CN106484469B - A kind of embedded system data processing method and its device - Google Patents
A kind of embedded system data processing method and its device Download PDFInfo
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- CN106484469B CN106484469B CN201610863994.9A CN201610863994A CN106484469B CN 106484469 B CN106484469 B CN 106484469B CN 201610863994 A CN201610863994 A CN 201610863994A CN 106484469 B CN106484469 B CN 106484469B
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F9/00—Arrangements for program control, e.g. control units
- G06F9/06—Arrangements for program control, e.g. control units using stored programs, i.e. using an internal store of processing equipment to receive or retain programs
- G06F9/44—Arrangements for executing specific programs
- G06F9/445—Program loading or initiating
- G06F9/44505—Configuring for program initiating, e.g. using registry, configuration files
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F9/00—Arrangements for program control, e.g. control units
- G06F9/06—Arrangements for program control, e.g. control units using stored programs, i.e. using an internal store of processing equipment to receive or retain programs
- G06F9/44—Arrangements for executing specific programs
- G06F9/445—Program loading or initiating
- G06F9/44568—Immediately runnable code
- G06F9/44578—Preparing or optimising for loading
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Abstract
The invention discloses a kind of embedded system data processing method and its devices, and this method comprises the following steps: S1, reading application parameter packet from external memory；Application parameter packet includes data type, parameter ID, list of locations length, list of locations, data length, data value and attribute description；S2, the parameter ID according in the application parameter packet, list of locations and data length computation its data-bias value, and the corresponding internal storage region of application parameter packet is obtained according to data-bias value；S3, the application parameter packet is loaded into its corresponding internal storage region；S4, judge whether the application parameter packet comes into force according to the attribute description of application parameter packet.The advantage of the invention is that processing data are more simple, and committed memory is few, and increases the compatibility and scalability of system processes data by the way that the technical characteristics such as parameter ID, list of locations data length, attribute description are arranged in application parameter packet.
Description
Technical field
The present invention relates to embedded system technology more particularly to embedded system data processing method and its devices.
Background technique
Embedded system (Embedded system) is that one kind is completely embedded into inside controlled device, is set for specific application
The dedicated computer system of meter.In embedded systems, parameter is saved there are mainly three types of form: 1) it is injunctive, as primary flow path by
The configuration file of device uses CLI command mode recording parameters configuring condition；2) formula is described, such as many application software use XML lattice
Formula saves parameter；3) initial data formula saves parameter in a manner of most direct, simple in order.It is using authoritative advantage
Compatibility, scalability are good, and have recorded the sequence that parameter comes into force.Equally there is compatibility and scalability using description formula
Good advantage, and can be with the hierarchical relationship between characterising parameter.But injunctive and description formula is required using resolver to matching
It sets file to be parsed, the parameter speed that comes into force is slow, occupies more memory headroom.Initial data formula, compatibility and scalability
Difference, but parameter comes into force that speed is fast, and committed memory is few.Under the embedded environment using single-chip microcontroller, memory resource limitation is more susceptible
Parameter preservation is carried out using initial data formula under condition.
Not use Code automatic build technology in the case where, when need when parameter region adds new parameter, programming
Personnel must load in parameter, save, add corresponding code in the new and old parameter value power functions such as relatively, and operating process is easy
There is the case where leakage adds, mistake adds code, operation correctness and stability, the software development efficiency for influencing embedded system be not high.
Summary of the invention
For overcome the deficiencies in the prior art, one of the objects of the present invention is to provide a kind of processing of embedded system data
Method can make data processing committed memory few and simpler.
The second object of the present invention is to provide a kind of embedded system data processing unit, data processing can be made to occupy
Memory is few and simpler.
An object of the present invention is implemented with the following technical solutions:
A kind of embedded system data processing method, specifically comprises the following steps:
S1, application parameter packet is read from external memory；Application parameter packet includes data type, parameter ID, location column
Table length, list of locations, data length, data value and attribute description；
S2, the parameter ID according in the application parameter packet, list of locations and data length computation its data-bias value, and root
The corresponding internal storage region of application parameter packet is obtained according to data-bias value；
S3, the data value of the application parameter packet is loaded into its corresponding internal storage region；
S4, judge whether the application parameter packet comes into force according to the attribute description of application parameter packet, if it is should
Otherwise etc. the data value of application parameter packet is applied in the running environment of embedded system, and embedded systems again answer this after restarting
It is applied in the running environment of embedded system with the data value of parameter packet.
Preferably, in the S1 further include: when obtaining new data value, execute S5；
S5, data type corresponding with the new data value, parameter ID, list of locations length, list of locations sum number are obtained
Storage parameter packet is generated according to length, and together with new data value, executes S6；
S6, the storage parameter packet is stored to external memory.
Preferably, further including executing S5a before executing S5, S5a, judging the new number when obtaining new data value
It is whether identical according to corresponding data value currently in use in value and embedded system, if it is terminate, otherwise executes S5.
Preferably, further including following steps before S2:
Whether corresponding data value is identical in S2a, the data value for judging application parameter packet and embedded system；If it is
Terminate, otherwise executes S2.
The second object of the present invention is implemented with the following technical solutions:
A kind of embedded system data processing unit, specifically includes:
Execution module is obtained, for reading application parameter packet from external memory；Application parameter packet include data type,
Parameter ID, list of locations length, list of locations, data length, data value and attribute description；
Computing module, for according to parameter ID, list of locations and data length computation its data in the application parameter packet
Deviant, and the corresponding internal storage region of application parameter packet is obtained according to data-bias value；
Loading module, for the data value of the application parameter packet to be loaded into its corresponding internal storage region；
The module that comes into force is judged, for judging whether the application parameter packet gives birth to immediately according to the attribute description of application parameter packet
Otherwise the data value of the application parameter packet, is if it is applied in the running environment of embedded system by effect, the embedded system such as
The data value of the application parameter packet is applied in the running environment of embedded system by system again after restarting.
Preferably, executing generation module when the acquisition execution module is also used to obtain new data value；
Generation module, for obtaining data type corresponding with the new data value, parameter ID, list of locations length, position
List and data length are set, and generates storage parameter packet together with new data value, executes memory module；
Memory module, for storing the storage parameter packet to external memory.
Preferably, further include executing the second comparison module before executing generation module when obtaining new data value, the
Two comparison modules, for judging whether corresponding data value currently in use is identical in the new data value and embedded system,
If it is terminate, otherwise execute generation module.
Preferably, embedded system data processing unit further includes the first comparison module, the first comparison module, for sentencing
Whether corresponding data value is identical in the data value and embedded system of disconnected application parameter packet；If it is terminate, otherwise execute
Computing module.
Compared with prior art, the beneficial effects of the present invention are: pass through in application parameter packet be arranged parameter ID, location column
The technical characteristics such as table data length, attribute description, processing data are more simple, and committed memory is few, and increase system processing
The compatibility and scalability of data.
Detailed description of the invention
Fig. 1 is the flow chart of embedded system data processing method of the invention；
Fig. 2 is the module connection figure of embedded system data processing unit of the invention.
Specific embodiment
In the following, being described further in conjunction with attached drawing and specific embodiment to the present invention:
A kind of embedded system data processing method is applied in embedded system；As shown in Figure 1, specifically including as follows
Step:
Step 01, when reading application parameter packet from external memory, execute step 02；
When getting new data value, step 06 is executed；
The new data value can be user setting, be also possible to voluntarily to generate inside embedded system.
The application parameter packet includes data type, parameter ID, list of locations length, list of locations, data length, data
Value and attribute description；Data type includes STRING, IP, MAC and PASSWORD etc.；
For example, as shown in table 1, the parameter ID of parameter Magic is 0x00000001, and list of locations length is
0x00000001, list of locations only one list item 0x0000, the data value of data length 0x00000004, Magic are
0x55aa1234。
The parameter ID of parameter User is 0x00000002, and list of locations length is 0x00000001, list of locations 0x0000
User [0] and User [1] are respectively corresponded with 0x0001, the character string of data length 0x00000008, i.e., each User are maximum
Length, benefit 0 at the end of less than 8；Wherein the data value of User [0] be " admin ", ASCII character 0x61,0x64,
0x6d, 0x6e；The data value of User [1] is " guest ", ASCII character 0x67,0x75,0x65,0x73,0x74；Parameter
The data type of User is STRING.
Under some parameter ID, there is a n bit array, wherein there is n different data value, list of locations length indicates the number
The length of group, list of locations indicate position of some data value in the array.
Table 1
| Parameter ID | List of locations length | List of locations | Data length | Data value |
| 00 00 00 01 | 00 00 00 01 | 00 00 | 00 00 00 04 | 55 aa 12 34 |
| 00 00 00 02 | 00 00 00 01 | 00 00 | 00 00 00 08 | 61 64 6d 69 6e 00 00 00 |
| 00 00 00 02 | 00 00 00 01 | 00 01 | 00 00 00 08 | 67 75 65 73 74 00 00 00 |
In the present embodiment, the attribute description includes whether the application parameter packet comes into force, involved in the parameter
Module description and the application parameter packet are that global or special interface is related.
For example, if identified in the attribute description of the User [0] of parameter User comprising F_ON_FLY, then it represents that User [0]
It comes into force, otherwise User [0] is to come into force after restarting；If in the attribute description of the User [0] of parameter User including F_PORT
Mark, it indicates that special interface is related, otherwise then indicates global；If including in the attribute description of the User [0] of parameter User
F_SYS, F_NET or F_TRANS, then it represents that User [0] relates separately to system module, network function module or data transmission mould
Block.
Step 02 judges corresponding data value currently in use in data value and embedded system in the application parameter packet
It is whether identical, if it is terminate；It is no to then follow the steps 03.
Step 03, the parameter ID according in the application parameter packet, list of locations and data length computation its data-bias value,
And the corresponding internal storage region of application parameter packet is obtained according to data-bias value；Execute step 04.
The internal storage region is the internal storage region in embedded system.
The application parameter packet is loaded into its corresponding internal storage region by step 04；Execute step 05.
Step 05 judges whether the application parameter packet comes into force according to the attribute description of application parameter packet, if it is
Otherwise etc. the data value of the application parameter packet is applied in the running environment of embedded system, again will after embedded systems are restarted
The data value of the application parameter packet is applied in the running environment of embedded system.
Step 06 judges whether corresponding data value currently in use is identical in the new data value and embedded system,
If it is terminate；It is no to then follow the steps 03.
Step 07 obtains data type corresponding with the new data value, parameter ID, list of locations length, list of locations
And data length, and storage parameter packet is generated together with new data value；Execute step 08；
The storage parameter packet includes data type, parameter ID, list of locations length, list of locations, data length and data
Value.
For example, one new parameter User [3] of user setting, data value is " abc ", and data type is
STRING；The list of locations length of new parameter User [3] is 0x00000001, list of locations 0x0002, and data length is
0x00000008, the corresponding ASCII character of data value are 0x61,0x62,0x63；As shown in table 2.
Table 2
| Parameter ID | List of locations length | List of locations | Data length | Data value |
| 00 00 00 02 | 00 00 00 01 | 00 02 | 00 00 00 08 | 61 62 63 00 00 00 00 00 |
Step 08 stores the storage parameter packet to external memory.
It is long to use data type, parameter ID, list of locations in application parameter packet for embedded system data processing method
Multiple technical characteristics such as degree, list of locations, data length, data value and attribute description determine parameter in data according to parameter ID
Base address in structure determines the offset address of parameter further according to list of locations, and the length of elongated data is determined according to data length
Degree, treatment process is simple, and committed memory is few；And increase the compatibility and scalability of data.
A kind of embedded system data processing unit, as shown in Fig. 2, specifically including:
Execution module is obtained, for executing the first comparison module when reading application parameter packet from external memory；
When getting new data value, the second comparison module is executed；
First comparison module, it is currently in use corresponding in data value and embedded system in the parameter packet for judging
Whether data value is identical, if it is terminates；Otherwise computing module is executed.
Computing module, for according to parameter ID, list of locations and data length computation its data-bias in the parameter packet
Value, and the corresponding internal storage region of parameter packet is obtained according to data-bias value；Execute loading module.
Loading module, for the parameter packet to be loaded into its corresponding internal storage region；It executes and judges the module that comes into force.
Judge the module that comes into force, for judging whether the parameter packet comes into force according to the attribute description of parameter packet, if it is
Otherwise etc. then the data value of the parameter packet is applied in the running environment of embedded system, embedded systems again should after restarting
The data value of parameter packet is applied in the running environment of embedded system.
Second comparison module, for judging corresponding data value currently in use in the new data value and embedded system
It is whether identical, if it is terminate；Otherwise generation module is executed.
Generation module, for obtaining data type corresponding with the new data value, parameter ID, list of locations length, position
List and data length are set, and generates storage parameter packet together with new data value；Execute memory module；
Memory module, for storing the storage parameter packet to external memory.
It will be apparent to those skilled in the art that can make various other according to the above description of the technical scheme and ideas
Corresponding change and deformation, and all these changes and deformation all should belong to the protection scope of the claims in the present invention
Within.
Claims (8)
1. a kind of embedded system data processing method, which comprises the steps of:
S1, application parameter packet is read from external memory；Application parameter packet includes that data type, parameter ID, list of locations are long
Degree, list of locations, data length, data value and attribute description；
S2, the parameter ID according in the application parameter packet, list of locations and data length computation its data-bias value, and according to number
The corresponding internal storage region of application parameter packet is obtained according to deviant；
S3, the data value of the application parameter packet is loaded into its corresponding internal storage region；
S4, judge whether the application parameter packet comes into force according to the attribute description of application parameter packet, if it is by the application
Otherwise etc. the data value of parameter packet is applied in the running environment of embedded system, again joins the application after embedded systems are restarted
The data value of number packet is applied in the running environment of embedded system.
2. embedded system data processing method as described in claim 1, which is characterized in that in the S1 further include: obtain
When new data value, S5 is executed；
S5, acquisition data type corresponding with the new data value, parameter ID, list of locations length, list of locations and data are long
Degree, and storage parameter packet is generated together with new data value, execute S6；
S6, the storage parameter packet is stored to external memory.
3. embedded system data processing method as claimed in claim 2, which is characterized in that when obtaining new data value,
Further include executing S5a before executing S5, S5a, judges corresponding number currently in use in the new data value and embedded system
It is whether identical according to being worth, if it is terminate, otherwise executes S5.
4. embedded system data processing method as described in claim 1, which is characterized in that further include walking as follows before S2
Rapid: whether corresponding data value is identical in S2a, the data value for judging application parameter packet and embedded system；If it is terminate,
Otherwise S2 is executed.
5. a kind of embedded system data processing unit characterized by comprising
Execution module is obtained, for reading application parameter packet from external memory；Application parameter packet includes data type, parameter
ID, list of locations length, list of locations, data length, data value and attribute description；
Computing module, for according to parameter ID, list of locations and data length computation its data-bias in the application parameter packet
Value, and the corresponding internal storage region of application parameter packet is obtained according to data-bias value；
Loading module, for the data value of the application parameter packet to be loaded into its corresponding internal storage region；
Judge the module that comes into force, for judging whether the application parameter packet comes into force according to the attribute description of application parameter packet, such as
Otherwise etc. fruit is that the data value of the application parameter packet is applied in the running environment of embedded system, and embedded systems are restarted
The data value of the application parameter packet is applied in the running environment of embedded system again afterwards.
6. embedded system data processing unit as claimed in claim 5, which is characterized in that the acquisition execution module is also used
When obtaining new data value, generation module is executed；
Generation module, for obtaining data type corresponding with the new data value, parameter ID, list of locations length, location column
Table and data length, and storage parameter packet is generated together with new data value, execute memory module；
Memory module, for storing the storage parameter packet to external memory.
7. embedded system data processing unit as claimed in claim 6, which is characterized in that when obtaining new data value,
It further include executing the second comparison module before executing generation module,
Second comparison module, for judging in the new data value and embedded system whether is corresponding data value currently in use
It is identical, if it is terminate, otherwise executes generation module.
8. embedded system data processing unit as claimed in claim 5, which is characterized in that it further include the first comparison module,
First comparison module, whether corresponding data value is identical in the data value and embedded system for judging application parameter packet；Such as
Fruit is to terminate, and otherwise executes computing module.
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| CN102339227A (en) * | 2010-07-28 | 2012-02-01 | 环旭电子股份有限公司 | Multi-firmware embedded system and firmware update method thereof |
| CN102314364A (en) * | 2011-08-08 | 2012-01-11 | 北京登合科技有限公司 | Method for automatically adapting to mobile terminal |
| CN103645924A (en) * | 2013-12-27 | 2014-03-19 | 金三立视频科技（深圳）有限公司 | Method and device for managing program parameters of embedded device |
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