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JShel4's avatar
JShel4
Icon for New Contributor rankNew Contributor
7 years ago

Help with 10G Ethernet Configuration

Newbie question on 10G Ethernet configuration. I have Arria 10 FPGA sitting between the SFP+ optical module and 10G backplane connector (i.e. SFP+ --> FPGA --> backplane). What is the easiest way f...
Deshi_Intel's avatar
Deshi_Intel
Icon for Regular Contributor rankRegular Contributor
7 years ago

Hi JShel4,

Yes, it will auto down trained from 10G to 1G if link can't maintain at 10G.

I presume you are referring to CDR loose lock condition when you mentioned lock_to_data is toggling. This normally is caused by signal integrity concern.

You can refer to attached debug checklist to get some clue on where to debug. Although this debug checklist is created for Cyclone 10 FPGA but the debug flow is the same.

Thanks.

Regards,

dlim