11-18-2019 01:10 AM - edited 11-18-2019 01:45 AM
it is essential to initialize the phy chip or not? where the axi_ethernet ip core initialize the phy chip?
11-19-2019 01:00 AM
Hi @microchip_zhang ,
The PHY initialization is normally done in the source codes. I'd recommend to look at SDK LWIP example designs and run the application on one of our evaluation boards. Here is also an AR to use LWIP when the PHY is not supported out-of-box:
11-19-2019 01:03 AM
It depends on what you want to implement in the PHY layer. If the default config of the PHY chip are acceptable to your design then you don't change else you should.
An Ethernet MAC can configure PHY chips over the MDIO/MDC interface. A simple state machine can do that before you rx or tx frames using the PHY.