The RTC uses a watch crystal, 6ppm is pretty good going for a watch crystal, only 4 seconds
a week!
I notice that on my Due (R3) the actual crystal package has a transparent top and you can
see the tuning-fork shaped piece of quartz inside!
The RTC uses a watch crystal, 6ppm is pretty good going for a watch crystal, only 4 seconds
a week!
I notice that on my Due (R3) the actual crystal package has a transparent top and you can
see the tuning-fork shaped piece of quartz inside!