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Selecting all instances in a cellview without opening window view

lc2710

 Hi all,

I am writing a program which involves displaying the heirarchical tree of all the instances and nets in a Cadence cell, exactly like it appears in the side of the cellview in Cadence. To do this I am writing a .restore file to the command line which should select all objects in the cellview. My problem is that I don't want my program to open Cadence, but can't find a way to select all the objects in a cellview without having the view window open and using the function geSelectAll().

 

Is this possible to do? 

 

All help is much appreciated

Louis

  • I'm not sure why you want to "select" the items. You can loop through all the instances in a cellview without opening it in a window if you have the cellview id:

    cvId = dbOpenCellViewByType("myLib" "myCell" "myView")
    foreach(inst cvId~>instances
        printf("Lib: %s  Cell: %s  View: %s  Inst Name: %s\n" inst~>libName inst~>cellName inst~>viewName inst~>name)
    )

    Derek

  •  Hi Derek,

    Thanks alot that's just what I needed! 

    Louis

  •  To generate a tree, you may want to loop through the instance headers instead of all the instances. The instHeader (cvId~>instHeaders) points to a master and to all the instances which use that master. A regular hierarchical cell has only one instHeader pointing to all of its instances. A pcell or via may have multiple instHeaders, one for the superMaster and one for each variant master.

    Ted

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