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Altera_Forum's avatar
Altera_Forum
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12 years ago

Simple PCIe DMA

I guess I could try to find the appropriate documentation, but I'll cheat and ask here! I need to find which DMA block to ask our HW team to add to qsys in order to do burst PCIe transfers from...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
12 years ago

I could manage with physical addresses below 4G.

But my attempts to configure the PCIe avalon MM master that way fail - unless I set the master interface to 64bit - and the dma controller doesn't want to generate 64 bit slave addresses.

I can't actually see how the dma controller can actually generate long TLP for reads at all.