[IBIS-Users] RE: IBIS models enquiry

Hello Mei Yee,

Which version of s2ibis are you using? s2ibis2 OR s2ibis3? If you are using
s2ibis2, please download s2ibis3 from the link Michael mentioned before. If
you are using s2ibis3, please attach the log file (s2ibis3.log) that is
created at the end of the s2ibis3 run.

Thanks,

Ambrish. 

 

--Ambrish Varma

North Carolina State University

ph(919)513-2015, fax(919)515-2285

  _____  

From: NG,MEI-YEE [mailto:mei-yee.ng@avagotech.com] 
Sent: Thursday, October 05, 2006 8:42 PM
To: Mirmak, Michael; ibis-users@eda.org; ibis-info@eda.org; akvarma@ncsu.edu
Subject: RE: IBIS models enquiry

 

Dear Michael,

 

I am using s2ibis to point to my own model file, but it always gives me a
syntax error with "unknown parameter name" whereas I have already defined
them in my model file using 'parameters' keyword. For example:

 

Parameters\

RCASE_MIN=0\

RCASE_NOM=1\

RCASE_MAX=0

 

But looking through the pct.msg file, it prompts syntax error. I don't
understand. Is there anything wrong with the way I defined the parameters?
How come the parameters just can't seem to be taken into account?

 

Looking forward to your reply.

 

Thanks.

 

Best regards,

Mei Yee

 

  _____  

From: Mirmak, Michael [mailto:michael.mirmak@intel.com] 
Sent: Friday, October 06, 2006 12:35 AM
To: NG,MEI-YEE; ibis-users@server.eda.org; ibis-info@server.eda.org;
akvarma@ncsu.edu
Subject: RE: IBIS models enquiry

 

Mei Yee,

 

S2IBIS has been updated considerably since S2IBIS2  You may wish to visit
the website for S2IBIS3:
http://www.ece.ncsu.edu/erl/ibis/s2ibis3/s2ibis3.htm

 

- Michael Mirmak

  Intel Corp.

  Chair, EIA IBIS Open Forum

 

  _____  

From: owner-ibis-info@server.eda.org [mailto:owner-ibis-info@server.eda.org]
On Behalf Of NG,MEI-YEE
Sent: Thursday, October 05, 2006 01:48
To: ibis-users@server.eda.org; ibis-info@server.eda.org; akvarma@ncsu.edu
Subject: RE: IBIS models enquiry

Dear Sir/Madam,

 

I have replaced the examples' spectre.mod file so that it will point to my
own .scs model file. Right now, my own spectre.mod file only has one line : 

include "/usr/../../../ag100_mos.scs" section=nom

 

However, when I run the s2ibis software, it does not seem to recognize the
model file and keeps on giving error that my component is of undefined
model.

 

Kindly advice.

 

Thank you.

 

Best regards,

Mei Yee

 

  _____  

From: NG,MEI-YEE 
Sent: Wednesday, October 04, 2006 3:22 PM
To: 'ibis-users@eda.org'; 'ibis-info@eda.org'
Subject: IBIS models enquiry

 

Dear Sir/Madam,

 

I am an analog IC design engineer currently learning how to generate IBIS
models for my circuit. I have downloaded s2ibis2 v1.1 and tried running some
examples from there. However, there are some questions that I would like to
be clarified:

 

1)       I'm using a spectre simulator and my circuit and model files are
also meant for spectre language. I noticed that the command input file
(.s2i) takes in a spice (.sp) file, which is rather similar to the spectre
netlist. Is it possible to run the software using my spectre netlist as
input? Or do I need to generate a spice-compatible netlist file?

2)       I also have my own model files (.scs). Can I replace the example's
spectre.mod with my own model file and change the extension to .mod? 

3)       The s2ibis2 software helps me to run all the necessary simulations
and convert them to ibis format automatically. Is there any other method
where I can use my own simulation output and convert them into ibis format?
i.e. is there any converter which takes in simulation output data and
converts them into ibis file?

 

I hope that my questions are not confusing. Your feedback and assistance are
highly appreciated.

 

Thank you very much in advance.

 

Best regards,

Mei Yee 

IC Design Engineer

Avago Technologies



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