[Coco] Disto SC add-ons

[Art Flexser]

On Tue, 30 Dec 2008, Benoit Bleau wrote:

> Roger Taylor wrote:
> > Does anyone know how in the heck the addon with the video chip is 
> > supposed to output video or how it works?  The board also has a clock 
> > chip which seems to be running even though the board is old.. you can 
> > PEEK from BASIC and see the clock registers changing.  I do have the 
> > register specs on the clock.  The video chip is a CRT9128. There's an 
> > 11mhz crystal, HM6116LP-2 chip, 13x2 header, and 2x2 header.  I see no 
> > other ID marks on the board other than the word "Disto" and two color 
> > stickers on the back labeled "M" and "T".
> >
> > I see nothing in the Disto SC docs explaining the details of this 
> > board, just a mention that it's one of the add-ons.
> if I recall, I had one of these boards 15 years ago?  and it worked only 
> with OS9. It required a driver to be installed.
> I returned it to CRC computers, because it had a horrible wobble in the 
> image.

I'm pretty certain that it also worked under Basic, and came with a driver for
Basic, along with a manual that explained its registers.

Art