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1、中文2075字外文资料原文DesignandImplementofResponderBasedonFreescaleHCS12SingleChipMicrocomputerResponderisalsoknownasthefirstsignaldiscriminator,whichiswidelyusedinvariouscompetitions.Itcanjudgethenumberofthefirstplayeraccurately,fairlyandintuitively.Currently,avarietyofquizresponderhasemerged
2、onthemarket,inwhichasmallresponderiscommonlydesignedwithsmall-scaledigitalintegratedcircuit.Althoughthetechnologyhasbeenquitemature,butitissimplefunction,lowintelligence,highfault,simpledisplay,lessflexibility,notconvenienceforupgrade,ithasbeenunabletomeetallkindsofrequirementsforinte
3、llectualcompetitionsandvarietyshows.Therefore,itisnecessarytodevelopsomekindsofresponderwhicharemoresuitableforapplications.Inrecentyears,withtherapiddevelopmentofscienceandtechnology,theapplicationsofsingle-chipmicrocomputerarebecomingwidely,whichpromotesthedevelopmentoftraditionalme
4、asurementandcontroltechnology.Inthispaper,FreescaleHCS12[1-3]isdesignedasacorecomponenttoachieveanintelligentdigitalresponderwith8-channel[4-8],ithassomebreakthroughsontechnology,functionandotheraspects,comparingwiththepastresponder.Itischaracterizedbysimplestructure,powerful,goodreli
5、ability,practicability,sothatthecompetitioncanreallycarriedoutonjust,fairandopenrules.Thebasicfunctionsofresponderdesignedinthispaperare:(1)Thesystemcanlimitthecompetitiontimeandanswertimeofthealarm;(2)Thesystemcanidentifytheanswersignalandidentifytheplayer'snumber;(3)Thesystemcancalc
6、ulatescoreforeachplayeranddisplaythescores.Respondercanaccommodate8playersnumbered1to8.Inaddition,LEDdigitaltubesaredesignedtodisplaythelatcheddata.Afterracehostclearsthesystem,ifparticipantspressswitch,andafteransweriscertificatedwhetheritiscorrectornot,thenumberoffirstplayertoanswer
7、inactionisimmediatelyshownbydigitaltubes.Respondershouldhaveastrongabilitytodistinguishplayerstoanswerintheaction,itsresolutionreachesatleastafewmsAftertherequirementsandfunctionsofresponderareanalyzed,thefollowingcircuitsarerequiredingeneral:1、Respondercircuit4Thecircuithastwofunctio
8、ns:on
