User Manual

Chapter 2 Hardware Information 8
Rockchip RK3399 Platform
RICO-3399
2.3.3 eDP Port Voltage Selection (JP4)
Pin
Definition
1-2
+5V
2-3
+3.3V
2.3.4 eDP Port Backlight Voltage Selection (JP5)
Pin
Definition
1-2
+5V
2-3
+12V
2.3.5 Integrated (UART/I2C/GPIO/Others) (JP6)
Pin
Definition
Pin
Definition
1
+3.3V
6
I2C1_CLK
2
GPIO0
7
GND
3
UART4_TX
8
I2C1_DATA
4
GPIO1
9
GPIO2
5
UART4_RX
10
GPIO3
2.3.6 COM Port Setting (JP7/JP8)
Mode
JP7
JP8
RS422
Open
Open
RS232
Open
Short
RS485
Short
Short