> > Right here is where my question arises.  Since there is a low
> > voltage connected to the pin which is configured as an input,
> > then won't the PIC just sample the pin low and overwrite the
> > change I just made?
>
> No, the PIC doesn't "sample" anything if you don't ask it to, by
> executing some instruction that *reads* PORTD. Note that, as shold
> be clear from the data sheet, the write-part and the read-part
> of PORTD is actualy two different things. And there is no direct
> connection between them either then by doing a read/write from
> your code.

Thanks - This is exactly the point that I was forgettting.

Nick

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