RE: [IBIS] RE: [IBIS-Users] IBISCHK4 parser updated; IBIS 4.2 now an ANSI specification

From: Mike LaBonte \(milabont\) <milabont_at_.....>
Date: Fri Apr 27 2007 - 09:34:38 PDT
I am a bit surprised by the lack of line numbers in the 4.2.1 version output:

==> Example_of_IBISCHK4_V4.1.1_Report.txt <==
IBISCHK4 V4.1.1

Checking hyb18t512xx0bf_rev18.ibs for IBIS 3.2 Compatibility...

WARNING (line  921) - Pulldown Maximum data is non-monotonic
WARNING (line  922) - Pulldown Typical data is non-monotonic
WARNING (line  924) - Pulldown Minimum data is non-monotonic
WARNING (line  983) - Pullup Maximum data is non-monotonic
WARNING (line  984) - Pullup Typical data is non-monotonic
WARNING (line  985) - Pullup Minimum data is non-monotonic

==> Example_of_IBISCHK4_V4.2.1_Report.txt <==
IBISCHK4 V4.2.1

Checking hyb18t512xx0bf_rev18.ibs for IBIS 3.2 Compatibility...

NOTE - Pulldown for Model: INOUT_WEAK Typical data is non-monotonic
NOTE - Pullup for Model: INOUT_WEAK Typical data is non-monotonic
NOTE - Pulldown for Model: INOUT_WEAK Minimum data is non-monotonic
NOTE - Pullup for Model: INOUT_WEAK Minimum data is non-monotonic
NOTE - Pulldown for Model: INOUT_WEAK Maximum data is non-monotonic
NOTE - Pullup for Model: INOUT_WEAK Maximum data is non-monotonic


The new format may be more useful in some ways, but the old format identified the exact point where non-monotonicity begins. Also I find nothing in the parser bug list indicating this would change. In fact, BUG 94 says:

"The reason for retaining the individual I/V curve checks is that they can be useful for diagnosing the source of the combined non-monotonicity, and these checks print the line number in the file."

Was there any discussion of this change that I missed?

Mike

-----Original Message-----
From: owner-ibis@eda.org [mailto:owner-ibis@eda.org] On Behalf Of Radovan.Vuletic@qimonda.com
Sent: Wednesday, April 25, 2007 6:56 AM
To: michael.mirmak@intel.com; ibis@eda-stds.org; ibis-users@eda-stds.org
Subject: [IBIS] RE: [IBIS-Users] IBISCHK4 parser updated; IBIS 4.2 now an ANSI specification

Hi experts,

is it possible that there is a bug in this latest IBISCHK4 (v4.2.1) version? 

I am checking one IBIS model and then I get a whole bunch of warnings that I can't explain, like:
"WARNING - Pin B1 is not defined as a Diff Pin though the associated Model Selector INOUT was determined to be Differential"

When is one pin considered to be differential? I assume only in [Diff Pin] section, but now it seems that it is looking for something else .... and I don't know what ....

With old version of IBISCHK4 (v4.1.1) I get no such funny warnings.

For your convenience I have attached the outputs of both spelling checkers (parsers).

Regards,
Radovan


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-----Original Message-----
From: owner-ibis-users@server.eda.org [mailto:owner-ibis-users@server.eda.org] On Behalf Of Mirmak, Michael
Sent: Sunday, April 22, 2007 7:53 AM
To: ibis@server.eda-stds.org; ibis-users@server.eda-stds.org
Subject: [IBIS-Users] IBISCHK4 parser updated; IBIS 4.2 now an ANSI specification


The IBIS Open Forum is pleased to announce that the IBISCHK4 parser, version 4.2.1, is on-line and available for download!  Compiled executables for Linux (SuSE), Microsoft DOS/Windows and Sun operating systems can be found at: 
  
 http://www.eda.org/pub/ibis/ibischk4/
  
Additional compilations will be posted as they become available.  Parser license purchasers will receive the source code shortly.

Note that this version addresses all known parser bugs and implements the new "Caution" flag.
  
Parser issues may be reported using the "bugform.txt" template at: 

 http://www.eda.org/pub/ibis/bugs/ibis_bugs/

Please send completed issue reports to ibis-bug@eda.org. 

In addition, we have received confirmation that, with the close of the comment period, IBIS 4.2 is now an official ANSI specification, as of March 9, 2007!  Its official designation is ANSI/EIA-656-B.

Thanks to our contributors, members and users for their support!

- Michael Mirmak
  Intel Corp. 
  Chair, EIA IBIS Open Forum  

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Received on Fri Apr 27 09:35:00 2007

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