[Coco] Coco 3 pixel clock

[Mark McDougall]

Christopher Hawks wrote:


> It looks great (with my Hsync delay circuit to center 

> it), but appears to be missing about every eighth dot on the screen. If 

> I move the display horizontally, the missing dots change so I suspected 

> it is a difference in pixel clock rates. This occurs in all resolutions 

> (640, 320, and 256).


If you _really_ wanted to, you could probably implement a pixel-clock 
converter with a CPLD and some video RAM as a line buffer... there might be 
a simpler way (I'm no video guru) but that's how you'd do it inside an FPGA...

Regards,

-- 

|              Mark McDougall                | "Electrical Engineers do it

|  <http://members.iinet.net.au/~msmcdoug>   |   with less resistance!"