[Coco] Trying to understand Cart Usage on Coco3

[RETRO Innovations]

On 8/23/2015 4:15 PM, Robert Gault wrote:
> Duhh, my mind must be going. :)
>
> On a Coco3 you must force ROM mode before attempting to read the 
> external ROM. So, first POKE&HFFDE,0 and then try to read the Typing 
> cart; ?PEEK(&HC000).
Thanks, that helped a lot.  I can see the Typing Tutor ROM, but mine is 
not behaving.  Debugging now.