Hi,
I purposefully disconnected the battery to confirm system time updates with
external RTC time. But the below message shows not updated right.
Local time: Tue 2020-09-01 10:32:27 UTC
Universal time: Tue 2020-09-01 10:32:27 UTC
*RTC time: Sat 2000-01-01 00:15:42*
Regards,
NK
On Tue, Sep 1, 2020 at 5:16 PM Tarmo Kuuse <[email protected]> wrote:
> On 01.09.20 13:59, Niresh wrote:
> > I am a bit confused. Please correct me if I am wrong. I have removed the
> > internet connection, power to the board and battery from the external
> > RTC DS3231 module too.
>
> Well, removing the battery will reset your DS3231. This defeats the
> purpose of having a battery powered RTC.
>
> > Its ok, the device tree swaps rtc0 and rtc1 but the system time is not
> > updated with external RTC time after boot.
> > Powering up the board without internet connection and external RTC
> > resetted to default time.
>
> Yes, because you disconnected the battery from the RTC. Don't.
>
> --
> Kind regards,
> Tarmo
>
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