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Altera_Forum
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12 years ago

Ubuntu 13.04: Segmentation Fault during MegaWizard ALTDDIO_OUT creation

hardware: DE2-115 development board (Cyclone IV)

os: Ubuntu 13.04 64-bit

I'm trying to follow the Triple Speed Ethernet tutorial (I can't include the link, but it's "using_triple_speed_ethernet.pdf" on the Altera tutorials page) which has been without issue up until I try to create the ALTDDIO_OUT. I've launched Quartus from the terminal; when I open the MegaWizard Plugin Manager and select ALTDDIO_OUT, name the file and then click "Next", a window pops open for a moment, begins to load but exits early (Segmentation Fault printed to the terminal), and then I am returned to [page 2a].

Somebody posted something similar having issues with ALTPLL ... MegaWizard worked just fine when I generated the PLL, so I'm at a loss for why this is different. Any help would be greatly appreciated!

2 Replies

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

    I'm having this same problem. I'm running Quartus II v13.0 on a remote server. I can launch and create an ALTCLKCTRL and successfully create the megafunction.

    But I canNOT create the ALTDDIO_OUT. I get "Can't create the custom megafunction variation file(s)." error message along with an "Error in CNX file format".

    Can someone help?
  • Altera_Forum's avatar
    Altera_Forum
    Icon for Honored Contributor rankHonored Contributor
    12 years ago

    --- Quote Start ---

    I'm having this same problem. I'm running Quartus II v13.0 on a remote server. I can launch and create an ALTCLKCTRL and successfully create the megafunction.

    But I canNOT create the ALTDDIO_OUT. I get "Can't create the custom megafunction variation file(s)." error message along with an "Error in CNX file format".

    Can someone help?

    --- Quote End ---

    here's the failure sequence:

    I open a terminal window, issue this command: shell xxx/13.0/linux32

    Then issue: quartus &

    Quartus launches. I go to Tools -> MegaWizard -> Create new…. -> ALTDDIO_OUT -> enter name hit Next

    MegaWizard will not lauch.

    I get a couple of *cnx* files. My terminal window shows “Error: "Can't create the custom megafunction variation file(s)." error message along with an "Error in CNX file format".

    So I go into my desktop windows Quartus version, create the ALTDDIO_OUT function, copy the 4 verilog files (.qip, .v, _bb.v, inst.v) to my unix directory, instantiate the altddio_OUT in my Top Verilog design, hit compile, Quartus crashes/shuts down/core dump in terminal window.

    I’ve switched to “shell xxx/13.0/linux64, MegaWizard will now launch and create ALTDDIO_OUT.