[Open-graphics] Open exercise in developing test logic (video)

[Simon Persson]

Hi!

> So, to begin with, how about someone give me the raw timing numbers
> for, say, 800x600 at 60.  Shortly, I'll provide a module header for the
> video pins on the two interfaces.

At the job I had this summer I played around with a virtex-II pro and tried to 
make a video controller and got something that seemed to work.
The xilinx example files had the timing numbers needed. From there:

// 800 X 600 @ 60Hz with a 40.000MHz pixel clock
`define H_ACTIVE		800	// pixels
`define H_FRONT_PORCH	40	// pixels
`define H_SYNCH			128	// pixels
`define H_BACK_PORCH	88	// pixels
`define H_TOTAL			1056// pixels

`define V_ACTIVE		600	// lines
`define V_FRONT_PORCH	1	// lines
`define V_SYNCH			4	// lines
`define V_BACK_PORCH	23	// lines
`define V_TOTAL			628	// lines

Would the rest of the video controller be useful? Just thinking that something 
simpler than the one in svn could be useful for testing.

Regards,
Simon



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