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ID:33411228
大小:4.42 MB
页数:71页
时间:2019-02-25
《基于.xilinx+fpga的通用自动化测试方法的研究》由会员上传分享,免费在线阅读,更多相关内容在学术论文-天天文库。
1、ABSTRACTABSTRACTWiththecontinuousprogressinsemiconductorprocesstechnology,theintegrationofFPGAishigherthanbeforewhileFPGAperformsbetter.Anditsinternalstructureisalsomuchmorecomplex.Thoughit‟smoreandmoredifficulttotesttheentireFPGA,therequirementsinitsreliabilityandstabilityareincr
2、easing.NomattertotheuserorFPGAmanufacturer,howtoeffectivelytestFPGAisabigchallenge.Itdirectlyrelatedtotheproductdesignperiodandcost.NowthecurrentexistingFPGAtestmethodcouldnotmeettherequirements.Thispaperisaimedatsolvingthisproblem,tocarryoutageneral-purposeautomatedtestmethodforX
3、ilinxVirtexseriesFPGA‟sinterconnectresources.ThistestmethodcannotonlyensurehighcoverageforFPGAinternalresources,butalsotominimizethetotalnumberoftestconfigurations,thusreducingthecostoftest.OnthebasisofFPGAbasicstructureandcurrentexistingtestmethods,wedividetheinterconnectresource
4、sintodifferentlayersbyabsorbingtheoriesandtheoremsofgraphtheory.AndthenweproposethisgenerictestmodelwhichisapplicabletotheinterconnectresourcesofVirtexseries.Themodelisanabstractexpressionoftheunderlyingconnectionrelationship,applicabletoallVirtexseriesFPGAratherthanstudyingspecia
5、ltestschemewithvaryingFPGAseriesasdidinpreviouswork.ThenaroutingalgorithmbasedonthegenericIRmodelisstudiedwiththecombinationoftheconceptofedgecoloringandmatching.Thisalgorithmcanautomaticallysearchtheroutingpathandnodedisjointpaths,thusachievingautomaticgenerationoftestconfigurati
6、on,whichcangreatlyreducetimecost.TheautomaticgenerationoftestconfigurationforinterconnectresourceofVirtexandVirtex-IIFPGAdemonstratetheeffectivenessandthesuperiorityofthismethod.Theexistingtestmethodscouldnotachievehighfaultcoverage,andtheyarenotapplytotheVirtexFPGAseries.Duetouna
7、vailabilityofthegenericIRmodel,specificteststrategieshavetobeexploredcasebycase.Thesespecificteststrategiesareoftendevelopedmanually,involvingalabor-intensiveanderror-proneprocess.Thegenericautomatedtestingmethodwhichisproposedinthispapercansolvealltheseproblems.Ittrulyapplicablet
8、oVirtexseriesaswellasSpartanserie
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