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  3. How to debug led
  4. 2. How to light on/off Led

2. How to light on/off Led

On the 96 board, we created six nodes in the /sys/class/misc/96board_leds/ path to correspond to six led. Echo on/off for the node is equivalent to the light on/off of the LED, as described below.

2.1 light on/off led0

Led0 corresponds to the /sys/class/misc/96board_leds/96_led0 node.

In the path : /sys/class/misc/96board_leds/

We can use <cat 96_led0> command to check the status of led0 , use <echo on > 96_led0> command to light on led0,and use <echo off > 96_led0> command to light off led0.

2.2 light on/off led1

Led1 corresponds to the /sys/class/misc/96board_leds/96_led1 node.

In the path : /sys/class/misc/96board_leds/

We can use <cat 96_led1> command to check the status of led1 , use <echo on > 96_led1> command to light on led1,and use <echo off > 96_led1> command to light off led1.

2.3 light on/off led2

Led2 corresponds to the /sys/class/misc/96board_leds/96_led2 node.

In the path : /sys/class/misc/96board_leds/

We can use <cat 96_led2> command to check the status of led2 , use <echo on > 96_led2> command to light on led2,and use <echo off > 96_led2> command to light off led2.

2.4 light on/off led3

Led3 corresponds to the /sys/class/misc/96board_leds/96_led3 node.

In the path : /sys/class/misc/96board_leds/

We can use <cat 96_led3> command to check the status of led3 , use <echo on > 96_led3> command to light on led3,and use <echo off > 96_led3> command to light off led3.

2.5 light on/off led4

Led4 corresponds to the /sys/class/misc/96board_leds/96_led4 node.

In the path : /sys/class/misc/96board_leds/

We can use <cat 96_led4> command to check the status of led4 , use <echo on > 96_led4> command to light on led4,and use <echo off > 96_led4> command to light off led4.

2.6 light on/off led5

Led5 corresponds to the /sys/class/misc/96board_leds/96_led5 node.

In the path : /sys/class/misc/96board_leds/

We can use <cat 96_led5> command to check the status of led5 , use <echo on > 96_led5> command to light on led5,and use <echo off > 96_led5> command to light off led5.

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