Re: [IBIS] Question about ibschk, [IBIS Ver], is it a bug?

Hi Gerald:

The IBIS specification and the ibischk parser are both documents
and tools that continually evolve.  We have decided to officially
stabilize and standardize IBIS on just the last major version
documents (e.g., 1.1, 2.1, 3.2, 4.2).  We are NOT interested in
maintaining any subversion distinctions (e.g., for 1.0, 2.0, 3.0, 3.1,
4.0, 4.1) since they might contain flaws or limitations that
are fixed in the stabilized versions.

So, all older sub-versions should be treated as if they are
designated by the latest major version.   In your case 4.1 is
treated as a 4.2 file, and ibischk4, Version 4.2.2 provides the
latest offical test.

We did decide to increase the file name limit from 20 to 40
characters in Version 4.2 of IBIS.  So, while you are correct
that ibischk4, Version 4.1.Y and below will detect this difference,
we now treat the 40 character limit as valid in all 4.0 and
4.1 files, and officially part of the IBIS Version 4 standard
approved by ANSI/EIA.

So we purposely want to eliminate sub-version distinctions to
provide a better document, to provide a better checking
tool, and to encourage common industrial migration to the
lastest major versions of IBIS and ibischkX.

Bob

Gerald Krasemann wrote:
> Hello,
>  
> I have used the lasted version ibschk4.2.2 for checking a model which 
> has the ibs version 4.1. (hp version)
>  
> The checker reports:
> IBISCHK4 V4.2.2
> Checking saf356xhv-v1xxx.ibs for IBIS 4.2 Compatibility...
> For me it's a bug, due to the checker will check the model in the wrong 
> version mode. You can also see, that the checker don't complain about 
> the to long filemane.
>  
> Only, when I go back to ibschk4.1, it will check in the right manner.
>  
>  
> It happens the same, when you're checking model of version 3.0 or 3.1. 
> In this case the checker will always check as 3.2.
> Or 2.0 -> checking as 2.1.
>  
>  
> Is it a bug or how should I handle this?
>  
>  
> best regards
>  
> Gerald Krasemann
>  
>  
> --------------------------------------------------------------------------------------------------------------
> Gerald Krasemann                                               
>  
> Development Engineer, Digital Development/ Integration
> BL Car Entertainment Solutions
>  
> NXP Semiconductors Germany GmbH
> A Company of the NXP Semiconductors Group
> Georg-Heyken-Str. 1, 21147 Hamburg, Germany               
> Tel: ?49 40 5613 1720  Fax: ?49 40 5613 3392
> Gerald.Krasemann_ f rom _nxp.com  www.nxp.com <http://www.nxp.com/>
> --------------------------------------------------------------------------------------------------------------
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-- 
Bob Ross
Teraspeed Consulting Group LLC     Teraspeed Labs
121 North River Drive              13610 SW Harness Lane
Narragansett, RI 02882             Beaverton, OR 97008
401-284-1827                       503-430-1065
http://www.teraspeed.com           503-246-8048 Direct
bob@teraspeed.com

Teraspeed is a registered service mark of Teraspeed Consulting Group LLC


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