[Coco] SuperIDE and floppy disk

[Mark Marlette]

Lots of keyboards too! NICE! :)




________________________________
 From: Luis Antoniosi (CoCoDemus) <retrocanada76 at gmail.com>
To: CoCoList for Color Computer Enthusiasts <coco at maltedmedia.com> 
Sent: Friday, May 10, 2013 9:02 AM
Subject: Re: [Coco] SuperIDE and floppy disk
 

Also, I want to tell there is a perfect spot for a 3 1/2" floppy drive on
top of the MPI :)

pic.twitter.com/QezbmCQg5Q <http://t.co/QezbmCQg5Q>



On Fri, May 10, 2013 at 9:49 AM, Luis Antoniosi (CoCoDemus) <
retrocanada76 at gmail.com> wrote:

> That's de winner config:
>
> slot1: sIDE
> slot2: Orch90
> slot3: S/Sc
> slot4: FD-500
>
> With this i didn't have any other conflict and I even played Interbank
> incident with voice and sound! Great :D from the superIDE.
>
>
>
>
> On Thu, May 9, 2013 at 11:36 PM, Mark Marlette <mmarlette at frontiernet.net>wrote:
>
>> sIDE to slot one.
>>
>>
>>
>> ________________________________
>>  From: Retro Canada <retrocanada76 at gmail.com>
>> To: CoCoList for Color Computer Enthusiasts <coco at maltedmedia.com>
>> Cc: CoCoList for Color Computer Enthusiasts <coco at maltedmedia.com>
>> Sent: Thursday, May 9, 2013 8:30 PM
>> Subject: Re: [Coco] SuperIDE and floppy disk
>>
>>
>> removing the sc/c from slot1 seems to be fine now. manual says it must be
>> inserted on slots 2-3 only. what could be used on slot1? rs232?
>>
>> Sent from my iPhone
>>
>> On 2013-05-09, at 7:28 PM, Darren A <mechacoco at gmail.com> wrote:
>>
>> > On Thu, May 9, 2013 at 4:27 PM, Gene Heskett wrote:
>> >> On Thursday 09 May 2013 13:02:06 Luis Antoniosi (CoCoDemus) did opine:
>> >>
>> >>> well this is what is written on cloud-9 site:
>> >>>
>> >>> http://www.frontiernet.net/~mmarlette/Cloud-9/Hardware/MPI%20PAL.html
>> >> Mark, can you explain the theory on this? $FF90 is a (write only?) GIME
>> >> address.  Ahh read is going to return $FF because its write only,
>> which is
>> >> precisely the reason in Nitros9 that the DP=00, offset $90-9F is an
>> image
>> >> of what is in the GIME.
>> >
>> > An MPI without the CoCo3 mod will activate its data bus buffer outputs
>> > when the CoCo reads from addresses between FF80 and FFBF.  The
>> > modification eliminates that range of addresses from the "readable
>> > hardware" space.  Apparently the buffers in the MPI output a '1' when
>> > nothing is driving the input, and so you get 255 for a PEEK of the
>> > write-only location. With the mod in place, the buffers remain
>> > tri-stated (Z) and you get the usual stale data value of 126.
>> >
>> > Darren
>> >
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>



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