26 Jun
2012
26 Jun
'12
11:17 p.m.
On 26 Jun 2012 at 21:19, dwight elvey wrote:
If I knew what machine it was intended for, I might
start with a controller like the one in the machine. It
already has much of the needed hardware and then
a simple microcontroller. Not need for high speed.
Say I was making it for an XT. Just find a similar XT
controller. A few interface chips to control the digital
part and the controller to send and recieve the MFM.
A little bit of signal changing but not rocket science.
But what's the point of doing this for an XT when IDE controllers are
already available for the ISA bus (even the 8 bit bus)? One can even
fit an compact flash card to one and be completely solid state.
But then, it's not a one-size-fits-all solution. If there's a need
for an MFM drive on an uncommon piece of gear, one is stuck with re-
engineering the thing again.
--Chuck