[SI-LIST] Re: more on PWL statement generation for PRBS simulation in spice
- From: "Keskinen, Kai" <KaiKeskinen@xxxxxxxxxxxxx>
- To: "'Raymond.Anderson@xxxxxxx'" <Raymond.Anderson@xxxxxxx>,si-list@xxxxxxxxxxxxx
- Date: Fri, 22 Nov 2002 07:49:15 -0500
The same thing can be easily done using the int(rand()+0.5)function in
excel.
Cheers,
Kai Keskinen
Signal Integrity Advisor
Solectron Technical Center
425 Legget Drive,
Kanata, ON K2K 2W2
kaikeskinen@xxxxxxxxxxxxx
www.solectron.com
-----Original Message-----
From: Ray Anderson [mailto:Raymond.Anderson@xxxxxxx]
Sent: Thursday, November 21, 2002 4:00 PM
To: si-list@xxxxxxxxxxxxx
Subject: [SI-LIST] more on PWL statement generation for PRBS simulation
in spice
Follow on to my recent posting on generation PWL PRBS
excitation for spice simulations.
I mentioned that one could take the recently posted Perl
code and modify it to output a PWL statement.
Check the Microsim app note document at:
http://www.pspice.com/upload/appnotes/appnts.pdf
On page 231 of the pdf file a chapter entitled
"Test Analog circuits with Random Digital Data"
begins. On page 233, figure 124 is a simple program
listing in BASIC that allows one to generate a PWL
statement based on random data generated by the BASIC
rand() statement. The logic in that listing could be
ported into the PERL prbs code to create an integrated
program.
-Ray
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