I am currently involved in a data logging project that uses a 16C74 to
sample 8 analog
inputs and transmit this data to a computer using RS232.

A have this working using a slightly modified version of the microchip data
sheet "care &
feeding of the PIC" (or something like that) which is available from their
web site.

I now want to get the pic to receive a byte from the RS232 port and output
it on port A,
however I cant get this to happen.

I tried using the file RS232.asm that comes with the PICDEMO - 2 system
(also on the
microchip data CD) this sends / receives / outputs serial data. this works
OK. However when
this code is merged with the rest of my code either nothing works or the
chip ignores RS232.

I would appreciate any comments.

my E-mail address is keelinrj@eng.derby.ac.uk

Thankyou
Rob Keeling