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2269108_zh-CN
2269108_zh-CN
大家好
我尝试用Eth_43_GMAC_ReadMii 函数读取 LAN 9646 的 PHY 地址，但返回的结果出乎意料。我只想问，这个功能是否适合用于读取 PHY 地址。感谢您的阅读。
您好，
是的，Eth_43_GMAC_ReadMii 是使用第 22 条通过 MDIO 读取 PHY 寄存器的函数。
不清楚您在函数中使用了哪些参数，以及得到了什么读数。确保使用设备数据表中指定的正确的 PHY 和寄存器地址进行标准 MIIM 寄存器（直接）访问。
还要确保选择了 MIIM 接口，根据设备 DS，它不是默认接口，而是通过捆绑选项配置的。
BR, Petr
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