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DP159用于displayport retimer,但是DP159无法输出时钟

使用DP159作为displayport retimer。参照的设计是Xilinx displayport ZCU102参考设计。

原理如如下所示:

我严格按照slla358.pdf来进行配置。完成后,对寄存器进行检查结果如下:

用示波器测量DP159的AUX_SRC输出,发现没有时钟输出。