新型可容错FPGA

A Novel Fault-Tolerant FPGA

SRAM型FPGA具有设计周期短、开发成本低和可重配置等特性,在大型电子系统设计中应用广泛。伴随SRAM型FPGA在重要领域的深入应用,对其可靠性提出了更高要求。在深入剖析FPGA内部结构的基础上,对SRAM型FPGA的故障类型进行了总结。针对SRAM单元软错误造成的FPGA芯片错误,提出了一种嵌入高可靠CPU和配置存储器,通过重构技术实现在线可修复的新型可容错FPGA结构。

SRAM- based FPGAs,with the characteristics of short design period,low development cost,etc,are applied extensive to the large electronics system. Accompany with a FPGA＇s deep application in important field,higher request is brought for its reliability. Based on analysis to FPGA inner part structure,the failure type of SRAM- based FPGAs is concluded. Aiming at FPGA chip failure brought by SRAM cell soft error,a novel fault- tolerant FPGA architecture,embedding a high- reliable CPU and configuration memory,which can perform in- system self- repair through reconfiguration technology.