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qwitza's avatar
qwitza
Icon for Occasional Contributor rankOccasional Contributor
3 years ago

Calculate skew timing with Cyclone V and ksz9031

hello, i have troubles with the ethernet bandwith and retransmissions (ack). after some diagnostic i think it is an timing issue. the wire length from the fpga -> knz9031 is: mil ...
  • qwitza's avatar
    qwitza
    Icon for Occasional Contributor rankOccasional Contributor
    3 years ago

    Hi,

    thanks again for your answer, but the skew parameter tool is only for the memory interface.

    there is no option for the cyclone v and no option for the rgmii interface.

    also it considered not the https://www.intel.com/content/www/us/en/support/programmable/articles/000079123.html from the cyclone v and the rgmii interface.

    i thought there is an intel employee who know how to calculate the desired skew values for the rgmii interface? all neccessary information at post #1.

    thanks again