David Williams wrote:

> So this leads me to my second, and finally final question: Why does
> hyperterminal put a 0D alongside every 0A and why does it forget 00s?

  00 is ASCII NUL, used in text communications as an idle character and
thus ignored by terminal programs.  0D is Carriage Return and 0A Line
Feed.  If it sees Line Feed without Carriage Return, it assumes UNIX
mode and adds the necessary CR automatically.

  For a text mode terminal, you need a routine in your PIC to break
bytes into halves (Nibbles) and display them as printables (add $30 to
values below $0A, and $40-9 = $37 to values $0A to $0F).

  Or use a terminal with a binary mode.
--
  Cheers,
        Paul B.