Weekday changes after deviceStart causing alarm to not work

[woutervdhof]

Expected Behavior

Actual Behavior

When the date and time is set using the Adjust() function, the weekday in the registry is sometimes not correct afterwards. For me this is mainly a problem because it causes the alarm to not work when using alarmType=0x7.

Steps to Reproduce the Problem

The problem only occurs in some chips. It seems some batches are more affected then others. This makes reproduction somewhat tricky. For issue 4 what I had to do to reproduce was:

• Stop the oscillator
• Set the day of the week to 4 or 5
• Start the oscillator
• Read the day of the week
• The day of the week has changed

Specifications

• Library Version: Current master
• IDE Version:
• Platform: esp-idf
• Subsystem:
• any other details needed to reproduce the problem

[SV-Zanshin]

Resolved with the pull request containing suggested fixes by @woutervdhof