Re: Work List

[Tom Droege <tdroege@veriomail.com>]

This is one of the things that could be made to work with new code, but 
won't work with QBasic.  (I think - I have not tested for this particular 
character.)  In general, if you try to pass any of the special characters 
out the serial port in QBasic, it intercepts them and tries to do the 
special thing.  This is why I only use the numbers 30-? to send data to the 
stamp.  I then chop of the bottom 4 bits and get 0-F hex.

I have written the stamp code so that it never hangs.  (Well, never?)  At 
least is has not hung in over a year.  There is a reset PB on the pc 
board.  I cannot remember the last time I have had to set it, but it was 
while developing stamp code.  Windows hangs a zillion times more often than 
the stamp - read (many times)/(never).

Tom Droege

At 01:43 AM 9/27/00 -0700, you wrote:
>Regarding reset:
>
>rather than an extra line, i could supply a module that would look for
>"break" on the serial line to reset the Stamp.  the advantage being that
>if one wants to use fiber or other isolation technique then only the
>Tx and Rx lines need to be connected.
>
>is the host PC going to be moved out on the pier when everything
>is debugged as was discussed before and then just run an isolated or
>fiber ethernet for communications to improve survival from lightning?
>
>-ron
>
>On Tue, 26 Sep 2000 aah@nofs.navy.mil wrote:
>
> > Regarding work list:
>
>---snip---
>
> >  17) If the Stamp has a reset line, you might bring it back to the
> >      host computer so that you can reset the Stamp without having
> >      to run outside and cycle the power.  Often you can cheat and
> >      use one of the serial cable handshake lines for this feature.