SO (MISO) should generally be high impedance if not selected... I suspect this c... | Hacker News

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		cozzyd on Jan 17, 2025 \| parent \| context \| favorite \| on: Investigating an “evil” RJ45 dongle SO (MISO) should generally be high impedance if not selected... I suspect this causes SO to always output the same value and the Ethernet controller must expect some magic

nick__m on Jan 17, 2025 [–]

Thanks you for refreshing my memory, I learn about that in college twenty-something years ago but never used that knowledge!

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