CN109213510A - A kind of application program updating method and storage medium for embedded device - Google Patents
A kind of application program updating method and storage medium for embedded device Download PDFInfo
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- CN109213510A CN109213510A CN201811109870.7A CN201811109870A CN109213510A CN 109213510 A CN109213510 A CN 109213510A CN 201811109870 A CN201811109870 A CN 201811109870A CN 109213510 A CN109213510 A CN 109213510A
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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
- G06F8/66—Updates of program code stored in read-only memory [ROM]
Abstract
A kind of application program updating method and storage medium for embedded device, it includes receiving step to receive the upgrade command of user's input, upgrade step is upgraded with reading the file in the External memory equipment selected by user using application program of this document to the embedded device.On the one hand, due to only needing the External memory equipment for being stored with upgrade file, it avoids embedded device and is the troublesome operation upgraded when cd-rom recorder or computer connect, so that application program updating method provided in this embodiment is applicable to most of application environment, can be brought cheaply for user；On the other hand, since the application program updating process of embedded device i.e. executable after user inputs upgrade command has the experience of superior user's operation conducive to the ease of Use effect for realizing key upgrading.
Description
Technical field
The present invention relates to embedded devices, and in particular to a kind of application program updating method for embedded device and deposits
Storage media.
Background technique
As embedded system is in communication and the extensive use of industrial control field, in order to improve the life cycle of product with
And adapt to new business demand, it usually needs field upgrade, the important updated contents packet of one of them are carried out to embedded system
Include the upgrading to application program in embedded device.
Embedded device is mainly made of embeded processor, associated support hardware and embedded software system, it is collection
Software and hardware does not have the such large capacity of computer processing system generally in " device " that can work independently of one, embedded device
Hard disk, it uses nonvolatile memory (Flash, ROM or RAM) as storage medium mostly, in general, bootstrap, answering
It is stored in the memory with embedded softwares such as program, communications protocol, Database Systems, standardization browsers.
Application program (including operating system) is one of important composition of embedded software, for controlling other programs fortune
Row, management system resource simultaneously provide operation interface for user.Upgrade the function concerning embedded software to the update of application program
Realization and self-regeneration, during realizing that self-renewing upgrades using itself order of application program, if upgrading failure,
It would potentially result in software systems collapse.For the reliability for guaranteeing application program updating process, emulator, programming are generallyd use at present
Device is treated upgraded version and is pre-processed, then with cd-rom recorder by the memory of treated upgraded version is burnt to insertion sets equipment
In.However, during being upgraded using cd-rom recorder to application program, since the interface connecting with cd-rom recorder is usually arranged
In the inside of embedded device, the shell for needing to dismantle embedded device could upgrade it, in this way, will lead to upgrading behaviour
It is complicated and time-consuming to make process, so that user experience effect is poor, in addition, emulator, programmable device, cd-rom recorder is at high price, often
It will push the application cost of user.
Currently, there is also the methods of online upgrading, and user is needed to download the upper computer software of producer's customization on computers,
Computer and embedded device are attached, run upper computer software so that version to be upgraded to be written to the storage of embedded device
In device.Though this upgrading mode gets rid of the constraint of the auxiliary tools such as emulator, programmable device, cd-rom recorder, user is needed to hold
Computer simultaneously skillfully uses upper computer software, and there is also lines, the cumbersome process of networking, are not able to satisfy the application of convenient upgrading
It is required that.
Summary of the invention
The present invention solves the technical problem of how to solve existing embedded device during application program updating
The problem of mode of operation complexity, poor user experience.It is set in order to solve the above technical problems, this application provides one kind for embedded
Standby application program updating method and device thereof.
It is described according in a first aspect, a kind of embodiment provides a kind of application program updating method for embedded device
Embedded device is connect with an External memory equipment, the application program updating method the following steps are included:
Receiving step: the upgrade command of user's input is received；
Upgrade step: the file in the External memory equipment selected by user is read, and using this document to described
The application program of embedded device is upgraded.
Input part is provided, for inputting the upgrade command for user.
The file includes upgrading data, and the upgrade step includes burning step, and the burning step includes:
Read the upgrading data in the file；
Wipe the data in the memory of the embedded device in application area；
The application area in the memory of the embedded device is written into the upgrading data.
The file further includes header data；The upgrade step further includes the verification step before burning step, institute
Stating verification step includes:
The header data of the file is read, the header data includes device model information and upgrading data length letter
Breath；
Judge whether the device model information matches with the model of the embedded device, and judges the upgrading data
Length and the sum of the length of the header data whether matched with the physical length of the file；
When judgement matching, the burning step is just carried out.
The upgrade step further includes resetting reboot step, and the reset reboot step is located at before the burning step,
Or the reset reboot step is located at after the verification step and before burning step；The reset reboot step:
The setting upgrading flag bit in the memory of the embedded device；
It controls the embedded device execution to restart, wherein when running bootstrap in the embedded device restarting process
When recognizing the upgrading flag bit, the burning step is carried out.
It is described that the application area in the memory of the embedded device is written into the upgrading data, comprising:
Since the super beginning position of the upgrading data, the upgrading data are read according to preset reading data amount every time
In one group of data；
It will be every time from answering in the memory that the embedded device is written in the one group of data read in the upgrading data
With program area, after each group of data are written, then next group of data are read from the upgrading data and by the next group of data
The application area in the memory of the embedded device is continued to write to, until the upgrading data all write-in.
It is described that the one group of data read from the upgrading data every time are written in the memory of the embedded device
Application area, comprising:
One group of data of reading are decomposed into the serial data of multiple preset byte length；
For each serial data, each byte in the serial data is sequentially written in the memory of the embedded device
Application area.
One serial data is written after the application area in the memory of the embedded device, further includes that byte compares
Step, the byte comparison step include:
By in the serial data each byte and the application area in each byte of corresponding data string for having been written into
It is compared one by one, when judging to compare failure, then the serial data is re-write, conversely, by next serial data of the serial data
Continue to write to the application area in the memory of the embedded device.
It further include the upgrading test step after upgrade step, the upgrading test step includes:
It controls the embedded device execution to restart, in the built-in equipment operation bootstrap, guide described embedding
Enter in formula equipment load memory and have been written into the upgrading data of application area, if loading successfully, judges the insertion
The upgrading test that formula equipment passes through application program in memory.
According to second aspect, a kind of embodiment provides a kind of computer readable storage medium, including program, described program energy
It is enough executed by processor in the method as described in claim first aspect of realization.
A kind of application program updating method and storage medium for embedded device according to above-described embodiment comprising
Receiving step is to receive the upgrade command that user inputs, and upgrade step is to read in the External memory equipment selected by user
File, and upgraded using application program of this document to the embedded device.On the one hand, due to only needing one to deposit
The External memory equipment for containing upgrade file avoids embedded device and is to be upgraded when cd-rom recorder or computer connect
Troublesome operation can be so that application program updating method provided in this embodiment is applicable to most of application environment
User brings cheaply；On the other hand, due to the application program of embedded device i.e. executable after user inputs upgrade command
Escalation process has the experience of superior user's operation conducive to the ease of Use effect for realizing key upgrading.
Detailed description of the invention
Fig. 1 is the schematic diagram of code area layout in the memory of STM32 embedded device；
Fig. 2 is the flow chart of application program updating method；
Fig. 3 is the flow chart of upgrade step；
Fig. 4 is the flow chart of burning step；
Fig. 5 is the flow chart of upgrading input write step.
Specific embodiment
Below by specific embodiment combination attached drawing, invention is further described in detail.Wherein different embodiments
Middle similar component uses associated similar element numbers.In the following embodiments, many datail descriptions be in order to
The application is better understood.However, those skilled in the art can recognize without lifting an eyebrow, part of feature
It is dispensed, or can be substituted by other elements, material, method in varied situations.In some cases, this Shen
Please it is relevant it is some operation there is no in the description show or describe, this is the core in order to avoid the application by mistake
More descriptions are flooded, and to those skilled in the art, these relevant operations, which are described in detail, not to be necessary, they
Relevant operation can be completely understood according to the general technology knowledge of description and this field in specification.
It is formed respectively in addition, feature described in this description, operation or feature can combine in any suitable way
Kind embodiment.Meanwhile each step in method description or movement can also can be aobvious and easy according to those skilled in the art institute
The mode carry out sequence exchange or adjustment seen.Therefore, the various sequences in the description and the appended drawings are intended merely to clearly describe a certain
A embodiment is not meant to be necessary sequence, and wherein some sequentially must comply with unless otherwise indicated.
It is herein component institute serialization number itself, such as " first ", " second " etc., is only used for distinguishing described object,
Without any sequence or art-recognized meanings.And " connection ", " connection " described in the application, unless otherwise instructed, include directly and
It is indirectly connected with (connection).
For application program and the application area for being clearly understood that the application, here by the operating mechanism to embedded device into
Row brief description.The embedded software of embedded device includes bootstrap (bootloader) and application program (user
Application), the two is collectively stored in the memory of embedded equipment, by taking the embedded device of STM32 type as an example, it
FLASH address section be 0x08000000 to 0x080FFFFF, wherein 0x08000000-0x08040000 pairs of address section
What is answered is bootstrap area, and for storing bootstrap, and it is application area that 0x08040000-0x080FFFFF is corresponding,
For storing application program.It should be noted that application program need to cooperate bootstrap can normal load, embedded
After device power, the input of a small amount of instruction and data is realized by bootstrap, completes system initialization process, then by bootstrap
Input application program is controlled, to realize the starting of embedded device.
Referring to FIG. 2, the application discloses a kind of application program updating method for embedded device comprising step
S100-S200.It should be noted that embedded device provided in this embodiment should to realize the application program updating method
It is connect with an External memory equipment, and file needed for application program updating should be previously stored in External memory equipment (or
Claim upgrade file data packet), External memory equipment here can be the storage equipment such as USB flash disk, mobile hard disk, RAM card.
Step S100, can be described as receiving step, be mainly used for receiving the upgrade command of user's input.In one embodiment,
Embedded device should provide input part, which inputs upgrade command for user, and input part here can be
The physical button on touch key-press, control panel on touch screen or the code command etc. of keyboard input, do not order upgrading here
The specific input form enabled is limited.
Step S200, can be described as upgrade step, be mainly used for reading the file in External memory equipment selected by user,
And upgraded using application program of this document to embedded device.
In one embodiment, embedded device identifies and reads External memory equipment, and user operates on embedded device
To choose the file in External memory equipment, it is then inserted into what user in formula equipment receiving step S100 was inputted by input part
Upgrade command starts the escalation process in step S200.It can be seen that Fig. 2 and Fig. 3, step S200 may include step S210-S230, under
Face illustrates respectively.
Step S210, can be described as verification step, be mainly used for judging in file that user chooses in External memory equipment
Header data whether matched with embedded device information.It can be seen that Fig. 3, step S210 may include step S211-S223.
Step S211, the file that user is chosen in External memory equipment is as upgrade file, and the upgrade file is often
Including header data and upgrading data, the header data in upgrade file can be read here, wherein header data may include equipment
Type information and/or upgrading data length information.
Step S212, judges whether information matches, that is, judges that header data and embedded device information and file size are believed
Whether breath matches, when judgement matches, then into reboot step S220 and subsequent burning step S230；Conversely, then entering step
S213。
In a specific embodiment, judge whether device model information matches with the model of embedded device, and described in judgement
Whether the length and the sum of the length of the header data for upgrading data match that (or judgement rises with the physical length of the file
Whether grade data length information matches with the physical length for upgrading data in upgrade file) simultaneously, if information matches, it may be determined that
Upgrade file meets verification, the upgrading data in the upgrade file for meeting verification further could be burned onto embedded device
Memory in.
Step S213, upgrading failure, at this point, the prompt information of the capable of emitting upgrading failure of embedded device, to instruct user
Restart step S100.
Step S220, can be described as reboot step, see Fig. 3, and step S220 may include step S221-S222, illustrate respectively
It is as follows.
Step S221, the setting upgrading flag bit in the memory of embedded device.
Step S222, control embedded device execution are restarted, and wherein run bootstrap in embedded device restarting process
When recognizing the upgrading flag bit, then carry out burning step S230.
It will be understood by those of skill in the art that the purpose of setting upgrading flag bit is, initialized in embedded device
When would indicate that its carry out next step burning work, if not upgrading flag bit, embedded device will execute bootstrap after
It is loaded directly into existing application program in memory, burning work can not be executed.
It should be noted that the upgrading mark in memory can be eliminated after embedded device has executed burning step S230
Will position executes burning work when to prevent restarting again again and equipment is caused not start normally.
Step S230 can be described as burning step, mainly by the upgrading data write-in embedded device in upgrade file
Application area in memory.It can be seen that Fig. 3, step S230 may include step S231-S233, will illustrate respectively below.
Step S231 reads the upgrading data in file (upgrade file).
Step S232 wipes the data in the memory of embedded device in application area, i.e. erasing application area
The application program of interior old edition.
Step S233, by the application area in the memory for upgrading data write-in embedded device, i.e., in application program
The application program of new edition is written in area.See Fig. 4, step S233 may include step S2331-S2339, be respectively described below.
Step S2331 reads upgrading since the super beginning position of upgrading data according to preset reading data amount every time
One group of data in data, reading data amount here determine by the buffer size or memory field size of embedded device,
It can not effectively be cached to prevent once reading excessive data, then, the reading data of 2K, 4K, 8K can be used here
Amount (in last time reading, is discontented with reading by actual data volume for preset reading data amount).In one group of number of every acquisition
It, can will be every time from the application program in the memory of the one group of data write-in embedded device read in upgrading data according to rear
Area.
One group of data of reading are decomposed into the serial data of multiple preset byte length, the word here preset at by step S2332
Saving length can be depending on the execution speed of processor, it is preferable that using the byte length of 4 bytes or 8 bytes.For example,
For 2K data, the serial data of 512 continuous 4 bytes can be analyzed to；For (2K+1) data, it can decompose
The serial data of 1 byte is written for the serial data of 512 continuous 4 bytes, and last time.
Step S2333, since the memory of embedded device the initial position of application area, according to serial data
Application area is written in one serial data by sequencing.
Step S2334 can be described as byte comparison step, mainly by each byte in the serial data in step S2333
It is compared with each byte for the corresponding data string being had been written into application area, when judging to compare failure, is then entered one by one
Step S2335, otherwise (when comparing successfully), then enter step S2336.
For example, each byte having been written into and former 4 bytes are compared after application area is written in 4 bytes
It is right, if being considered as comparing successfully when the byte of write-in and completely the same former byte.The purpose of the byte comparison step is to ensure that
Write error will not occur for each byte of write-in application area.
Step S2335 re-writes the serial data, to cover last time for the writing area of the serial data.Then it holds again
Row step S2334, until comparing successfully.
Whether one group of data in step S2336, judgment step S2332 are all written application area, if it is not, then entering
Step S2337, if so, entering step S2338.
Next serial data is continued to write to the application area in the memory of embedded device, is true by step S2337
Next serial data, should be write on the address location after a upper serial data by the continuity for protecting data storage.Then it carries out
Step S2334-S2336, until each serial data to be written to the application area in the memory of embedded device.
Step S2338, judges whether upgrading data are all written the application area in the memory of embedded device, if
It is then to enter step S300, if it is not, then entering step S2339.
Step S2339 reads next group of data after each group of data are written, then from upgrading data, continues to walk
The next group of data are continued to write to the application area in the memory of embedded device by rapid S2332-S2338, until rising
Grade data are all until write-in.
Step S300 can be described as upgrading test step.Control embedded device execution is restarted, and is drawn in built-in equipment operation
When lead sequence, the upgrading data of application area are had been written into guidance embedded device load memory, if loading successfully,
I.e. equipment can operate normally application program, then judge that embedded device passes through the upgrading test of application program in memory；
If not loading success, i.e., when generating system collapses, can not start, operate the situations such as failure when equipment runs application program, then
Judge embedded device not by the upgrading test of application program, at this time user can brush machine again, select correct upgrade file
The updating operation of step S100-S200 is executed again.
In one embodiment, the upgrading of application program is carried out to STM32 embedded device using above-mentioned steps S100-S300
Operation.Embedded device reads upgrade file from the External memory equipment (such as USB flash disk), by step S210 to upgrade file into
Row verification, then reboot step S220 and burning step S230 is carried out after verifying successfully.In step S230, every time with the number of 2K
Upgrading data are read according to read volume, since the memory of embedded device the address 0x08040000 of application area,
One group of data of reading are written by application area with the byte length of 4 bytes every time, until the corresponding one group of data of 2K are complete
Then portion's write-in is read next group of data according to step S2339 continuation from the upgrading data of upgrade file in USB flash disk, then is carried out
The writing process of step S2331-S2338, until application area is all written in upgrading data.It is logical in STM32 embedded device
After crossing the upgrading test of application program, i.e., it is believed that the equipment completes the updating operation of application program.
It will be understood by those skilled in the art that all or part of function of various methods can pass through in above embodiment
The mode of hardware is realized, can also be realized by way of computer program.When function all or part of in above embodiment
When being realized by way of computer program, which be can be stored in a computer readable storage medium, and storage medium can
To include: read-only memory, random access memory, disk, CD, hard disk etc., it is above-mentioned to realize which is executed by computer
Function.For example, program is stored in the memory of equipment, when executing program in memory by processor, can be realized
State all or part of function.In addition, when function all or part of in above embodiment is realized by way of computer program
When, which also can store in storage mediums such as server, another computer, disk, CD, flash disk or mobile hard disks
In, through downloading or copying and saving into the memory of local device, or version updating is carried out to the system of local device, when logical
When crossing the program in processor execution memory, all or part of function in above embodiment can be realized.
Use above specific case is illustrated the present invention, is merely used to help understand the present invention, not to limit
The system present invention.For those skilled in the art, according to the thought of the present invention, can also make several simple
It deduces, deform or replaces.
Claims (10)
1. a kind of application program updating method for embedded device, the embedded device and an External memory equipment connect
Connect, which is characterized in that the application program updating method the following steps are included:
Receiving step: the upgrade command of user's input is received；
Upgrade step: the file in the External memory equipment selected by user is read, and using this document to the insertion
The application program of formula equipment is upgraded.
2. application program updating method as described in claim 1, which is characterized in that input part is provided, for defeated for user
Enter the upgrade command.
3. application program updating method as described in claim 1, which is characterized in that the file includes upgrading data, described
Upgrade step includes burning step, and the burning step includes:
Read the upgrading data in the file；
Wipe the data in the memory of the embedded device in application area；
The application area in the memory of the embedded device is written into the upgrading data.
4. application program updating method as claimed in claim 3, which is characterized in that the file further includes header data, institute
Stating upgrade step further includes the verification step before burning step, and the verification step includes:
The header data of the file is read, the header data includes the length information of device model information and upgrading data；
Judge whether the device model information matches with the model of the embedded device, and judges the length of the upgrading data
Whether the sum of degree and the length of the header data match with the physical length of the file；
When judgement matching, the burning step is just carried out.
5. application program updating method as claimed in claim 3, which is characterized in that the upgrade step further includes resetting to restart
Step, the reset reboot step is located at before the burning step or the reset reboot step is located at verification step
After rapid and before burning step, the reset reboot step:
The setting upgrading flag bit in the memory of the embedded device；
It controls the embedded device execution to restart, wherein when knowledge when running bootstrap in the embedded device restarting process
It is clipped to the upgrading flag bit, carries out the burning step.
6. application program updating method as claimed in claim 3, which is characterized in that it is described will the upgrading data write-in described in
Application area in the memory of embedded device, comprising:
Since the initial position of the upgrading data, read in the upgrading data according to preset reading data amount every time
One group of data；
It will be every time from the application journey in the memory that the embedded device is written in the one group of data read in the upgrading data
Sequence area after each group of data are written, then read next group of data from the upgrading data and continues the next group of data
The application area in the memory of the embedded device is written, until the upgrading data all write-in.
7. application program updating method as claimed in claim 6, which is characterized in that it is described will be every time from the upgrading data
The application area in the memory of the embedded device is written in the one group of data read, comprising:
One group of data of reading are decomposed into the serial data of multiple preset byte length；
For each serial data, each byte in the serial data is sequentially written in answering in the memory of the embedded device
Use program area.
8. programme upgrade method the use as claimed in claim 7, which is characterized in that embedded set serial data write-in is described
It further include byte comparison step after application area in standby memory, the byte comparison step includes:
By in the serial data each byte and the application area in each byte of corresponding data string for having been written into carry out
It compares one by one, when judging to compare failure, then re-writes the serial data, conversely, next serial data of the serial data is continued
The application area in the memory of the embedded device is written.
9. such as application program updating method of any of claims 1-8, which is characterized in that further include upgrade step it
Upgrading test step afterwards, the upgrading test step include:
It controls the embedded device execution to restart, in the built-in equipment operation bootstrap, guide described embedded
The upgrading data of application area are had been written into equipment load memory, if loading successfully, judge described embedded set
The standby upgrading test by application program in memory.
10. a kind of computer readable storage medium, which is characterized in that including program, described program can be executed by processor with
Realize method as claimed in any one of claims 1-9 wherein.
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| CN111258890A (en) * | 2020-01-10 | 2020-06-09 | 北京大米未来科技有限公司 | Program test method, storage medium, and system |
| CN111309364A (en) * | 2020-05-11 | 2020-06-19 | 深圳市科信通信技术股份有限公司 | Chip program upgrading method and device and storage medium |
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