About creating a custom bootloaderhttps://devzone.nordicsemi.com/f/nordic-q-a/110753/about-creating-a-custom-bootloaderAs requested by a customer, I am trying to create a custom bootloader that branches into three applications depending on data from I2C. I am using nRF Connect SDK V2.5.0 I thought about creating it based on &quot;nRF Secure Immutable Bootloader&quot; from \ncsen-USTelligent Community 13Thu, 02 May 2024 14:16:22 GMTRE: About creating a custom bootloaderhttps://devzone.nordicsemi.com/thread/481594?ContentTypeID=1Thu, 02 May 2024 14:16:22 GMT137ad170-7792-4731-bb38-c0d22fbe4515:be307f66-18ec-4220-b51b-28df496705d2kullin<p>Thank you for your reply.</p> <p>I can now link it properly and run it, but<br />I couldn&#39;t get it to run at the right time.</p> <p>Is there any possible cause?</p><div style="clear:both;"></div>RE: About creating a custom bootloaderhttps://devzone.nordicsemi.com/thread/481440?ContentTypeID=1Thu, 02 May 2024 06:52:55 GMT137ad170-7792-4731-bb38-c0d22fbe4515:2dd16305-4281-49b6-aed9-0abfff44e0adKenneth<p>Hello,</p> <p>To reduce size of the bootloader the multithreading is disabled, as described here:<br /><a href="https://developer.nordicsemi.com/nRF_Connect_SDK/doc/latest/zephyr/kernel/services/threads/nothread.html">https://developer.nordicsemi.com/nRF_Connect_SDK/doc/latest/zephyr/kernel/services/threads/nothread.html</a>&nbsp;</p> <p>You can find&nbsp;<a href="https://developer.nordicsemi.com/nRF_Connect_SDK/doc/latest/kconfig/index.html#CONFIG_MULTITHREADING">https://developer.nordicsemi.com/nRF_Connect_SDK/doc/latest/kconfig/index.html#CONFIG_MULTITHREADING</a>&nbsp;is set to n in prj.conf.</p> <p>Kenneth</p><div style="clear:both;"></div>