https://devzone.nordicsemi.com/f/nordic-q-a/60111/custom-board-with-debug-programming-capabilitiesHi, I&#39;m designing a custom board and want to have debug/programming capabilities on my board. As I understand I can connect DebugOut connector of DK to DebugIn connector on my board. Section 5.9 of DK User Guide and section 9 of Product Specificationen-USTelligent Community 13Wed, 15 Apr 2020 13:46:44 GMThttps://devzone.nordicsemi.com/thread/244758?ContentTypeID=1Wed, 15 Apr 2020 13:46:44 GMT137ad170-7792-4731-bb38-c0d22fbe4515:7eb8e918-15d4-4811-9e34-c719c3e9ae41_dev_<p>Thanks a lot, it all makes sense now.</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/244742?ContentTypeID=1Wed, 15 Apr 2020 13:08:56 GMT137ad170-7792-4731-bb38-c0d22fbe4515:e0910f4d-4e9f-47ba-b0da-a37e47311953Vidar Berg<p>TRACE/(ie <a href="https://infocenter.nordicsemi.com/topic/ps_nrf52840/dif.html#trace">ITM/ETM trace</a>) is an advanced debugging feature that allows you to collect more data from the chip. However, it&#39;s not that commonly used in my experience. For regular debugging and programming, you only need the SWD lines. And the drawback with adding trace support is that you have to route the extra pins, and to utilize it you would also need a J-link with trace support (not supported with the on-board Jlink lite on the DKs)</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/244282?ContentTypeID=1Mon, 13 Apr 2020 12:50:53 GMT137ad170-7792-4731-bb38-c0d22fbe4515:940a7a35-1d29-4234-b211-fd1567d159f5_dev_<p>#1 is solved</p> <p>#2 is solved</p> <p>#4 is solved</p> <p></p> <p>#3 Still trying to understand more about TRACE. Do I really need it for debugging?</p><div style="clear:both;"></div>