一种FPGA智能加载和远程更新的实现方法

摘要

由于FPGA具有掉电易失性,系统每次启动都需要对其进行配置;此外,某些系统在出厂后需要进行升级维护,这就需要对FPGA的配置镜像进行更新.针对这种需求,提出了一种新的FPGA智能加载和远程更新的实现方案.系统在Quartus II的SOPC环境下开发,将Nios II处理器、Mac核、高速收发器及Remote-Update模块集成在FPGA片内,不需要片外的CPU或CPLD配合,FPGA独立、智能地完成镜像的更新和加载.实验证明该方案可行,且系统稳定、可靠.%Due to the volatile nature of FPGA,every time system starts up,it's required to configure FPGA.In addition,some systems needs to be upgraded to improve the system performance usually after leaving the factory,this requires FPGA'image can be updated at any time.In view of this demand,the article puts forward a new method that FPGA has the function of intelligent load and remote update.The system is developed in SOPC environment,and integrates Nios II,mac,transceiver and Remote-Update ipcore in FPGA chip.No processor or CPLD is required outside FPGA,the FPGA loads and updates the image intelligently and independently.Experimental results show that the method is feasible and the system is stable and reliable.