https://devzone.nordicsemi.com/f/nordic-q-a/95856/reading-application-area-of-flashI am trying to implement BLE DFU protocol on my nrf52840 MCU to FOTA the nrf52 devices nearby. I was able to do firmware update by reading the firmware hex stored in RAM and updating the nearby devices by doing device-to-device BLE DFU. I now want toen-USTelligent Community 13Thu, 19 Jan 2023 20:41:42 GMThttps://devzone.nordicsemi.com/thread/405750?ContentTypeID=1Thu, 19 Jan 2023 20:41:42 GMT137ad170-7792-4731-bb38-c0d22fbe4515:8d60780e-5720-4ad3-8fba-3b20a7dd3588ovrebekk<p>Hi</p> <p>You can read the flash directly, simply by&nbsp;creating a const pointer with a value in the flash address region (0x0-0x100000) and dereferencing the pointer.&nbsp;</p> <p>Small example:</p> <p><pre class="ui-code" data-mode="c_cpp">// Copy 16 words from flash into RAM, starting at flash address 0x10000 const uint32_t *flash_ptr = 0x10000; uint32_t data_from_flash[16]; for(int i = 0; i &lt; 16; i++) { data_from_flash[i] = *flash_ptr++; }</pre></p> <p>Best regards<br />Torbjørn</p><div style="clear:both;"></div>