Revpi Core Clock Issues

EcoMan · Post by **EcoMan** » 12 Jul 2022, 08:53

Hi,

We have a Revpi Core 3 installed at a client location where they have an issue with their NTP.
We are seeing clock drifts of several minutes, that build up within several days.
Also, when checking timedatectl, I'm seeing RTC time: n/a, and there is no /dev/rtc* devices.
There are also no rtc related messages in dmesg

My questions:
1. Will the RTC help me in case of a missing NTP?
2. Does the lack of NTP justify such time drifts within such short periods ?
3. How can I enable the RTC , as its not showing as installed anywhere?

Thank you.

Post by **giuseppe** » 15 Jul 2022, 11:07

Hello,
our RevolutionPi Core 3 doesn't have an RTC.
See our FAQ at the following link.
RevolutionPi Hardware FAQ | Is there an external clock for the RTC in the RevolutionPi Core3 (+)?

Here is some additional information about RTC in the RevolutionPi
RTC in RevolutionPi

Post by **giuseppe** » 01 Aug 2022, 11:08

Hello,

our RevolutionPi Core 3 doesn't have an RTC.

I would like to correct my answer.
The RevolutionPi3 has an RTC for the system time.
See in our FAQ:
Is there an external clock for the RTC in the RevolutionPi Core3 (+)?
RevolutionPi Hardware FAQ | Is there an external clock for the RTC in the RevolutionPi Core3 (+)?