[Coco] Coco 1 & 2 differences

Thu May 23 22:06:03 EDT 2013

Luis, If you don't mind, I would like both the disk and the source. Just send them in a private email.

I have a 3x 3.5 drives. It's the disks themselves that are getting unusable. the drives are doing ok. All 3 drives are dsdd 720k so using the HD disks is unreliable. The 720k drives (according to others) don't write a strong enough signal for the 1.4mg HD disks to be reliable. I know I had a lot of problems with this before. I do have a couple of the 1.4mg drives laying around but neither seem to work with the coco.

Bill Pierce
My Music from the Tandy/Radio Shack Color Computer 2 & 3
https://sites.google.com/site/dabarnstudio/
Co-Webmaster of The TRS-80 Color Computer Archive
http://www.colorcomputerarchive.com/
Co-Contributor, Co-Editor for CocoPedia
http://www.cocopedia.com/wiki/index.php/Main_Page
E-Mail: ooogalapasooo at aol.com

-----Original Message-----
From: Luis Antoniosi (CoCoDemus) <retrocanada76 at gmail.com>
To: CoCoList for Color Computer Enthusiasts <coco at maltedmedia.com>
Sent: Thu, May 23, 2013 9:51 pm
Subject: Re: [Coco] Coco 1 & 2 differences

Do you need the asm  files or a disk image ?

Look this:

pic.twitter.com/4ZmaG0v5Ql <http://t.co/4ZmaG0v5Ql>

I just installed a 1.44 3 1/2 on my FD-500 and works like a charm, way more
reliable than those old teac drives and i can use up to 720k on os-9.

You just need to cover the HD hole on HD floppies or just use DSDD 3 1/2.
It works and the data just stay there for a long time no matter what other
people may say, it just works and worked for me with other platforms too
like the MSX.

What I noticed indeed is better to format them on a PC first with a
 "format a: /t:80 /n:9" and after format them on the coco.

On Thu, May 23, 2013 at 9:01 PM, Bill Pierce <ooogalapasooo at aol.com> wrote:

>
> Luis, I would love a copy of your "patched" CoHR. Also the codes to use
> the new ones you patched in.
> I ran a Coco  2 for many years before I could afford a Coco 3. I had to
> rob a chip from my 2 to fix my 3 after about a year of owning the 3 so that
> ended my Coco 2 days. I just aquired this Coco 1 and I know there's a few
> differences, but don't know how much difference in hardware calls. It has
> ECB 1.0 and I'd love to know if the later versions will work. If so, I want
> to upgrade the CB & ECB chips. I also need to get HDBDOS burned for a
> controller so it will boot into HDBDOS for DW. I have several extra disk
> controllers. I need to do this to my Coco 3 as well.
> Right now my Coco 1 is set up with only a serial to DB9 going to the PC
> and a cassette cable going to the PC's headphone jack to load HDBDOS. It's
> reall a pain to CLOADM"HDBDOS" and have to run DosBox on my PC for
> "Casout.exe" just to boot up. My Coco 3 boots HDBDOS from a real floppy and
> sometimes I may have to try 4 or 5 times before it reads the floppy. The
> disks are becoming unreliable. A rom would eliminate this. No drives, just
> a controller pak with the HDBDOS rom.
> I currently run on of my Cocos on DW with VCC w/becker port running in
> another instance of DW. As soon as I get another USB2DB9 converter, I'll be
> running all 3. And soon, I hope to be adding a 2nd Coco 3.
> 4 Cocos all connected to DW.... Cocoing couldn't be more fun
>
> Bill Pierce
> My Music from the Tandy/Radio Shack Color Computer 2 & 3
> https://sites.google.com/site/dabarnstudio/
> Co-Webmaster of The TRS-80 Color Computer Archive
> http://www.colorcomputerarchive.com/
> Co-Contributor, Co-Editor for CocoPedia
> http://www.cocopedia.com/wiki/index.php/Main_Page
> E-Mail: ooogalapasooo at aol.com
>
>
>
>
> -----Original Message-----
> From: Luis Antoniosi (CoCoDemus) <retrocanada76 at gmail.com>
> To: CoCoList for Color Computer Enthusiasts <coco at maltedmedia.com>
> Sent: Thu, May 23, 2013 8:35 pm
> Subject: Re: [Coco] Coco 1 & 2 differences
>
>
> speaking of CoHR i made a patch to it. So now it understand OS-9 cursor
> codes intead of its very own esc codes. It runs fast because it understands
> the cursor on/off codes too. In fact i implemented all os-9 codes.
>
> Now i can run minted on it :) too bad not enough memory is left to run
> dynacalc :(
>
> seems most of the people are coco3 and nobody cares for the coco1&2 :'(
>
>
>
> On Thu, May 23, 2013 at 8:29 PM, Bill Pierce <ooogalapasooo at aol.com>
> wrote:
>
> >
> > Hi,
> > Are there any differences in the VDG chip in the Coco 1 & 2?
> > I seem to remember someone comparing these before but can't remember
> where
> > I saw the info. I know there were differences in the serial port use. Are
> > there any other differences?
> > I have a Coco 1 (26-3003A) "F" board, 64k, and the reason I'm asking is
> > that I created a NitrOS-9 boot using the CoHR driver and it won't boot. I
> > can switch the CoHR out to the CoVDG and it boots fine. That's why I was
> > wondering about the VDG chip.
> >
> > Thanks
> >
> > Bill Pierce
> > My Music from the Tandy/Radio Shack Color Computer 2 & 3
> > https://sites.google.com/site/dabarnstudio/
> > Co-Webmaster of The TRS-80 Color Computer Archive
> > http://www.colorcomputerarchive.com/
> > Co-Contributor, Co-Editor for CocoPedia
> > http://www.cocopedia.com/wiki/index.php/Main_Page
> > E-Mail: ooogalapasooo at aol.com
> >
> >
> > --
> > Coco mailing list
> > Coco at maltedmedia.com
> > http://five.pairlist.net/mailman/listinfo/coco
> >
>
>
>
> --
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