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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 +...
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Altera_Forum
Icon for Honored Contributor rankHonored Contributor
16 years ago

mbadelt,

Were you able to get to the bottom of the issue that you ran into? I am seeing similar, but slightly different behavior. In my case, I chug along at max rate on a gen2 x8 system until I have transmitted about 8kbytes of data in small 128 byte packets. At this point, I have exhausted all of my credits. I do get credit updates, but at a very low rate and only a few at a time. So, my transfer appears to complete, but it slows down dramatically after the first 8kbytes.