詳細(xì)介紹工控軟件組態(tài)王與單片機(jī)多機(jī)串口通訊的設(shè)計(jì)原理。分析組態(tài)王提供的直接與單片機(jī)串口通信方法的優(yōu)點(diǎn)，給出系統(tǒng)基于RS-485總線傳輸?shù)慕涌陔娐吩韴D。根據(jù)組態(tài)王提供的通訊協(xié)議和單片機(jī)多機(jī)串口通訊的原理，給出程序設(shè)計(jì)流程與思路。 Abstract: In this paper，the design principle of communication between multi-SCM and KingView by serial ports is described in detail.We analysis the advantage of method supplied by KingView,by which KingView can communicate with serial ports of SCM directly，and provide the system’s interface circuit based on the RS-485transmission line.We provide flow diagram of programming and thinking on the basis of communication protocol supplied by KingView and principle of communication among multi-SCM through serial ports.
標(biāo)簽： 工控軟件 單片機(jī) 串口通訊 多機(jī)
上傳時間： 2013-12-19
上傳用戶：tecman
以89S52單片機(jī)和EP1C6Q240C8型FPGA為控制核心的多功能計(jì)數(shù)器，是由峰值檢波、A/D轉(zhuǎn)換、程控放大、比較整形、移相網(wǎng)絡(luò)部分組成,可實(shí)現(xiàn)測量正弦信號的頻率、周期和相位差的功能。多功能計(jì)數(shù)器采用等精度的測量方法，可實(shí)現(xiàn)頻率為1Hz～10MHz、幅度為0.01～5Vrms的正弦信號的精確測頻，以及頻率為10Hz～100kHz、幅度為0.5～5Vrms的正弦信號精確測相。液晶顯示器能夠?qū)崟r顯示當(dāng)前信號的頻率、周期和相位差。該多功能計(jì)數(shù)器精度高，界面友好，實(shí)用性強(qiáng)。 Abstract: A multi-function counter，which uses89S52MCU and EP1C6Q240C8FPGA as a control core，consists of peak detector，A/D conversion，program-controlled amplification，compared shaping and phase-shifting network part.The counter measures the frequency，period and phase of sinusoidal signal.With the equal precision method,the multi-function counter achieves the precise frequency measurement of the sinusoidal signal which its frequency is from1Hz to10MHz，its amplitude is from0.01Vrms to5Vrms，as well as the accurate phase measurement of the sinusoidal signal which its frequency is from10Hz to100kHz，its amplitude is from0.5Vrms to5Vrms.The LCD monitor real-time displays the frequency，period and phase difference of current signal.The multi-function counter features high precision，friendly interface，and strong practical.
標(biāo)簽： FPGA 單片機(jī) 多功能 計(jì)數(shù)器
上傳時間： 2013-11-15
上傳用戶：gy592333
介紹一種多功能音樂播放器，它是以AT89S52單片機(jī)為核心，并輔有一些外圍器件，采用匯編語言編寫程序，實(shí)現(xiàn)多功能音樂播放，歌曲自動循環(huán)播放和使用琴鍵自編曲目功能。此外，彩燈顯示歌曲節(jié)奏，按鍵跳轉(zhuǎn)到喜愛曲目，液晶顯示當(dāng)前播英文曲目。并給出了系統(tǒng)軟硬件設(shè)計(jì)。 Abstract: It introduces a multifunctional music player,taking AT89S52 single-chip microcomputer as hardware control core and using some peripheral elements.Programmes are compiled in assembly language to act as expected.There are two functional modes in this system.One is to make the music play automatically and consecutively,the other is to compose new songs through keys.In addition,lights show the pace of music and the English names can be displayed in the liquid crystal screen.With perfect combination of hardware and software,the music player can meet many music lovers’needs for multifunctional music player.And the hardware and software of the system are given.
上傳時間： 2013-11-18
上傳用戶：xiaodu1124
介紹了一種基于C8051F020單片機(jī)的多路壓力測量儀。該測量儀選用電阻應(yīng)變式壓力傳感器采集壓力信號，并經(jīng)放大電路處理后送入C8051F020單片機(jī)，再由C8051F020單片機(jī)內(nèi)部的A/D轉(zhuǎn)換器將采集到的壓力信號進(jìn)行模數(shù)轉(zhuǎn)化，然后分別對數(shù)據(jù)進(jìn)行存儲和顯示。該測量儀能測量6路壓力信號，并且各測量點(diǎn)都能單獨(dú)檢測和設(shè)置。由于采用了C8051F020單片機(jī)，簡化了硬件電路，增強(qiáng)了抗干擾能力，使得測量儀具有測量精度高，沖擊小等特點(diǎn)。 Abstract: A measurement apparatus for multi-channel pressure based on single chip microcomputer is introduced.It can measure 6 channels signal of the pressure，and the pressure measure points can be detection and located individually.The pressure signal sampling is obtained by resistor stress-type pressure sensors，the digital signals of 6 channels are collected through amplifying and adjustment circuit of pressure signals and internal integrated A/D converter of MCU.Finally，and it realizes the function to store and display data separately.C8051F020 was used to made hardware circuit simple，and it also enhanced the anti-interference ability.It features high precision and little impact.
標(biāo)簽： C8051F020 單片機(jī) 多路 壓力
上傳時間： 2013-11-16
上傳用戶：yare
公司簡介 應(yīng)廣科技成立于2005年2月18日資本額RMB3千萬臺灣優(yōu)良IC設(shè)計(jì)公司主要核心技術(shù):領(lǐng)先全球的平行處理多核心單片機(jī)。以軔體取代硬體設(shè)計(jì)的創(chuàng)新技術(shù)與思維。精簡的C語言編譯器。97個精簡指令開發(fā)容易，有效縮小程式空間提高工作效率。擁有全球數(shù)十項(xiàng)多核心單片機(jī)專利技術(shù)。經(jīng)專業(yè)測試認(rèn)證ESD達(dá)8千伏特以上。超高抗雜訊能力,超高抗干擾能力。
上傳時間： 2014-12-27
上傳用戶：togetsomething
摘要:討論了80C196MC單片機(jī)系統(tǒng)多微機(jī)互聯(lián)方案,該系統(tǒng)以單片機(jī)為主模塊,共享存儲器、共享I/O、總線接口及仲裁器構(gòu)成。重點(diǎn)分析了多處理機(jī)及總線接口邏輯的實(shí)現(xiàn)。關(guān)鍵詞：單片機(jī) 公共總線 多機(jī)通訊
上傳時間： 2013-11-03
上傳用戶：璇珠官人
主要介紹了以PIC18F2480單片機(jī)為處理器，基于可編程多路開關(guān)檢測接口器件MC33993實(shí)現(xiàn)的車用多路開關(guān)檢測接口電路的設(shè)計(jì)。該設(shè)計(jì)克服了以往基于分立元件的檢測接口電路的弊端，簡化了接口電路設(shè)計(jì)，保證了車用開關(guān)工作的可靠性和安全性。 Abstract: The design of automotive multiple switch detection interface circuit based on MC33993 is introduced mainly which adopts PIC18F2480 single chip microprocessor.This circuit overcomes shortage of traditional design which contains many schism elements, and the application of MC33993 also predigests the whole design of interface circuit and guarantees the dependability and security of the switch.
標(biāo)簽： 33993 MC 多路開關(guān) 檢測
上傳時間： 2013-11-19
上傳用戶：star_in_rain
介紹一種基于單片機(jī)的多路溫度采集及監(jiān)控系統(tǒng)，能夠測量6路溫度信號，具有計(jì)算機(jī)聯(lián)網(wǎng)功能，各測量點(diǎn)可以單獨(dú)監(jiān)控和設(shè)置，可根據(jù)用戶的需求自動控制。測量溫度范圍為-10 ℃～200 ℃，控制方式采用模擬量調(diào)壓模式。該系統(tǒng)具有控制精度高、沖擊小等特點(diǎn)。 Abstract: A temperature collecting and surveillance-controlling system based on sing-chip microcomputer is introduced. It can measure 6 channel signal of the temperature,and it has a function of network connection.The temperature measure points can be monitored and located, it can be controlled automatic according to user’s demand.The temperature range is -10℃ to 200℃.The model of control is adjustable voltage with simulation. It features high precision and little impact.
標(biāo)簽： 多路 溫度采集 監(jiān)控系統(tǒng)
上傳時間： 2013-10-23
上傳用戶：bjgaofei
LonWorks 推廣應(yīng)用的關(guān)鍵在于網(wǎng)絡(luò)節(jié)點(diǎn)開發(fā)， 以TP ／ FT-10F 模塊和AT89C2051 單片機(jī)為核心設(shè)計(jì)接口電路，開發(fā)了一種通用多輸入／ 輸出智能控制節(jié)點(diǎn)模塊。通過軟件調(diào)整模擬信號采集電路的量程；應(yīng)用DAC7513 使放大器輸出電壓幾乎等于電源電壓；采用二極管隔離方式簡化數(shù)字信號輸入／ 輸出電路；通過在電源引腳和接地引腳之間添加去耦電容，采用多層電路板布局，數(shù)字芯片的未用輸入端接入高電平等方法，提高了抗電磁干擾能力；采取模擬、數(shù)字電路單元內(nèi)部分別接模擬地和數(shù)字地，再將2 條地線接至一點(diǎn)的措施，有效地降低了靜態(tài)放電的影響；提出了節(jié)點(diǎn)故障診斷策略流程。該通用多輸入／ 輸出智能控制節(jié)點(diǎn)模塊運(yùn)行可靠。關(guān)鍵詞： LonWorks； 多輸入／ 輸出； 節(jié)點(diǎn)設(shè)計(jì)
標(biāo)簽： 單片機(jī) 節(jié)點(diǎn) 開發(fā)設(shè)計(jì)
上傳時間： 2013-11-23
上傳用戶：515414293
摘要：介紹利用80C31單片機(jī)串行口、廉價的74HC164和74HC244集成塊實(shí)現(xiàn)多個LED顯示的一種簡單方法，利用該方法設(shè)計(jì)的多路LED顯示系統(tǒng)具有硬件結(jié)構(gòu)簡單、軟件編程容易和價格低廉的特點(diǎn)。關(guān)鍵詞：單片機(jī) 串行口 LED 顯示 80C31
標(biāo)簽： 80C31 LED 單片機(jī) 串行口
上傳時間： 2013-12-31
上傳用戶：時代將軍
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