I beleive he's referring to PORTA, PORTB, etc. as parallel ports.

Check out the PIC Source Book @ www.dontronics.com for serial code.

-Randy Glenn
E-Mail: PICxpert@yahoo.com
Web: http://i.am/PICxpert

Currently wondering why I can't get in to Safe Mode - where's a Mac when you need it?

-----Original Message-----
From: pic microcontroller discussion list
[mailto:PICLIST@MITVMA.MIT.EDU]On Behalf Of James Paul
Sent: Tuesday, February 22, 2000 2:00 PM
To: PICLIST@MITVMA.MIT.EDU
Subject: Re: [PICLIST] RS232 routine for parallel port


 Luis,

 If you're gonna use two parallel port pins for RS232 serial
 comms, why not just use an RS232 port to begin with?  Seems
 to me that would be easier. Any reason why this wouldn't be
 easier?   Just a thought on my part.  Maybe I'm missing
 something.

                                     Regards,

                                      Jim



On Tue, 22 February 2000, James Newton wrote:

>
> Spend a few bucks for the '877 ICD and have it all!
>
> ---
> James Newton mailto:jamesnewton@geocities.com 1-619-652-0593
> http://techref.massmind.org NEW! FINALLY A REAL NAME!
> Members can add private/public comments/pages ($0 TANSTAAFL web hosting)
>
>
> -----Original Message-----
> From: pic microcontroller discussion list
> [mailto:PICLIST@MITVMA.MIT.EDU]On Behalf Of Luis
> Sent: Tuesday, February 22, 2000 02:08
> To: PICLIST@MITVMA.MIT.EDU
> Subject: RS232 routine for parallel port
>
>
> Hi,
>
> I have used the 8051 before and I am trying to decide which PIC device
> to use in a project. I know that I will need a serial port and I prefer
> a PIC that uses EEPROM program memory (too lazy to use UV erasable
> chips). The relatively new 16F877 seems ideal, but the old programmer
> that I got doesn't support it. Someone told me that I could use one of
> the older chips (perhaps the 16C84) and use a "widely available" routine
> that would convert two pins of a parallel port for RS232 comms. I
> searched the microchip web site but couldn't find anything.
>
> Can anyone please confirm this information. If it is possible to use 2
> pins of a parallel port for RS232 where can I find the routine? And is
> it easy to use? Thanks a lot.
>
> Luis.

jim@jpes.com

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