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cozzydyesterday at 11:13 PM1 replyview on HN

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


Replies

nick__myesterday at 11:21 PM

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