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 Not able to select the objects through pointers 

Last post Sun, Jul 22 2012 10:37 PM by smachha. 2 replies.
Started by smachha 20 Jul 2012 04:15 AM. Topic has 2 replies and 1873 views
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  • Fri, Jul 20 2012 4:15 AM

    • smachha
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    • Joined on Thu, Apr 15 2010
    • Posts 14
    • Points 220
    Not able to select the objects through pointers Reply

    Hi ,

    Recently, I got a case where i need to select all Via08. i wanna go through dbGet for it. 

    Here is what i tried, 

    dbGet top.nets.sVias.via.name VIAGEN89_1  gives me all VIAGEN89_1 list. I used -p optiuon to get the db pointers .

     dbGet top.nets.sVias.via.name VIAGEN89_1 -p is giving me db Pointers but all the pointers are looking same, that means 

    dbGet -u top.nets.sVias.via.name VIAGEN89_1 is giving one pointer.

    Why is it giving like this ? and dbSelectObj [dbGet top.nets.sVias.via.name VIAGEN89_1 -p] is not selecting the via, why?

    I tried for the insts , though it is giving the pointers correct but not selecting with dbSelectObj.

    can some one help me. I wanna learn more about the dbGet.

     

    Thanks,

    sunil.

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    • Post Points: 20
  • Fri, Jul 20 2012 5:37 AM

    • BobD
    • Top 25 Contributor
    • Joined on Fri, Jul 11 2008
    • Chelmsford, MA
    • Posts 247
    • Points 9,325
    Re: Not able to select the objects through pointers Reply

    Hi Sunil,

    It looks like you're on the right track, but I think you need to do a "-p2" instead of "-p" because you want the pointer to the via instantiation rather than the via master.

    Here's a blog post on selecting by pointer:
    http://www.cadence.com/Community/blogs/di/archive/2009/12/16/selecting-pointers-with-dbget-and-dbselectobj.aspx 

    Some useful dbGet one-liners:
    http://www.cadence.com/Community/blogs/di/archive/2009/08/12/useful-dbget-one-liners.aspx

    And here's a presentation I use to get users started with dbGet (Cadence.com login required): 
    http://support.cadence.com/wps/mypoc/cos?uri=deeplinkmin:DocumentViewer;src=wp;q=Training/Digital_IC_Design/dbGet.pdf

    Hope this helps,
    Bob 

    • Post Points: 20
  • Sun, Jul 22 2012 10:37 PM

    • smachha
    • Not Ranked
    • Joined on Thu, Apr 15 2010
    • Posts 14
    • Points 220
    Re: Not able to select the objects through pointers Reply

    Hi Bob,

    Thanks for the help. I got it and able to do what I want to.

    Thanks,

    Sunil.

    • Post Points: 5
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Started by smachha at 20 Jul 2012 04:15 AM. Topic has 2 replies.