VGA using 8 bits RRGGBBII + HS & VS = 10 pins - Discussion....

Cluso99

Phil, specifically will the extra I0 & I1 bits give a much improved display?

Phil Pilgrim (PhiPi)

Cluso99 wrote:

Phil, specifically will the extra I0 & I1 bits give a much improved display?

I believe it will. The 16 gray levels alone is a big improvement over four grays. Add to that the subtle midtones, and I think it's worth pursuing.

-Phil

pedward

Is someone going to whip together a proof of concept and actually test this, or are we still bench racing?

Cluso99

I am just deciding whether to put it onto my next design. It seems to be worth the trouble, so provided it fits it will be on the board. I will provide solder links to select between old and new (not meant for interactive changing).

pik33

Yesterday I got a quickstart board. It seems to be easy to add a vga connector to its connector and see what it can do.

I am interested in this rr-gg-bb-ii and ggggggss-rrrrbbbb. so I will experiment with this. Free time needed... I haven't a lot of it.

Roadster

I used a different circuit that has jumpers to switch between 6 bit and 8 bit and got it working here's the link http://www.gadgetgangster.com/forums/viewtopic.php?f=1&t=875

Roadster

here is another interesting way to do RRGGBBII, 64 colors with 4 shades = 256 colors
http://www.lucidscience.com/pro-vga%20video%20generator-2.aspx

Cluso99

Roadster now has a working demo in this thread...
http://forums.parallax.com/showthread.php?141143-VGA-256-Colors
Nice work Roadster