I need to implement a feature similar to that provided by the IWDG on the STM32L073RZ. The issue I'm facing is that the maximum timeout value of the IWDG is ~ 32 seconds - I need something that can work for timespans up to 24 hours.
Pouring through the datasheet isn't really helping at the moment. I'm already using the RTC to wake from Standby mode (though this feature is to prevent an issue that may occur if an RTC wakeup isn't serviced correctly so I wouldn't want to use the RTC in this situation).
Any suggestions are greatly appreciated.