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20097JISUANJIYUXIANDAIHUA167:100622475(2009)0720123203:2008207201:(19762),,,,,:LabVIEW(,408100):LabVIEW,LabVIEW74148823LabVIEW,4228231024,,,,,:;;LabVIEW;:G434:Adoi:10.3969/j.issn.100622475.2009.07.035ApplicationofLabVIEWinTeachingofDigitalCircuitsYANWen2juan(YangtzeNormalUniversity,Chongqing408100,China)Abstract:AccordingtothecharactersandfunctionsofLabVIEW,simulationteachingforLabVIEWdigitalcircuitsisputfor2ward.Setting823encoder,madeof74148circuits,asthepriorityencoder,thepaperanalyzestheapplicationofLabVIEWinteachingofdigitalcircuits.Astheresultofresearchfindings,thedesigniscompletedforthe422,823and1024normalencodersandpriorityencoders.Programsforalltheencodersaregatheredonthepanelofthemainprograms,anddisplayedintheformofdigitalnumbers.Throughthesimulationverification,itisfoundoutthatitfunctionsinthesamewayasthatoftheactualelectron2iccomponentsandparts.Inthisway,theteachingmethodsbecomediversified,theteachingqualityisimproved,andtheinterestandactiveparticipationforlearningisstrengthened.Keywords:digitalcircuits;encoder;LabVIEW;simulation0(),,,,,,LabVIEWLabVIEW(LaboratoryVirtualInstrumentEngineer2ingWorkbench)NI(NationalInstrument)1986,,,,;LabVIEW,;,[124],74LS148823LabVIEW[526]124200971,()(),(),[7]74148823,1I0I78,Y2Y1Y03ST,ST=0;ST=1Y2Y1Y0YSYEX,YS,YEX,1[829]1823182313Z2:Y2=(I4+I5+I6+I7)STY1=(I2I4I5+I3I4I5+I6+I7)STY0=(I1I2I4I6+I3I4I6+I5I6+I7)ST274148,74148;,,[10](10),LED,2(),,3,,,,[11212],420097:LabVIEW125,ST=0,,LED;ST=1,,ST=1,I6I5I3I11,I6,Y2=1,Y1=1,Y0=0,Out2Out1,Out0,I6,63,,,,LabVIEW,,54228231024(8421BCD),,54LabVIEW4228238421BCD,,LabVIEW,,;,,:[1],,.LabVIEW[J].,2006,28(6):89291.[2].MATLAB[J].,2007(6):1012102.[3],,,.LabVIEW[J].,2007,23(10):2592261.[4],.LabVIEW[J].,2001,20(3):64266.[5].MATLAB[J].,2004():54255.[6],.MATLAB[J].,2006,22(6):92294.[7].(2)[M].:,1998.[8].--[M].:,2000.[9],.()[M].:,2002.[10],.MATLABLabVIEWSystemView[M].:,2005.[11].LabVIEW[M].:,2003.[12],.LabVIEW7.1[M].:,2004.