Is anyone aware of a video frame store/graphics card that can be hooked up to an AVR? (Yes, I know, it makes no sense to do so but sometimes....)
I'm know about PiGFX which uses a Pi as a terminal emulator with some basic graphics primitives. https://github.com/fbergama/pigfx
What I'd like is...
minimum 640x480, ideal 704/720x576 (ie square pixels)
minimum 8-bit RRRGGGBB output but ideal would be 8:8:8 RGB
something like high-speed SPI access to the frame memory
it doesn't need to be intelligent, just a frame buffer would do
I could build one, I've designed plenty of them in the past. I should still have some VRAM and display controller somewhere.
I did wonder about getting an 8-bit ISA card and driving that but that all seem to be quite low res.
It's for a weird retro-computing idea I have.