Yes guys, you are both perfectly right but I DID notice it I was just posting wherever there could be someone familiar with PICs and crosstalk troubles (electronical aspects do not depend on the language you use).
Besides, I was thinking that some basic expert could have also been involved in C matters.
I've already tried to write in C forums but nobody's been helpful yet, so it was despair that drove me here

Of course, I apologize if my post here was unappropriate: in that case, delete it and sorry again

ciao!