‎2019-04-18 5:37 AM
Dear Members,
How can I save date and time setting on STM32L152RE ?
Everytime I have reset, it's initialized to the value on init code, how can I the value after power off ?
I put a battery on VBAT , it doesn't help,
Thanks
‎2019-04-18 6:03 AM
How is your RTC clocked? Make sure the RTC and its clock (LSE or LSI) remain active when your MCU goes to sleep/stop/standby mode (RTCEN, LSEON, LSION bits in the corresponding RCC registers).
‎2019-04-18 6:55 AM
I'm using LSI, do I need to use LSE.
I completely power of the system...I put 3V battery on VBAT to make RTC keeps running.....
Any ideas ?
