An FPGA-based on-orbit reconfiguration system and method for a satellite mission computer

A technology of star service computer and reconstruction system, applied in the fields of aerospace and electronic science, to achieve the effects of low power consumption, flexible use, and flexible I/O distribution

Inactive Publication Date: 2017-12-22
SHANGHAI ENG CENT FOR MICROSATELLITES
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Usually, the JTAG configuration port of the flash FPGA can be connected to a computer and reconfigured through the development platform software. However, once the satellite is launched, the FPGA cannot be configured using the JTAG port again.

Method used

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  • An FPGA-based on-orbit reconfiguration system and method for a satellite mission computer
  • An FPGA-based on-orbit reconfiguration system and method for a satellite mission computer
  • An FPGA-based on-orbit reconfiguration system and method for a satellite mission computer

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Embodiment Construction

[0036] The specific implementation of the on-orbit reconfiguration system and method of the FPGA-based satellite mission computer provided by the present invention will be described in detail below in conjunction with the accompanying drawings.

[0037] Firstly, the embodiment of the FPGA-based on-orbit reconstruction system for satellite mission computer of the present invention is given in conjunction with the accompanying drawings.

[0038] see figure 1, the architecture diagram of the on-orbit reconfiguration system of the FPGA-based satellite mission computer of the present invention. The on-orbit reconfiguration system of the mission computer includes a mission FPGA chip 12, a control FPGA chip 14 and an SPI flash memory unit. The mission FPGA chip 12 is used to realize mission functions and integrates a CPU core inside. The control FPGA chip 14 is used to receive the configuration file required for on-orbit reconstruction uploaded by a communication module 11 of the s...

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Abstract

An FPGA-based on-orbit reconfiguration system for a satellite computer, including a star FPGA chip with an internal CPU core; a control FPGA chip for receiving the required configuration for on-orbit reconfiguration uploaded by a communication module of the satellite The files are transferred to a SPI flash memory unit, and the on-orbit reconstruction of the Starworks FPGA chip is controlled; the SPI flash memory unit is used to store the configuration files required for on-orbit reconstruction; among them, the JTAG configuration mode is running to realize the on-orbit When reconfiguring, the control FPGA chip reads the configuration file required for the JTAG configuration mode from the SPI flash memory unit, and sends the configuration data to the star service FPGA chip; when running the SPI configuration mode to realize on-orbit reconstruction, the control FPGA chip notifies the star The service FPGA chip starts the SPI configuration mode, and the star service FPGA chip reads the configuration file required for the SPI configuration mode from the SPI flash memory unit.

Description

technical field [0001] The invention relates to the fields of aerospace and electronic science and technology, in particular, an on-orbit reconstruction system and method for a micro-nano-satellite mission computer based on a Flash-type FPGA. Background technique [0002] With the rapid development of aerospace and electronic science and technology, low-cost, low-weight, high-functional-density micro-nano satellite technology has become a hot topic in the aerospace field. Micro-nano satellites have been widely used in many fields such as earth observation, electronic reconnaissance, communication, navigation, space science detection, space detection and new technology experiments, and have become an important part of space technology. [0003] The on-board computer (OBC) of the micro-nano satellite usually uses a single-chip microcomputer based on a central processing unit chip (CPU) combined with certain peripheral circuits to realize real-time on-board data processing (OBD...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F9/445
Inventor 陈雯雯吴树范陈雯李昭康宝鹏
Owner SHANGHAI ENG CENT FOR MICROSATELLITES
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