A fault detection and repair method for on-orbit sram type fpga based on configuration frame

Abstract

The invention relates to an on-rail SRAM type FPGA fault detection and repair method based on a configuration frame, which is realized by a fault detection and repair system. The fault detection and repair system includes a main processing module, a configuration frame readback module, a fault detection module and a configuration frame Error correction and recovery module, the present invention implements frame-by-frame readback, verification and writeback or rewrite of the internal configuration information of SRAM FPGA through the fault detection and repair system implemented on the highly reliable chip, and realizes configuration information frame The level of fault detection and repair greatly improves the detection rate and repair ability of the configuration information flip problem caused by the single event effect of the space environment. A general reliability design approach supported by software.

Description

technical field [0001] The invention relates to an on-orbit SRAM type FPGA fault detection and repair method based on a configuration frame, and belongs to the technical field of satellite control systems. Background technique [0002] With the development of the aerospace industry, miniaturization and system integration have become the main trend of satellite development, which requires the electronic components used must have the characteristics of high integration and small size, which makes Field Programmable Gate Array FPGA (Field Programmable Gate Array) ) has become the main device of star electronic products. [0003] In space applications, the most used FPGA is based on the CMOS SRAM process, but when the SRAM FPGA is used in the space environment, space high-energy particles will penetrate the interior of the FPGA device and generate ionization on the path, and the internal circuit nodes will be due to The diffusion and drift of electrons or holes generated by ion...

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Problems solved by technology

[0004] The object of the present invention is to overcome the above-mentioned deficiency of prior art, provide a kind of SRAM type FPGA fault detection and repair method based on configuration frame, this method makes up for the deficiency of SRAM type FPGA space anti-radiation ability, solves the problem of SRAM type FPGA Because the configuration information is too large, it is impossible to quickly and flexibly realize fault detection and repair, etc., providing a general reliability design method for SRAM FPGA with simple implementation, low resource consumption rate, and no software support

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