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 Modifying an extracted view for post layout simulation. 

Last post Fri, Feb 1 2013 8:11 AM by Andrew Beckett. 4 replies.
Started by ghrshomali 20 Feb 2012 08:31 PM. Topic has 4 replies.
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  • Mon, Feb 20 2012 8:31 PM

    • ghrshomali
    • Not Ranked
    • Joined on Thu, Feb 16 2012
    • Posts 8
    • Points 130
    Modifying an extracted view for post layout simulation. Reply

    I am using IC 5.1.41 and Calibre 2010.4. I have an extracted view which is extracted by Calibre and I want to use it for post-layout simulation. When I modify the extracted view, Analog environment gives the following error:

    ERROR: Netlister: the cellview **** was modified since last extraction.

    Is there any way to modify an extracted view and use it for post layout simulation?

    Thank you very much.
     
    • Post Points: 20

  • Tue, Feb 21 2012 1:50 AM

    Re: Modifying an extracted view for post layout simulation. Reply

    You can use:

    dbSetConnCurrent(geGetEditCellView())

    and then save it. Note that this should obviously be done with caution because you may be destroying the integrity of the connectivity when you are editing the extracted view.

    Regards,

    Andrew.

    • Post Points: 20

  • Wed, Feb 22 2012 7:38 PM

    • ghrshomali
    • Not Ranked
    • Joined on Thu, Feb 16 2012
    • Posts 8
    • Points 130
    Re: Modifying an extracted view for post layout simulation. Reply

     Thank you very much Andrew.
    • Post Points: 20

  • Thu, Jan 31 2013 6:48 AM

    • pirateKing08
    • Not Ranked
    • Joined on Fri, Sep 16 2011
    • Cirencester, Gloucestershire
    • Posts 4
    • Points 65
    Re: Modifying an extracted view for post layout simulation. Reply

    wow fantastic trick!

     This saves editing the extracted netlist and doing a command line run simulation. Could this not be incorporated into the Parasitic Aware Design flow? With a health warning I agree. I found it useful as my layout effort is in a different time zone and when I found the extracted view was damaging my performance more than expected  I wanted to alter the design to make it more robust against the layout effects. A quick change to a device parameter within the extracted view then seeing if this has helped the extracted simulation result before issuing the change to layout is so useful
    • Post Points: 20

  • Fri, Feb 1 2013 8:11 AM

    Re: Modifying an extracted view for post layout simulation. Reply

    The idea is that you ought to be able to use the parameterisation flow to (e.g. the Variables and Parameters) assistant to do these "what if" experiments, but currently it's not possible with extracted views. But it's being looked into...

    Andrew.

    • Post Points: 5
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Started by ghrshomali at 20 Feb 2012 08:31 PM. Topic has 4 replies.