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TMS570LC4357-EP: TMS570LC4357 LWIP

Part Number: TMS570LC4357-EP
Other Parts Discussed in Thread: TMS570LC4357, DP83640

我在TMS570LC4357上移植LwIP,在Hal code Generator上选择了DP83640作为PHY芯片,想问一下,EMAC、MDIO、PHY以及LwIP的关系.

是LwIP组好协议数据包,发给EMAC和MDIO,然后EMAC和MDIO的驱动层将数据发给PHY,PHY将电气信号转换发送出吗?是这个过程吗?

那EMAC和MDIO的具体功能是什么呢,还有实际单板上他们的硬件连接是怎么样的呢?每个模块有哪几根线相连?

多谢指导!