ELASTEL EG500 - WDT (Watch Dog Timer); Block Diagram; How It Works

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⑦ sudo wpa_supplicant -i wlan0 -D nl80211 -B -c ~/sx-newah/conf/US/sta_halow_sae.conf
NOTICE:
When ”wpa_state=COMPLETED” is displayed after "sudo wpa_cli -i wlan0 status" is
executed, AP connection is completed.
10. WDT (Watch Dog Timer)
10.1 Block Diagram
The WDT module have three terminals, input, output, and LED indicator.
10.2 How it works
1. System POWER ON.
2. Delay 200ms.
3. Send WDO a negative pulse with 200ms low level to reset the system.
4. Pull up WDO.
5. Delay 120 seconds while the indicator flashing (typical 1hz).
6. Turn off the indicator.
7. Wait for 8 pulses at WDI to active WDT module and light the LED.
8. Get Into WDT-FEED mode, at least one pulse should be feed into WDI in at least every 2
seconds, if not, the WDT module should output a negative pulse to reset the system.
9. Go to 2.