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Occasional ContributorE-tile automatic adaptation issues
HI,
If you want to learn how Etile PMA adaptation flow works, then pls checkout below user guide (page 210, 211)
Else you want to see how E-tile Hard IP control the adaptation flow, kindly refer to page 109 of below doc
Like wise, you can also checkout E-tile hard IP example design directly for the design implementation example
Thanks.
Regards,
dlim
Occasional ContributorSome additional details: I have tried both "single 10GE/25GE" and "1 to 4 10GE/25GE with optional RS-FEC" and have so far seen the same results. RS-FEC and AN are disabled, with AN enabled not only do I not get a link, but the system console does not want to talk to the MAC. Under PMA adaptation I have selected NRZ_10Gbps, which sets GS1 = 2, GS2 = 1, RF_B1 = 5 fixed, RF_B0 = 1 fixed.
After loading the design on the FPGA and connecting to it with the system console, the MAC reports HI-BER and the receiver adaptation settings are GS1 = 0 adaptive, GS2 = 0 adaptive, RF_B1 = 0 adaptive, RF_B0 = 0 adaptive. If I select "10G-NRZ" on the MAC and click apply, HI-BER goes away, the NIC reports that the link is up, and the receiver adaptation settings are GS1 = 0 fixed, GS2 = 1 fixed, RF_B1 = 5 fixed, RF_B0 = 1 fixed. So it's not quite the same as what the PMA adaptation tab in the parameter editor lists, but the connection works.
The question is why: is there something that I need to do to trigger the adaptation load soft IP to do its thing and configure the transceiver with the proper settings? I have not found anything in the documentation about this.
