Hardware Evolution Theory, Method And Realization

Evolvable Hardware (EHW) is a kind of hardware with self-organizable,self-adaptive and self-repairable ability. In this paper,the method of digital evolvable hardware is studied based on the dynamical reconfiguration of Field Programmable Gate Array (FPGA).In the paper,firstly,the basic conception and theory of EHW are roundly introduced and the structure characters of EHW chip are analyzed. Secondly,the thought of standard evolutionary algorithm is discussed and the flow of improved evolutionary algorithms is analyzed. The key technology of EHW realization is emphasized and the realization projects are deeply studied. The paper adopts two methods of extrinsic evolution and intrinsic evolution to evolve the application circuits.Instances are given to test the two evolved methods and the results show that both EHW methods are valid.