HW/SW Co-Design for Embedded System Based on DDF

Embedded systems are targeted for specific applications under constraints on relative timing of their actions. In this paper, we proposed a co-synthesis approach to hardware/software (HW/SW) co-design for embedded system based on Dynamic Data Flow (DDF). Firstly, we introduced the theory of DDF and presented a methodology of designing embedded system on system-level that depends on decomposing DDF graph into sub-graphs. Furthermore, we then extend DDF by analyzing C language program structure in detail. Finally, we designed an embedded monitoring prototyping system based on FPGAs with HW/SW co-design approach. Our experience is verified that the HW/SW co-design for embedded system based on DDF is effective.