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1、单片机自动检测系统的设计_王小利（Theautomaticdetectionsystemdesign_WangXiaoliMCU）No.The29volume4LaboratoryresearchandexplorationVol.Twenty-nineNo.Four2010AprilRESEARCHANDEXPLORATIONINLABORATORYApr.TwothousandandtenDesignofautomaticdetectionsystembasedonsinglechipmicrocomputerWangXiaoli,DongXiaozh
2、ou(Schoolofinformationengineering,ShandongUniversityatWeihai,Shandong,Weihai)264209)Abstract:acomplexprogrammablelogicdevice(CPLD)isdesigned(CPLD)tocontrolthecoreofthedetectionsystem,toachieveautomaticdetectionofdamagetothemicrocontrollerTest.ThesystemconsistsmainlyofCPLDcontrolmo
3、dule,JTAGparallelportdownloadmodule,serialtransceivermoduleandSCMtypeconversionboardcomposition.CPLDFirst,thedetectedmicrocontrollerisautomaticallydetectedAftertheISPdownloadcompletesthesignal,itstartstheserialcommunicationwiththemicrocontroller,andthenanalyzesandprocessesthewrite
4、andreadThedataofsinglechipisconsistent,andtheserialcommunicationisworkedout.ContinuetodetectSCMGPIO,andsynchronousdisplayMCUmainWhetherthefunctionisnormal,whichcandirectlyjudgethequalityofsinglechipmicrocomputer.ComparedwiththetraditionalSCMdetectiontechnology,thesystemtestautomat
5、ionHighdegree,highdetectionrateandfasttestingspeed.KeywordSinglechipmicrocomputerAutomatictestComplexprogrammablelogicdevice,CPLDCLCnumber:TMNinehundredandthirtypointonetwo+1documentidentificationcodeAarticlenumber10067167:(2010)04005203DesignOfMCUAutomaticTestSystemWANGXiao-li,DO
6、NGXiao-zhou(SchoolOfInformationEngineering,ShandongUniversityAtWeihai,Weihai264209,China)Abstract:TheControllableCoreOfThisSystem,whichCanAutomaticallyDetectTheProblemsOfMCU,isTheComplexProgrammableLogicDevices(CPLD)ThisSystemIsComposedMainlyOfTheControlModuleOfCPLD,theModuleOfPar
7、allelDownload,serialTransceiver.First,theAutomaticSystemDetectsTheSignalWhenTheDownloadOfMCUIsCompleted,CPLDCommunicatesWithMCUInAnAsynchronousReceiver.AfterThisCPLDAnalysesTheDataWhichWasWrittenAndThenReadFromMCU,soComesToTheConclusionOfTheWorkingConditionsOfSerialCommunication.F
8、inally,theGPIOOfMCUAreTested.AllO
