VGA with STM32

[Giovanni]

I found this, it is not ChibiOS-related but still interesting, a single chip game console with VGA output: http://bitboxconsole.blogspot.in/

I imagine it is done using a DMA writing on GPIOB but I haven't examined the code yet.

Giovanni

[jscott]

Wow, just think what you could do with a STM32F429Discovery with its big external RAM!! I wonder if the LCD would get in the way....

-John

[Tectu]

Writing a VGA driver for the GDISP module of µGFX is actually on the ToDo list. I assume that this would be very useful. However it's ultra-low priority compared to other things on the ToDo list.
I got myself one of these. They have some very simple R2R-network to generate the analog voltages.
Without the required RAM, it's usually not fun to work with, because you can only write. Scrolling and other animations wouldn't be possible.


~ Tectu

[TexZK]

Demosceners already got it - at full speed Everything done with a cheap F4 Discovery board and a trivial VGA adapter (DAC)

[youtube]ymGCeG9_6c0[/youtube]

Source: http://www.pouet.net/prod.php?which=61197

[Giovanni]

Well, that is impressive. Reminds me of the early farbrausch demos: http://www.farb-rausch.de/

Giovanni