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 ICCR: toggle exclude for bits of a bus 

Last post Thu, May 24 2012 5:12 AM by thejas. 7 replies.
Started by Cadence Forum 17 Oct 2008 06:41 AM. Topic has 7 replies.
Page 1 of 1 (8 items)
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  • Fri, Oct 17 2008 6:41 AM

    ICCR: toggle exclude for bits of a bus Reply

    Dear Sirs,

    could anyone give me an example on how to exclude a bit of an internal bus in the toggle exclude file for ncelab?

    For instance, if I use

    INSTANCE <pathname>:<bus_name>*

    I exclude from the statistics all the bits of the bus, but specifying a single bit, it seems not working

    INSTANCE <pathname>:<bus_name>(<bit_number>)

    I tried also to escape the parenthesis with

    INSTANCE <pathname><bus_name>\(<bit_number>\)

    but without success.

    Thanks in advance

    Sergio
    • Post Points: 20

  • Tue, Oct 21 2008 1:08 PM

    • tpylant
    • Top 50 Contributor
    • Joined on Fri, Jul 11 2008
    • Austin, TX
    • Posts 108
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    Re: ICCR: toggle exclude for bits of a bus Reply

    You probably need to add the -bitexclude option.

    • Post Points: 20

  • Thu, Oct 23 2008 8:17 AM

    Re: ICCR: toggle exclude for bits of a bus Reply

    Thanks for answering. Where should I find more info about this option? I was expecting to find a note in a documentation related to ICCR/ncelab -covfile or related to the command in the coverage command file "set toggle excludefile". Should I look anywhere else? Sergio
    • Post Points: 20

  • Mon, Oct 27 2008 11:58 AM

    • Mickey
    • Top 75 Contributor
    • Joined on Mon, Oct 13 2008
    • Austin, TX
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    Re: ICCR: toggle exclude for bits of a bus Reply

     Hi Sergio,

    The bitexclude option is an argument to the set_toggle_excludefile option used in a coverage configuration file.  The description is as follows: 

    set_toggle_excludefile [-nolog] [-bitexclude] <file>

    where

    • -nolog ensures that no log file is generated to dump the list of signals that were excluded for toggle coverage. In the absence of this option, a log file named toggle_exclude.log is generated.

    • -bitexclude allows exclusion of bit selects of vector signals. With this option, the patterns in the exclude file are matched against the expanded names of each vector bit.

    • <file> is the name of a file that contains a list of signal names that are to be excluded from toggle coverage. A warning is reported if <file> includes signals of instances/modules, which are deselected using the deselect_coverage command in the coverage configuration file.

    you can find specific documentation on how to write the excluded signals file by looking in the ICC User Guide (<install>/doc/iccug/iccug.pdf, look in chapter 8 "Generating Coverage Data"), or you can also open that document within cdnshelp.

    Hope that helps

    Micke

    • Post Points: 35

  • Tue, Oct 28 2008 2:36 AM

    Re: ICCR: toggle exclude for bits of a bus Reply

    Hi Micke,

    thanks it works with IUS 6.11-usr4.

    Most probably I was looking into an old doc (ICC UG Feb, 2006), which is not reporting this option.

     Ciao

    Sergio
    • Post Points: 5

  • Thu, Jul 14 2011 2:34 AM

    • mdkaleem
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    • Bangalore, Karnataka
    • Posts 1
    • Points 20
    Re: ICCR: toggle exclude for bits of a bus Reply

    hi,

    can u pls give an example for usage of set_toggle_excludefile and also do we have to use this command in Makefile or else where?
    • Post Points: 20

  • Thu, Feb 9 2012 4:06 AM

    • thejas
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    • Joined on Thu, Feb 9 2012
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    Re: ICCR: toggle exclude for bits of a bus Reply

    check 12 chapter in the iccr user guide

     
    • Post Points: 5

  • Thu, May 24 2012 5:12 AM

    • thejas
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    • Joined on Thu, Feb 9 2012
    • Posts 2
    • Points 10
    RE: ICCR: toggle exclude for bits of a bus Reply

    Hi.

    Thank youJ

     

     

    From: thejas [mailto:bounce-thejas@cadence.com]
    Sent: Thursday, February 09, 2012 5:37 PM
    To: Thejas M S
    Subject: Re: [System Design and Verification Forum] ICCR: toggle exclude for bits of a bus

     

    check 12 chapter in the iccr user guide

     




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    • Post Points: 5
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Started by Cadence Forum at 17 Oct 2008 06:41 AM. Topic has 7 replies.