Method and device for repairing single event upset in field programmable logic gate array

Abstract

A method and a device for repairing single event upset in a field programmable logic gate array are disclosed, a high-reliability monitoring unit, which is connected with the field programmable logic gate array and used for realizing the detection and the repair of the single event upset, is set; a read-back process of a configuration memory of the field programmable logic gate array is implemented by the high-reliability monitoring unit in order to read configuration frames of the field programmable logic gate array, and original configuration frames, which are read from a non-volatile memoryvia a standard NVRAM interface, are then implemented by the high-reliability monitoring unit; the high-reliability monitoring unit compares the read-back configuration frames with the original configuration frames by bytes, when comparison error occurs on the configuration frames, it is judged that the single event upset in the configuration memory of the field programmable logic gate array occurs, and the high-reliability monitoring unit executes a repair process to repair the incorrect configuration frames of the field programmable logic gate array. The invention has the advantages of simple structural principal, convenient operation, high reliability and good stability.

Description

technical field [0001] The invention mainly relates to the field of space instrument engineering, in particular to a method and device for repairing single event flipping in field programmable logic gate arrays. Background technique [0002] Cosmic space is full of various particles from the vast universe: protons, electrons, alpha particles, heavy ions, gamma rays, etc. The radiation effects caused by these particles, especially the single event effect, affect the reliability of space electronic instruments. [0003] In recent years, with the development and application of VLSI (Very Large Scale Integrated circuits) technology, Field Programmable Logic Gate Array (FPGA, Field Programmable Gate Array) has gradually replaced traditional logic circuits by virtue of its superior interface performance. It has become an important part of the on-board processing platform and has begun to be applied in aerospace engineering. [0004] With the improvement of the manufacturing proce...

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Problems solved by technology

[0006] At present, in the on-board signal processing platform, on the one hand, high-performance, large-scale, and high-grade FPGA devices are extremely expensive; Due to the large number of on-chip SRAM (Static Random Access Memory) used in low-priced FPGA devices, the probability of single event effects caused by space high-energy particles is greatly increased, which seriously affects the normal operation of FPGA devices in space environments

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