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Altera_Forum
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10 years ago

Transmitting frames with Triple-Speed Ethernet MegaCore over Ethernet/RGMII

Hello, I'm working with Quartus II, and had implemented the Triple-Speed Ethernet Megacore. I simulate my design with ModelSim Altera Starter Edition. My hardware is the BeMicro CV A9 with ...
Altera_Forum's avatar
Altera_Forum
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10 years ago

You must ensure that both the TSE and the PHY are in 100 MBit/s mode. There is a register to set in the TSE (and/or an external signal, depending on your project) to force the 100 MBit/s mode, and also some MDIO registers to set in the PHY chip to prevent Gigabit/s autonegotiation. Check the datasheet. I'm not familiar with that PHY or that board, but in addition you may have to switch to an MII interface instead of RGMII.