基于FPGA的直接数字合成器设计(英文翻译)

EDAtechnologyandsoftwareEDAisElectronicDesignAutomation(ElectronicAutomation)istheabbreviationofthemselves,intheearly1990sfromcomputeraidedDesign(CAD),computeraidedmanufacturing(CAM),computeraidedtesting(CAT)andcomputeraidedengineering(CAE)developmentoftheconceptsandcome.EDAtechnologyisonthecomputerasthetool,thedesignerinEDAsoftwareplatform,withVHDLHDLfinishdesigndocuments,thenbythecomputerautomaticallylogiccompilation,reduction,division,comprehensive,optimization,layoutandwiringandsimulationforaparticulargoalchips,untiltheadaptercompilation,logicmappingandprogrammingdownload,etc.1.EDAtechnologyconceptsEDAtechnologyisinelectronicCADtechnologydevelopedonthebasisofcomputersoftwaresystembymeansofcomputerforworkingplatform,shirt-sleeveapplicationofelectronictechnology,computertechnologyandinformationprocessingandintelligenttechnologytothelatestachievementsofelectronicproducts,theautomaticdesign.UsingEDAtools,electronicstylistcanbefromconcept,algorithm,agreement,etc,begintodesignyourelectronicsystemalotworkcanbefinishedbycomputerandelectronicproductscanbefromcircuitdesign,performanceanalysistodesigntheICterritoryorPCBlayoutthewholeprocessofthecomputerautomaticallycompletetheprocessing.NowontheconceptofusingEDAorcategoryverywide.Includedinmachinery,electronics,communication,aerospace,chemical,mineral,biology,medicine,militaryandotherfields,haveEDAapplications.CurrentEDAtechnologyhasinbigcompanies,enterprises,institutionsandteachingresearchdepartmentsextensiveuse.Forexampleintheaircraftmanufacturingprocess,fromdesign,performancetestingandcharacteristicanalysisuntilaflightsimulator,allmayinvolveEDAtechnology.Globalization-theEDAtechnology,mainlyinelectroniccircuitdesign,PCBdesignandICdesign.EDAcanbedividedintosystemlevelandcircuit-levelandphysicalimplementationlevel.2.EDAsoftwareEDAtoolstoemergeinendlessly,nowenteringintoChinaandextensiveinfluenceofEDAsoftwareare:multiSIM7(originalEWBthelatestversion),PSPICEOrCAD,PCAD,ViewlogicProtelwaslittle,Synopsys,LSIIogic,MicroSimCadence,etc.Thesetoolsarestrongfunction,generallycanbeusedinseveralaspects,suchasmanysoftwarecanundertakecircuitdesignandsimulation,withintoandcanbeautomaticallyPCBlayoutwiring,outputvariousnetslistdocumentwithathirdpartysoftwareinterface.Accordingtothemainfunctionbelowormainapplications,dividedintocircuitdesignandsimulationtools,PCBdesignsoftware,ICdesignsoftwareandPLDdesigntoolsandotherEDAsoftware,simpleintroduction.(1)ElectroniccircuitdesignandsimulationtoolsWemayhaveusedtestplateorotherthingshasproducedsomeelectronicmakingtocarryonthepractice.Butsometimes,wewillfindittohavealotofquestions,didn'tthink,sotheywastedalotofourtimeandmaterials.Andincreasesproductdevelopmentcycleandlastedproducttime-to-markettransformsproductlosemarketcompetitiveadvantage.Havetouseelectricirontestplatecanknowtheresultsofmethod?Conclusionthereis,thisiscircuitdesignandsimulationtechnology.Saytotheelectroniccircuitdesignandsimulationtoolsofthistechnology,withoutmentioningAmerica,havetomentiontheirplanedesignwhyhashighefficiency.Beforeourfinalizethedesignamedium-sizedplanedesignfromthedrafttothedetaileddesigntothewindtunneltesttofinallygivesapicturetotheactualoperation,thecycleisaboutto10years.TheUnitedStatesis1year.Whyistheresuchahugegap?BecauseAmericainthedesignmostusesisthevirtualsimulationtechnology,andtheyearsofaccumulationofvariouswindtunneltestparametersinputcomputer,thenthroughcomputerprogrammingcompileavirtualenvironmentofsoftware,andmakeitcanautomaticgamecomponentrelatedformulaandcallafterlongtermaccumulatedinputcomputerrelatedexperienceparameters.Thus,aslongastheaircraftshapeprogramdatainthevirtualwindtunneltestsoftware,whereunreasonablehavechangesthere,untilthebesteffect,theefficiencyhigh,endaslongasnaturalagainintheactualenvironmenttestseveraltimeslookforshortagecanfinalizethedesign,fromtheirBoeing747tousF16areusingthismethod.Aerodynamicallydatabyseniorexpertstoprovide,softwaredevelopersisIBM,aircraftdesignengineerjustusingsimulationsoftwareincomputerplatformofvarioussimulativedebuggingcan.Similarly,theymanyotherthingsareadoptedsuchsimilarmethod,fromlargetosmall,fromcomplextosimple,evenincludingthedesignoffurnitureandcomposition,justspecificsoftwaredifferentcontents.Infact,theyinventedthefirstgenerationofcomputersisthispurpose(itistoefficientdesignartilleryandrelatedshellsandotherlargeamountofcalculationofdesign).ElectroniccircuitdesignandsimulationtoolsincludingSPICE/PSPICE;MultiSIM7;Matlab;SystemView;MMICADLiveWire,Edison,TinaProwhoSpark,etc.(2)PCBdesignsoftwarePCBBoard(maritime-thevehicle)designsoftwareisalotofmorephyletic,suchasProtel,OrCAD,Viewlogic,PowerPCBCadencePSD,MentorGraphices,theExpeditionPCB,ZukenCadStart,Winboard/Windraft/Ivex-SPICE,PCBStudio,TANGO,PCBWizard(withLiveWiresupportingthePCBproductionpackage),ultiBOARD7(withmultiSIM2001supportingthePCBproductionpackage),etc.(3)ICdesignsoftwareICdesigntoolsmany,includingaccordingtomarkettheshareofrowCadence,behaviorwaslittleandSynopsys.ThesethreeareASICdesigndomainisquitefamoussoftwarevendors.Othercompa