8 Dec
2009
8 Dec
'09
11:19 a.m.
On Mon, 7 Dec 2009, Christian Corti wrote:
IEEE-what? By definiton an IEEE-488 parallel port can emulate GPIB
because IEEE-488 _is_ GPIB
On Sat, 5 Dec 2009, J. David Bryan wrote:
Correct me if I'm wrong, but in theory can't an IEEE compatible parallel Ansgar Kueckes has released a new version of his
"HPDrive" disc emulator
that works with HP 64000 logic development stations and HP 1000 MEF-series
This is a great project...
minicomputers, in addition to the HP 9845. The
emulator is hosted on a
Windows PC with a GPIB interface card and appears to the target system to
^^^^^^^^^^
... but alas, this makes it pretty useless for me :-( port emulate a GPIB with the correct software and
cable adapter?
If you mean the bidirectional printer port that's found in many PCs, I
don't think you have enough signal lines. GPIB has 8 data lines and 8
control lines (split up into 3 handshake lines and 5 bus control lins),
all bidiriectional. And IIRC there are times when at least the data lines
have to be open-collector (repsonding ot a prallel poll being the most
common, I think).
I don't think a PC printer port can do that, can it? A Victor 9000/Sirius
printer port on the other hand...
-tony