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Liberate for .lib generation of D flip flop

anandmohan

Hi,

I'm trying to characterize a D flip flop using Liberate_AMS. Here for the stimulus I'm creating a delay table (rather than using a test bench and using the define_deck command)....

I'm getting the delay values but not getting the setup and hold time to be characterized. I have verified the generated waveforms from the deck and its getting generated in a way so that the setup/hold time can get characterized. 

I have attached the snapshot of the delay table and also a snapshot of a portion of the log...

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  • I split your question into a new thread. The forum guidelines tell you not to keep posting new (unrelated) questions in an existing thread, as it makes it very hard for anyone else to benefit from them when they wander over lots of different topics.

    First of all, why are you using Liberate AMS for a D Flip Flop? This is a task better suited to standard Liberate rather than Liberate AMS.

    Regards,

    Andrew.

  • in reply to Andrew Beckett

    Ya, i know Liberate is more suited, but this was just to get this one cell characterised for a specific purpose. So tried with Liberate_AMS. However I feel anything which can be done with Liberate can also be done with Liberate_AMS (even though it makes the procedure tougher). So trying with Liberate_AMS.

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  • in reply to Andrew Beckett

    Ya, i know Liberate is more suited, but this was just to get this one cell characterised for a specific purpose. So tried with Liberate_AMS. However I feel anything which can be done with Liberate can also be done with Liberate_AMS (even though it makes the procedure tougher). So trying with Liberate_AMS.

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