Re: PCIe IP with 2 VCs, Vendor ID only on VC0?

Altera_Forum · ‎06-19-2013

Hi All,

I have a designed an SOC with a PCIe RootPort. It works fine. I just changed the PCIe IP to a 2 VC version.

As a simple test of the second VC I tried to read the vendor's ID but I get no response from the IP. It responds

fine on the first VC. Is that the way it supposed to work? I get the same results in simulation.

Any ideas?

Thanks,

S.

Altera_Forum · ‎05-26-2014

We have been working on a similar concept and found that tx credits are not issued by Altera's IP for second VC. Hence, IP is not ready to receive tlp's on second VC.

Altera_Forum · ‎06-25-2015

VC1 is not supported. The PCIe core only supports 1 Virtual Channel (VC0).