SEGGER_RTT_CONFIG_DEFAULT_MODE blocking app

[Chris]

If SEGGER_RTT_CONFIG_DEFAULT_MODE is "BLOCK", the program won't start without RTT attached - at least for me... is there a possible solution? I mean, technically it makes sense, because the buffer is never flushed without RTT Logger attached, but as we require the blocking logging in the current stage of the project for debugging purposes, we would have to maintain two different firmware versions to use with and without RTT logger attached

[Thomas]

we had similar issues... (we are on armGCC and makefile, your mileage may vary) a simple way to get to the behavior you want this is to add a makefile command line option. something like:

make flash RTT=NO

adding the RTT option necessitate just 2 changes in the makefile, at the top of it add this:

ifdef RTT
ifeq ($(RTT), YES)
            LOGGING_MESSAGES := -DNRF_LOG_ENABLED=1 #add messages
else
            LOGGING_MESSAGES := -DNRF_LOG_ENABLED=0 #remove messages
endif
endif

and later on in the makefile add to the existing CFLAGS

FLAGS += $(LOGGING_MESSAGES)

You can do fancier things but I'm just showing a simple example. You will have to clean when you switch the options but it works. Hope this helps