Using Spectre expressions (can't find much info from Cadence

[Jay Smith]

Dear all,
I'm trying to exploit using expressions in Analog Enviroment. However,
little info is available from Cadence's document. Say, if I want to
find the range of CLM coefficient, using this simple equation:
lamda=gds/ids
How can I include this in the simulation file? Where can I retrieve
the result data and plot them??
thanks for your help!
Jay

 

[Andrew Beckett]

Hi Jay,

Probably you're best trying to do this in OCEAN - or using the OCEAN functions
in the ADE environment (essentially OCEAN is a set of SKILL functions for
controlling simulations and manipulating results; the functions in the Artist
calculator are (mostly) OCEAN functions). I gave some examples of these
in a previous reply to you - I'd recommend reading the OCEAN manual for more
details.

Regards,

Andrew.

On 13 Apr 2004 23:43:15 -0700, mail9900@yahoo.com (Jay Smith) wrote:

Dear all,
I'm trying to exploit using expressions in Analog Enviroment. However,
little info is available from Cadence's document. Say, if I want to
find the range of CLM coefficient, using this simple equation:
lamda=gds/ids
How can I include this in the simulation file? Where can I retrieve
the result data and plot them??
thanks for your help!
Jay

--
Andrew Beckett
Senior Technical Leader
Custom IC Solutions
Cadence Design Systems Ltd

 

[Jay Smith]

Andrew,
Thanks again for your help. I was trying to find this info from
Spectre User/Refrence manual, but there's little info. I'll read the
OCEAN manual.
BTW, I remembered I saw it somewhere that user can set the output data
format, for examples, the ASCII format can be used instead of the
binary psf format. Do you know where I can do this?
Also, could you reference some manuals/tutorials?
Best regards,
Jay


Andrew Beckett <andrewb@DELETETHISBITcadence.com> wrote in message news:<9dbq7099nn45477956jq5pogtv3t6jo2vg@4ax.com>...

Hi Jay,

Probably you're best trying to do this in OCEAN - or using the OCEAN functions
in the ADE environment (essentially OCEAN is a set of SKILL functions for
controlling simulations and manipulating results; the functions in the Artist
calculator are (mostly) OCEAN functions). I gave some examples of these
in a previous reply to you - I'd recommend reading the OCEAN manual for more
details.

Regards,

Andrew.

On 13 Apr 2004 23:43:15 -0700, mail9900@yahoo.com (Jay Smith) wrote:

Dear all,
I'm trying to exploit using expressions in Analog Enviroment. However,
little info is available from Cadence's document. Say, if I want to
find the range of CLM coefficient, using this simple equation:
lamda=gds/ids
How can I include this in the simulation file? Where can I retrieve
the result data and plot them??
thanks for your help!
Jay

 

[Andrew Beckett]

Hi Jay,

On 14 Apr 2004 11:05:24 -0700, mail9900@yahoo.com (Jay Smith) wrote:

Andrew,
Thanks again for your help. I was trying to find this info from
Spectre User/Refrence manual, but there's little info. I'll read the
OCEAN manual.
BTW, I remembered I saw it somewhere that user can set the output data
format, for examples, the ASCII format can be used instead of the
binary psf format. Do you know where I can do this?

This can be done with a spectre command line option (-format psfascii
for example). It's not available from ADE though - you can only write out
psfbin (and now psfbinf, which is a smaller version which uses single
precision floats).

So it's only really useful for standalone simulations. There's also the "psf"
command that can be used to convert psf binary files to psf ascii and
vice versa.

OCEAN provides a simple programmatic way of accessing results data; if
you go to psfascii you'd need to write your own results parser.

Also, could you reference some manuals/tutorials?

The OCEAN manual, and spectre user guide and spectre reference
under cdsdoc.

Regards,

Andrew.

Best regards,
Jay


Andrew Beckett <andrewb@DELETETHISBITcadence.com> wrote in message news:<9dbq7099nn45477956jq5pogtv3t6jo2vg@4ax.com>...
Hi Jay,

Probably you're best trying to do this in OCEAN - or using the OCEAN functions
in the ADE environment (essentially OCEAN is a set of SKILL functions for
controlling simulations and manipulating results; the functions in the Artist
calculator are (mostly) OCEAN functions). I gave some examples of these
in a previous reply to you - I'd recommend reading the OCEAN manual for more
details.

Regards,

Andrew.

On 13 Apr 2004 23:43:15 -0700, mail9900@yahoo.com (Jay Smith) wrote:

Dear all,
I'm trying to exploit using expressions in Analog Enviroment. However,
little info is available from Cadence's document. Say, if I want to
find the range of CLM coefficient, using this simple equation:
lamda=gds/ids
How can I include this in the simulation file? Where can I retrieve
the result data and plot them??
thanks for your help!
Jay

--
Andrew Beckett
Senior Technical Leader
Custom IC Solutions
Cadence Design Systems Ltd