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→Hardware watchdog test
<li><p>The second parameter 10 represents 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 "keep alive" to indicate that the dog feeding is successful.</p>
{| class="wikitable" style="width:800px;"
|-
|
<p>orangepi@orangepi:~$ '''sudo watchdog_test 10'''</p>
<p>open success</p>
<p>keep alive</p>
<p>keep alive</p>
<p>keep alive</p>|}</li></ol>
<span id="check-the-chipid-of-h618-chip"></span>
== Check the chipid of H618 chip ==
