电子信息专业外文翻译.doc

电子信息专业外文翻译.doc

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届电子信息工程专业班级

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二О一六年三月十日

EDA的发展及VHDL的应用

90'sin20centuries,internationallastelectronicsandcalculatortechniquemoretheforerunner'snation,hasbeenbeingactivelyinvestigatinganewdesignmethodoftheelectronicselectriccircuit,andcarriedonanexhaustivechangeintheaspectsofdesigningamethod,toolwait,obtainhugesuccess.Atthedesignrealmoftheelectronicstechnique,theapplicationofprogrammablelogicsparepart（likeCPLD,FPGA）,havealreadygotextensiveuniversality,thesesparepartsbroughttremendousvividforthedesignofnumericalsystem.Thesesparepartscanpassasoftwareplaitadistancebutastoit'shardwarestructureandworkthewaycarryonheavyGouandmakethusthedesignofhardwarecanlikesoftwaredesignsoconvenientfast.Theallthesebiggestchangedatraditionalnumericalmethod,designprocessofthesystemdesignanddesignideaandpromotedtheEDAtechnicalquickdevelopment.

TheEDAisanelectronicsdesignautomation（theAutomationoftheElectronicDesign）ofabbreviation,design（CAD）fromthecalculatorassistanceatthebeginningof90'sin20centuries,calculatorassistancemanufacturing（CAM）,calculatorassistancetest（CAT）andcalculatorlendsupporttotheconceptofengineering（CAE）adevelopmentsincethen.TheEDAtechniqueistotakecalculatorastool,designatEDAsoftwareterraceup,usethehardwaredescriptionlanguageHDLcompletionadesignadocument,thenisofoneselfcompletedlogictoeditandtranslate,turnChien,partitionedbythecalculator,comprehensive,excellentturn,setup,clothlinewithimitatereally,untilforparticulartargetchipofpropergotogetherwithtoeditandtranslate,thelogicreflecttoshootwithplaitdistancedownloadetc.work.TheEDAtechnicalemergence,biggestraisedefficiencyandmaneuverabilityofelectriccircuitdesign,easedtodesignoflaborstrength.

Thesesparepartscanpassasoftwareplaitadistancebutastoit'shardwarestructureandworkthewaycarryonheavyGouandmakethusthedesignofhardwarecanlikesoftwaredesignsoconvenientfast.Theallthesebiggestchangedatraditionalnumericalmethod,designprocessofthesystemdesignanddesignideaandpromotedtheEDAtechnicalquickdevelopment.MakeuseofEDAtool,theelectronicsdesignercanstartdesignelectronicssystemfromtheconcept,calculateway,agreement...etc.,agreatdealofworkcanpasscalculatorcompletion,andcandesigntheelectronicsproductisfromtheelectriccircuit,thefunctionanalyzecomputeofthewholeprocessofdesignanIClandscapeorPCBlandscapeonboardautoprocessingcompletion.

UsetotheEDAconceptorcategoryverybreadthnow.Includeineachrealmofthemachine,electronics,correspondence,aviationaerospace,chemicalengineering,mineral,livingcreature,medicalscience,military...etc.,allthereisEDAapplication.TheEDAtechniquehasalreadyextensivelyusedineacharchdukedepartment,theQibusinessunitandresearchteachingsectioncurrently.Forexampleintheairplanethemanufacturingtheprocess,fromdesign,performancetestandcharacteristicanalyticaluntilflyemulation,mayinvolveanEDAtechnique.TheEDAtechniquethatthistextpointmainlytothedesign,PCBdesignoftheelectronicselectriccircuitandICdesign.TheEDAdesigncanisdividedintosystemclass,electriccircuitclassandphysicstocarryoutclass.TheEDAincommonusesoftware:

TheEDAtoolpileuponeafteranotherandgetintoanourcountrycurrentlyandhavetheEDAsoftwareofextensiveinfluencetohave:

MultiSIM7（thelatesteditionoforiginalEWB）,PSPICE,OrCAD,PCAD,Protel,Viewlogic,Mentor,Graphics,Synopsys,LSIIogic,Cadence,MicroSim,ISE,modelsimetc..Thesetoolsallhavestrongerfunction,generallycanusedforafewaspects,forexamplealotofsoftwaresallcancarryonanelectriccircuitdesignwithimitatereally,togetherenteringcanalsocarryonPCBtoautomaticallysetupclothline,canoutputvariousnetformadocumentwiththethirdsquaresoftwareconnect.

TheVHDLEnglishfullnamebetheHardwareDescriptionLanguageoftheIntegratedCircuitoftheVery-High-Speed,birthin1982.Attheendof1987,theVHDLisconfirmbyIEEEandAmericanMinistryofNationalDefensetodescribelanguageforthestandardhardware.AnnouncedVHDLstandardeditionfromtheIEEE,IEEE-1076（call87versions）after,theeachEDAcompanyreleasedownVHDLdesignenvironmentoneafteranother,ordeclaredthattheowndesigntoolcanconnectwithVHDL.HenceforththeVHDLdesignedrealmtogettoextensivelyacceptintheelectronics,andgraduallyreplacedanoriginallynot-standardhardwaredescriptionlanguage.In1993,theIEEEcarriedontorevisetotheVHDL,describeabilitytoupexpandaVHDLcontentsfromhigh