>I was trying to use PORTA<4> as output pin but did not have any
>luck. Even if I use something like that:
>        BSF     PORTA,4
>LOOP:   GOTO    LOOP

>I do not see any positive voltage on output pin.
>Could it be related to the fact that RA4 is a schmit trigger ???
>
>Thank you.

RA4 on the '84 is open drain when configured as an output. Try using
a pull up resistor of 10K or so.

Regards

Tony


Just when I thought I knew it all,
I learned that I didn't.