One of the most fascinating thing about working with hardware vs software is your designs are influenced by the laws of physics, but more importantly, how we ch

One of the most fascinating thing about working with hardware vs software is your designs are influenced by the laws of physics, but more importantly, how we choose to implement our understanding of these laws. I've gotten away with quick and dirty prototypes with no length matching but always keeping the two traces as close to each others' path as possible with as few vias as possible (even avoiding if able), but other times you need to get it right as I suspect that some chips are more robust than others with their signal processing. For CAN bus and PCIe, you can use garbage routing and tin foil to connect your diff pairs, but for HDMI, you better get that right or suffer random, intermittent problems forever.