wdt_ctr_load
wdt_ctr_load(0, 8948); /* Count at 100Hz */
wdt_ctr_load(1, wd_heartbeat); /* Heartbeat */
wdt_ctr_load(2, 65535); /* Length of reset pulse */
wdt_ctr_load(2, 0); /* 0 length reset pulses now */
wdt_ctr_load(1, wd_heartbeat); /* Heartbeat */