More standard VGA modes

[thedrip]

Is it possible to implement a more standard VGA mode like 640x480@60.

For testing purposes really, I have two monitors that aren't supporting either mode. Oscilloscope readings of the vertical and horizontal sync look correct for both resolutions, as does the dot clock on the color lines.

I'm out of Monitors to try!

Thanks

[konimaru]

https://github.com/konimaru/waitvid.2048/tree/master/480p
Although I don't expect any issues, please try it beforehand (e.g. grab the archive and run the demo).

[thedrip]

It worked great. My issue was that I re-spun the board from schematics and got Hsync and vsync backwards.

Works great, including in the 640x480 and 720x480 modes!