CN105912356B - A kind of optical module firmware program on-line upgrading method for supporting version rollback - Google Patents
A kind of optical module firmware program on-line upgrading method for supporting version rollback Download PDFInfo
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- CN105912356B CN105912356B CN201610199791.4A CN201610199791A CN105912356B CN 105912356 B CN105912356 B CN 105912356B CN 201610199791 A CN201610199791 A CN 201610199791A CN 105912356 B CN105912356 B CN 105912356B
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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
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
- H04L41/08—Configuration management of networks or network elements
- H04L41/0803—Configuration setting
- H04L41/0813—Configuration setting characterised by the conditions triggering a change of settings
- H04L41/082—Configuration setting characterised by the conditions triggering a change of settings the condition being updates or upgrades of network functionality
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Abstract
The present invention relates to a kind of optical module firmware program on-line upgrading methods, comprising: step 1, activation upgrading mark, into upgrade mode;Step 2, upgrade procedure command parameter is received;Step 3, upgrade procedure data are received, upgrade procedure data are written to corresponding application partition after verification is correct;Step 4, the upgrade procedure data for being written to corresponding application partition are verified, verifies correct rear beginning trial operation upgrade procedure;Step 5, application program updating is completed, and after retaining related application upgrade information according to result of trial operation, exits upgrade mode.Outside online upgrading non-interrupting service of the present invention in addition to solving the problem of optical module, using special design, support various communication interfaces, it supports the firmware of bigger size of code, and firmware version is supported to return back to the function of upgrading preceding version, while applying also for the MCU online upgradings of 8051 series.
Description
Technical field
The present invention relates to a kind of upgrading of optical communication equipment and maintaining methods, and in particular to a kind of optical mode in optical communication field
The firmware program on-line upgrading method of block, the method can realize firmware upgrade in optical module operation, firmware version supported to return
Move back, it is during upgrading will not interrupting service.
Background technique
Optical module is widely applied in optical communication industry at present, with the improvement of technique, the miniaturization of size, function
Diversification, maintainability require more and more important.In practical applications, after optical module is opened in engineering, if desired
Individual performance indicators of optical module are adjusted, or repair the firmware program defect of optical module, then the online upgrading function of firmware program
It is essential.There are three types of modes for optical module firmware program upgrading generally in use: first is that upgrading is recalled, by recalling module,
Factory is upgraded after opening shell using professional tool, the method interrupting service, and cost and cost are very big;Second is that online interrupt upgrading,
This method can be realized online upgrading, but understand interrupting service, and client is caused to lose;Third is that the online liter of non-interrupting service
Grade, this non-interrupting service realize seamless upgrade, not will cause client's loss.Current some domestic and international MCU manufacturers provide
MCU firmware program at application upgrade technology (IAP), these upgrade technique majority existing defects are on the one hand big to upgrade file
Small, the communication interface of upgrading, it is inconsiderate whether upgrading will cause client traffic interruption;On the other hand, there are MCU upgradings to fail
The problem of module firmware can not restore afterwards;These can cause unpredictable risk to operator.And for 8051 series
Flash memory is smaller in the piece of MCU, MCU, and there are file sizes and Interface limits for online upgrading, and tradition upgrade method can not solve at present
Certainly support upgrading Backward Function.
Summary of the invention
In order to solve the above-mentioned technical problems, the present invention provides a kind of optical module firmware program on-line upgrading methods, comprising:
Step 1, activation upgrading mark, into upgrade mode;
Step 2, upgrade procedure command parameter is received, according to currently running application partition and the application for needing to upgrade
Program sectioning judges whether to need to switch over currently running application partition, so that currently running application program point
Avoid the application partition for needing to upgrade in area;
Step 3, upgrade procedure data are received, and every frame data are verified, by upgrade procedure number after verification is correct
According to being written to corresponding application partition;
Step 4, the upgrade procedure data for being written to corresponding application partition are verified, verifies correct rear beginning
The trial operation upgrade procedure;If trial operation success, setting upgrade successfully mark, otherwise system enters rollback state, switching
The subregion of the application program run originally before to upgrading, realizes system rollback;
Step 5, application program updating is completed, and after retaining related application upgrade information according to result of trial operation, is exited
Upgrade mode.
In the above-mentioned technical solutions, optical module internal processes memory block divides are as follows: the interruption variable range of application program launching,
Multiple application areas, interrupt vector backup area and system parameter conservation zone.
In the above-mentioned technical solutions, the area bootloader is not provided in optical module internal processes memory block.
In the above-mentioned technical solutions, the upgrade procedure command parameter includes following one or more: need to upgrade answers
With program area, upgrade file size, upgrade procedure version, program interrupt vector table size, upgrading frame sum, the data field of every frame
Size, the CRC standard of use, the total CRC check of file and.
In the above-mentioned technical solutions, it is respectively provided in the realization function of each key function module of the upgrade procedure related
Its corresponding key mark variable is only just set to OK state when the functional module correctly executes, otherwise set by key marking variable
Corresponding error codes are set to, if all key mark variables are all OK states in the time set in trial operation, then it represents that
Trial operation success.
In the above-mentioned technical solutions, described program upgrade information includes following one or more: executing the application journey of upgrading
Sequence region, version before upgrading, version after upgrading, related upgrade step state.
In the above-mentioned technical solutions, the upgrade step state includes: upgrading state of activation, is transmitting upgrading data shape
State, data end of transmission wait acknowledgement state, upgrading to complete, and subregion jumps trial operation state, trial operation completion upgrades successfully shape
The non-programming program state of state, subregion.
The present invention achieves following technical effect:
Outside online upgrading non-interrupting service of the present invention in addition to solving the problem of optical module, designed using special,
It supports various communication interfaces, supports the firmware of bigger size of code, and firmware version is supported to return back to the function of upgrading preceding version.This
Kind upgrade method is also applied for the MCU online upgradings of 8051 series.
Detailed description of the invention
Fig. 1 is partition holding of the present invention and traditional subregion contrast schematic diagram;
Fig. 2 is upgrading flow diagram of the invention;
Fig. 3 powers on loading procedure schematic diagram for of the invention;
Fig. 4 is the schematic diagram of change partitions process in program operation;
Fig. 5 is the schematic diagram for whether needing subregion to switch when upgrading;
Interrupt vector and program operation information when Fig. 6 is change partitions protect schematic diagram.
Specific embodiment
Understand for the ease of those of ordinary skill in the art and implement the present invention, with reference to the accompanying drawing and specific embodiment
The present invention is described in further detail.
In order to achieve the above objectives, the present invention provides the optical module firmware of non-interrupting service a kind of in application upgrade method,
Optical module internal processes store five regions of Division: the interruption variable range of application program launching, multiple application area (figures
The area application program A and the area application program B are illustrated only in 1), interrupt vector backup area and system parameter conservation zone.It is general to support
The conventional method method of version rollback upgrading is usually point three regions: bootloader, the area application program A and application program B
The comparison in area, specific partitioning scenario is as shown in Figure 1.Here the area bootloader in traditional partitioned mode supports complete MCU
Starting and initialization, the area application program A and the area application program B are respectively the application program for storing different editions.In the present invention point
Qu Zhong, the program that the interruption variable range of application program launching only provides the area application program A or the area application program B that MCU is powered on enter
Mouth jumps and interrupts variable mappings, and partition size is far smaller than the size of bootloader, and interrupt vector backup area is same to apply journey
The same size of interruption variable range of sequence starting, system parameter conservation zone occupy general 512 bytes.Partitioned mode of the invention
Under, due to without making the area application program A and the area application program B can be remote with the space occupied to Bootrom distribution memory space
It is taken up space much larger than traditional subregion.
The upgrade method specifically comprises the following steps, as shown in Figure 2:
Step 1, activation upgrading: activation upgrading mark, into upgrade mode;
The step 1 specifically includes, and MCU in normal work, receives activation upgrade command, starts upgrade mode.Into
When entering upgrade mode, currently running application program is still able to normal work.The activation command can pass through wired or nothing
Gauze network mode receives, and can trigger by application triggers or by entity or virtual key.
Step 2, change partitions: whether need to switch the subregion of application program before upgrading;
The step 2 specifically includes, and receives first frame upgrade procedure command parameter, which includes answering of being upgraded
With program area type, upgrade file size, version, program interrupt vector table size, upgrading frame is total, and the data field of every frame is big
It is small, the CRC standard of use, the total CRC check of file and etc. information;When MCU receives the command parameter, following operation is realized:
Judge that upgrade procedure is to update which application area: needing the journey in the more area new application A or the area application program B
Sequence;Judge that currently running application program is the program in that area: i.e. currently running to be the program in the area application program A or answer
With the program in the area program B;Being decided whether according to the target partition of currently running application partition and upgrading will be current
The application program of operation is switched to the program of another application area, so that currently operation application partition is avoided needing
Upgrade the application area updated, i.e., if currently running application program is the program in the area A, and needs to upgrade the application updated
When program area is also the area A, then currently running application program is switched to the area B from the area A, when the application program for needing to upgrade update
When area is the program in the area B, then it is not required to switch;Application partition switching is completed, the relevant information currently upgraded and completion are recorded
Preparation before upgrade file.
The area application program A and the area application program B are two different application program partition holdings, respectively correspond/are stored in
Different Flash partitions.In the upgrading process signal of Fig. 2, if change partitions fail, indicate to answer where the subregion to be switched
With program corruption, or do not upgraded.Upgrading at this time should be first from the application program where the upgrading area.As application program operates in
The area A, when needing to upgrade the area A application program, it is necessary to first be switched to the area B, if the damage of the area B upgrade file or not upgrading out-of-date, can lead
Change partitions failure is caused, so as to cause the application program failure in the upgrading area A, at this moment must first upgrade the area B application program.Upgrade
Cheng Hou can just upgrade the area A application program again.
As shown in figure 3, being first powered up or when program software jumps reset, program starts from interrupt vector for process in booting
Area executes;According to the related jump address (having set when compiling) in interrupt vector area, jump to the address, operation in this
Disconnected the corresponding application area in vector area (area A or the area B);Application program from system parameter conservation zone obtain upgrading before or on
The upgrade status information saved before electric;According to the related status information of upgrading, decide whether to execute subregion switching, if upgrading
System switches without subregion when state is the state that upgrades successfully or is the state of the non-programming program of subregion, guarantees upgrading failure
Or when system normal operation, program is rested in the version finally upgraded;In addition when trial operation fails, it also will start subregion and cut
It changes, guarantees that system program rolls back to version before upgrading.
Program operation in change partitions process it is as shown in Figure 4: program run when, under upgrade status change partitions or
When hand-operated forced change partitions, the function of change partitions will start.Subregion switching when this subregion switches and powers on is inconsistent
, powering on subregion switching guarantee system can normally start, and running switching is mainly a step of escalation process.Point
When area's handover failure, related upgrade status information will record to the parameter conservation zone of system, while terminating to upgrade process, be the later period
Again upgrading is prepared.
The logic of application partition switching is shown in step as shown in Figure 5, the program sectioning position that upgrades as needed and works as
The district location of future sort run decides whether to realize that subregion jumps;When subregion jumps, if there is the subregion application journey to be jumped
When sequence verification failure or non-programming application program, return jump is unsuccessfully identified, and prompts this subregion of user that cannot first upgrade, it is necessary to first
Upgrading jumps the program of subregion.
Fig. 6 show the operating procedure of the protection of relevant operational state when subregion jumps: to guarantee that service logic is not interrupted,
Protection in need business state information, be stored in Flash partition, i.e., then first saving scene state is prohibited into Flash
With all interruptions, copy interrupt vector table to backup area, then can change partitions jump the application program of operation.It is powering on
When first read these information, further according to these information carry out relevant control, with guarantee service logic state of a control with upgrading before protect
It holds unanimously, prevents service exception interruption.
Step 3 starts to upgrade: write-in upgrade procedure is verified to corresponding upgrade area, and to every frame data;
The step 3 specifically includes, and MCU connects according to the record information of the upgrade procedure command parameter received in step 2
Every frame data of upgrade file are received, and are saved in the corresponding region Flash.Wherein, the data of former frames are in upgrade procedure
Disconnected vector table, this data are placed on interrupt vector backup area, other data are the data of application program, are placed on accordingly using journey
Sequence region.Wherein for the correctness of the data received, the every frame data received are verified, then when check errors
Request receives data again.To guarantee that the data of interrupt vector table and application program separate, needs to be arranged in compiling and apply journey
The initial address of sequence, the area A of application program and the initial address in the area B are the subregion initial address in memory, and interrupt vector
The initial address of table is 0 address of Flash partition, the area A and the area B initial address be it is identical, run that subregion, just copy that
A subregion is to 0 initial address.
Step 4, trial operation: trial operation upgrade code is confirmed whether to upgrade OK;
The step 4 specifically includes, and receives the check command of upgrade file: the totalframes transmitted when verification upgrading, total word
Joint number, after upgrade file is written to Flash, the data of the current upgrade file of readback and generate verification and, in check command
Data are compared, if above- mentioned information unanimously if determine upgrade file be written successfully, update upgrade status, into program trial operation
Mode.Above-mentioned inspection is verified to the data in entire upgrading area, prevents write-in data from having exception.Trial operation Shi Weibao
Card operation error can restore, and when into the step, be changed to the upgrade status of program in the parameter protection area of system
Trial operation state;In addition, in a program to one key mark of setting in the realization function of each key function module of program
Its corresponding key mark variable is only just set to OK state when the functional module correctly executes by variable, is otherwise provided as pair
The error codes answered, if all key mark variables are all OK, the key function operation of specification module within the set time
It is successfully then trial operation success, change upgrade status, which is identified as, upgrades successfully mark, and otherwise system enters rollback state, cuts
The subregion of the application program run originally before upgrading is changed to, realizes system rollback.
Step 5, upgrading are completed, and retain related upgrade information: program upgrading is completed and verified, and retain related upgrade information
Afterwards, upgrading is exited, system powers on every time automatically switches to new version.
The step 5 specifically includes, and re-launching applications are (when some modules restart and will affect business, using the side of jumping
Formula is equally possible), the relative recording information (being placed on system parameter region) of record is read, main includes the upgrade status of program
Information and Service control logical message.The former is used to identify the relevant information of upgrading, mainly there is the region of upgrading, version before upgrading
This, version after upgrading, related upgrade step state: upgrading state of activation;Transmitting upgrading data mode;Data end of transmission
Wait acknowledgement state;Upgrading completes subregion and jumps trial operation state;Trial operation completion upgrades successfully state;The non-programming program of subregion
State.The latter is to guarantee that service logic is consistent with before jumping after application program is restarted, prevent upgrading from having an impact to business.
Decided whether to jump to new region according to the check information of upgrade file;The program of the upgrade file in new region is loaded, more
New load whether success flag, after running a period of time, if each functional module self-test success of program, update upgrade successfully mark
Know and be recorded in Flash, completes this application program updating.
In all upgrade steps, program can be worked normally, and guarantee that upgrading will not interrupting service.Host computer during upgrading can
To obtain the upgrade status mark in each stage at any time.When upgrading is interrupted or upgrading fails, program rests on current region, guarantees
Upgrading can be exited normally, and program can return back to state before upgrading.
The program version in the area A and the area B be it is independent upgraded, upgrading latter two region version can keep different
It causes, it, can when can roll back to other region automatically, or find that upgrade procedure is problematic if upgrade procedure trial operation fails in this way
Change partitions order is forced to carry out pressure rollback to send.When application program A or B are run, all subregions can be read
Version information.Status information when upgrading is stored in public system parameter protection zone, guarantees the consistency of service condition.
Above embodiments are only one embodiment of the present invention, and the description thereof is more specific and detailed, but cannot therefore and
It is interpreted as limitations on the scope of the patent of the present invention.Its specific structure and size can be adjusted correspondingly according to actual needs.It answers
When, it is noted that for those of ordinary skill in the art, without departing from the inventive concept of the premise, can also make
Several modifications and improvements, these are all within the scope of protection of the present invention.
Claims (5)
1. a kind of optical module firmware program on-line upgrading method, characterized by comprising:
Step 1, activation upgrading mark, into upgrade mode;
Step 2, upgrade procedure command parameter is received, according to currently running application partition and the application program for needing to upgrade
Subregion judges whether to need to switch over currently running application partition, so that currently running application partition is kept away
Open the application partition for needing to upgrade;
Step 3, upgrade procedure data are received, and every frame data are verified, write upgrade procedure data after verification is correct
Enter to corresponding application partition;
Step 4, the upgrade procedure data for being written to corresponding application partition are verified, verifies correct rear beginning test run
The row upgrade procedure;If trial operation success, setting upgrade successfully mark, otherwise system enters rollback state, is switched to liter
The subregion of the application program run originally before grade realizes system rollback;
Step 5, application program updating is completed, and after retaining related application upgrade information according to result of trial operation, exits upgrading
Mode;
The interruption variable range of application program launching, multiple application areas, interrupt vector backup area and system parameter conservation zone;
Optical module internal processes are not provided with the area bootloader in memory block.
2. optical module firmware program on-line upgrading method according to claim 1, it is characterised in that: the upgrade procedure life
It includes following one or more for enabling parameter: the application area for needing to upgrade, upgrade file size, upgrade procedure version, program
Interrupt vector table size, upgrading frame sum, the data field size of every frame, the CRC standard of use, the total CRC check of file and.
3. optical module firmware program on-line upgrading method according to claim 1, it is characterised in that: the upgrade procedure
It is provided with key mark variable in the realization function of each key function module, only just will when the functional module correctly executes
Its corresponding key mark variable is set to OK state, is otherwise provided as corresponding error codes, the time set in trial operation
If interior all key mark variables are all OK states, then it represents that trial operation success.
4. optical module firmware program on-line upgrading method according to claim 1, it is characterised in that: described program upgrading letter
Breath includes following one or more: the application area of upgrading is executed, version before upgrading, and version after upgrading, correlation upgrading step
Rapid state.
5. optical module firmware program on-line upgrading method according to claim 4, it is characterised in that: the upgrade step shape
State includes: upgrading state of activation, is transmitting upgrading data mode, data end of transmission waiting acknowledgement state, upgrading completion point
Area jumps trial operation state, trial operation completion upgrades successfully the non-programming program state of state, subregion.
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