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我画的以太网接口总是不能使用,很困惑,用的是EK-TM4C1294的原理图做的参考,电路反复对过了,甚至把开发板的相关元器件解焊下来也试过了,主要区别我能想到的就是我用两层板做的,请问大家有什么方法可以解决此问题啊,痛苦
