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Altera_Forum
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10 years ago

Arria V GX Starter Board - PHY not responding after factory reset

I am working with the web server project and am having problems with the on board PHY. The board seems to be stuck on the PHY reset. I went through the steps to reload the FLASH from factory...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
10 years ago

Hi Tiny,

The PHY is the Marvel 88E1111. It is connected to the MAC in RGMII mode.

The enet_gtx_clk signal is connected to a ddio_buffer to handle the high speed interface. It is fed by the tx_clk_to_the_tse_mac which is selected by the current mode of the MAC which can be the GbE mode at 125MHz, the 100Mb mode which is 25Mhz, or the 10 Mb mode which is 2.5MHz.

I opened the project file in Quartus v12.1sp1 and built it so that I could generate the RTL which is attached. This is all default from the development board kit.

- Kim