Kontron KTAM3874-pITX - Manual (Page 74)

KTD-S0057-I Page 70 Linux® Programming Examples (DebianTM)
KTAM3874/pITX Software Guide
for (i = 0; i < WDT_TRIG_TIME; i++)
{
if (write (fd, "\0", 1) != 1) /* Trigger watchdog */
break;
sleep (WDT_DELAY);
}
/* Should be reboot after 40 seconds from program start */
if (i >= WDT_TRIG_TIME)
sleep (wdt_time + WDT_MARKUP); /* Cause a timeout */
else
printf ("Trigger process fails !\n\n");
/* Should never be reached */
write (fd, "V", 1); /* Magic stop */
close (fd); /* Deactivates watchdog */
return 0;
}