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闡述了一個(gè)由上位PC機(jī)和AT89C52下位單片機(jī)組成的主從分布式溫度巡回檢測(cè)系統(tǒng)。主從機(jī)采用RS-485 串行通訊標(biāo)準(zhǔn)進(jìn)行通信，可在下位單片機(jī)實(shí)現(xiàn)基本的溫度數(shù)據(jù)巡回檢測(cè)基礎(chǔ)上，由上位PC機(jī)實(shí)現(xiàn)綜合處理功能或擴(kuò)展為遠(yuǎn)程操作。整個(gè)系統(tǒng)具有巡檢速度快，擴(kuò)展性好的特點(diǎn)。 Abstract: In this paper,a top PC and AT89C52 under-bit microcontrollers from the main component of the tour distributed temperature detection system is presented. Master and slave can use RS-485 serial communication standards for communications.Based on next-bit machine for basic goods temperature detected data Tour, the top can achieve the integrated treatment of PC functions or for the expansion of long-distance operation. The entire inspection system is fast, expansion.
上傳時(shí)間： 2013-10-13
上傳用戶：zhoujunzhen
在開(kāi)放式數(shù)控系統(tǒng)結(jié)構(gòu)模型的基礎(chǔ)上，研究了基于ISA總線的DSP通信控制原理。采用中斷方式完成了PC機(jī)和DSP之間的通信。介紹了以DriverWorks為工具開(kāi)發(fā)ISA設(shè)備WDM驅(qū)動(dòng)程序的方法，探討了中斷處理、驅(qū)動(dòng)程序與應(yīng)用程序之間的通信,簡(jiǎn)要說(shuō)明了驅(qū)動(dòng)程序的安裝與調(diào)試。通過(guò)調(diào)試,系統(tǒng)設(shè)計(jì)運(yùn)行穩(wěn)定。 Abstract: The ISA bus and DSP correspondence control principle is investigated in the basis of the existing open architecture numerical control system.The interrupt method is used to realize the communication between PC and DSP based on the ISA bus.The methods of WDM driver exploitation for ISA device using Driver Works are introduced.The main process of driver program and the keys such as handle interrupt and the communication between the drivers and application are presented.And how to debug and install the drive is explained.
標(biāo)簽： ISA DSP 總線 計(jì)算機(jī)
上傳時(shí)間： 2013-11-04
上傳用戶：kang1923
在汽車發(fā)動(dòng)機(jī)起動(dòng)時(shí)，若發(fā)動(dòng)機(jī)起動(dòng)后起動(dòng)機(jī)不能及時(shí)斷電，將會(huì)燒毀起動(dòng)機(jī)或損壞飛輪齒環(huán)；若變速器不在空檔位置起動(dòng)，則起動(dòng)機(jī)的瞬間動(dòng)力將使汽車位移，還可能引起交通事故和人身安全。為此介紹一種利用NXP P89LPC901單片機(jī)控制的汽車起動(dòng)保護(hù)控制器，通過(guò)檢測(cè)汽車起動(dòng)開(kāi)關(guān)、變速箱檔位、發(fā)動(dòng)機(jī)轉(zhuǎn)速，實(shí)現(xiàn)對(duì)汽車發(fā)動(dòng)機(jī)起動(dòng)過(guò)程檢測(cè)和保護(hù)。起動(dòng)保護(hù)控制器在發(fā)動(dòng)機(jī)起動(dòng)過(guò)程中通過(guò)采用逐個(gè)關(guān)閉打開(kāi)負(fù)載系統(tǒng)，解決汽車發(fā)動(dòng)機(jī)過(guò)程中因起動(dòng)電流大而對(duì)汽車電源的沖擊影響,延長(zhǎng)了電瓶壽命。 Abstract: When the automotive engine is started, the engine start motor and flywheel gear may be damaged， even traffic accidents and personal safeties may be caused by wrong operation or other factors.In order to ensure the automotive engine can be started normally and safely,it is necessary that the protecting measures and methods are considered in the automotive electrical control system.This paper introduces a kind of the automotive engine starting protect controller based on NXP P89LPC901 MCU.The controller can protect the engine starting process by detecting the starter key switch,transmission stall and engine speed.Through the use of close and open load system,the controller can solve the impact on automotive power because of the high-current load in the process of the automobile engine starting, and extend battery life.
上傳時(shí)間： 2013-10-15
上傳用戶：mikesering
為滿足礦井安全生產(chǎn)要求，介紹了一種以AT89C51單片機(jī)為主控器，對(duì)環(huán)境空氣的溫度、有毒易燃?xì)怏w的濃度等進(jìn)行檢測(cè)的監(jiān)控系統(tǒng)。該系統(tǒng)配合外圍電路能實(shí)現(xiàn)對(duì)上述環(huán)境指標(biāo)的控制并存儲(chǔ)相關(guān)數(shù)據(jù)與上位PC機(jī)通信。它采用硬件抗干擾和軟件抗干擾技術(shù)，以確保整個(gè)系統(tǒng)工作的準(zhǔn)確性。 Abstract: In order to meet the needs of mine produce safety，a kind of intellignet mine ambient monotoring and control system based on AT89C51 is introduced.This system can detect the temperature of ambient of mine，the density of poisonous inflammable gas,combined external circuit.With its function part， this system can change above-mentioned elements.
上傳時(shí)間： 2013-11-10
上傳用戶：wendy15
Mega16是一款采用先進(jìn)RISC精簡(jiǎn)指令，內(nèi)置A/D的8位單片機(jī)，可支持低電壓聯(lián)機(jī) Flash和EEPROM 寫(xiě)入功能；同時(shí)還支持 Basic和C 等高級(jí)語(yǔ)言編程。用它設(shè)計(jì)電子時(shí)鐘不僅成本低，硬件簡(jiǎn)單，而且很容易實(shí)現(xiàn)系統(tǒng)移植。介紹了如何利用AVR系列單片機(jī)Mega16及1602字符液晶來(lái)設(shè)計(jì)電子時(shí)鐘的方法，同時(shí)給出了相應(yīng)的電路原理及部分語(yǔ)言程序。 Abstract: ?Mega16 is a high-performance, low power consumption, the use of advanced RISC concise instructions, built-in A/D 8-bit microcontrollers, the on-line support for low-voltage Flash, EEPROM write function. Except Mega16 also support the Basic, C, and other high-level language programming.The electronic clock which is deisgned by Mega16 is not only low-cost, simple hardware, but easy to achieve system migration.The design method of electrioic clock based on the AVR Mega16 and character LCD1602 is introduced in this paper,and the corresponding circuit electrionic and some language program are given.
上傳時(shí)間： 2014-12-27
上傳用戶：zl5712176
針對(duì)目前燃?xì)庠钍袌?chǎng)的狀況，提出一種基于PIC16C711單片機(jī)的燃?xì)庠蠲}沖點(diǎn)火控制器設(shè)計(jì),具體包括有系統(tǒng)的組成和功能介紹、硬件電路設(shè)計(jì)及軟件功能實(shí)現(xiàn)。 Abstract: Aiming at today’s gas cooker market, a pulse ignition controler design based on PIC16C711 is presented.The specific descriptions of system components and functions,hardware circuit design and software function are given.
上傳時(shí)間： 2013-10-31
上傳用戶：zhqzal1014
MMC/SD卡以其優(yōu)越的性能，在單片機(jī)嵌入式設(shè)備中得到廣泛應(yīng)用。將MMC/SD卡作為外部掉電存儲(chǔ)介質(zhì)應(yīng)用于音頻信號(hào)發(fā)生器中，通過(guò)8051F330單片機(jī)上的SPI接口，實(shí)現(xiàn)單片機(jī)—MMC/SD卡的存儲(chǔ)擴(kuò)展，設(shè)計(jì)了此硬件平臺(tái)上的MMC/SD卡的單片機(jī)驅(qū)動(dòng)程序，并給出了相應(yīng)的程序代碼，滿足音頻信號(hào)發(fā)生器的大容量存儲(chǔ)要求。 Abstract: MMC/SD card is more and more widely used in the single chip embedded devices for their excellent performances.This article introduces the application of MMC/SD card as the external power down storage medium in audio signal generator. The extension technology especially for storage of single chip-MMC/SD card via SPI interfaces in 8051F330 single chip, including designs single chip drive program of MMC/SD card based on hardware platform,and also gives the key coding of the program. The implementation of big capacity storage is meaningful in audio signal generator.
標(biāo)簽： 8051F330 音頻信號(hào) 發(fā)生器
上傳時(shí)間： 2014-12-27
上傳用戶：黃華強(qiáng)
采用單片機(jī)AT89C2051實(shí)現(xiàn)溫度測(cè)量與控制,鍵盤(pán)和顯示電路實(shí)現(xiàn)溫度的設(shè)定、修改、清零以及當(dāng)前溫度值的顯示,并對(duì)溫度超過(guò)上下限進(jìn)行報(bào)警。闡述了該系統(tǒng)設(shè)計(jì)的硬件和軟件設(shè)計(jì)。 Abstract: The system of temperature measuring and controling is realized based on AT89C2051.The keyboard and display circuit is designed,which can be used for setting and modifying temperature value,resetting and displaying the present temperature value.At the same time the warning circuit is also designed in the system,which can deal with the alarm when temperature exceeds the upper limit and the lower limit.The hardware and software design of the system are explained．
上傳時(shí)間： 2013-11-18
上傳用戶：leehom61
針對(duì)眾多低成本數(shù)據(jù)采集需求，采用帶有片上USB控制器和D/A轉(zhuǎn)換器的混合信號(hào)微處理器C8051F340，設(shè)計(jì)了一款可通過(guò)USB接口和LabVIEW圖形用戶界面實(shí)現(xiàn)與PC機(jī)聯(lián)機(jī)的數(shù)據(jù)采集器，同時(shí)借助系統(tǒng)的SD卡存儲(chǔ)獨(dú)立實(shí)現(xiàn)現(xiàn)場(chǎng)長(zhǎng)時(shí)間采集數(shù)據(jù)。該數(shù)據(jù)采集器成本低，結(jié)構(gòu)簡(jiǎn)單，體積小，已成功用于工業(yè)現(xiàn)場(chǎng)。 Abstract: Aiming at the need of low cost data acquisition, a data acquisition device is designed based on C8051F340 which is a mixed-signal microcontroller and integrates USB controller and A/D controller on a chip.The data acquisition device which can combine with PC by USB interface and LabVIEW graphical user interface,can realize data acquisition. At the same time,it can be solely run a long time in virtue of SD card in field.The date aequisition device features low cost,simple structure and little sharp, and it has been used in industry field.
標(biāo)簽： C8051F340 數(shù)據(jù) 集器設(shè)計(jì)
上傳時(shí)間： 2014-05-31
上傳用戶：1109003457
提出了一種基于C8051F320的紅外模擬槍?xiě)?zhàn)系統(tǒng)設(shè)計(jì)方案。介紹了紅外模擬槍?xiě)?zhàn)系統(tǒng)的構(gòu)成，給出了硬件選型、系統(tǒng)硬軟件設(shè)計(jì)。利用紅外抗對(duì)系統(tǒng)的工作原理，系統(tǒng)獲得良好效果。 Abstract: This paper presents the design of simulated gunfight system based on C8051F320.Introduces system structure,and puts forward hardware selection of infrared simulated gunfight system and system hardware and software designs.Using the operation principle of infrared antagonizing system,the system result is good.
標(biāo)簽： C8051F320 模擬 系統(tǒng)設(shè)計(jì)
上傳時(shí)間： 2013-11-20
上傳用戶：南國(guó)時(shí)代
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