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 How we will Validate SDC?? 

Last post Mon, Jan 16 2012 11:03 AM by Kari. 3 replies.
Started by Ashok Nellore 04 Aug 2011 02:08 AM. Topic has 3 replies and 2607 views
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  • Thu, Aug 4 2011 2:08 AM

    • Ashok Nellore
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    • Joined on Sun, Jul 17 2011
    • Bangalore, Karnataka
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    How we will Validate SDC?? Reply
    How we will consider weather that SDC file is suitable to our design or not ??
    • Post Points: 20
  • Thu, Aug 4 2011 6:33 AM

    • grasshopper
    • Top 25 Contributor
    • Joined on Fri, Jul 18 2008
    • Chelmsford, MA
    • Posts 241
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    Re: How we will Validate SDC?? Reply

    hi Ashok,

    your question is quite vast in scope. Please define suitable. If I set my frequency target to 10GHz, it may be considered suitable for my applicaiton but unrealistic in current state of technology. If multi cycle paths are missing or there are more than required it is still suitable. What exactly do you mean ?

    You can certainly use tools like Conformal Constraint Designer to identify potential issues in your design constraints and that is exactly the purpose of such tool in life.  I am assuming that is what you were asking

     

    regards,

    gh-

    • Post Points: 20
  • Tue, Aug 9 2011 11:45 PM

    • Ashok Nellore
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    Re: How we will Validate SDC?? Reply
    how do we decide the constraints of SDC.?
    like max fanout max cap max trans?
    • Post Points: 20
  • Mon, Jan 16 2012 11:03 AM

    • Kari
    • Top 10 Contributor
    • Joined on Tue, Jul 15 2008
    • Cary, NC
    • Posts 693
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    Re: How we will Validate SDC?? Reply

     You may not need to set a max fanout. Generally, if you meet max cap and max tran, you should be fine. Max tran and cap limits are usually in the .lib files, but not always, so be sure to check. If we set a max tran in the SDC, it's usually because we want a tighter limit than what is in the .lib.

    • Post Points: 5
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Started by Ashok Nellore at 04 Aug 2011 02:08 AM. Topic has 3 replies.