CN106776308A - A kind of electronic product malfunction test method and system based on Uboot - Google Patents
A kind of electronic product malfunction test method and system based on Uboot Download PDFInfo
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- CN106776308A CN106776308A CN201611109852.XA CN201611109852A CN106776308A CN 106776308 A CN106776308 A CN 106776308A CN 201611109852 A CN201611109852 A CN 201611109852A CN 106776308 A CN106776308 A CN 106776308A
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- key data
- electronic equipment
- uboot
- electronic
- command
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F11/00—Error detection; Error correction; Monitoring
- G06F11/36—Preventing errors by testing or debugging software
- G06F11/362—Software debugging
- G06F11/366—Software debugging using diagnostics
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F21/00—Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
- G06F21/30—Authentication, i.e. establishing the identity or authorisation of security principals
- G06F21/45—Structures or tools for the administration of authentication
- G06F21/46—Structures or tools for the administration of authentication by designing passwords or checking the strength of passwords
Abstract
The present invention relates to electronic product maintenance field, more particularly to a kind of electronic product malfunction test method and system based on Uboot.A kind of electronic failure adjustment method based on Uboot, comprises the following steps：Electronic equipment obtains command checksum file of the storage in external storage equipment by USB interface or SD card interface；The command checksum file includes first key data；Compare the second key data and first key data；If the second key data is consistent with first key data, into command mode；Order of the electronic equipment by USB interface or SD card interface in external storage equipment obtains malfunction test information；The electronic equipment is debugged according to malfunction test information to electronic equipment.Particularly removed for electronic equipment serial ports electronic equipment provide fast, safety malfunction test method.
Description
Technical field
The present invention relates to electronic product maintenance field, more particularly to a kind of electronic product malfunction test side based on Uboot
Method and system.
Background technology
Consumer electronics product is a big application field of embedded system, with people's daily life, production and work
Consumer electronics product using combining more and more tightr, also the hardware and software security of this kind of product is proposed higher
It is required that.
Embedded software has generally comprised guiding ROMPaq (bootloader), three portions of operating system and application program
Point, wherein bootloader programs are responsible for the various work(such as the startup of whole system, the loading of operating system and software data upgrading
Can, it is vital in whole software systems to change part.Uboot is presently the most a kind of bootloader programs of main flow, fits
Conjunction is used in the chip of the systems such as ARM, MIPS, can be used for loading Linux, Android, ECOS and VmWorks etc. various
Operating system.
Uboot can be operated in both of which, normal startup mode and order operational mode.Under normal startup mode,
Uboot is responsible for initializing software and hardware running environment, then loads operating system, and the control of CPU finally is handed into operation system
System, for final product, Uboot is operated under this quasi-mode.Under command mode, Uboot is responsible for receiving defeated from serial ports
The order that enters simultaneously calls corresponding function to perform, and can inquire about and change the data of ROM and RAM regionals in system, this
Way brings great convenience to exploitation debugging.It is in system electrification that Uboot is operated in normal mode or command mode
After initialization, determined by the result for reading serial data, if not getting any data from serial ports in a period of time,
Acquiescence enters normal startup mode, if reading data in this period, Uboot enters command mode, waits user
Input order is performed.
Because Uboot can be operated in both of which, so typically also may be used for the electronic equipment for consumption using Uboot
To there is a both of which, a kind of construction machine for being to support exploitation debugging mode, for the equipment of this pattern, user or exploitation
Person can carry out various operations by serial ports to equipment.Another kind is the formal machine in product pattern, and serial ports may be
Removed from hardware, user or developer cannot carry out any operation by Uboot under this pattern.This pattern for
The software security and secure user data of protection equipment have certain benefit, but but the production debugging to the later stage safeguards band
Carry out very big inconvenience.
Command mode and order input are entered using serial communication so that the exploitation debugging and the maintenance ten in later stage of early stage
Divide inconvenience.On the one hand command mode is first manually entered every time when exploitation debugging, be then input into corresponding instruction ability
Operation program prints Debugging message, can reduce development efficiency.On the other hand, if machine for being sold to behind market
Break down, it is also difficult to repair, because most of electronic equipment for consumption no longer retains serial ports, correlation cannot be carried out
Fault inquiry and debugging.
The method of existing entrance command mode is excessively simple, acquisition to software and user data and distorts ten partial volumes
Easily.Due to just can easily enter command mode only by serial communication, the operation without doing any proof of identity, so
As long as being familiar with the developer of corresponding development platform software configuration, systems soft ware that can be very easily to equipment is distorted,
It is also called brush machine into others' systems soft ware.On the other hand, it is also possible to easily read user data and be analyzed and distort.Cause
Uboot under this this pattern is weaker for the protection of software and user data, and security is poor.
The Chinese invention patent of Application No. 201210436671.3 discloses a kind of high-efficiency embedded type system debug method,
But what the patent was solved be when debugging a New function during researching and developing new product or solving a new bug failure, it is necessary to
Again flash, burning flash are torn open, the problem of flash is welded；Technical characteristic disclosed in the patent does not solve existing being based on
The product of Uboot is not easy to the problem of later product debugging maintenance and the product based on Uboot because removing serial ports in debugging
The safety problem brought in maintenance process.
The content of the invention
The technical problems to be solved by the invention are：The present invention provides a kind of electronic product malfunction test based on Uboot
Method and system, solve the problems, such as the existing product based on Uboot because remove serial ports be not easy to later product debugging maintenance with
And the safety problem that the product based on Uboot brings during debugging maintenance.
In order to solve the above-mentioned technical problem, the technical solution adopted by the present invention is：A kind of electronic equipment event based on Uboot
Barrier adjustment method, comprises the following steps：
Command checksum file of the storage in external storage equipment is obtained by USB interface or SD card interface；The order school
Testing file includes first key data；Be stored with the second key data in the electronic equipment；
Compare the second key data and first key data；
If the second key data is consistent with first key data, into command mode；
Order by USB interface or SD card interface in external storage equipment obtains malfunction test information；
Electronic equipment is debugged according to malfunction test information；
If the second key data is inconsistent with first key data, enter next step verification；The next step verification bag
Include following steps：
Obtain the 3rd key data；3rd key data is input into by serial ports by user and obtained；
Compare the 3rd key data and the second key data；
If the 3rd key data is consistent with the second key data, into command mode；
The malfunction test information of user input is obtained by serial ports；
If the 3rd key data is inconsistent with the second key data, into normal operation mode.
The beneficial effects of the present invention are：A kind of electronic failure adjustment method based on Uboot of the present invention,
The characteristics of according to USB interface or SD card interface is equipped with the electronic equipment based on Uboot, the present invention is proposed using existing
The method that USB interface or SD card interface enter command mode, is so increased without extra interface, improves electronic equipment debugging
Convenience, is that post facility maintenance and debugging offers convenience；Especially for the formal electronic equipment in product pattern, serial ports quilt
Malfunction test method is provided in the case of removal；And the data transmission bauds of USB or SD passages is passed higher than the data of serial ports passage
Defeated speed, and the key data being stored in advance in external storage equipment or event can be obtained by USB passages or SD card passage
Barrier debug command, realizes the malfunction test of automation, compared to tradition by way of AccessPort needs manual command to interact,
Improve the efficiency of debugging maintenance.
Present invention further introduces safe checking method, by storing key data in the electronic device, entering order mould
Need, by safety check, only to obtain the data matched with key data and just allow access into command mode before formula, enter to advance
The malfunction test of one step, this mode ensure that the security of electronic equipment, is prevented effectively from systems soft ware and is maliciously tampered.
Brief description of the drawings
Fig. 1 is a kind of electronic failure adjustment method flow chart based on Uboot of the specific embodiment of the invention；
Fig. 2 is a kind of electronic failure debugging system structure chart based on Uboot of the specific embodiment of the invention；
Label declaration：
1st, the first acquisition module；2nd, the first comparing module；3rd, first enters module；4th, the second acquisition module；5th, mould is debugged
Block；6th, the 3rd acquisition module；7th, malfunction test module；8th, second enters module；9th, the 4th acquisition module；10th, the 3rd enters mould
Block.
Specific embodiment
To describe technology contents of the invention, the objects and the effects in detail, it is explained below in conjunction with implementation method.
The design of most critical of the present invention is：Enter command mode after key data carries out safety verification, electronics sets
The standby order by USB interface or SD card interface in external storage equipment obtains malfunction test information, is special electronic equipment
It is not that the electronic equipment for removing serial ports provides quick, safe malfunction test method.
Fig. 1 to Fig. 2 is refer to, the present invention provides a kind of electronic failure adjustment method based on Uboot, including following
Step：
Command checksum file of the storage in external storage equipment is obtained by USB interface or SD card interface；The order school
Testing file includes first key data；Be stored with the second key data in the electronic equipment；
Compare the second key data and first key data；
If the second key data is consistent with first key data, into command mode；
Order by USB interface or SD card interface in external storage equipment obtains malfunction test information；
Electronic equipment is debugged according to malfunction test information；
If the second key data is inconsistent with first key data, enter next step verification；The next step verification bag
Include following steps：
Obtain the 3rd key data；3rd key data is input into by serial ports by user and obtained；
Compare the 3rd key data and the second key data；
If the 3rd key data is consistent with the second key data, into command mode；
The malfunction test information of user input is obtained by serial ports；
If the 3rd key data is inconsistent with the second key data, into normal operation mode.
The above-mentioned electronic failure adjustment method based on Uboot, according to being equipped with USB in the electronic equipment based on Uboot
The characteristics of interface or SD card interface, the present invention proposes the side for entering command mode using existing USB interface or SD card interface
Method, is so increased without extra interface, improves the convenience of electronic equipment debugging, is that post facility maintenance and debugging brings just
Profit；Especially for the formal electronic equipment in product pattern, serial ports provides malfunction test method in the case of being removed；And
The data transmission bauds of USB or SD passages is higher than the data transmission bauds of serial ports passage, and can by USB passages or SD card passage
To obtain key data or the malfunction test order being stored in advance in external storage equipment, the failure for realizing automation is adjusted
Examination, compared to tradition by way of AccessPort needs manual command to interact, improves the efficiency of debugging maintenance.
Present invention further introduces safe checking method, by storing key data in the electronic device, entering order mould
Need, by safety check, only to obtain the data matched with key data and just allow access into command mode before formula, enter to advance
The malfunction test of one step, this mode ensure that the security of electronic equipment, is prevented effectively from systems soft ware and is maliciously tampered.
Still retain the mode that Debugging message is obtained from serial ports in this method；Equipment for retaining serial ports provides failure and adjusts
The channel of examination.Because the detection of serial ports is different from USB interface or the detection of SD card interface, serial ports detection must postpone a period of time,
User input command checksum data are waited, if data input, then command checksum authorisation process, therefore preferential detection is carried out
The method of USB or SD card interface, if USB or SD card interface detect the key data of command checksum file, and by verifying, then
The step of command mode, skip detection serial ports can be directly entered, this method effectively saves detection and checking time.And it is every
The three group key data that platform electronic equipment is used all are unique, prevent certain certain key data leakage of equipment and cause
All there is risk in the software and running environment of all machines, so as to improve the security of system.
Further, be stored with the second key data in the encryption chip of the electronic equipment.
Seen from the above description, the key data of equipment is stored in encryption chip, and master chip is from USB interface, SD card
Or after serial ports obtains command checksum file, checking treatment will be carried out in the data is activation in this document to encryption chip, verify
Result return again to master chip, master chip is allowed to judge whether to enter command mode.In this implementation pattern, all safe phases
The operation of pass is all processed in encryption chip, and specificity is strong, and Information Security is high, but also increases the cost of equipment.
Further, the master chip OTP region of the electronic equipment is stored with the second key data.
Seen from the above description, had at present increasing master chip itself with certain capacity OTP region and
Special hardware enciphering and deciphering module, then in this case, the key data of equipment can be stored in OTP region.Software passes through
The data in the key data and command checksum file of OTP region are read, being sent to hardware enciphering and deciphering module carries out checking treatment.This
In the pattern of kind, all and safety-related operations are all processed in master chip, in order to further improve the security of data,
Key must be preserved in OTP region in the way of encrypting, and the program only needs to use existing master chip, without extra addition
Chip, so cost will not be increased.
Further, be stored with the second key data in the ROM of the electronic equipment.
Seen from the above description, suitable for the equipment that master chip is general-purpose chip, key data is with privately owned for the above method
Data form be stored encrypted in the ROM of system, and the operation of used in checking procedure encryption and decryption is realized by pure software.This
Kind of mode is most cost-saving, and by decrypting and upsets the storage format of key data, can improve the safety of key data
Property.
Further, a kind of electronic failure debugging system based on Uboot, including:
First acquisition module 1：For obtaining storage in the order school of external storage equipment by USB interface or SD card interface
Test file；The command checksum file includes first key data；Be stored with the second key data in the electronic equipment；
First comparing module 2：For comparing the second key data and first key data；
First enters module 3：For when the second key data is consistent with first key data, then into command mode；
Second acquisition module 4：Event is obtained for the order by USB interface or SD card interface in external storage equipment
Barrier Debugging message；
Debugging module 5：Electronic equipment is debugged according to malfunction test information；
3rd acquisition module 6：For obtaining the 3rd key data；3rd key data is input into by user by serial ports
Obtain；
Second comparing module 7：For comparing the 3rd key data and the second key data；
Second enters module 8：If consistent with the second key data for the 3rd key data, into command mode；
4th acquisition module 9：Malfunction test information for obtaining user input by serial ports；
3rd enters module 10：If inconsistent with the second key data for the 3rd key data, enter normal operation
Pattern.
Embodiment 1
Fig. 1 is refer to, a kind of electronic failure adjustment method based on Uboot is comprised the following steps：
S1：Electronic equipment obtains command checksum file of the storage in external storage equipment by USB interface or SD card interface；
The command checksum file includes first key data；Be stored with the second key data in the electronic equipment；
S2：Compare the second key data and first key data；
Judge whether the second key data is consistent with first key data consistent；
S31：If the second key data is consistent with first key data；Then enter command mode；
S311：Order by USB interface or SD card interface in external storage equipment obtains malfunction test information；
S4：Electronic equipment is debugged according to malfunction test information.
Embodiment 2
Fig. 1 is refer to, a kind of electronic failure adjustment method based on Uboot is comprised the following steps：
S1：Electronic equipment obtains command checksum file of the storage in external storage equipment by USB interface or SD card interface；
The command checksum file includes first key data；Be stored with the second key data in the electronic equipment；
S2：Compare the second key data and first key data；Judge that the second key data is consistent with first key data
It is whether consistent；
S32：If the second key data is inconsistent with first key data；Then enter next step to verify；
S321：Obtain the 3rd key data；3rd key data is input into by serial ports by user and obtained；
S322：Compare the 3rd key data and the second key data；
Judge whether the 3rd key data is consistent with the second key data；
S3221：If the 3rd key data is consistent with the second key data；Then enter command mode；
S32211：Malfunction test information is obtained by the order that serial ports is input into according to user；
S4：Electronic equipment is debugged according to malfunction test information.
Embodiment 3
S1：Electronic equipment obtains command checksum file of the storage in external storage equipment by USB interface or SD card interface；
The command checksum file includes first key data；Be stored with the second key data in the electronic equipment；
S2：Compare the second key data and first key data；Judge that the second key data is consistent with first key data
It is whether consistent；
S32：If the second key data is inconsistent with first key data；Then enter next step to verify；
S321：Obtain the 3rd key data；3rd key data is input into by serial ports by user and obtained；
S322：Compare the 3rd key data and the second key data；
Judge whether the 3rd key data is consistent with the second key data；
If when the key datas of S3222 the 3rd and inconsistent the second key data, into normal operation mode；
S4：Electronic equipment is debugged according to malfunction test information.
In sum, a kind of electronic failure adjustment method based on Uboot of the present invention, according to being based on
The characteristics of being equipped with USB interface or SD card interface in the electronic equipment of Uboot, the present invention propose using existing USB interface or
SD card interface enters the method for command mode, is so increased without extra interface, improves the convenience of electronic equipment debugging, is
Post facility maintenance and debugging offers convenience；Especially for the formal electronic equipment in product pattern, the removed feelings of serial ports
Malfunction test method is provided under condition；And the data transmission bauds of USB or SD passages is higher than the data transmission bauds of serial ports passage, and
The key data or malfunction test life being stored in advance in external storage equipment can be obtained by USB passages or SD card passage
Order, realizes the malfunction test of automation, compared to tradition by way of AccessPort needs manual command to interact, improves tune
Try the efficiency safeguarded.
Present invention further introduces safe checking method, by storing key data in the electronic device, entering order mould
Need, by safety check, only to obtain the data matched with key data and just allow access into command mode before formula, enter to advance
The malfunction test of one step, this mode ensure that the security of electronic equipment, is prevented effectively from systems soft ware and is maliciously tampered.
Still retain the mode that Debugging message is obtained from serial ports in this method；Equipment for retaining serial ports provides failure and adjusts
The channel of examination.Because the detection of serial ports is different from USB interface or the detection of SD card interface, serial ports detection must postpone a period of time,
User input command checksum data are waited, if data input, then command checksum authorisation process, therefore preferential detection is carried out
The method of USB or SD card interface, if USB or SD card interface detect the key data of command checksum file, and by verifying, then
The step of command mode, skip detection serial ports can be directly entered, this method effectively saves detection and checking time.
Embodiments of the invention are the foregoing is only, the scope of the claims of the invention is not thereby limited, it is every to utilize this hair
The equivalents that bright description is made, or the technical field of correlation is directly or indirectly used in, similarly it is included in this hair
In bright scope of patent protection.
Claims (8)
1. a kind of electronic failure adjustment method based on Uboot, it is characterised in that comprise the following steps：
Command checksum file of the storage in external storage equipment is obtained by USB interface or SD card interface；The command checksum text
Part includes first key data；Be stored with the second key data in the electronic equipment；
Compare the second key data and first key data；
If the second key data is consistent with first key data, into command mode；
Order by USB interface or SD card interface in external storage equipment obtains malfunction test information；
Electronic equipment is debugged according to malfunction test information；
If the second key data is inconsistent with first key data, enter next step verification；Next step verification include with
Lower step：
Obtain the 3rd key data；3rd key data is input into by serial ports by user and obtained；
Compare the 3rd key data and the second key data；
If the 3rd key data is consistent with the second key data, into command mode；
The malfunction test information of user input is obtained by serial ports；
If the 3rd key data is inconsistent with the second key data, into normal operation mode.
2. the electronic failure adjustment method based on Uboot according to claim 1, it is characterised in that described second
Key data is stored in the encryption chip of electronic equipment.
3. the electronic failure adjustment method based on Uboot according to claim 1, it is characterised in that described second
Key data is stored in the master chip OTP region of electronic equipment.
4. the electronic failure adjustment method based on Uboot according to claim 1, it is characterised in that described second
Key data is stored in the ROM of electronic equipment.
5. a kind of electronic failure debugging system based on Uboot, it is characterised in that including：
First acquisition module：For obtaining command checksum text of the storage in external storage equipment by USB interface or SD card interface
Part；The command checksum file includes first key data；Be stored with the second key data in the electronic equipment；
First comparing module：For comparing the second key data and first key data；
First enters module：For when the second key data is consistent with first key data, then into command mode；
Second acquisition module：Failure is obtained for the order by USB interface or SD card interface in external storage equipment to adjust
Examination information；
Debugging module：Electronic equipment is debugged according to malfunction test information；
3rd acquisition module：For obtaining the 3rd key data；3rd key data is input into by serial ports by user and obtained；
Second comparing module：For comparing the 3rd key data and the second key data；
Second enters module：If consistent with the second key data for the 3rd key data, into command mode；
4th acquisition module：Malfunction test information for obtaining user input by serial ports；
3rd enters module：If inconsistent with the second key data for the 3rd key data, into normal operation mode.
6. the electronic failure debugging system based on Uboot according to claim 5, it is characterised in that described second
Key data is stored in the encryption chip of electronic equipment.
7. the electronic failure debugging system based on Uboot according to claim 5, it is characterised in that described second
Key data is stored in the master chip OTP region of electronic equipment.
8. the electronic failure debugging system based on Uboot according to claim 5, it is characterised in that described second
Key data is stored in the ROM of electronic equipment.
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| CN108319530A (en) * | 2018-02-06 | 2018-07-24 | 合肥联宝信息技术有限公司 | Diagnostic method, device, terminal and the medium of computer hardware |
| CN109522703A (en) * | 2018-11-20 | 2019-03-26 | 艾体威尔电子技术(北京)有限公司 | A kind of payment terminal console authorization open method |
| CN109522703B (en) * | 2018-11-20 | 2021-09-10 | 艾体威尔电子技术(北京)有限公司 | Authorization opening method for payment terminal console |
| CN109684216A (en) * | 2018-12-25 | 2019-04-26 | 郑州云海信息技术有限公司 | A kind of commissioning device and electronic equipment |
| CN111694704B (en) * | 2019-03-12 | 2023-10-10 | 杭州海康威视数字技术股份有限公司 | Debug information output method, device, electronic equipment and storage medium |
| CN111694704A (en) * | 2019-03-12 | 2020-09-22 | 杭州海康威视数字技术股份有限公司 | Debugging information output method and device, electronic equipment and storage medium |
| CN110764966B (en) * | 2019-09-12 | 2023-07-18 | 潍柴动力股份有限公司 | Self-adaptive method and system for working mode of ECU safety monitoring system |
| CN110764966A (en) * | 2019-09-12 | 2020-02-07 | 潍柴动力股份有限公司 | Self-adaptive method and system for ECU safety monitoring system working mode |
| CN110688663A (en) * | 2019-09-23 | 2020-01-14 | 深圳市网心科技有限公司 | Execution command protection method and device, android device and storage medium |
| CN111177732B (en) * | 2019-12-23 | 2022-11-11 | 杭州宇泛智能科技有限公司 | System debugging mode control method and system and electronic equipment |
| CN111177732A (en) * | 2019-12-23 | 2020-05-19 | 杭州宇泛智能科技有限公司 | System debugging mode control method and system and electronic equipment |
| WO2021203266A1 (en) * | 2020-04-08 | 2021-10-14 | Arris Enterprises Llc | Intelligent upgrade to a debug load operation for an electronic device |
| TWI818221B (en) * | 2020-12-31 | 2023-10-11 | 新唐科技股份有限公司 | Chip and method capable of authenticating off-chip debug firmware program and debug user |
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