. VIA HOLE PAD................. 5 6. PCB Layer 排列方式...... 5 7.零件佈置注意事項 (PLACEMENT NOTES)............... 5 8. PCB LAYOUT 設計............ 6 9. Transmission Line ( 傳輸線 )..... 8 10.General Guidelines – 跨Plane.. 8 11. General Guidelines – 繞線....... 9 12. General Guidelines – Damping Resistor. 10 13. General Guidelines - RJ45 to Transformer................. 10 14. Clock Routing Guideline........... 12 15. OSC & CRYSTAL Guideline........... 12 16. CPU
上传时间： 2013-10-29
上传用户：1234xhb
The goal with this project was to make it possible for almost any mobile-phone to use ICQ and be able to communicate with other users! One other goal with this project was to lower the GPRS-traffic in the phone and make the ICQ-ing cheaper. A third goal was to make this service as easy to log-in to as possible. Anyone tried to fill a log-in screen with a WAP-browser should know what I mean. With Wapmess all you have to do is to write your login-url ONCE and then bookmark it in your phone, to make it available fast. :)
标签： mobile-phone possible project almost
上传时间： 2015-04-08
上传用户：xiaodu1124
这是一篇关于turbo码的原始论文，Near optimum error correcting cod ing and decoding turbo codes，可供学习参考之用。
上传时间： 2014-01-24
上传用户：pkkkkp
//*** *** *** *** *** *** *** *** *** *** *** *** *** // MSP430x1xx Demo - Software Toggle P1.0 // // Description Toggle P1.0 by xor ing P1.0 inside of a software loop. // ACLK = n/a, MCLK = SMCLK = default DCO // // MSP430x1xx // ----------------- // /|\| XIN|- // | | | // --|RST XOUT|- // | | // | P1.0|-->LED // // A. Dannenberg // Texas Instruments, Inc // January 2006 // Built with IAR Embedded Workbench Version: 3.40A
上传时间： 2015-12-10
上传用户：从此走出阴霾
KmdTut是一份以Win32汇编语言来开发Kernel mode驱动程序的教程，读者可以从http://www.freewebs.com/four-f/下载最新的英文版本，为了使用本教程，你还需要下载Kernel mode驱动程序开发包KmdKit，更多信息请参考http://www.wasm.ru/（很不幸，是俄文的，倒ing～～～）
上传时间： 2014-12-01
上传用户：671145514
KmdTut是一份以Win32汇编语言来开发Kernel mode驱动程序的教程，读者可以从http://www.freewebs.com/four-f/下载最新的英文版本，为了使用本教程，你还需要下载Kernel mode驱动程序开发包KmdKit，更多信息请参考http://www.wasm.ru/（很不幸，是俄文的，倒ing～～～） 0.2 关于KmdKit KmdKit的全称是Kernel Mode Driver development Kit for assembly language programmers，即内核模式驱动程序汇编开发包，KmdKit中包括了用宏汇编编译器开发驱动程序需要用到的所有东西。 你可以从http://www.wasm.ru/或者http://www.freewebs.com/four-f/下载到最新版本的KmdKit。
上传时间： 2014-01-11
上传用户：Ants
//*** *** *** *** *** *** *** *** *** *** *** *** *** * // MSP-FET430x110 Demo - Software Toggle P1.0 // // Description: Toggle P1.0 by xor ing P1.0 inside of a software loop. // ACLK = n/a, MCLK = SMCLK = default DCO ~800k // // MSP430F1121 // ----------------- // /|\| XIN|- // | | | // --|RST XOUT|- // | | // | P1.0|-->LED // // M. Buccini // Texas Instruments Inc. // Feb 2005 // Built with IAR Embedded Workbench Version: 3.21A
标签： Software MSP-FET Toggle Demo
上传时间： 2014-01-09
上传用户：问题问题
A semantic session analysis method partitioning Web usage logs is presented．Semantic W eb usage log preparation model enhances usage logs with semantic．The M arkov chain mode1 based on ontology semantic measurement is used to identi． ing which active session a request should belong to．The corn— petitive method is applied to determine the end of the sessions． Compared with other algorithms，more successfu1 sessions are additionally detected by semantic outlier analysis．
标签： usage partitioning presented semantic
上传时间： 2016-08-06
上传用户：gxrui1991
