wdt_reset_recovery_demo Directory Reference

Directory dependency graph for wdt_reset_recovery_demo:

Directories
	src

Detailed Description

The WWDT (WDT0) half of the watchdog reset story, companion to watchdog_demo, which covers the IWDT.

First boot reads a power-on cause, arms the WWDT with reset-on-expiry, refreshes it for a couple of seconds, then stops. The WWDT underflows and trips an internal reset. The second boot reads k_ra8_reset_cause_wdt0 back out of RSTSR1.WDTRF, prints that it was reset by the watchdog, and parks.

The gate scrapes for the second boot's banner, so a pass requires both halves: the reset has to fire, and the next boot has to decode the cause flag correctly. That also means the run takes as long as the WWDT underflow countdown, which is tens of seconds – the timeout in hil.conf is sized for it, not padded.