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1、矩阵键盘与液晶显示器外文文献翻译(含：英文原文及中文译文)文献出处：CarlPoy英文原文THEDESIGNOFMATRIXKEYBOARDANDLCDDISPLAYBASEDONMCUCarlPoyAbstractThedevelopmentofmicroelectronicstechnologyandindustrialmeasurerequirementbringagoodopportunityfordevelopmentandresearchsystem,whichmakesitabro
2、adprospects.Theequipmenthastheadvantagesofsmallsize,singlepowersupplyandavarietyofoutputvoltageleadsithasaspecialmodule.Throughtheanalysisofthehardwarestructure,wecansummarizeseachmoduleneeds.Forexample,weoftengothroughthekeystorealizethecontrolofthe
3、electronicdevice.Smalltowatchmobilephone,totheTVcomputer,toavarietyofcomplexinstruments,allneedtorealizevariousoperationsthroughthebuttons.Thisdesignisanimportantpartofstepforthefurtherresearch,usingbuttonstocontrolthedisplay,includesomemoduleslikeLC
4、D1602liquidcrystaldisplay,4*4matrixkeyboard,STC89C52single-chipmicrocomputerandotherchips.CombinewiththeProteussoftware,thesimulationresultsaredisplayedontheLCDin1602typeofdata.KEYWORDS:Single-chip;LCD1602liquidcrystaldisplay;4*4Matrixkeyboard1Introd
5、uctionWiththedevelopmentofeconomyandtheprogressofscienceandtechnology,Microprocessorsandperipheralchipshavedevelopedrapidly.ThenewestdevelopmentoftheintegratedtechnologyistheCPUchipandexternal.Liketheprogrammemory,datamemory,parallel,serial,I/Otiming
6、/counter,interruptcontrollerandothercontrolcomponentsareintegratedinachip—singlechip.SCM2hasamanufacturingprocessCMOS,Thesmallerlithographyprocessimprovesintegrationwhichmakethechipspacesmaller,lowercost,lowerworkingvoltage,lowerpowerconsumption.Adop
7、tsdoubleCPUstructure,increasingthewidthofdatabus,improvethespeedandtheabilityofdataprocessing,apipelinestructure,improvetheprocessingandcomputingspeed,inordertomeettheneedsofreal-timecontrolandprocessing.Toincreasethestoragecapacity,theinternalEPROME
8、PPROM,secureprogram,toimprovethedrivingcapabilityofparallelport,inordertoreducetheperipheraldrivingchip,increasethelogicfunctionandcontroltheexternalI/Oportflexibility.Peripheralinserialmodebasedexpansion;peripheralcircuitinternalinstallationisanobvi
