A low-cost and high-reliability satellite-borne single-machine multi-chip SRAM type FPGA on-orbit reconstruction system and method

The invention discloses a low-cost and high-reliability satellite-borne single-machine multi-chip SRAM type FPGA on-orbit reconstruction system. One chip is selected from a plurality of to-be-reconstructed FPGAs as a reconstruction interface FPGA, and an external reconstruction interface circuit is constructed in the reconstruction interface FPGA; The external reconfiguration interface circuit isused for receiving reconfiguration user function configuration data and a reconfiguration instruction which are injected on the ground, generating a reconfiguration telemetry data packet from the received reconfiguration user function configuration data and the received reconfiguration instruction, sending the reconfiguration telemetry data packet to the on-orbit reconfiguration control circuit, and downloading reconfiguration telemetry information on a satellite to the ground; The reconfiguration interface configuration data memory PROM is used for storing reconfiguration interface function configuration data of the reconfiguration interface FPGA; Wherein different spaces are set in the FLASH and correspond to the FPGAs to be reconstructed respectively, and the FLASH is used for pre-storing original user function configuration data of the FPGAs to be reconstructed or storing reconstructed user function configuration data used during on-orbit reconstruction; The on-orbit reconstructioncontrol circuit is responsible for communication with the reconstruction interface circuit, storage of reconstruction configuration data and loading and refreshing of the FPGA to be reconstructed according to control of a ground remote control instruction.