NRF_LOG not working with SDK12.3.0

[good_night]

I can't get NRF_LOG working with SDK12.3.0. Using the same main.c and sdk_config.h from SDK12.2 - here NRF_LOG is working well - I get no messages in J-Link RTT Viewer with SDK12.3.0. ANY hints to fix it?

settings in sdk_config.h:

#define NRF_LOG_ENABLED 1
#define NRF_LOG_BACKEND_SERIAL_USES_UART 0
#define NRF_LOG_BACKEND_SERIAL_USES_RTT 1

settings in main.c:

#define DEBUG // doesn't matter if present or not
...
#define NRF_LOG_MODULE_NAME "APP"
#include "nrf_log.h"
#include "nrf_log_ctrl.h"
#include "SEGGER_RTT.h"

setting in Makefile:

CFLAGS += -DNRF_LOG_USES_RTT=1

Hence I am a newbie with nRF51 under Eclipse any hints are welcome!

[Daniel Wang]

Try setting #define NRF_LOG_DEFERRED 0in sdk_config.h. I assume you already are calling

err_code = NRF_LOG_INIT(NULL);

and that you are actaully trying to print something with e.g. NRF_LOG_INFO

NRF_LOG_INFO("\r\nUART Start!\r\n");

[good_night]

You have got it, Daniel! Thank you - it solved showing the missing log information.

But, yet a miracle why SDK12.2.0 shows the message with

#define NRF_LOG_DEFERRED 1