蜂鸣器

ON	OFF
echo 1 > /sys/class/leds/beeper_led/brightness	echo 0 > /sys/class/leds/beeper_led/brightness

LED

	ON	OFF
电源	echo 1 > /sys/class/leds/ext_pwr_led1/brightness	echo 0 > /sys/class/leds/ext_pwr_led1/brightness
硬盘	echo 1 > /sys/class/leds/ext_sata_led2/brightness	echo 0 > /sys/class/leds/ext_sata_led2/brightness
网络	echo 1 > /sys/class/leds/ext_net_led3/brightness	echo 0 > /sys/class/leds/ext_net_led3/brightness

Power

主模组给副模组提供供电，开机操作

	ON	OFF
供电	echo 1 > /sys/class/leds/res_core_en/brightness	echo 0 > /sys/class/leds/res_core_en/brightness
开机	echo 1 > /sys/class/leds/res_power/brightness	echo 0 > /sys/class/leds/res_power/brightness

主板上电模式

• 主板自动上电，需要把拨码开关 AUTO_PWR 拨到 ON

• 主板按POWER键上电，需要把拨码开关 AUTO_PWR 拨到 1

RK182X 电压选择

需要把拨码开关 RES_VOL_SEL 拨到 ON

USB

host 模式时，需要把拨码开关 USB SEL 拨到 ON