On Wed, Oct 17, 2018 at 12:58 PM 'David Viel' via BeagleBoard <
[email protected]> wrote:

> Adafruit DS3231 Precision RTC Breakout
> <https://www.adafruit.com/product/3013>
>
> Adafruit DS3231 Precision RTC Breakout
>
> The datasheet for the DS3231 explains that this part is an "Extremely
> Accurate I²C-Integrated RTC/TCXO/Crystal"....
> <https://www.adafruit.com/product/3013>
>
>
>
Okay, that one is safe to be plugged into v3.3

Then setup a U-Boot overlay like:

https://github.com/beagleboard/bb.org-overlays/blob/master/src/arm/BB-I2C2-RTC-DS1338.dts

But with the correct port, and device name..

Then you'll get it bootup as rtc0 and everything date/ntp/etc will just
work, without any other special scripts..

Regards,

-- 
Robert Nelson
https://rcn-ee.com/

-- 
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