[Coco] S-video Prospects...

[Gene Heskett]

On Thursday 26 January 2006 15:06, George Ramsower wrote:

>>> Yep, there's the "missed HSYNC" problem for the first scanline.

>>

>> I think the simplest way to generate a new (earlier) HSYNC  would be

>> to simply use the existing HSYNC pulse to start a timer and when the

>> timer finishes, to generate a pulse. On the next incoming HSYNC,

>> simply reset again.

>>

>> This would make a new HSYNC that starts a bit before the original,

>> and ends

>> right at the moment that the original starts.  That should probably

>> result in shifting the 80 column display about 4 characters to the

>> right.

>>

>>                                         John Kowalski (Sock Master)

>>

>> http://www.axess.com/twilight/sock/

>

> Wouldn't the newly generated sync pulse still arrive after the first

> line? After all, the timer has to have the first one to delay the

> pulse into the next line.


The coco3 puts out seperate syncs, so the hsync is continuous even 
during vsync.  Ergo no problem.

-- 
Cheers, Gene
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