I use the VDD_SNVS_IN pin with a 0,47F SuperCapacitor and, when I lost the power supply, the voltage on this pin decreases so fast under the operating values. This situation leads to a problem. If I reestablish the power supply and this voltage hasn't lowered enough, the MCU gets stuck.
The solutions I have seen to this situation is: wait to this voltage decreases to almost 300mV (it's so much time) or make a reset with POR_B pin.
Is there another posible solution to this or something I dont have well in my design?
This is my design. I know I need to add a diode from VDD_HIGH_IN to VDD_SNVS_IN, could this issue solve my problem?
Please, could reply to this problem?
Thank you.
Please, could reply to this problem?
Thank you.