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Altera_Forum's avatar
Altera_Forum
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18 years ago

How Can I set up DMA operation with my own PC software application?

Hi All: I want to re-use the pcie_highperformancedesign example provided by the Arria GX Development Kit. Now I am confused with the PC software application altpcie_demo.exe. :confused: I a...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
18 years ago

At least in Linux, -1 (or 0xffff...) is the default value when you are reading non-existent I/O or memory mapped locations. Not sure if this goes for PCI as well.

However, we cannot guess what you might be doing wrong without seeing source code.