15 Sep
1999
15 Sep
'99
8:41 a.m.
Hell, big PICs like the 17C54 run at 33MHz, at damn near 1 avg ins/cycle,
too. I'm *sure* it could be done with a PIC.
It'd be a neat hack, no? :-)
-Dave McGuire
On Wed, 15 Sep 1999, morrison(a)t-iii.com wrote:
I wonder if one could use a PIC chip to do it.
They'll do 20Mhz, and they
like bits.
Neil Morrison
email:morrison@t-iii.com
-----Original Message-----
From: ard(a)p850ug1.demon.co.uk [SMTP:ard@p850ug1.demon.co.uk]
Sent: Wednesday, September 15, 1999 12:35 PM
To: Discussion re-collecting of classic computers
Subject: Re: Central Point Option floppy controller
..........
> But that doesn't mean that's the only way to read such disks. The format
> (as in just what pulses appear where on the disk) is pretty well
> documented. It wouldn't be that hard to use some random logic or an FPGA
> to make a disk controller that read apple disks and transfered bytes to
> whatever host you wanted to use.
>
> I would guess the pulse rate is going to be low enough that modern CPUs
> could read the pulse-stream off the disk directly and decode it. I'm not
> going to try it, but I would be very supprised if it couldn't be done.
>
>
> -tony