Recently I am working on the SWO interface of SAM4S Xplained board (Not Xplained Pro). I am running FreeRTOS on this board and trying to work with the integrated Trace tool available in Atmel Studio 6.2. However, I am unable to start the trace recorder after clock initialization because an error message pops up indicating that the connected emulator does not support SWO. I have double checked it on the web documents available for SAM4S Xplained at this link
It clearly indicates that the J-Link OB supports JTAG/SWD + SWO interface. Does anyone here have any experience with this. If so please let me know.