https://devzone.nordicsemi.com/f/nordic-q-a/123928/nrf54l15-dk---problems-configuring-loggingDear Nordic Team, I am trying to configure logging through J-LINK RTT for my firmware. My prj.conf contains the following: CONFIG_PRINTK = y CONFIG_CONSOLE = y CONFIG_LOG = y CONFIG_LOG_BACKEND_RTT = y CONFIG_LOG_DEFAULT_LEVELen-USTelligent Community 13Thu, 28 Aug 2025 11:24:48 GMThttps://devzone.nordicsemi.com/thread/547068?ContentTypeID=1Thu, 28 Aug 2025 11:24:48 GMT137ad170-7792-4731-bb38-c0d22fbe4515:e6111110-573a-4e75-b7f5-58b6c77047eeAlex P<p>Thanks a lot, it worked! Looks like&nbsp;CONFIG_USE_SEGGER_RTT=y was important one.</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/546843?ContentTypeID=1Wed, 27 Aug 2025 07:37:39 GMT137ad170-7792-4731-bb38-c0d22fbe4515:685d41e4-e519-4f98-b653-10dacd4603a1runsiv<p>Hi Alex</p> <p>I did a quick test with the following Kconfig</p> <p><pre class="ui-code" data-mode="text">CONFIG_LOG_BACKEND_RTT=y CONFIG_USE_SEGGER_RTT=y CONFIG_LOG=y CONFIG_RTT_CONSOLE=y CONFIG_LOG_BACKEND_UART=n CONFIG_CONSOLE=y CONFIG_UART_CONSOLE=n</pre></p> <p><img style="max-height:240px;max-width:320px;" src="https://devzone.nordicsemi.com/resized-image/__size/640x480/__key/communityserver-discussions-components-files/4/pastedimage1756280228923v4.png" alt=" " /></p> <p>Which worked as you can see, did you test with a DK or custom board?</p> <p>Regards</p> <p>Runar</p><div style="clear:both;"></div>