[Coco] CoCo Model 1 Cartridge Port

Charles Hudson charles484 at twc.com
Thu Dec 23 13:13:47 EST 2021


I recently upgraded the motherboard ROMs to CB 1.4 and ECB 1.1. But I 
saw on Ian Mavric's site a "universal"  ROM that includ extra commands 
(and maybe a bug fix or two) and was wondering if that could be fitted 
to my controller.  Odds are that the hardware changed from CC1 to CC2 or 
CC3.

On 12/23/2021 8:40 AM, Michael Miller wrote:
> I may be wrong here, but my understanding is that you need to update the ROMs in the actual computer to get DECB 1.1. The Disk Controller ROM just "expands" by adding a handful of commands.
>
> -----Original Message-----
> From: Coco <coco-bounces at maltedmedia.com> On Behalf Of Charles Hudson
> Sent: Thursday, December 23, 2021 7:12 AM
> To: coco at maltedmedia.com
> Subject: [Coco] CoCo Model 1 Cartridge Port
>
> On to the cartridge port, which seems workable.
>
> Verified that the Deluxe RS-232 Program Pak (Cat. 26-2226) can be invoked with "Exec &HC000"; I/O TBD.  Got modems and cables, need to find / create a driver.
>
> Also verified same for Disk Controller (Cat. 26-3022) which boots up with the message "Disk Extended Color Basic 1.0".  I have the disk cable, a drive and blank disks but no software.  End-to-end communication yet unproven.
>
> I think there are later ROM versions used with (some version of) the disk controller; can they be used in this cart?
>
> -CH-
>
>
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