Measuring USB signal and decoding the USB protocol is easier than I thought (but you may need a decoder). Thank you very much to Gregor Hofferbert
Links:
– Teledyne LeCroy: https://teledynelecroy.com/usb-electrical-test/#usb2
– Is the USB you designed perfect? This is how you test it … | Gregor Hofferbert https://youtu.be/q6fhmTL-Sgo
– Long vs. Short USB Cable – How much worse the signal looks if a long USB cable is used? https://youtu.be/M6dVOnISySc
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