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 How do I delete clock groups (created via set_clock_groups) 

Last post Tue, Jun 18 2013 6:15 AM by grasshopper. 1 replies.
Started by moogydmaxim 03 May 2013 12:14 PM. Topic has 1 replies and 912 views
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  • Fri, May 3 2013 12:14 PM

    How do I delete clock groups (created via set_clock_groups) Reply

    Hi,

    I have been using set_false_paths between clocks, and found out that it is better to use clock groups using set_clock_groups. Therefore, I updated my SDC files, but I now have a slight issue.

     I use RTL compiler to do some sanity checks of SDC prior to handoff. In pseudo code

    read netlsit

    for sdc in func1.sdc func2.sdc scan.sdc loop

       reset_design

        read_sdc

        timing lint, timing reports etc

         write_sdc -strict

     endloop

    Previously, this has worked well, but it seems that clock_groups cannot be deleted. In the above, reset_design leaves the clock groups untouched, therefore my exported SDC files have clock groups for clocks that may not exist.

    As an experiment, I also rm /design/my_design and reloaded - the clock groups were still not deleted !

    Any ideas?

    Thanks,

    Steven

     

     

    • Post Points: 20
  • Tue, Jun 18 2013 6:15 AM

    • grasshopper
    • Top 25 Contributor
    • Joined on Thu, Jul 17 2008
    • Chelmsford, MA
    • Posts 242
    • Points 3,205
    Re: How do I delete clock groups (created via set_clock_groups) Reply

     Hi Steven,

     this was a bug and has been addressed in recent releases. If you need a workaround for an older release, please work with your AE or support contact for more details.

     

    For reference for you AE or support, CCR: 1145910

     

    regards,

    gh-

    • Post Points: 5
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Started by moogydmaxim at 03 May 2013 12:14 PM. Topic has 1 replies.