CN105812891A - Method and system for storing data in screen end plate of modular television - Google Patents
Method and system for storing data in screen end plate of modular television Download PDFInfo
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- CN105812891A CN105812891A CN201410839051.3A CN201410839051A CN105812891A CN 105812891 A CN105812891 A CN 105812891A CN 201410839051 A CN201410839051 A CN 201410839051A CN 105812891 A CN105812891 A CN 105812891A
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Abstract
The invention provides a method and a system for storing data in a screen end plate of a modular television. A fixed data area, a common data area and an uncommon data area are partitioned from a flash of the screen end plate, data stored in the flash is written into a memory, the data is normally read in the memory when the screen end plate runs, and only the function of the flash data area is called and refreshed in the system according to needs, so that the frequency of rewriting the data in the flash is reduced and the flash operating burden of an MCU (Micro Controller Unit) is also reduced; the data updated frequently is alternatively rewritten in multiple areas, so that the single write-in frequency is also reduced, the service life of the flash in the screen end plate of the intelligent television is effectively prolonged and the running rate of the screen end plate system is effectively improved.
Description
Technical field
The present invention relates to intelligent television field, the method and system of in particular a kind of module television screen end plate data storage.
Background technology
Module TV is divided into TV at the screen end plate of display part and the smart card end of intelligent function module；Some parameter configuration that screen end plate needs to preserve the parameter configuration of oneself and smart card end sends over, with need not from these parameters newly configured after ensureing start every time.The function realized due to screen end plate is relatively easy, and code and data are few.Adopt the relatively small spiflash of capacity as memory carrier, to save hardware resource more.Even if the characteristic of spiflash is only to write data to be also required to a block is re-write, and the write number of times of the block of spiflash has the life-span to limit, and the speed of write is also non-normally low.Data write not only shortens the service life of spiflash frequently, has also tied down the operating rate of whole system.
Therefore, prior art existing defects, need to be improved and develop.
Summary of the invention
Present invention aims to the spiflash data write that in above-mentioned prior art, module television screen end plate storage data use frequent, and cause, when flash write number of times is limited and data write, the defect that whole screen end plate system operating rate is low, it is provided that the method and system of a kind of module television screen end plate data storage.
Technical scheme is as follows:
A kind of method of module television screen end plate data storage, wherein, including:
A, flash is divided into fixed data subregion, frequently-used data subregion and the data partition that is of little use；
B, in screen end plate Installed System Memory, distribute the space identical with flash memory area size, and data store in flash are read in the data partition of correspondence in memory headroom；
C, screen end plate system by application program need write data store in the corresponding data partition of memory headroom, and as required by memory headroom data occur amendment data partition be identified after, data partition corresponding in flash is refreshed.
The method of described module television screen end plate data storage, wherein, also includes in described step A:
A1, also mark off in flash for record frequently-used data subregion use information region.
The date storage method of described module television screen end plate, wherein, also includes in described step C:
C1, the data that system is received carry out validation checking, if these data are virtual value, then these data are stored in system memory space, if invalid, return error message.
The method of described module television screen end plate data storage, wherein, described step C includes:
C1, judge in system memory space, in fixed data subregion, whether data are revised, if unmodified, then directly perform step C2, after the data otherwise refreshed in flash in fixed data subregion, perform step C2；
In C2, the data partition that judges to be of little use in system memory space, whether data are revised, if unmodified, then directly perform step C3, after otherwise refreshing in flash the data in data partition that are of little use, perform step C3；
C3, judge in system memory space, in frequently-used data subregion, whether data are revised, if amendment, then end operation, otherwise perform step C4；
C4, judge in flash, whether frequently-used data partition holding number is 1, if 1, the data then refreshed in flash in frequently-used data subregion, if not 1, the frequently-used data subregion corresponding to data finding out amendment the region of information the data refreshed in flash in corresponding frequently-used data subregion are then used from record frequently-used data subregion.
The method of described module television screen end plate data storage, wherein, for being refreshed by data partition corresponding with the data that memory headroom writes in flash to schedule in described step C.
A kind of system of described module television screen end plate data storage, wherein, including: data partition module, internal storage data writing module and Flash data more new module；
Described data partition module, for being divided into fixed data subregion, frequently-used data subregion and the data partition that is of little use by flash；
The data stored in flash for distributing the space identical with flash memory area size in Installed System Memory, and are read in data partition corresponding in memory headroom by described internal storage data writing module；
Described Flash data more new module, for shielding end plate system, the data that application program needs write are stored in the corresponding data partition of memory headroom, and after occurring the data partition of amendment to be identified data in memory headroom as required, data partition corresponding in flash is refreshed.
The system of described module television screen end plate data storage, wherein, described data partition module memory Data write. module, it is additionally operable in flash, mark off the region using information for recording frequently-used data partition holding.
The system of described module television screen end plate data storage, wherein,
Described internal storage data writing module, the data being additionally operable to screen end plate system is received carry out validation checking, if these data are virtual value, then these data are stored in system memory space, if invalid, screen end plate system returns error message.
The system of described module television screen end plate data storage, wherein,
Described Flash data more new module includes: first judges performance element, second judge performance element, the 3rd judge that performance element and the 4th judges performance element:
Described first judges performance element, for whether the data judged in Installed System Memory in fixed data subregion revise evidence, if amendment, then refreshes the data in fixed data subregion；
Described second judges performance element, for judging whether the data being of little use in data partition in Installed System Memory are revised, if amendment, then refreshes the data being of little use in data partition；
Described 3rd judges performance element, for whether the data judged in Installed System Memory frequently-used data partition holding are revised, if amendment, then triggers the 4th and judges that performance element operates；
Described 4th judges performance element, for judging in flash, whether frequently-used data partition holding number is 1, if 1, the data then refreshed in flash in frequently-used data subregion, if not 1, the frequently-used data subregion corresponding to data finding out amendment the region of information the data refreshed in flash in corresponding frequently-used data subregion are then used from record frequently-used data subregion.
The system of described module television screen end plate data storage, wherein, refreshes data partition corresponding with the data that memory headroom writes in flash in Flash data more new module to schedule.
Beneficial effect: the method and system of a kind of module television screen end plate data provided by the present invention storage, by fixed data subregion will be marked off in the flash of screen end plate, frequently-used data subregion and the data partition that is of little use, the data stored in flash are saved in screen end plate Installed System Memory, when screen end plate system is run, normally reading and writing of data performs in internal memory, only call the function refreshing flash data district in systems as required, thus decreasing the number of times that flash data re-writes, decrease MCU and operate the burden of flash, realize multiple subregion re-write in turn updating data frequently, decrease the write number of times to single piece, effectively raise the operating rate of the service life of flash and screen end plate system in Intelligent electric screen end plate.
Accompanying drawing explanation
Fig. 1 is the flow chart of steps of the method for a kind of module television screen end plate data provided by the invention storage.
Fig. 2 be in described method provided by the invention step S3 be embodied as flow chart.
Fig. 3 is the system structure schematic diagram of a kind of module television screen end plate data provided by the invention storage.
Detailed description of the invention
For making the purpose of the present invention, technical scheme and effect clearly, clearly, referring to accompanying drawing examples, the present invention is described in more detail.Should be appreciated that specific embodiment described herein is only in order to explain the present invention, is not intended to limit the present invention.
The flash used owing to shielding end plate in general module TV is the flash with spi interface, as long as and the characteristic of spiflash is for there to be data to modify, then whole flash is wiped and re-writes, therefore to reduce the number of times that flash data re-writes, improve its service life, the method that the invention provides the storage of a kind of module television screen end plate data, as it is shown in figure 1, said method comprising the steps of:
S1, flash is divided into fixed data subregion, frequently-used data subregion and the data partition that is of little use.
First this step provides a calling interface intbundle_int (void) for screen end plate system.Carry out, in initialization procedure, carrying out the loading of data in system electrification.
Being loaded as of described data, first this spiflash of pin carries out hardware initialization, arranges size and the data storage partition initial address on spiflash of the erasing size of block, data storage partition according to the size of spiflash.The driving function of the reading and writing of concrete spiflash, erasing is mounted by function pointer.Dock with spiflash with this.The information of initialization data partition holding, calculates each partition size, the number etc. of frequently-used data subregion.Then the data that will be stored on spiflash according to partition information are read in internal memory.
In this step, owing to needs mark off fixed data subregion, frequently-used data partition holding and the data partition that is of little use in flash, therefore after flash is carried out hardware initialization, need to according to its amount of storage having, its partition holding is carried out subregion, calculate the size of each subregion and the original position in flash that each subregion distributes.Having very strong subjectivity owing to the area size of flash being divided, the calculating of therefore concrete each partition size can have been arranged can also have been completed by user-defined form by system default.
Concrete; to those skilled in the art; it is readily appreciated that; in described fixed data subregion stored for fixed data; for module TV, fixed data is the configuration data that this module TV has indicative significance, the facility information data of such as this module TV; it is the configuration data in custom menu for the data of storage in frequently-used data partition holding, the volume data that such as user usually can use；Being of little use in data partition stored data is the configuration data in factory menu, the data that such as module TV uses when it being carried out factory testing when dispatching from the factory.Therefore when, after the subregion marking off above-mentioned three kinds of data storage in flash, in flash, the data of storage can be easy to corresponding storage in each subregion.
S2, screen end plate Installed System Memory in distribute space one piece identical with flash memory area size.
In this step, selecting to distribute space one piece identical with memory area size in flash in Installed System Memory, in flash, the data of storage are read in this memory headroom, it is simple to application program gets the data of needs from memory headroom.
S3, screen end plate system by application program need write data store in the corresponding data partition of memory headroom, and as required by memory headroom data occur amendment data partition be identified after, data partition corresponding in flash is refreshed.
After in flash, the data correspondence of storage stores partition holding, the data that screen end plate system will store in flash, and corresponding to data, the partition holding information of storage is all read in Installed System Memory.Owing to storage has the configuration data information of storage in flash in Installed System Memory, therefore when shielding end plate system and needing to call the configuration data in certain flash, then directly can read this configuration data from Installed System Memory, need not read from flash.
Concrete, provide a calling interface intbundle_get (unsignedintkey, void*value) for screen end system.Screen end system as required, reads, from the data field having been loaded into internal memory, the data needed.Screen end application program incoming key value when calling the interface reading data, navigates to the data member in the subregion of place according to key value, this data member is carried out validity check, if checking and not passing through, returns error message.If these data are returned to by effective data calls function.
Further, in this step when screen end plate system receives new configuration data, when needing it is stored, then first it is saved in Installed System Memory, in the partition holding corresponding to Installed System Memory this configuration data stored, this configuration data is updated.
When the configuration data specifically carrying out Installed System Memory writes, it is possible to provide a calling interface intbundle_set (unsignedintkey, void*value) for screen end plate system.Screen end plate systematic difference program calls this interface in the place needing write data, the incoming concrete data with the key value corresponding to write data and needs storage, data write flow process confirms corresponding with which data in Installed System Memory partition holding according to key value.Then these data are carried out validity check.If checking and passing through, these data are first written to internal memory.Here the data partition of internal memory is only write in data write, rather than often one data of amendment just carry out spiflash re-write operation.
When in flash, the data of storage need to update, the partition holding in Installed System Memory with data renewal is made a look up, identify all partition holdings carrying out data renewal within this time period, and carry out re-writing of data by flash updates corresponding partition holding with the data of Installed System Memory.
Refreshing in spiflash operation of this step, the data area in whole internal memory is checked, the data partition having amendment is re-write the operation of spiflash.Accordingly even when carried out multiple reading and writing data, also have only to perform the read-write operation of a spiflash.
Concrete, in described flash, the data of storage when needing and update are: during screen end plate system cut-off or when being updated to schedule.User can be arranged while screen end plate system cut-off, and the data in flash are updated, it is also possible to for timing, the data in flash is updated.
In order to enable better to reduce the number of times re-write of flash, also include in described step S1:
S11, screen end plate flash in also mark off for record frequently-used data subregion use information region.
If the amount of ram of flash is relatively big, then, in the subregion carrying out data storage partition, frequently-used data partition holding can be divided into multiple, thus realizing the multiple subregion of data frequently is write in turn.Position therefore to be easy to the data to updating in multiple frequently-used data partition holdings, when the partition holding of flash is divided, a region using information for recording frequently-used data partition holding can also be marked off, it is simple to therefrom Search and Orientation goes out in which frequently-used data partition holding concrete to occur in that data update.
In order to reduce when carrying out data storage, it is possible to the data that can cause occur abnormal, reduce when module TV uses, and configuration data transfers failure, it is impossible to complete corresponding operation, also includes in described step S2:
S21, the configuration data that screen end plate system reception is inputted carry out validation checking, if this configuration data is virtual value, then this configuration data are stored in Installed System Memory, if invalid, screen end plate system returns error message.
In order to realize carrying out the partition holding carrying out data renewal in Installed System Memory searching and the data in the partition holding in flash carried out corresponding renewal accurately, as in figure 2 it is shown, described step S3 specifically includes herein below:
Whether S31, the data judged in Installed System Memory in fixed data subregion are revised, if unmodified, then directly perform step S32, otherwise perform step S311, after the data refreshed in flash in fixed data subregion, perform step S32.
S32, judge whether the data being of little use in data partition in Installed System Memory are revised, if unmodified, then directly perform step S33, otherwise perform step S321, after refreshing the data in data partition that are of little use in flash, perform step S33.
Whether S33, the data judged in frequently-used data partition holding are revised, if unmodified, then end operation, otherwise perform step S34.
S34, judge whether frequently-used data partition holding number is 1, if 1, then perform step S345, refresh the data in frequently-used data partition holding, if not 1, the frequently-used data subregion corresponding to data finding out amendment the region of information the data refreshed in flash in corresponding frequently-used data subregion are then used from record frequently-used data subregion.
nullConcrete，Due to when frequently-used data subregion more than one in flash，Need to be on earth there occurs in which frequently-used data subregion data update position，So shown in step S341，First the calculating of skew in new data partition is carried out，Step S341 offsets offset=-1 by subregion and is set as that being arranged in primary frequently-used data partition holding starts，Find out the original position change of frequently-used data subregion，If the region skew of the frequently-used data subregion after updating in computing system，When the data of the frequently-used data partition holding judging offset=1 there occurs renewal，Then perform step S342: wipe the data of the frequently-used data subregion corresponding with offset=1，And perform step S343: re-write,Data in the frequently-used data subregion of offset=1.
Data in order to enable to carry out quickly positioning and being received to the data of storage in Installed System Memory more accurately are saved in corresponding partition holding accurately, the data of storage are refreshed, also includes in described step S2:
S22, the screen end plate system key value of configuration data according to input, position the partition holding at this configuration data, and finds out in the partition holding of Installed System Memory data corresponding thereto.
Based on the above method, present invention also offers the system of a kind of described module television screen end plate data storage, as it is shown on figure 3, described system includes: data partition module 10, internal storage data writing module 20 and Flash data more new module 30；
Described data partition module 10, for being divided into fixed data subregion, frequently-used data subregion and the data partition that is of little use by flash；
The data stored in flash for distributing space one piece identical with flash memory area size in Installed System Memory, and are read in data partition corresponding in memory headroom by described internal storage data writing module 20；
Described Flash data more new module 30, for shielding end plate system, the data that application program needs write are stored in the corresponding data partition of memory headroom, and after occurring the data partition of amendment to be identified data in memory headroom as required, data partition corresponding in flash is refreshed.
Described data partition module 10, is additionally operable to mark off the region using information for recording frequently-used data partition holding in flash.
Described internal storage data writing module 20, the data being additionally operable to screen end plate system is received carry out validation checking, if these data are virtual value, then these data are stored in system memory space, if invalid, screen end plate system returns error message.
Described Flash data more new module 30 includes: first judges performance element, second judge performance element, the 3rd judge that performance element and the 4th judges performance element:
Described first judges performance element, for whether the data judged in Installed System Memory in fixed data subregion are revised, if amendment, then refreshes the data in fixed data subregion；
Described second judges performance element, for judging whether the data being of little use in data partition in Installed System Memory are revised, if amendment, then refreshes the data being of little use in data partition；
Described 3rd judges performance element, for whether the data judged in Installed System Memory frequently-used data partition holding are revised, if amendment, then triggers the 4th and judges that performance element operates；
Described 4th judges performance element, for judging in flash, whether frequently-used data partition holding number is 1, if 1, the data then refreshed in flash in frequently-used data subregion, if not 1, the frequently-used data subregion corresponding to data finding out amendment the region of information the data refreshed in flash in corresponding frequently-used data subregion are then used from record frequently-used data subregion.
Data partition corresponding with the data that memory headroom writes in flash is refreshed by Flash data more new module to schedule.
The method and system of a kind of module television screen end plate data provided by the present invention storage, by fixed data subregion will be marked off in the flash of screen end plate, frequently-used data subregion and the data partition that is of little use, the data stored in flash are saved in screen end plate Installed System Memory, when screen end plate system is run, normally reading and writing of data performs in internal memory, only call the function refreshing flash data district in systems as required, thus decreasing the number of times that flash data re-writes, decrease MCU and operate the burden of flash, realize multiple subregion re-write in turn updating data frequently, decrease the write number of times to single piece, effectively raise the operating rate of the service life of flash and screen end plate system in Intelligent electric screen end plate.
It should be appreciated that for those of ordinary skills, it is possible to improved according to the above description or converted, and all these are improved and convert the protection domain that all should belong to claims of the present invention.
Claims (10)
1. the method for a module television screen end plate data storage, it is characterised in that including:
A, flash is divided into fixed data subregion, frequently-used data subregion and the data partition that is of little use；
B, screen end plate Installed System Memory in distribute the space identical with flash memory area size；
C, screen end plate system by application program need write data store in the corresponding data partition of memory headroom, and as required by memory headroom data occur amendment data partition be identified after, data partition corresponding in flash is refreshed.
2. the method for module television screen end plate data storage according to claim 1, it is characterised in that also include in described step A:
A1, also mark off in flash for record frequently-used data subregion use information region.
3. the date storage method of module television screen end plate according to claim 1, it is characterised in that also include in described step C:
C1, the data that system is received carry out validation checking, if these data are virtual value, then these data are stored in system memory space, if invalid, return error message.
4. the method for module television screen end plate data storage according to claim 2, it is characterised in that described step C includes:
C1, judge in system memory space, in fixed data subregion, whether data are revised, if unmodified, then directly perform step C2, after the data otherwise refreshed in flash in fixed data subregion, perform step C2；
In C2, the data partition that judges to be of little use in system memory space, whether data are revised, if unmodified, then directly perform step C3, after otherwise refreshing in flash the data in data partition that are of little use, perform step C3；
C3, judge in system memory space, in frequently-used data subregion, whether data are revised, if amendment, then end operation, otherwise perform step C4；
C4, judge in flash, whether frequently-used data partition holding number is 1, if 1, the data then refreshed in flash in frequently-used data subregion, if not 1, the frequently-used data subregion corresponding to data finding out amendment the region of information the data refreshed in flash in corresponding frequently-used data subregion are then used from record frequently-used data subregion.
5. the method for module television screen end plate data storage according to claim 1, it is characterised in that for schedule data partition corresponding with the data that memory headroom writes in flash being refreshed in described step C.
6. the system of a described module television screen end plate data storage, it is characterised in that including: data partition module, internal storage data writing module and Flash data more new module；
Described data partition module, for being divided into fixed data subregion, frequently-used data subregion and the data partition that is of little use by flash；
The data stored in flash for distributing the space identical with flash memory area size in Installed System Memory, and are read in data partition corresponding in memory headroom by described internal storage data writing module；
Described Flash data more new module, for shielding end plate system, the data that application program needs write are stored in the corresponding data partition of memory headroom, and after occurring the data partition of amendment to be identified data in memory headroom as required, data partition corresponding in flash is refreshed.
7. the system of module television screen end plate data storage according to claim 6, it is characterised in that described data partition module, is additionally operable to mark off the region using information for recording frequently-used data partition holding in flash.
8. the system of module television screen end plate data storage according to claim 6, it is characterised in that
Described internal storage data writing module, the data being additionally operable to screen end plate system is received carry out validation checking, if these data are virtual value, then these data are stored in system memory space, if invalid, screen end plate system returns error message.
9. the system of module television screen end plate data storage according to claim 7, it is characterised in that
Described Flash data more new module includes: first judges performance element, second judge performance element, the 3rd judge that performance element and the 4th judges performance element:
Described first judges performance element, for whether the data judged in Installed System Memory in fixed data subregion are revised, if amendment, then refreshes the data in fixed data subregion；
Described second judges performance element, for judging whether the data being of little use in data partition in Installed System Memory are revised, if amendment, then refreshes the data being of little use in data partition；
Described 3rd judges performance element, for whether the data judged in Installed System Memory frequently-used data partition holding are revised, if amendment, then triggers the 4th and judges that performance element operates；
Described 4th judges performance element, for judging in flash, whether frequently-used data partition holding number is 1, if 1 data refreshed in flash in frequently-used data subregion, if not 1, the frequently-used data subregion corresponding to data finding out amendment the region of information the data refreshed in flash in corresponding frequently-used data subregion are then used from record frequently-used data subregion.
10. the system of module television screen end plate data storage according to claim 6, it is characterised in that to schedule data partition corresponding with the data that memory headroom writes in flash is refreshed in Flash data more new module.
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