CN118152018A - System and method for reconstructing ZYNQ in-orbit isomerism for satellite - Google Patents

System and method for reconstructing ZYNQ in-orbit isomerism for satellite Download PDF

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CN118152018A
CN118152018A CN202410279542.0A CN202410279542A CN118152018A CN 118152018 A CN118152018 A CN 118152018A CN 202410279542 A CN202410279542 A CN 202410279542A CN 118152018 A CN118152018 A CN 118152018A
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reconstruction
zynq
file
mode
program
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高洁
王滔
田文波
刘强
程世祺
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Shanghai Spaceflight Electronic and Communication Equipment Research Institute
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Shanghai Spaceflight Electronic and Communication Equipment Research Institute
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    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02DCLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D10/00Energy efficient computing, e.g. low power processors, power management or thermal management

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Abstract

The invention discloses a ZYNQ in-orbit heterogeneous reconstruction system and method for satellites, comprising the following steps: the ZYNQ chip module comprises a PS port with an ARM processor, a first reconstruction program storage carrier, a second reconstruction program storage carrier and a MODE configuration circuit; the PS port of the ZYNQ chip module is connected with the corresponding slicing/partitioning module through a first reconstruction program storage carrier and a second reconstruction program storage carrier respectively; the MODE signal sent by the MODE configuration circuit of the PS port of the ZYNQ chip module is connected with an external TTL signal, and a control instruction in a reconstruction MODE is configured and generated according to an external instruction, and a reconstruction link is selected through the corresponding control instruction. Through the mode instruction selection reconfiguration links, each link is checked and maintained in correctness when idle, so that the high-reliability peripheral FPGA required by traditional reconfiguration is reduced, system breakdown caused by single device faults is avoided, and the reliability of application of commercial devices on space products is improved.

Description

System and method for reconstructing ZYNQ in-orbit isomerism for satellite
Technical Field
The invention belongs to the technical field of space electronics, and particularly relates to a ZYNQ in-orbit heterogeneous reconstruction system and method for satellites.
Background
With the increasing demands of space electronic products for high-performance computation and high-speed information transmission, commercial high-speed high-performance MPSOCs gradually become core processing components of the products, and meanwhile, high-speed and high-capacity nonvolatile FLASH chips become optimal program storage spaces of the MPSOCs. However, in the research and development stage of the advanced devices in China, only commercial grade devices can be selected as imported chips, and how to ensure that single faults of the devices can not cause system breakdown and can timely recover system functions in a space radiation environment is a problem which must be considered in design.
The ZYNQ chip is used as a typical product of the MPSOC, and comprises PS (ProcessSystem) and PL (ProgramLogic) parts, wherein the PS end comprises an ARM processor and is used for running a software program, the PL end is used for realizing logic bit stream mapping for FPGA logic, and the combined use of PS and PL can well meet the requirements of space high-performance calculation and high-speed information transmission.
The method for loading and reconstructing the space-borne ZYNQ is researched in China, a high-reliability FPGA such as a FLASH type FPGA is adopted as a reconstruction controller to complete the control of reconstruction data flow, a reconstruction file carrier such as FLASH, MRAM and the like is hung on a pin of the reconstruction controller, a chip and control logic are additionally added in the reconstruction mode, the FLASH and MRAM are combined into a group of reconstruction program storage carriers, and the failure of any device can lead to unrepairable system. Therefore, it is necessary to propose an in-orbit heterogeneous reconstruction method for the ZYNQ for satellites, and related products and related patents are not found in China.
Disclosure of Invention
The invention aims to provide a ZYNQ in-orbit heterogeneous reconstruction system and a method for satellite, which adopt two groups of independent heterogeneous reconstruction program storage carriers, select reconstruction links through mode instructions, check and maintain correctness of each link when idle, and the reconstructed codes can be stored in a partitioned mode, so that the high-reliability peripheral FPGA required by the traditional reconstruction is reduced, the system breakdown caused by single device faults is avoided in the method, and the method has the advantages of obviously reducing the cost and the complexity of the system.
The invention provides a ZYNQ in-orbit heterogeneous reconstruction system for satellites, which comprises the following components: the system comprises a ZYNQ chip module, a first reconstruction program storage carrier, a second reconstruction program storage carrier and a MODE configuration circuit, wherein the ZYNQ chip module comprises a PS port with an ARM processor and is used for running a software program; the PS port of the ZYNQ chip module is connected with the corresponding slicing/partitioning module through the first reconstruction program storage carrier and the second reconstruction program storage carrier respectively; and a MODE signal sent by the MODE configuration circuit of the PS port of the ZYNQ chip module is connected with an external TTL signal, and a control instruction in a reconstruction MODE is configured and generated according to an external instruction, and a reconstruction link is selected through the corresponding control instruction.
Preferably, the first reconfiguration program storage carrier is a QSPI/spiglash chip, and the second reconfiguration program storage carrier is a NANDFLASH chip.
Preferably, the MODE configuration circuit defines a MODE0 MODE and a MODE1 MODE, and when a fault occurs in the MODE0 MODE, the MODE configuration circuit is started by switching to the MODE1 MODE through an instruction.
Preferably, the first reconfiguration program storage carrier and the second reconfiguration program storage carrier adopt devices with different process structures, and respectively form independent reconfiguration program storage carrier groups, and the failure modes are different when the reconfiguration program storage carriers are applied in space.
Preferably, the QSPI/spiglash chip and the NANDFLASH chip use a slicing or partitioning mode to store a BOOT file, an operating system image file, and an application program file respectively.
The invention also provides a method for reconstructing the ZYNQ in-orbit isomerism for the satellite, which is applied to the system for reconstructing the ZYNQ in-orbit isomerism for the satellite, and comprises the following steps:
S1: after the ZYNQ chip module runs the PS end, reading Bootmode registers of the internal ROM to judge the starting MODE, setting a register state pin by a MODE configuration circuit in a reconstruction circuit, and controlling the working state by an external remote control instruction;
S2: the method comprises the steps of configuring a PS end state by an SDK tool to generate an FSBL.elf file, configuring a PL end to generate a bit file by Compile, generating a BOOT.BIN file by a CreateBootImage tool in tools, writing the BOOT.BIN file into a partition 0 of a corresponding FLASH by a preset loading mode, and performing initialization configuration for a starting system and jumping to an operating system image file and an application APP file for guiding a subsequent program pointer;
S3: after the BOOT of the system is completed, the program pointer jumps to the partition 1 of the SPILASH, loads an operating system image file and an application APP file, reads and verifies the correctness of data, and realizes fault recovery of one check and two check of each byte by ECC (error correction code) verification when the data are stored;
S4: after the program is checked to be correct, the program is automatically operated, and the system state is downloaded to the ground in a telemetry data form to judge the correctness of the system reconstruction while the program operation result is output;
s5: if the reconstruction is completed correctly and the program runs normally, the correctness of the BOOT.BIN file in the other group of reconstruction memories is read and checked regularly when the program runs idly, and the error content is repaired timely;
S6: under the condition of unrecoverable faults in the reconstruction process, the reconstruction MODE state is changed through a control instruction, the system is subjected to the operation of restarting or powering up again, the steps of S1-S5 are circulated by adopting another group of reconstruction memories, and the heterogeneous state reconstruction is completed.
Preferably, in step S1, when Bootmode registers read mode=0, then the program pointer is jumped to partition 0 of the spiglash, and the boot.bin file is read and loaded.
Preferably, in step S3, after the file of the BOOT partition is read, the file is transmitted to the corresponding partition or partition according to the direction of the BOOT file, and the operating system image file is read and the application file is executed.
Preferably, in step S5, the first BOOT file is read from the BOOT partition for verification, and if the verification is wrong, the second BOOT file or the third BOOT file of the sequential partition is read to perform a redundant backup function.
The invention also provides an electronic device, comprising:
a memory for storing a processing program;
And the processor is used for realizing the ZYNQ in-orbit heterogeneous reconstruction method for the satellite according to the embodiment of the invention when executing the processing program.
Compared with the prior art, the invention has the beneficial effects that:
according to the invention, two groups of independent heterogeneous reconstruction program storage carriers are adopted, the reconstruction links are selected through the mode instruction, each link is checked and maintained to be correct when idle, the reconstructed codes can be stored in a partitioned mode, so that the high-reliability peripheral FPGA required by the traditional reconstruction is reduced, the system breakdown caused by single device faults is avoided in a method, the advantages of obviously reducing the cost and the system complexity are achieved, and related products and related patents are not found in China.
Drawings
FIG. 1 is a schematic diagram of a system for reconstructing on-orbit isomerous ZYNQ reconstruction for satellites in an embodiment of the invention;
FIG. 2 is a flow chart of steps of a method for reconstructing on-orbit isomerous ZYNQ for satellites in an embodiment of the invention;
Fig. 3 is a flow chart of generating a on-orbit heterogeneous reconstruction boot.bin file for a satellite according to an embodiment of the present invention.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments of the present invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Example 1
As shown in fig. 1, the present invention provides a ZYNQ in-orbit heterogeneous reconstruction system for satellites, comprising: the system comprises a ZYNQ chip module, a first reconstruction program storage carrier, a second reconstruction program storage carrier and a MODE configuration circuit, wherein the ZYNQ chip module comprises a PS port with an ARM processor and is used for running a software program; the PS port of the ZYNQ chip module is connected with the corresponding slicing/partitioning module through the first reconstruction program storage carrier and the second reconstruction program storage carrier respectively; and a MODE signal sent by the MODE configuration circuit of the PS port of the ZYNQ chip module is connected with an external TTL signal, and a control instruction in a reconstruction MODE is configured and generated according to an external instruction, and a reconstruction link is selected through the corresponding control instruction. It can be understood that the working principle is as follows: s1: the reconstruction circuit comprises a QSPI/SPIFASH chip and a NANDFLASH chip which are connected to the PS end of the ZYNQ chip module, and a MODE control TTL interface configuration circuit which is connected to the PS end of the ZYNQ chip module; s2: the QSPI/SPIFASH chip is used as a group of reconstruction program storage carriers and the NANDFLASH chip is used as another group of reconstruction program storage carriers to form a heterogeneous reconstruction system; s3: the satellite sends a reconstruction MODE control instruction in orbit, namely a MODE control TTL signal which is output to the PS end of the ZYNQ chip module, and the starting MODE is selected; s4: the QSPI/SPIFASH chip and the NANDFLASH chip adopt a slicing or partitioning mode to respectively store BOOT files and operating system image files and application program files; s5: timely reading and checking correctness of BOOT.BIN files in the heterogeneous other group of memories, and timely repairing error contents; s6: and starting redundant storage of the files, and writing a plurality of BOOT.BIN files during reconstruction to play a role in redundant backup. The chips of the reconstructed storage carrier are all connected to the PS end of the ZYNQ, and the MODE signal of the PS end of the ZYNQ chip module is connected to an external TTL signal receiving interface. And when the system is started, the ROM in the ZYNQ chip reads the MODE state, and a pointer for reading a BOOT instruction is pointed to the QSPIS/SPILASH chip or the NANDFLASH chip according to the state. In step 4, after the file of the BOOT partition is read, the image file of the operating system is read according to the corresponding partition or partition according to the direction of the BOOT file, and the application program file is executed. The partition or the partition has the advantages that a plurality of BOOT-controlled BOOT.BIN files can be stored in the BOOT partition, the BOOT files are sequentially read for verification during reconstruction, if the verification errors can read the second or third BOOT files in the sequential partition, the redundant backup function is achieved, a plurality of operating system images or different application files can be stored according to the file sizes for the partitions of the operating system images and the application program files, and switching of various working modes can be achieved through on-track reconstruction of few parameters. In the correctness of the BOOT.BIN files in the heterogeneous other group of memories, after the system completes reconstruction, the program runs in the external DDR memory, the system does not access the memory device for reconstruction any more, but the memory device is easily affected by radiation in the space environment to cause the stored data errors, so that the correctness of the BOOT.BIN files in the heterogeneous other group of memories needs to be read and checked at regular time when the system works normally, and the error content is repaired in time so as to ensure the correctness of the startup file when the next reconstruction is started. In step 5, the boot.bin files are read from the BOOT partitions for verification, and if the verification errors occur, the second or third BOOT files of the sequential partitions can be read to play a role in redundancy backup.
The first reconstruction program storage carrier is a QSPI/SPILASH chip, and the second reconstruction program storage carrier is a NANDFLASH chip.
The starting MODEs of the MODE configuration circuit are respectively defined as MODE0 and MODE1, and when the MODE0 MODE fails, the starting is performed by switching to the MODE1 MODE through an instruction.
The first reconstruction program storage carrier and the second reconstruction program storage carrier adopt devices with different process structures, respectively form independent reconstruction program storage carrier groups, and have different fault modes in space application.
And the QSPI/SPIFASH chip and the NANDFLASH chip respectively store BOOT files, operating system image files and application program files in a slicing or partitioning mode.
It can be understood by those skilled in the art that the in-orbit heterogeneous reconstruction circuit system for satellite adopted in the implementation comprises a QSPI/SPIFASH chip and a NANDFLASH chip which are connected to the PS end of the ZYNQ chip module, and a MODE control TTL interface configuration circuit connected to the PS end of the ZYNQ chip module; the QSPI/SPIFASH chip is used as a group of reconstruction program storage carriers and the NANDFLASH chip is used as another group of reconstruction program storage carriers to form a heterogeneous reconstruction system.
The ZYNQ chip comprises PS (ProcessSystem) and PL (ProgramLogic) parts, wherein the PS end comprises an ARM processor for running software programs, and the PL end realizes logic bit stream mapping for FPGA logic.
The reconstruction circuit comprises a reconstruction program storage carrier and a MODE configuration circuit, wherein the QSP/SPIFASH chip and the NANDFLASH chip respectively store BOOT files, operating system image files and application program files in a slicing or partitioning MODE, when the QSP/SPIFASH chip and the NANDFLASH chip are applied in space, the space radiation effect such as a fault caused by a single event upset effect and an ionization total dose effect exists, but because the two types of chips have different process structures, the sensitivity to the space radiation effect is different, the single fault cannot occur at the same time, the two types of chips respectively form independent reconstruction program storage carrier groups, the MODE configuration circuit is used for carrying out configuration according to external instructions, and two starting MODEs are respectively defined as MODE0 and MODE1, and if the fault occurs in one MODE, the two types of starting MODEs are switched to the other MODE through instructions.
In the embodiment of the invention, the on-orbit switchable start file reconstruction is realized by executing the following on-orbit heterogeneous reconstruction method, wherein the on-orbit switchable start file reconstruction comprises a QSPI/SPIFASH chip, a NANDFLASH chip set and a MODE control TTL interface configuration circuit.
The invention also provides a ZYNQ in-orbit heterogeneous reconstruction method for the satellite, which is applied to the ZYNQ in-orbit heterogeneous reconstruction system for the satellite, and comprises the following steps:
S1: referring to fig. 2, the system is powered on or reset, after the ZYNQ chip module runs the PS end, a Bootmode register of the internal ROM is read to determine the starting MODE, and a register state pin is set by a MODE configuration circuit in the reconfiguration circuit, and the working state is controlled by an external remote control instruction;
s2: as shown in FIG. 3, the BOOT.BIN file contains a PS end program and a PL end bit stream, the PS end program has a file format of. Elf, the PL end has a file format of. Bit, the configuration, design and generation are all required to be carried out by adopting a development tool Vivado special for Xilinx company, the main process is to adopt an SDK tool to configure the PS end state to generate an FSBL.elf file, use Compile to generate the PL end configuration, use Compile to generate the bit file, adopt a CreateBootImage tool in tools to generate the BOOT.BIN file, use a preset loading mode to write the BOOT.BIN file into a partition 0 of corresponding FLASH for starting system initialization configuration, and jump a subsequent program pointer to an operating system mirror file and an application APP file for guiding; the BOOT.BIN file is written into partition 0 of the corresponding FLASH in a preset loading mode such as JTAG chain loading, UART serial port loading and the like;
S3: after the BOOT of the system is completed, the program pointer jumps to the partition 1 of the SPILASH, loads an operating system image file and an application APP file, reads and verifies the correctness of data, and realizes fault recovery of one check and two check of each byte by ECC (error correction code) verification when the data are stored;
S4: after the program is checked to be correct, the program is automatically operated, and the system state is downloaded to the ground in a telemetry data form to judge the correctness of the system reconstruction while the program operation result is output;
s5: if the reconstruction is completed correctly and the program runs normally, the correctness of the BOOT.BIN file in the other group of reconstruction memories is read and checked regularly when the program runs idly, and the error content is repaired timely;
S6: under the condition of unrecoverable faults in the reconstruction process, the reconstruction MODE state is changed through a control instruction, the system is subjected to the operation of restarting or powering up again, the steps of S1-S5 are circulated by adopting another group of reconstruction memories, and the heterogeneous state reconstruction is completed.
Through the steps, the on-orbit reconstruction of the ZYNQ for the satellite can be completed, and the reconstruction path can be switched through a MODE instruction.
In the embodiment of the invention, the system reconstruction can be completed by adopting relatively fewer circuits and controls, and two groups of independent heterogeneous reconstruction programs in the system store carriers, so that the system breakdown can not be caused by the failure of any device, and the invention has obvious reliability advantages.
Specifically, in step S3, after the file of the BOOT partition is read, the file is transmitted to the corresponding partition or partition according to the direction of the BOOT file, and the image file of the operating system is read and the application file is executed.
Specifically, in step S5, the first BOOT file is read from the BOOT partition for verification, and if the verification is wrong, the second BOOT file or the third BOOT file of the sequential partition is read to play a role in redundancy backup.
Based on the same conception, the electronic equipment provided by the invention comprises:
a memory for storing a processing program;
And the processor is used for realizing the ZYNQ in-orbit heterogeneous reconstruction method for the satellite according to the embodiment of the invention when executing the processing program.
The readable storage medium is stored with a processing program, and the processing program realizes the method for reconstructing the ZYNQ in-orbit isomerism for the satellite according to the embodiment of the invention when being executed by a processor.
The in-orbit heterogeneous reconstruction device for the satellite ZYNQ can generate relatively large difference due to different configurations or performances and can comprise one or more processors (centralprocessingunits, CPU) and memories, one or more storage mediums (such as one or more mass storage devices) for storing application programs or data. The memory and storage medium may be transitory or persistent. The program stored on the storage medium may include one or more modules, each of which may include a series of instruction operations in an in-orbit heterogeneous reconstruction device for a satellite.
Further, the processor may be configured to communicate with a storage medium and execute a series of instruction operations in the storage medium on an in-orbit heterogeneous reconstruction device for the satellite.
The in-orbit heterogeneous reconstruction device for the satellite ZYNQ can also comprise one or more power supplies, one or more wired or wireless network interfaces, one or more input/output interfaces, and/or one or more operating systems, such as WindowsServe, vista and the like.
The present invention also provides a computer readable storage medium having a computer program stored thereon, which when executed by one or more processors, implements a method for heterogeneous reconstruction of a satellite ZYNQ in accordance with the first embodiment of the present invention. The modules in the second embodiment may be stored in a computer-readable storage medium if implemented as software functional modules and sold or used as a separate product. Based on such understanding, the technical solution of the present invention may be embodied in software in essence or a part or all of the technical solution contributing to the prior art, and the computer readable storage medium may be a non-volatile computer readable storage medium, and the computer readable storage medium may also be a volatile computer readable storage medium. The computer readable storage medium has instructions stored therein that when executed on a computer cause the computer to perform the steps of the in-orbit heterogeneous reconstruction of the ZYNQ for satellites of the first embodiment.
It will be appreciated by those skilled in the art that aspects of the present invention, in essence, or portions thereof, or all or part of the aspects of the present invention may be embodied in software, which is stored in a storage medium, including instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of a method according to embodiments of the present invention. And the aforementioned storage medium includes: a usb disk, a removable hard disk, a ROM, a RAM, a magnetic disk, or an optical disk, or other various media capable of storing program codes. It will be clearly understood by those skilled in the art that, for convenience and brevity of description, the specific working process of the apparatus described above may refer to the corresponding process in the foregoing method embodiment, which is not described herein again.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention, and are not limiting; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims (10)

1. An in-orbit heterogeneous reconstruction system for a satellite, comprising: the system comprises a ZYNQ chip module, a first reconstruction program storage carrier, a second reconstruction program storage carrier and a MODE configuration circuit, wherein the ZYNQ chip module comprises a PS port with an ARM processor and is used for running a software program; the PS port of the ZYNQ chip module is connected with the corresponding slicing/partitioning module through the first reconstruction program storage carrier and the second reconstruction program storage carrier respectively; and a MODE signal sent by the MODE configuration circuit of the PS port of the ZYNQ chip module is connected with an external TTL signal, and a control instruction in a reconstruction MODE is configured and generated according to an external instruction, and a reconstruction link is selected through the corresponding control instruction.
2. The ZYNQ in-orbit heterogeneous satellite system according to claim 1, wherein the first reconstruction program storage carrier is a QSPI/spiglash chip and the second reconstruction program storage carrier is a NANDFLASH chip.
3. The ZYNQ in-orbit heterogeneous satellite reconstruction system according to claim 1, wherein the MODE configuration circuit has a start MODE defined as MODE0 and MODE1, respectively, and the MODE configuration circuit is started by switching to MODE1 by an instruction when a failure occurs in MODE 0.
4. The ZYNQ in-orbit heterogeneous reconstruction system for satellites according to claim 1, wherein the first reconstruction program storage carrier and the second reconstruction program storage carrier adopt devices with different process structures, respectively form independent reconstruction program storage carrier groups, and have different fault modes in space application.
5. The ZYNQ in-orbit heterogeneous reconstruction system for satellites according to claim 2, wherein the QSPI/spiglash chip and the NANDFLASH chip store BOOT files, operating system image files and application program files respectively in a sliced or partitioned manner.
6. An in-orbit heterogeneous reconstruction method for a ZYNQ for a satellite, which is applied to the in-orbit heterogeneous reconstruction system for the ZYNQ for the satellite as claimed in any one of claims 1 to 5, and is characterized by comprising the following steps:
S1: after the ZYNQ chip module runs the PS end, reading Bootmode registers of the internal ROM to judge the starting MODE, setting a register state pin by a MODE configuration circuit in a reconstruction circuit, and controlling the working state by an external remote control instruction;
S2: the method comprises the steps of configuring a PS end state by an SDK tool to generate an FSBL.elf file, configuring a PL end to generate a bit file by Compi le, generating a BOOT.BIN file by a CreateBootImage tool in tools, writing the BOOT.BIN file into a partition 0 of a corresponding FLASH by a preset loading mode, and performing initialization configuration for a starting system and jumping to an operating system image file and an application APP file for guiding a subsequent program pointer;
S3: after the BOOT of the system is completed, the program pointer jumps to the partition 1 of the SPILASH, loads an operating system image file and an application APP file, reads and verifies the correctness of data, and realizes fault recovery of one check and two check of each byte by ECC (error correction code) verification when the data are stored;
S4: after the program is checked to be correct, the program is automatically operated, and the system state is downloaded to the ground in a telemetry data form to judge the correctness of the system reconstruction while the program operation result is output;
s5: if the reconstruction is completed correctly and the program runs normally, the correctness of the BOOT.BIN file in the other group of reconstruction memories is read and checked regularly when the program runs idly, and the error content is repaired timely;
S6: under the condition of unrecoverable faults in the reconstruction process, the reconstruction MODE state is changed through a control instruction, the system is subjected to the operation of restarting or powering up again, the steps of S1-S5 are circulated by adopting another group of reconstruction memories, and the heterogeneous state reconstruction is completed.
7. The method according to claim 6, wherein in step S1, when Bootmode registers read mode=0, the program pointer is jumped to partition 0 of the spiglash, and the boot. Bin file is read and loaded.
8. The method for heterogeneous reconstruction of ZYNQ for satellites in orbit according to claim 6, wherein in step S3, after reading the file of the BOOT partition, the file is transmitted to the corresponding partition or partition according to the direction of the BOOT file to read the image file of the operating system and execute the application program file.
9. The method for heterogeneous reconstruction of a satellite ZYNQ in orbit according to claim 6, wherein in step S5, the first BOOT. Bin file is read from the BOOT partition for verification, and if the verification is wrong, the second BOOT. Bin file or the third BOOT. Bin file of the sequential partition is read to perform redundancy backup.
10. An electronic device, comprising:
a memory for storing a processing program;
A processor which, when executing the processing program, implements the ZYNQ in-orbit heterogeneous reconstruction method for satellites according to any one of claims 6 to 9.
CN202410279542.0A 2024-03-12 2024-03-12 System and method for reconstructing ZYNQ in-orbit isomerism for satellite Pending CN118152018A (en)

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