Using SEGGER RTT on an external nRF chip

RE: Using SEGGER RTT on an external nRF chip

Stefan Birnir Sverrisson — Fri, 28 Aug 2015 17:54:15 GMT

@andrey Thank you for your feedback. Can you share what was wrong in your code that prevented RTT from working?

RE: Using SEGGER RTT on an external nRF chip

pltv — Fri, 28 Aug 2015 03:00:54 GMT

I faced similar problems for sometime. Sometimes external boards have lesser memory than the DK. RTT tends to have a bigger memory foot print especially with the default options. You might want to re configure the RTT configurations and check if all is fine. Conceptually this should work and i have made this work with our external board. Just ensure that there is a live connection maintained with the external board

RE: Using SEGGER RTT on an external nRF chip

andrey — Thu, 27 Aug 2015 18:26:28 GMT

There was a problem in code preventing RTT from working.

RE: Using SEGGER RTT on an external nRF chip

andrey — Thu, 27 Aug 2015 17:23:14 GMT

I've tried the same thing with DK <-> nRF Beacon and RTT isn't working either. Only SWDIO, SWDCLK, VCC and GND are connected on Debug Out, right?

RE: Using SEGGER RTT on an external nRF chip

Stefan Birnir Sverrisson — Thu, 27 Aug 2015 15:19:24 GMT

Hi andrey

I tested RTT on my two PCA10028 boards and it seems to be working fine. I connect Debug out port of PCA10028 board 1 to a Debug in port of PCA10028 board 2. I can see printed RTT data in the RTT Viewer from the PCA10028 2 board. Dit you have RTT working previously with another configuration?