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你好，请问dm648有emac loopback和phy loopback的例程吗，没有的话，有实现方法吗？谢谢
你好，
你看看下面的论坛讨论是否有帮助？
https://e2e.ti.com/support/dsp/davinci_digital_media_processors/f/99/p/231590/855167#855167
