Thank you to everybody who made suggestions!!! I appreciate the time you took to
 answer my question.

www.geocities.com/researchtriangle/lab/6584
                                        Thanks once again,
                        Steve Kosmerchock

email:   steve.kosmerchock@celwave.com


---- PICLIST(a)MITVMA.MIT.EDU's Message ----

You can use the MAX206 which is offered from Maxim which is an 24 pin
SSOP which is very small and only about $2.00.

> > I know this has been mentioned before, I looked at the archive and I don't
> have lots of free time on my hands. All I need to know is what will it take
> to communicate to a PIC with a PC. I just need to transmit signals to the
> PIC via PC. I DON'T need the PIC to talk to the PC. Do I need a rs-232 ic
> or what?? I'm new to this and am not sure what it will take. Any advise and
> suggestions would be apprecited!!!!
>
>
> You can get there with just connecting the pic directly to the PC. If you
> do, the logic 1 in the pic output is a zero to the PC.
> I've written bit-banger full duplex com for the '84. In my case, we used a
> buffer transistor, but it wasn't strictly needed.
> If you want a little protection on the port pins, a 470 ohm resistor would
> be a good idea.
> Any solution that only sends +5 and ground is violating the spec, but the
> 1489 receivers (maybe the most popular 232 Rx chip
> on the planet) only sense + and ground.  The '88 transmitter sends +/-V as
> per spec.
>
> A maxim chip will get you there, but it's large, and expensive.
>
> The soft uart routines have been done to death, so I imagine you've got that
> code already.
>
>
Todd Brisebois
Engineering
Fitel-Photomatrix
tbrisebois@fpmx.com   (613)228-9695  ext.229