Little doumentaion issue :) Love the presto, very nice bit of kit.

Because of how the palette index is used to create the address of the palette entry in the PALETTE PIO the palette has to be aligned on a 1024 byte boundry. This fact needs to be added to documentation.

For anyone else having palette mode issues, you need to do the following.

uint32_t palette[256] attribute((aligned(1024)));

Thanks. :)