NRF_LOG MACROS to SEGGER_RTT?

[MANGO]

Hi, I use PCA10040 v1.1 with Keil MDK 5.20 and SDK 12. I have installed J-Link 5.12f driver.

I usually use the NRF_LOG_ENABLED MACRO to check the UART debug message.

It seems to me that the SEGGER_RTT can be an alternative way to check log messages.

So I was wandering that can the NRF_LOG_INFO MACROS can be changed to SEGGER_RTT_WriteString without searching every MACROS in the application code.

The "find and replace" the NRF_LOG_INFO MACROS was kind of a troublesome.

So, instead of using "find and replace", can the NRF_LOG_INFO MACROS be replaced to SEGGER_RTT?

// Added 2016.09.06

I used the SPI master example by the way.

I used NRF_LOG_ENABLED and NRF_LOG_BACKEND_SERIAL_USES_RTT as a preprocessor. (Don't know whether this is a correct expression.)

Or change the values in the sdk_config.h.

As a result, it works! Thanks, Krzysztof Chruściński and Keton.

-Best Regards, Mango

[Keton]

nrf_log.c allows logging to RTT since it was created (SDK10 i think). In SDK12 just change options in sdk_config.h, in previous versions set NRF_LOG_USES_RTT=1 define and make sure that there are no other NRF_LOG_USES_XXX defines.

[Krzysztof Chruscinski]

Yes, nrf_log supports RTT as one of possible backends. In sdk_config.h you can find an option NRF_LOG_BACKEND_SERIAL_USES_RTT that needs to be enabled (NRF_LOG_BACKEND_SERIAL_USES_UART should be unset then).

[Catalin]

I no longer see a nrf_log.c in SDK12, where do you have that file?

[Catalin]

Is NRF_LOG_INFO (and the other NRF_LOG____ functions) handling OK "printf-like parameters"? Since from what I can see that no longer seems to work somewhere in the macro expansions and the old NRF_LOG_PRINTF that I was using in SDK11 does no longer seem to be present :(

[MANGO]

@Catalin

The nRF5_SDK_12.0.0_12f24da doesn't have the nrf_log.c.

However, it has components/libraries/log/nrf_log.h.

The NRF_LOG_INFO, NRF_LOG_ERROR, NRF_LOG_WARNING, and NRF_LOG_DEBUG is defined in that header file.