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Altera_Forum's avatar
Altera_Forum
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14 years ago

PCIe hard IP in Qsys bar0 or bar1_0?

Which is the bar used for PCIe hard IP in Qsys?

Why all the documents says bar0, while the Qsys diagram shows "bar1_0"?

Is "bar1_0" equal to bar0, or is it bar1?

Thank you very much!

1 Reply

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

    --- Quote Start ---

    Which is the bar used for PCIe hard IP in Qsys?

    --- Quote End ---

    Whatever BARs you set up.

    --- Quote Start ---

    Why all the documents says bar0, while the Qsys diagram shows "bar1_0"?

    Is "bar1_0" equal to bar0, or is it bar1?

    Thank you very much!

    --- Quote End ---

    When BAR0 is defined as 64-bit, BAR1 gets 'used up', so bar1_0 really just means a 64-bit BAR0.

    Cheers,

    Dave