Me too.  I think the general opinion is that it works for one-offs and
small stuff, but it may not be wise to depend on it in a large-run
commercial product.  For the PIC receiving RS232 it seems to work quite
well, and I've han no trouble at all.  For sending, you'll get a
non-compliant signal that *most* RS232 receivers will see but no
guarantees.

Dale

On Fri, 13 Oct 2000, Leo wrote:

> I have used the direct connection between PC (EIA RS232) and the PIC as
> showed in PBP manual. It works very well. You just take attention on the
> polarity. The TTL serial have logical level inverted.
>
>
> Ciao
>
>
> Leo
> ----- Original Message -----
> From: "Matthieu Baraban" <Matthieu_Baraban@PALM.COM>
> To: <PICLIST@mitvma.mit.edu>
> Sent: Friday, October 13, 2000 11:44 AM
> Subject: PIC 16F84 & serial port on a PC
>
>
> > Hello,
> >
> > I am designing a board that has to exchange some data between a PIC16F84
> > and a serial port on a PC, in both ways.
> > This will be done for about 1 minute, every week.
> > So, my question is :
> > Do I have to use a TTL<->RS232 converter, or can I simply use resistors as
> > it is explained sometimes on PIC web pages.
> > Could you give me your advices ?
> > Thanks a lot,
> > Best regards,
> >
> > Matt.
> >
> > --
> > http://www.piclist.com hint: To leave the PICList
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> >
> >
>
> --
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>
>
>

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