https://devzone.nordicsemi.com/f/nordic-q-a/68722/watchdog-callback-save-reason-of-timeoutHello all, I use a nrf9160. In my program, I would like to use a watchdog to be sur than my application is running. 1. I would like to save some data in memory without clean it on restart (reaseon of crashed, differents states), first I would likeen-USTelligent Community 13Wed, 25 Nov 2020 15:17:42 GMThttps://devzone.nordicsemi.com/thread/281878?ContentTypeID=1Wed, 25 Nov 2020 15:17:42 GMT137ad170-7792-4731-bb38-c0d22fbe4515:60e7f2fa-d094-49ea-860f-eb5a41968cb7Charlie<p>Hi Oggier,</p> <p>For your questions:</p> <p><span>1. Zephyr has exactly what you need which is called&nbsp;</span><a href="https://developer.nordicsemi.com/nRF_Connect_SDK/doc/latest/zephyr/reference/storage/nvs/nvs.html">Non-Volatile Storage (NVS)</a><span>. The nvs sample is located in ncs\zephyr\samples\subsys\nvs.</span></p> <p><span>2. I tested the watchdog sample in&nbsp;ncs\zephyr\samples\drivers\watchdog. According to <a href="https://github.com/zephyrproject-rtos/zephyr/issues/12369">a bug report related to this issue,</a>&nbsp;I need to use &quot;</span><span>wdt_setup</span><span>(</span><span>wdt</span><span>,</span><span>&nbsp;</span><span>WDT_OPT_PAUSE_HALTED_BY_DBG</span><span>);</span>&quot; in order to set breakpoint in the wdt_callback function. Printk function will not give any printout since the system reset time is very short.</p><div style="clear:both;"></div>