Using SEGGER_RTT_printf with esb_low_power_ptx

[xwinderx]

Hello,

I was able to get SEGGER_RTT_WriteString() to work correctly, however SEGGER_RTT_printf keeps giving me this issue when compiling:

._build\nrf52832_xxaa.axf: Error: L6218E: Undefined symbol SEGGER_RTT_printf (referred from main.o). Not enough information to list image symbols. Finished: 1 information, 0 warning and 1 error messages. "._build\nrf52832_xxaa.axf" - 1 Error(s), 0 Warning(s). Target not created. Build Time Elapsed: 00:00:06

I enabled RTT and Logging on the config wizard under sdk_config.h

I am using SDK 12.2.0_f012efa and Kiel_v5

The RTT files are included in the project, but the function does not seem to be found. Any help is appreciated.

Thanks,

Tim

[FormerMember]

For logging over RTT when using the example esb_low_power_ptx in SDK 12.2.0, no extra files should be added to the project. It is sufficient to enable logging and logging over RTT in sdk_config.h.

To print a message using the LOG module, use NRF_LOG_XX("abc");

[xwinderx]

Thanks Kristin, that is what I thought. The project will not compile when RTT logging is enabled and I try to use SEGGER_RTT_printf so I can have formatted prints with data.

[xwinderx]

Turns out I need to have NRF_LOG_USES_RTT=1 defined for the project. (See image)

I had tried defining it earlier in sdk_config.h but I guess the scope does not carry over to the SEGGER_RTT_printf.c file. After I added the define to the pre-processor defines it compiled correctly.