Any chance that softdevice can cause watchdog perform improperly ?

[MJ Ma]

Hi Nordic,

I am implement watchdog function in my nRF52840 project base on SDK15.3 ,but I found something I cannot understatnd, please help.

Watchdog reload value is 10000, and I started a 100ms app timer to feed the dog

when I am debuging my code as below steps:

1. If I do not feed the dog, it can go into the watchdog interrupt handler, seems good to go.

2.If I feed the dog, there will be a not watchdog reset happened after 30mins or 1 hour.

3.If I disable the watchdog , no any reset happened.

Please help me find why this reset happening after I enable watchdog.

[Susheel Nuguru]

Please check what are the values in your WDT.Config register.

Watchdog can behave differently in sleep and while in debug mode with these settings. Please set them accordingly to see if this was the issue you see?