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DS90UB983-Q1: 984显示没有有效frame

Part Number: DS90UB983-Q1

配置完984及983寄存器之后,debug发现984的0x54寄存器bit1显示 0 (0 : No valid FPD-Link frame detected)

请问这种状态需要排查哪些方向的问题。

x 出现错误。请重试或与管理员联系。