Path: utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!sun-barr!olivea!uunet!zaphod.mps.ohio-state.edu!uwm.edu!linac!att!cbnewse!gmark
From: gmark@cbnewse.att.com (gilbert.m.stewart)
Newsgroups: comp.sys.m6809
Subject: Re: COCO upgrade
Summary: Clarify
Message-ID: <1991Feb6.160410.21526@cbnewse.att.com>
Date: 6 Feb 91 16:04:10 GMT
References: <sbfCfTe00WB60DN1sG@andrew.cmu.edu> <4937@mcrware.UUCP>
Distribution: na
Organization: AT&T Bell Laboratories
Lines: 61

In article <4937@mcrware.UUCP>, jejones@mcrware.UUCP (James Jones) writes:
> In article <1991Feb5.162031.13456@cbnewse.att.com> gmark@cbnewse.att.com (gilbert.m.stewart) writes:
> >I can't get COCOMAX  to work (it's the
> >second release for the original COCO).  The prompt comes up with "DISK
> >BASIC 2.0, blah, blah".  Now, does this mean that the controller would
> >probably work with a different version of COCOMAX?
> 
> I use OS-9 exclusively on my CoCo, but...if I remember rightly,
> CoCo Max came with a hunk of hardware to do 8-bit A/D to get enough

As a matter fact, I wonder about that, too.  The high-res box came with
the original COCOMAX.  Now, they indicate the need for the Tandy Hi-Res
pack (which I ordered from Colorware for 10 bucks).  Is there a difference?

And, let me clarify.  The disk is not loading the program at all.  This
may be a controller problem, but I'd rather someone said something definitive
("Nope.  2.0 controller definitly needs 12V." or something like that)
before I experiment by plunking down another 100 or so bucks and find out
I wasted my money.  

> resolution on the mouse/joystick, and there may be problems with that.
> Perhaps some former CoCo Max (or current CoCo Max III) user will come
> forth.
> 
> >What chips can I scavenge from the old COCO?  6821s?
> 
> Depends on which of them will run at the higher clock rate.
> 
> >What is the difference between the 6809E and the 68B09E?
> 
> The clock rate that Motorola is willing to claim they'll run at.

So, does the III run at the high speed by default?  What's the poke
address?  I tried the old location last night and it didn't seem to
do anything.  Sure like the new 40/80 screen, tho'.


> 1 and 2--we're talking a 16-entry color lookup table with colors chosen
> from RGB222 (that's right, RGB222)).

What's that?  Electrical spec., complete interface spec., IEEE nomenclature?

> >Any experience with MIDI programs?
> 
> You're posting from Indian Hill, where I used to work in the same building
> with Mike Knudsen, author of Ultimuse, and you're asking a question like
> that?! :-)

Mike, look at the press you're getting!

> 
> Oops--I edited out the question about OS-9/6809 Level Two.  The folks who
> worked on that did quite a bit of stuff--most notably, windowing.  (I'm

Well, I'm sold. 

Keep those cards and letters spewing forth.

As always, ad-(thanks)-vance.

GMS