2 boards are populated with all components (except the Arduino headers on one of them). One is build up with PAL crystal, the other with a NTSC version. Also only the PAL version has the additional video driver installed, it is just bridged on the other board. Initial test showed the 3.3V power rail OK and no smoke got released.
Things to note:
- The KiCAD Arduino shield footprint has connector through holes that are very small for regular pin headers. I almost got a press-fit connection. The extra long female headers have thinner pins and are OK.
- All other footprints that I grabbed from the KiCAD libraries turned out to be correct (maybe I was just lucky ;)
- Testpoints are very helpful.
- I like silkscreen that is large enough to read without microscope.
Now the programming begins, SPI communication first and then configuration of the video output. Then the fun starts with image display functions and porting Doom.