<li><p>The second parameter 10 indicates the counting time of the watchdog. If the dog is not fed within this time, the system will restart</p></li>

<li><p>We can feed the dog by pressing any key on the keyboard (except ESC). After feeding the dog, the program will print a line of keep alive to indicate that the dog is fed successfully</p>

<p>orangepi@orangepi:~$ '''sudo watchdog_test 10'''</p>

<p>open success</p>

<p>keep alive</p>

<p>keep alive</p>

<span id="check-the-serial-number-of-rk3588-chip"></span>

== Check the serial number of RK3588 chip ==