https://devzone.nordicsemi.com/f/nordic-q-a/40290/fds-and-openthread-data-segment-overlappingHello, I am using nrf52840 with OpenThread stack. While I am using FDS to store application data, it seems the OpenThread dataset is written in the same area. Thus, the application running for a period of time, the FDS initialization may failed withen-USTelligent Community 13Thu, 08 Nov 2018 14:27:26 GMThttps://devzone.nordicsemi.com/thread/156512?ContentTypeID=1Thu, 08 Nov 2018 14:27:26 GMT137ad170-7792-4731-bb38-c0d22fbe4515:15496f57-d8ef-4893-9e7e-f708c778b537by1e11<p>That&#39;s perfect, thanks a lot</p> <p></p> <p>Best wishes</p> <p>Bo</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/156511?ContentTypeID=1Thu, 08 Nov 2018 14:25:38 GMT137ad170-7792-4731-bb38-c0d22fbe4515:fb576668-7a68-45cb-86a3-75a2d6b3a5feVidar Berg<p>Hello Bo,</p> <p>Yes, I can confirm that the FDS will reserve the last pages in flash when there&#39;s no bootloader present, which overlaps with the default&nbsp;<span>ot_flash_data placement in this case.&nbsp;The solution is to&nbsp;move the&nbsp;ot_flash_data section as you said.&nbsp;</span><span>Just remember to edit both start symbols in the xml:&nbsp;</span></p> <p style="padding-left:30px;"><span> &lt;MemorySegment name=&quot;ot_flash_data&quot; start=&quot;<strong>0x000fc000</strong>&quot; size=&quot;0x4000&quot;&gt;<br /> &lt;ProgramSection alignment=&quot;4&quot; keep=&quot;Yes&quot; load=&quot;No&quot; name=&quot;.ot_flash_data&quot; address_symbol=&quot;__start_ot_flash_data&quot; end_symbol=&quot;__stop_ot_flash_data&quot; start = &quot;<strong>0x000fc000</strong>&quot; size=&quot;0x4000&quot; /&gt;<br /> &lt;/MemorySegment&gt;</span></p><div style="clear:both;"></div>