https://devzone.nordicsemi.com/f/nordic-q-a/12123/retain-a-ram-value-after-a-watchdog-timeoutHi, I&#39;d like to retain a value in RAM after any type of reset, including a watchdog timeout, so that I can read it back in the bootloader immediately after a reset. Unfortunately, I understand that GPREGRET is initialized on a watchdog reset, soen-USTelligent Community 13Fri, 26 Feb 2016 13:29:37 GMThttps://devzone.nordicsemi.com/thread/45865?ContentTypeID=1Fri, 26 Feb 2016 13:29:37 GMT137ad170-7792-4731-bb38-c0d22fbe4515:cb6a8979-2bf7-4c21-b875-005a2bcf157aVidar Berg<p>Unfortunately, the reset behavior table found in section 12.1.19 of the nRF51 RM states that RAM content <strong>may</strong> be corrupted for all reset sources but CPU lockup and softreset. I think storing the data to local flash might be the easiest solution in this case.</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/45864?ContentTypeID=1Thu, 25 Feb 2016 07:52:40 GMT137ad170-7792-4731-bb38-c0d22fbe4515:f027c6d3-73c0-4b92-90d1-23da26f2f222Martijn<p>I am not completely sure, but I think RAM can be retained during a Watchdog/Soft reset. If you set the value at a specific address that is not overridden at start then you should be able to retrieve it.</p> <p>See RAMON register. Maybe <a href="https://devzone.nordicsemi.com/question/836/ram-banks-ram-retention/?answer=840#post-id-840">this</a> thread can help</p><div style="clear:both;"></div>