brah wrote:
>
>         I've read the discussions re port registers and latches where care has
> to be taken, and I've noted the necessities.
>         However, I wonder if it is common, or even regular, to swap a pin from
> input to output and back again repeatedly every mS or so....etc.
        Thanks to all who replied. Now I know I'm not doing something I perhaps
shouldn't, I shall go and nut it out.

         Regards to all
                 Howard.

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