FPGA on-orbit dynamic reconfigurable method

Abstract

The invention discloses an FPGA (Field Programmable Gate Array) on-orbit dynamic reconfigurable method. Through hardware triple modular redundancy and software triple modular comparison, the reliability of satellite-borne signal processing FPGA configuration is improved. Erasing, writing and reading instructions are sent to the satellite configuration FPGA through the ground, erasing, writing andreading operations of the satellite-borne configuration data storage FLASH chip are achieved, and therefore dynamic reconstruction of the satellite-borne signal processing FPGA is achieved. On-orbit updating or upgrading of a payload function can be realized through dynamic reconstruction of the satellite-borne signal processing FPGA, repeated development of hardware is reduced, and manpower, material resources and financial resources are saved.

Description

technical field [0001] The invention relates to an FPGA on-orbit dynamic reconfigurable method, which belongs to the field of spacecraft payload design. Background technique [0002] The configuration files of the traditional on-board signal processing FPGA are stored in the anti-fuse PROM, which has a one-time programming feature, that is, after the on-board device is in orbit, its functions cannot be updated, and when the PROM fails, the signal processing FPGA cannot be restored. Features. With the increase in the number of orbiting spacecraft and the increasingly complex space environment, higher requirements are placed on the reliability of spaceborne equipment. Based on the above considerations, the demand for FPGA on-orbit dynamic reconfiguration is imminent and has important national strategic significance. [0003] In order to save hardware costs, it is hoped that the satellite's on-orbit function maintenance, expansion or update can be realized through software up...

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Problems solved by technology

There is currently no FPGA in-orbit dynamic reconfigurable application

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