How to develop a dual bank application based on SDK15 with 52840?https://devzone.nordicsemi.com/f/nordic-q-a/74588/how-to-develop-a-dual-bank-application-based-on-sdk15-with-52840Hi guys： Iam new to 52840, I want to develop a dual bank app, Can you give me some advice? Thank you.en-USTelligent Community 13Fri, 30 Apr 2021 10:24:07 GMTRE: How to develop a dual bank application based on SDK15 with 52840?https://devzone.nordicsemi.com/thread/307636?ContentTypeID=1Fri, 30 Apr 2021 10:24:07 GMT137ad170-7792-4731-bb38-c0d22fbe4515:789cd74a-40ed-43c6-a6ec-c3af5b6bea32Marjeris Romero<p>Hi,</p> <p>Are you thinking about dual-bank DFU update application?</p> <p>I recomming taking a look at this blogpost on <a href="https://devzone.nordicsemi.com/nordic/short-range-guides/b/software-development-kit/posts/getting-started-with-nordics-secure-dfu-bootloader">Getting started with Nordic&#39;s Secure DFU bootloader, a step by step guide</a>.<br /><br />And also take a look at the information about dual-bank and single-bank updates: <a href="https://infocenter.nordicsemi.com/topic/com.nordic.infocenter.sdk5.v15.3.0/lib_bootloader_dfu_banks.html">https://infocenter.nordicsemi.com/topic/com.nordic.infocenter.sdk5.v15.3.0/lib_bootloader_dfu_banks.html</a></p> <p>&quot;If <a href="https://infocenter.nordicsemi.com/topic/com.nordic.infocenter.sdk5.v15.3.0/group__nrf__dfu__validation__config.html#ga8006bfecefff753ae06bbe558451a902">NRF_DFU_SINGLE_BANK_APP_UPDATES</a> is set, then single-bank update is preferred. Otherwise, all firmware updates are performed as dual-bank updates.&quot;</p> <p>Best regards,</p> <p>Marjeris</p><div style="clear:both;"></div>