asyncronous comm

Archiver

I'm trying to communicate via a comm port to a BS2. I have no
problems getting the stamp to run on it's own. I'm using gwbasic to
do an "open com #" and a "print #" command (with other promping and
text input code). I can get the gwbasic program to display the
return print statement from the read command when the serial cable is
attached to the pc and the bs2, but the odd thing is the stamp
doesn't react to commands, and the print command works without the
battery but not without the serial cable attached.

Any hints? I'm not looking for direct answers, just general hints
where to look. I could post the code, but I basically plagerized it
off of the loso program index file.

TIA, John.

Archiver

Got it figured out. The attn pin needs to float.

Also figured out it's easier to read this group when you have all
threads emailed to my Yahoo email account.

Regards, John Remington.

--- In basicstamps@y..., "jrem123" <jrem123@y...> wrote:
> I'm trying to communicate via a comm port to a BS2. I have no
> problems getting the stamp to run on it's own. I'm using gwbasic
to
> do an "open com #" and a "print #" command (with other promping and
> text input code). I can get the gwbasic program to display the
> return print statement from the read command when the serial cable
is
> attached to the pc and the bs2, but the odd thing is the stamp
> doesn't react to commands, and the print command works without the
> battery but not without the serial cable attached.
>
> Any hints? I'm not looking for direct answers, just general hints
> where to look. I could post the code, but I basically plagerized
it
> off of the loso program index file.
>
> TIA, John.