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Altera_Forum
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16 years ago

Anyone using Altera PCIe core with Avalon-MM in SOPC?

Apologies for the acronym rich title :) I'm having problems with an SOPC Builder design that uses the PCI Express Compiler core plus some home grown IP. The data transfer protocol linking the ...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
16 years ago

Hi all!

I'm new to SOPC builder generated systems and I have some question (maybe, it is related to the problem discussed above...)

The design is based on ArriaGX kit.

I've defined PCIe core + DMA controller + some custom module as Avalon slave, using SOPC builder.

And using Jungo evaluation software as debug tool (writing / reading to the PCIe device).

(pls, see screenshots for connections)

http://www.ee.bgu.ac.il/~andreylu/1.PNG

I do see write transactions to the Avalon-slave (s0), from PC to the device. but i cannot perform read from the slave module.

The module does not use waitrequest and has the simplest avalon-slave interface.

More than that, Jungo application cannot access the card after unsuccesful reading, only SOF reprograming and rescan system devices afterwards helps.

Does anyone have an idea where to look for a problem?