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Altera_Forum
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16 years ago

Ethernet MAC/PHY (LAN91C111) with Stratix II

Hello everybody,

I’m a French student in electronics engineering.

I’m trying to use the Ethernet MAC/PHY (LAN91C111 device) IP with Nios II but I have some problems with the pins assignments in Quartus II software (v9.0).

My board is a stratix ii with ep2s60f1020c3 FPGA.

Can you tell me why I can’t find the System Control Bus pins T20, T21, T25, T26 and V26 indicated in the stratix ii dsp development board reference manual when I use the pin planner of Quartus for ep2s60f1020c3 FPGA?

Can you tell me what other pins assignments I could make for these pins?

Thanks in advance.

Cordially,

Samson Bossé.

3 Replies

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

    Don't trust Altera's documentation for the pins assignments, it seems to be wrong (it's not the first time, unfortunately).

    Have a look at the schematics to find the correct pins instead. From what I'm seeing (I hope I found the correct schematic on the net), those are the correct assignments:

    [list][*]ENET_DATACS_N: AB24 instead of T20

    [*]ENET_IOCHRDY: AB25 instead of V26

    [*]ENET_LDEV_N: AA24 instead of T26

    [*]ENET_SRDY_N: AA23 instead of T25

    [*]ENET_W_R_N: AE27 instead of T21[/list]

    You should check all the other pins too, you never know what other mistakes they made in their documentation...
  • Altera_Forum's avatar
    Altera_Forum
    Icon for Honored Contributor rankHonored Contributor
    16 years ago

    --- Quote Start ---

    Don't trust Altera's documentation for the pins assignments, it seems to be wrong (it's not the first time, unfortunately).

    Have a look at the schematics to find the correct pins instead. From what I'm seeing (I hope I found the correct schematic on the net), those are the correct assignments:

    • ENET_DATACS_N: AB24 instead of T20

    • ENET_IOCHRDY: AB25 instead of V26

    • ENET_LDEV_N: AA24 instead of T26

    • ENET_SRDY_N: AA23 instead of T25

    • ENET_W_R_N: AE27 instead of T21
    You should check all the other pins too, you never know what other mistakes they made in their documentation...

    --- Quote End ---

    Thanks Daixiwen for answering so quickly but where have you found the schematic for EP2S60F1020 ???

    I'm looking for it on the internet but I can't find it anywhere .

    Please send me the link or give me the file at "sbosse at isep.fr"

    Thanks in advance.