Remote sensing camera fpga configuration program centralized management and note update and dynamic refresh method and circuit

Abstract

The present invention proposes a remote sensing camera FPGA configuration program centralized management, up-note update and dynamic refresh method and circuit, the method includes centralized configuration management, up-note update, dynamic refresh, solidified storage, non-volatile rewritable storage Function, it can configure and refresh the on-board SRAM FPGA of each functional circuit in the entire device. Through centralized management of each SRAM-type FPGA's pre-launch solidified program and above-mentioned storage program, the SRAM-type FPGA with the same function only needs to store one copy of program data, and the refresh data is also extracted from the program storage area to refresh the FPGA. Flexible setting of multi-chip FPGA loading configuration rules at the beginning of power-on, and the loading configuration sequence is determined according to the function priority and master-slave relationship. The definition focuses on the loading method to efficiently utilize the limited bandwidth of the satellite-ground link, flexibly and reliably upload the program, and effectively complete the update and loading of the new algorithm program.

Description

technical field [0001] The invention belongs to the technical field of real-time processing of remote sensing cameras, and proposes a remote sensing camera FPGA configuration program centralized management, up-note update and dynamic refresh method and circuit, which can be used for uploading SRAM-type FPGAs on boards of various functional circuits of on-orbit remote sensing cameras Realization of functions such as power configuration, reload, update and dynamic refresh. Background technique [0002] At present, high-performance SRAM FPGAs are widely used in management control circuits, temperature monitoring and control circuits, focal plane timing control circuits, video signal processing circuits, and image information processing circuits in remote sensing cameras. SRAM-type FPGAs are greatly affected by space radiation, and aerospace-grade FPGAs have low SEU indicators, which can easily cause SEU problems. Additional redundant design technologies such as TMR must be used...

AI Technical Summary

Problems solved by technology

[0003] The technical problem that the present invention solves is: provide a kind of remote sensing camera FPGA configuration program centralized management and up note update and dynamic refresh method, solve the problem of using screened commercial or industrial grade FPGA to ensure FPGA reliability by means of dynamic refresh The problem

The problem of updating and improving the FPGA program of each functional circuit is solved through the star-to-earth link injection method and centralized configuration program management

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