Forum Discussion
Altera_Forum
Honored Contributor
14 years agoFirst of all make sure all PHY pins are correctly driven; in particular check reset and clock signals.
Then you can probe or Signaltap the mdio interface in order to see if PHY is "alive" and if it answers to hal driver requests. This is a simple two wire serial interface. See page 4-42 of TSE user guide for more info.