[Coco] Any resolution to patching a Multipack for Coco 3?

[Arthur Flexser]

>From what I recollect, the upgrade is pretty nonessential if you aren't an
OS-9 user.  Bus conflicts would rarely occur under Disk Basic, which
doesn't make intensive use of the GIME addresses that have a problem, if
I'm remembering correctly.

Art

On Sat, 8 May 2004, Mark Marlette wrote:

> At 10:23 PM 5/6/2004 -0700, you wrote:
> 
> John,
> 
> No real two schools about it. If you want it done right, do the patch. The 
> problem is that in the non modified packs, the address range of the MPI 
> ghosted the GIME. Two devices on the bus at the same time is called bus 
> conflict, not a desirable thing. The PAL updates for the 26-3024 are 
> available at Cloud-9 and I do the other satellite updates as well but that 
> is a Time and Material charge and I charge $25 plus s/h. Paul Barton has a 
> web page up on how to do the modification if you want to do it yourself on 
> the 26-3124.
> 
> This simple test will detect if any Mulitpak has been upgraded
> to work with a CoCo3. From DECB prompt enter the following:
> 
> ?PEEK(&HFF90)
> 
> If 126 is returned then the multipak has been upgraded. If
> it returns 255 then it has NOT been upgraded.
> 
> The test above seems to work in the models I have upgraded......
> 
> Regards,
> 
> Mark
> Cloud-9
> 
> 
> >I was reading through my old Rainbows the other day as I was trying to get
> >my floppy controller working with my Multipack on my Coco 3.
> >
> >Apparently, there were 2 schools of thought with patching the newer, white
> >Multipacks with a Coco 3, with some people saying it had to be done, and
> >some people saying it did not need to be done.
> >
> >The group that said it needed to be done suggested that slow degeneration of
> >the computer (the GIME chip?) was possible if you used an unpatched
> >multipack.
> >
> >Now that it's been 10+ years, has anyone experienced any faults?  Are the
> >parts still available to patch the 26-3124s?  Does this need to be done?
> >
> >Thanks all,
> >John
> >
> >--
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> >Coco at maltedmedia.com
> >http://five.pairlist.net/mailman/listinfo/coco
> 
> 
> 
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