https://devzone.nordicsemi.com/f/nordic-q-a/57458/write-value-in-flash-during-compiling-linkingHello, I have exercised the flash driver and that is working fine. I want to save a certain value into a specific address in NVM and I want that part of the .hex file. I am assuming this would be done using __attribute or some other GCC symbol, buten-USTelligent Community 13Thu, 06 Feb 2020 16:01:18 GMThttps://devzone.nordicsemi.com/thread/233117?ContentTypeID=1Thu, 06 Feb 2020 16:01:18 GMT137ad170-7792-4731-bb38-c0d22fbe4515:b44b19d3-bdb2-458b-97b8-b948e71bbbdbtesc<p>Hi,</p> <p>We do something like that in the Secure DFU bootloader, where in nrf_dfu_settings.c you will find:</p> <p><pre class="ui-code" data-mode="c_cpp"> uint8_t m_dfu_settings_buffer[BOOTLOADER_SETTINGS_PAGE_SIZE] __attribute__((section(&quot;.bootloader_settings_page&quot;))) __attribute__((used));</pre></p> <p>What &quot;.bootloader_settings_page&quot; refers to in this piece of code, is the following memory segment from the flash_placement.xml file for the project:</p> <p><pre class="ui-code" data-mode="xml"> &lt;MemorySegment name=&quot;bootloader_settings_page&quot; start=&quot;0x000FF000&quot; size=&quot;0x1000&quot;&gt; &lt;ProgramSection alignment=&quot;4&quot; keep=&quot;Yes&quot; load=&quot;No&quot; name=&quot;.bootloader_settings_page&quot; address_symbol=&quot;__start_bootloader_settings_page&quot; end_symbol=&quot;__stop_bootloader_settings_page&quot; start = &quot;0x000FF000&quot; size=&quot;0x1000&quot; /&gt; &lt;/MemorySegment&gt;</pre></p> <p>I hope that helps!</p> <p>Regards,<br />Terje</p><div style="clear:both;"></div>