User manual

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3. Configuring for VGA;
Execute the following instructions in u-boot mode to configure for VGA
display mode;
OMAP3 SBC8140 # setenv defaultdisplay lcd
OMAP3 SBC8140 # setenv dispmode VGA
OMAP3 SBC8140 # saveenv
4. Configuring for LVDS;
Execute the following instructions in u-boot mode to configure for LVDS
display mode;
OMAP3 SBC8140 # setenv defaultdisplay lcd
OMAP3 SBC8140 # setenv dispmode LVDS
OMAP3 SBC8140 # saveenv
3.8 Tests and Demonstrations
This section will carry out many tests on the SBC8140s devices and also
demonstrations of the Android and DVSDK systems.
Note:
 The following tests are all implemented by entering instructions in a
HyperTerminal window.
3.8.1 Testing LEDs
1. Execute the following instructions to test LED0;
root@SBC8140:# echo 1 > /sys/class/leds/led0/brightness
root@SBC8140:# echo 0 > /sys/class/leds/led0/brightness
2. Execute the following instructions to test LED1;
root@SBC8140:# echo 1 > /sys/class/leds/led1/brightness
root@SBC8140:# echo 0 > /sys/class/leds/led1/brightness
3. Execute the following instructions to test LED2;
root@SBC8140:# echo 1 > /sys/class/leds/led2/brightness