CN105260133B - A kind of method for writing data and system of mobile terminal EMMC - Google Patents
A kind of method for writing data and system of mobile terminal EMMC Download PDFInfo
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Abstract
The invention discloses the method for writing data and system of a kind of mobile terminal EMMC, when detecting EMMC write operation, obtain the data for needing to be written EMMC；In the idle memory region of EMMC, search whether there is Coutinuous store region identical with the data for needing to be written EMMC, if it exists, then EMMC is not written into the data, the first address in the Coutinuous store region is fed back into the file system of mobile terminal to complete data write-in；If it does not exist, then the data are written in the idle memory region of EMMC, and the first address that the storage region of the data is written in EMMC is fed back into the file system of mobile terminal to complete data write-in；To reduce the write-in number of mobile terminal EMMC, to achieve the purpose that the service life for extending EMMC, brings and greatly facilitate.
Description
Technical field
The present invention relates to technical field of mobile terminals more particularly to a kind of method for writing data of mobile terminal EMMC
And system.
Background technique
With the mobile terminal for example development of the sci-tech products such as mobile phone, tablet computer, wearable device and universal, Ren Men
These all too busy to get away electronic products in daily life, and mobile phone is even more everyone standard configuration, most people possess hand simultaneously
Multiple mobile terminals such as machine.Each mobile terminal has memory, that is, EMMC.EMMC (Embedded Multi Media
It Card is) ordered by MMC association, primarily directed to the embedded memory standard specification of the products such as mobile phone or tablet computer.
A clear superiority of EMMC is to be integrated with a controller in a package, it provides standard interface and manages flash memory, makes to go smoothly
Machine manufacturer can be absorbed in the other parts of product development, and shorten the time that product is released to market.
EMMC is the important easy loss device of mobile terminal, and since EMMC can not generally be replaced, service life will be direct
Influence the service life of mobile terminal.Currently, EMMC have write-in number limitation, according to the type of EMMC storage unit its
It is as follows that number limitation is written: Storage Unit Type is SLC (Signle Level Cell), and in about 100,000 write-in service life, price is most
It is expensive；Storage Unit Type is MLC (Multi Level Cell), and in about 3000~10000 write-in service life, price is general；Storage
Cell type is TLC (Trinary Level Cell), about 500 write-in service life, cheap.
In general, user must can reach the write-in limited number of times of EMMC using the mobile terminal several years, it is especially most
Manufacturer's profit-push often only needs can easily reach within 1 to two years using its write-in limited number of times of the EMMC of TLC type,
The storage unit of EMMC just has in the presence of the possibility damaged, and the file that will lead to user's preservation after storage unit damage is lost, or
It causes system to be operating abnormally, or even is not available.
Therefore, the existing technology needs to be improved and developed.
Summary of the invention
The technical problem to be solved in the present invention is that the method for writing data and system of a kind of mobile terminal EMMC are provided,
Aiming to solve the problem that the limited number of times of existing mobile terminal EMMC write-in is easier to reach causes storage unit damage that system is caused to transport
The problem of going extremely, or even not being available.
The technical proposal for solving the technical problem of the invention is as follows:
A kind of method for writing data of mobile terminal EMMC, wherein include:
A, when detecting EMMC write operation, the data for needing to be written EMMC are obtained；
B, in the idle memory region of EMMC, search whether there is company identical with the data for needing to be written EMMC
Continuous storage region, and if it exists, then follow the steps C；If it does not exist, D is thened follow the steps；
C, EMMC is not written into the data, the first address in the Coutinuous store region is fed back to the file of mobile terminal
System is to complete data write-in；
D, the data are written in the idle memory region of EMMC, and the storage region that the data will be written in EMMC
First address feed back to the file system of mobile terminal with complete data write-in.
The method for writing data of the mobile terminal EMMC, wherein the step A is specifically included:
The operational order that A1, identification each operate mobile terminal EMMC obtains if operational order is write order
Take the data for needing to be written EMMC.
The method for writing data of the mobile terminal EMMC, wherein the step C is specifically included:
C1, the first address for obtaining the Coutinuous store region, and the first address is fed back to the file system of mobile terminal
System is to complete data write-in.
The method for writing data of the mobile terminal EMMC, wherein the step D is specifically included:
D1, the data are written in the idle memory region of EMMC；
D2, the first address that the storage region of the data is written in EMMC is obtained, and the first address is fed back into movement
The file system of terminal is to complete data write-in.
A kind of data writing systems of mobile terminal EMMC, wherein include:
Data acquisition module, for obtaining the data for needing to be written EMMC when detecting EMMC write operation；
Judgment module is stored, needs to be written with described in the idle memory region of EMMC, searching whether to exist
The identical Coutinuous store region of the data of EMMC, and if it exists, then execute the first Data write. module；If it does not exist, then is executed
Two Data write. modules；
First Data write. module, for EMMC not being written in the data, by the first address in the Coutinuous store region
The file system of mobile terminal is fed back to complete data write-in；
Second Data write. module for the data being written in the idle memory region of EMMC, and will be write in EMMC
The first address for entering the storage region of the data feeds back to the file system of mobile terminal to complete data write-in.
The data writing systems of the mobile terminal EMMC, wherein the data acquisition module includes:
Command recognition unit, the operational order that each operates mobile terminal EMMC for identification, if operation life
Enabling is write order, then obtains the data for needing to be written EMMC.
The data writing systems of the mobile terminal EMMC, wherein first Data write. module includes: the first number
According to writing unit, for obtaining the first address in the Coutinuous store region, and the first address is fed back to the text of mobile terminal
Part system is to complete data write-in.
The data writing systems of the mobile terminal EMMC, wherein second Data write. module includes:
Second data write unit, for the data to be written in the idle memory region of EMMC；
Address acquisition unit, for obtaining the first address that the storage region of the data is written in EMMC, and by the head
Address feeds back to the file system of mobile terminal to complete data write-in.
The method for writing data and system of a kind of mobile terminal EMMC provided by the present invention, efficiently solves existing shifting
The limited number of times of dynamic terminal EMMC write-in, which is easier to reach, causes storage unit damage that system is caused to be operating abnormally, or even can not make
With the problem of, by when detecting EMMC write operation, obtain the data for needing to be written EMMC；In the free storage of EMMC
In domain, search whether there is Coutinuous store region identical with the data for needing to be written EMMC, and if it exists, then will not be described
EMMC is written in data, and the file system that the first address in the Coutinuous store region feeds back to mobile terminal is write with completing data
Enter；If it does not exist, then the data are written in the idle memory region of EMMC, and the storage that the data will be written in EMMC
The first address in region feeds back to the file system of mobile terminal to complete data write-in；To reduce writing for mobile terminal EMMC
Indegree can effectively solve current EMMC write-in number limitation and be easier to be reached to cause storage unit damage that system is caused to run
Extremely, not the problem of or even not being available；To achieve the purpose that extend the service life of EMMC, brings and greatly facilitate.
Detailed description of the invention
Fig. 1 is the flow chart of the method for writing data preferred embodiment of mobile terminal EMMC provided by the invention.
Fig. 2 is the structural block diagram of the data writing systems preferred embodiment of mobile terminal EMMC provided by the invention.
Specific embodiment
The present invention provides the method for writing data and system of a kind of mobile terminal EMMC, to make the purpose of the present invention, technology
Scheme and advantage are clearer, clear, and the present invention is described in more detail as follows in conjunction with drawings and embodiments.It should manage
Solution, the specific embodiments described herein are merely illustrative of the present invention, is not intended to limit the present invention.
Referring to Fig. 1, Fig. 1 is the process of the method for writing data preferred embodiment of mobile terminal EMMC provided by the invention
Figure, as shown, the described method comprises the following steps:
Step S100, when detecting EMMC write operation, the data for needing to be written EMMC are obtained；
Step S200, in the idle memory region of EMMC, search whether exist and the data for needing to be written EMMC
Identical Coutinuous store region, and if it exists, then follow the steps S300；If it does not exist, S400 is thened follow the steps；
Step S300, EMMC is not written into the data, the first address in the Coutinuous store region is fed back to mobile whole
The file system at end is to complete data write-in；
Step S400, the data are written in the idle memory region of EMMC, and the data will be written in EMMC
The first address of storage region feeds back to the file system of mobile terminal to complete data write-in.
Above-mentioned steps are described in detail below with reference to specific embodiment.
In the step s 100, when detecting EMMC write operation, the data for needing to be written EMMC are obtained.Specifically,
It is exactly the operational order that mobile terminal receives user, detects the operational order present in it to mobile terminal EMMC, identification is every
One operational order operated to mobile terminal EMMC, if operational order is write order, acquisition needs to be written EMMC's
Data.For example user is saved certain photo to EMMC(for example RAM card) in, due to for write order (namely write-in number
According to order), then obtaining the data of the photo.
In step s 200, it in the idle memory region of EMMC, searches whether to exist and with described needs to be written EMMC's
The identical Coutinuous store region of data, and if it exists, then follow the steps S300；If it does not exist, S400 is thened follow the steps.It is specific next
It says, the idle memory region of EMMC, that is to say, that for example RAM card has 1G memory space, has stored the number of 0.3G above
According to then remaining 0.7G is then idle memory region.Then search whether exist and the needs in idle memory region
The identical Coutinuous store region of data of EMMC is written.For example, if idle memory region is 0.7G, need to be written EMMC's
Data are certain photo, size 10M.Search whether that there are the identical data of 10M in the idle memory region of 0.7G.This be because
For if there is data (for example photo) to be stored in EMMC before, user deletes the photo, has shown the photo on mobile terminals
Be deleted, but in fact, the data of the photo still there is this is also why to be deleted in RAM card in EMMC
The reason of can data be restored.
If the storage region of these data is capped, for example user re-writes other data, then former data then may
It looks for and not returning；If the storage region of these data is not covered with, be for example always it is idle, then former data then very big possible quilt
It gives for change.The present invention is based on this point, if searching in idle memory region in the presence of identical as the data for needing to be written EMMC
Coutinuous store region, then show the mobile terminal EMMC of user, that is, identical data were once written in RAM card, and
In idle memory region, then being specifically re-writing for user, the present invention is then not necessarily to be written in EMMC again same
Data, it is only necessary to Coutinuous store region identical with the data for needing to be written EMMC is reused from idle memory region
Data, that is, execute step S300, not by the data be written EMMC, by the first address in the Coutinuous store region
The file system of mobile terminal is fed back to complete data write-in.It is equivalent to and is given for change from idle memory region and need that EMMC is written
The identical data of data, without being repeatedly written.The first address in the Coutinuous store region is fed back to the file of mobile terminal
System, the file system of such mobile terminal can show the data for needing to be written EMMC, have been written into, after user can carry out
Continuous processing, so as to complete data write-in.
Correspondingly, identical as the data for needing to be written EMMC if it does not exist if in the idle memory region of EMMC
Coutinuous store region, then then show user be not written in the idle memory region of mobile terminal it is described needs write
Enter the data of EMMC, then according to the data writing mode of conventional EMMC, the data be written in the idle memory region of EMMC,
And the file system that the first address that the storage region of the data is written in EMMC feeds back to mobile terminal is write with completing data
Enter, that is, step S400.
Preferably, each EMMC operational order is judged in step S100, if write order, then obtains needs and write
Enter the data of EMMC.An EMMC, which is operated, in the present embodiment includes: operational order, comprising: write order, read command and control life
It enables；Operation data, if it is to need to be written the data of EMMC that operational order, which is write order operation data,；For read command, control life
The operation data of order is not described herein.When detecting the operation for wanting user to EMMC, the operational order of the operation is obtained, is sentenced
Whether disconnected operational order is write order, if YES then obtaining operation data, which is to need to be written the data of EMMC.
Preferably, in the step 200, with q [1], q [2] ..., q [n] successively indicate to need to be written n of EMMC
Data cell, with g [1], g [2] ..., g [m] successively indicate the storage unit of EMMC, wherein n, m are natural number and n < m；When
And if only if g [k], g [k+1] ..., g [k+n-1] it is whether all idle, and g [k] is equal with q [1] and g [k+1] and q [2] phase
Deng ... when g [k+n-1] is equal with q [n], just indicate in the idle memory region of EMMC exist and write with the needs
Enter the identical Coutinuous store region of data of EMMC；Otherwise, it is not present；Wherein k is natural number.About specifically how determining whether
It is equal, be simply described as follows, from g [1], g [2] ..., find in g [m] with q [1] identical g [k], then successively judge g
[2] whether equal with g [k+1], continue to judge whether g [3] and g [k+2] are equal if equal.If g [2] and g [k+1] not phase
Deng, then from g [1], g [2] ..., find in g [m] it is next with q [1] identical storage unit.
Preferably, in step S300, the first address in the Coutinuous store region is obtained, and the first address is fed back to
The file system of mobile terminal is to complete data write-in.Specifically, the first address in the Coutinuous store region that will acquire
Feed back to file system；Know that the EMMC write operation transmitted by it is completed and writes data into described in EMMC as file system
In the Coutinuous store region of first address.
It preferably, will be in the idle memory region of data write-in EMMC in step S400；It obtains and is written in EMMC
The first address of the storage region of the data, and the file system that the first address feeds back to mobile terminal is write with completing data
Enter.
The method for writing data of mobile terminal EMMC provided by the invention is obtained by detecting EMMC write operation
Need to be written the data of EMMC；In the idle memory region of EMMC, the data phase for having with said write EMMC is searched whether
Same Coutinuous store region, and if so, the first address in the Coutinuous store region is fed back to file system, if do not deposited
It is fed back in the idle memory region for then writing data into EMMC, and by the first address that the storage region of data is written in EMMC
File system；It is repeatedly written operation so as to avoid same data, reduces user to a certain extent and EMMC is write
Indegree；It current EMMC write-in number limitation can effectively be solved is easier to be reached to cause storage unit damage that system is caused to transport
The problem of going extremely, or even not being available；To achieve the purpose that extend EMMC service life；It provides and greatly facilitates.
Based on the method for writing data of above-mentioned mobile terminal EMMC, the embodiment of the invention also provides a kind of mobile terminals
The data writing systems of EMMC, as shown in Figure 2, comprising:
Data acquisition module 10, for obtaining the data for needing to be written EMMC when detecting EMMC write operation；Specifically
As described in step S100；
Judgment module 20 is stored, needs to be written with described in the idle memory region of EMMC, searching whether to exist
The identical Coutinuous store region of the data of EMMC, and if it exists, then execute the first Data write. module 30；If it does not exist, then it executes
Second Data write. module 40；Specifically as described in step S200；
First Data write. module 30, for EMMC not being written in the data, by the first ground in the Coutinuous store region
Location feeds back to the file system of mobile terminal to complete data write-in；Specifically as described in step S300；
Second Data write. module 40, for the data being written in the idle memory region of EMMC, and will be in EMMC
The first address that the storage region of the data is written feeds back to the file system of mobile terminal to complete data write-in；It is specific such as to walk
Described in rapid S400.
Further, the data acquisition module 10 includes:
Command recognition unit, the operational order that each operates mobile terminal EMMC for identification, if operation life
Enabling is write order, then obtains the data for needing to be written EMMC.
Further, first Data write. module 30 includes: the first data write unit, described continuous for obtaining
The first address of storage region, and the first address is fed back into the file system of mobile terminal to complete data write-in.
Further, second Data write. module 40 includes:
Second data write unit, for the data to be written in the idle memory region of EMMC；
Address acquisition unit, for obtaining the first address that the storage region of the data is written in EMMC, and by the head
Address feeds back to the file system of mobile terminal to complete data write-in.
Further, the mobile terminal is the equipment with EMMC such as mobile phone, tablet computer or smartwatch.
In conclusion the method for writing data and system of a kind of mobile terminal EMMC provided by the invention, when detecting
When EMMC write operation, the data for needing to be written EMMC are obtained；In the idle memory region of EMMC, search whether exist and institute
State the identical Coutinuous store region of data for needing to be written EMMC, and if it exists, then EMMC is not written into the data, by the company
The first address of continuous storage region feeds back to the file system of mobile terminal to complete data write-in；If it does not exist, then by the number
In idle memory region according to write-in EMMC, and the first address that the storage region of the data is written in EMMC is fed back into movement
The file system of terminal is to complete data write-in；To reduce the write-in number of mobile terminal EMMC, can effectively solve at present
EMMC write-in number limitation, which is easier to be reached, causes storage unit damage that system is caused to be operating abnormally, or even what is be not available ask
Topic；To achieve the purpose that extend the service life of EMMC, brings and greatly facilitate.
It should be understood that the application of the present invention is not limited to the above for those of ordinary skills can
With improvement or transformation based on the above description, all these modifications and variations all should belong to the guarantor of appended claims of the present invention
Protect range.
Claims (2)
1. a kind of method for writing data of mobile terminal EMMC characterized by comprising
A, when detecting EMMC write operation, the data for needing to be written EMMC are obtained；
B, it in the idle memory region of EMMC, searches whether continuously to deposit in the presence of identical with the data for needing to be written EMMC
Storage area domain, and if it exists, then follow the steps C；If it does not exist, D is thened follow the steps；
C, EMMC is not written into the data, the first address in the Coutinuous store region is fed back to the file system of mobile terminal
To complete data write-in；
D, the data are written in the idle memory region of EMMC, and the head of the storage region of the data will be written in EMMC
Address feeds back to the file system of mobile terminal to complete data write-in；
In the step B, the data for needing to be written EMMC include n data cell, are successively denoted as q [1], q [2] to q
[n], the storage region include m storage unit, are successively denoted as g [1], g [2] to g [m], wherein n, m be natural number and n < m,
It is all idle and if only if g [k], g [k+1] to g [k+n-1], and g [k] is equal with q [1] and g [k+1] is equal with q [2], until g
When [k+n-1] is equal with q [n], then it represents that exist in the idle storage of EMMC identical as the data for needing to be written EMMC
Coutinuous store region, wherein k be natural number.
2. a kind of data writing systems of mobile terminal EMMC characterized by comprising
Data acquisition module, for obtaining the data for needing to be written EMMC when detecting EMMC write operation；
Judgment module is stored, needs to be written EMMC's with described in the idle memory region of EMMC, searching whether to exist
The identical Coutinuous store region of data, and if it exists, then execute the first Data write. module；If it does not exist, then the second data are executed
Writing module；
First Data write. module feeds back the first address in the Coutinuous store region for EMMC not being written in the data
To the file system of mobile terminal to complete data write-in；
For the data being written in the idle memory region of EMMC, and institute will be written in second Data write. module in EMMC
The first address for stating the storage region of data feeds back to the file system of mobile terminal to complete data write-in；
The data for needing to be written EMMC include n data cell, are successively denoted as q [1], q [2] to q [n], the memory block
Domain includes m storage unit, is successively denoted as g [1], g [2] to g [m], and wherein n, m are natural number and n < m, and if only if g [k], g
[k+1] is all idle to g [k+n-1], and g [k] is equal with q [1] and g [k+1] is equal with q [2], until g [k+n-1] and q [n] phase
Whens equal, then it represents that there is Coutinuous store region identical with the data for needing to be written EMMC in the idle storage of EMMC,
Wherein k is natural number.
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| CN107066508A (en) * | 2017-01-18 | 2017-08-18 | 新华三技术有限公司 | Information snap method, equipment and CPU |
| CN111176566B (en) * | 2019-12-25 | 2023-09-19 | 山东方寸微电子科技有限公司 | eMMC read-write control method supporting queue command and storage medium |
| CN112181303A (en) * | 2020-09-29 | 2021-01-05 | 广东艾科技术股份有限公司 | Data storage method and device, computer equipment and storage medium |
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