[Coco] First impression of Roy's adapter.

Mark McDougall msmcdoug at iinet.net.au
Tue Apr 11 19:16:29 EDT 2006

RJRTTY at aol.com wrote:

> Yes,  the adapter is using 640x480 mode.  Actually,  the exact specifications
> are 680x452.   This includes the sync  polarity and timings.  THere is
> a considerable border in 32 column mode  but much less of one
> in the 40 and 80 column modes.

OK, thanks for the info! Since I'm dealing with the Coco 1 (6847) only (at 
this point) I'm stuck with the borders for all modes - at least if I want to 
use scan-doubling for composite/VGA. An earlier VGA-only version didn't have 
this 'feature' and looked very nice indeed!


|              Mark McDougall                | "Electrical Engineers do it
|  <http://members.iinet.net.au/~msmcdoug>   |   with less resistance!"

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