Hi mister_e

thanks for your response.

I thought that I would have to use timers.

but all this timer stuff with all those options and registers confuses me completely.

What I have read so far is that TMR0 is not the best choice since it shares some ressources.

Could someone please explain to me how those timers work.
What registers are do be dealt with?

what would be the highest frequency I could count and what would be the resolution?

I have not used timers before but it looks like this is something i've got to learn now.

Any help is appreciated.