Forum Discussion

Honored Contributor

15 years ago

Mdio

Does Altera have an MDIO core in the SOPC builder , or mega functions? I want to use the MDIO STA master to configure phy device on the board.

Honored Contributor

12 years ago

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Has anybody got MDIO master core OR code that I can import in SOPC builder please? thanks.

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Hi you can use Qsys and create a project with Nios II and Ethernet MDIO .and use this code for MDIO read and write.

// writing

IOWR_32DIRECT(ETH_MDIO_0_BASE,0x84,0x80000001);

IOWR_32DIRECT(ETH_MDIO_0_BASE,0x80,0x0000b55d);

//Reading

IOWR_32DIRECT(ETH_MDIO_0_BASE,0x84,0x80000001);

data32 = IORD_32DIRECT(ETH_MDIO_0_BASE, 0x80);