Publications of the Ptolemy Group
Optimized Software Synthesis for Synchronous Dataflow
Shuvra S. Bhattacharyya, Hitachi America
Praveen K. Murthy, University of California at Berkeley
Edward A. Lee, University of California at Berkeley
Intl. Conf. on Application-specific Systems,
Architectures & Processors, July, 1997, invited paper
This paper reviews a set of techniques for compiling
dataflow-based, graphical programs for embedded signal
processing applications into efficient implementations on
programmable digital signal processors. This is a critical
problem because programmable digital signal processors
have very limited amounts of on-chip memory, and the
speed and power penalties for using off-chip memory are
often prohibitively high for the types of applications, typically
embedded systems, where these processors are used.
Moreover, off-chip memory typically needs to be static,
increasing the system cost considerably.
The compiling techniques described in the paper are
developed for the synchronous dataflow model of computation,
a model that has found widespread use for specify
ing and prototyping DSP systems.
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