英文文献及翻译FPGAWord文档格式.docx
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英文文献及翻译FPGAWord文档格式.docx
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英文文献及翻译FPGA@#@BuildingProgrammableAutomationControllerswithLabVIEWFPGA@#@Overview@#@ProgrammableAutomationControllers(PACs)aregainingacceptancewithintheindustrialcontrolmarketastheidealsolutionforapplicationsthatrequirehighlyintegratedanaloganddigitalI/O,floating-pointprocessing,andseamlessconnectivitytomultipleprocessingnodes.NationalInstrumentsoffersavarietyofPACsolutionspoweredbyonecommonsoftwaredevelopmentenvironment,NILabVIEW.WithLabVIEW,youcanbuildcustomI/Ointerfacesforindustrialapplicationsusingadd-onsoftware,suchastheNILabVIEWFPGAModule.@#@WiththeLabVIEWFPGAModuleandreconfigurableI/O(RIO)hardware,NationalInstrumentsdeliversanintuitive,accessiblesolutionforincorporatingtheflexibilityandcustomizabilityofFPGAtechnologyintoindustrialPACsystems.YoucandefinethelogicembeddedinFPGAchipsacrossthefamilyofRIOhardwaretargetswithoutknowinglow-levelhardwaredescriptionlanguages(HDLs)orboard-levelhardwaredesigndetails,aswellasquicklydefinehardwareforultrahigh-speedcontrol,customizedtimingandsynchronization,low-levelsignalprocessing,andcustomI/Owithanalog,digital,andcounterswithinasingledevice.YoualsocanintegrateyourcustomNIRIOhardwarewithimageacquisitionandanalysis,motioncontrol,andindustrialprotocols,suchasCANandRS232,torapidlyprototypeandimplementacompletePACsystem.@#@TableofContents@#@1.Introduction@#@2.NIRIOHardwareforPACs@#@3.BuildingPACswithLabVIEWandtheLabVIEWFPGAModule@#@4.FPGADevelopmentFlow@#@5.UsingNISoftMotiontoCreateCustomMotionControllers@#@6.Applications@#@7.Conclusion@#@Introduction@#@YoucanusegraphicalprogramminginLabVIEWandtheLabVIEWFPGAModuletoconfiguretheFPGA(field-programmablegatearray)onNIRIOdevices.RIOtechnology,themergingofLabVIEWgraphicalprogrammingwithFPGAsonNIRIOhardware,providesaflexibleplatformforcreatingsophisticatedmeasurementandcontrolsystemsthatyoucouldpreviouslycreateonlywithcustom-designedhardware.@#@AnFPGAisachipthatconsistsofmanyunconfiguredlogicgates.Unlikethefixed,vendor-definedfunctionalityofanASIC(application-specificintegratedcircuit)chip,youcanconfigureandreconfigurethelogiconFPGAsforyourspecificapplication.FPGAsareusedinapplicationswhereeitherthecostofdevelopingandfabricatinganASICisprohibitive,orthehardwaremustbereconfiguredafterbeingplacedintoservice.Theflexible,software-programmablearchitectureofFPGAsofferbenefitssuchashigh-performanceexecutionofcustomalgorithms,precisetimingandsynchronization,rapiddecisionmaking,andsimultaneousexecutionofparalleltasks.Today,FPGAsappearinsuchdevicesasinstruments,consumerelectronics,automobiles,aircraft,copymachines,andapplication-specificcomputerhardware.WhileFPGAsareoftenusedinindustrialcontrolproducts,FPGAfunctionalityhasnotpreviouslybeenmadeaccessibletoindustrialcontrolengineers.DefiningFPGAshashistoricallyrequiredexpertiseusingHDLprogrammingorcomplexdesigntoolsusedmorebyhardwaredesignengineersthanbycontrolengineers.@#@WiththeLabVIEWFPGAModuleandNIRIOhardware,younowcanuseLabVIEW,ahigh-levelgraphicaldevelopmentenvironmentdesignedspecificallyformeasurementandcontrolapplications,tocreatePACsthathavethecustomization,flexibility,andhigh-performanceofFPGAs.BecausetheLabVIEWFPGAModuleconfigurescustomcircuitryinhardware,yoursystemcanprocessandgeneratesynchronizedanaloganddigitalsignalsrapidlyanddeterministically.@#@NIRIOHardwareforPACs@#@Historically,programmingFPGAshasbeenlimitedtoengineerswhohavein-depthknowledgeofVHDLorotherlow-leveldesigntools,whichrequireovercomingaverysteeplearningcurve.WiththeLabVIEWFPGAModule,NIhasopenedFPGAtechnologytoabroadersetofengineerswhocannowdefineFPGAlogicusingLabVIEWgraphicaldevelopment.Measurementandcontrolengineerscanfocusprimarilyontheirtestandcontrolapplication,wheretheirexpertiselies,ratherthanthelow-levelsemanticsoftransferringlogicintothecellsofthechip.TheLabVIEWFPGAModulemodelworksbecauseofthetightintegrationbetweentheLabVIEWFPGAModuleandthecommercialoff-the-shelf(COTS)hardwarearchitectureoftheFPGAandsurroundingI/Ocomponents.@#@NationalInstrumentsPACsprovidemodular,off-the-shelfplatformsforyourindustrialcontrolapplications.WiththeimplementationofRIOtechnologyonPCI,PXI,andCompactVisionSystemplatformsandtheintroductionofRIO-basedCompactRIO,engineersnowhavethebenefitsofaCOTSplatformwiththehigh-performance,flexibility,andcustomizationbenefitsofFPGAsattheirdisposaltobuildPACs.NationalInstrumentsPCIandPXIRSeriesplug-indevicesprovideanaloganddig
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