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Altera_Forum's avatar
Altera_Forum
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14 years ago

PCIe reference design does not work on various Dell platforms

I have been trying to get the Arria II GX development board running with the PCIe reference design, and I'm losing the will to live. It appears to work fine in a Dell XPS-730 machine, but it do...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
14 years ago

Is there a list of compatible chipsets? My question would be, why isn't it compatible with all chipsets within the PCIe specification?

I spent some time with a protocol analyser looking at what is going on. I found that, in some machines, the Altera FPGA never transmits TS1 traning sequences. This, in turn, causes the motherboard to go into compliance mode and transmit compliance messages.

From this I would deduce that the PCIe core is not 'detecting' the receivers on the motherboard for whatever reason. Maybe there's a way to force detection by hacking the PCIe core?