This PCB is relevant to the project because AXIOM Beta can send pretty much any data over an HDMI connection because the camera generates HDMI content inside its onboard FPGA. The problem is we don't control the HDMI receiver side - meaning recorder manufacturers do all kindS of strange things with the image (sharpening, color conversions, etc.) and in general only support very specific resolutions/framerates. There is also no standards for HDMI.
With the Elgato CAM Link 4k it's now possible to take over control of the receiver side.
This opens up a whole world of possibilities with regards to what data could be packed into the HDMI "frame" if it's used as a data container.
It is reported to be an 8 layer PCB. Probably atleast a 2-3+ HDI.
Pinout Mapping (WIP):
a dump of the SPI communication (and the decoded flash data) can be found here: