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AM335X 双网口与GPMC的管脚冲突



U17管脚:GPMC的WPn与 GMII2的RXER实在是分不开了。

1)WPn是否可以不要?或者另外分配一个GPIO代替?手册没有这方面的说明

2)或者RXER不要了?有些MAC在RMII下面就是不要这个管脚

请问如何解决?