Empirical results on parity-based soft error detection with software-based retry

Local triple modular redundancy (LTMR) is often the first choice to harden a flash-based FPGA application against soft errors in space. In this work, we compare parity-based error detection with software-based retry, and LTMR on a reference architecture regarding maximum frequency, area overhead and processing time. Our results show that our solution based on parity-based error-detection saves from 30 % up to 45 % of the area overhead caused by LTMR.