[Coco] HDB-DOS eprom in a floppy controller

[Barry Nelson]

> 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?
> 
> 
> 
> Sent from my BlackBerry — the most secure mobile device

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?