Hi Ian, please note I said 'feasible'. Given enough effort and money I am
confident that it is possible to build an MFM to IDE adapter. However, I do
not think it is feasible as a hobbyist project. I may be wrong and maybe
someone will produce such a device. I look forward to seeing it if and when
it happens.
Thanks and have a nice day!
Andrew Lynch
MFM to IDE was: RE: SCSI -1 to IDE and SD project
Mr Ian Primus ian_primus
<mailto:cctalk%40classiccmp.org?Subject=Re%3A%20MFM%20to%20IDE%20was%3A%20RE
%3A%20SCSI%20-1%20to%20IDE%20and%20SD%20project&In-Reply-To=%3C511826.97503.
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Mon Feb 28 15:05:22 CST 2011
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On the subject of disk interface converters, I do believe an MFM to IDE
bridge to be possible. Philip Pemberton has already proven it's possible to
interface an MFM type device to a modern microcontroller - albiet the other
way around, with his DiskFerret project. The MFM interface is very different
from SCSI and IDE, true, but with modern
microcontrollers, the data rate
should be achievable.
Sure, the MFM interface is primitive. You've got the analog-ish data stream
from the disk and some stepper motor drive signals, but
you can translate
those with a microcontroller, have it request the block from the
IDE device,
buffer it, and stream it out to the host. I think it's doable. Just, more
complicated than, say, SCSI to IDE.
SCSI to IDE is a great project, but at least, for me, I've got plenty of
SCSI drives. In fact, I probably have more SCSI disks than IDE. MFM, not so
much.
-Ian
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