hi,

in most of my projects I do it with simple way: I wait not for push event but for realization one as well. Only after both facts I start to execute a user`s choice. Indeed, I use interrupt routine (in fact, I use one of PCA channels which is able to control both edges, and main PCA counter as debounce counter). With such way, main part of a program just waits till "push-pop" flag is set.

Regards,
Oleg