基于FPGA的动态可重配置方法研究

摘要

Researching the application of FPGA, we find the internal place and route become more and more complicated with the increment of the gate circuit in the FPGA. But the utilisation rate of single chip is reduced by the enlargement of system size. So we start to pay attention to TDM (Time Division Multiplexer) . Dynamic reconfiguring the logic resource in FPGA is to improve the utilization rate. This paper introduces some basic concepts and classification of reconfigurable technology, then presents four FPGA -based dynamic reconfiguration methods in detail and makes some discuss on the key techniques and developing trends.%对FPGA应用的研究发现,随着FPGA门电路总数的增加,其内部布线的数目和复杂度随之增加,但是随着系统规模的增大,单芯片资源的利用率反而下降.在这种背景下,人们开始把注意力转移到FPGA逻辑资源的时分复用上来,对FPGA的逻辑资源进行动态重配置,以提高FPGA芯片的利用率.在对重配置技术的基本概念以及特征分类进行概要介绍的基础上,较为详细地介绍了四种基于FPGA的动态重配置方法,并针对重配置关键技术和发展趋势进行了探讨.