User Manual

Chapter 2 Hardware Information 7
Rockchip RK3399 Platform
RICO-3399
2.3 List of Jumpers
Please refer to the table below for all of the boards jumpers that you can configure for
your application
Label
Function
JP2
Power Button
JP3
RS-232/422/485 (D-Sub) Voltage Output Selection
JP4
eDP Port Voltage Selection
JP5
eDP Port Backlight Voltage Selection
JP6
Integrated (UART/I2C/GPIO/Others)
JP7/ JP8
COM port setting
SW1
Image Flash Switch
2.3.1 Power Button (JP2)
Pin
Definition
1
PWR_KEY#
2
GND
2.3.2 RS-232/422/485 (D-Sub) Voltage Output Selection (JP3)
Pin
Definition
1
12V
2
R1#/12V/5V
3
5V