From: Marko Mäkelä (marko.makela_at_hut.fi)
Date: 2006-06-02 13:53:08
On Fri, Jun 02, 2006 at 01:16:32PM +0200, MagerValp wrote:
> Ruud,
> I have been following your 1541LPT project with great interest. Have
> you considered emulating the drive mechanism at a lower level? Instead
> of redirecting the ROM calls, you could send a continuous stream of
> GCR bytes from the PC, simulating a spinning disk.
Ville Muikkula experimented with something like that over a year ago.
If I remember correctly, he had interfaced a microcontroller to the drive,
with enough memory to buffer a whole disk (or was it a track?) in GCR format.
I guess you might be able to do it with the PC printer port using a
kernel module. A user-space process cannot prevent context switches
nor be driven by interrupts.
Marko
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