[Coco] new question/survey

[Bob Devries]

Hi Gene,

while there's no great difference in clock speed, there is a difference in 
the circuitry of the clock tap-off point that's used by the disto 2MB kit. 
The PAL Coco3 uses a 28.475 MHz crystal oven, while the NTSC one uses a 
crystal with a resistor and two caps.

However, I suspect other timing issues, but I just don't know enough about 
it.

I did hear rumours once that Tony had looked at the issues relating to the 
PAL coco3 and his 2MB kit, but I have never seen any evidence of it.

Regards, Bob Devries

--
Besides a mathematical inclination, an exceptionally good mastery of one's 
native tongue is the most vital asset of a competent programmer.

Edsger W.Dijkstra, 18 June 1975

----- Original Message ----- 
From: "Gene Heskett" <gene.heskett at verizon.net>
To: "CoCoList for Color Computer Enthusiasts" <coco at maltedmedia.com>
Sent: Thursday, January 21, 2010 4:04 PM
Subject: Re: [Coco] new question/survey



> On Wednesday 20 January 2010, Bob Devries wrote:

>>Hi Gene, you asked:

>>> How many readers of this list have Tony's 2 megabyte kit in their

>>> coco3's, or

>>> something similar?

>>

>>I have a Disto 2 Meg kit, but sadly it doesn't work in a PAL coco3, and

>> that issue was never resolved.

>>

> That is odd.  There is not, AFA memory access, any great difference, 5% in

> clock speed maybe.  Unforch, on this side of the entirely too shaky rock 

> we

> call home, I'd not have a clue where I could find a pal coco3 to play 

> with.

>

> ATM, I've been trying to make a boot disk for level 3, without a lot of

> success so far.

> .

>>Regards, Bob Devries

>>P.S. I do have a 1 MB kit which *does* work, though it's a tight fit in 

>>the

>>PAL coco3.

>

> The disto kit, with its laid back simm memory, fills up some space but

> doesn't actually hit the top cover.

>

>>--

>>Besides a mathematical inclination, an exceptionally good mastery of one's

>>native tongue is the most vital asset of a competent programmer.

>>

>>Edsger W.Dijkstra, 18 June 1975

>>

>>----- Original Message -----

>>From: "Gene Heskett" <gene.heskett at verizon.net>

>>To: "CoCoList for Color Computer Enthusiasts" <coco at maltedmedia.com>

>>Sent: Thursday, January 21, 2010 3:27 PM

>>Subject: [Coco] new question/survey

>>

>>> Greetings all;

>>>

>>> How many readers of this list have Tony's 2 megabyte kit in their

>>> coco3's, or

>>> something similar?

>>>

>>>

>>> It's a brave man who, when things are at their darkest, can kick back 

>>> and

>>> party!

>>> -- Dennis Quaid, "Inner Space"

>>>

>>> --

>>> Coco mailing list

>>> Coco at maltedmedia.com

>>> http://five.pairlist.net/mailman/listinfo/coco

>>

>>--

>>Coco mailing list

>>Coco at maltedmedia.com

>>http://five.pairlist.net/mailman/listinfo/coco

>>

>

>

> -- 

> Cheers, Gene

> "There are four boxes to be used in defense of liberty:

> soap, ballot, jury, and ammo. Please use in that order."

> -Ed Howdershelt (Author)

>

> If you have nothing to do, don't do it here.

>

> --

> Coco mailing list

> Coco at maltedmedia.com

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