RT1061 Dual Ethernet MDIO Interface Questions

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RT1061 Dual Ethernet MDIO Interface Questions

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2548903578
Contributor III

   When using dual network ports, must ENET_MDC, ENET_MDIO and ENET2_MDC, ENET2_MDIO be connected to two PHYs respectively?
I now use ENET_MDC and ENET_MDIO to connect two PHYs in parallel, and distinguish them by PHY address. The result is that PHY2 has never been initialized, or it is stuck in the initialization process.

  The phy register address 0x02 read in the PHY_KSZ8081_Init() function using network 2 is always 0, while network 1 is normal. Here, the MDIO interface shared by network 1 and network 2 is in network 1, and the MDIO interface is not configured on network 2.

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Hui_Ma
NXP TechSupport
NXP TechSupport

Hi,

Due to NXP RT1060 EVK only provides one ENET design, I would recommend customer to refer ForLinx OK1061-S board dual ENET design, which using two ENET PHYs:

Hui_Ma_0-1663233516173.png

Wish it helps.

Mike

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