Refresh self-adaptive continuous high-reliability on-orbit FPGA reconstruction system and method

Abstract

The invention relates to a refresh self-adaptive continuous high-reliability on-orbit FPGA reconstruction system and a refresh self-adaptive continuous high-reliability on-orbit FPGA reconstruction method. The system comprises an SRAM type FPGA unit which is used for receiving a ground control instruction and reconstructing configuration data, a read-only storage unit which is used for storing theoriginal configuration data corresponding to the SRAM type FPGA unit. a programmable storage unit which is used for storing the reconstruction configuration data, a high-reliability management and control unit which is used for automatically selecting a guide source to guide the SRAM type FPGA and refreshing the SRAM type FPGA when the high-reliability management and control unit is powered on, and when a ground control instruction is received, selecting the corresponding configuration data to carry out FPGA guidance, or carrying out FPGA reconstruction according to the reconstruction configuration data obtained from the SRAM type FPGA. According to the system, a reliable hardware architecture is provided for FPGA on-orbit reconstruction, bug repairing and function adding through programupdating are supported, the system problem caused by the fact that the FPGA reconstruction process is successful but bugs exist in updating software is avoided, and the reliability, effectiveness andflexibility of systems such as satellites can be improved.

Description

technical field [0001] The present application relates to the field of spaceflight on-orbit system reconfiguration and reliability technology, in particular to a refresh-adaptive continuous high-reliability on-orbit FPGA reconfiguration system and method. Background technique [0002] With the rapid construction of space-based application systems such as satellite communications, satellite earth observation, and global satellite navigation and positioning in my country, as well as the vigorous development of commercial aerospace, various large-scale constellation plans have been proposed one after another, and the functions and complexity of satellite projects have increased significantly. In order to improve the reliability, effectiveness and flexibility of the satellite system, the satellite platform and its payload software are developing towards the trend of on-orbit reusability, portability, dynamic loading and maintainability. [0003] At present, many in-orbit satelli...

AI Technical Summary

Problems solved by technology

However, when single event effects occur on its FPGA or configured memory chips, mainly including single event upset SEU, single event function interruption SEFI, single event transient pulse SET, etc., its software on-orbit reconfiguration process is prone to failure, which in turn causes system failures. task interruption

In addition, these in-orbit satellites cannot repair the loopholes in the software itself, so FPGA reconfiguration cannot solve the system problems caused by the successful reconfiguration of the software but the loopholes in the software itself

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