From: Todd Westerhoff (email@example.com)
Date: Wed May 09 2001 - 13:33:21 PDT
I'd check the test load conditions specified in the driver buffer model to
make sure nothing wacky is going on. If you've got standard load conditions
that would cause a simulation to fail, it would explain why on-the-fly
simulations fail (as they build a separate circuit to measure the buffer
delay), while library simulations would succeed.
5 Federal Street
Billerica, MA 01821
[mailto:firstname.lastname@example.org]On Behalf Of Greim, Michael
Sent: Wednesday, May 09, 2001 3:32 PM
Cc: Greim, Michael
Subject: [SI-LIST] : specctraquest waveform sims fail with design link and
buffer delays on the fly......
I am seeing something odd in specctraquest 13.6 and wanted to
solicit your opinion to see if this is a feature of the tool or
perhaps something else is going on. Simply put, any time
that I try a waveform simulation that includes a design link
and calculates buffer delays on the fly, the simulation fails
at all three speeds. If I run the sim using delays from the library,
the simulation passes and when I calculate buffer delays in
the model editor that passes as well. In both cases I am in
clined to believe the results.
Michael C. Greim Sonus Networks
Making the world safe for digital signals everywhere
And all this science I don't understand
It's just my job six days a week
The time is gone. The email's over
Thought I'd something more to say......
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