Hi,
I'm using the STM32U5 MCU. The system is entering and waking up from Standby mode periodically. I initialize the IWDG from CubeMX. Independent watchdog counter is frozen in Standby mode.
It works well, but the system resets for approximately every 1000 wake-ups. It's not always the same value, sometimes it happens after 200 or more than 2000.
In those resets I get the IWDG reset flag and I know it occurs after the initialization (MX_IWDG_Init). Approximatelty 1 second after wake up. I've added IWDG refresh after initialize it, but apparently it doesn't solve the problem. The value to active IWDG is high enough for the count to be complete.
What could be the solution?
BR,
