[comp.sys.atari.st] ST comm. with Portfolio using par. interface

news@prles2.prl.philips.nl (news) (01/31/91)

It would be very interesting to be able to transfer files
visa versa between the Atari ST and Portfolio using the
Parallel interface card.

As I have been told this doesn't work, even not with the supplied
MSDOS portfolio software under PCDITTO on the ST.
It seems that it is possible to make some connections on the
parallel interface cable, und thus enabling bidirectional 
communication via the par. interf.
Does anybody have any info on this, and which signals are used normally
with a real PC machine.
Is there a Public domain program for the ST or PCDITTO to communicate
with the Portfolio + Par. Intercafe (with build in software),
or have info to enable me to write meself.

Fons Bruls, Philips Nat. Lab, Holland