2019-05-15 07:18 PM
2019-05-15 10:52 PM
Are you using CubeMX?
Have you enabled the interrupt in NVIC and RTC?
2019-05-16 02:03 AM
It's hard to tell the problem without seeing your code, that initializes the RTC. As it was mentioned above, probably you havn't enabled the interrupt or configured it in a wrong way.