The Alarm can be set only in minutes level, not seconds.
If you want it to be in seconds, then you can use the timer components to generate timer interrupts.
- Madhu Sudhan
thank you for your reply. thanks for detailed datasheet, i could test more easily.
I wish your datasheet will be updated such as this things
and I want to know the sequence of the RTC. As you know, the time which is at 2:59:59 changes 04:00:00 after 1 second.
so, I wonder if RTC operates correctly in a day. and I want to know how long RTC uses, such as 2 years, 4 years .....