Hello all, I4m using the 16F877 . Portc in input state, when I power on the PIC with high level in portc it works fine, but when I power on with low level the delay routine go work slowing. The interrupts are all off. What4s going on ? Best Regards. Mario -- http://www.piclist.com hint: The PICList is archived three different ways. See http://www.piclist.com/#archives for details.