[BeagleBone Black] About system hardware clock


#1

Hello,

After reboot,hwclock always reset to 2000-01-01 00:00:00 as below log.
[ 0.989841] omap_rtc 44e3e000.rtc: setting system clock to 2000-01-01 00:00:00 UTC (946684800)
I am wondering where to fetch the 2000-01-01 00:00:00? It is hardcode or from some config. The /etc/timestamp is not 2000-01-01 00:00:00.

Thanks.


#2

That’s just the hardware default state of the am335x’s internal RTC when there is no Back-Up Battery (and no active 32khz crystal when the board is off).

Regards,