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OPERATION

  • NXP P89LPC901單片機(jī)汽車起動保護(hù)控制器設(shè)計(jì)

    在汽車發(fā)動機(jī)起動時(shí),若發(fā)動機(jī)起動后起動機(jī)不能及時(shí)斷電,將會燒毀起動機(jī)或損壞飛輪齒環(huán);若變速器不在空檔位置起動,則起動機(jī)的瞬間動力將使汽車位移,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)控制的汽車起動保護(hù)控制器,通過檢測汽車起動開關(guān)、變速箱檔位、發(fā)動機(jī)轉(zhuǎn)速,實(shí)現(xiàn)對汽車發(fā)動機(jī)起動過程檢測和保護(hù)。起動保護(hù)控制器在發(fā)動機(jī)起動過程中通過采用逐個(gè)關(guān)閉打開負(fù)載系統(tǒng),解決汽車發(fā)動機(jī)過程中因起動電流大而對汽車電源的沖擊影響,延長了電瓶壽命。 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.

    標(biāo)簽: NXP LPC 901 P89

    上傳時(shí)間: 2013-10-15

    上傳用戶:mikesering

  • 基于C8051F020的觸摸屏驅(qū)動控制

    C8051F020單片機(jī)通過SPI接口驅(qū)動四線電阻式觸摸屏控制器TSC2046,利用中斷方式驅(qū)動TSC2046設(shè)計(jì)軟件。介紹了觸摸屏的工作原理、TSC2046工作方式以及典型應(yīng)用電路。 Abstract:  The C8051F020 MCU is connected with the TSC2046 which is a 4-wire touch screen controller. The TSC2046 is controlled by interrupt mode, the? OPERATION principle of touch screen is introduced. The OPERATION mode of TSC2046 and typical application circuit are also discussed.

    標(biāo)簽: C8051F020 觸摸屏 驅(qū)動控制

    上傳時(shí)間: 2014-12-27

    上傳用戶:hwl453472107

  • 基于C8051F320的模擬槍戰(zhàn)系統(tǒng)設(shè)計(jì)

    提出了一種基于C8051F320的紅外模擬槍戰(zhàn)系統(tǒng)設(shè)計(jì)方案。介紹了紅外模擬槍戰(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:南國時(shí)代

  • 基于MPC555與CS8900A的以太網(wǎng)擴(kuò)展設(shè)計(jì)

       介紹了MPC555與CS8900A擴(kuò)展以太網(wǎng)的硬件設(shè)計(jì)圖。以NUCLUES PLUS操作系統(tǒng)為基礎(chǔ),介紹了網(wǎng)卡軟件驅(qū)動程序的編制,給出了以太網(wǎng)協(xié)議包嵌入NUCLEUS PLUS操作系統(tǒng)的實(shí)現(xiàn)方法。 Abstract:  The Ethernet extension hardware design of MPC555 and CS8900A are introduced,and the software driven program based on NUCLEUS PLUS OPERATION system and the technique that Ethernet protocol embedded in NUCLEUS PLUS real OPERATION system are discussed.

    標(biāo)簽: 8900A 8900 MPC 555

    上傳時(shí)間: 2013-10-23

    上傳用戶:xiehao13

  • 基于MSP430F149的智能電池巡檢系統(tǒng)的設(shè)計(jì)

    介紹了電力操作電源與智能電池巡檢系統(tǒng)的特點(diǎn),給出了一種基于超低功耗單片機(jī)MSP430 F149針對中小型變電站自動化運(yùn)行的專用設(shè)備的基本設(shè)計(jì)原理及實(shí)現(xiàn)方法,最后給出了詳細(xì)硬件構(gòu)成和軟件實(shí)現(xiàn)。該系統(tǒng)能滿足中小型變電站安全、可靠、自動運(yùn)行的要求,并通過與上位機(jī)的串行通信實(shí)現(xiàn)變電站的遠(yuǎn)程管理和控制。 Abstract:  The characters of the intelligent battery data logging system of the electric OPERATION power are introduced.The basic design principle and the implemented methods of the special equipment which only designed for the middle or small transformer substation based on MSP430F149 are prescribed. Finally, the hardware block diagram and the software flow chart are also given. The function that the system finally needs to realize can basically meet with the middle or small transformer substation’s satisfy, reliably,and automatic running.And it can also realize the transformer substation long-distance management and control by serial communicating with the host computer.

    標(biāo)簽: 430F F149 MSP 430

    上傳時(shí)間: 2013-11-25

    上傳用戶:黃華強(qiáng)

  • 基于ADuC841的膜片鉗放大器系統(tǒng)設(shè)計(jì)

    為降低成本和解決現(xiàn)有膜片鉗放大器系統(tǒng)中PC機(jī)的干擾問題,研究了一種基于單片機(jī)的膜片鉗放大器小系統(tǒng)。該系統(tǒng)采用ADI公司生產(chǎn)的ADuC841作為控制核心,并且配置相應(yīng)的液晶顯示模塊LCM3202401。模擬電路部分采用高輸入阻抗的AD8627實(shí)現(xiàn)微電流信號的采集,并由后級電路進(jìn)行信號的放大和電阻電容的補(bǔ)償。它具有硬件電路簡單、體積小、使用方便的特點(diǎn)。既可以單獨(dú)作為小系統(tǒng)實(shí)現(xiàn)采集和顯示,也可以通過紅外方式和PC機(jī)進(jìn)行通訊,在PC機(jī)上進(jìn)行信號的處理。 Abstract:  In order to reduce cost and resolve the interferential problem with PC in existing patch clamp amplifiers, a small patch clamp amplifier system design based on microcontroller is studied. It adopts a new high performance microconverter ADuC841 by the ADI as the control core in the system, configuring a liquid crystal module LCM3202401. In the analog circuit, AD8627 with high input impedance is used to detect the low current,signal magnification, as well as resistance and capacitance compensation are accomplished by subsequent circuits. It has the advantage of simple hardware circuit design, small volume and convenient OPERATION. It can either be used as an independent system to measure and show signal detected or transmit to PC by infrared ray.

    標(biāo)簽: ADuC 841 膜片鉗 放大器

    上傳時(shí)間: 2013-11-06

    上傳用戶:yy_cn

  • 基于雙ATmega128的安檢力學(xué)試驗(yàn)機(jī)設(shè)計(jì)

    針對當(dāng)前安檢力學(xué)試驗(yàn)機(jī)所能完成的試驗(yàn)種類單一、自動化程度低等問題,提出一種以ATmega128單片機(jī)為核心控制器的安檢力學(xué)試驗(yàn)機(jī)的設(shè)計(jì)。詳細(xì)闡述了該安檢力學(xué)試驗(yàn)機(jī)各個(gè)組成部分的設(shè)計(jì)原理和方案,并且給出了各部分的軟件設(shè)計(jì)思想和操作流程。經(jīng)過大量測試試驗(yàn)表明:設(shè)計(jì)的安檢力學(xué)試驗(yàn)機(jī)可以完成多達(dá)十余種的力學(xué)安檢試驗(yàn),完全符合相關(guān)國家標(biāo)準(zhǔn),并且具有數(shù)據(jù)采集精度高、傳輸速度快、操作安全簡便等特點(diǎn),實(shí)現(xiàn)了安檢設(shè)備的多功能化、數(shù)字化和自動化。 Abstract:  Currently, many mechanical security testing machines have only one function. The degree of automation of them is low. To solve those problems, a new kind of mechanical security testing machine, using ATmega128 micro-controller as its core controller, has been advanced. It describes the components of the machine. The principles and the scheme in the designing processes are presented in detail, and the software architecture and the OPERATION processes of each part are given. After having done many testing, we have reached the following conclusions: the mechanical security testing machine presented can do over ten mechanical security tests complying with related national standards. It has high data acquisition accuracy and high transmission speed. The OPERATION of the machine is simple and safe. In general, this machine is a multi-functional, highly automatic, digitalized security testing device.

    標(biāo)簽: ATmega 128 安檢 試驗(yàn)機(jī)

    上傳時(shí)間: 2013-11-05

    上傳用戶:a67818601

  • LPC1700以太網(wǎng)MIIM接口應(yīng)用筆記

    The LPC1700 Ethernet block contains a full featured 10 Mbps or 100 Mbps Ethernet MAC (Media Access Controller) designed to provide optimized performance through the use of DMA hardware acceleration. Features include a generous suite of control registers, half or full duplex OPERATION, flow control, control frames, hardware acceleration for transmit retry, receive packet filtering and wake-up on LAN activity. Automatic frame transmission and reception with Scatter-Gather DMA off-loads many OPERATIONs from the CPU.

    標(biāo)簽: 1700 MIIM LPC 以太網(wǎng)

    上傳時(shí)間: 2013-11-09

    上傳用戶:geshaowei

  • PCA9541 2 to 1 I2C-bus master

    The PCA9541 is a 2-to-1 I2C-bus master selector designed for high reliability dual masterI2C-bus applications where system OPERATION is required, even when one master fails orthe controller card is removed for maintenance. The two masters (for example, primaryand back-up) are located on separate I2C-buses that connect to the same downstreamI2C-bus slave devices. I2C-bus commands are sent by either I2C-bus master and are usedto select one master at a time. Either master at any time can gain control of the slavedevices if the other master is disabled or removed from the system. The failed master isisolated from the system and will not affect communication between the on-line masterand the slave devices on the downstream I2C-bus.

    標(biāo)簽: master C-bus 9541 PCA

    上傳時(shí)間: 2013-10-09

    上傳用戶:3294322651

  • PCA9555 16bit I2C-bus and SMBu

    The PCA9555 is a 24-pin CMOS device that provides 16 bits of General Purpose parallelInput/Output (GPIO) expansion for I2C-bus/SMBus applications and was developed toenhance the NXP Semiconductors family of I2C-bus I/O expanders. The improvementsinclude higher drive capability, 5 V I/O tolerance, lower supply current, individual I/Oconfiguration, and smaller packaging. I/O expanders provide a simple solution whenadditional I/O is needed for ACPI power switches, sensors, push buttons, LEDs, fans, etc.The PCA9555 consists of two 8-bit Configuration (Input or Output selection); Input, Outputand Polarity Inversion (active HIGH or active LOW OPERATION) registers. The systemmaster can enable the I/Os as either inputs or outputs by writing to the I/O configurationbits. The data for each Input or Output is kept in the corresponding Input or Outputregister. The polarity of the read register can be inverted with the Polarity Inversionregister. All registers can be read by the system master. Although pin-to-pin and I2C-busaddress compatible with the PCF8575, software changes are required due to theenhancements, and are discussed in Application Note AN469.

    標(biāo)簽: C-bus 9555 SMBu PCA

    上傳時(shí)間: 2013-11-13

    上傳用戶:fredguo

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