[Python]R eading from SEGGER RTT print via Jlink Compact instead of a wired UART connection

[tmeeusen]

Hi,

We would like to access the print outputs of the SEGGER_RTT_WriteString() function via a JLINK compact debugger using Python.
The latter is wired only via SWDIO, SWDCLK, VMCU and GND of the nRF52840 IC. 
Is there a clever way to do this in order to not use a wired UART connection.

example:

Hereby we would replace

printf("\r\nUART started.\r\n");

(which can be read in python by using pyserial readlines())

with

SEGGER_RTT_WriteString(0,"\r\n RTT started.\r\n");

and read this string in Python. 

Thanks in advance,

Kind regards,
Tom

[awneil]

This is a Segger thing - nothing to do with Nordic - you need to ask Segger:

https://forum.segger.com/index.php/Board/3-J-Link-Flasher-related

RTT documentation:

www.segger.com/.../