[Coco] PC-to-CoCo floppy drive cable, Error corrections

[Bill Barnes]

My Bad, logic error on my part, IBM Cable would NOT do the trick without redefining how the Drive is selected within Disk Basic and OS-9.

Logically IBM signals:

d0 - drive 0
d1 - drive 1
d2 - drive 2
mo - motor on

drive selected = signals required.

d0 = d0 + d2
d1 = mo + d1

no shared signal between d0 & d1.  I stand corrected in that twisting the connections 10-12 or 9-13, for the Drive 0 position only, would work best without rewriting the signals submitted to the drives and locking the controller down to just two drives.

Oh yeah, where I said "(Amiga: Drive Ready)" in my post for pin 34,  it should say Shugart there instead.

-Later!   -WB-    -- BABIC Computer Consulting.


--- On Wed, 11/12/08, Bill Barnes <da3m0n_slay3r at yahoo.com> wrote:

> 10 DS0 (Shugart: DS 0)
> 12 DS1 (Shugart: DS B)
> 14 DS2 (Shugart: DS 2)
> 16 Motor on

> Sounds like an IBM floppy cable will work though for this.