搭建EMACloopback例程,测试通过。但无意中发现sgmii的link status是0。也就是说自协商并没有成功,链路没有建立。是phy芯片的问题吗?我看例程里说的都是phy芯片88e1111,但板子上是88e1112,这两种型号的phy在配置方面有区别吗?
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搭建EMACloopback例程,测试通过。但无意中发现sgmii的link status是0。也就是说自协商并没有成功,链路没有建立。是phy芯片的问题吗?我看例程里说的都是phy芯片88e1111,但板子上是88e1112,这两种型号的phy在配置方面有区别吗?