CN103838591B - A kind of multiple single chip microcomputer upgrade method and device based on universal serial bus - Google Patents
A kind of multiple single chip microcomputer upgrade method and device based on universal serial bus Download PDFInfo
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- CN103838591B CN103838591B CN201210473844.9A CN201210473844A CN103838591B CN 103838591 B CN103838591 B CN 103838591B CN 201210473844 A CN201210473844 A CN 201210473844A CN 103838591 B CN103838591 B CN 103838591B
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Abstract
The present invention provides a kind of multiple single chip microcomputer upgrade method and device based on universal serial bus, belong to microcontroller online upgrading technical field.Method includes：Main equipment is interconnected from equipment using universal serial bus with each microcontroller；Main equipment needs the microcontroller upgraded from device upgrade order to each microcontroller from equipment transmission；It needs the microcontroller upgraded to send from equipment to main equipment to require to carry out password authentification order；The microcontroller that main equipment upgrades to needs sends reply code from equipment；Need the microcontroller upgraded from device authentication reply code；The microcontroller that main equipment upgrades to needs sends upgrade procedure from equipment；It needs the microcontroller upgraded to receive upgrade procedure from equipment, completes upgrading.Technical solution of the present invention overcomes the shortcomings that craft one by one is multiple Intelligent Single-Chip Based device upgrades different application program; escalation process does not need host scm simultaneously; reduce hardware complexity, and password authentication procedure is added in upgrading part, realizes the safety protection to microcontroller.
Description
Technical field
The present invention relates to microcontroller online upgrading technical field more particularly to a kind of multiple single chip microcomputer liters based on universal serial bus
Grade method and device.
Background technology
The electronic intelligence equipment designed based on microcontroller at present is increasingly widely used in wired home, monolithic
Owner will realize various smart machine functions by running the application program of its storage inside.Single chip application in smart machine
Program has been arrived in user hand and cannot have been changed again by carry out programming, program generally before manufacture.It is set using intelligence in user's purchase
In standby, usual producer will also be upgraded and be safeguarded to product, to correct in smart machine present in singlechip application programs
Defect needs to increase smart machine new function, therefore it is online to need wired home user to carry out singlechip application programs
Upgrading.
Existing SCM program online upgrading technology usually has the shortcomings that poor universality, technical risk are high, and intelligence
Domestic consumer can only carry out by hand one by one when upgrading to multiple SCM programs in more equipment.Publication date
One kind is proposed to multiple microcontrollers for the Chinese patent " a method of upgrading multiple SCM programs " on March 17th, 2010
The technology of program on-line upgrading is carried out, which realizes the upgrade maintenance to single microcontroller or multiple microcontrollers, utilize master
Serial port connecting wire between microcontroller and outer computer by upgrade procedure download to host scm or each from microcontroller.But
Being the technology has certain limitation, specific manifestation as follows：
1, the object upgraded is multiple microcontrollers in a smart machine, cannot disposably be carried out to multiple smart machines
Upgrading；
2, there must be host scm in smart machine；
Safety verification is not carried out when 3, upgrading.
Invention content
The present invention provides a kind of multiple single chip microcomputer online upgrading method and device, to overcome versatility of the existing technology
Difference, technical risk are high, can only be by hand one by one multiple smart machines upgrades no safety when different application programs, upgrading
The shortcomings that verification, and while upgrading do not need host scm, reduce hardware complexity.
For this purpose, the present invention uses following technical scheme：
A kind of multiple single chip microcomputer upgrade method based on universal serial bus, main equipment and each microcontroller are serial from being used between equipment
Bus interconnection, the method includes：
Step 1：The main equipment sends the microcontroller for needing to upgrade to each microcontroller from equipment and is ordered from device upgrade
It enables；
Step 2：The microcontroller upgraded is needed to send updating apparatus identification information, and requirement pair from equipment to the main equipment
The main equipment carries out password authentification；
Step 3：The main equipment sends corresponding reply code to the microcontroller for needing to upgrade from equipment；
Step 4：It is described to need the microcontroller upgraded from reply code described in device authentication, if the reply code is just
Really, being sent to the main equipment allows upgrade command；
Step 5：The main equipment sends corresponding upgrade procedure to the microcontroller for needing to upgrade from equipment；
Step 6：The microcontroller for needing to upgrade receives the upgrade procedure from equipment and completes upgrading.
Further, further include before the step 2：Each microcontroller judges this from equipment according to the upgrade command
Whether machine this time needs to upgrade, and the microcontroller that need not upgrade upgrades from equipment without this, continues waiting for coming from next time
The upgrade command of the universal serial bus.
Further, the step 3 specifically includes：
The main equipment according to the preset microcontroller for needing to upgrade of the updating apparatus identification information, the main equipment from
Device password generates reply code of the microcontroller for needing to upgrade from equipment；
The main equipment sends the reply code to the microcontroller for needing to upgrade from equipment.
Further, the main equipment sends corresponding reply code, tool to the microcontroller for needing to upgrade from equipment
Body includes：
The main equipment according to the preset microcontroller for needing to upgrade of the updating apparatus identification information, the main equipment from
Device password generates reply code of the microcontroller for needing to upgrade from equipment；
The main equipment sends the reply code to the microcontroller for needing to upgrade from equipment.
Further, described to need the microcontroller that upgrades to include from reply code described in device authentication：
It is described that the microcontroller that upgrades is needed to receive the reply code from equipment, according to the updating apparatus identification information with
The machine password for needing the microcontroller upgraded to be stored from equipment generates verification password；
Whether the microcontroller for needing to upgrade is consistent from the equipment verification password and the reply code；If
The verification password and the reply code are inconsistent, then the reply code mistake, described to need the microcontroller that upgrades from setting
It is standby to terminate this time to upgrade, continue waiting for the upgrade command next time from the universal serial bus；If the verification password and institute
It is consistent to state reply code, then the reply code is correct.
Further, the main equipment sends corresponding upgrade procedure packet to the microcontroller for needing to upgrade from equipment
It includes：
The main equipment selects liter of the microcontroller for needing to upgrade from equipment according to the updating apparatus identification information
Grade program；
The main equipment sends the upgrade procedure to the microcontroller for needing to upgrade from equipment.
The present invention also provides a kind of multiple single chip microcomputer update device based on universal serial bus, described device include：Main equipment,
Each microcontroller is interconnected from equipment room using the universal serial bus from equipment, universal serial bus, the main equipment with each microcontroller；
The main equipment includes：Main command transmission unit, password generation unit, procedure selection unit；Each microcontroller
Include from equipment：From command sending unit, password authentication unit, upgrade unit；
The main command transmission unit is ordered for sending the microcontroller for needing to upgrade to the universal serial bus from device upgrade
It enables；
It is described from command sending unit, for sending updating apparatus identification information to the universal serial bus and requiring to described
Main equipment carries out password authentification order；
The password generation unit needs the microcontroller that upgrades from the corresponding reply code of equipment for generating with described,
The reply code is sent to the universal serial bus；
The password authentication unit, for receiving and verifying the reply code from the universal serial bus, if institute
It is correct to state reply code, being sent to the universal serial bus allows upgrade command；
Described program selecting unit, for receiving the permission upgrade command from the universal serial bus, selection and the need
The microcontroller to be upgraded sends the upgrade procedure from the corresponding upgrade procedure of equipment, to the universal serial bus；
The upgrade unit, for receiving the upgrade procedure from the universal serial bus, completion to this microcontroller from
The upgrading of equipment.
Further, each microcontroller from equipment further include judging unit, for receiving the main command transmission unit
The upgrade command, judge this microcontroller from equipment this time whether need to upgrade, the microcontroller that need not upgrade from equipment not
This time upgrade, continues waiting for the upgrade command next time from the universal serial bus.
Further, the password generation unit is used to generate needs the microcontroller upgraded to be answered from equipment is corresponding with described
Answering password includes：
The password generation unit receives the updating apparatus identification information, and itself and the password generation unit are preset
The microcontroller that upgrades of needs from device password combined treatment, generate corresponding reply code.
Further, the password authentication unit is for receiving and verifying the reply code from the universal serial bus
Including：
The password authentication unit receives the reply code, is tested with the password according to the updating apparatus identification information
The machine password of unit storage is demonstrate,proved, verification password is generated；
If the verification password and the reply code are inconsistent, the reply code mistake is described to need to upgrade
Microcontroller from device end this time upgrade, continue waiting for the upgrade command next time from the universal serial bus；If described
Verification password is consistent with the reply code, then the reply code is correct.
Further, the selection of described program selecting unit needs the microcontroller upgraded to upgrade journey from equipment is corresponding with described
Sequence includes：Described program selecting unit selects described to need the microcontroller upgraded from setting according to the updating apparatus identification information
Standby upgrade procedure.
Technical scheme of the present invention shares universal serial bus using multiple single chip microcomputer, main equipment is served as by gadget, to multiple
Microcontroller is upgraded from equipment, and escalation process further includes that microcontroller carries out password authentification from equipment to main equipment.The present invention carries
The technical solution gone out can disposably upgrade multiple equipment, it is not limited to an equipment, and overcome existing list
Piece machine program on-line upgrading technology usually has the shortcomings that poor universality, technical risk are high.Compared with prior art, skill of the present invention
The benefit of art scheme includes：
1, proving program is added in upgrading part, it is whether legal to verify this upgrading, if to allow to upgrade, realize pair
The safety of microcontroller is protected；
2, universal serial bus is shared using multiple single chip microcomputer, escalation process does not need host scm, reduces hardware complexity, gram
Taken to be the shortcomings that multiple smart machines upgrade different application programs by hand one by one.
Description of the drawings
Fig. 1 is a kind of multiple single chip microcomputer upgrade method flow based on universal serial bus that the specific embodiment of the invention one provides
Figure；
Fig. 2 is a kind of multiple single chip microcomputer update device signal based on universal serial bus that the specific embodiment of the invention two provides
Figure.
Specific implementation mode
To make the object, technical solutions and advantages of the present invention clearer, below in conjunction with attached drawing to embodiment party of the present invention
Formula is described in further detail.
The present invention, which is realized, upgrades multiple equipment into line program, and only needs the monolithic upgraded comprising one in each equipment
Machine program is connected using universal serial bus between multiple equipment.Universal serial bus can select 422 buses, 485 buses.422 buses use
Full-duplex mode, is a kind of point-to-multipoint connection, and 485 buses use half-duplex operation, is a kind of multiple spot to more
The connection of point, universal serial bus uses 485 buses in various embodiments of the present invention.Upgrading scheme uses master-slave mode, needs to upgrade
Each microcontroller is from equipment.When needing upgrading, master will be used as on the equipment interconnection to universal serial bus for having upgrade procedure
Equipment, main equipment can be the various equipment such as PC machine, server, mobile phone, and various embodiments of the present invention main equipment selects a PC machine,
The equipment turns 485 interfaces by USB and is connected in 485 buses.
Embodiment one
Referring to Fig. 1, a kind of multiple single chip microcomputer upgrade method based on universal serial bus is illustrated, main equipment PC machine is to from equipment 1
Upgrade method be as follows：
Step 101：PC machine is by universal serial bus to respectively being sent from equipment from 1 upgrade command of equipment；
Step 102：Respectively from equipment according to 1 upgrade command of slave equipment of reception, judge whether oneself is this time upgraded, from
Equipment 1 is determined as, executes step 103, other to be judged as NO from equipment, without this upgrading, continues waiting for PC next time
The upgrade command that machine is sent；
Step 103：The machine updating apparatus identification information password authentification order is sent from equipment 1 to PC machine, and is required to PC
Machine carries out password authentification, and device type, program version number and challenge code, equipment class may be used in wherein updating apparatus identification information
Type for PC machine to microcontroller from the identification of equipment, program version number is used for as PC machine selection and microcontroller from the corresponding liter of equipment
Grade program, challenge code are used for microcontroller from the password authentification of equipment；
Step 104：PC machine processing generates reply code from the updating apparatus identification information of equipment 1, is sent to from equipment 1
Reply code, reply code by updating apparatus identification information device type and challenge code, PC machine it is preset from 1 password of equipment
Combined treatment obtains, and combination is device type+challenge code+from 1 password of equipment；
Step 105：Verification password is generated from equipment 1, compares verification password and whether reply code is consistent, if unanimously,
Reply code is correct, then password authentification passes through, and executes step 107, and otherwise password authentification fails, and step 106 is executed, wherein verifying
Password is generated by challenge code, device type and the machine password combination that is stored from equipment 1 in the machine updating apparatus identification information,
Combination is device type+challenge code+the machine password；
Step 106：PC machine terminates this time to upgrade, continues waiting for PC machine hair next time to failing from this upgrading of equipment 1
The upgrade command sent；
Step 107：Being sent from equipment 1 to PC machine allows upgrade command；
Step 108：PC machine sends corresponding upgrade procedure according to from the updating apparatus identification information of equipment 1 to from equipment 1,
The selection of wherein upgrade procedure is the device type and program version number according to updating apparatus identification information, is stored from PC machine each
Microcontroller from device upgrade program, selection with from the corresponding upgrade procedure of equipment 1.
Step 109：Upgrade from equipment 1 and complete, sends to upgrade from equipment 1 to PC machine and complete instruction.
PC machine to other microcontrollers from the upgrade method of equipment, it is similar with to the upgrade method from equipment 1, it is no longer superfluous here
It states.
The present embodiment, which realizes, disposably upgrades multiple equipment, without being one by one multiple smart machines by hand
Upgrade different application programs, password authentication procedure is added in escalation process, it is whether legal to verify this upgrading, if to permit
Perhaps upgrade, realize the safety protection to microcontroller, overcoming existing SCM program online upgrading technology usually has
The high disadvantage of poor universality, technical risk, and other microcontrollers need not be upgraded using host scm, it reduces
Hardware complexity.
Embodiment two
Referring to Fig. 2, a kind of multiple single chip microcomputer update device schematic diagram based on universal serial bus.The device includes：It is main equipment, each
From equipment, universal serial bus.It is respectively from equipment 1, from equipment 2 ... from equipment N from equipment.Main equipment and each microcontroller are from equipment room
It is interconnected using universal serial bus.
Main equipment includes：Main command transmission unit 11, password generation unit 12, procedure selection unit 13；Each monolithic
Machine is from equipment, for from equipment 1, including：From command sending unit 21, password authentication unit 22, upgrade unit 23；
When main equipment PC machine from equipment 1 to upgrading, each unit work in device is as follows：
1, main command transmission unit 11 is sent for serially bus from 1 upgrade command of equipment.
2, it from command sending unit 21, sends the machine updating apparatus identification information for serially bus and requires to PC machine
Carry out password authentification order.
3, password generation unit 12, for generating with from the corresponding reply code of equipment 1, serially bus transmission response is close
Code.
4, password authentication unit 22, for receiving and verifying the reply code from universal serial bus.Its verification process is：It is close
Code authentication unit 22 firstly generates verification password, then compares verification password and whether reply code is consistent, if verification password
Consistent with reply code, reply code is correct, and serially bus, which is sent, allows upgrade command, if verification password and reply code
Inconsistent, reply code mistake terminates this time to upgrade, continues waiting for the upgrade command from universal serial bus next time from equipment 1.
5, procedure selection unit 13 selects corresponding to from equipment 1 for receiving the permission upgrade command from universal serial bus
Upgrade procedure, serially bus send upgrade procedure；
6, the upgrade unit 23, for receiving the upgrade procedure from universal serial bus, completion is to this microcontroller from equipment 1
Upgrading.
7, further include judging unit 24 from equipment 1, the upgrade command for receiving main command transmission unit 11 judges the machine
This time whether need to upgrade, the microcontroller that need not upgrade upgrades from equipment without this, continues waiting for coming from institute next time
State the upgrade command of universal serial bus.When PC machine from equipment 1 to upgrading, except other each microcontrollers in addition to equipment 1 are from setting
The standby upgrade command continued waiting for next time from the universal serial bus.
Above-mentioned updating apparatus identification information preferably uses device type, program version number and challenge code.Wherein equipment class
Type for PC machine to microcontroller from the identification of equipment, program version number is used for as PC machine selection and microcontroller from the corresponding liter of equipment
Grade program, challenge code are used for microcontroller from the password authentification of equipment.
12 corresponding reply code of password generation unit is device type in the updating apparatus identification information that will be received, challenge
Code, and password generation unit 12 is preset handles from 1 password combination of equipment, combination be device type+challenge code+
From 1 password of equipment.
The verification password of password authentication unit 22 be according to device type, challenge code in updating apparatus identification information, and it is close
What the machine password combination that code authentication unit 22 stores was handled, combination is device type+challenge code+the machine password.
Procedure selection unit 13 is according to updating apparatus identification information when selection is with from 1 corresponding upgrade procedure of equipment
Device type and program version number, each microcontroller stored from PC machine select corresponding with from equipment 1 from device upgrade program
Upgrade procedure.
In the apparatus, PC machine is similar to the escalation process from equipment 1 with PC machine to other escalation process from equipment,
Which is not described herein again.
Multiple single chip microcomputer update device provided in this embodiment based on universal serial bus increases compared with common update device
Password generation unit 12, password authentication unit 22, it is to verify this upgrading whether legal, if to allow to upgrade, realize pair
The safety of microcontroller is protected, and multiple single chip microcomputer shares universal serial bus, and escalation process does not need host scm, reduces hardware
Complexity, realizing disposably to upgrade multiple equipment, without being that multiple smart machines upgrade not by hand one by one
Same application program.
One of ordinary skill in the art will appreciate that realizing that all or part of step of above-described embodiment can pass through hardware
It completes, relevant hardware can also be instructed to complete by program, the program can be stored in a kind of computer-readable
In storage medium, storage medium mentioned above can be read-only memory, disk or CD etc..
The foregoing is merely presently preferred embodiments of the present invention, is not intended to limit the invention, it is all the present invention spirit and
Within principle, any modification, equivalent replacement, improvement and so on should all be included in the protection scope of the present invention.
Claims (8)
1. a kind of multiple single chip microcomputer upgrade method based on universal serial bus, main equipment and each microcontroller are serial total from being used between equipment
Line interconnects, which is characterized in that the method includes：
Step 1：The main equipment needs the microcontroller upgraded from device upgrade order to each microcontroller from equipment transmission；
Step 2：It needs the microcontroller upgraded to send updating apparatus identification information from equipment to the main equipment, and requires to described
Main equipment carries out password authentification；
Step 3：The main equipment sends corresponding reply code to the microcontroller for needing to upgrade from equipment；
Step 4：It is described to need the microcontroller upgraded from reply code described in device authentication, if the reply code is correct, to
The main equipment, which is sent, allows upgrade command；
Step 5：The main equipment sends corresponding upgrade procedure to the microcontroller for needing to upgrade from equipment；
Step 6：The microcontroller for needing to upgrade receives the upgrade procedure from equipment and completes upgrading；
Wherein, the step 3 specifically includes：
The main equipment is according to the preset microcontroller for needing to upgrade of the updating apparatus identification information, the main equipment from equipment
Password generates reply code of the microcontroller for needing to upgrade from equipment；
The main equipment sends the reply code to the microcontroller for needing to upgrade from equipment.
2. the multiple single chip microcomputer upgrade method according to claim 1 based on universal serial bus, which is characterized in that the step 2
Further include before：Each microcontroller from equipment according to the upgrade command judge the machine this time whether need to upgrade, do not need
The microcontroller of upgrading upgrades from equipment without this, continues waiting for the upgrade command next time from the universal serial bus.
3. the multiple single chip microcomputer upgrade method according to claim 1 based on universal serial bus, which is characterized in that described to need to rise
Grade microcontroller include from reply code described in device authentication：
It is described that the microcontroller that upgrades is needed to receive the reply code from equipment, according to the updating apparatus identification information with it is described
The machine password for needing the microcontroller upgraded to be stored from equipment generates verification password；
Whether the microcontroller for needing to upgrade is consistent from the equipment verification password and the reply code；If described
It is inconsistent to verify password and the reply code, then the reply code mistake, the microcontroller that the needs upgrade is from equipment knot
Beam this time upgrades, and continues waiting for the upgrade command next time from the universal serial bus；If the verification password is answered with described
It is consistent to answer password, then the reply code is correct.
4. the multiple single chip microcomputer upgrade method according to claim 1 based on universal serial bus, which is characterized in that the main equipment
Sending corresponding upgrade procedure from equipment to the microcontroller that the needs upgrade includes：
The main equipment selects upgrading journey of the microcontroller for needing to upgrade from equipment according to the updating apparatus identification information
Sequence；
The main equipment sends the upgrade procedure to the microcontroller for needing to upgrade from equipment.
5. a kind of multiple single chip microcomputer update device based on universal serial bus, which is characterized in that
Described device includes：Main equipment, each microcontroller are from equipment, universal serial bus, and the main equipment and each microcontroller are from setting
It is interconnected using the universal serial bus between standby；
The main equipment includes：Main command transmission unit, password generation unit, procedure selection unit；Each microcontroller is from setting
It is standby to include：From command sending unit, password authentication unit, upgrade unit；
The main command transmission unit, for sending the microcontroller for needing to upgrade from device upgrade order to the universal serial bus；
It is described from command sending unit, for sending updating apparatus identification information to the universal serial bus and requiring to set the master
It is standby to carry out password authentification order；
The password generation unit needs the microcontroller that upgrades from the corresponding reply code of equipment, to institute for generating with described
It states universal serial bus and sends the reply code；
The password authentication unit, for receiving and verifying the reply code from the universal serial bus, if described answer
It is correct to answer password, being sent to the universal serial bus allows upgrade command；
Described program selecting unit, for receiving the permission upgrade command from the universal serial bus, selection needs to rise with described
The microcontroller of grade sends the upgrade procedure from the corresponding upgrade procedure of equipment, to the universal serial bus；
The upgrade unit, for receiving the upgrade procedure from the universal serial bus, completion is to this microcontroller from equipment
Upgrading；
Wherein, the password generation unit is used to generate with the microcontroller that upgrades of needs from the corresponding reply code packet of equipment
It includes：
The password generation unit receives the updating apparatus identification information, and by itself and the preset need of the password generation unit
The microcontroller to be upgraded generates corresponding reply code from device password combined treatment.
6. a kind of multiple single chip microcomputer update device based on universal serial bus according to claim 5, which is characterized in that described each
Microcontroller further includes judging unit from equipment, and the upgrade command for receiving the main command transmission unit judges this list
Whether piece machine this time needs to upgrade from equipment, and the microcontroller that need not upgrade upgrades from equipment without this, continues waiting for down
Upgrade command once from the universal serial bus.
7. the multiple single chip microcomputer update device according to claim 5 based on universal serial bus, which is characterized in that the password is tested
Card unit is used to receive and verify the reply code from the universal serial bus：
The password authentication unit receives the reply code, according to the updating apparatus identification information and the password authentification list
The machine password of member storage generates verification password；
If the verification password and the reply code are inconsistent, the reply code mistake, the list for needing to upgrade
Piece machine this time upgrades from device end, continues waiting for the upgrade command next time from the universal serial bus；If the verification
Password is consistent with the reply code, then the reply code is correct.
8. the multiple single chip microcomputer update device according to claim 5 based on universal serial bus, which is characterized in that described program is selected
Select Unit selection needs the microcontroller that upgrades to include from the corresponding upgrade procedure of equipment with described：Described program selecting unit according to
The updating apparatus identification information selects upgrade procedure of the microcontroller for needing to upgrade from equipment.
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| CN105005486B (en) * | 2015-06-25 | 2018-11-09 | 许继集团有限公司 | A kind of smart substation equipment program on-line upgrading method |
| CN106020869B (en) * | 2016-05-09 | 2019-05-31 | 广州康盛生物科技有限公司 | The method of the CAN bus based multiple single-chip microcontroller node procedures of selectively burning |
| CN107092508A (en) * | 2017-04-18 | 2017-08-25 | 广州市升龙灯光设备有限公司 | A kind of stage lamp upgrade method, device and system based on mobile phone app |
| CN108334373A (en) * | 2017-10-16 | 2018-07-27 | 深圳市路畅科技股份有限公司 | A kind of method and system of more MCU upgradings |
| CN108415721B (en) * | 2018-03-20 | 2021-07-27 | 山东比特智能科技股份有限公司 | Node equipment program upgrading method and related device |
| CN112583766A (en) * | 2019-09-29 | 2021-03-30 | 富士施乐实业发展（中国）有限公司 | Remote interaction method, device and system for security information |
| CN112732299A (en) * | 2021-01-04 | 2021-04-30 | 北京无线电测量研究所 | Method and system for updating program on line |
| CN114281392A (en) * | 2022-03-04 | 2022-04-05 | 季华实验室 | Serial port upgrading method and system for multi-MCU slave station |
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