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  3. Liberate_AMS for .lib generation.

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Liberate_AMS for .lib generation.

anandmohan
anandmohan over 7 years ago

Hi,

I'm having Liberate_AMS for characterization of AMS blocks. Can I use the same for the characterization of a std cell library ? 

The main difficulty involved is in generating the input stimulus files which need to be given in the form of tables in Liberate_AMS whereas it can be included with the attribute -vector inside the template file (in case of Liberate).

Still I managed to manually create those table files for ** number of cells. After that I included those tables using the define_table command in the template file.  I had to give ** define table commands (1 for each cell) . But I'm getting an error regarding "delay_template" not defined.

After all , I wanted to know, if characterising multiple cells (by including multiple input stimulus files) is possible in Liberate_AMS ?  Or is it a futile attempt trying to do that ?

Is there an inherent limitation on the number of cells that can be characterized using Liberate_AMS in a single run ?  (other than the brute force way of characterising 1 cell at a time and merging all of them- as I have huge number of cells - typically the number of cells usually present in a std cell library).

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  • Guangjun Cao
    Guangjun Cao over 7 years ago

    Liberate_AMS does one cell characterisation in each run. It is for AMS/Analog block or large IO block characterisation. 

    For standard cell characterisation, Liberate is the right choice, which can automatically generate all valid arcs after pre-characterisation analysis by the tool using InsideView technology.  

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  • Guangjun Cao
    Guangjun Cao over 7 years ago

    Liberate_AMS does one cell characterisation in each run. It is for AMS/Analog block or large IO block characterisation. 

    For standard cell characterisation, Liberate is the right choice, which can automatically generate all valid arcs after pre-characterisation analysis by the tool using InsideView technology.  

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