[Coco] Drive issue

[Arthur Flexser]

Extended ADOS-3 has a command for double-stepping for this purpose.  You'd
have to burn an ADOS-3/Extended ADOS-3 EPROM to access this feature, though.

Art

On Fri, Mar 13, 2015 at 10:18 PM, Al Hartman <alhartman6 at optonline.net>
wrote:

> You will need to be able to double step the drives to read a 48tpi disk in
> a 96tpi drive.
>
> I don't think you can do that under RS-DOS. I don't know about
> OS-9/NitrOS-9.
>
> -[ Al ]-
>
> -----Original Message----- From: Daniel Campos
>
> Seeking counsel with the disk drive masters here. :-)
>
> I'm trying to dump some very very old disks that I grabed with a friend
> to my CoCoSDC, but I think I have a problem in my hands...
> I have a double drive unit that has two TEAC FD-55FV-13-U drives. These
> appear to be 720Kb drives (the fabled DSQD drives). I can DSKINI
> perfectly and SAVE and LOAD any DD disks on them BUT I can not read any
> disk originally created on a 180Kb drive.
> There is any way I can make these drives read correctly the disks
> created on an original CoCo drive ?
>
> Thanks!
> Daniel
>
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