In a message dated 04/03/2003 09:20:31 Eastern Standard Time,
tzimel@OTENET.GR writes:


> I wrote a mini program that uses pins of PORTA.
> I set the pins to output and inputs. When i have
> a 1 value to an input pin i set an output pin wich drives
> to a led to 1. It works with RA1 RA0 RA2 RA3 but not
> with RA4. In general i run same programs and work
> with other pins, and with other not. Sorry for the English.
> Thanks.
>
>

A.4 is an open collector pin.  I think you can use it for digital but I'm not
sure you can use it as an ADC input.  I just try to ignore it most of the
time.  If you need more ADC inputs try the TLC2543.  11-channel, 12-bit
output,very easy
to program.

Sid Weaver
W4EKQ
Port Richey, FL

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