https://devzone.nordicsemi.com/f/nordic-q-a/80623/nrf52840-chips-plus-framHi There, If I want to make nfr52840 chips connect to FRAM memory, does it work? Best, Gaoshengen-USTelligent Community 13Thu, 14 Oct 2021 12:42:25 GMThttps://devzone.nordicsemi.com/thread/334151?ContentTypeID=1Thu, 14 Oct 2021 12:42:25 GMT137ad170-7792-4731-bb38-c0d22fbe4515:be6b27fe-2669-471e-a70c-35cc65db3587ketiljo<p>Depends what you mean by backup the memory. You can save something to external memory and read it back later. But a complete &quot;backup&quot; of all RAM and register content can&#39;t be done.</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/334114?ContentTypeID=1Thu, 14 Oct 2021 11:26:20 GMT137ad170-7792-4731-bb38-c0d22fbe4515:d3ebf723-93e4-4565-8c96-ab4d05090526lgs<p>Do you mean it is impossible to back up the memory onto the FRAM, cannot restore the memory from the FRAM either?</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/334109?ContentTypeID=1Thu, 14 Oct 2021 11:19:45 GMT137ad170-7792-4731-bb38-c0d22fbe4515:6346184a-81ad-4558-bcff-66b77080c280ketiljo<p>That should be ok I guess. But there&#39;s no drivers fur such memory in the SDK so you must implement this yourselves. Not possible to map it to the internal memory either.</p><div style="clear:both;"></div>