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HBhat2's avatar
HBhat2
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5 years ago

S-10 Transceiver IO Terminations

Hi,

I am using stratix 10 SoC dev kit with Transceivers with 10Gbps speed.

There, I want to use External termination for the transceiver receiver pins. As per the L tile user guide, we can set r_unused option in the native PHY.[Table 23. RX Analog PMA Settings Options]

I checked setting the same in Native PHY, the error message is listed saying that r_unused as invalid. What is the procedure to set external termination for receiver pins?

Also, I checked with "set_instance_assignment " commands & seeing no impact on these commands.

set_instance_assignment -name HSSI_PARAMETER "pma_rx_buf_term_sel= r_unused" -to AH45

set_instance_assignment -name HSSI_PARAMETER pma_rx_buf_term_sel= r_unused -to AL43

With Regards,

HPB

3 Replies

  • HBhat2's avatar
    HBhat2
    Icon for Contributor rankContributor
    5 years ago

    Hi,

    Quick update.

    Quartus tool is ignoring the "set_instance_assignment " constraints in the QSF file.

    "Warning(332145): Command "set_instance_assignment" found in SDC file is not a proper SDC command and is being ignored "

    With regards,

    HPB

      • HBhat2's avatar
        HBhat2
        Icon for Contributor rankContributor
        5 years ago

        Hi,

        Thanks for the suggestion. I missed this option. Will try & update.

        With Regards,

        HPB