Design And Implementation Of Remote Dynamic Reconfigurable System Based On FPGA

In the 21st century, FPGA(Field Programmable Gate Array) technology is developing quickly, and has played a key role in some application fields, such as automatic robots, satellite, intelligent home appliance and so on. FPGA dynamic reconfigurable technology combined with Internet can make electronic equipment have the abilities of self-repair and remote real time updating, so that the reliability and safety of the systems can be greatly improved. For this reason, remote dynamic reconfigurable system based on FPGA has been a research hotspot of FPGA field in recent years. With a variety of Mentor's and Xilinx's software tools, this paper researched remote dynamic reconfigurable technology based on FPGA, and accomplished the design and implementation of relative system.Firstly, according to IRL (Internet Reconfigurable Logic) design concept, a remote dynamic reconfigurable system based on FPGA was designed, which has the ability of remote real time updating. Depending on network communication technology, the update files in remote host can be transmitted to this system via ethernet, and reconfigure the system with overall dynamic reconfigurable technology.Secondly, according to two applications of reconfigurable technology, which are function transformation and fault-tolerance, two function modules were designed with HDL language, Cipher and MBIST, to virefy the feasibility of the above-mentioned system scheme. The key of cipher resides in internal bram of FPGA chip, and functions of DES cipher, encryption and decryption, are transformed with partial dynamic reconfigurable technology. BIST circuits are inserted into internal memory of FPGA chip to detect faults. If there is any fault, also with partial dynamic reconfigurable technology, faulty module can be replaced with trouble-free module.Finally, to prove its feasibility and advantages, the system was implemented on XUP Virtex-II Pro hardware platform and tested remote dynamic reconfigurable technology. During the entire process, FPGA system always keeps electrifying, and has achieved the goal of remote real time updating.