At 03:20 PM 5/1/2006, Ben Denckla wrote:
In looking at the "SigmaDelta" demo, I was a bit surprised to see
the top level director as DE not SDF. So, I attempted to convert
the model to use SDF at the top, and this appears to be
non-trivial. Is this possible, or should CT always be embedded in
discrete time by representing discrete time in the DE domain? (Or
possibly the DT domain?)
Until recently, SDF was entirely untimed, so if the SDFDirector
is the top-level director, time would never progress beyond zero.
We have recently added a "period" parameter to SDF, which specifies
a time increment for each iteration of the schedule. In theory, this
should make it possible to put CT inside SDF, but I have not tried
it, and I don't think we have any tests...
I've cc'd Haiyang Zheng, who could perhaps try it out and report
back (and add tests?).
Edward
------------
Edward A. Lee
Professor, Chair of the EE Division, Associate Chair of EECS
231 Cory Hall, UC Berkeley, Berkeley, CA 94720-1770
phone: 510-642-0253 or 510-642-0455, fax: 510-642-2845
[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]
