CN101499262A - Firmware updating circuit and method for display equipment - Google Patents
Firmware updating circuit and method for display equipment Download PDFInfo
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- CN101499262A CN101499262A CNA2008100053361A CN200810005336A CN101499262A CN 101499262 A CN101499262 A CN 101499262A CN A2008100053361 A CNA2008100053361 A CN A2008100053361A CN 200810005336 A CN200810005336 A CN 200810005336A CN 101499262 A CN101499262 A CN 101499262A
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Abstract
The invention relates to a firmware update circuit of a display device and a method thereof and includes a first display device and a second display device. An updating unit is used to start an updating procedure, and consequently, a first firmware datum of the first display device is transmitted to the second display device in order to update a second firmware datum of the second display device. In this way, the reliability is improved, no compatibility problem exists and furthermore no extra burn apparatus is needed, lowering the cost.
Description
Technical field
The present invention relates to a kind of display device, particularly a kind of firmware update circuit and method thereof of display device.
Background technology
In the general display device ROM (read-only memory) being arranged all is to deposit some data of relevant display device and basic parameter setting or initialization data, if when display device appears on the scene afterwards in general user's hand, if will do renewal to the firmware data in the display device, usually the user must deliver to display device manufacturer to upgrade, so, for quite inconvenience of user.
Will firmware data write fashionablely for the display device of not dispatching from the factory as yet, or manufacturer be will help the user to do firmware data to upgrade the time, normally can utilize several methods to implement.
At first be in advance at the outside terminal of reserving of display device, this terminal is coupling to accept writing of outer computer by signal wire, the shortcoming of this kind method is essential many design one terminals, so increase the design complexities and the cost of display device, and need an extra transmission lines to transmit signal, moreover be display data channel (the Display Data Channel that utilizes the display card of computing machine, DDC) the direct burning firmware data is to display device, the method makes development company that the program of burning must be provided, also because computing machine is an open platform, the combination variety of computer hardware and operating system is various, burning program, computing machine, the compatibility issue of display card and display device will be difficult for the development and maintenance of burning program.
Be in addition can use a specific fixture as with the bridge of display device, it similarly is adapter, so though microprocessor need not be disassembled, can directly to display device burning firmware data, but manufacturer must make and safeguard these replication tools with the maintenance strong point.
After also having a method to be the shell of dismounting display device, a microprocessor of depositing firmware data is taken out, the firmware data of utilizing cd-rom recorder to upgrade again is burned to microprocessor, reinstalls to display device then.The method is quite inconvenient for general user, upgrades not only that firmware data will manage to obtain and general user does not have burning equipment yet and carries out burning.Moreover do not upgrade or dismounting is advisable not do as far as possible for general computer equipment, as the above-mentioned if action that display device and microprocessor are done dismounting or installed, regular meeting causes damage or the recessive risk that can not expect to equipment.No matter be above-mentioned that several method therefore, all can bring inconvenience and increase time and cost to the user.
Therefore, how a kind of firmware update circuit and method thereof of novel display device are proposed at the problems referred to above, not only can improve the shortcoming that uses a computer renewal and compatibility issue occurs, can avoid using cd-rom recorder or specific fixture to reduce cost again, more microprocessor need not be taken out to save time and mental and physical efforts.
Summary of the invention
Fundamental purpose of the present invention, be to provide a kind of firmware update circuit and method thereof of display device, it is second storage unit that one first firmware data is write to one second display device by one first microprocessing unit of one first display device, to upgrade the firmware data of second display device, owing to be the closure circuit, therefore can improve fiduciary level, and not have compatibility issue.
Secondary objective of the present invention, be to provide a kind of firmware update circuit and method thereof of display device, it is second firmware data of being upgraded second display device by first display device, owing to need not pass through computing machine or extra burning fixture, so can save extra cost of manufacture.
Another object of the present invention, be to provide a kind of firmware update circuit and method thereof of display device, it is image graphics array (the Video Graphics Array by display device, VGA) with digital picture interface (Digital Visual Interface, DVI) as upgrading the firmware data transmission interface, so need not additionally to increase the usefulness of a terminal, to reduce cost as renewal.
It comprises one first display device and one second display device display device refresh circuit of the present invention, wherein, first display device comprises one first microprocessing unit and one first storage unit, store one first firmware data, one second display device comprises one second microprocessing unit and one second storage unit, store one second firmware data, be to start by a updating block to upgrade, first microprocessing unit will read first firmware data of first storage unit this moment, and transmit second microprocessing unit of first firmware data to the second display device, by second microprocessing unit first firmware data is write to second storage unit, to upgrade second firmware data.
Description of drawings
Fig. 1 shows the calcspar of firmware update circuit of the display device of a preferred embodiment of the present invention;
Fig. 2 shows the calcspar of firmware update circuit of the display device of a preferred embodiment of the present invention;
Fig. 3 shows the process flow diagram of firmware update of the display device of a preferred embodiment of the present invention;
Fig. 4 shows the process flow diagram of firmware update of the display device of a preferred embodiment of the present invention; And
Fig. 5 shows the process flow diagram of firmware update of the display device of a preferred embodiment of the present invention.
The reference numeral explanation
10 first display device
12 first microprocessing units
14 first storage unit
20 second display device
22 second microprocessing units
24 second storage unit
30 updating blocks
40 coupled interface.
Embodiment
Further understand and understanding for architectural feature of the present invention and the effect reached are had, sincerely help with preferred embodiment and conjunction with figs., illustrate as after:
See also Fig. 1, it is the calcspar of firmware update circuit of the display device of a preferred embodiment of the present invention.The invention provides the maintenance strong point can be upgraded the firmware data or the problematic firmware data of the display device of old edition by the firmware data of the display device of a new edition, as shown in the figure, the display device refresh circuit comprises one first display device 10 and one second display device 20, wherein, first display device 10 couples mutually with second display device 20, and first display device comprises one first microprocessing unit 12, one first storage unit 14 and a updating block 30; Second display device 20 comprises one second microprocessing unit 22, one second storage unit 24.Wherein, first storage unit, 14 storages, one first firmware data, second storage unit, 24 storages, one second firmware data, first microprocessing unit 12 and second microprocessing unit 22 are respectively coupled to first storage unit 14 and second storage unit 24, make and to write or reading cells 14,24 firmware data, in addition, first microprocessing unit 12 and second microprocessing unit 22 have firmware (In System Programming able to programme, ISP) function, make first display device 10 directly upgrade a firmware data, need not first microprocessing unit 12 and second microprocessing unit 22 are removed stage makeup and costume from first display device 10 and second display device 20 respectively second display device 20.
Moreover, updating block 30 is arranged at first display device 10, order about first firmware data that first microprocessing unit 12 of first display device 10 reads, and first firmware data is sent to second display device 20, by second microprocessing unit 20 of second display device first firmware data is write second storage unit 24 of second display device again, to upgrade second firmware data.
See also Fig. 2, it is the calcspar of firmware update circuit of the display device of one embodiment of the invention.As shown in the figure, the updating block 30 of present embodiment is arranged at second display device 20, require information to the first display device 10 by second microprocessing unit, 22 transmission one that updating block 30 orders about second display device 20 this moment, after first microprocessing unit 12 of first display device 10 receives and requires information, read first firmware data of first storage unit 14, and second microprocessing unit, 22, the second microprocessing units 22 that first firmware data is sent to second display device 20 are upgraded second firmware data of second storage unit 24 according to first firmware data that receives.Updating block 30 can be a updating key in addition, or by the synthetic compound keys of a plurality of key groups, with avoid user's mistake by and enter more new element, moreover updating block 30 also can by the display device display and operation (On Screen Display, OSD).
In addition, when starting renewal by updating block 30, microprocessing unit 10,20 can judge whether first firmware data is the firmware data of new edition, when first firmware data is the firmware data of new edition, then by first display device, 10 transmission, first firmware data to the second display device 20, to upgrade second firmware data of second display device 20, in like manner, when second firmware data is the firmware data of new edition, then by second display device, 20 transmission, second firmware data to the first display device 10, to upgrade first firmware data of first display device 10.
Again, first display device 10 can couple interface 40 by one with second display device 20 and couple mutually, coupled interface 40 can be Video Graphics Array (VGA), Digital Visual Interface (DVI) or high-resolution multimedia interface (High-Definition Multimedia Interface, HDMI) realize, and this couples interface and comprises that display data channel (DDC) is with the transmission firmware data, display data channel comprises a signal data line (Signal Data, SDA) with a signal clock line (Signal Clock, SCL), wherein, the signal data line is in order to transmit the internal data of display device, as machine, title or esolving degree; The signal clock line in order to the pulse of signal data line locking, wherein, signal data line and signal clock line are met I2C communication protocol in the present embodiment.
Trend based on the System on Chip/SoC design, the above embodiments all can make wherein first storage unit 14 and updating block 30 be built in respectively or jointly among first microprocessing unit 12, in like manner, second storage unit 24 and updating block 30 also can be respectively or are built in jointly among second microprocessing unit 22, can make that so integrated circuit can reach the purpose of system's microminiaturization.
See also Fig. 3, it is the process flow diagram of the display device update method of a preferred embodiment of the present invention.See also Fig. 1, as shown in the figure, at first execution in step S10 couples first display device 10 and second display device 20, execution in step S11 is sent first microprocessing unit 12 of lastest imformation to the first display device 10 by updating block 30 again, S12 is according to lastest imformation for the person's of connecing execution in step, read one first firmware data of one first storage unit 14 of first display device 10 by first processing unit 12, then execution in step S13 passes through one second microprocessing unit 22 that first microprocessing unit 12 transmits first firmware data to, second display device 20 again, next execution in step S14 upgrades one second firmware data of one second storage unit 24 according to first firmware data.
See also Fig. 4, it is the process flow diagram of the display device update method of a preferred embodiment of the present invention.See also Fig. 2, as shown in the figure, execution in step S20 at first, first display device 10 and second display device 20 are coupled, execution in step S21 again, send a lastest imformation to one second display device 20 by updating block 30, the person's of connecing execution in step S22, according to lastest imformation, require one first microprocessing unit 12 of information to the first display device 10 by second microprocessing unit, 22 transmission one of second display device 20, follow execution in step S23 again, according to requiring information, read first firmware data of first storage unit 12 of first display device 10 by first microprocessing unit 12, next execution in step S24 transmits first firmware data to the second microprocessing unit 22 by first microprocessing unit 12, next execution in step S25 upgrades second firmware data of second storage unit 24 of second display device 20 according to first firmware data again.
See also Fig. 5, it is the process flow diagram of the display device update method of a preferred embodiment of the present invention.As shown in the figure, present embodiment and Fig. 3 are that with the embodiment difference of Fig. 4 step S31 judges whether first firmware data of first display device is the firmware data of new edition, when first firmware data is the firmware data of new edition, if, then follow execution in step S32, transmit one first firmware data to, second display device by one first display device, follow execution in step S33 again according to first firmware data, upgrade one second firmware data of one second display device, if first firmware data is not the firmware data of new edition, the execution in step that then continues S34, transmit second firmware data to the first display device by second display device, the execution in step that continues again S35 upgrades first firmware data of first display device according to second firmware data of second display device.
In sum, display device refresh circuit of the present invention comprises one first display device, one second display device and a updating block, and wherein, first display device comprises one first microprocessing unit, one first storage unit; Second display device comprises one second microprocessing unit, one second storage unit, its update method is to start by updating block to upgrade, when first firmware data is the firmware data of new edition, then can directly read first firmware data of first storage unit by first microprocessing unit of first display device, and transfer to second display device, to upgrade second firmware data of second display device, in addition, can be after updating block starts renewal, judge that by microprocessing unit first firmware data or second firmware data are the firmware data of new edition, upgrade the firmware data of old edition again by the firmware data of new edition.
Because above-mentioned all embodiment upgrade firmware data at display device to display device to develop the circuit that, so belong to a closed system, this closed system fiduciary level is high and do not have a compatibility issue, so need not use a computer and extra replication tool, to save cost, moreover, owing to be to utilize image graphics array (VGA) and digital picture interface (DVI) etc. to couple interface as what the renewal firmware data of two corresponding display device was transmitted, so need not on display device, make extra terminal, but be stressed that the interface that couples of the present invention is not limited to two kinds of specifications such as image graphics array and digital picture interface, all corresponding persons all can use.
The above person of thought, it only is a preferred embodiment of the present invention, be not to be used for limiting scope of the invention process, the equalization of doing according to the described shape of the present patent application claim, structure, feature and spirit changes and modifies such as, all should be included in the claim of the present invention.
Claims (11)
1. the firmware update of a display device, it comprises the following steps:
One first display device is coupled mutually with one second display device;
Send a lastest imformation by a updating block;
According to this lastest imformation, read one first firmware data of this first display device;
Transmit this first firmware data to this second display device; And
According to this first firmware data, upgrade one second firmware data of this second display device.
2. the method for claim 1, wherein this method is utilized the programmable function of a firmware, orders about this first firmware data and writes this second display device.
3. the method for claim 1, wherein this lastest imformation is used to make this second display device transmission one to require information to this first display device, orders about one first firmware data that this first display device reads this first display device.
4. method as claimed in claim 3, wherein, this method by a display data channel transmit this lastest imformation, this first firmware data and this require information at least one of them.
5. the firmware update of a display device, it comprises the following steps:
One first display device is coupled mutually with one second display device;
Whether one first firmware data of judging this first display device is the new edition firmware data;
If, then transmit this first firmware data to this second display device and according to this first firmware data by this first display device, upgrade one second firmware data of this second display device; And
If not, then transmit this second firmware data to this first display device and according to this second firmware data, upgrade this first firmware data of this first display device by this second display device.
6. method as claimed in claim 5, wherein, this method by a display data channel transmit this first firmware data and this second firmware data at least one of them.
7. the refresh circuit of a display device comprises:
One first storage unit is arranged at one first display device, stores one first firmware data;
One second storage unit is arranged at one second display device, stores one second firmware data;
One updating block, in order to produce a lastest imformation so that this first firmware data writes this second storage unit or make this second firmware data write this first storage unit;
One first microprocessing unit is arranged at this first display device, is coupled to this first storage unit, in order to the data read of controlling this first storage unit with write;
One second microprocessing unit is arranged at this second display device, is coupled to this second storage unit, in order to the data read of controlling this second storage unit with write; And
One couples interface, couples this first microprocessing unit and this second microprocessing unit.
8. circuit as claimed in claim 7, wherein, this updating block is coupled to this first microprocessing unit, and this first microprocessing unit writes this first storage unit according to this lastest imformation that this updating block produced with this second firmware data, or this updating block is coupled to this second microprocessing unit, and this second microprocessing unit writes this second storage unit according to this lastest imformation that this updating block produced with this first firmware data.
9. circuit as claimed in claim 7, wherein, this updating block is coupled to this first microprocessing unit, and this first microprocessing unit reads this first firmware data and transfer to this second microprocessing unit according to this lastest imformation that this updating block produced, to write this second storage unit.
10. circuit as claimed in claim 7, wherein, this first microprocessing unit or this second microprocessing unit are used to judge whether this first firmware data or this second firmware data are a new edition firmware data.
11. circuit as claimed in claim 7, wherein, this first microprocessing unit and this second microprocessing unit one of them has the programmable function of a firmware at least.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100053361A CN101499262A (en) | 2008-02-01 | 2008-02-01 | Firmware updating circuit and method for display equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100053361A CN101499262A (en) | 2008-02-01 | 2008-02-01 | Firmware updating circuit and method for display equipment |
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| Publication Number | Publication Date |
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| CN101499262A true CN101499262A (en) | 2009-08-05 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNA2008100053361A Pending CN101499262A (en) | 2008-02-01 | 2008-02-01 | Firmware updating circuit and method for display equipment |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102970502A (en) * | 2011-08-31 | 2013-03-13 | 中强光电股份有限公司 | Projection system and updating method thereof |
| CN105554306A (en) * | 2016-01-27 | 2016-05-04 | 努比亚技术有限公司 | Mobile terminal and two-chip system upgrading method |
-
2008
- 2008-02-01 CN CNA2008100053361A patent/CN101499262A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102970502A (en) * | 2011-08-31 | 2013-03-13 | 中强光电股份有限公司 | Projection system and updating method thereof |
| CN105554306A (en) * | 2016-01-27 | 2016-05-04 | 努比亚技术有限公司 | Mobile terminal and two-chip system upgrading method |
| CN105554306B (en) * | 2016-01-27 | 2019-05-31 | 努比亚技术有限公司 | Mobile terminal and its dual-chip system upgrade method |
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Open date: 20090805 |