[Coco] need help with SCSI drives on CoCo3

[Bill Pierce]

Also, there were several people here having problems with the NitrOS9 and HDBDOS SCSI drivers a while back. I don't know if the issues were ever resolved. It may have been just NitrOS9, but I seem to remember HDBDOS being mentioned as well.


-----Original Message-----
From: David Gettle <david17361 at gmail.com>
To: CoCoList for Color Computer Enthusiasts <coco at maltedmedia.com>
Sent: Wed, Apr 8, 2020 6:06 pm
Subject: Re: [Coco] need help with SCSI drives on CoCo3

Thanks Mark,

I'll test that and let you know the results.

On Wed, Apr 8, 2020 at 6:02 PM Mark Marlette <mmarlette at frontiernet.net>
wrote:

> David,
>
> Simply first.  Power off CoCo and SCSI PS.
>
> Unplug MPI and TC^3. Plug TC^3 directly in to the side of the CC3. Power
> up CC3 and SCSI hard drive power supply
>
> Going from memory here.... Make sure your base address is $FF74
>
> POKE &HFF74,1
> POKE &HFF75,0
>
> Does the SCSI hard drive light come on for /s0?
>
> If not then you have a defective TC^3. You will have to send in for repair.
>
> Regards,
>
> Mark Marlette
> http://www.cloud9tech.com
> mark at cloud9tech.com
> mark at gamecamaddict.com
>
>
>
>
>
>
> On Wednesday, April 8, 2020, 04:45:35 PM CDT, David Gettle <
> david17361 at gmail.com> wrote:
>
>
>
>
>
> Here's the situation in a nutshell: I keep getting a drive not ready error
> from both my SCSI IBM hard drive SCSI drive 0, and my  Zip100 Drive 6
> (terminated).
> My CoCo3 is configured as follows: J/M floppy controller with RSDos and
> HDBDos installed with a selector switch, 1 5.25"floppy as drive 0 and a 3.5
> inch drive as drive 1, the cloud9 SuperIDE with a 128mb CF card as master
> and a IDE iomega Zip drive as slave, and a TC^3 SCSI controller with RTC
> connected to an IBM SCSI drive as drive 0 and an IOMega zip 100 as drive 6
> with the termination switch on. the problem I'm having is that I cannot
> access the SCSI drives I am running Nitros9 Ver 03.03.00 booting from
> floppy drive 0 with the CF card as /dd and /i0, the ide zip drive as /i1,
> the IBM drive as /s0 and the SCSI Zip100 as /s6 I also have drivewire
> installed, and a win7 machine running drivewrie3 (I have drivewire4 but
> have not installed it yet. I have tried to make configuration disks with
> all of the included scripts with NitrOS-9 and the only ones that will work
> are mb.floppy and mb.ide, the mb.SCSI and mb.SCSIformat scripts do not make
> a bootable disk on my system.
> Any help would be greatly apreciated I'm trying to recover files off the
> IBM SCSI drive.
>
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