I'm using the Adafruit Feather M0 board which has the same chip as the Zero the SAMD21
When I run the RTC / RTCZero examples on the Feather M0 I get some strange behavior
12:00:00 rolls over to 28:00:00 ! 28:59:59 then eventaually rolls to 17:00:00 ! Which then runs correctly until 23:59:59
If you set the RTC to 23:59:59 it rolls over to 24:00:00 and does not increment the day/date.
Can anyone confirm that a vanilla Zero boards work correctly or has the same issues. It would help me narrow down whether its a board specific issue or the library.
I have tried versions 1.2.0 and 1.3.0 of the RTCZero Library and just the SimpleRTC example