https://devzone.nordicsemi.com/f/nordic-q-a/21942/free-rtos-with-rtt-viewExample project: blinky_FreeRTOS_pca10028.uvprojx I include SEGGER_RTT.h file. After execute vTaskStartScheduler() function. SEGGER_RTT_printf(0, &quot;Hello World from SEGGER! %d\r\n&quot;, i); &lt;== It not working. But before execute vTaskStartScheduleren-USTelligent Community 13Tue, 30 May 2017 08:15:24 GMThttps://devzone.nordicsemi.com/thread/86121?ContentTypeID=1Tue, 30 May 2017 08:15:24 GMT137ad170-7792-4731-bb38-c0d22fbe4515:316521b0-dba9-4c4c-8513-a07c6733ab44Susheel Nuguru<p>Sorry for late reply, did you get this to work?</p><div style="clear:both;"></div>