Using Port A partially analog and digital

[Skirmitt]

Is it possible to use port A (PIC18f2685) partially analog and digital in the same project ?

I want A0 and A1 as digital outputs and the rest as analog inputs. How should I declare this ?

[Ttelmah]

1) - Yes.
2) - No.

Look at the section entitled 'Register 19-2' in the data sheet.
See the table of the possible analog/digital pin combinations.

You can define A0, and A1, A2, A3 as analog, and the rest as digital, but _not_ have the low pins as digital, and higher pins as analog.
There are 'partial' ways of cheating this a little, but all incur potential costs (power, noise, and only limited use of the other pins).
Build your project to use the pins the way the manufacturer designed the chip. Much easier in both the short, and long term.

Best Wishes

[andrewg]