”occurence“和”instance“ 是對階層式的原理圖,要產生網絡的時候會有影響。實際舉例來說,一個模塊被引用3次,請問這個模塊裡面的元件對應號碼是多少? 這時候正常黃色格子裡面會有不同編號,最後所產生的網絡線和元件編號都不同。一般平面式的原理圖是不會有2個黃色的格子,正常只有1白1黃。 只要你能夠產生出正確的網表,可以先不管多个黄色的格子。 |
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http://www.seas.upenn.edu/~jan/spice/PSpice_CaptureGuideOrCAD.pdf/ }8 l E! K$ [, g" v 第31页8 B7 V( X% v' M6 F( u+ _) O9 ~ Instance and occurrence properties Since Capture allows for complex hierarchical design structures (as discussed in Chapter 6, Design structure),0 H& `2 N2 E0 B/ z1 }" U# g- Z each of the objects listed above can exist as instances or occurrences.8 ^/ @# A i8 T W9 V8 E) Y4 E; e5 N In complex hierarchical designs, a schematic page can be referenced (or reused) at several points in the design. An7 x d! U: i9 L* P5 R& F3 Q( h instance refers to the object that is placed on the defining schematic. An occurrence represents the use or reuse of that instance within a design. When you edit properties( z9 O! {$ z, A# @7 y& L: H c for an object, you can edit the instance, or you can edit a0 U- e$ j8 c% b" X particular occurrence of that instance. Instance properties An instance property is a user property applied to the, J |. ^/ a& `3 K placed instance of a part or symbol in the design. This includes PCB Footprint, Value, and Name properties of each placed part or symbol in a design. The instance property overrides the library definition.& }# C& f/ E. L9 S$ i An instance property will “shine through” to all9 K" V5 m) z! ~7 I Y occurrences of that instance unless it is overridden by occurrence properties. A change using any of the tools,+ J: t* {+ F) D& |7 ^ T like Annotate, also may update the instance property.1 k7 B7 s; k8 r- L Occurrence properties2 d1 R4 R3 @& m An occurrence property is a user property applied to9 `8 I# Q! F: j2 I multiple occurrences of place instances of parts or symbols in a design. The occurrence property overrides the instance property definition.# _: p% f& K7 D' B0 a The spreadsheet editors expand to display occurrence- P! A1 f+ e! z! l properties if values are different from the instance value. To quickly hide or display all the occurrence properties, press and hold the C key while clicking on one of the plus (+) symbols in the property editor. A change using any of the tools, like Annotate, also may' D8 U( ?, W: U: | update the instance property/ R# s, e, }9 E5 ^3 ~7 f 一下是谷歌翻译5 H& ^: \( D) F* d! t; L 实例和分身属性/ \/ M4 R& w; N9 l' j3 O" J 由于捕获允许的复杂的层次设计结构(如第6章,设计结构中讨论),上面列出的每个对象可以存在作为实例或事件。在复杂的层次设计,可引用的原理图页(或重用)在设计中的几点。一个实例是指定义原理图上放置对象。代表一个发生在设计中使用该实例或重用。当你编辑一个对象的属性,您可以编辑的实例,或者您也可以编辑该实例的特定发生。 实例属性. h$ K- Z0 P- @2 S0 t 实例属性是一个适用于放置在设计中的一部分或符号实例的用户属性。这包括印刷电路板的封装,数值,和每个放置的零件或设计符号的名称属性。实例属性重写库定义。实例属性将“大放异彩通过”,除非它是该实例的所有出现的分身属性所覆盖。改变使用任何工具,如注释,也有可能更新的实例属性。 事件属性9 v) \7 z# j6 J0 ^+ _% i 一个事件属性是应用在设计的零件或符号实例中多次出现的用户属性。事件属性将覆盖实例的属性定义。如果值是从实例值不同的电子表格编辑器,展开以显示分身属性。要快速隐藏或显示所有的分身属性,按住C键,同时单击在属性编辑器的加号(+)符号之一。$ ~: I3 K1 g2 L. ]6 a 改变使用任何工具,如注释,也有可能更新的实例属性。# w% f J- j# V |
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