P4080 internal loopback test

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P4080 internal loopback test

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ali_baspinar_el
Contributor I

Hey, i see a problem sometimes which is "couldn't get PHY for P4080DS_MDIO0 addr0 failed to connect" error. and ethernet not working at all. is it logical to make loopback test in processor and how?

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Pavel
NXP TechSupport
NXP TechSupport

Ethernet PHY supports loopback mode. For example see the VSC8244 Data Sheet:

http://ww1.microchip.com/downloads/en/DeviceDoc/VMDS-10108.pdf

 

The P4080 SERDES does not support loopback mode.


Have a great day,
Pavel Chubakov

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