DS3231 RTC and millis

How can millis() be obtained when the SQW of a DS3231 is already used for alarm interrupt output?

brice3010:
How can millis() be obtained when the SQW of a DS3231 is already used for alarm interrupt output?

My apologies, redundant question: millis() need to be read from the Atmega (Uno), the fact that the DS3231 is present does not interfere.

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