uds bootloader 论文

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1、Bootloaderwithreprogrammingfunctionalityforelectroniccontrolunitsinvehicles:Analysis,designandImplementationDavidPehrssonJesúsGarzaEXAMWORK2012ELECTRICALENGINEERINGThisthesisworkisperformedatJönköpingUniversity,SchoolofEngineering,withinthesubjectareaElectricalEngineering.Theworkispart

2、ofthetwoyearmaster’sdegreeprogrammewiththespecializationinEmbeddedSystems.Theauthorisresponsibleforthegivenopinions,conclusionsandresults.Examiner:ShashiKumarSupervisor:AlfJohanssonScope:30credits(secondcycle)Date:2012-12-18AcknowledgementsWewouldliketothankeveryoneatQRTECHforthehelpth

3、eyhavegivenusandwewouldespeciallyliketothankAndreasKäckforthetechnicalsupportheprovidedwhenweneededit.WewillalsoliketothankLarsCarlssononQRTECHforallthehelpregardingthemasterthesis.WewouldalsoliketothanktheteachersatJTH,AlfJohanssonandShashiKumarfortheirsupport.iAbstractAbstractInanaut

4、omotivecontexttoday’sneedoftestingfunctionswhileinfactory,correctingfaultsintheworkshoporaddingextravalueintheaftermarketmakesitveryimportanttoeasilybeabletodownloadnewsoftwaretotheelectroniccontrolunitsinvehicles.IntheplatformforstandardautomotivesoftwaredevelopmentcalledAUTOSAR,twokn

5、ownprotocolsarepresentedtospecifytheprocedureonhowtoimplementthisdownloadoperation:UnifiedDiagnosticServices(UDS)andtheUniversalMeasurementandCalibrationProtocol(XCP).HoweverthepartoftheUDSandXCPstandardsthatisaboutreprogrammingisnotcompletelyapartoftheAUTOSARstandardyet.Inthisthesis,U

6、DSandXCPhavebeencomparedtoevaluatewhichofthetwothathasmostsupportinAUTOSARtodayandaremostlikelytobefullyintegratedintoAUTOSARinthefuture.SinceUDSalreadyhassupportinAUTOSARforsomeofthefunctionsneededforreprogrammingandbecauseofthefactthatUDSisapartoftheextensivelyusedOn-boardDiagnostics

7、tandard(OBD-II),UDSischosentobethemostsuitableprotocolforimplementingreprogrammingfunctionalityaccordingtoAUTOSAR.AbootloaderwiththeabilitytodownloaddatahasbeendevelopedusingonlyrelevantfunctionsfromUDSandfollowingtheAUTOSARspecificationswhereitisapplicable.iiSammanfattningSammanfatt