CN106775778A - Embedded program exploitation Program updates recognition methods and system - Google Patents
Embedded program exploitation Program updates recognition methods and system Download PDFInfo
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- CN106775778A CN106775778A CN201710065661.6A CN201710065661A CN106775778A CN 106775778 A CN106775778 A CN 106775778A CN 201710065661 A CN201710065661 A CN 201710065661A CN 106775778 A CN106775778 A CN 106775778A
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- 238000000034 method Methods 0.000 title claims abstract description 23
- 238000012795 verification Methods 0.000 claims abstract description 66
- 238000004590 computer program Methods 0.000 claims description 42
- 238000004891 communication Methods 0.000 claims description 7
- 125000004122 cyclic group Chemical group 0.000 claims 1
- 238000000151 deposition Methods 0.000 abstract description 2
- 230000006870 function Effects 0.000 description 6
- 230000004048 modification Effects 0.000 description 6
- 238000012986 modification Methods 0.000 description 5
- 238000001514 detection method Methods 0.000 description 3
- 238000007726 management method Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000004422 calculation algorithm Methods 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 241001269238 Data Species 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F8/00—Arrangements for software engineering
- G06F8/70—Software maintenance or management
- G06F8/71—Version control; Configuration management
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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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Abstract
Recognition methods and system are updated the invention discloses embedded program exploitation Program, it carries out one cycle verification calculating in the automatic whole programs to depositing in program storage of director demon initial operating stage, and one group of sequence number obtaining will be verified communicatively be sent to host computer, because the variation of program can cause the change of sequence number, therefore by the situation of change of sequence number, you can realize a kind of new method of procedure identification.
Description
Technical field
Recognition methods and system are updated the present invention relates to a kind of embedded program exploitation Program.
Background technology
The Version Control of embedded development Program and identification typically by Read Controller chip software version number
What form was realized.Generally, need to add a software version number to program after programming or modification, source program has been compiled
Controller chip is downloaded to after, by host computer and the version number of the signal procedure reading program of controller chip, thus may be used
Obtain modification of program and version management information.
Using such scheme by Read Controller chip Program version number by host computer, and compareed according to version number
Table look-up and obtain modification of program information.But the method still suffers from certain limitation：
1. software version number needs artificial manual modification, if after forgetting change version number or change after programmer's change program
Version number with other people change version number repeat；
2. maloperation of the programmer to software program, increases or lost part program；
3. the small change of program, but be not enough to change program version number.
Problems can cause to be failed in the way of software version number recognizer.If there is the device of above mentioned problem
There is exception using scene in engineering, because whether can not effectively sentence using when standardization program or program are changed to make to device
It is disconnected, very big difficulty can be caused to mistake investigation work.
The content of the invention
The purpose of the present invention is exactly to solve the above problems, there is provided a kind of embedded program exploitation Program updates identification
Method and system, it carries out one cycle in the automatic whole programs to depositing in program storage of director demon initial operating stage
Verify and calculate, and the one group of sequence number for obtaining will be verified and be communicatively sent to host computer, because the variation of program can make
Into the change of sequence number, therefore the situation of change for passing through sequence number, you can realize a kind of new method of procedure identification.
Embedded program exploitation Program updates recognition methods, comprises the following steps：
Step (1)：The program storage of controller is received and stores the compiled computer program for passing through；Computer journey
The initial address of sequence storage is exactly the first address in program storage corresponding address space；
Step (2)：Computer program brings into operation, and carries out initial configuration to computer program first；
Step (3)：Computer program to program storage storage proceeds by CRC from initial address, obtains
To one group of verification sequence number；
Step (4)：The verification sequence that controller obtains the program version number of current computer program and CRC
Row number is sent collectively to host computer；
Step (5)：The program version number and verification sequence number that host computer sends controller are prestored with host computer
Program version number and verification sequence number be compared；Whether determining program changes.
The specific steps of the step (5) include：
Step (51)：First determine whether the program version number that the program version number that controller sends is prestored with host computer
It is whether consistent, step (52) is entered if consistent；Inconsistent, representation program changes；
Step (52)：Judge the verification sequence number that the verification sequence number that controller sends is prestored with host computer
Cause, representation program does not change if consistent；Representation program changes if inconsistent.
The program version number that the host computer is prestored is that program is compiled successfully first, and controller is uploaded to host computer
Version number；
The verification sequence number that the host computer is prestored is that program is compiled successfully first, and controller is to compiling successful journey
Sequence carries out the verification sequence number that CRC first is obtained and is uploaded to host computer.
The step (2) carries out initial configuration to program I/O mouthfuls, interrupt vector；
The step (3) uses look-up table mode, the program that program storage is deposited is proceeded by from initial address and is followed
Ring redundancy check.
Step (4) controller is sent to host computer by sequence number is verified by can or modbus communication protocols.
Embedded program exploitation Program updates identifying system, including：The controller and host computer for communicating with one another；
The controller includes：
Computer program receiving unit：The program storage of controller is received and stores the compiled computer journey for passing through
Sequence；The initial address of computer program storage is exactly the first address in program storage corresponding address space；
Computer program running unit：Computer program brings into operation, and carries out initial configuration to computer program first；
Cyclic-redundancy-check unit：It is superfluous that the computer program deposited to program storage proceeds by circulation from initial address
Remaining verification, obtains one group of verification sequence number；
Transmitting element：The verification sequence that controller obtains the program version number of current computer program and CRC
Row number is sent collectively to host computer；
The host computer includes：
Receiving unit：Receive program version number and verification sequence number that controller sends；
Comparing unit：The program that the program version number and verification sequence number that controller is sent are prestored with host computer
Version number and verification sequence number are compared；Whether determining program changes.
The comparing unit includes：
Program version comparison module：First determine whether what program version number that controller sends and host computer were prestored
Whether program version number is consistent, and verification sequence comparison module is entered if consistent；Inconsistent, representation program changes；
Verification sequence comparison module：Judge the verification that the verification sequence number that controller sends is prestored with host computer
Sequence number is consistent, and representation program does not change if consistent；Representation program changes if inconsistent.
The program version number that the host computer is prestored is that program is compiled successfully first, and controller is uploaded to host computer
Version number；
The verification sequence number that the host computer is prestored is that program is compiled successfully first, and controller is to compiling successful journey
Sequence carries out the verification sequence number that CRC first is obtained and is uploaded to host computer.
The computer program running unit carries out initial configuration to program I/O mouthfuls, interrupt vector；
The cyclic-redundancy-check unit uses look-up table mode, and the program to program storage storage is opened from initial address
Beginning is circulated redundancy check.
The transmitting element is sent to host computer by sequence number is verified by can or modbus communication protocols.
Beneficial effects of the present invention：
Prior art can only manually change software version number realization, while can only be with numeral sides such as V1.00 or V2.10
Formula represents that being changed for small program also can not effectively identify.
The present invention is circulated verification to whole program's memory space in program initial operating stage, and any change of program all may be used
Changed by the sequence number for verifying generation and expressed.
This invention is aided with edition control method based on software version number, can be more accurate and careful to embedded system
Program version control effectively.
Brief description of the drawings
Fig. 1 is main flow chart of the invention；
Fig. 2 is the inner function module figure of controller；
Fig. 3 is the inner function module figure of host computer；
Fig. 4 is the inner function module figure of the comparison module of host computer.
Specific embodiment
The invention will be further described with embodiment below in conjunction with the accompanying drawings.
As shown in figure 1, embedded program exploitation Program updates recognition methods, comprise the following steps：
Step (1)：The program storage of controller is received and stores the compiled computer program for passing through；Computer journey
The initial address of sequence storage is exactly the first address in program storage corresponding address space；
Step (2)：Computer program brings into operation, and carries out initial configuration to computer program first；
Step (3)：Computer program to program storage storage proceeds by CRC from initial address, obtains
To one group of verification sequence number；
Step (4)：The verification sequence that controller obtains the program version number of current computer program and CRC
Row number is sent collectively to host computer；
Step (5)：The program version number and verification sequence number that host computer sends controller are prestored with host computer
Program version number and verification sequence number be compared；Whether determining program changes.
The specific steps of the step (5) include：
Step (51)：First determine whether the program version number that the program version number that controller sends is prestored with host computer
It is whether consistent, step (52) is entered if consistent；Inconsistent, representation program changes；
Step (52)：Judge the verification sequence number that the verification sequence number that controller sends is prestored with host computer
Cause, representation program does not change if consistent；Representation program changes if inconsistent.
As shown in Fig. 2 embedded program exploitation Program updates identifying system, including：The controller that communicates with one another and upper
Position machine；
The controller includes：
Computer program receiving unit：The program storage of controller is received and stores the compiled computer journey for passing through
Sequence；The initial address of computer program storage is exactly the first address in program storage corresponding address space；
Computer program running unit：Computer program brings into operation, and carries out initial configuration to computer program first；
Cyclic-redundancy-check unit：It is superfluous that the computer program deposited to program storage proceeds by circulation from initial address
Remaining verification, obtains one group of verification sequence number；
Transmitting element：The verification sequence that controller obtains the program version number of current computer program and CRC
Row number is sent collectively to host computer；
As shown in figure 3, the host computer includes：
Receiving unit：Receive program version number and verification sequence number that controller sends；
Comparing unit：The program that the program version number and verification sequence number that controller is sent are prestored with host computer
Version number and verification sequence number are compared；Whether determining program changes.
As shown in figure 4, the comparing unit includes：
Program version comparison module：First determine whether what program version number that controller sends and host computer were prestored
Whether program version number is consistent, and verification sequence comparison module is entered if consistent；Inconsistent, representation program changes；
Verification sequence comparison module：Judge the verification that the verification sequence number that controller sends is prestored with host computer
Sequence number is consistent, and representation program does not change if consistent；Representation program changes if inconsistent.
In order to elaborate the present invention, several item datas treatment concept used is introduced first.
(1) program storage of controller chip：
According to memory and program storage, the former is used to deposit program operation the memory dominant fraction of controller chip
Intermediate processing data, can with program run and write at any time or read data memory content, when system power failure, full data
Portion can lose；The latter is used to deposit the application program and some data constants for varying without of embedded system, can only read journey
Sequence instruction makes system operation, and can not be rewritten again, and after system power failure, program will not lose.
(2) CRC：
CRC is a kind of data transfer error detection function, mainly for detection of or verification data in transmitting procedure
The mistake being likely to occur.Sender is circulated redundancy check, and the check code that will be calculated to the data for needing to send first
It is attached to behind data frame, recipient performs similar algorithm after receiving data, and by judging whether check code unanimously determines to connect
Whether the data frame for receiving changes.
(3) look-up table：
Look-up table is that one kind of CRC implements algorithm, and the result of calculation for shifting XOR is made one by it
Table, last check code is obtained by the form tabled look-up to calculating datacycle.
More than this programme Main Basiss several conceptions of species, to the error detection function of data frame in reference communications, novelty
CRC mode is used for the treatment to program storage area Program.
After electricity brings into operation in the program, using look-up table above-mentioned, the starting of program is deposited from program storage
Address starts to be circulated whole program's memory space redundancy check, and specific practice is exactly the byte-by-byte since initial address
Displacement XOR is carried out to program segment to calculate, and is completed until whole programs are calculated, thus can be to one group of 4 verification sequence number of byte.
In communication functions, such as host computer calls this to order, you can this sequence number is uploaded into host computer.Due to whole
Program's memory space is involved in verification, and the change of any byte data can all change the sequence number that verification is produced in program, therefore
Whether can be changed by the change determining program of sequence number；And data frame adds check value same when being verified different from data transfer
Step transmission, now only needs the valid data of 4 byte sequence numbers, data transmit-receive programming can be made simple, beneficial to operation.
The Version Management Software that host computer is installed is responsible for being analyzed upload information, being judged.Control will be mainly collected in
The verification sequence number and software version number of device processed are compared one by one with the version information of each version program of preservation in its database
Right, such as upload information is consistent with the version number of a certain version program and sequence number, then prove that the program run in controller is this
Version program；As version number is consistent but sequence number changes, it was demonstrated that not more new version number after programmer's modification program；As version number with
Sequence number is new content, it was demonstrated that is Unknown Edition program, can link up whether programmer creates new program version.New version
This program can be added manually in the database of management software, in database update interface list entries number and software version number,
Click on and preserve button.The software is only supported to be manually entered at present, and the establishment and renewal of database initial data all rely on this
The method of kind.
By verification sequence management method and Version Management Software, can be more efficient have to embedded program version
Effect management, control.
Embedded program exploitation Program updates recognition methods, comprises the following steps：
Step (1)：After the completion of program compiling, program code is downloaded to the program storage of controller chip by downloader
Device, the initial address of download program is exactly the first address in program storage corresponding address space.
Step (2)：Program is brought into operation, and necessary initial configuration is carried out to program；
Step (3)：Using look-up table mode, it is superfluous that the program deposited to program storage area proceeds by circulation from initial address
Remaining verification, obtains verification sequence number；Because the program memory address space of controller used thereby chip is $ 4000- $ FFFF, and
Program takes up room<16K, therefore consider that the data only to the address spaces of $ 4000- $ 8000 are circulated redundancy check.
Step (4)：In signal procedure, sequence number and software version number are sent to by can or modbus communication protocols
Host computer.
Step (5)：Whether the Version Management Software analysis of host computer uploads information and date storehouse information consistent, and according to point
Analysis result is judged.
Although above-mentioned be described with reference to accompanying drawing to specific embodiment of the invention, not to present invention protection model
The limitation enclosed, one of ordinary skill in the art should be understood that on the basis of technical scheme those skilled in the art are not
Need the various modifications made by paying creative work or deformation still within protection scope of the present invention.
Claims (10)
1. embedded program exploitation Program updates recognition methods, it is characterized in that, comprise the following steps：
Step (1)：The program storage of controller is received and stores the compiled computer program for passing through；Computer program is deposited
The initial address of storage is exactly the first address in program storage corresponding address space；
Step (2)：Computer program brings into operation, and carries out initial configuration to computer program first；
Step (3)：Computer program to program storage storage proceeds by CRC from initial address, obtains one
Group verification sequence number；
Step (4)：The verification sequence number that controller obtains the program version number of current computer program and CRC
It is sent collectively to host computer；
Step (5)：The journey that the program version number and verification sequence number that host computer sends controller are prestored with host computer
Sequence version number and verification sequence number are compared；Whether determining program changes.
2. embedded program exploitation Program as claimed in claim 1 updates recognition methods, it is characterized in that, the step (5)
Specific steps include：
Step (51)：First determine whether whether is program version number that the program version number that controller sends prestores with host computer
Unanimously, step (52) is entered if consistent；Inconsistent, representation program changes；
Step (52)：Judge that the verification sequence number that controller sends is consistent with the verification sequence number that host computer is prestored, if
Consistent then representation program does not change；Representation program changes if inconsistent.
3. embedded program exploitation Program as claimed in claim 1 updates recognition methods, it is characterized in that,
The program version number that the host computer is prestored is that program is compiled successfully first, and controller is uploaded to the version of host computer
Number；
The verification sequence number that the host computer is prestored is that program is compiled successfully first, and controller enters to compiling successful program
Row CRC first is obtained and is uploaded to the verification sequence number of host computer.
4. embedded program exploitation Program as claimed in claim 1 updates recognition methods, it is characterized in that,
The step (2) carries out initial configuration to program I/O mouthfuls, interrupt vector；
Step (4) controller is sent to host computer by sequence number is verified by can or modbus communication protocols.
5. embedded program exploitation Program as claimed in claim 1 updates recognition methods, it is characterized in that,
The step (3) uses look-up table mode, and it is superfluous that the program deposited to program storage proceeds by circulation from initial address
Remaining verification.
6. embedded program exploitation Program updates identifying system, it is characterized in that, including：The controller that communicates with one another and upper
Machine；
The controller includes：
Computer program receiving unit：The program storage of controller is received and stores the compiled computer program for passing through；
The initial address of computer program storage is exactly the first address in program storage corresponding address space；
Computer program running unit：Computer program brings into operation, and carries out initial configuration to computer program first；
Cyclic-redundancy-check unit：Computer program to program storage storage proceeds by cyclic redundancy school from initial address
Test, obtain one group of verification sequence number；
Transmitting element：The verification sequence number that controller obtains the program version number of current computer program and CRC
It is sent collectively to host computer；
The host computer includes：
Receiving unit：Receive program version number and verification sequence number that controller sends；
Comparing unit：The program version that the program version number and verification sequence number that controller is sent are prestored with host computer
Number and verification sequence number be compared；Whether determining program changes.
7. system as claimed in claim 6, it is characterized in that, the comparing unit includes：
Program version comparison module：First determine whether the program that the program version number that controller sends is prestored with host computer
Whether version number is consistent, and verification sequence comparison module is entered if consistent；Inconsistent, representation program changes；
Verification sequence comparison module：Judge the verification sequence that the verification sequence number that controller sends is prestored with host computer
Number consistent, representation program does not change if consistent；Representation program changes if inconsistent.
8. system as claimed in claim 6, it is characterized in that, the program version number that the host computer is prestored be program first
Compile successfully, controller is uploaded to the version number of host computer；
The verification sequence number that the host computer is prestored is that program is compiled successfully first, and controller enters to compiling successful program
Row CRC first is obtained and is uploaded to the verification sequence number of host computer.
9. system as claimed in claim 6, it is characterized in that, the computer program running unit to program I/O mouthfuls, interrupt to
Amount carries out initial configuration；
The cyclic-redundancy-check unit uses look-up table mode, and the program to program storage storage is entered since initial address
Row CRC.
10. system as claimed in claim 6, it is characterized in that, the transmitting element will verify sequence number and pass through can or modbus
Communication protocol is sent to host computer.
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| CN201710065661.6A CN106775778B (en) | 2017-02-06 | 2017-02-06 | Program updating identification method and system in embedded program development |
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| CN201710065661.6A CN106775778B (en) | 2017-02-06 | 2017-02-06 | Program updating identification method and system in embedded program development |
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| CN111752547A (en) * | 2020-06-30 | 2020-10-09 | 武汉虹信技术服务有限责任公司 | Method for modifying Java serialized object serial number and application thereof |
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| CN109858233A (en) * | 2018-12-21 | 2019-06-07 | 惠州Tcl移动通信有限公司 | The mutual recognition methods of chip, device, storage medium and mobile terminal |
| CN111752547A (en) * | 2020-06-30 | 2020-10-09 | 武汉虹信技术服务有限责任公司 | Method for modifying Java serialized object serial number and application thereof |
| CN112597450A (en) * | 2020-12-22 | 2021-04-02 | 深圳市道通科技股份有限公司 | Programmable chip program detection and storage method and programmable chip |
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| Publication number | Publication date |
|---|---|
| CN106775778B (en) | 2021-03-16 |
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