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board:lcd-0169:hdmi_rev_1.4

HDMI 7" RipDraw 65-0002-002 Rev 1.4

hdmi_ripdraw_1.4.jpg

Connectors

Power Supply Connector (J1)

PinNameDescription
1 5V 5V 2A DC
2 GND Ground

LCD Connector (J2)

Pin Name Description
1 GND Ground
2 NC No Connection
3-4 VCC 3.3V 2A DC
5-6 VCC 3.3V 2A DC
7 GND Ground
8 Y0M Negative LVDS Differential 0th Data
9 Y0P Positive LVDS Differential 0th Data
10 GND Ground
11 Y1M Negative LVDS Differential 1st Data
12 Y1P Positive LVDS Differential 1st Data
13 GND Ground
14 Y2M Negative LVDS Differential 2nd Data
15 Y2P Positive LVDS Differential 2nd Data
16 GND Ground
17 CLKM Negative LVDS Differential CLK Data
18 CLKP Positive LVDS Differential CLK Data
19 GND Ground
20 Y3M Negative LVDS Differential 3rd Data
21 Y3P Positive LVDS Differential 3rd Data
22 GND Ground
23 NC No Connection
24-25-26BL_LED+ Back-Light LED Positive Terminal END
27 NC No Connection
28-29-30BL_LED- Back-Light LED Negative Terminal END

PIC Controller Output (J4)

Not installed on production version.

PIC Controller Programming (J3)

Not installed on production version.

EEPROM Programming (J5)

Pin Name Description
1 SCL EEPROM SCL
2 TEST EEPROM Test
3 SDA EEPROM SDA
4 GND Ground

External PWM and Enable control (J6)

Pin Name Description
1 VCC 3.3V for host system,it uses this power
2 PWM PWM signal to controller backlight. It is approximated 32 KHz frequency.
By default, constant 3.3V voltage provides the 100% duty cycle for maximum brightness.
3 GND Ground
4 EN Active high enable signal to on(3.3V)/off(0V) backlight. To turn back light off,supply 0V.
By default it is high to turn on back light.

If you want to control the brightness of a LED you will need PWM. The image shows PWM being used to control the brightness. Duty cycles describes the proportion of ON state of the backlight. 0% duty cycle turns off the back light. 100% duty cycle gives maximum brightness.

pwm.jpg

External USB Touch Connector (J7)

PinNameDescription
1 5V 5V power
2 D- Data differential pair minus
3 D+Data differential pair plus
4 IDOn the Go Identification
5 GND Ground

HDMI Connector (J8)

Pin Name Description
1 Rx2+ Digital Input Channel2 True
2 GND Ground
3 Rx2- Digital Input Channel2 Complement
4 Rx1+ Digital Input Channel1 True
5 GND No Connection
6 Rx1- Digital Input Channel1 Complement
7 Rx0+ Digital Input Channel0 True
8 GND Ground
9 Rx0- Digital Input Channel0 Complement
10 RxC+ Digital Data Clock True
11 GND Ground
12 RxC- Digital Data Clock Complement
13-14NC No Connection
15 HDMI_SCLHDMI SCL for EEPROM EDID
16 HDMI_SDAHDMI SDA for EEPROM EDID
17 GND Ground
18 NC No Connection
19 HDMI_DETECTHDMI Detect pin

External I2C Touch Connector (J9)

Pin Name Description
1 VCC 3.3/5V 2A DC
2 TS_INT GPIO Interrupt Signal
3 NC No connection
4 TS_RESET GPIO Reset Signal
5 NC No connection
6 TS_SDA I2C Data Signal
7 GND Ground
8 TS_SCL I2C Clock Signal

Touch Pad Connector(J11)

PinName Description
1 VCC 5V/3.3V 2A DC
2 USB D- USB Data minus
3 USB D+ USB Data Plus
4 GND Ground
5 TS_INT GPIO Interrupt Signal
6 TS_RESETGPIO Reset Signal
7 TS_SDA I2C Data Signal
8 TS_SCL I2C Clock Signal
9 GND Ground

Jumpers Configuration

Touch Interface Voltage Selection (J10)

This jumper used to set the Touch Panel operating voltage selection.

Pin Description
1-2 USB 5V, for USB touch interface voltage
3-4 I2C 3.3V, for I2C touch interface voltage
Last modified: 2014/10/09 07:58

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