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Altera_Forum
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16 years ago

PCIe Transmission Problem

Hi, I have the Altera Stratix II GX Dev Board. Im' using the Altera PCIe 9.0 IP Core with Avalon-ST Interface and I ran into some problems. I transfer 4 MB of data in 128 Byte blocks +...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
16 years ago

Just in case you are still struggling with this problem, and to inform others who might expierence a similar problem.

The PCI Express specification states that when a malformed TLP is received, flow control information does not have to be updated. Therefore after a few malformed TLPs the transmitter will run out of credits, blocking any further transmissions.

You should check if the TLPs you are sending accord to the specification.