I carefully checked the logic analyzer again, and the LA of Raspberry Pi 4 is as follows：

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The logic analyzer of Raspberry Pi 5 is as follows：

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Waveform analysis
Raspberry Pi 4
CLK (pink) idle state: low level
Only generate pulses during transmission

Raspberry Pi 5
CLK (pink) idle state: high level
This is clock polarity reversal

May I ask why the above phenomenon occurs? After that, the Raspberry Pi 4 is normally enumerated, while the Raspberry Pi 5 is not。