[Coco] MPI and NitrOS-9

[L. Curtis Boyle]

As long as the different RS-232 packs are at different addresses, all you should have to do is change the base address in the device descriptors (say, /T1, /T2, /T3) and it should work fine under NitrOS-9.
The Super controller II is a no-halt controller, so if you have the no-halt floppy driver installed, it won’t pause and eat keys while accessing the floppies. (The IRQ version, vs. polled, is the most multi-tasking friendly). The SCII also had the ability to add a daughter board, of which there were several different ones (including 3 in 1 and 4 in one boards that added various things), so check if you have one of those as well.
It is one of the better floppy controllers, because of all of this (I think supported multiple disk ROM’s as well).
L. Curtis Boyle
curtisboyle at sasktel.net



> On Oct 19, 2016, at 11:46 AM, Bill <cwgordon at carolina.rr.com> wrote:
> 
> I have a Coco 3 (512K) with a Coco3 upgraded MPI.  Presently, there is a
> Disto Super Controller II in slot 4, an RS 26-3022 in slot 3, an RS 26-3022
> w/HDBDOS 1.4 DW3   in slot 2, and an RS 232 Pak in slot 1.
> 
> Using RS-Dos, I can POKE &HFF7F,51 and access slot 4,  POKE &HFF7F,34 and
> access slot 3,  POKE &HFF7F,17 and access slot 2, and POKE &HFF7F,0 and
> access slot 1. 
> 
> 
> 
> Question #1: is there a way to access each of the individual slots while
> running NitrOS-9?
> 
> 
> 
> Question #2: does anyone know of a PDF version of the Disto Super Controller
> II manual? I have the controller, but don't know what it's exactly capable
> of, or if it's even worth having.
> 
> 
> 
> Thanks
> 
> 
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