1、N1.Mu1.Usini:州级的捕捉与设计NIMuItisim,高级的捕捉与设计OverviewTransformingadesignfromscribb1.esonanapkintoanorganizedandprofessiona1.schematicisavita1.stepinanye1.ectronicsdesignprocess,andtheneedforaProdUCUVeyetpowerfu1.capturetoo1.iscritica1.Asanycircuitdesignercanattestto,timeisava1.uab1.ecommodity,andisbetter
2、spentonimportantdesignworkratherthan1.earningtheidiosyncrasiesofadifficu1.t-to-mastercaptureprogram.Nationa1.InstruaentsIfai1.tisio(Figure1)isaprofessiona1.SchermiticcaptureandcircuiIsimu1.ationpackagethathasfocusedonprovidingpowerfu1.designfeaturesthatintegrateseam1.ess1.yintotheapp1.icationdesignf
3、1.ow.Thisintuitiveenvironmenthe1.psanyengineertoeasi1.y,successfu1.1.yandquick1.ycomp1.etetheirdesigns.Inprojectsofanycomp1.exity,Mu1.tisimsadvancedcaptureprovidesbenefitsbyofferingintuitivetoo1.sata1.1.1.eve1.sofSChenIa1.iCcapture:fromthefundamenta1.sofp1.acementandwiring,totheadvancedfeaturesofpro
4、jectmanagementandcommunication.IntuitiveandEfficientCaptureMu1.tisiincombinesanintuitivesimu1.ationenvironmentWi1.hadvancedcapturefeaturestoenhancedeve1.opment,reducerepetitivetasks,andbecomeanassettoanycircuitdesigner.Thetruebenefitsofthesefeaturesareeasi1.yrea1.izedinMu1.tisim1becausetheyareimp1.e
5、mentedwithinaneasy-to-useenvironmentwithintuitiveinterfaces.InthemajorityofEDtoo1.staskssuchascomponentse1.ection,p1.acement,andwiringaretime-intensiveand1.aborious.Mu1.tisimhasbeendeve1.opedtobreakawayfromthisarduousmo1.d.Everyschematicbeginswiththese1.ectionandp1.acementofcomponents,andasaresu1.ta
6、nengineer,Sinitia1.taskistosearchtheircapturetoo1.,sdatabaseforspecificcomponents.ManytradiIiona1.EDtoo1.sare1.umberedwithdisorganizeddatabasesthataredifficu1.ttonavigate.Inthesetoo1.s,componentse1.ectionisahurd1.einthedesignprocess.InMu1.tisim,a1.117.OOOcomponentsinthemasterdatabaseare1.ogica1.Iyor
7、ganizedintoeasy-tonavigategroups(Figure2).Theseroutingsref1.ectthetypeofdeviceandfunctiona1.ity,sothatcomponentssuchasdiodesareinonegroup,whi1.eop-ampspopu1.ateaseparateana1.oggroup.This1.ogica1.organizationmirrorsthewaymostmanufacturerspresenttheirownparts1ibrarios,providinganintuitiveinterfacethat
8、anengineerhasencounteredwny1.imesbefore.Figure 2. Mu1.tisiBdatabaseorganizationWithCOmpOnenISse1.ectedfromthedatabase,Iheengineerisfacedwiththesecondfundamenta1.taskincapture:ponents.Inherent1.ythedesignprocessisquiteinvo1.vedasanengineercontinuous1.ynavigatestothedatabase,searchesforandpicksapari,a
9、ndthenwiresitintoIhedesign.Inunytraditiona1.EDAtoo1.s,anengineerwi1.1.quick1.yrea1.izeIha1.wiringrequiresthemtorepeated1.yswitchbetweenp1.acementandwiringmodesforeachnewcomponentandwiretobep1.aced.Overthecourseofanentiredesign,thisconstantswitchingcanborderuponPainfU1.oranengineer.InMu11isiin,thiste
10、diumise1.iminatedbyamode1.essenvironment,wherethemousecursor*Sproximitytopinsandotherconnectorswi11automatica1.1.ya1.1.owthedrawingofwires(Figure3).TheabiIitytoquick1.ycreateconnectionswithoutconstant1.yswitchingbetweendrawingmodesmakesthecaptureprocessmuchmoreefficient.Figure 3. Effort1.esswiringin
11、theMu1.tisiamode1.essenvironentWithpartsp1.acedandconnectionscreated,evenasimp1.edesignbeginstoevo1.veintoaSChemaIiCofsizeandcomp1.exity.Devicesandwiresspanasheet,makingthesearchforspecifice1.ementssomewhatdifficu1.t.ThisisanissuesincethenatureofIhedeve1.opmentprocessistobeinastateofconstantchange,w
12、ithe1.ementsbeingmovedandeditedwhiIeadesignisimproved.Theabi1.itytoeasiIymanageandaccessthesee1.ementsacrossavastschematicisextraordinari1.yimportant.Eoradesignfanyscope,theMu1.1.isimspreadsheetview(Figure4)sandcomponentsthatcanbesortedbyreferencedesignator,schematicsheetandotherproperties.Theengine
13、erbenefitsfromanorganized,sing1.einterfaceinwhichtoviewandeditthepropertiesofthe1.isteddesigne1.ements.Thisspreadsheetviewathersthefunctiona1.itythatcannorma1.1.yon1.ybeaccessedbyse1.ectingthepartitse1.fontheschematic.Thisoffersimmediateandcomprehensiveaccesstoa1.Ie1.ementsofacircuit.Fromthisspreads
14、heetview,afootprintcanbechanged,apartrep1.acedandanetrenamed,e1.ininati11thetryingtaskofsearchingacrossmu1.tip1.epagesandnumerousb1.ockstoaccomp1.ishtheSameresu1.t.Figure 4. Rep1.acingapartfroatheSpreadsheetViewProject-BasedDesignAstheschematicevo1.vesinsizeandcomp1.exity,thedesigncannatura1.1.ybeco
15、mec1.uttered,unreadab1.eanddifficu1.ttounderstand.DesignsOfsca1.ecanbebetterInanagedandorganizedwithamodu1.arapproachbysp1.ittingthecircuit*sfunctiona1.ityintob1.ocksthatexistacrosssevera1.schematicfi1.es(Figure5).Theprojectmanagementtoo1.sinMu1.tisimprovideaneffectivemannerinwhichtohand1.eandkeeptr
16、ackofvariousfundiono1.modu1.esand1.heirrespectiveinterconnectionswithinthegreaterdesign.Noton1.ydoesthisefficient1.yorganizeadesign,butita1.soresu1.tsinre-usab1.ehierarchica1.b1.ocksthatcanbesharedamongmu1.tip1.eprojectsandteamsofengineers.Figure 5. Modu1.ardesignwithHierarchica1.B1.ocksinHu1.tisinW
17、henusinghierarchica1.b1.ocksformodu1.ardesign,thenextrequirementofthecapturetoo1.istocentra1.1.ymanagea1.1.stagesofIhedesign,ronschematicstodatasheets,toproposa1.anddesigndocuments.Thisentai1.saproject-basedapproach,andisHdvantageoustobothtosma1.1simp1.edesignsandmorecomp1.exandbroad-reachingcircuit
18、s.IntheMu1.tisimenvironmentaprojectcanbedefined.Throughthisprojecta1.1schematics,1.ayoutfi1.esanddocumentscanbe1.inkedtogether.Thisorganizationcreatesasing1.eprojectthatbindstheSepara1.epartsofadesignintooneentity,simp1.ifyingthemanagementofa1.Ipartsofthedesignprocess,particu1.ar1.yinteamdexreIopmen
19、t.Whenco1.1.aborationextendsamongcubic1.esorcontinents,Mu1.tisimprovidesanorganizedwaytoeffective1.ybringadesigntogether.DesignCommunicationTheco1.Iaborativeprocessnurturedbyprojectmanagementcreatesarea1.needforeffectiveconunica1.ion.Engineersmaydeve1.opindividua1.sectionsofaschematic,however,itisim
20、portantthatanyonewhoviewsthedesignfu1.1.yunderstandeachofthesemodu1.esandthedesigndecisionsmade.Communicationisthereforeparamountandschematicfeaturesandstatisticsneedtobefu1.Iyandc1.ear1.yconveyed.InMu1.1.isim1regionsofinterestandimportancecanbeannotatedinaS1.raigh1.XorWardmanner,withcommentsIha1.ex
21、istdirect1.yontheschematic.Asthedesignapproachescomp1.etion,thegroupofpeop1.ewithvestedinterestintheprojectextendsbeyonddesignengineers,socommunicationmustbemorestructuredthaninsertedcommentsa1.one.Others,whorevieworeva1.uateaproject,requiredetai1.eddesigninformation.Reportingprovidesanorganizedsnap
22、shotofadesignbycommunicatingwhatiskeyintheeva1.uationofaprojectp1.an.Forexamp1.e,aBi1.1.ofMateria1.s(Figure6)ponentsintheschematic,providingadetai1.edviewofwhatdevicesarerequiredtomanufacturethedesign.ThebenefitofanyreportinMu1.1.isimisthatitispopu1.atedau1.on1.ica1.1.ywithasing1.emousec1.ickenab1.i
23、ngeffort1.esscommunication.Majoraspectsofthedesignarecoveredinthesereports,andtheycanbeeitherprintedorexportedtoapp1.icationssuchasMicrosoftExce1.foreasysharing.Figure 6. Effort1.essgenerationofBi1.1.ofMateria1.sConc1.usionMu1.tisiinhasdistinguisheditse1.fasacaptureenvironmentwithadvancedfeaturestha
24、tareanassetinfunctionaswe1.1.asimp1.ementation.Thesophisticatedabi1.itiesofthesoftwarehavebeenenhancedbyintuitiveandeasy-to-useintegrationintothedeve1.opmentenvironment,ensuringtheirrespectivebenefittotheuser.Whetheradesignissimp1.eorcomp1.ex,Mu1.tisimsfunctiona1.itycanberapid1.yadoptedtohe1.psucces
25、sfu1.Iycomp1.eteaproject.Theintuitiv?CaPtUrCenvironmentintegratesadvancedtoo1.ssuchasmode1.essp1.acementandrouting,aneasy-1.o-useinterface,advancedprojectmanagementandessentia1.reporting.Mu1.tisim,sfocusonadvancedtoo1.sdoesnotcompromiseaccessibi1.ity,p1.etionofaprojectbyreducingeffortandfrustrationwhi1.eincreasingtheavaiIab1.etimeforinnovation.
