[Coco] Multi-Pak Interface question.

[Mike Pepe]

Engineer an ASIC for a new MPI? Nonsense. The MPI logic can be constructed with probably less than ten bucks worth of 7400 series logic.

The real engineering challenge I think would be in the physical packaging of such a device.

> -----Original Message-----
> From: coco-bounces at maltedmedia.com [mailto:coco-
> bounces at maltedmedia.com] On Behalf Of KARL SEFCIK
> Sent: Tuesday, March 03, 2009 8:00 PM
> To: CoCoList for Color Computer Enthusiasts
> Subject: Re: [Coco] Multi-Pak Interface question.
> 
> Rick, and others,    I was replying and had to reboot, hope I can
> remember all the stuff I was going to add. Forgive me for not being in
> the chat, but answering on the echo, what if we were to make an MPI on
> an ASIC basis? Get the hardware, engineer it, and then for the Roms and
> software that made the MPI work, we get a huge memory chip and program
> it with Linux? Then the bugs can be worked arounde, Ramtron makes a 4
> MB chip that retains memory (with no power) for life now, just a
> thought.
> 
> --- On Tue, 3/3/09, Rick Taylor <coder32768 at gmail.com> wrote:
> From: Rick Taylor <coder32768 at gmail.com>
> Subject: Re: [Coco] Multi-Pak Interface question.
> To: "CoCoList for Color Computer Enthusiasts" <coco at maltedmedia.com>
> Date: Tuesday, March 3, 2009, 7:28 PM
> 
> Has anyone ever made Multi-Pak clones? Would it be legal to do so?
> 
> On Tue, Mar 3, 2009 at 3:19 PM, Bob Devries <devries.bob at gmail.com>
> wrote:
> 
> > The PAK which failed with the MPI upgrade was the one which came with
> the
> > first version of CocoMax. Its address was at $FF90 IIRC, which is the
> same
> > as the Coco3's GIME chip registers.
> >
> > --
> > Regards, Bob Devries, Dalby, Queensland, Australia
> >
> > Isaiah 50:4 The sovereign Lord has given me
> > the capacity to be his spokesman,
> > so that I know how to help the weary.
> >
> > website: http://www.home.gil.com.au/~bdevasl
> > my blog: http://bdevries.invigorated.org/
> >
> > ----- Original Message ----- From: "J.P. Samson" <
> > jps.subscriptions at gmail.com>
> > To: "CoCoList for Color Computer Enthusiasts"
> <coco at maltedmedia.com>
> > Sent: Wednesday, March 04, 2009 8:37 AM
> > Subject: Re: [Coco] Multi-Pak Interface question.
> >
> >
> >
> >  On Mar 3, 2009, at 3:32 PM, Ryan Pritchard wrote:
> >>
> >>> If one were to acquire a 26-3024 MPI that had the PAL upgrade to
> run with
> >>> the CoCo3, would it still work on a CoCo 1 or CoCo 2?
> >>>
> >>
> >> Yes.
> >>
> >> The caveat being there was one known pak that would be broken with
> the
> PAL
> >> upgrade, but I can't remember which.  It wasn't a common pak,
> to  be sure.
> >>
> >> -- JP
> >>
> >>
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> >>
> >
> >
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> >
> 
> 
> 
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> All of this machinery making modern music can still be open hearted -
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> 
> - Neil Peart, Rush, _The Spirit of Radio_
> 
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