任務(wù)1 廣告燈電路的制作 任務(wù)2 音頻控制電路的制作 任務(wù)3 繼電器控制電路的制作 任務(wù)4 程序調(diào)試 任務(wù)5 程序燒寫
上傳時(shí)間: 2013-10-29
上傳用戶:ZOULIN58
MSP430和ARM7是兩個(gè)完全不同體系構(gòu)架的處理器,因此雖一些在應(yīng)用上具有共性的問題做個(gè)簡要比較。 目前在應(yīng)用中比較普遍關(guān)心的是 速度和功耗、 應(yīng)用范圍、內(nèi)部資源、硬件設(shè)計(jì)、設(shè)計(jì)周期、成本考慮
標(biāo)簽: ARM7 430 MSP 單片機(jī)
上傳時(shí)間: 2013-10-22
上傳用戶:wenwiang
針對目前使用的RS232接口數(shù)字化B超鍵盤存在PC主機(jī)啟動時(shí)不能設(shè)置BIOS,提出一種PS2鍵盤的設(shè)計(jì)方法。基于W78E052D單片機(jī),采用8通道串行A/D轉(zhuǎn)換器設(shè)計(jì)了8個(gè)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(jī)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(jī)可設(shè)置BIOS同時(shí),又可實(shí)現(xiàn)超聲特有功能,不需要專門設(shè)計(jì)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.
標(biāo)簽: 單片機(jī) B超 數(shù)字化 鍵盤設(shè)計(jì)
上傳時(shí)間: 2013-10-10
上傳用戶:asdfasdfd
在航電系統(tǒng)維護(hù)過程中,為解決定位故障的效率和降低維修成本等問題,提出了基于ICD(Interface Control Document,接口控制文件)的1553B總線的信息監(jiān)控系統(tǒng)模型。該系統(tǒng)運(yùn)用數(shù)據(jù)采集卡對總線中傳輸?shù)男盘栍袩o失真、偏差等電氣特性進(jìn)行檢測,并使用1553B通訊卡通過測控軟件LabWindows/CVI編程與ICD數(shù)據(jù)庫的動態(tài)鏈接,實(shí)現(xiàn)總線信息的解析和故障的判斷。與傳統(tǒng)的維護(hù)過程相比,這種模型能夠從信號的電氣特性以及信息的解析等全方位的去檢測判斷故障的來源,并且能夠廣泛在其他1553B總線系統(tǒng)內(nèi)擴(kuò)展應(yīng)用。驗(yàn)證表明該監(jiān)控系統(tǒng)可以對總線信息進(jìn)行快速有效地監(jiān)測分析,能滿足應(yīng)用需求。 Abstract: In the process of avionics system maintenance, to solve the problems such as improving the efficiency of fast orientation to troubles and reducing maintenance cost, system of 1553B bus information monitor model based on ICD was proposed. The system observed whether the data which transmitted on the bus appear distortion and deviation by using data acquisition card. And using 1553B communication card programming of the measure software LabWindows/CVI and the dynamic linking of ICD database, message analysis and fault estimation could be realized. Compared with traditional maintenance, this model can all-dimensionally detect and analyze the source of faults from both electrical characteristics of the signal and message analysis, and it can be widely applied in the other 1553B system. Experiment shown that this monitor system can effectively detect and analyze the bus message and can meet the application requirements.
標(biāo)簽: 1553B 總線 信息監(jiān)控
上傳時(shí)間: 2013-11-23
上傳用戶:18752787361
第一章:MCS-51系列單片機(jī)的存儲結(jié)構(gòu)(4學(xué)時(shí)) ① 掌握內(nèi)部數(shù)據(jù)寄存器RAM的結(jié)構(gòu)、用途和特點(diǎn); ② 程序存儲器ROM的結(jié)構(gòu)特點(diǎn),編程中應(yīng)注意的問題; ③ 片內(nèi)、外程序存儲器的確定方法。 .. 第二章:MCS-51單片機(jī)指令系統(tǒng)及時(shí)序(4學(xué)時(shí)) ① 111條指令的功能分類; ② 指令的尋址方式; ③ 偽指令及匯編語言源程序的格式; ④ 與指令的相關(guān)時(shí)序。 第三章:MCS-51單片機(jī)內(nèi)部模塊的功能介紹(8學(xué)時(shí)) ① 內(nèi)部并行I/O端口的結(jié)構(gòu)特點(diǎn)、使用中的注意事項(xiàng); ② 定時(shí)/計(jì)數(shù)器的2種工作方式、4種計(jì)數(shù)模式; ③ 串行接口的4種工作模式的設(shè)定及波特率的計(jì)算; ④ 中斷系統(tǒng)的結(jié)構(gòu)、中斷響應(yīng)的過程和編程方法。 .. 第四章:MCS-51單片機(jī)系統(tǒng)的擴(kuò)展及應(yīng)用(8學(xué)時(shí)); ① 系統(tǒng)擴(kuò)展的幾種方法; ② 外部程序、數(shù)據(jù)存儲器的擴(kuò)展; ③ A/D、D/A轉(zhuǎn)換器與單片機(jī)的接口電路及編程方法; ④ 鍵盤掃描/動態(tài)顯示接口電路; ⑤ 單片機(jī)的監(jiān)控電路等。
標(biāo)簽: 單片機(jī) 綜合設(shè)計(jì)
上傳時(shí)間: 2013-10-17
上傳用戶:熊少鋒
為了有效地提升鉛酸蓄電池的使用壽命,同時(shí)實(shí)現(xiàn)對充電過程的監(jiān)控,設(shè)計(jì)出一種用單片機(jī)控制的36 V鉛酸蓄電池充電電源。本電路采用反激式拓?fù)洌B續(xù)電流工作模式,電源管理IC設(shè)計(jì)在電源的副邊,由ELAN公司的EM78P258N單片機(jī)模擬,是用可編程器件模擬電源管理IC,實(shí)現(xiàn)智能電源低成本化的一次成功嘗試,通過對單片機(jī)的軟件設(shè)計(jì)實(shí)現(xiàn)了充電電源的狀態(tài)顯示、充電時(shí)間控制、報(bào)警、過溫保護(hù)、過壓保護(hù)、過流保護(hù)等功能。本充電器真正的實(shí)現(xiàn)了鉛酸蓄電池的三段式充電過程,其最高輸出功率可達(dá)90 W,效率約85%,成本不到20元,具有很高的市場競爭力。 Abstract: In order to extend the life of lead-acid battery efficiently and supervise the charging process meanwhile, a 36V lead-acid battery charge powe supply controlled by microcontroller is designed. The charger is flyback switching power supply and works in CCM mode. A EM78P258N microcontroller made by ELAN microelectronics corporation is used as power management IC which is designed at the secondary circuit. The project is a successful attempt to low-cost intelligent power used microcontroller simulating power management IC. The charger also has the functions of the status reveal, charge time control, alarming, thermal protect, current limit and overvoltage protect by the software design. The circuit actually implements the three-step charge process, whose power is up to 90W and whose efficiency can get 85%. The net cost of this charger is less than 20 RMB, so that the charger is of powerful market competitiveness.
標(biāo)簽: 單片機(jī)控制 充電電源 鉛酸蓄電池
上傳時(shí)間: 2013-11-16
上傳用戶:cepsypeng
學(xué)習(xí)單片機(jī)離不開實(shí)驗(yàn),以往單片機(jī)的實(shí)驗(yàn)往往依賴于仿真機(jī)和單片機(jī)學(xué)習(xí)系統(tǒng),價(jià)格 昂貴,至使學(xué)習(xí)單片機(jī)的門檻很高,很多人不能跨入單片機(jī)學(xué)習(xí)的大門。近年來,隨著FLASH 型單片機(jī)的廣泛應(yīng)用,采用軟件模擬加寫片驗(yàn)證成為一種經(jīng)濟(jì)實(shí)用的實(shí)驗(yàn)方法,尤其是隨著 單片機(jī)技術(shù)的發(fā)展,很多單片機(jī)都具有了ISP 功能,只要一根下載線即可以編程。STC 單片 機(jī)更是將其ISP 功能發(fā)揮極致,只要有RS232 接口,不需任何其他電路即可實(shí)現(xiàn)ISP 功能。。 多年前,本網(wǎng)站為單片機(jī)愛好者設(shè)計(jì)了實(shí)驗(yàn)電路板,并公開了全部的軟、硬件資料,廣 受愛好者歡迎,很多人使用這塊實(shí)驗(yàn)電路板學(xué)習(xí)并由此入門,同時(shí)網(wǎng)絡(luò)上也出現(xiàn)了很多同類 功能的實(shí)驗(yàn)電路板,為廣大愛好者學(xué)習(xí)單片機(jī)創(chuàng)造了良好的條件。
標(biāo)簽: ISP 單片機(jī)實(shí)驗(yàn)板
上傳時(shí)間: 2014-11-29
上傳用戶:540750247
為解決當(dāng)前計(jì)算機(jī)串行通訊接口只有USB,難以滿足舊型號設(shè)備或某些單片機(jī)要求RS232通訊的問題,設(shè)計(jì)出兩款RS232/USB電路。采用CH341A與MAX223集成電路芯片構(gòu)建標(biāo)準(zhǔn)9線RS232/USB通用接口轉(zhuǎn)換器,無需編程。采用CH341A與PIC16F877A構(gòu)建單片機(jī)與計(jì)算機(jī)之間的USB通訊電路,軟件遵循RS232通訊協(xié)議,硬件進(jìn)行電平轉(zhuǎn)換。實(shí)際使用表明,這兩款產(chǎn)品與計(jì)算機(jī)端Windows 操作系統(tǒng)下的串口應(yīng)用程序完全兼容,且通訊過程中無握手失敗現(xiàn)象。 Abstract: To solve the problem that current computer serial communication only with USB interface can not satisfy with the old type equipments or MCU to communicate with RS232, two kinds of RS232/USB circuit were designed.CH341A and MAX223 integrated circuit chips were used to create a standard 9-line RS232/USB universal interface convertor without programme. CH341A and PIC16F877A chips were adopted to build the USB communication circuit between computers and MCU. The software follows RS232 communication protocol, and the hardware converts electrical levels. Actual practices indicate that the two manufactures are compatible with serial application program of Windows operation system completely,and get avoid of handshake lost.
上傳時(shí)間: 2013-11-03
上傳用戶:siying
摘 要: 閥門開度儀以AT89C51單片機(jī)為核心, 通過在閥門電機(jī)軸上安裝的電位計(jì)傳感器獲得閥 門電機(jī)軸的轉(zhuǎn)動角位移, 從而得出閥門的開度, 達(dá)到自動檢測的目的。詳細(xì)介紹了串行控制的10 位A /D轉(zhuǎn)換器TLC1549的特點(diǎn)和功能, 說明了TLC1549與AT89C51單片機(jī)在閥門開度儀中的硬件 電路和軟件程序。實(shí)踐證明, 該閥門開度儀數(shù)據(jù)采集準(zhǔn)確可靠、工作穩(wěn)定。 關(guān)鍵詞: TLC1549; AT89C51單片機(jī); 閥門開度
上傳時(shí)間: 2013-10-14
上傳用戶:行者Xin
摘要:本文通過介紹PIc秉列單片機(jī)的優(yōu)越性和其所配置的定時(shí)器/計(jì)數(shù)器TMRo.TlⅥI“、TMR2模塊之間的共性及各自的特性,以 及PIc單片機(jī)在電機(jī)調(diào)速中的應(yīng)用。 關(guān)鍵詞:單片機(jī)定時(shí)器/計(jì)數(shù)囂TMRo,TMRl,TMR2 電機(jī)
標(biāo)簽: PIC 單片機(jī)定時(shí)器 模塊
上傳時(shí)間: 2013-10-14
上傳用戶:dingdingcandy
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