[Coco] [Color Computer] Question about the CAT 26-3129 disk controller cart

[Walter Miraglia]

Well my Tandy 1000 TL arrived today at my office, but because i had to
carry a bunch of stuff home already, I decided to leave the TL at the
office, and instead, Harvest 2 of it's many 64k x 4 ram chips to complete
my COCO 2 upgrade.  ( I will replace the two when i get a chance to locate
some, i have had a couple offers already so I may be fine :) ) at any rate
now i have a COCO 2 with 64K ram, extended color basic 1.1 and color basic
1.3, a disk interface, and two drives.  I opened both drives up and checked
to see if I could combine them but the drive in the FD 500 is a little
funky in that i dont think the floppy cable will reach both... I'm already
bored of swapping disks... :)

Ok so now I'm creating a serial cable to attach my COCO 2 to my pc so i can
create disks from images, or load them directly into memory...   Lots of
stuff still to do... :)
hoping to get a COCOSDC interface once I hear back from Zipster. :)

lots of fun :)   now i just have to mess around with basic ... :)  (My
Tandy 1000ex is giving me dirty looks and feels abandoned... )

On Mon, Aug 31, 2015 at 10:16 PM, Walter Miraglia <walter.miraglia at gmail.com
> wrote:

> Thanks folks.  Next project is to find some 64k x 4 ram chips.   Thought I
> could snatch 2 from my 64k vdram commodore 128 color upgrade but they were
> soldered into the little expansion board.  :0)
>
> I shall keep looking around the house.  He he.
>
>
>
> > On Aug 31, 2015, at 10:06 PM, Black Wolfe blackwolfe at charter.net
> [ColorComputer] <ColorComputer at yahoogroups.com> wrote:
> >
> > Disk Basic requires Extended Basic to be present.
> > Bruce W.
> > ===============
> >
> >
> >> On 08/31/2015 08:13 PM, waltermi at rogers.com [ColorComputer] wrote:
> >>
> >>
> >> I purchased a disk drive FD 500 and 26-3129 controller. I was able to
> test them at VCFMW and they both worked great (thanks again guys).  I
> brought them home. Then I unpacked my recent eBay purchase and set it up.
> It powered up and all keys work.  ( a COCO 2 ) with 16 k ram (expandable to
> 64 with 2 64x4 ram chips)  version  1.3 basic in the standard 8 k rom (but
> switchable to 16k because the rom socket on the motherboard is 28 pin).
> >>
> >> I plugged in the controller and the boot message at the top of the
> screen did not indicate disk basic like it did when we tested it at the
> show.    I cleaned the contacts on the cartridge port and cleaned the
> contacts on the cartridge but no luck.
> >>
> >> I think I remember Neil saying I would need extended basic roms before
> the disk basic would work.  Can anyone confirm this?   I was going to burn
> a 16 k 27128 this evening as soon as I find the file and then change the
> jumper setting on the board to 128k.
> >>
> >> The testing was all done with COCO 3's at the show, mine is a COCO 2
> with 16k ram and 8k rom.  I am hoping to get a COCO3 soon.  I know this
> cart does not require 12 volts as it worked fine in the COCO 3.
> >>
> >> Unfortunately I don't have another cart or game cart to test with to
> verify its not the COCO 2 with basic 1.3.
> >>
> >> Help?  :0)
> >>
> >>
> >> Do i need extended basic 1.1 in order to use the disk cart?
> >
> >
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