Re: [IBIS-Users] Hspice ibischk4 tool

Hi All,

Does anybody know whether BUG82 is also fixed in ibischk4 Version 4.1.0beta
?

Thanks
slwu

Bob Ross wrote:

> Fabrizio:
>
> The difference between ibischk4 Version 4.0.1 and ibischk4 Version 4.0.1
> is BUG82. BUG82 was serious enough to justify a special release of
> ibischk4.
>
> http://eda.org/pub/ibis/bugs/ibischk/index.html
>
> A text list of what verion a bug fix has been implemented exists
> in the bugdir.txt file link at the end of this link.
>
> Bob
>
> Zanella, Fabrizio wrote:
>
> > The latest version of Synopsys Hspice, version 2004.09, uses the
> > ibischk4 tool, version 4.0.1. In a simulation I ran yesterday, Hspice
> > reported errors running the v4.0.1 ibischk4 with the rising and falling
> > waveforms when using an IBIS model as a driver.
> >
> > Here?s a sample of the errors:
> >
> > ERROR - Model osoc2_od: The [Rising Waveform]
> >
> > with [R_fixture]=60 Ohms and [V_fixture]=3.3V
> >
> > has TYP column DC endpoints of 2.02V and 3.30v, but
> >
> > an equivalent load applied to the model's I-V tables yields
> >
> > different voltages ( 2.02V and 2.02V),
> >
> > a difference of inf% and inf%, respectively.
> >
> > ERROR - Model osoc2_od: The [Falling Waveform]
> >
> > with [R_fixture]=60 Ohms and [V_fixture]=3.3V
> >
> > has TYP column DC endpoints of 2.02V and 3.30v, but
> >
> > an equivalent load applied to the model's I-V tables yields
> >
> > different voltages ( 2.02V and 2.02V),
> >
> > a difference of inf% and inf%, respectively.
> >
> >
> >
> > An engineer at the device manufacturer said there are no errors when he
> > uses the ibischk4 v4.0.2 tool. Can someone explain what the differences
> > are between versions 4.0.1 and 4.0.2 of the ibischk4 tool and does
> > anyone know whether Synopsys will be moving to the latest ibischk4 tool
> > in the Hspice simulator?
> >
> > Thanks and regards,
> >
> >
> >
> > Fabrizio Zanella
> >
> > Signal Integrity
> >
> > Enterasys Networks
> >
> > Andover, MA
> >
> > Phone: 978-684-1340
> >
> > fzanella@enterasys.com <mailto:fzanella@enterasys.com>
> >
> >
> >
>
> --
> Bob Ross
> Teraspeed Consulting Group LLC Teraspeed Labs
> 121 North River Drive 13610 SW Harness Lane
> Narragansett, RI 02882 Beaverton, OR 97008
> 503-750-6481 503-430-1065
> http://www.teraspeed.com 503-246-8048 Direct
> bob@teraspeed.com
>
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Received on Mon Dec 20 21:42:44 2004