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

[Walter Miraglia]

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?
> 
> 
> -- 
> Coco mailing list
> Coco at maltedmedia.com
> https://pairlist5.pair.net/mailman/listinfo/coco