On 12/05/2010 02:04 PM, Chuck Guzis wrote:
On 4 Dec 2010 at 13:17, jim s wrote:
Does anyone have experience or notes on the
absolute minimum hardware
to do parallel narrow (and slow) SCSI.
I think I once investigated this and found that a PC parallel port in
bidirectional mode could at least talk to a slow SCSI device. IMOHO,
that would be the minimum.
ISTR something about the fact that the parallel zip drive was basically
a SCSI device internally, but used level shifters or whatever was
necessary to make it I/O compatible with the parallel port.
If I'm not mistaken, I think the driver even "talked to the drive" with
SCSI commands over the parallel port... but I could be full of condensed
milk.
However, if one were to attempt to reverse-engineer that device, it
might be old and/or slow enough to glean some clues on how to interface
parallel -> SCSI...
I might be able to find a parallel Zip drive, but most that I cared to
own were either internal IDE or external SCSI, as I personally had no
shortage of SCSI-based machines.
Laterz!
"Merch"