CN110262990A - LVDS video source module and its application method - Google Patents
LVDS video source module and its application method Download PDFInfo
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- CN110262990A CN110262990A CN201910596434.5A CN201910596434A CN110262990A CN 110262990 A CN110262990 A CN 110262990A CN 201910596434 A CN201910596434 A CN 201910596434A CN 110262990 A CN110262990 A CN 110262990A
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- 108091001599 RGB-10 Proteins 0.000 description 6
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- 238000013461 design Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
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- 238000006243 chemical reaction Methods 0.000 description 3
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Classifications
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F13/00—Interconnection of, or transfer of information or other signals between, memories, input/output devices or central processing units
- G06F13/38—Information transfer, e.g. on bus
- G06F13/382—Information transfer, e.g. on bus using universal interface adapter
- G06F13/385—Information transfer, e.g. on bus using universal interface adapter for adaptation of a particular data processing system to different peripheral devices
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F13/00—Interconnection of, or transfer of information or other signals between, memories, input/output devices or central processing units
- G06F13/38—Information transfer, e.g. on bus
- G06F13/42—Bus transfer protocol, e.g. handshake; Synchronisation
- G06F13/4282—Bus transfer protocol, e.g. handshake; Synchronisation on a serial bus, e.g. I2C bus, SPI bus
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D10/00—Energy efficient computing, e.g. low power processors, power management or thermal management
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Abstract
The present invention provides a kind of LVDS video source module and its application methods, and wherein video source module includes core board (1), mainboard (2) and LVDS output board (3)；The core board (1) includes output switching male terminal (4)；The mainboard (2) includes mainboard Transit Core plate female terminal (5) and mainboard RGB output port (9)；The LVDS output board (3) includes the LVDS input port RGB (10)；The core board (1) and mainboard (2) are detachably connected by output switching male terminal (4) and mainboard Transit Core plate female terminal (5)；The mainboard (2) and LVDS output board (3) are detachably connected by mainboard RGB output port (9) and the LVDS input port RGB (10).The present invention has the advantages of high-speed, Low emissivity, low-power consumption, high anti-interference ability.
Description
Technical field
The present invention relates to automobile video applied technical fields, and in particular, to a kind of LVDS video source module and its use
Method, more particularly to it is a kind of based on STM32 system LVDS video source module.
Background technique
LVDS refers to Low Voltage Differential Signal, is a kind of new technique of high-performance data transmission application, has high-speed, low
Width is penetrated, low-power consumption, high anti-interference ability.In automobile video application, in recent years, with the development of automotive electronic technology, by video source
It is separated with display equipment, a kind of auto Anti-Blooming of night video image processing as disclosed in patent document CN108737741A
System, including two-way video collector and video image processing module, be arranged side by side in the two-way video collector have it is visible
Light camera and infrared camera, it is seen that light camera is parallel towards identical and optical axis with infrared camera, and is located in same level height；
Visible Light Camera and infrared camera are separately connected video image processing module by cable.
This separate design just needs to formulate video source and shows equipment room signal transfer protocol, and Low Voltage Differential Signal
(LVDS) become digital video transmission most reasonably to apply.
And therefore, manufacture and design field in automobile electronics, our big display products, all design have LVDS defeated
Incoming interface, such as instrument, navigator etc., the video stream data generated for receiving other hosts, such as by navigator map denotation in
Instrument display screen etc..In this way, manufacturing and designing field in automotive electronics, it is necessary to which one kind is used for LVDS video source, for testing
Reliability and stability tool of the automobile electronics with LVDS interface in transmission of video part.
Summary of the invention
For the defects in the prior art, the object of the present invention is to provide a kind of LVDS video source module and its users
Method.
A kind of LVDS video source module provided according to the present invention, including core board, mainboard and LVDS output board；
The core board includes output switching male terminal；The mainboard includes mainboard Transit Core plate female terminal and mainboard
RGB output port；The LVDS output board includes the LVDS input port RGB；
The core board and mainboard are detachably connected by output switching male terminal and mainboard Transit Core plate female terminal；
The mainboard and LVDS output board are detachably connected by mainboard RGB output port and the LVDS input port RGB.
Preferably, the core board includes core board master chip circuit, further includes core board output built-up circuit, crystal oscillator electricity
Any one of road, reset circuit and input/output port appoint multiple combinations；
The core board output built-up circuit is connected with output switching male terminal, i.e., core board is exported by core board and transferred
Circuit is connected with mainboard；
Core board output built-up circuit, crystal oscillating circuit, reset circuit and input/output port with core board master
Chip circuit is connected.
Preferably, the mainboard includes motherboard power supply circuit, further includes SD card circuit, JTAG debugging port circuit, serial ports
Any one of circuit, mainboard RGB output circuit and mainboard input built-up circuit appoint multiple combinations；
The mainboard input built-up circuit is connected with mainboard Transit Core plate female terminal, i.e., mainboard is inputted by mainboard and transferred
Circuit is connected with core board；
The SD card circuit is directly connected to by core board built-up circuit with core board；Debug port circuit and outside JTAG
Debugger is directly connected to；Serial port circuit is connect with serial ports of computers；Mainboard RGB output circuit by mainboard input built-up circuit with
LVDS output board is connected.
Preferably, the LVDS output board includes LVDS power circuit, further includes LVDS input RGB port circuit, USB
Control circuit and LVDS output circuit；
The LVDS power circuit can convert mainboard input voltage；LVDS input RGB port circuit can transfer mainboard
Rgb signal inputted to master chip, rgb signal is converted to LVDS output circuit by master chip；USB control circuit is connect by USB
Mouth chip is converted to serial signal and is connected to master chip, and computer is connected to the USB interface, passes through order control LVDS operation
Parameter.
Preferably, the mainboard further includes any one of serial ports connector, SD card and debugging port or multiple combinations；
The serial ports connector is connected with serial port circuit；The SD card is connected with SD card circuit；The debugging port setting exists
It debugs on port circuit；The mainboard RGB output port is connected with mainboard RGB output circuit, i.e., the described mainboard passes through mainboard RGB
Output circuit is connected with LVDS output board.
Preferably, the LVDS output board further includes LVDS output port and/or USB port；
The LVDS output port is connected with LVDS output circuit；The USB port is connected with USB control circuit；It is described
LVDS inputs the port RGB and is connected with LVDS input RGB port circuit, i.e., the described LVDS output board inputs the port RGB by LVDS
Circuit is connected with mainboard.
Preferably, the core board further includes central processor CPU, and the central processor CPU is arranged in core board master
On chip circuit.
A kind of LVDS video source module application method provided according to the present invention, using above-mentioned LVDS video source module,
Including Connection Step；
Connection Step: successively core board, mainboard and LVDS output board are linked together by inserting terminal, by serial ports
Connector and USB port are connected to the computer of setting, and LVDS output port is connected with the target product of setting；
Wherein the inserting terminal includes output switching male terminal, mainboard Transit Core plate female terminal, mainboard RGB output end
Mouth and LVDS input the port RGB.
Preferably, the LVDS video source module application method further includes communication steps；
Communication steps: the central processor CPU being arranged on core board is programmed, central processor CPU is led to
It crosses serial ports connector to communicate with the computer of setting, and regard the communication of the computer of the setting as upper control machine, upper control machine
The picture or video of setting format in SD card are read, with the format output rgb signal of setting to core board, core board will be received
Rgb signal is converted to LVDS signal and exports through LVDS output port to the target product of setting.
Preferably, the target product of the setting includes the chip with LVDS output board Corresponding matching model.
Compared with prior art, the present invention have it is following the utility model has the advantages that
1, LVDS video source module provided by the invention, have high-speed, low radiation, low-power consumption, high anti-interference ability it is excellent
Point；
2, LVDS video source module provided by the invention, is arranged using modular removable, has that wide usage is strong, can expand
The strong advantage of property；
3, LVDS video source module and its application method provided by the invention, support the vision signal of multiple format, operation
It is easy, highly reliable.
Detailed description of the invention
Upon reading the detailed description of non-limiting embodiments with reference to the following drawings, other feature of the invention,
Objects and advantages will become more apparent upon:
Fig. 1 is the schematic diagram of LVDS video source module preference provided by the invention；
Fig. 2 is the schematic diagram of core board in LVDS video source module preference provided by the invention；
Fig. 3 is the schematic diagram of mainboard in LVDS video source module preference provided by the invention；
Fig. 4 is the schematic diagram of LVDS output board in LVDS video source module preference provided by the invention；
It is shown in figure:
Core board 1
Core board master chip circuit 101
Core board exports built-up circuit 102
Mainboard 2
Motherboard power supply circuit 201
SD card circuit 202
Debug port circuit 203
Serial port circuit 204
Mainboard RGB output circuit 205
Mainboard inputs built-up circuit 206
LVDS output board 3
LVDS master chip circuit 301
LVDS inputs RGB port circuit 302
USB control circuit 303
LVDS power circuit 304
LVDS output circuit 305
Output switching male terminal 4
Mainboard Transit Core plate female terminal 5
Serial ports connector 6
SD card 7
Debug port 8
Mainboard RGB output port 9
LVDS inputs the port RGB 10
LVDS output port 11
USB port 12
Specific embodiment
The present invention is described in detail combined with specific embodiments below.Following embodiment will be helpful to the technology of this field
Personnel further understand the present invention, but the invention is not limited in any way.It should be pointed out that the ordinary skill of this field
For personnel, without departing from the inventive concept of the premise, several changes and improvements can also be made.These belong to the present invention
Protection scope.
A kind of LVDS video source module provided according to the present invention, including core board 1, mainboard 2 and LVDS output board 3；
The core board 1 includes output switching male terminal 4；The mainboard 2 includes 5 He of mainboard Transit Core plate female terminal
Mainboard RGB output port 9；The LVDS output board 3 includes that LVDS inputs the port RGB 10；
The core board 1 and mainboard 2 are by exporting switching male terminal 4 and mainboard Transit Core plate female terminal 5 removably
Connection；The mainboard 2 and LVDS output board 3 input the port RGB 10 by mainboard RGB output port 9 and LVDS and removably connect
It connects.
The core board 1 includes core board master chip circuit 101, further includes core board output built-up circuit 102, crystal oscillator electricity
Any one of road, reset circuit and input/output port appoint multiple combinations；
The core board output built-up circuit 102 is connected with output switching male terminal 4, i.e., core board 1 is defeated by core board
Built-up circuit 102 is connected with mainboard 2 out；
Core board output built-up circuit 102, crystal oscillating circuit, reset circuit and input/output port are and core board
Master chip circuit 101 is connected.
The mainboard 2 includes motherboard power supply circuit 201, further includes SD card circuit 202, JTAG debugging port circuit 203, string
Any one of mouth circuit 204, mainboard RGB output circuit 205 and mainboard input built-up circuit 206 appoint multiple combinations；
The mainboard input built-up circuit 206 is connected with mainboard Transit Core plate female terminal 5, i.e., mainboard 2 is defeated by mainboard
Enter built-up circuit 206 to be connected with core board 1；
The SD card circuit 202 is directly connected to by core board built-up circuit 102 with core board 1, and core board CPU passes through volume
Journey can read the picture and video stored in SD card；Port circuit 203 is debugged to debug for system software, it can be with external JTAG
Debugger is directly connected to, and when system normal use does not need to connect；Serial port circuit 204 is connect with serial ports of computers, for calculating
Machine sends control instruction；Mainboard RGB output circuit 205 is read in SD card in core board switchs to RGB electric signal after image or video
Output arrives LVDS output board 3 using mainboard input built-up circuit 206.
The LVDS output board 3 includes LVDS power circuit 304, further includes LVDS input RGB port circuit 302, USB
Control circuit 303 and LVDS output circuit 305；
It is that+3.3V voltage is supplied for MAX9275 chip that the LVDS power circuit 304, which converts+5V the voltage that mainboard 2 inputs,
Electricity；The rgb signal that LVDS inputs the switching mainboard 2 of RGB port circuit 302 is inputted to MAX9275 chip, is converted by MAX9275
Rgb signal is to LVDS output circuit 305；USB control circuit 303 is converted to serial signal by USB interface chip FT232R and connects
It is connected to MAX9275, computer is connected to the USB interface, controls LVDS operating parameter by order.；
The mainboard 2 further includes any one of serial ports connector 6, SD card 7 and debugging port 8 or multiple combinations；
The serial ports connector 6 is connected with serial port circuit 204；The SD card 7 is connected with SD card circuit 202；The debugging end
8 setting of mouth is on debugging port circuit 203；The mainboard RGB output port 9 is connected with mainboard RGB output circuit 205, i.e. institute
Mainboard 2 is stated to be connected by mainboard RGB output circuit 205 with LVDS output board 3.
The LVDS output board 3 further includes LVDS output port 11 and/or USB port 12；
The LVDS output port 11 is connected with LVDS output circuit 305；The USB port 12 and USB control circuit 303
It is connected；The input port RGB 10 LVDS is connected with LVDS input RGB port circuit 302, i.e., the described LVDS output board 3 passes through
LVDS input RGB port circuit 302 is connected with mainboard 2.
The core board 1 further includes central processor CPU, is programmed by CPU, and picture and video in SD card, conversion are read
For rgb signal, rgb signal is converted to LVDS signal by MAX9275 chip and exports, which can be used as other products LVDS
Input signal uses；The central processor CPU is arranged on core board master chip circuit 101.
A kind of LVDS video source module application method provided according to the present invention, using above-mentioned LVDS video source module,
Including Connection Step；
Connection Step: successively being linked together core board 1, mainboard 2 and LVDS output board 3 by inserting terminal, will
Serial ports connector 6 and USB port 12 are connected to the computer of setting, and LVDS output port 11 is connected with the target product of setting；
Wherein the inserting terminal is defeated including output switching male terminal 4, mainboard Transit Core plate female terminal 5, mainboard RGB
Exit port 9 and LVDS input the port RGB 10.
The LVDS video source module application method further includes communication steps；
Communication steps: the central processor CPU being arranged on core board 1 is programmed, central processor CPU is led to
It crosses serial ports connector 6 to communicate with the computer of setting, and regard the communication of the computer of the setting as upper control machine, upper control machine
The picture or video of setting format in SD card 7 are read, with the format output rgb signal of setting to core board 1, core board 1 will be connect
The rgb signal of receipts is converted to target product of the LVDS signal through the output of LVDS output port 11 to setting.
The target product of the setting includes the chip with 3 Corresponding matching model of LVDS output board.
Further, preference of the invention is totally divided into three parts, including core board 1, mainboard 2, LVDS output board
3, three parts are formed a whole by inserting terminal；Being divided into three parts main cause is to expand use, core board 1 later
Mainly CPU part does not need to change；If desired mainboard 2 increases function and port, can repaint pcb board；LVDS is defeated
The chip that ejecting plate 3 can be used according to target replaces with other models, and the present invention is mainly stated with MAX9275, with this chip pair
It is MAX9276 that the LVDS answered, which receives chip,；
Core board 1 includes: master chip STM32F429 as host CPU, and 32 8-digit microcontrollers of ST company exploitation are based on
Cortex-M4 kernel has rgb interface, supports RGB565 and RGB888 format；Crystal oscillating circuit, reset circuit and input and output
Port；
Mainboard 2 includes: motherboard power supply circuit 201, output+5V and+3.3V voltage, is used for master chip and peripheral circuit；
SD card circuit 202 reads picture and video in blocking for CPU；Jtag circuit (i.e. debugging port circuit 203) is for debugging master
CPU and programming program；Serial port circuit 204 with computer for communicating, file in control host CPU input and output and reading SD card 7,
It generates rgb signal and gives LVDS chip MAX9275；And the RGB output port docked with LVDS plate (corresponds to mainboard RGB output electricity
Road 205) and dock with core board input/output port (correspond to mainboard and input built-up circuit 206)；
LVDS output board includes: LVDS chip MAX9275 and peripheral circuit (i.e. LVDS master chip circuit 301)；LVDS is defeated
Enter the port RGB 10 (correspond to LVDS and input RGB port circuit 302) and conditioning circuit；USB turns serial port circuit and (corresponds to USB
Control circuit 303), MAX9275 is controlled for external command；LVDS power circuit 304 is for generating the confession of+1.8V voltage
MAX9275 is used；And LVDS output port 11 (corresponding to LVDS output circuit 305)；
Preference of the present invention realizes that CPU is logical by serial ports and computer by programming to core board CPU STM32F429
Letter is used for PC control；And picture and video in SD card can be read, output rgb signal can be set according to intended recipient standard
Output RGB565 or RGB888 video format is set, which reaches MAX9275 chip, it is defeated through port to be converted to LVDS signal
Out, at this moment the corresponding product for receiving chip using MAX9276LVDS can receive the signal for showing.
Core board, mainboard, LVDS output board are linked together by inserting terminal, serial ports terminal is connected to computer,
USB port is connected to computer, the target product that there is the connection of the port output board LVDS LVDS MAX9276 to receive chip, mainboard J1
Terminal connects less than 24V DC power supply, and D1 is reversed for anti-power supply, by power supply chip Q1NCV4275 output+5V voltage,
Q2NCV1117 output+3.3V voltage is used for core board and LVDS output board；Core board CPU is by I/O port by patching
Part switching connection SD card, MAX3232CSE, JTAG debugging port, MAX9275, USB turn serial port chip FT232R；
Serial ports for computer control module instructs:
Computer terminal serial port setting rate 115200,8, N, 1；
VER ︺ ︺ ︺ ︺ ︺ ︺ ︺ ︺ ︺ ︺ ︺ ︺ ︺ ︺ ︺ ︺ ︺ ︺ ︺ ︺ ︺ ︺ --- display current version；
LCD, INIT (, 420,3) and ︺ ︺ ︺ ︺ ︺ ︺ ︺ ︺ --- setting LCD is initialized, and printenv uses as default,
420 be refresh rate, and 3 be frequency division value；
LCD, SIZE, 480,240 ︺ ︺ ︺ ︺ ︺ ︺ ︺ ︺ ︺ --- setting LCD resolution are defaulted as 480*240；
One JPG figure of LCD, JPG, xxx ︺ ︺ ︺ ︺ ︺ ︺ ︺ ︺ ︺ ︺ ︺ ︺ ︺ ︺ --- display, xxx is filename,
Suffix is necessary for .JPG without input；
One BMP figure of LCD, BMP, xxx ︺ ︺ ︺ ︺ ︺ ︺ ︺ ︺ ︺ ︺ ︺ ︺ ︺ ︺ --- display, xxx is filename,
Suffix is necessary for .BMP without input；
LCD, AVI, xxx ︺ ︺ ︺ ︺ ︺ ︺ ︺ ︺ ︺ ︺ ︺ ︺ ︺ ︺ --- display video file, xxx is filename, after
Sew and is necessary for .AVI without input；
LCD, RED ︺ ︺ ︺ ︺ ︺ ︺ ︺ ︺ ︺ ︺ ︺ ︺ ︺ ︺ ︺ ︺ ︺ ︺ --- display current LCD is red, this
Display is different from red picture processing mode is called；
LCD, GREEN ︺ ︺ ︺ ︺ ︺ ︺ ︺ ︺ ︺ ︺ ︺ ︺ ︺ ︺ ︺ ︺ --- display current LCD is green；
LCD, BLUE ︺ ︺ ︺ ︺ ︺ ︺ ︺ ︺ ︺ ︺ ︺ ︺ ︺ ︺ ︺ ︺ ︺ --- display current LCD is blue；
LCD, BLACK ︺ ︺ ︺ ︺ ︺ ︺ ︺ ︺ ︺ ︺ ︺ ︺ ︺ ︺ ︺ ︺ --- display current LCD are black；
LCD, WHILE ︺ ︺ ︺ ︺ ︺ ︺ ︺ ︺ ︺ ︺ ︺ ︺ ︺ ︺ ︺ ︺ --- display current LCD is white；
LCD, FILEJPG, 1,12,2000,5 ︺ ︺ ︺ ︺ ︺ ︺ ︺ ︺ ︺ ︺ ︺ ︺ ︺ ︺ --- show that multiple JPG scheme, 1
It is ends file name for initial filename, 12, it is necessary to numerical designation；2000 be interval time, and 5 be circulation 5 times, no circulation time
Count parameter then Infinite Cyclic；
LCD, FILEBMP, 1,12,2000,5 ︺ ︺ ︺ ︺ ︺ ︺ ︺ ︺ ︺ ︺ ︺ ︺ ︺ ︺ --- show that multiple BMP scheme,
It is other with JPG identical parameters, any order is sent in circulation will move out；
USB turns serial port chip FT232R, and common serial communication rate maximum can be reached generally in 128k using FT232R
To the rate of 1M, meet the transmission that control signal is carried out by LVDS communication line；TX, RX of FT232R directly with MAX9275 core
Piece connection, can directly be received by LVDS communication line by MAX9276 by the data command that USB port is sent, then produce with target
Product realize data communication；
Wherein ︺ indicates space.
Further, preference of the invention has the advantage that
1) LVDS refers to Low Voltage Differential Signal, is a kind of new technique of high-performance data transmission application, has high-speed,
Low radiation, low-power consumption, high anti-interference ability.
2) use ST company 32-bit microprocessor STM32F429, the chip support RGB output, support RGB565 with
RGB888 format；
3) LVDS video stream data conversion uses Maxin company chip MAX9275, is produced STM32F429 using the chip
Raw rgb signal is converted to LVDS signal；
4) the pairs of chip MAX9276 chip of LVDS can transcoding be used to show again by LVDS；
The design uses 32 8-digit microcontroller STM32F429 of ST company exploitation, is based on Cortex-M4 kernel, has RGB
Interface supports RGB565 and RGB888 format.The conversion of LVDS video stream data uses the MAX9275 chip of Maxim company, benefit
The STM32F429 rgb signal generated is converted into LVDS signal with the chip, and product corresponds to the pairs of chip MAX9276 of LVDS
Chip can transcoding be used to show again by LVDS, which is used to produce the test macro with LVDS interface product, solves to produce
Line LVDS video source signal problem, and the serial data communication of maximum 1M rate can be realized by USB port.
The present invention is combined by core board, mainboard, LVDS output board, for generating LVDS signal, similar to generator, and
It is non-that multy-way switching selection is made to LVDS signal, the handover scheme of some LVDS exists in the prior art；There is LVDS when one
The product of interface, such as automobile instrument, auto navigation, the device display screen can show own content or LVDS input image or
Video；In manufacturing the automobile instrument or navigation procedure, need to test the reliability of the port LVDS, it can normal transmission
LVDS signal, it is necessary to which the generator of a LVDS signal, the present invention realize the generator function of LVDS signal, energy of the present invention
The image and video of generation LVDS signal are simultaneously exported and are controlled.
In the description of the present application, it is to be understood that term " on ", "front", "rear", "left", "right", " is erected at "lower"
Directly ", the orientation or positional relationship of the instructions such as "horizontal", "top", "bottom", "inner", "outside" is orientation based on the figure or position
Relationship is set, description the application is merely for convenience of and simplifies description, rather than the device or element of indication or suggestion meaning are necessary
It with specific orientation, is constructed and operated in a specific orientation, therefore should not be understood as the limitation to the application.
Specific embodiments of the present invention are described above.It is to be appreciated that the invention is not limited to above-mentioned
Particular implementation, those skilled in the art can make a variety of changes or modify within the scope of the claims, this not shadow
Ring substantive content of the invention.In the absence of conflict, the feature in embodiments herein and embodiment can any phase
Mutually combination.
Claims (10)
1. a kind of LVDS video source module, which is characterized in that including core board (1), mainboard (2) and LVDS output board (3)；
The core board (1) includes output switching male terminal (4)；The mainboard (2) includes mainboard Transit Core plate female terminal (5)
With mainboard RGB output port (9)；The LVDS output board (3) includes the LVDS input port RGB (10)；
The core board (1) and mainboard (2) are removable by output switching male terminal (4) and mainboard Transit Core plate female terminal (5)
It connects with unloading；The mainboard (2) and LVDS output board (3) pass through mainboard RGB output port (9) and the LVDS input port RGB
(10) detachably connected.
2. LVDS video source module according to claim 1, which is characterized in that the core board (1) includes core board master
Chip circuit (101) further includes core board output built-up circuit (102), crystal oscillating circuit, reset circuit and input/output port
Any one of or appoint multiple combinations；
Core board output built-up circuit (102) is connected with output switching male terminal (4), i.e., core board (1) passes through core board
Output built-up circuit (102) is connected with mainboard (2)；
Core board output built-up circuit (102), crystal oscillating circuit, reset circuit and input/output port with core board master
Chip circuit (101) is connected.
3. LVDS video source module according to claim 1, which is characterized in that the mainboard (2) includes motherboard power supply electricity
Road (201) further includes SD card circuit (202), JTAG debugging port circuit (203), serial port circuit (204), mainboard RGB output electricity
Multiple combinations are appointed on any one of road (205) and mainboard input built-up circuit (206)；
Mainboard input built-up circuit (206) is connected with mainboard Transit Core plate female terminal (5), i.e., mainboard (2) passes through mainboard
Input built-up circuit (206) is connected with core board (1)；
The SD card circuit (202) is directly connected to by core board built-up circuit (102) with core board (1)；Debug port circuit
(203) it is directly connected to outside JTAG debugger；Serial port circuit (204) is connect with serial ports of computers；Mainboard RGB output circuit
(205) it is connected by mainboard input built-up circuit (206) with LVDS output board (3).
4. LVDS video source module according to claim 1, which is characterized in that the LVDS output board (3) includes LVDS
Power circuit (304) further includes LVDS input RGB port circuit (302), USB control circuit (303) and LVDS output circuit
(305)；
The LVDS power circuit (304) can convert mainboard (2) input voltage；LVDS inputs RGB port circuit (302) can
The rgb signal of switching mainboard (2) is inputted to master chip, converts rgb signal to LVDS output circuit (305) by master chip；USB control
Circuit (303) processed is converted to serial signal by USB interface chip and is connected to master chip, and computer is connected to the USB interface, leads to
Cross order control LVDS operating parameter.
5. LVDS video source module according to claim 3, which is characterized in that the mainboard (2) further includes serial ports connector
(6), any one of SD card (7) and debugging port (8) or multiple combinations；
The serial ports connector (6) is connected with serial port circuit (204)；The SD card (7) is connected with SD card circuit (202)；The tune
Port (8) setting is tried in debugging port circuit (203)；The mainboard RGB output port (9) and mainboard RGB output circuit
(205) it is connected, i.e., the described mainboard (2) is connected by mainboard RGB output circuit (205) with LVDS output board (3).
6. LVDS video source module according to claim 4, which is characterized in that the LVDS output board (3) further includes
LVDS output port (11) and/or USB port (12)；
The LVDS output port (11) is connected with LVDS output circuit (305)；The USB port (12) and USB control circuit
(303) it is connected；The LVDS input port RGB (10) is connected with LVDS input RGB port circuit (302), i.e., the described LVDS is defeated
Ejecting plate (3) is connected by LVDS input RGB port circuit (302) with mainboard (2).
7. LVDS video source module according to claim 2, which is characterized in that the core board (1) further includes centre
Device CPU is managed, the central processor CPU is arranged on core board master chip circuit (101).
8. a kind of LVDS video source module application method, which is characterized in that using described in any one of any one of claims 1 to 77
LVDS video source module, including Connection Step；
Connection Step: successively being linked together core board (1), mainboard (2) and LVDS output board (3) by inserting terminal,
Serial ports connector (6) and USB port (12) are connected to the computer of setting, by the target product of LVDS output port (11) and setting
It is connected；
Wherein the inserting terminal includes output switching male terminal (4), mainboard Transit Core plate female terminal (5), mainboard RGB output
Port (9) and the LVDS input port RGB (10).
9. LVDS video source module application method according to claim 8, which is characterized in that the LVDS video source module
Application method further includes communication steps；
Communication steps: the central processor CPU being arranged on core board (1) is programmed, central processor CPU is passed through
Serial ports connector (6) is communicated with the computer of setting, and regard the communication of the computer of the setting as upper control machine, upper control machine
The picture or video of setting format in SD card (7) are read, rgb signal is exported to core board (1), core board with the format of setting
(1) received rgb signal is converted into target product of the LVDS signal through LVDS output port (11) output to setting.
10. LVDS video source module application method according to claim 8 or claim 9, which is characterized in that the target of the setting
Product includes the chip with LVDS output board (3) Corresponding matching model.
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| CN201910596434.5A CN110262990A (en) | 2019-07-03 | 2019-07-03 | LVDS video source module and its application method |
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