CN101883204A - TV EDID self-checking and updating method and TV core plate - Google Patents
TV EDID self-checking and updating method and TV core plate Download PDFInfo
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- CN101883204A CN101883204A CN200910107066XA CN200910107066A CN101883204A CN 101883204 A CN101883204 A CN 101883204A CN 200910107066X A CN200910107066X A CN 200910107066XA CN 200910107066 A CN200910107066 A CN 200910107066A CN 101883204 A CN101883204 A CN 101883204A
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- 238000000034 method Methods 0.000 title claims abstract description 43
- 230000008569 process Effects 0.000 claims abstract description 20
- 238000012795 verification Methods 0.000 claims description 25
- 230000003139 buffering effect Effects 0.000 claims description 7
- 238000012546 transfer Methods 0.000 claims description 3
- 230000006870 function Effects 0.000 description 5
- 230000001771 impaired effect Effects 0.000 description 4
- 230000008439 repair process Effects 0.000 description 4
- 239000012467 final product Substances 0.000 description 3
- 230000002950 deficient Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
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- 230000008859 change Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
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Abstract
The invention discloses a TV EDID self-checking and updating method which at least comprises the following steps: A. receiving an EDID checking and updating instruction, and comparing current EDID and preset EDID; B. comparing to obtain consistent data of two extension display identities, showing that the current EDID has no damaged information and ending a program process; if the two EDIDs are inconsistent, executing step C; C. receiving the instruction of a user, if the instruction of the user selects to update the EDID, executing an EDID updating program, displaying and completing the information after updating, and ending the program process; and if the instruction of the user selects not to update the EDID, showing that the current EDID has been damaged, and ending the program process. The invention also correspondingly provides a TV core plate. The invention facilitates the development and debugging of TV sets, and reduces the after-sales cost.
Description
Technical field
The present invention relates to field of television, relate in particular to self-checking and update method and the TV core plate of a kind of television set EDID.
Background technology
At present, EDID (the Extended Display Identification Data that panel TV needs, the extending display identification data) information is in batches EDID to be upgraded to corresponding EEPROM (ElectricallyErasable Programmable Read Only Memory earlier, EEPROM (Electrically Erasable Programmable Read Only Memo)), and then the EEPROM paster that will store EDID to the television set chip plate.EDID information among the EEPROM is damaged under special circumstances, has two kinds of methods to upgrade: the firstth, this EEPROM is taken off from TV, and paste again after upgrading is good and go back, perhaps directly replace with a new EEPROM who stores EDID; The secondth, on the machine core board of TV, reserve the I that is communicated with EEPROM
2C (Inter-Integrated Circuit, universal serial bus) interface is connected to this interface with outside upgrading tool and upgrades.First method upgrading EDID is more loaded down with trivial details, EEPROM need be taken off to paste after the upgrading again and go back, moreover in the paster process, owing to reasons such as high temperature, agree with EDID information to damage once more easily, causes the upgrading failure.EDID is relatively simple with the second method upgrading, only needing self-respect to upgrade EDID once more with external tool after discovery EDID is incorrect gets final product, but EDID makes mistakes after TV is sold to terminal client, needs the professional person just can upgrade, inconvenient after-sale service.
In summary, the television set EDID method for updating of described prior art obviously exists inconvenience and defective, so be necessary to be improved on reality is used.
Summary of the invention
At above-mentioned defective, the object of the present invention is to provide self-checking and update method and the TV core plate of a kind of television set EDID, make the verification of television set EDID and renewal easier, make things convenient for the debugging of the exploitation of TV, increase work efficiency, and reduce after cost.
To achieve these goals, the invention provides self-checking and the update method of a kind of television set EDID, described method comprises the steps: at least
A, reception extending display identification data check update instruction, more current extending display identification data and the extending display identification data that preset;
B, relatively obtain two extending display identification data consistents, and show described current bad information of extending display identification data lossless, then termination routine flow process; If two extending display identification data are inconsistent, then execution in step C;
C, reception user instruction if described user instruction selects to carry out the extending display identification Data Update, are carried out extending display identification Data Update program, and information was finished in demonstration after renewal was finished, and the termination routine flow process; If described user instruction is selected not carry out the extending display identification Data Update, show that then current extending display identification data damage, then the termination routine flow process.
According to television set extending display identification data oneself's verification of the present invention and update method, described steps A further comprises:
Program connects given EEPROM at I by hardware
2This EEPROM of address search on the C bus finds the extending display identification data that read behind the described EEPROM wherein in the buffering area of internal memory.
According to television set extending display identification data oneself's verification of the present invention and update method, described current extending display identification storage is in EEPROM.
According to television set extending display identification data oneself's verification of the present invention and update method, the described extending display identification storage that presets is in FLASH.
The present invention provides a kind of TV core plate accordingly, and described TV core plate comprises a CPU at least, and described CPU comprises:
At least one verification contrast module, be used to receive extending display identification data check update instruction after, more current extending display identification data and the extending display identification data that preset;
At least one selection module is used for relatively obtaining two extending display identification data consistents in described verification contrast module, and shows described current bad information of extending display identification data lossless, selects not carry out Data Update; Described verification contrast module relatively obtain two extending display identification data inconsistent after, select to carry out and transfer to data update module and handle;
At least one data update module after being used to receive the user and determining to carry out extending display identification Data Update instruction, upgrades the existing extending display identification data of described television set; Receive after the user do not carry out extending display identification Data Update instruction, show that current extending display identification data damage, and process ends.
According to TV core plate of the present invention, described verification contrast module further comprises addressed module, is used at I
2Search the EEPROM that the extending display identification data are housed on the C bus, and after finding described EEPROM, read wherein extending display identification data in the buffering area of internal memory.
According to TV core plate of the present invention, the central layer of described television set comprises that one is used to store the EEPROM of the current extending display identification data of described television set, and described EEPROM is by described I
2C bus and described CPU electrically connect.
According to TV core plate of the present invention, the central layer of described television set comprises that one is used to store the FLASH of the extending display identification data that preset, and described FLASH electrically connects by the SPI interface interface corresponding with described CPU.
The present invention backs up by preset EDID in TV core plate, EDID by existing EDID and backup in the verification contrast television set then, if existing EDID is impaired, then the EDID of backup can be written in the memory of the existing EDID of storage, cover existing EDID.Can very simple television set EDID be upgraded by the present invention whereby, make things convenient for the exploitation and the debugging of TV, improved operating efficiency, if simultaneously the terminal use finds that directly carrying out repair function under the situation that EDID damages in menu gets final product, and has reduced cost after sale.
Description of drawings
Fig. 1 is the structural representation of TV core plate of the present invention;
Fig. 2 is the circuit diagram of TV core plate one specific embodiment of the present invention;
Fig. 3 is the self-checking of television set EDID of the present invention and the flow chart of update method;
Fig. 4 is the self-checking of the preferred television set EDID of the present invention and the flow chart of update method.
Embodiment
In order to make purpose of the present invention, technical scheme and advantage clearer,, the present invention is further elaborated below in conjunction with drawings and Examples.Should be appreciated that specific embodiment described herein only in order to explanation the present invention, and be not used in qualification the present invention.
Fig. 1 shows the basic structure of TV core plate of the present invention, and this TV core plate 100 comprises a CPU10, and this CPU 10 comprises at least:
One verification contrast module 11, be used to receive extending display identification data check update instruction after, more current extending display identification data and the extending display identification data that preset, preferably, this verification contrasts module 11 and comprises an addressed module 111, can be at I
2Search the EEPROM 30 that the extending display identification data are housed on the C bus, and after finding described EEPROM 30, read wherein extending display identification data in the buffering area of internal memory;
One selects module 12, is used for relatively obtaining two extending display identification data consistents in described verification contrast module 11, and after showing described current bad information of extending display identification data lossless, selects not carry out Data Update; Described verification contrast module 11 relatively obtain two extending display identification data inconsistent after, select to carry out and transfer to data update module 13 and handle;
One data update module 13 after being used to receive the user and determining to carry out extending display identification Data Update instruction, upgrades the existing extending display identification data of described television set; Receive after the user do not carry out extending display identification Data Update instruction, show that current extending display identification data damage, and process ends.
Be more preferably, TV core plate 100 also comprises:
One FLASH 20 is connected with CPU 10, is used to store the EDID that television set presets;
One EEPROM 30 is connected with CPU 10, is used to store the current EDID of television set.
Whereby, as long as the EDID that television set is adopted is written in the program in advance, and in TV menu, increase EDID verifying function option and EDID upgrading repair function option, when the EDID among the EEPROM 30 of TV core plate 100 is impaired, under the control of CPU 10, the EDID that presets among the FLASH 20 can be write EEPROM 30 also covers original EDID, thereby make the EDID reparation and upgrade easier, improved operating efficiency, make things convenient for the exploitation and the debugging of motor machine, reduced the after cost of television set.
Fig. 2 is the circuit diagram of TV core plate one specific embodiment of the present invention, in this embodiment, described FLASH 20, electrically connect by SPI (Serial Peripheral Interface, Serial Peripheral Interface (SPI)) and described CPU 10 corresponding interfaces, be used for the EDID of storage backup, preferably, described FLASH 20 in the present embodiment adopts PS25LV040, in actual applications, also can adopt the FLASH of other model to carry out the EDID of storage backup.Described EEPROM 30 passes through I
2The C bus is connected with CPU 10, is used to store existing EDID.
With regard to present circumstances, support VGA (Video Graphics Array, Video Graphics Array) and HDMI (High Definition Multimedia Interface, HDMI (High Definition Multimedia Interface)) to become the standard configuration of panel TV.On VGA and HDMI interface communication, all need EDID to support.Interface equipment communicates by VGA or HDMI interface and television set, reads EDID information from the EEPROM 30 of storage EDID, and the EDID information that obtains is carried out the form that the analysis judgment TV is supported, exports then.
The present invention directly is connected to the I of TV core plate 100 by the connected mode of EEPROM 30 with the main IC (integrate circuit, integrated circuit) of change hardware store EDID
2On the C bus, main IC passes through I
2The C bus address is determined EEPROM 30, and communicates by letter with EEPROM 30, and the EDID that is stored is upgraded and verification.Preferably, EEPROM 30 bus addresss of storage EDID are 0xA0.
Fig. 3 shows the self-checking of television set EDID of the present invention and the flow process of update method, and it realizes that by Fig. 1 or TV core plate 100 shown in Figure 2 described method comprises:
Step S301 receives extending display identification data check update instruction, more current extending display identification data and the extending display identification data that preset, and this step is realized by verification contrast module 11;
Step S302 relatively obtains two extending display identification data consistents, and shows described current bad information of extending display identification data lossless, then termination routine flow process; If two extending display identification data are inconsistent, execution in step S303 then, this step is by selecting module 12 to realize;
Step S303 receives user instruction, if described user instruction selects to carry out the extending display identification Data Update, carries out extending display identification Data Update program, and show after renewal is finished and finish information, and the termination routine flow process; If described user instruction is selected not carry out the extending display identification Data Update, show that then current extending display identification data damage, termination routine flow process then, this step is realized by data update module 13.
Preferably, step S301 further comprises, after the EDID checking command sends, the addressed module of CPU 10 111 by address date at I
2Search the EEPROM 30 that EDID is housed on the C bus, search finish after, read wherein EDID in the buffering area of internal memory.
Whereby, the invention enables the TV control program to communicate with EEPROM 30, reading EDID information carries out verification and upgrades under the wrong situation occurring, make things convenient for TV exploitation and debugging, improved operating efficiency, owing to repair the simplification of EDID, also reduced the after cost of television set simultaneously.
Fig. 4 is the self-checking of the preferred television set EDID of the present invention and the flow chart of update method, and it realizes that by TV core plate shown in Figure 2 100 described method comprises:
Step S401 receives the user and sends the instruction of EDID checksum update, enters the program function module, and program connects given EEPROM 30 at I by hardware
2This EEPROM30 of address search on the C bus, and after finding, read wherein EDID in the buffering area of internal memory;
Step S402, the EDID information that presets in EDID that relatively reads and the program;
Step S403 judges that two EDID are whether consistent, if consistent, if execution in step S404 is inconsistent then execution in step S405;
Step S404, system show that EDID does not have damage information among the EEPROM 30, and flow process finishes;
Step S405 receives user instruction, determines that as the user selecting to carry out EDID upgrades then execution in step S406, determines not carry out then execution in step S407 of Data Update as selecting the user;
Step S406 under the control of CPU 10 data update modules 13, writes EEPROM 30 with the EDID among the FLASH 20, and covers original EDID among the EEPROM 30, writes to finish the back and show that EDID upgrades the information of finishing, the flow process end;
Step S407 shows that current EDID is impaired, and flow process finishes.
In sum, the present invention backs up by preset EDID in TV core plate, and the EDID by existing EDID and backup in the verification contrast television set then is if existing EDID is impaired, then the EDID of backup can be written in the memory of the existing EDID of storage, cover existing EDID.Can very simple television set EDID be upgraded by the present invention whereby, make things convenient for the exploitation and the debugging of TV, improved operating efficiency, if simultaneously the terminal use finds that directly carrying out repair function under the situation that EDID damages in menu gets final product, and has reduced cost after sale.
Certainly; the present invention also can have other various embodiments; under the situation that does not deviate from spirit of the present invention and essence thereof; those of ordinary skill in the art work as can make various corresponding changes and distortion according to the present invention, but these corresponding changes and distortion all should belong to the protection range of the appended claim of the present invention.
Claims (8)
1. the self-verification and the update method of television set extending display identification data is characterized in that, described method comprises the steps: at least
A, reception extending display identification data check update instruction, more current extending display identification data and the extending display identification data that preset;
B, relatively obtain two extending display identification data consistents, and show described current bad information of extending display identification data lossless, then termination routine flow process; If two extending display identification data are inconsistent, then execution in step C;
C, reception user instruction if described user instruction selects to carry out the extending display identification Data Update, are carried out extending display identification Data Update program, and information was finished in demonstration after renewal was finished, and the termination routine flow process; If described user instruction is selected not carry out the extending display identification Data Update, show that then current extending display identification data damage, then the termination routine flow process.
2. television set extending display identification data oneself's verification according to claim 1 and update method is characterized in that described steps A further comprises:
Program connects given EEPROM at I by hardware
2This EEPROM of address search on the C bus finds the extending display identification data that read behind the described EEPROM wherein in the buffering area of internal memory.
3. television set extending display identification data oneself's verification according to claim 1 and update method is characterized in that described current extending display identification storage is in EEPROM.
4. television set extending display identification data oneself's verification according to claim 1 and update method is characterized in that the described extending display identification storage that presets is in FLASH.
5. a realization is characterized in that as the TV core plate of claim 1～4 method as described in each described TV core plate comprises a CPU at least, and described CPU comprises:
At least one verification contrast module, be used to receive extending display identification data check update instruction after, more current extending display identification data and the extending display identification data that preset;
At least one selection module is used for relatively obtaining two extending display identification data consistents in described verification contrast module, and shows described current bad information of extending display identification data lossless, selects not carry out Data Update; Described verification contrast module relatively obtain two extending display identification data inconsistent after, select to carry out and transfer to data update module and handle;
At least one data update module after being used to receive the user and determining to carry out extending display identification Data Update instruction, upgrades the existing extending display identification data of described television set; Receive after the user do not carry out extending display identification Data Update instruction, show that current extending display identification data damage, and process ends.
6. TV core plate according to claim 5 is characterized in that, described verification contrast module further comprises addressed module, is used at I
2Search the EEPROM that the extending display identification data are housed on the C bus, and after finding described EEPROM, read wherein extending display identification data in the buffering area of internal memory.
7. TV core plate according to claim 5 is characterized in that, the central layer of described television set comprises that one is used to store the EEPROM of the current extending display identification data of described television set, and described EEPROM is by described I
2C bus and described CPU electrically connect.
8. TV core plate according to claim 5 is characterized in that, the central layer of described television set comprises that one is used to store the FLASH of the extending display identification data that preset, and described FLASH electrically connects by the SPI interface interface corresponding with described CPU.
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| Application Number | Priority Date | Filing Date | Title |
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| CN200910107066XA CN101883204A (en) | 2009-05-05 | 2009-05-05 | TV EDID self-checking and updating method and TV core plate |
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| CN200910107066XA CN101883204A (en) | 2009-05-05 | 2009-05-05 | TV EDID self-checking and updating method and TV core plate |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102110473A (en) * | 2011-01-05 | 2011-06-29 | 深圳创维－Rgb电子有限公司 | Method and system for programming and checking EDID (Extended Display Identification Data) of display device |
| CN101739994B (en) * | 2010-01-14 | 2011-11-09 | 福建捷联电子有限公司 | Method for preventing LCD Monitor DDC data from being burnt by mistake |
| CN103500565A (en) * | 2013-09-30 | 2014-01-08 | 乐视致新电子科技（天津）有限公司 | Storage method and storage device |
| CN104598325A (en) * | 2015-02-10 | 2015-05-06 | 武汉精测电子技术股份有限公司 | Method for burning and verifying EDID (Extended Display Identification Data) of display module |
| CN104793701A (en) * | 2015-04-07 | 2015-07-22 | 联想(北京)有限公司 | Information processing method and device |
| CN106021164A (en) * | 2016-05-13 | 2016-10-12 | 浪潮集团有限公司 | KVM system-based EDID updating method and system |
| CN106326787A (en) * | 2016-08-08 | 2017-01-11 | 江西合力泰科技有限公司 | Information burning method |
| CN106791543A (en) * | 2016-12-29 | 2017-05-31 | 合肥宏晶微电子科技股份有限公司 | A kind of technical method for realizing USB interface EDID compatibility |
| CN109120973A (en) * | 2018-08-06 | 2019-01-01 | 青岛海信电器股份有限公司 | A kind of method, apparatus and storage medium of EDID data rewriting |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101739994B (en) * | 2010-01-14 | 2011-11-09 | 福建捷联电子有限公司 | Method for preventing LCD Monitor DDC data from being burnt by mistake |
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| CN104598325A (en) * | 2015-02-10 | 2015-05-06 | 武汉精测电子技术股份有限公司 | Method for burning and verifying EDID (Extended Display Identification Data) of display module |
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| CN104793701B (en) * | 2015-04-07 | 2018-07-03 | 联想(北京)有限公司 | A kind of information processing method and equipment |
| CN106021164A (en) * | 2016-05-13 | 2016-10-12 | 浪潮集团有限公司 | KVM system-based EDID updating method and system |
| CN106326787A (en) * | 2016-08-08 | 2017-01-11 | 江西合力泰科技有限公司 | Information burning method |
| CN106791543A (en) * | 2016-12-29 | 2017-05-31 | 合肥宏晶微电子科技股份有限公司 | A kind of technical method for realizing USB interface EDID compatibility |
| CN109120973A (en) * | 2018-08-06 | 2019-01-01 | 青岛海信电器股份有限公司 | A kind of method, apparatus and storage medium of EDID data rewriting |
| CN109120973B (en) * | 2018-08-06 | 2021-08-10 | 海信视像科技股份有限公司 | Method, device and storage medium for rewriting EDID data |
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Application publication date: 20101110 |