Dragon 32/64 - TRS 80 Colour Computer Hybrid

[TheCorfiot]

Latest Prototype system

This is a standard Dragon 32 which has been upgraded to 64K of RAM and modified to behave as a Dragon64 except for 48K Basic.
Can use OS9 etc.
It can be switched to a 64K TRS 80 Colour Computer 2 with full Software compatibility....

Left to do is Automatic Keyboard remapping when COCO mode is selected... circuit being built

Shown here running with Prototype RGB Colour Board - Best image yet on Dragon or COCO..

Want to know more?, drop us a PM


UPDATE --- I built a little rewire dongle to place between the keyboard and motherboard just for test purposes and can confirm that the COCOSDC works perfectly with this beast in COCO mode...time to build the auto switching electronic version now

 

[tokyoracer]

Very nice, far better than having two bulky machines! Not to mention the Dragon keyboard is far better than the Tandy.

 

[Sardine]

Very nice, far better than having two bulky machines! Not to mention the Dragon keyboard is far better than the Tandy.

I wouldn't swear like the in front of Thecorfiot



that looks great buddy, can it be done with a dragon 64 and keep 48k basic and dragon roms for rs232 support (not that i would needit but its on the pcb) ??

 

[fatbob_gb]

Definitely looks interesting - I have a spare Dragon 32 that might be in for a bit of an upgrade.

 

[tokyoracer]

I wouldn't swear like the in front of Thecorfiot

He's never used an early CoCo II keyboard than, it's bloody aweful!

 

[Bryce]

Cool project bas. Where's the "I'm impressed" imoticon?

Bryce.

 

[BloodyCactus]

...

 

[TheCorfiot]

Sardine....yes indeed

Thanks for the kind words guys.
Will be ready to offer upgrades in a weeks time for those who would like a hybrid

 

[TheCorfiot]

Dragon 32/64 - TRS 80 Colour Computer Hybrid - Update



The Prototype is now complete and working as planned

You can see the Keyboard Remapper prototype board fitted to the Testbed Dragon and it's associated wiring.
Fully tested in Dragon Mode and COCO mode including Joystick operation...

If you have a Dual programmed CoCoSDC cartridge then the hybrid supports both SDC modes with 100% compatibility.

Parts on Order, If you are interested in this upgrade, or makeover lol, then please get in touch smile emoticon

Thanks for all your support and words of encouragement.

 

[xpress]

is this still a thing?? if not are the files avable?? thanks