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 N/A for all timing paths 

Last post Mon, Dec 17 2012 2:29 PM by ErezBS. 5 replies.
Started by ErezBS 14 Dec 2012 03:40 AM. Topic has 5 replies and 1011 views
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  • Fri, Dec 14 2012 3:40 AM

    • ErezBS
    • Top 500 Contributor
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    N/A for all timing paths Reply

    Hi,

    I am running Encounter with ILM blocks.

    i have succesfully created the ILM and imported them to my top level.

    However, after placement step ends, and i run timeDesign, i am getting "N/A" for all values in timeDesign summary table.

    the sdc file is well defined and succesfully loaded at the beggining.

    only after i run "flattenIlm" and resource the sdc file, i can see values in timeDesign table.

     

    Help anyone??

    Thanks! 

    • Post Points: 20
  • Fri, Dec 14 2012 6:56 AM

    • wally1
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    • Bellevue, WA
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    Re: N/A for all timing paths Reply

    Make sure you specify the SDCs using create_constraint_mode/update_constraint_mode -ilm_sdc_files. The SDCs specified with the -ilm_sdc_files option are used when the SDCs are flattened. The -sdc_files is used when the blocks are represented with .libs instead of ILMs.

    Regards,

    Brian

    • Post Points: 35
  • Fri, Dec 14 2012 2:26 PM

    • ErezBS
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    • Joined on Mon, Nov 5 2012
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    Re: N/A for all timing paths Reply

    Hi, thanks for your answer. 

    A few more questions:

    I should define the constraint mode even if i dont work with mcmm?

    the sdc for ilms is the sdc created with the ilm?

    Thanks! 

    • Post Points: 5
  • Sat, Dec 15 2012 12:12 AM

    • ErezBS
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    Re: N/A for all timing paths Reply

    BTW. what should i define in order to work with ILM and non MCMM design?

    thanks. 

    • Post Points: 20
  • Mon, Dec 17 2012 10:20 AM

    • wally1
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    • Bellevue, WA
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    Re: N/A for all timing paths Reply

    To specify the ILM SDCs in a non-MMMC flow list them in the config file with the variable "set rda_Input(ui_timingcon_file,full)". The file specified is used when the ILMs are flattened. The related variable "set rda_Input(ui_timingcon_file)" is used when the blocks are represented with .libs.

    - Brian

     

    • Post Points: 20
  • Mon, Dec 17 2012 2:29 PM

    • ErezBS
    • Top 500 Contributor
    • Joined on Mon, Nov 5 2012
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    Re: N/A for all timing paths Reply
    thanks.
    • Post Points: 5
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Started by ErezBS at 14 Dec 2012 03:40 AM. Topic has 5 replies.