关键词: 安全启动, 位翻转, 冗余备份, 多重引导

Abstract: This paper describes the multi-boot function of Xilinx FPGA, the loading verification mechanism of bootloader and the three-backup error correction mechanism. The paper also designs and implements a method of FPGA safe startup and configuration file error correction, which reduces the startup failure rate caused by configuration file data error of FPGA. The experimental results show that FPGA can not only start from different backup programs in NOR FLASH, but also diagnose the specific location of the data error in NOR FLASH in time, and can repair the error data.

Key words: secure boot, bit-flipping, redundant backup, multiboot