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C6678与PHY芯片88E1112之间的初始化过不了?

Other Parts Discussed in Thread: PCA9306

目前,我们设计了一个板卡,第一块板子C6678与PHY芯片88e1112之间的初始化,通信都是可以没有问题的,但是第二块板子C6678与PHY芯片之间的初始化始终过不去?请问各位大神,这种情况下应该如何解决??两块板卡焊接的都一样。多谢!!