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基于51单片机的音乐播放器设计原文：Author:Bobbrownsources:theSCM”Abstract:themusicplayeristouseSTC89C51SCMcombininginternaltimingsystemanddigitaltubedisplaydesignasimplemicrocomputermusicbox.Thispaperanalyzesthemusicplayerbasedon51singlechiphardwarecircuitandsoftwaredesignofthespecificprocessincludingdataprocessingproceduredesign,displaysubrouOnedesignfinallybasedonthesimulationprocessmeetphenomenonwascarriedontheconcreteanalysisanddescription.Keywords:player;SCM;STC89C51Alongwiththehorizontalexaltationinpeoplephysicallife,peoplepaymoreandmoreattentiontothespirituallifesatisfaction,keentoseekhappinessinconsumptionandentertainmentexperience.Musicasahumanentertainmentlifeimportantelements,hasbeenallconcern.Buthumansintotheindustrialsocietysince,willmusicplayandindustrialproductscombinedwithdevelopedaseriesofmusicplayproducts,andwiththeinnovationoftechnologyandcustomers'demandschangeconstantlyupdated,forhumanentertainmentlifeprovidesfashionconvenienceitems.Beforetwoyearsfashionmodeling,smallportable,freedownloadsongspopularMP3playeristomakemusicplayproductunprecedentedprosperity.Butintheprosperity,themainstreammusicplayproductsMP3playerinthemodelandthedesignofthesystemseemstobeintoabottleneck,newproductsandoldproductsthanjustthefirmwareupdateandhardwarealternating,andnocontentandessenceofthejump,thereforeinthesamewithportablesexualcharacteristicsandmusicplayfunctionofmusiccellphoneappeared,MP30riginalfunctionaladvantagesofnolonger,themarketandthenbequicklyextrusion,status,receivedanunprecedentedthreat.Throughoutthehistoryofmusicplayproducts,andeachtimethemusicplayproductinnovationsareconceptbreakthroughortheideaoftheresultofinnovation.Asfromtheradiotorecordmachinerealizedthelisteningmodefrompassivelisteningtotoindependentchoicechange,fromrecordmachinetorealizetheWalkmanfixedtoaportableleap.Therefore,howtoinconcept,theconceptofinnovationandbreakthrough,findthemusicplayproductsnewdevelopmentdirection,toadapttothenewdemandofconsumers,itiscurrentproductdesignersurgentneedtoresolveproblems.Firstly,thispaperreviewsthehistoryofmusicplayproducts,andanalysisofthecurrentmusicplayproductsituation,thispaperproposesanewconceptfortheimportanceofbreakthroughpoint;Secondly,basedonthecurrenteconomicenvironmentandsocialgroupenvironmentanalysis,aswellasthemusicindustrydevelopmentpresentsituationandtrendanalysis,itsumsupthecurrentconsumerdemandtrend;Finally,accordingtothesummaryoftheconsumptiondemandandmarketsomeexistingmusicplayproductguidance,putsforwardthefuturemusicplayproductthedevelopmentdirectionandthecorrespondingsomeideaconcept.STC89C51microcontrollerdesignamusicplayerthroughthesinglechipmicrocomputermusicplayersystemdesignandresearch,tobemasteredSCMrelatedknowledgeisofimportanttheoreticalandpracticalsignificance.Thecurriculumdesignofthemusicplayeristhecombinationofsoftwareandhardware,differentnotesformofexpressionisdifferentfrequencytovoice.ThroughasinglechipmicrocomputerSTC89C51producedifferentfrequencypulsesignal,throughtheamplificationcircuit,bythebuzzerrelease,heproducedawonderfulharmonybeautifulmovingmusic.Accordingtothethythmofthescaleisgivenfortime,finallyrealizesthefunctionofplaysimplesongs.Forbetterlifeforthepeopleprovidesreliable,respect,cheapmethod.STC89C51single-chipmicrocomputerascorehardwarecontrolunit,combinedwithtriodeasamplifier,digitaltubeconstituteatypicaldisplaycircuit,keyasinputpartandotherperipheralequipmentcompositionofmusicbroadcastsystem.Accordingtothemusicplayingcontrollertoachievethedisplayandselectsandmusicproducefunctionprinciple,systemincludingplayspeaker,selects,playedanddisplayafewparts.Amongthem,thebuttonAGAINwithopenplaytunesandrepeatplaythetunefunction,FORMkeyhasplayedasongbeforeworkcan,NEXTbuttonhasplayedasongafterthefunction,RESkeyhasplayedbeforethefunctionofasong.Thedesignmusicplayercanplaymanyfirstmusic,songscanchoosebythekeyboardcontrol,andthroughthedisplaymakeitsdisplaysongsserialnumber.Designofthemusicplayingcontrolleristhroughthecontrolofsinglechipmicrocomputerinternaltimertoproducedifferentfrequencysquarewave,drivespeakerdifferentsyllablevoice,andthendelaytocontrolthelengthoftimethepronunciation,i.e.,thecontrollingtoneofthebeat.Atthesametimesetbuttontomakethedesignprocesscanbeinthreetofoursongsbetweenperformers,designdisplaymakeitsdisplaysongsserialnumber.Withthetraditionalmechanicalmusicboxthansmaller,morebeautifultimbreandcanplaychordmusic.Electronicmusicboxisthesourceofpowerbatteries,simplemanufacturingprocess,canbeconductedbatchproduction,socheap.BasedonSCMmakeelectronicmusicbox,controlpowerful,canaccordingtoneedtochoosesongs,easytouse.Accordingtothesizeofthestoragecapacity,canbeasmanystoresongs.Inaddition,candesignlightsappearanceeffect,makethemusicboxfunctionmorench.ThisdesignisSTC89C51chipcircuitasthefoundation,externalandplaybackequipment,soastorealizemusicplayingcontrollerhardwarecircuit,throughthesoftwareprogramtocontroltheMCUinternaltimermakeitplaybeautifulmovingmusic.TheusercanchooseaccordingtooneselfbefondofmusicandtranslateintomachinecodeinSCMstorage.Fordifferenttypesofsinglechip