Xilinx FPGA 抗辐射设计技术研究.pdf

文档介绍：电子技术研发 Electronics R & D
Xilinx FPGA抗辐射设计技术研究
薛利军段晓峰刘学斌卫俊霞石兴春
(中国科学院西安光学精密机械研究所)
摘要:针对Xilinx FPGA在航天应用中的可行性,文章分析了Xilinx FPGA的结构以及空间辐射效应对FPGA的影
响,结合实际工程实践给出了提高其可靠性的一些有用办法和注意事项,如冗余设计、同步设计、自检等。表明配置
信息的周期刷新和三模冗余设计是减轻单粒子效应的有效方法。
关键词:可编程逻辑门阵列;总剂量效应;单粒子翻转;单粒子闩锁;单粒子功能中断;单粒子烧毁;单粒子瞬
态脉冲
Radiation Hardness Research on Xilinx FPGA
Xue Lijun Duan Xiaofeng Liu Xuebin Wei Junxia Shi Xingchun
(Xi’an Institute of Optics and Precision Mechanics, the Chinese Academy of Science)
Abstract: For the application possibility of Xilinx FPGA in aerospace field, this paper analyzes the structure of Xilinx
FPGA and the impact of space radiation on FPGA, proposes some useful ways and points for attention to improve its reliability
on the basis of engineering practice, such as redundancy design, synchronization design, self-check, etc. The periodic refreshing
to express installing information and the design with three mold redundancies are the effective methods that reduce a series of
single event effects.
Key words: FPGA; total ionizing dose; single event upset; single event latch-up; single event functional interrupt; single
event burnout; single event transient
0 引言配置存储器和受其控制的可配置逻辑资源两层的叠加。
空间辐射环境中的带电粒子会导致航天器电子系统配置存储器是FPGA内部的一个大容量存储器,控制着可
的半导体器件发生单粒子效应,严重影响航天器的可靠配置逻辑资源,如布线资源、可编程逻辑资源、数字时
性和寿命,其中高能质子和重离子是导致单粒子效应的钟等逻辑功能。配置存储器的失效将造成FPGA功能的持
主要因素。必须对航天器用电子元器件的单粒子效应进久失效(直至