Can't get PCIe (avalon-MM) reference design to work on Arria 10 Dev Kit.

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I would suggest you use another system for testing out the FPGA Dev kit and one for programming it. Not sure if using the same system like this will help / work out.

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Hi @eapenabrm,

Thank you so much for the suggestion. Now I am actually trying to use two separate computers to complete the task. Following the convention stated in this Altera document (https://www.altera.com/content/dam/altera-www/global/en_us/pdfs/literature/an/an456.pdf), we refer the one where the FPGA's PCIe connector connects to as computer# 1, and the one for programming the FPGA as computer# 2.

The steps we are taking now are

(1) Power off computer# 1 -> plug FPGA to computer# 1's PCIe and ATX power supply

(2) Connect one end of the USB blaster download cable to computer# 2, and the other end to the FPGA

(3) Power on computer# 1 -> interrupt the booting of computer# 1 and make it enters BIOS screen

(4) Use computer# 2 to program the reference design's bitstream (output_file/top.sof) into the FPGA. The progress bar shows "100% (successful)"

(5) Exit the BIOS on computer# 1 -> press control+alt+del to soft reboot computer# 1

(6) After computer# 1 is booted, go to the software part of the reference design, execute sudo ./install

At this point I am still getting the error chmod: /dev/altera_dma: no such directory of file. executing ./run also failed because the device is still not found. May I ask if there's anything wrong in this sequence of steps? I tried to follow the official document as close as possible, but am still failing. Also, you mentioned in your reply that

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The issue could also lie due to incorrect PCIe enumeration , coz you've not power-cycled the PCIe card after programming it.

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May I ask what it means? How should I see if computer# 1 has a correct PCIe enumeration?

Any suggestion is much appreciated!