18F4431 - DIP chip
I have made:
TRISC = '11111111' (all pins IN) and applied 10K pullup resistors to RC<7:0>.
The sole modules involving RC6 (AFAIK), SSPCON and RCSTA, = '00000000'.
My problem:
Reading PORTC is correct for all pins but RC6 which always reads '0'.
I measured the voltage at the pin, getting 0.28 V.
Also checked Silicon revision 3 to no avail.
Tested with two different chips.
What I am overlooking here?
I have made:
TRISC = '11111111' (all pins IN) and applied 10K pullup resistors to RC<7:0>.
The sole modules involving RC6 (AFAIK), SSPCON and RCSTA, = '00000000'.
My problem:
Reading PORTC is correct for all pins but RC6 which always reads '0'.
I measured the voltage at the pin, getting 0.28 V.
Also checked Silicon revision 3 to no avail.
Tested with two different chips.
What I am overlooking here?