https://devzone.nordicsemi.com/f/nordic-q-a/115661/nrf-connect-sdk-swd-programmingHello, I&#39;d like to develop a BLE OTA Bootloader using the NRF Connect SDK, but I need to program my NRF52840 with a Serial Wire debugger. What tools do I need? Is there a Hex file I can upload that is output by the NRF Connect SDK? Thanks, Calven-USTelligent Community 13Mon, 21 Oct 2024 13:07:52 GMThttps://devzone.nordicsemi.com/thread/507148?ContentTypeID=1Mon, 21 Oct 2024 13:07:52 GMT137ad170-7792-4731-bb38-c0d22fbe4515:f646362e-c8ae-42c0-aa92-28f614a27fedEinar Thorsrud<p>Hi Calvin,</p> <p>You always get a hex file (or several) as a result of building with the nRF Connect SDK, and whis can be programmed via SWD. These are fundamental concepts, so I recommend you take a look at <a href="https://docs.nordicsemi.com/bundle/ncs-2.7.0/page/nrf/gsg_guides/nrf52_gs.html">Getting started with nRF52 Series</a>&nbsp;and the following steps that show you how to install and use the tools and SDK. You may also be interested in <a href="https://academy.nordicsemi.com/courses/nrf-connect-sdk-fundamentals/">nRF Connect SDK Fundamentals</a>.</p><div style="clear:both;"></div>