“And I realize that this is what VGA is, but it’s so, so funny to me that the protocol is literally just the manifestation of a physical design that is largely obsolete.”
A deep hardware dive into building a USB display adapter for a vintage arcade CRT. Stephen went through multiple chip failures before landing on a working design. The RP2040’s USB was too slow. The STM32H723’s “USB High-Speed” turned out to require an external PHY chip buried in the datasheet fine print. First PCB had a ground short from a missed via. Classic hardware project where everything that can go wrong does.