Path: utzoo!attcan!uunet!seismo!sundc!pitstop!sun!decwrl!labrea!rutgers!att!occrsh!occrsh.ATT.COM!scsmo1.UUCP!tim
From: tim@scsmo1.UUCP
Newsgroups: comp.sys.m6809
Subject: Re: Cheap 3.5" Disk Drive
Message-ID: <1600001@scsmo1.UUCP>
Date: 12 Sep 88 21:59:00 GMT
References: <32776@clyde.ATT.COM>
Lines: 19
Nf-ID: #R:clyde.ATT.COM:-3277600:scsmo1.UUCP:1600001:000:929
Nf-From: scsmo1.UUCP!tim    Sep 12 16:59:00 1988


It's been a long time since I added a non standard drive to the coco, but
the cable is simple it should be the same, but  you may have to change the
select jumpers so the drive is selected at the right time.  You also need
to chage the D0 device header (you can use the assembler to make a nice
description file or use the debugger)  If you want to use both sides,
you will need something like the fdiks or other utilitys that will allow
you to format both sides of the disk.  I had a 720K drive as physcal
drive 1, OS9 drive D0, and coco-dos drive 1, this allowed be to boot off
of the standard coco drive and then run OS9 off of the 720K drive. You
have to change DISKMAN (something like that) to get this to work.
Look for the string 01, 02, 04, 40 in the disk code.

If you have an questions about this, contact me, and I will look up
the details.

						tim hogard
						uunet!fw05!scsmo1!tim
						ihnp4!occrsh!scsmo1!tim