Modeling DSP applications through coarse-grain dataflow graphs is popular in the DSP design community, and a growing set of rapid prototyping tools support such dataflow semantics. Since different tools may be suitable for different phases or generations of a design, it is often desirable to migrate a dataflow-based application model from one prototyping tool to another. Two critical problems in transferring dataflow-based designs across different prototyping tools are the lack of a vendor-independent language for DSP-oriented dataflow graphs, and the lack of an efficient porting methodology. In our previous work, the dataflow interchange format (DIF) [5] has been developed as a standard language to specify mixed-grain dataflow models for DSP systems. This paper presents the augmentation of the DIF infrastructure with a systematic porting approach that integrates DIF tightly with the specific exporting and importing mechanisms that interface DIF to specific DSP design tools. In conjun...
Chia-Jui Hsu, Shuvra S. Bhattacharyya