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Simulators >> Circuit Simulators >> Error in Spectre simulation
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Message started by Ankush Goel on Sep 15^th, 2005, 11:54am

Title: Error in Spectre simulation
Post by Ankush Goel on Sep 15^th, 2005, 11:54am

Hi All,

I ran the following command for a circuit simulation...

spectre +cp -env artist5.0.0 +log ../psf/spectre.out -format psfbin -raw ../psf -I/home/ankush/tech_file/IBM_PDK/bicmos7wl/V1.3.1.0DM/Spectre/models/ input.scs

The following was the error message I got:

Error found by spectre during circuit read-in.
".bsource.va", line 13: "parameter real useii=0.0, pavc1=0.0, ppc=0.0,
prhot=0.0, pavc3=0.0, temp=0.0, dtemp=0.0;<<--? "
".bsource.va", line 13: Error: real temp is redefined.
spectre terminated prematurely due to fatal error.

I am not able to locate the file bsource.va. Can anybody tell me where to find the path for the file.

Thanks,
Ankush

Title: Re: Error in Spectre simulation
Post by Paul on Sep 15^th, 2005, 12:59pm

Ankush,

according to the error message, the filename is .bsource.va
The leading "." means it is a hidden file in the Unix/Linux file system, i.e. it does not appear using ls. The option -la to the ls command however shows hidden files.

I don't have access to Cadence right now, but it seems this should be related to the use of the bsource component for nonlinear resistors. http://groups.google.ch/group/comp.cad.cadence/browse_thread/thread/ffbcdeb689077001/432af310e5ede6a5?
You can get more information by typing "spectre -h bsource", but I'm not sure that your problem is directly related to the bsource code. Probably Andrew will be able to help you out here...

Paul

Title: Re: Error in Spectre simulation
Post by Geoffrey_Coram on Sep 19^th, 2005, 6:29am

I'll hazard a guess that ".bsource.va" is a Verilog-A description of a (customized?) bsource element provided in the IBM design kit.

find /home/ankush/tech_file/IBM_PDK -name ".bsource.va"

Title: Re: Error in Spectre simulation
Post by Andrew Beckett on Sep 19^th, 2005, 9:09pm

Apologies for not responding sooner - I've been travelling a lot the last couple of weeks.

From looking at this I would have guessed that you were using an old version of the simulator - probably from the very early days of bsource support in spectre (possibly from when it was only an engineering version).

I see that you logged a service request, 33349726, with customer support - and they came to the same conclusion - the version you're using is from May 2003 - which was before bsource was fully released. That happend in IC5033, and as was found by the AE, this works in IC5033 versions and later.

Regards,

Andrew.