[Coco] CoCoFEST! Challenge: CoCo DMA

[Joel Rees]

On Tue, Mar 24, 2020 at 10:46 AM RETRO Innovations
<go4retro at go4retro.com> wrote:
>
> On 3/13/2020 9:04 AM, RETRO Innovations wrote:
> > On 3/5/2020 8:11 PM, RETRO Innovations wrote:
> >> On 3/2/2020 7:30 PM, RETRO Innovations wrote:
> >>> On 3/2/2020 7:29 PM, RETRO Innovations wrote:
> >>>> http://www.go4retro.com/2020/02/26/direct-memory-access-possibilities-on-the-tandy-color-computer/
> >>>>
> >>>>
> >>> http://www.go4retro.com/2020/02/28/coco-dma-early-efforts/
> >>>
> >> http://www.go4retro.com/2020/03/05/coco-dma-fighting-on-the-bus/
> >>
> > http://www.go4retro.com/2020/03/12/coco-dma-invisible-ram/
>
> http://www.go4retro.com/2020/03/23/coco-dma-missing-without-a-trace/

While we're playing with traces, what do you think of modifying the
cartridge interface with a permanently attached multipak interface? A
second set of fingers off to the side, or such.

New redesigns of the the mainboard could include a cardbus that
somehow brings the bus state bits out, too.

Or leave the original card connector in place and add a second set of
four slots with a more complete cardbus.

Hmm.

-- 
Joel Rees

http://reiisi.blogspot.jp/p/novels-i-am-writing.html