This post is older than 2 years and might not be relevant anymore
More Info: Consider searching for newer posts

NRF52 Secure UART DFU SDK 13.0 + RTT

Greetings,

Continuing on from a previous question, I'm now able to update the firmware via the secure UART DFU.

One thing I've noticed is that if I enable the RTT nRF_Log messages in the bootloader, then the RTT messages that are being sent out in my application do not appear on the J-Link RTT Viewer. Meanwhile if I disable the nRF_Log feature in the bootloader (and do a full chip erase, program the soft device, program the updated bootloader), then update the application I now receive the RTT messages from the application.

Is there any trick to receiving RTT messages from both the bootloader and the application?

Related