dsp hư ớ ng dẫ n giao tiế p LCD code viế t bằ ng C
上傳時間： 2017-06-17
上傳用戶：xuanjie
針對目前使用的RS232接口數(shù)字化B超鍵盤存在PC主機啟動時不能設(shè)置BIOS，提出一種PS2鍵盤的設(shè)計方法。基于W78E052D單片機，采用8通道串行A/D轉(zhuǎn)換器設(shè)計了8個TGC電位器信息采集電路，電位器位置信息以鍵盤掃描碼序列形式發(fā)送，正交編碼器信號通過XC9536XL轉(zhuǎn)換為單片機可接收的中斷信號，軟件接收到中斷信息后等效處理成按鍵。結(jié)果表明，在滿足開機可設(shè)置BIOS同時，又可實現(xiàn)超聲特有功能，不需要專門設(shè)計驅(qū)動程序，接口簡單，成本低。 Abstract: Aiming at the problem of the digital ultrasonic diagnostic imaging system keyboard with RS232 interface currently used couldn?蒺t set the BIOS when the PC boot， this paper proposed a design method of PS2 keyboards. Based on W78E052D microcontroller，designed eight TGC potentiometers information acquisition circuit with 8-channel serial A/D converter， potentiometer position information sent out with keyboard scan code sequentially.The control circuit based on XC9536 CPLD is used for converting the mechanical actions of the encoders into the signals that can be identified by the MCU， software received interrupt information and equivalently treatmented as key. The results show that the BIOS can be set to meet the boot， ultrasound specific functionality can be achieved at the same time， it does not require specially designed driver，the interface is simple and low cost.
上傳時間： 2013-10-10
上傳用戶：asdfasdfd
palm編成,這種書很少,有興趣看看 Title: Palm Programming: The Developer s Guide URL: http://safari.oreilly.com/JVXSL.asp?x=1&mode=section&sortKey=rank&sortOrder=desc&view=book&xmlid=1-56592-525-4&open=false&srchText=palm+programming&code=&h=&m=&l=1&catid=&s=1&b=1&f=1&t=1&c=1&u=1&page=0 ISBN: 1-56592-525-4 Author: Julie McKeehan/ Neil Rhodes Publisher: O Reilly Page: 478 Edition: 1st edition (December 1998) Catalog: PDA programming / Palm Format: pdf Size: 2.06M Supplier: Summary: Emerging as the bestselling hand-held computers of all time, PalmPilots have spawned intense developer activity and a fanatical following. Used by Palm in their developer training, this tutorial-style book shows intermediate to experienced C programmers how to build a Palm application from the ground up. Includes a CD-ROM with source code and third-party developer tools
標簽： Programming Developer oreilly safari
上傳時間： 2013-12-10
上傳用戶：litianchu
ITU-T G.729語音壓縮算法。 description: Fixed-point description of commendation G.729 with ANNEX B Coding of Speech at 8 kbit/s using Conjugate-Structure Algebraic-Code-Excited Linear-Prediction (CS-ACELP) with Voice Activity Decision(VAD), Discontinuous Transmission(DTX), and Comfort Noise Generation(CNG).
標簽： description commendation Fixed-point 729
上傳時間： 2014-11-23
上傳用戶：thesk123
21世紀大學(xué)新型參考教材系列 集成電路B 荒井
上傳時間： 2013-04-15
上傳用戶：eeworm
家電維修(最基礎(chǔ)的教程B)1-20.Torrent
上傳時間： 2013-06-10
上傳用戶：eeworm
jk-b交通信號控制機原理圖
上傳時間： 2013-07-13
上傳用戶：eeworm
專輯類-實用電子技術(shù)專輯-385冊-3.609G jk-b交通信號控制機原理圖-1.3M.zip
上傳時間： 2013-08-02
上傳用戶：zhf1234
專輯類-電子基礎(chǔ)類專輯-153冊-2.20G 21世紀大學(xué)新型參考教材系列-集成電路B-荒井-159頁-2.8M.pdf
上傳時間： 2013-05-16
上傳用戶：pkkkkp
三次B樣條曲線源代碼,C語言編寫的三次B樣條曲線源代碼，希望大家喜歡。
標簽：
上傳時間： 2013-07-13
上傳用戶：chengli008
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