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-----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.