Virtex-4系列FPGA纠正单粒子翻转的方法研究

Virtex-4系列FPGA空间应用中易发生单粒子翻转事件，对设备正常功能的完成带来不良影响。文章给出了单粒子翻转的原理。为解决FPGA单粒子翻转问题，结合工程实践对FPGA抗单粒子3种方法进行了分析和比对，提出了“配置存储区回读CRC结果比对”为最优方法，并给出了示例。同时文章也对FPGA回读及擦洗配置命令序列等关键技术进行了研究。

Research on correcting single-event upsets in virtex-4 platform FPGA

In space applications, logic state of static memory element are easily altered by single event upsets （SEU） in Xilinx Inc. Virtex-4 Platform FPGA, which is disadvantage effect on the expected functionality. The theory of SEU is intro- duced in this paper. Based on engineering practice, the optimize method of configuration memory and contrast read back CRC results is proposed after analyzing three anti-SEU methods, and some examples are given. At the same time, some key technologies of read back and scrubbing configuration order list are studied.