A high reliability design for space-borne large-scale SRAM-based FPGAs with low requirement of memory space

摘要

As FPGA is increasingly used by satellitic navigation receivers and many other space-based electronic devices, the influence on SRAM-based FPGA which caused by the robust ability of single event upsets (SEU) has become one of the most important topics for exploiting space-based equipments. Traditional online reconfigure system of SRAM-based FPGA needs both of original bit stream file and mask file, and therefore the memory space is doubled. Focus on this problem, this paper proposed a self-hosting configure management system for SRAM-based FPGA, which is based on compression algorithm. A compress and relevant decompress strategy is used to make full use of PROMs' resources. The double-channel-reload method is used to improve the reliability of the SRAM-based FPGA in space radiation environment. Results of simulation show that, this design can effectively cure the influence from SEU and costs less hardware room.