CN107301067A - Beidou subscriber machine remote update system and its upgrade method based on IAP technologies - Google Patents
Beidou subscriber machine remote update system and its upgrade method based on IAP technologies Download PDFInfo
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- CN107301067A CN107301067A CN201710383780.6A CN201710383780A CN107301067A CN 107301067 A CN107301067 A CN 107301067A CN 201710383780 A CN201710383780 A CN 201710383780A CN 107301067 A CN107301067 A CN 107301067A
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F8/00—Arrangements for software engineering
- G06F8/60—Software deployment
- G06F8/65—Updates
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W24/00—Supervisory, monitoring or testing arrangements
- H04W24/02—Arrangements for optimising operational condition
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W28/00—Network traffic management; Network resource management
- H04W28/02—Traffic management, e.g. flow control or congestion control
- H04W28/06—Optimizing the usage of the radio link, e.g. header compression, information sizing, discarding information
- H04W28/065—Optimizing the usage of the radio link, e.g. header compression, information sizing, discarding information using assembly or disassembly of packets
Abstract
The invention belongs to Beidou satellite navigation communication technical field, and in particular to a kind of Beidou subscriber machine remote update system and its upgrade method based on IAP technologies.The present invention includes remote update system upgrading platform, Beidou subscriber machine to be upgraded, Beidou satellite system, the output end of the system upgrade platform is exported to be transmitted to the input of Beidou subscriber machine to be upgraded for the Beidou communication application message of upgrading by Beidou satellite system, on the basis of remote update system, Beidou subscriber machine is realized in Function Extension using IAP technologies, its software upgrading need not be powered off and dismantled to subscriber computer, the functional software for directly achieving that Beidou subscriber machine by upgrade method updates, the problem of efficiently solving Beidou subscriber machine remote software scaling difficulty.
Description
Technical field
The invention belongs to Beidou satellite navigation communication technical field, and in particular to a kind of Big Dipper user based on IAP technologies
Machine remote update system and its upgrade method.
Background technology
Beidou satellite navigation system is the GPS of Chinese independent development, by space segment, ground segment and use
Family three parts of section composition, system has two kinds of business models of RDSS and RNSS concurrently.RDSS has short message communication service, can pass through
Satellite link sends the character within certain length.
IAP online upgradings, IAP is STM32 chips very powerful One function, and its essence is exactly that program in itself can be with outbound
Data or modification program are write in sequence memory., can also be easily by reserved after product issue using IAP functions
COM1, such as serial ports, USB, IIC are updated upgrading to the program firmware in product.The firmware of IAP functions is general
Include two parts：Boot and UserApp, wherein Boot part must carry out burning, UserApp parts by JATG or ISP
It can upgrade burned by IAP after burning BOOT or burning carried out by JATG or ISP after being merged together with BOOT.
Prior art is generally upgraded using ISP software burning modes to Beidou subscriber machine, and each burning all has to
Connect machine with computer, ISP software burning modes, which can not be realized, automatically updates contents of program, it is clear that can not solve Big Dipper user
Machine software upgrading problem under unattended application environment.
The content of the invention
There is provided a kind of Beidou subscriber machine based on IAP technologies is remote in order to overcome the above-mentioned deficiencies of the prior art by the present invention
Journey upgrade-system, present invention efficiently solves the problem of Beidou subscriber machine remote software scaling difficulty.
To achieve the above object, present invention employs following technical measures：
A kind of Beidou subscriber machine remote update system based on IAP technologies includes system upgrade platform, the Big Dipper to be upgraded and used
Family machine, Beidou satellite system, the output end of the system upgrade platform export the Beidou communication application message for upgrading, described
Beidou communication application message for upgrading is transmitted to the input of Beidou subscriber machine to be upgraded by Beidou satellite system.
It is preferred that, the system upgrade platform includes software translating module, file declustering module, Big Dipper short message Encapsulation Moulds
Block, Big Dipper short message sending module, wherein,
Software translating module, for software source code compiling generation Hex files to be upgraded, and by the Hex files
Send to the input of file declustering module；
File declustering module, is parsed for the content to Hex files, according to the set form of Hex files, every time with
The content that behavior unit extracts 2 to 3 row Hex files obtains many sub- Hex files；
Big Dipper short message package module, it seals multiple sub- Hex files according to the protocol format of Beidou communication application
The Beidou communication application message for upgrading is obtained in the telegraph text content field of Beidou communication application；
Big Dipper short message sending module, for receiving the Beidou communication for being used to upgrade from Big Dipper short message package module
Apply for message, and will be transmitted for the Beidou communication application message of upgrading by Beidou satellite system to Beidou subscriber machine to be upgraded
Input.
It is preferred that, the Beidou subscriber machine to be upgraded includes Beidou communication module, MCU control module and memory module,
Beidou communication module, for receiving the Beidou communication application report for being used to upgrade from Big Dipper short message sending module
Text, and the Beidou communication application message for upgrading is sent to the input of MCU control module；
MCU control module, the Content of Communication for extracting the Beidou communication application message for upgrading, according to Content of Communication
Form to message content judge, the message content of the telegraph text content field format requirement for meeting Beidou communication application, will
It is stored to memory module, is given up for not meeting the message content of telegraph text content field format requirement of Beidou communication application
Abandon, and send repeating transmission request to system upgrade platform.
It is preferred that, the telegraph text content field of the Beidou communication application include successively frame head, command character, data length,
Totalframes, synchronous code, storage address, data type, data content, updated contents end mark, check code.
It is preferred that, the MCU control module includes control chip, the model STM32 family chips of the control chip.
Further, the memory module is the outer Flash memory chip of piece.
Present invention also offers the upgrade method of the Beidou subscriber machine remote update system based on IAP technologies, including it is following
Step：
Enter IAP bootstrap on S1, MCU control module after electricity；
Software source code compiling to be upgraded is generated Hex files by S2, the software translating module, and the Hex is literary
Part is sent to the input of file declustering module；
S3, the file declustering module are parsed to the content of Hex files, according to the set form of Hex files, every time
The content for extracting 2 to 3 row Hex files with behavior unit obtains many sub- Hex files；
S4, the Big Dipper short message package module are according to the protocol format of Beidou communication application, by multiple sub- Hex texts
Part is encapsulated in the Beidou communication application message obtained in the telegraph text content field of Beidou communication application for upgrading；
It is logical that S5, the Big Dipper short message sending module receive the Big Dipper for being used to upgrade from Big Dipper short message package module
Letter application message, and the Beidou communication application message for upgrading is exported to the input of Beidou satellite system；
S6, the Beidou satellite system export Beidou communication application message or Beidou communication information for upgrading to the Big Dipper
The input of communication module；
S7, the Beidou communication module by Beidou communication application message or Beidou communication information for upgrading send to
The input of MCU control module；
S8, the MCU control module are received after Beidou communication application message or Beidou communication information for upgrading, first
First judge it is updated contents or Beidou communication content, if Beidou communication content, then give the processing of user function task；Such as
Fruit is updated contents, then the Beidou communication application message for upgrading is judged according to telegraph text content field, for not being inconsistent
The Beidou communication application message for being used to upgrade that upgrading is required is closed, MCU control module abandoned, and send repeating transmission request to being
System upgrading platform, for meeting the Beidou communication application message for being used to upgrade that upgrading is required, MCU control module will be used to upgrade
Beidou communication application packet storage in memory module, when MCU control module receives updated contents end mark and again
When Hex file contents after group bag are complete, the software upgrading mark in main program set MCU control module in MCU control module
Will position, main program restarts MCU control module into IAP bootstrap, completes upgrading task.
It is preferred that, the concrete operation step of the IAP bootstrap is as follows：
The chip initiation module of MCU control module main program reads software upgrading flag bit first, judges north to be upgraded
Whether bucket subscriber computer needs upgrading, if need not upgrade, MCU control module normally starts, and jumps to user function program, holds
The normal service function of row Beidou subscriber machine；If necessary to upgrade, then IAP bootstrap enters upgrading task, the Flash outside piece
The communication information for upgrading is read in storage chip and by the address information in Hex files, content is write into MCU control module
In internal Flash；IAP bootstrap resets interrupt vector table initial address, upgrading flag bit is removed, by MCU controls
Module pointer points to initial address, and then MCU control module pointer jumps to initial address, performs new user program, completes
Upgrading task.
The beneficial effects of the present invention are：
1), the present invention includes remote update system upgrading platform, Beidou subscriber machine to be upgraded, Beidou satellite system, described
The output end of system upgrade platform exports Beidou communication application message for upgrading and transmitted by Beidou satellite system to waiting to rise
The input of level Beidou subscriber machine, on the basis of remote update system, Beidou subscriber machine is realized in function using IAP technologies
During extension, its software upgrading need not be powered off and dismantled to subscriber computer, directly achieve that the Big Dipper is used by upgrade method
The functional software of family machine updates, the problem of efficiently solving Beidou subscriber machine remote software scaling difficulty.
2), the present invention utilizes the content of Big Dipper short message communication link transmission upgrading software during software of upgrading,
Compared with general public network communication, with high reliability and confidentiality.
3), the present invention is communicated during software of upgrading using Beidou communication link, not by terrestrial communication networks
Limitation, for unattended and geographical environment is complicated, that public network signal is obstructed is local equally applicable, effectively solves user
The problem of machine equipment remote upgrade.
Brief description of the drawings
Fig. 1 is the system block diagram of the remote update system of the present invention；
Fig. 2 is the flow chart of the IAP bootstrap of the present invention；
Fig. 3 is the flow chart of the main program of the present invention.
10-system upgrade platform 11-software translating module
12-file declustering module 13-Big Dipper short message package module
14-Big Dipper short message sending module 20-Beidou subscriber machine to be upgraded
21-Beidou communication, 22-MCU control module of module
23-memory module, 30-Beidou satellite system
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation is described, it is clear that described embodiment is only a part of embodiment of the invention, rather than whole embodiments.It is based on
Embodiment in the present invention, it is every other that those of ordinary skill in the art are obtained under the premise of creative work is not made
Embodiment, belongs to the scope of protection of the invention.
As shown in figure 1, a kind of Beidou subscriber machine remote update system based on IAP technologies include system upgrade platform 10,
Beidou subscriber machine 20 to be upgraded, Beidou satellite system 30, the output end of the system upgrade platform 10 export the north for upgrading
Bucket communication application message, the Beidou communication application message for being used to upgrade is transmitted to north to be upgraded by Beidou satellite system 30
The input of bucket subscriber computer 20.
The system upgrade platform 10 includes software translating module 11, file declustering module 12, Big Dipper short message Encapsulation Moulds
Block 13, Big Dipper short message sending module 14, the software translating module 11, which is used to compile software source code to be upgraded, to be generated
Hex files, and the Hex files are sent to the input of file declustering module 12；File declustering module 12 is used for Hex texts
The content of part is parsed, and according to the set form of Hex files, extracts the content of 2 to 3 row Hex files with behavior unit every time
Obtain many sub- Hex files；Big Dipper short message package module 13 is according to the protocol format of Beidou communication application, by multiple sons
Hex Document encapsulations obtain the Beidou communication application message for upgrading in the telegraph text content field of Beidou communication application；The Big Dipper
Short message sending module 14 is used to receive the Beidou communication application message for being used to upgrade from Big Dipper short message package module 13,
And it is defeated to Beidou subscriber machine 20 to be upgraded by being transmitted for the Beidou communication application message of upgrading by Beidou satellite system 30
Enter end.
Hex files are used for preserving single-chip microcomputer or the program codes of other processors, and it preserves physical procedures memory block
In object code map, Hex files are all made up of printable ascii character, in Hex files, are one per a line
Hex is recorded, the machine code or data constant being made up of hexadecimal number；Often go by "：" (0x3a) beginning, with carriage return key
Terminate (0x0d, 0x0a).Data in row are all by two character representations, one 16 system byte, such as " 01 " represent number
0x01；" 0a " expression numbers 0x0a.For the address of 16, then it is high-order in preceding low level in rear, such as address 0x010a, in Hex texts
Character string is expressed as in part " 010a ".The Hex files compiled for KEIL, for example,:
1000080080318B1E0828092820280B1D0C280D2854 can be counted as " 0x10 0x00 0x08 0x00 0x80
0x31 0x8B 0x1E 0x08 0x28 0x09 0x28 0x20 0x28 0x0B 0x1D 0x0C 0x28 0x0D 0x28
0x54”；Starting character "：" after first character section 0x10 represent the length of one's own profession data；Second and third byte 0x000x08 represents this
The initial address of row data；Nybble 0x00 represents data type, followed by data content, and last byte 0x54 is represented
Check code.
The Beidou subscriber machine to be upgraded 20 includes Beidou communication module 21, MCU control module 22 and memory module 23,
The Beidou communication module 21 is used to receive the Beidou communication application report for being used to upgrade from Big Dipper short message sending module 14
Text, and the Beidou communication application message for upgrading is sent to the input of MCU control module 22；MCU control module 22 is used
In the Content of Communication for extracting the Beidou communication application message for upgrading, message content is judged according to the form of Content of Communication,
For the message content for the telegraph text content field format requirement for meeting Beidou communication application, stored to memory module 23, it is right
Given up in the message content for the telegraph text content field format requirement for not meeting Beidou communication application, and send repeating transmission request extremely
System upgrade platform 10.
Beidou communication module 21 carries out short message communication by Beidou satellite system 30, and realization is sent out system upgrade platform 10
The Big Dipper link data brought is received.
MCU control module 22 is the core of Beidou subscriber machine 20 to be upgraded, is also the work(of Beidou subscriber machine 20 to be upgraded
Can program carrier, coordination control and data processing fortune for each functional module for realizing Beidou subscriber machine 20 to be upgraded
Calculate.
Hex files are a kind of file format of the programming to 22 interior Flash of MCU control module.
Specifically, the MCU control module 22 includes control chip, the serial cores of model STM32 of the control chip
Piece；The memory module 23 is the outer Flash memory chip of piece.STM32 family chips support IAP, and IAP is internal in the process of running
Portion User Flash subregion carries out programming, in order to can be conveniently by reserved communication after product issue
Mouth is updated upgrading to the firmware program in product.IAP functions are realized, it is necessary to which device program is made into two project procedures,
First project procedure only provides IAP guiding and the internal Flash data of modification, and it does not provide norma functional operation.Second item
Mesh program is user program, and it can provide normal feature operation.IAP bootstrap is responsible for file write-in to be upgraded
User Flash, and program interrupt vector entry is set, start user program.Program to be upgraded is generally compiled by Keil compilers
Into Hex files.
Beidou communication is limited by satellite resource, and its common short message communication frequency is 60s, and its Content of Communication length is less than 78
Individual byte.Big Dipper short message disposably continuously can not send file to be upgraded to MCU control module 22, and it is with the short report of the Big Dipper
The form of text is sent to subscriber computer to be upgraded.It is as shown in table 1 that the telegraph text content field of Beidou communication application includes content successively：
Table 1：
As shown in Figure 2,3, a kind of upgrade method of the Beidou subscriber machine remote update system based on IAP technologies, including with
Lower step：
Enter IAP bootstrap on S1, MCU control module 22 after electricity；MCU control module 22 is guided by IAP bootstrap
Pointer enters the startup that reset interrupt completes user function program.After user function program starts, MCU control module 22 is except carrying
Outside for normal user function demand, its internal system also has a updated contents store tasks；
S2, the software translating module 11 are by software source code compiling generation Hex files to be upgraded, and by the Hex
File is sent to the input of file declustering module 12；
S3, the file declustering module 12 are parsed to the content of Hex files, according to the set form of Hex files, often
The secondary content for extracting 2 to 3 row Hex files with behavior unit obtains many sub- Hex files；
S4, the Big Dipper short message package module 13 are according to the protocol format of Beidou communication application, by multiple sub- Hex
Document encapsulation obtains the Beidou communication application message for upgrading in the telegraph text content field of Beidou communication application；
S5, the Big Dipper short message sending module 14 receive the north for being used to upgrade from Big Dipper short message package module 13
Bucket communication application message, and the Beidou communication application message for upgrading is exported to the input of Beidou satellite system 30；
S6, the Beidou satellite system 30 export Beidou communication application message or Beidou communication information for upgrading to north
The input for the communication module 21 that struggles against；
S7, the Beidou communication module 21 by Beidou communication application message or Beidou communication information for upgrading send to
The input of MCU control module 22；
S8, the MCU control module 22 are received after Beidou communication application message or Beidou communication information for upgrading,
Updated contents or Beidou communication content are first determined whether, if Beidou communication content, then the processing of user function task is given；
If updated contents, then the Beidou communication application message for upgrading is judged according to telegraph text content field, for not
Meet the Beidou communication application message for being used to upgrade that upgrading is required, MCU control module 22 is abandoned, and sends repeating transmission request
To system upgrade platform 10, for meeting the Beidou communication application message for being used to upgrade that upgrading is required, MCU control module 22 will
Beidou communication application packet storage for upgrading is in memory module 23, when MCU control module 22 receives updated contents knot
Bundle flag and when Hex file contents after re-grouping package are complete, the main program set MCU control module in MCU control module 22
Software upgrading flag bit in 22, main program restarts MCU control module 22 and enters IAP bootstrap, the main journey of MCU control module 22
The chip initiation module of sequence reads software upgrading flag bit first, judges whether Beidou subscriber machine 20 to be upgraded needs upgrading,
If need not upgrade, MCU control module 22 normally starts, and jumps to user function program, is performing Beidou subscriber machine 20 just
Normal service function；If necessary to upgrade, then IAP bootstrap enters upgrading task, reads and uses from Flash memory chip outside piece
In upgrading the communication information and by the address information in Hex files, content is write in the Flash inside MCU control module 22；
IAP bootstrap resets interrupt vector table initial address, removes upgrading flag bit, the pointer of MCU control module 22 is pointed to
Initial address, then the pointer of MCU control module 22 jump to initial address, perform new user program, complete upgrading task.
Whole step S8 is completed inside MCU control module 22, to having different task modules with difference in functionality come complete
Into the software according to MCU control module 22 is completed.
When the upgrading flag bit is that one of chip internal of MCU control module 22 is specifically used to judge device power,
The mark whether to be upgraded of software.
In order to prevent program staging error causes the pointer of MCU control module 22 to point to address from can not start user program, make
Into subscriber computer cisco unity malfunction, in IAP fault interrupt processing function, should reset interrupt vector table initial address is
Initial address before not upgrading, jumps to this address by the pointer of MCU control module 22 and performs original subscriber's program, and send the Big Dipper
Short message receipt is to system upgrade platform 10, report upgrading failure.
The problem of present invention solves Beidou subscriber machine remote software scaling difficulty, especially to unattended Big Dipper user
Machine, in the case of other no general information means of communication, the teleprogram liter of subscriber computer is realized using Beidou communication link
Level.
Claims (8)
1. the Beidou subscriber machine remote update system based on IAP technologies, it is characterised in that：Including system upgrade platform (10), treat
Upgrading Beidou subscriber machine (20), Beidou satellite system (30), the output end of the system upgrade platform (10) are exported for upgrading
Beidou communication application message, the Beidou communication application message for being used to upgrade transmitted to treating by Beidou satellite system (30)
The input of upgrading Beidou subscriber machine (20).
2. a kind of Beidou subscriber machine remote update system as claimed in claim 1 based on IAP technologies, it is characterised in that：Institute
Stating system upgrade platform (10) includes software translating module (11), file declustering module (12), Big Dipper short message package module
(13), Big Dipper short message sending module (14), wherein,
Software translating module (11), for software source code compiling generation Hex files to be upgraded, and by the Hex files
Send to the input of file declustering module (12)；
File declustering module (12), is parsed for the content to Hex files, according to the set form of Hex files, every time with
The content that behavior unit extracts 2 to 3 row Hex files obtains many sub- Hex files；
Big Dipper short message package module (13), it seals multiple sub- Hex files according to the protocol format of Beidou communication application
The Beidou communication application message for upgrading is obtained in the telegraph text content field of Beidou communication application；
Big Dipper short message sending module (14), for receiving the Big Dipper for being used to upgrade from Big Dipper short message package module (13)
Communication application message, and will be transmitted for the Beidou communication application message of upgrading by Beidou satellite system (30) to north to be upgraded
The input of bucket subscriber computer (20).
3. a kind of Beidou subscriber machine remote update system as claimed in claim 2 based on IAP technologies, it is characterised in that：Institute
Stating Beidou subscriber machine to be upgraded (20) includes Beidou communication module (21), MCU control module (22) and memory module (23),
Beidou communication module (21), for receiving the Beidou communication Shen for being used to upgrade from Big Dipper short message sending module (14)
Please message, and the Beidou communication application message for upgrading is sent to the input of MCU control module (22)；
MCU control module (22), the Content of Communication for extracting the Beidou communication application message for upgrading, according to Content of Communication
Form to message content judge, the message content of the telegraph text content field format requirement for meeting Beidou communication application, will
It is stored to memory module (23), is entered for not meeting the message content of telegraph text content field format requirement of Beidou communication application
Row is given up, and sends repeating transmission request to system upgrade platform (10).
4. a kind of Beidou subscriber machine remote update system as claimed in claim 3 based on IAP technologies, it is characterised in that：Institute
State the telegraph text content field of Beidou communication application includes frame head, command character, data length, totalframes, synchronous code, storage successively
Address, data type, data content, updated contents end mark, check code.
5. a kind of Beidou subscriber machine remote update system as claimed in claim 4 based on IAP technologies, it is characterised in that：Institute
Stating MCU control module (22) includes control chip, the model STM32 family chips of the control chip.
6. a kind of Beidou subscriber machine remote update system as claimed in claim 5 based on IAP technologies, it is characterised in that：Institute
It is the outer Flash memory chip of piece to state memory module (23).
7. a kind of upgrade method of the Beidou subscriber machine remote update system as claimed in claim 6 based on IAP technologies, it is special
Levy and be, comprise the following steps：
Enter IAP bootstrap on S1, MCU control module (22) after electricity；
Software source code compiling to be upgraded is generated Hex files by S2, the software translating module (11), and the Hex is literary
Part is sent to the input of file declustering module (12)；
S3, the file declustering module (12) are parsed to the content of Hex files, according to the set form of Hex files, every time
The content for extracting 2 to 3 row Hex files with behavior unit obtains many sub- Hex files；
S4, the Big Dipper short message package module (13) are according to the protocol format of Beidou communication application, by multiple sub- Hex texts
Part is encapsulated in the Beidou communication application message obtained in the telegraph text content field of Beidou communication application for upgrading；
S5, the Big Dipper short message sending module (14) receive the north for being used to upgrade from Big Dipper short message package module (13)
Bucket communication application message, and the Beidou communication application message for upgrading is exported to the input of Beidou satellite system (30)；
S6, the Beidou satellite system (30) export Beidou communication application message or Beidou communication information for upgrading to the Big Dipper
The input of communication module (21)；
S7, the Beidou communication module (21) by Beidou communication application message or Beidou communication information for upgrading send to
The input of MCU control module (22)；
S8, the MCU control module (22) are received after Beidou communication application message or Beidou communication information for upgrading, first
First judge it is updated contents or Beidou communication content, if Beidou communication content, then give the processing of user function task；Such as
Fruit is updated contents, then the Beidou communication application message for upgrading is judged according to telegraph text content field, for not being inconsistent
The Beidou communication application message for being used to upgrade that upgrading is required is closed, MCU control module (22) is abandoned, and sends repeating transmission request
To system upgrade platform (10), for meeting the Beidou communication application message for being used to upgrade that upgrading is required, MCU control module
(22) by for the Beidou communication application packet storage of upgrading in memory module (23), when MCU control module (22) is received
Updated contents end mark and when Hex file contents after re-grouping package are complete, the main program set in MCU control module (22)
Software upgrading flag bit in MCU control module (22), main program restarts MCU control module (22) and enters IAP bootstrap, complete
Into upgrading task.
8. a kind of upgrade method of the Beidou subscriber machine remote update system as claimed in claim 7 based on IAP technologies, it is special
Levy and be, the concrete operation step of the IAP bootstrap is as follows：
The chip initiation module of MCU control module (22) main program reads software upgrading flag bit first, judges north to be upgraded
Whether bucket subscriber computer (20) needs upgrading, if need not upgrade, and MCU control module (22) normally starts, and jumps to user's work(
Can program, the normal service function of execution Beidou subscriber machine (20)；If necessary to upgrade, then IAP bootstrap enters upgrading and appointed
Business, reads the communication information for upgrading and by the address information in Hex files, by content from Flash memory chip outside piece
Write in the internal Flash of MCU control module (22)；IAP bootstrap resets interrupt vector table initial address, removes and rises
Level flag bit, initial address is pointed to by MCU control module (22) pointer, and then MCU control module (22) pointer jumps to starting
Address, performs new user program, completes upgrading task.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108919303A (en) * | 2018-07-12 | 2018-11-30 | 中国船舶重工集团公司第七二四研究所 | A kind of signal source long-distance remote-control method and device based on Big Dipper short message |
| CN110457055A (en) * | 2019-07-29 | 2019-11-15 | 珠海市一微半导体有限公司 | A kind of firmware upgrade control method, system and controlling terminal towards fast charge agreement |
| CN111414176A (en) * | 2020-03-17 | 2020-07-14 | 上海辛格林纳新时达电机有限公司 | Program burning method, program burning device, electronic equipment and storage medium |
| CN114036080A (en) * | 2021-11-09 | 2022-02-11 | 许昌许继软件技术有限公司 | Method and device for upgrading program by using communication serial port of display terminal |
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| CN111414176A (en) * | 2020-03-17 | 2020-07-14 | 上海辛格林纳新时达电机有限公司 | Program burning method, program burning device, electronic equipment and storage medium |
| CN111414176B (en) * | 2020-03-17 | 2024-03-19 | 上海辛格林纳新时达电机有限公司 | Program burning method, device, electronic equipment and storage medium |
| CN114036080A (en) * | 2021-11-09 | 2022-02-11 | 许昌许继软件技术有限公司 | Method and device for upgrading program by using communication serial port of display terminal |
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