[Coco] 8inch floppy on a coco

[rietveld rietveld]

Some success when using a 3022 controller and a CoCo ribbon cable spliced into the drives 50 pin connector

When I do a DSKINI 0 the drive starts to format the disk but gives an IO error

BUT...

When I do a DIR after the DSKINI 0 the disk shows as  blank and formatted and ready to use

PRINT FREE(0) shows 68

It looks like the disk is formatting as a 35 track

Sent from my BlackBerry 10 smartphone.
  Original Message
From: Francis Swygert
Sent: Friday, May 18, 2018 6:42 AM
To: coco at maltedmedia.com
Reply To: CoCoList for Color Computer Enthusiasts
Subject: Re: [Coco] 8inch floppy on a coco


Date: Thu, 17 May 2018 12:26:13 -0400 (EDT)
From: mike at borncoco.com


Just curious how you're interfacing these to your CoCo. Are you aware of this device?

[ http://www.dbit.com/fdadap.html ]( http://www.dbit.com/fdadap.html )

Cheers,
-Mike Rowen

-----Original Message-----
From: "rietveld rietveld" <rietveldh at hotmail.com>
Sent: Thursday, May 17, 2018 12:12pm

I managed to get it to spin up but i cant get the disk to format I was hoping to just format it as a 35 track disk just as a proof of concept
===================================================
The link Mike posted has a lot of info on connecting 8" drives to a 5.25" controller, not just the cable adapter. Interesting! The CoCo controller chip (unless you have a 8477, which was used in a few, or is it a drop in replacement? Don't recall now...) probably won't write single density, but may read it. I remembered the format might be different, either tracks or density, but didn't remember how. The text with that adapter board not only explains the differences but some pointers and software to help get a PC to read/write 8" floppies that might be of use.  Frank Swygert
 Fix-It-Frank Handyman Service
 803-604-6548

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