Hi @nlaza.1 and welcome to the Community :),
According to the RM0440 and precisely the comparator behavior in low-power modes table, the COMP registers are powered down and must be reinitialized after exiting Standby.
However, the sleep mode has no effect on the comparators.
But, the comparator interrupts cause the device to exit the Sleep mode.
When your question is answered, please close this topic by choosing Select as Best. This will help other users find that answer faster.
Thank you
Kaouthar
To give better visibility on the answered topics, please click on Accept as Solution on the reply which solved your issue or answered your question.
