CN206024015U - Double video interfaces export development board - Google Patents

Abstract

The utility model discloses a kind of pair of video interface exports development board, the engineering device technique field for executing special procedure is related to.The development board includes that BGA 441PIN type master chips, the CSI0/TS pins and TWI1 pins of master chip are connected with camera module；The LCD pins and TWI3 pins of master chip is connected with LCD module, makes LCD module be operated in LVDS and RGB compatibility modes；The HDMI pins of master chip are connected with HDMI after being connected with HDMI module；The TVOUT pins of master chip are connected with CVBS interfaces after being connected with CVBS modules；The GMAC pins of master chip are connected with RJ45 interfaces through ethernet module.The development board can realize the functions such as double video interface outputs, netcast, video entertainment, vdiverse in function, easy to use.

Description

Double video interfaces export development board

Technical field

This utility model relates to the engineering device technique field for executing special procedure, more particularly to a kind of pair of video interface is defeated Go out development board.

Background technology

Development board common at present is based substantially on commercial Application, and the supporting dynamics to video and network is inadequate, processes video Especially the display of double vision frequency is particularly difficult.

Utility model content

Technical problem to be solved in the utility model is to provide a kind of pair of video interface output development board, the development board The functions such as double video interface outputs, netcast, video entertainment can be realized, vdiverse in function, easy to use.

For solving above-mentioned technical problem, technical solution adopted in the utility model is：A kind of pair of video interface output is opened Send out plate, it is characterised in that：Including BGA-441PIN type master chips, the EEPROM pins and TWI2 pins of the master chip with EEPROM module connects；The IR-OUT pins of the master chip are connected with infrared remote receiver；The CSI0/TS pins of master chip and TWI1 pins are connected with camera module；The LCD pins and TWI3 pins of master chip is connected with LCD module, makes LCD module work Make in LVDS and RGB compatibility modes；The HDMI pins of master chip are connected with HDMI after being connected with HDMI module；Master chip TVOUT pins are connected with CVBS interfaces after being connected with CVBS modules；The GMAC pins of master chip are connect with RJ45 through ethernet module Mouth connection；The RTC pins of master chip, POWRE system pins and TWI0 pins are connected with power management module；Master chip DRAMC pins be connected with DDR3 type memory modules；The SATA pins of master chip are connected with hard disk；The Audio of master chip Codec pins are connected with earphone and mike respectively；The OSC pins of master chip are connected with crystal oscillator；The USB0 pins of master chip with USB drive modules connect；The USB1-USB2 pins of master chip are connected with USB main equipment；The CAN pins of master chip, PWM0 draw Outside foot, TWI4 pins, SPI0-SPI1 pins, UART2 pins, UART3 pins, UART5 pins and UART6 pins and first Portion's interface connection；The UART0 pins and ADC0 pins of master chip is connected with the second external interface；The UART7 pins of master chip And GPIO pin is connected with the 3rd external interface.

Further technical scheme is：The SD/MMC0 pins of the master chip are connected with SD card.

Further technical scheme is：The power management module uses PMU AXP209 type power management chips, institute The stand-by power supply of battery management module is stated using 3V button cells, the Micro USB interface on power management core rod piece is used for real Existing externally fed；POWER ON buttons and RESET buttons on power management chip is used for realizing switching on and shutting down and reset function, electric Source control chip is connected with master chip by TWI0 pins, is realized the management to power supply chip and is preset.

Further technical scheme is：The HDMI module is provided with electrostatic protection module.

Further technical scheme is：The ethernet module uses RTL8211.

It is using the beneficial effect produced by above-mentioned technical proposal：The development board includes that HDMI and CVBS connect Mouthful, can achieve double video interfaces outputs, and combine Ethernet application, while can the abundant peripheral hardware such as external camera, realize net Network is played, the function such as video entertainment, embeds SATA interface and USB interface, can connect hard disk and mouse-keyboard, operation linux and The systems such as android, convenient operation.

Description of the drawings

With reference to the accompanying drawings and detailed description this utility model is described in further detail.

Fig. 1 is theory diagram of the present utility model；

Fig. 2 is the theory diagram of power management module in this utility model.

Specific embodiment

With reference to the accompanying drawing in this utility model embodiment, the technical scheme in this utility model embodiment is carried out clearly Chu, it is fully described by, it is clear that described embodiment is only a part of embodiment of the present utility model, rather than whole Embodiment.Embodiment in based on this utility model, those of ordinary skill in the art are not under the premise of creative work is made The every other embodiment for being obtained, belongs to the scope of this utility model protection.

A lot of details are elaborated in the following description in order to fully understand this utility model, but this practicality is new Type can also be different from alternate manner described here using other to implement, and those skilled in the art can be without prejudice to this reality With similar popularization is done in the case of new intension, therefore this utility model is not limited by following public specific embodiment.

As shown in figure 1, this utility model discloses a kind of pair of video interface output development board, including ALLWINNER companies A20 chips：BGA-441PIN.The EEPROM pins and TWI2 pins of the master chip is connected with EEPROM module；The master The IR-OUT pins of chip are connected with infrared remote receiver；The CSI0/TS pins and TWI1 pins and camera module of master chip Connection；The LCD pins and TWI3 pins of master chip is connected with LCD module, makes LCD module be operated in LVDS and RGB compatibility moulds Formula；The HDMI pins of master chip are connected with HDMI after being connected with HDMI module；The TVOUT pins of master chip and CVBS modules It is connected with CVBS interfaces after connection；HDMI module protects electrostatic by ESD protectors, by dividing between CVBS modules and TVOUT Vertical components and parts protection.

The GMAC pins of master chip are connected with RJ45 interfaces through ethernet module, and preferably described ethernet module is used RTL821；The SD/MMC0 pins of the master chip are connected with SD card；The RTC pins of master chip, POWRE system pins and TWI0 pins are connected with power management module；The DRAMC pins of master chip are connected with DDR3 type memory modules；The SATA of master chip Pin is connected with hard disk；The Audio codec pins of master chip are connected with earphone and mike respectively；The OSC pins of master chip It is connected with crystal oscillator；The USB0 pins of master chip are connected with USB drive modules；The USB1-USB2 pins of master chip and USB main equipment Connection；The CAN pins of master chip, PWM0 pins, TWI4 pins, SPI0-SPI1 pins, UART2 pins, UART3 pins, UART5 pins and UART6 pins are connected with the first external interface；The UART0 pins of master chip and ADC0 pins and second External interface connects；The UART7 pins of master chip and GPIO pin are connected with the 3rd external interface.

As shown in Fig. 2 the power management module uses PMU AXP209 type power management chips, the battery management mould The stand-by power supply of block uses 3V button cells, the Micro USB interface on power management core rod piece to be used for realizing externally fed；Electricity POWER ON buttons and RESET buttons on source control chip is used for realizing that switching on and shutting down and reset function, power management chip are led to Cross TWI0 pins to be connected with master chip, realize the management to power supply chip and preset.

The development board includes HDMI and CVBS interfaces, can achieve double video interface outputs, and should with reference to Ethernet With, at the same can the abundant peripheral hardware such as external camera, realize the functions such as netcast, video entertainment, embed SATA interface and USB Interface, can connect the systems such as hard disk and mouse-keyboard, operation linux and android, convenient operation.

Claims (5)

1. a kind of pair of video interface exports development board, it is characterised in that：Including BGA-441PIN type master chips, the master chip EEPROM pins and TWI2 pins are connected with EEPROM module；The IR-OUT pins of the master chip are connected with infrared remote receiver Connect；The CSI0/TS pins and TWI1 pins of master chip is connected with camera module；The LCD pins of master chip and TWI3 draw Foot is connected with LCD module, makes LCD module be operated in LVDS and RGB compatibility modes；The HDMI pins of master chip are connected with HDMI module It is connected with HDMI after connecing；The TVOUT pins of master chip are connected with CVBS interfaces after being connected with CVBS modules；Master chip GMAC pins are connected with RJ45 interfaces through ethernet module；The RTC pins of master chip, POWRE system pins and TWI0 draw Foot is connected with power management module；The DRAMC pins of master chip are connected with DDR3 type memory modules；The SATA pins of master chip with Hard disk connects；The Audio codec pins of master chip are connected with earphone and mike respectively；The OSC pins of master chip and crystal oscillator Connection；The USB0 pins of master chip are connected with USB drive modules；The USB1-USB2 pins of master chip are connected with USB main equipment； The CAN pins of master chip, PWM0 pins, TWI4 pins, SPI0-SPI1 pins, UART2 pins, UART3 pins, UART5 pins And UART6 pins are connected with the first external interface；The UART0 pins and ADC0 pins of master chip and the second external interface connect Connect；The UART7 pins of master chip and GPIO pin are connected with the 3rd external interface.

2. double video interfaces as claimed in claim 1 export development board, it is characterised in that：The SD/MMC0 of the master chip draws Foot is connected with SD card.

3. double video interfaces as claimed in claim 1 export development board, it is characterised in that：The power management module is used PMU AXP209 type power management chips, the stand-by power supply of the battery management module use 3V button cells, power management mould Micro USB interface on chip is used for realizing externally fed；POWER ON buttons and RESET buttons on power management chip For realizing that switching on and shutting down and reset function, power management chip are connected with master chip by TWI0 pins, realize to power supply chip Management and default.

4. double video interfaces as claimed in claim 1 export development board, it is characterised in that：The HDMI module is provided with electrostatic Protection module.

5. double video interfaces as claimed in claim 1 export development board, it is characterised in that：The ethernet module is used RTL8211.