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Re: Apple floppy adaptor. I'm stuck!




"Tristan Mumford" <xtristan.xmumford@xgmail.xcom> wrote in message news:45d65274$0$52912$c30e37c6@lon-reader.news.telstra.net...
> Michael J. Mahon wrote:
> 
>> 
>>> I'm hoping I can get this issue sorted, because it's nearly done! I hope
>>> I can get it working right, because I actually decided to use a
>>> calculator to figure out final storage capacity *Gasp!*. A 2HD disk
>>> should hold 640kb. In it's current form a normal 2HD disk appears as one
>>> big single-sided 160 track disk.
>> 
>> Several places in the Disk ][ driver/RWTS think that a disk has at most
>> 40 or so tracks--like recalibration.
> 
> D'oh! I wonder what I can do about that. Because I have ultimate control of
> the head I guess I could make a single floppy into 4 x semi-virtual 40
> track drives. The uC keeps track of the trackcount, direction, and side of
> disk so it shouldn't be too hard at all.

Do like PC hard drives and lie to the computer about sectors per track.  I don't know how many sectors you are placing on a track, but if it's 16, then tell it there's 64 and then have 4 physical tracks of 16 = 1 logical track 64.