Hello Ahmed,
As Matthias has said, the Relax Kit just brings the raw TTL Rx and Tx signals out of the processor and so you need some sort of adaptor as described. The newer XMC4000 hexagon kit and the boards for the XMC1000 family have a second channel bought to the debug interface so this is the single wire debug (SWD) channel AND a serial (RS232) interface. So, by just plugging in the debug connector, you power the dev board, have a debug connection AND a virtual serial port. Unfortunately this is not possible on the Relax Kit.
Best regards,
Dave
As Matthias has said, the Relax Kit just brings the raw TTL Rx and Tx signals out of the processor and so you need some sort of adaptor as described. The newer XMC4000 hexagon kit and the boards for the XMC1000 family have a second channel bought to the debug interface so this is the single wire debug (SWD) channel AND a serial (RS232) interface. So, by just plugging in the debug connector, you power the dev board, have a debug connection AND a virtual serial port. Unfortunately this is not possible on the Relax Kit.
Best regards,
Dave