Forum Discussion

Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
14 years ago

Does the Triple Speed Ethernet IP Core support RMII

Hi everyone,

i have a question concerning the Triple Speed Ethernet IP Core.

Is it possible to connect the TSE MAC and the PHY with RMII interface?

Because i found the TSE MAC isn't compatible with RMII at all. But maybe there is a solution to make it compatible.

I use the DB4CGX15 Cyclone IV GX Dev.Board. and its DB4CGX-PHY2 Addon Board, which only supports Ethernet connection with RMII.

Thank you

8 Replies

  • Altera_Forum's avatar
    Altera_Forum
    Icon for Honored Contributor rankHonored Contributor
    14 years ago

    Thank you very much Cris72, i will try your code for converting both interfaces.

    But somehow i made it now to transmit and receive raw ethernet packets with "Ostinato", but i have to check if the data being received is correct.

    I use the RGMII interface, which didn't work the whole time. Somehow strange.

    Thanks again

    herby
  • Altera_Forum's avatar
    Altera_Forum
    Icon for Honored Contributor rankHonored Contributor
    14 years ago

    AFAIK DB4CGX_PHY2 addon features a 10/100Mb PHY, while RGMII is for Gigabit.

    Probably it can be also connected to 10/100Mb, since you are using it. Anyway, implementing it in a MAC which actually doesn't need Gb means you waste fpga resources.
  • Altera_Forum's avatar
    Altera_Forum
    Icon for Honored Contributor rankHonored Contributor
    14 years ago

    Hi Guys,

    Im using a external phy Micrel KSZ8051 and Im having the same issue.

    Could anyone help me?

    The mii to rmii has worked?

    Im tryed it but I dont really have good results.

    I appreciate any help,

    Thanks in advance!

    Emanuela
  • Altera_Forum's avatar
    Altera_Forum
    Icon for Honored Contributor rankHonored Contributor
    12 years ago

    --- Quote Start ---

    Hi Guys,

    Im using a external phy Micrel KSZ8051 and Im having the same issue.

    Could anyone help me?

    The mii to rmii has worked?

    Im tryed it but I dont really have good results.

    I appreciate any help,

    Thanks in advance!

    Emanuela

    --- Quote End ---

    Have your problem solved?I have the same issue with you,could you help me?
  • Altera_Forum's avatar
    Altera_Forum
    Icon for Honored Contributor rankHonored Contributor
    12 years ago

    --- Quote Start ---

    Thank you very much Cris72, i will try your code for converting both interfaces.

    But somehow i made it now to transmit and receive raw ethernet packets with "Ostinato", but i have to check if the data being received is correct.

    I use the RGMII interface, which didn't work the whole time. Somehow strange.

    Thanks again

    herby

    --- Quote End ---

    can you send your program with me?
  • Altera_Forum's avatar
    Altera_Forum
    Icon for Honored Contributor rankHonored Contributor
    12 years ago

    have your problem solved,I confused witn the interface mii to rmii for a longtime

    waiting for your apply !thank you