Hi BobK,

yes i did it, considering 16F876.
Unfortunately i have to make again the pcb , and the most part of pins are useless to my project ( i use 8 pins only)...but things are gone this way.

So if you use I2c slave DONT use portB interrupt.

I regret that i spent a lot of time thinking i was writing bad code or made bad soldering..but i thanks MicroChip staff for their quick response to my question.



Roberto