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DP83826E: DP83826通讯异常

小白菜
Prodigy 50 points
Part Number: DP83826E

你好，请教工程师们一个问题，我现在是用F28P65DK7和DP83826进行通讯，我采用的是模拟MDIO协议对PHY进行寄存器配置，但是不论设置什么寄存器地址。数据读回来都是同一个值。请问这是什么原因导致的呢？

（注：我用另外的产品F28385D是能正常通讯上的，所以我的驱动程序应该没问题）