Hi NV people
i have question about our carrier board rtc.
it’s my test step as below
1. With rtc battery
A. Boot up the system
B. Use manual mode to modify the date
C. Power off the device
D. Plug off the rtc battery
E. Plug on the rtc battery
F. Boot up the system
G. sudo hwclock –r
the result is “Sat 01 Jan 2000 01:00:35 AM UTC”
2. Without rtc battery
A. Boot up the system
B. Use manual mode to modify the date
C. Power off the device
D. Boot up the device
E. sudo hwclock –r
the result will keep value after modify
3. with or without rtc battery
A. Boot up the system
B. Use auto mode to set the date
C. Power off the device
D. Boot up the device
E. sudo hwclock –r
the result will keep value after modify
Q1:
this date “Sat 01 Jan 2000 01:00:35 AM UTC” is RTC factory reset value
or tegra will set this date when removed the battery ??
Q2:
Did the device have battery or not , the new date information will be keep in auto mode ?