Closed miketeachman closed 5 years ago
Fixed by PR. We are deprecating this library. Please consider the many RTC libraries available in CircuitPython if you are looking for supported libraries. Please fork this repo if you wish to continue development.
I was having problems getting alarms to work for a DS3231 device
I debugged this module code and found that Bit 6 of the alarm day/date register is set incorrectly. According to the DS3231 datasheet, Bit 6 is set when day-of-the-week is used.
In this implementation Bit 6 is set for day-of-the-month, rather than for day-of-the-week.
The bug appears in the following line: https://github.com/adafruit/Adafruit-uRTC/blob/a8f7bed2ee6fb85f7d3f2e6c81d5059904ea7ffb/urtc.py#L168
Both alarms work when Bit 6 is set at the following line (and the set is removed at the previous line) https://github.com/adafruit/Adafruit-uRTC/blob/a8f7bed2ee6fb85f7d3f2e6c81d5059904ea7ffb/urtc.py#L170
both alarms work with this change
Thanks for all your MicroPython work!