esp-idf/components/log/Kconfig.format

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menu "Format"
config LOG_COLORS
bool "Color"
default y
help
Enable ANSI terminal color codes.
In order to view these, your terminal program must support ANSI color codes.
choice LOG_TIMESTAMP_SOURCE
prompt "Timestamp"
default LOG_TIMESTAMP_SOURCE_RTOS
help
Choose what sort of timestamp is displayed in the log output:
- "None" - The log will only contain the actual log messages themselves
without any time-related information. Avoiding timestamps can help conserve
processing power and memory. It might useful when you
perform log analysis or debugging, sometimes it's more straightforward
to work with logs that lack timestamps, especially if the time of occurrence
is not critical for understanding the issues.
- "Milliseconds since boot" is calculated from the RTOS tick count multiplied
by the tick period. This time will reset after a software reboot.
e.g. (90000)
- "System time (HH:MM:SS.sss)" is taken from POSIX time functions which use the chip's
RTC and high resolution timers to maintain an accurate time. The system time is
initialized to 0 on startup, it can be set with an SNTP sync, or with
POSIX time functions. This time will not reset after a software reboot.
e.g. (00:01:30.000)
- "System time (YY-MM-DD HH:MM:SS.sss)" it is the same as the above,
but also prints the date as well.
- NOTE: Currently this will not get used in logging from binary blobs
(i.e WiFi & Bluetooth libraries), these will always print
milliseconds since boot.
config LOG_TIMESTAMP_SOURCE_NONE
bool "None"
depends on NO_SYMBOL # hide it now, turn it on final MR
config LOG_TIMESTAMP_SOURCE_RTOS
bool "Milliseconds Since Boot"
config LOG_TIMESTAMP_SOURCE_SYSTEM
bool "System Time (HH:MM:SS.sss)"
config LOG_TIMESTAMP_SOURCE_SYSTEM_FULL
bool "System Time (YY-MM-DD HH:MM:SS.sss)"
depends on NO_SYMBOL # hide it now, turn it on final MR
endchoice # LOG_TIMESTAMP_SOURCE
endmenu