Efficient Design Methodology for Adaptive System Based on Direct Bitstream Evolution

Abstract

An efficient design methodology for adaptive system based on direct configuration bitstream (CB) evolution has been proposed, which models the relationship between resources and CBs of the field programmable gate array (FPGA), and then generates CBs online according to the models built. The system framework and design methodology have been given and verified on Xilinx Virtex-5 FPGA. Results show that it can implement embedded online self-programming of FPGA’s logic and routing resources via modifying CBs directly; and has lower resources overhead, lesser time consumption, and stronger adaptability than the mainstream evolution approaches.