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《OrCAD Capture User Guide -- 1. Basic elements of Capture design 》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、OrCADCaptureUserGuide,ProductVersion16.31BasicelementsofCapturedesignThischaptercovers:"ProcessingyourPCBdesign""Instancesandoccurrences""Flatvs.hierarchicaldesigns""Usingorthogonaldrag""Non-LinearEditor(Fisheye)""PCBEditor3DFootprintViewer""Partpackaging""Programmable
2、logicprojects""Workingwithmultiplewindows""Autorecovery""Movingaroundintheeditors""Capturedirectorymap""Captureconfiguration""Intertoolcommunication"ProcessingyourPCBdesignThePCBdesignprocesstypicallyinvolvesplacingandconnectingparts;specifyinghowthey'retobepackaged;un
3、iquelyidentifyingthem;addinginformationforsimulation,synthesis,boardlayout,purchasing,orotherexternalfunctions;andincorporatinginformationfromexternalfunctions.1Onceyoufinishafirstpassatplacingandconnectingparts,usethecommandsontheToolsmenuintheprojectmanagertocomplete
4、theprocess.Clickonthecommandnamesinthefigureforinformationaboutthetoolcommands.Asshowninthefigure,youuseAnnotate,DesignRulesCheck,andCrossReferencetopackagethepartsinyourdesignandmakesuretherearenounconnectedparts,unwantedconnections,orotherinvaliddesignconditions.Inpr
5、actice,youmightrunthesetoolsseveraltimesbeforemovingontothenextphase.Note:Generally,youshouldrunDesignRulesChecktoverifyyourdesignbeforeyougenerateanetlist.Thisallowsformoreefficientnetlistcreation,andyoucanconcentrateonnetlist-specificproblemsiftheyshouldoccurduringth
6、eCreateNetlistprocess.DesignRulesCheckwarnsyouifcertainconditionsexistinyourdesign.Theseverityofthespecificproblemmaypreventcompletionofthedesign.Otherconditionsaresubjecttoyourjudgment,andmaybeofnoconsequence.OnceyouaresatisfiedwiththeresultsofdesigntestslikeDesignRul
7、esCheck,thenproceedwiththecreationofanetlist.Youcanaddpropertiesorchangetheirvaluesatanypoint,andthereareseveralwaystodothis.Ifyouwanttochangethevalueofoneortwoproperties,justeditthemontheschematicpage.Toeditpropertiesonmanypartsatthesametime,useUpdatePropertiesorCaptu
8、re'sbuilt-inspreadsheeteditor(fromtheEditmenu,chooseBrowseandthenParts).Ifyou'remorecomfortableeditinginafull-feature
