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Altera_Forum
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13 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!
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
13 years ago

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

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Whatever BARs you set up.

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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!

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

Cheers,

Dave