wdt_set_heartbeat
if (wdt_set_heartbeat(new_timeout))
if (wdt_set_heartbeat(timeout)) {
wdt_set_heartbeat(WATCHDOG_TIMEOUT);
if (wdt_set_heartbeat(new_heartbeat))
if (wdt_set_heartbeat(heartbeat)) {
wdt_set_heartbeat(WD_TIMO);