The dynamic dataflow domain (DDF) will do what you want... Edward Lee >From: David Trainor <[EMAIL PROTECTED]> >Subject: Ptolemy domain question >Date: Mon, 18 Sep 2000 09:38:23 +0100 > >Hello, > > As a newbie to the entire concept of ptolemy, I apologize in advance >if this query is covered in the Ptolemy literature or FAQs. Basically, >I'm trying to understand the system modelling and operation scheduling >mechanisms used in the various Ptolemy domains (SDF, DDE, etc). I'm >trying to model signal processing systems, which most naturally fall >into the SDF domain, but I have some functions like resampling filters >which interpolate/decimate by irrational ratios. For these functions, >the number of tokens produced for each firing of the function is not >completely fixed but has some small variation. Do such stars exist in >Ptolemy and if so what processing domain would they be classified under? > >Are there extensions to SDF processing that would allow such stars to be > >included? > >Any insight into this issue would be greatly appreciated. > >David Trainor > >- -- > > > >- ----------------------------------------------------------------- >David Trainor mailto:[EMAIL PROTECTED] >Principal Engineer >Integrated Silicon Systems Ltd. Tel: +44 28 90 50 4000 >50 Malone Road Fax: +44 28 90 50 4001 >Belfast BT9 5BS Web: www.iss-dsp.com > > >- ----------------------------------------------------------------- > > > >------- End of Forwarded Message > > >_______________________________________________ >Ptolemy maillist - [EMAIL PROTECTED] >http://www.gigascale.org/ptolemy/listinfo/ptolemy ------------ Edward A. Lee, Professor, EECS Dept., Cory Hall UC Berkeley, Berkeley, CA 94720 phone: 510-642-0455, fax: 510-642-2739 [EMAIL PROTECTED], http://ptolemy.eecs.berkeley.edu/~eal ---------------------------------------------------------------------------- Posted to the ptolemy-hackers mailing list. Please send administrative mail for this list to: [EMAIL PROTECTED]
