·【作 者】 I. Scott MacKenzie同作者書籍 【出 版 社】 Prentice hall 【書 號】 0137800088 【開 本】 16 開 【頁 &nbs
標(biāo)簽： nbsp Microcontroller 8051 The
上傳時間： 2013-07-14
上傳用戶：邶刖
Practical FPGA Programming in C \r\nBy David Pellerin, Scott Thibault \r\nPublisher: Prentice hall PTR \r\nPub Date: April 22, 2005 \r\nISBN: 0-13-154318-0 \r\nPages: 464 \r\n
標(biāo)簽： Programming Practical FPGA in
上傳時間： 2013-08-31
上傳用戶：firstbyte
高速數(shù)字系統(tǒng)設(shè)計下載pdf:High-Speed Digital SystemDesign—A Handbook ofInterconnect Theory and DesignPracticesStephen H. hallGarrett W. hallJames A. McCallA Wiley-Interscience Publication JOHN WILEY & SONS, INC.New York • Chichester • Weinheim • Brisbane • Singapore • TorontoCopyright © 2000 by John Wiley & Sons, Inc.speeddigital systems at the platform level. The book walks the reader through everyrequired concept, from basic transmission line theory to digital timing analysis, high-speedmeasurement techniques, as well as many other topics. In doing so, a unique balancebetween theory and practical applications is achieved that will allow the reader not only tounderstand the nature of the problem, but also provide practical guidance to the solution.The level of theoretical understanding is such that the reader will be equipped to see beyondthe immediate practical application and solve problems not contained within these pages.Much of the information in this book has not been needed in past digital designs but isabsolutely necessary today. Most of the information covered here is not covered in standardcollege curricula, at least not in its focus on digital design, which is arguably one of the mostsignificant industries in electrical engineering.The focus of this book is on the design of robust high-volume, high-speed digital productssuch as computer systems, with particular attention paid to computer busses. However, thetheory presented is applicable to any high-speed digital system. All of the techniquescovered in this book have been applied in industry to actual digital products that have beensuccessfully produced and sold in high volume.Practicing engineers and graduate and undergraduate students who have completed basicelectromagnetic or microwave design classes are equipped to fully comprehend the theorypresented in this book. At a practical level, however, basic circuit theory is all thebackground required to apply the formulas in this book.
標(biāo)簽： 高速數(shù)字 系統(tǒng)設(shè)計
上傳時間： 2013-10-26
上傳用戶：縹緲
生活中許多目標(biāo)的高度和水平距離需要進(jìn)行測量。目前主要的測量方法，仍以傳統(tǒng)的皮尺丈量為主，測量效率不高，有時還很不方便，沒有技術(shù)成熟的數(shù)字式測高測距產(chǎn)品。以基本的數(shù)學(xué)方法為理論依據(jù)，利用遙控小車做為載體，采用角度傳感器測量角度、霍爾傳感器測量水平距離等，通過單片機LM3S615進(jìn)行數(shù)據(jù)計算，實現(xiàn)了對待測目標(biāo)物體的高度、水平距離等數(shù)據(jù)的快速、精確和數(shù)字式的測量，高度測量精度可達(dá)99.06%，水平測量精度則可達(dá)98.06%。 Abstract: In our lives， the height and horizontal distance of some goals are needed to be measured. Because the currently used methods are still traditional tape-based measuring methods， and the measuring efficiency is low and inconvenient so some kinds of digital and portable measuring methods or instruments are needed. Based on the basic math theory， this paper designed and manufactured a portable， digital and remote controlled measuring mobile small vehicle， which assembled with angle measuring sensor for angle measurement and hall sensor for horizontal distance measuring. MCU LM3S615 calculated the height and horizontal distance data gotten from these sensors. The measuring process is simple， the measuring results are more accurate and the measuring efficiency is higher than traditional measure instruments. The accuracy of height and distance measurement can reach 99.06% and 98.06%.
上傳時間： 2013-10-30
上傳用戶：jackandlee
針對目前汽車追尾事件頻發(fā)問題，提出一種防汽車車前和車后追尾的安全裝置設(shè)計。該設(shè)計以高性能、低功耗的8位AVR微處理器ATmega8L為核心，結(jié)合霍爾式車速傳感器、激光雷達(dá)測距裝置和MMA7260QT加速度傳感器，能夠兼顧車前和車后，摒棄以往設(shè)計中只考慮車前或車后單一性缺點，尤其適用于高速、夜晚或新手行車。 Abstract: Aiming at the high frequency of vehicle rear-end collision，a safe device design of anti-vehicle rear-end collision is presented.In the design，the high-performance，low-power8-bit AVR microprocessor ATmega8L is utilized as a core combined with hall-type speed sensor，laser-radar ranging devices and the acceleration sensor MMA7260QT.The design considers both the front and back of a car，and overcomes the drawbacks of former designs in which only the front or the back of the car is considered，so it is especially suitable for high-speed，night or the beginner’s driving.
上傳時間： 2013-10-14
上傳用戶：GavinNeko
介紹了采用ATmega48單片機實現(xiàn)三相無刷直流電機控制器的方法。利用Atmega48獲得帶死區(qū)的脈寬調(diào)制（PWM）、霍爾傳感器的換相處理、正弦驅(qū)動信號的產(chǎn)生和電機轉(zhuǎn)速的控制等功能。采用該方法的優(yōu)點是所需的外圍器件少，成本低。 Abstract: The method of 3-phase brushless DC motor control based on ATmega48 is presented in this paper.The system uses ATmega48 to generate PWM signals with dead-time, hall sensors signals commutation，sine driving signal and rotational speed of motor.Using this method，the needed external devices are few, the cost is low.
上傳時間： 2013-12-09
上傳用戶：330402686
程序是我用DSP2812開發(fā)的無刷直流電機控制程序，程序是在TI公司的BLDC3_1軟件的基礎(chǔ)上構(gòu)造的，實現(xiàn)了無刷直流電機的速度環(huán)PID控制，并且可以進(jìn)行無刷直流電機的高級控制算法研究，擴展及其方便。 其中，無刷直流電機控制系統(tǒng)是有hall傳感器的系統(tǒng)，電機是24V3000rpm驅(qū)動板是類似TI公司的DMC1500板卡。歡迎交流
上傳時間： 2014-01-10
上傳用戶：wsf950131
附件程序是我用DSP2812開發(fā)的無刷直流電機控制程序，程序是在TI公司的BLDC3_1軟件的基礎(chǔ)上構(gòu)造的，實現(xiàn)了無刷直流電機的速度環(huán)PID控制，效果可以。 其中，無刷直流電機是有hall傳感器的系統(tǒng)，所以在轉(zhuǎn)速測量上還需要進(jìn)一步的改進(jìn)（如果要求精確的話）。電機是24V3000rpm～～～；驅(qū)動板是類似TI公司的DMC1500？板卡，所以可以參考它的說明（只針對信號的連接的參考）
上傳時間： 2015-07-19
上傳用戶：cuibaigao
The Windows 2000 Device Driver Book, A Guide for Programmers, Second Edition Art Baker Jerry Lozano Publisher: Prentice hall PTR Second Edition November 20, 2000 ISBN: 0-13-020431-5, 480 pages
標(biāo)簽： Programmers Edition Windows Device
上傳時間： 2015-09-10
上傳用戶：LouieWu
軟件開發(fā)工程是有趣的、多產(chǎn)的，甚至是大膽的。同時，它也能源源不斷地帶來商業(yè)價值，并保持在我們的掌控之下。 極限編程(XP)的構(gòu)思和發(fā)展是針對小型團(tuán)隊進(jìn)行軟件開發(fā)時，在面對不確知的、變化的需求時所產(chǎn)生的特定需要的。這一新的、輕量級的方法學(xué)對許多傳統(tǒng)思維提出了挑戰(zhàn)，這其中包括一個一直以來的假設(shè)，即在軟件開發(fā)過程中，對軟件進(jìn)行一個小小的改動就必然會使其開發(fā)成本大大增加。極限編程認(rèn)可軟件開發(fā)工程應(yīng)該節(jié)約成本，而且一旦實現(xiàn)了某種節(jié)約就應(yīng)該加以開發(fā)利用。 你可以喜歡XP，也可以恨它，但是本書將會使你對如何開發(fā)軟件有一個全新的認(rèn)識。KentBeck擁有并經(jīng)營著First Class軟件公司，在這里他把主要精力放在兩個最大的興趣上——模式和極限編程。他一直在研究軟件開發(fā)的先驅(qū)模式、CRC卡、HotDraw畫圖編輯器框架、xUnit單元測試框架以及測試為先的編程。他發(fā)表了五十多篇關(guān)于編程的文章，并出版了《The Smalltalk Best Practice Patterns》(Prentice-hall出版社)和《Kent Beck’s Guide to Better Smalltalk：A Sorted Collection》(劍橋大學(xué)出版社)兩本著作，同時他還是超級暢銷書《重構(gòu)——改善既有代碼的設(shè)計》(中英文版皆由中國電力出版社出版)的特約撰稿人。
上傳時間： 2015-10-02
上傳用戶：邶刖
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