Also, RA0:2 still work fine without being configured for digital. 
Could this be something to do with RA3 being the +5V reference for
analog?  Also, that doesn't explain why it works when RB0 is low.

On 5/21/05, Dave Turner <dave.w.turner@gmail.com> wrote:
> isn't alalog only for input?  If it's set to output, how can it be analog?
> 
> On 5/21/05, Andre Abelian <andre@ditechnology.com> wrote:
> > Dave,
> >
> > You need to make RA3 digital I/O the default is set to analog
> >
> > Andre Abelian
> >
> >
> >
> >
> >
> >
> > -----Original Message-----
> > Subject: [PIC] Very strange RA3 pin
> >
> > Hey
> >
> > I have got a very strange RA3 pin.  It is being used as an output,
> > with an LED connected.  I am using a PIC18F1320.  For some reason, the
> > LED on RA3 always stays off, but, and this is the strange part, when I
> > press the active low switch on RB0, the LED works normally.  I have
> > checked nothing in my code is referencing porta,3, and the hardware is
> > fine.  BTW, I'm using the PICDem 4 board, and a MPLAB ICD2 as a
> > programmer.
> >
> > --
> >
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> 
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> 


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