Using A 7" Lcd Display; Using A Vga Display; Using An Lvds Display; Testing - Embest SBC8600B Quick Start Manual

6.7.3 Using a 7" LCD Display

Modify the parameter by executing the command as follows in the U-boot
command mode.
SBC8600# setenv dispmode 7inch_LCD
SBC8600# saveenv

6.7.4 Using a VGA Display

Modify the parameter by executing the command as follows in the U-boot
command mode.
SBC8600# setenv dispmode VGA
SBC8600# saveenv

6.7.5 Using an LVDS Display

Modify the parameter by executing the command as follows in the U-boot
command mode.
SBC8600# setenv dispmode LVDS
SBC8600# saveenv

6.8 Testing

6.8.1 LED Testing

The D35 LED on the board is the system indicator, D36 is a user customisable
LED.
The following operations are accomplished in HyperTerminal:
1. Controlling system indicator
root@SBC8600:~# echo 1 > /sys/class/leds/sys_led/brightness
root@SBC8600:~# echo 0 > /sys/class/leds/sys_led/brightness
2. Controlling user custom LED
root@SBC8600:~# echo 1 > /sys/class/leds/user_led/brightness
root@SBC8600:~# echo 0 > /sys/class/leds/user_led/brightness
The LED will respond accordingly to the instructions.

6.8.2 KEYPAD Testing

The board has two user custom keys, BACK and MENU. You can test them by
executing the following instructions.
Page | 58