I made eclipse environment and get rtt log with
so I start "Debug" in eclipse, and start "J-Link RTT Client"
this way, I need to set eclipse environment.
Is there any other way to see rtt log from "Device"?
I found answer.
it's just matter of optimization parameter issue in Makefile
I just change O1 to O0, then it works. :-)
CFLAGS = -DNRF_LOG_USES_RTT=1 -DNRF_LOG_USES_COLORS=0 -DDEBUGGING_MODE=1 -Wall -Werror -O0 -g3