CN205943424U - Control board among small -size TFT - Google Patents
Control board among small -size TFT Download PDFInfo
- Publication number
- CN205943424U CN205943424U CN201620823491.4U CN201620823491U CN205943424U CN 205943424 U CN205943424 U CN 205943424U CN 201620823491 U CN201620823491 U CN 201620823491U CN 205943424 U CN205943424 U CN 205943424U
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- mcu
- tft
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Abstract
The utility model discloses a control board among small -size TFT, well accuse board include MCU, FLASH memory chip, SD joint mouth, TFT interface and power module, and FLASH memory chip and SD joint mouth are connected respectively on MCU, and TFT interface connection is on MCU, and power module supplies power for MCU, FLASH memory chip, SD joint mouth and TFT interface. The utility model discloses convenient and fast debugs the product. Decipher in data and instruction, just reduced more than 90% with regard to the time than ordinary design, use the utility model discloses, drive IC's loaded down with trivial details instruction and control program need not be considered to the customer end, as long as just can accomplish the debugging of product display screen in four hours according to the operation of simple agreement, and ordinary design just shows, the back is accomplished to the general layout, and it still need 1 week time to debug the completion at last, so the utility model discloses shortened more than 95% on the development period who uses the TFT demonstration.
Description
Technical field
This utility model discloses a kind of liquid crystal drive panel, particularly a kind of small size TFT control board.
Background technology
Control TFT screen Problems a lot of with the normal MCU in present market：（1）MCU controls TFT screen and two devices of FLASH
Part at least needs 25 I/O mouths, and certain MCU also needs to control the miscellaneous part of whole system, so I/O mouth type selecting to MCU
Have high demands, available MCU price in the market is typically at 15 ~ 20 yuan.（2）TFT video data amount is big, and the speed of brush screen is again
Fast, so require speed at least more than the 50Mhz of MCU, common MCU cannot realize it is necessary to select special chip at all,
So and seriously limit selection during design.（3）TFT screen display control signal illustrates up to page eight or nine ten, and procedure quantity
Up to 30kb again, so not only high to the capacity requirement of MCU, cost is also high, and the difficulty developed is quite big.Common enters a profession
The engineer of 2 to four years, at all cannot independent operation, Small Groups research and develop this control software and design hardware it is also desirable to one month
The above time, or buy general program it is impossible to realize the individual requirement of client.
Content of the invention
For the shortcoming driving TFT screen to have high demands using MCU of the prior art mentioned above, this utility model provides
A kind of small size TFT control board,
This utility model solves its technical problem and employed technical scheme comprise that：A kind of small size TFT control board, control board bag
Include MCU, FLASH storage chip, SD card interface, TFT interface and power module, FLASH storage chip and SD card interface connect respectively
It is connected on MCU, TFT interface is connected on MCU, power module is to MCU, FLASH storage chip, SD card interface and TFT interface
It is powered.
The technical scheme that this utility model solves the employing of its technical problem further comprises：
Described power module adopts linear voltage stabilization chip.
Described control board also includes burning interface, and burning interface is connected with MCU.
Described FLASH storage chip is connected with MCU by SPI interface.
The storage chip of described FLASH storage chip model W25X16.
The beneficial effects of the utility model are：This utility model can make the developer just can be completely in 30 minutes
Understand display protocol and display dependent instruction, conveniently product is debugged.Understand in data and instruction, than common
Design more than 90% is just decreased with regard to the time, using this utility model, client is without considering to drive loaded down with trivial details instruction and the control of IC
Processing procedure sequence, as long as operating four hours just can complete the debugging of product display screen according to simple agreement, and common design is just
For display, after the completion of being typically designed, finally debugging completes to also need to 1 time-of-week, so this utility model shows in application TFT
Construction cycle on shorten more than 95%.
I/O mouth of the present utility model only needs to 3, saves more than 22 multiple I/O ports than normal design.This practicality is new
The brush screen speed of type can reach 0.5 second, and general MCU speed is extremely difficult to.Common design needs the soft of more than 4 years experiences
Part engineer just can complete, and just can be completed using the engineer that this utility model client only needs to basis programming, so
Reduce R＆D costs.
Conventional design of the prior art, if it is desired to condition above can be met, the type selecting of MCU needs about 15-20 unit, and
The chip that this utility model is used only has several yuans, and is modal on market, and model is also most, so this practicality
New inexpensive, low put in the case of, greatly reduce cost during production in enormous quantities it is ensured that hand over the phase quick, quality
Stablize, equally realize show clear, aesthetic.
In market, substantial amounts of client wants the updating and upgrading of a product, but is limited to the reason technology and cost it is impossible to realize, now
Client adopts this utility model it is not necessary to newly-increased engineers and technicians, simply does on original product and changes it is possible to straight
Connect upgrading, meet customer demand.
Below in conjunction with the drawings and specific embodiments, this utility model is described further.
Brief description
Fig. 1 is this utility model circuit block diagram.
Fig. 2 is this utility model circuit theory diagrams.
Specific embodiment
The present embodiment is this utility model preferred implementation, and other its principles all are identical with the present embodiment with basic structure
Or it is approximate, all within this utility model protection domain.
Refer to accompanying drawing 1 and accompanying drawing 2, this utility model mainly includes MCU, FLASH storage chip, SD card interface, TFT connect
Mouth and power module, FLASH storage chip and SD card interface are connected on MCU, and TFT interface is connected on MCU, and MCU is defeated
Go out and display signal to TFT interface, power module is powered to MCU, FLASH storage chip, SD card interface and TFT interface.
In the present embodiment, FLASH storage chip is connected with MCU by SPI interface, and FLASH storage chip adopts model
The storage chip of W25X16.In the present embodiment, power module adopts linear voltage stabilization chip, and output after input power voltage stabilizing is carried out
Power supply.
In the present embodiment, also include burning interface, burning interface is connected with MCU, for control program is burned onto MCU
In.
This utility model, by the way of MCU+TFT interface+FLASH+SD card composition, takes out Chinese character base by Zemo
File, such as：HZK16, HZK 24, HZK32 etc., can select the Song typeface, black matrix, regular script etc. can, its picture applied
Two BIN code files are converted into by the transducer of picture.This utility model puts into Chinese character library file used and BIN file
In sd card, in the SD card seat of this product that then SD card comes in and goes out, after powering up, MCU detects the content of SD card, and by SD card
The file content in face is sequentially written in inside FLASH storage chip according to what software had set, after writing, pulls out SD card, completes
Card Reader operates.This step client can be random the demand more to meet different terminals client with picture.
Client MCU of the present utility model only needs to common three I/O mouth, is connected with utility model and fetches the information of realization
Transmission.If it is desired to calling corresponding picture, Chinese character and character etc., corresponding instruction can be called to realize.
This utility model not only embodies the new thinking mode of liquid crystal module, also realizes the new development of tft control simultaneously.
The MCU of client of the present utility model controls this product to only need to common 3 I/O, will reduce than Normal practice
22 I/O ports., without considering the slow-footed problem of brush screen, this utility model only needs 0.5 second just can brush one screen for client.Client
The developer at end, without the concern for the loaded down with trivial details instruction of program, only need to send data according to simple command protocols and just can realize
The display effect of TFT.This utility model is less demanding for the MCU of client, and common 8051 just completely it is achieved that not only
Cost-effective, and the leeway that can select is very big, and substantially have on market can select, and do not have the load of short supply
Melancholy.Client not only saves development cost, and greatly shortens the construction cycle of product；Thus improve product in market
On competitive advantage.As long as the new person that can write basic software instruction is it is also possible to stand-alone development, use, the quality to people and year
Limit requirement does not have.Client can modify to product within the time of 1 day and finish, and fully achieve, quickly personalized product
Product design and use.
Claims (5)
1. a kind of small size TFT control board, is characterized in that：Described control board includes MCU, FLASH storage chip, SD card connects
Mouth, TFT interface and power module, FLASH storage chip and SD card interface are connected on MCU, and TFT interface is connected to MCU
On, power module is powered to MCU, FLASH storage chip, SD card interface and TFT interface.
2. small size TFT control board according to claim 1, is characterized in that：Described power module adopts linear voltage stabilization
Chip.
3. small size TFT control board according to claim 1, is characterized in that：Described control board also includes burning interface,
Burning interface is connected with MCU.
4. small size TFT control board according to claim 1, is characterized in that：Described FLASH storage chip passes through SPI
Interface is connected with MCU.
5. small size TFT control board according to claim 1, is characterized in that：Described FLASH storage chip model
The storage chip of W25X16.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620823491.4U CN205943424U (en) | 2016-08-01 | 2016-08-01 | Control board among small -size TFT |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620823491.4U CN205943424U (en) | 2016-08-01 | 2016-08-01 | Control board among small -size TFT |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205943424U true CN205943424U (en) | 2017-02-08 |
Family
ID=57924991
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620823491.4U Expired - Fee Related CN205943424U (en) | 2016-08-01 | 2016-08-01 | Control board among small -size TFT |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205943424U (en) |
-
2016
- 2016-08-01 CN CN201620823491.4U patent/CN205943424U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170208 Termination date: 20210801 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |