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 OCEAN simulation used for envlp analysis 

Last post Fri, Apr 3 2009 7:21 AM by Andrew Beckett. 3 replies.
Started by Ueue 02 Apr 2009 06:22 AM. Topic has 3 replies and 3321 views
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  • Thu, Apr 2 2009 6:22 AM

    • Ueue
    • Top 200 Contributor
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    • Posts 41
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    OCEAN simulation used for envlp analysis Reply

    Hi,

    I have a problem executing envlp analysis through OCEAN scripts. If I try to execute the simulation with the graphic interface, all is ok, but saving the script and executing it, an error stops the envlp simulation. The error is:

    "Error found by spectre during envelope following analysis `envlp'.

    ERROR (SPCRTRF-15099): The clock name is not specified for the envelope

    following analysis.To fix the problem, use the 'clockname' parameter to

    specify a clock name. "

    But there is not this error when I execute it from icfb.

    My script is something like that:

    "...

    analysis('envlp ?harms "1" ?stop "200u" ?clockname "fc"

    ?errpreset "conservative" ?readic "enc.fc" ?writefinal "env.fc" ?method "gear2only"

    ?relref "alllocal" ?lteratio "10" )

    analysis('pss ?fund "915M" ?harms "1" ?errpreset "conservative"

    ?readic "env.fc" ?tstabmethod "gear2only" ?relref "alllocal" ?lteratio "10" )

    desVar( "W2" 15 )

    desVar( "W1" 10 )

    desVar( "Vrf" 185m )

    option( 'temp "27.0"

    )

    temp( 27.0 )

    paramAnalysis("W1" ?values '(0.3 3 )

    paramAnalysis("W2" ?values '(0.3 3 )

    ))

    paramRun()

    ..."  

     

    Thanks a lot.

    Stefano 

     

     

    • Post Points: 20
  • Thu, Apr 2 2009 7:47 AM

    Re: OCEAN simulation used for envlp analysis Reply

    What version of the IC tools are you using (Help->About in the CIW)? And which version of spectre (should appear at the top of the log file)?

    Can you check in the input.scs and post the envlp analysis line that you see in this file?

    Regards,

    Andrew.

    • Post Points: 20
  • Fri, Apr 3 2009 1:56 AM

    • Ueue
    • Top 200 Contributor
    • Joined on Wed, Mar 4 2009
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    Re: OCEAN simulation used for envlp analysis Reply

    Thanks for your answer!

    The version of icfb is 5.1.0, the sub-version 5.10.41.500.5.96!

    If I generate the netlist in an OCEAN script, in the file input.scs there is not the clockname, as shown in the following lines:

    "

    envlp envlp harms=1 stop=200u errpreset=conservative readic="enc.fc" \

    writefinal="env.fc" method=gear2only relref=alllocal lteratio=10 \

    annotate=status

    "

    But if I write the clockname in the file, the OCEAN simulation works.

    Why do you think I have this problem?

    Is it possible to change this file directly from the OCEAN script?

     

    Thanks a lot.

    Stefano

    • Post Points: 20
  • Fri, Apr 3 2009 7:21 AM

    Re: OCEAN simulation used for envlp analysis Reply

    I did a bit of searching, and found exactly the same problem reported (in IC612) which was fixed (under CCR 466387) in November 2008. I certainly don't see the problem in the latest IC5141 ISR, so I think you will need to install the latest hotfix, or alternatively specify a frequency or period directly rather than via a clockname.

    Regards,

    Andrew.

    • Post Points: 5
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Started by Ueue at 02 Apr 2009 06:22 AM. Topic has 3 replies.