Hello,
I am working with STM32G030K8T6 microcontroller and I am using an independent watchdog (IWDG). The device goes into standby mode under certain conditions, but since I cannot turn off the IWDG, I am trying to reset the IWDG by waking up with RTC wake-up before the watchdog expires. The reset time of the IWDG is set to 32.8 seconds, so I am trying to set the RTC wake-up timer to 30 seconds so that the device wakes up before the IWDG expires. During normal operation I disable RTC wake-up, before going into standby I enable it and after 30 seconds I expect the RTC wake-up interrupt to run and reset the IWDG with the “HAL_RTCEx_WakeUpTimerEventCallback” function. However, after standby the system seems to reset completely and the wake-up callback function does not work, so the device resets without resetting the IWDG. My thought was that the “HAL_RTCEx_WakeUpTimerEventCallback” function will work while in standby and then it will go back to standby mode. But it doesn't work like that.
How can I control the IWDG while in standby?
Best regards.
