https://devzone.nordicsemi.com/f/nordic-q-a/26927/retain-some-peripherals-status-after-a-watchdog-reset-over-nrf52I write an application on nRF52 where the Watchdog Timeout event should automatically clear a GPIO and start a PWM signal on another GPIO using PPI. The issue is that Watchdog timer will always reset the chip and hence reset the peripherals includingen-USTelligent Community 13Wed, 15 Nov 2017 18:32:05 GMThttps://devzone.nordicsemi.com/thread/105797?ContentTypeID=1Wed, 15 Nov 2017 18:32:05 GMT137ad170-7792-4731-bb38-c0d22fbe4515:8dc3d9db-8e04-4fc9-ace8-3452d07790ebAmbystomaLabs<p>There are a lot of ways.<br /> You can write periodically to flash.<br /> You can write to the UICR registers. You can also use the GPREGRET registers.</p> <p>If you want a super simple approach, the ram is not initialized on boot. So people have also just left data in static variables that they don&#39;t init (ie, set to zero). Or, they selectively init when they know they didn&#39;t just come out of a WDT reset. As long as you don&#39;t power down or brownout your static variable will be there.</p> <p>With all these methods you will still need to write back the state of the various peripherals you mentioned after the reset event. But it will give you a way to recover to roughly the last state of the device.</p> <p>Though I should point out that people will ask why you are expecting so many WDT events?</p><div style="clear:both;"></div>