[Coco] HDB-DOS eprom in a floppy controller

[Bill Gunshannon]

On 12/22/20 4:56 PM, Barry Nelson via Coco wrote:
>> On Dec 21, 2020, at 1:18 AM, coco-request at maltedmedia.com wrote:
>>
>> Date: Sun, 20 Dec 2020 14:32:50 +0000
>> From: rietveld rietveld <rietveldh at hotmail.com <mailto:rietveldh at hotmail.com>>
>> To: Coco mailing list ​ <coco at maltedmedia.com <mailto:coco at maltedmedia.com>>
>> Subject: [Coco] HDB-DOS eprom in a floppy controller
>> 	
>> If I have a 24 pin eprom burned, with HDB-DOS LBA for the Glenside controller, will the fd500 controller still work as a normal disk controller?
>>
>> I have a Glenside with 2 headers soldered on it. When i plug in a standard disk controller and boot HDB-DOS from floppy the Glenside boots up as expected but when I DRIVE OFF to use the physical disk 0 it just hangs.  I am guessing that the RSDOS in the controller is conflicting with the HDB-DOS i am loading from disk.
>>
>> I was hoping that if I put HDB-DOS in the floppy controller that it would auto boot the hard drive while still allowing physical disk use with the DRIVE OFF command.
>>
>> Will this work?
>>
>>
>>
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> 
> That should work fine. If you are loading HDDOS from a disk, the ROM should be disabled and DOS should be running from RAM. Which MPI slot is the Glenside in and which slot is the floppy controller in?
> 

I'm a little confused.  Why would you stick a Glenside IDE Controller
in an MPI?  It has two expansion slots on it already.  I assume being
as you couldn't access them anyway in most of the slots that you can't
use the expansion slots if you do have it in an MPI.

bill