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Altera_Forum
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11 years ago

Failed to Enumerate Stratix IV GX FPGA Development PCIe Board on PCIe 3.0 Bus

I have one Altera Stratix IV GX FPGA Development Board (PCIe based) and want to develop Altera PCIe Linux Custom PCI Driver to access Memory Read/Write Operation (SGDMA) through that PCI driver. ...
Altera_Forum's avatar
Altera_Forum
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11 years ago

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Sounds like you had a good idea to download the .sof in BIOS mode ... there is an inherent race condition if the FPGA has to load and be ready when the slot reset is deasserted. I had problems with that and one powered up and FPGA loaded, I had to do a worm restart of Windows which if you are lucky, will not cycle the power, just reset the slots and re-enumerate the PCIe buses.

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Hi bob_dixon,

Thanks for reply.

I had load FPGA system (.sof) file in PCIe 2.0 bus system (core 2 duo) from bios mode and just save & exit from bios which works fine without any issue. But whenever i tried to did the same thing in PCIe 3.0 Bus system at that time Device failed to enumerate in windows as well as in Linux System.

Do you have idea or solution for this type of issue?

Regards,

Ritesh Prajapati