How to fix UART behavior in segger?

[puff]

Still playing with my app. Since RTT (or whatever it was, when printf was printing info to segger debug console) was ruining the debug process, I just switched off RTT and disabled uart module. But now I need some way to print out some debug info. So, I connected an rx pin of my usb-serial interface to pin9 of 51822. However, printf still prints out to segger debug console, not to my usb-uart, and probably still causing crashes when run not in debug mode. Is there a way to check what could be wrong?

[Hung Bui]

It's just the configuration on Segger embedded Studio, it wouldn't affect the code of the application. If you want to disable RTT log you need to edit the sdk_config.h.

There is a GUI tool to edit sdk_config, please have a look at this tutorial. NRF_LOG_BACKEND_SERIAL_USES_RTT should be disabled and NRF_LOG_BACKEND_SERIAL_USES_UART should be enabled if you want to send the log via UART.

To turn off LOGing you change NRF_LOG_ENABLED to 0.