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DigitalmultimeterbasedonsinglechipmicrocomputercontrolSinglechipmicrocomputerreferredtoasSCM,isatypicalembeddedmicrocontroller(MicrocontrollerUnit),commonEnglishletterabbreviationofMCUMCU,itwasoriginallyusedinthefieldofindustrialcontrol.Duetothemicrocomputerinthefieldofindustrialcontrolapplications,tomakemorethepersonageinsidecourseofstudy,students,hobbyists,productdevelopmentstaffmastermicrocontrollerthistechnology,thenMCUdevelopmentboard,themorefamousexampleofelectronicDZR-01AMCUdevelopmentboard.ChipbychipCPUonlydedicatedprocessoranddevelopment.TheearliestdesignconceptisthelargenumberofperipheralsandCPUintegratedonachip,allowingthecomputersystemtoasmaller,easiertointegrateintothecomplexandthevolumerequiresstrictcontroloftheequipment.INTELZ80istheearliestaccordingtothisthoughtdesignoftheprocessor,fromthenon,thedevelopmentofSCMandspecialprocessorpartcompanyeachgoinghisownway.EarlySCMare8or4bit.OneofthemostsuccessfulINTEL8031,becausesimplereliableandgoodperformanceachievedgreatacclaim.Thereafterin8031onthedevelopmentoftheMCS51seriessinglechipsystem.Basedonthissystemofsinglechipmicrocomputersystemisstillwidelyused.Asthefieldofindustrialcontrolrequirementsincrease,begana16bitsinglechipmicrocomputer,butbecausethepriceisnotidealdidnothaveaverywiderangeofapplications.After90yearswiththeconsumerelectronicproductdevelopment,SCMtechnologyhasahugeincrease.AlongwiththeINTELi960seriesespeciallylaterARMseriesofwidelyused,32bitsinglechipmicrocomputerrapidlyreplacedthe16bitMCUhighposition,andintothemainstreammarket.Whilethetraditional8bitSCMperformancehasalsobeenenhancedrapidly,handlingcapacitycomparedto80inincreasedhundredsoftimes.Atpresent,thehigh-end32bitsinglechipmicrocomputerfrequencyismorethan300MHz,performancewas90timemetaphasededicatedprocessor,andcommonmodelsoftheex-factorypricefellto$1,themosthigh-endmodelsonly$10.Thesinglechipmicrocomputersystemhasnotonlythebaremetalenvironmentdevelopmentanduse,largenumberofspecialembeddedoperatingsystemiswidelyusedinthewholeseriesmcu.WhileasapalmtopcomputerandmobilephonecoreprocessingchipmicrocomputerandcanbeuseddirectlyfortheWindowsandLinuxoperatingsystem.Singlechipprocessorismoresuitablethanthespecialapplicationinembeddedsystem,soitgotthemostapplications.ThefactthatSCMistheworld'slargestnumberofcomputer.Modernhumanlifeusedinalmosteverypieceofelectronicandmechanicalproductswillhaveasingle-chipintegration.Mobilephone,telephone,computer,householdappliances,electronictoys,palmtopcomputerandcomputeraccessoriessuchasamousewith1-2MCUin.Personalcomputerwillhavealargenumberofsinglechipmicrocomputerinthework.Thecarisequippedwithmorethan40ofthegeneralsinglechipmicrocomputer,thecomplexindustrialcontrolsystemandeventheremaybehundredsofsinglechipmicrocomputerintheworkatthesametime!SinglechipnotonlythenumberoffarmorethanPCmachineandtheothercomputesthesum,evenmorethanhuman.Alsoknownassingle-chipmicrocontroller,itisnotthecompletionofalogicfunctionofthechip,butacomputersystemintegratedintoachip.Theequivalentofamicrocomputer,andthecomputer,single-chiponlylackofI/Oequipment.Summary:achipisacomputer.Ithastheadvantagesofsmallvolume,lightweight,lowprice,forthestudy,applicationanddevelopmentoffacilitiesprovided.Atthesametime,learntousesingle-chipcomputerprincipleandstructureisthebestchoice.MCUinternaluseandcomputerfunctionssimilartothemodule,suchasaCPU,memory,harddiskandaparallelbus,andthesamestoragedevice,isitdifferentforthesecomponentsperformancerelativetobothourhomecomputeralotweaker,butthepriceislow,generallynotmorethan10yuancan,useittodosomecontrolelectricalcategoryisnotverycomplicatedworkok.Wenowuseautomaticdrumwashingmachine,exhausthood,VCDandsoonthehomeapplianceinsidecanseeitsshadow,itismainlyusedasthecontrolpartofthecorecomponents.Itisanon-linereal-timecontrolcomputer,onlineisthescenecontrol,needtohavestronganti-interferenceability,lowcost,andthisisalsotheoff-linecomputer(suchasahouseholdPC)themaindifference.360毕业设计网友情提供---!ButifweusetheUnitedStatesin70successfulseriesofsingle-chipmarket,theresultwillbeaworldofdifference!Justbecausetheadoptionofsingle-chippreparationprocessyoucanachievehighintelligence,highefficiency,andhighreliability!Becauseofthecostofsingle-chipissensitive,sothedominantsoftwareorthelow-levelassemblylanguage,itistheadditionofbinarymachinecodeabovethelow-levellanguage,sinceitissolowwhydotheyuse?Manyseniorlanguagehasreachedthelevelofvisualprogrammingandwhynot?Thereasonisverysimple,nohomecomputerchipthatCPUdidnotlikeharddisks,USBmassstoragedevice.Anadvancedvisuallanguagepreparedbythesmallproceduresinsideevenifonlyonebutton,willreachseveraltensofKsize!FordomesticPCharddiskisnothing,butforthesingleisno