https://devzone.nordicsemi.com/f/nordic-q-a/21004/rtt-viewer-not-showing-any-thingits my first program at RTT .I have open the ble_app_uart project from examples of sdk .and fallow the tutorial devzone.nordicsemi.com/.../ . program compiled and load successfully on device but RTT VIEWER doesnot show my string ?? can you help to resolveen-USTelligent Community 13Wed, 05 Apr 2017 08:31:26 GMThttps://devzone.nordicsemi.com/thread/82080?ContentTypeID=1Wed, 05 Apr 2017 08:31:26 GMT137ad170-7792-4731-bb38-c0d22fbe4515:66164f3a-20e1-4e86-bd81-f3a7e77d334cWaqar Ahmed<p>i have enable it .but nothing is shown in j link RTT VIEWER.NO NRF SERIAL LOG IS SHOWN ON J LINK RTT VIEWER</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/82079?ContentTypeID=1Fri, 31 Mar 2017 11:56:52 GMT137ad170-7792-4731-bb38-c0d22fbe4515:14e5e0c5-d0f3-4d2f-8514-395f9a3316a7FormerMember<p>That tutorial is somewhat outdated, because the NRF_LOG module in the SDK supports RTT since SDK 12.0.0. To enable RTT logging in SDK 12.0.0 or later, &quot;check&quot; the NRF_LOG_BACKEND_SERIAL_USES_RTT option in sdk_config.h in the configuration wizard.</p> <p>The RTT tutorial will be updated telling that it is only relevant for SDK 11 or older.</p><div style="clear:both;"></div>