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Altera_Forum's avatar
Altera_Forum
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14 years ago

Point me in the right Direction - PCIe

Ok - Ive been staring at the PCIe Userguide for a couple of days - and I dont really know where to start with this thing. We have a design that requires the following setup: PC (currently windo...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
13 years ago

We have 4 BAR defined (0, 2, 3 and 4).

The last one uses the PCIe to Avalon master bridge and so can access a lot of Avalon slaves.

(Don't ask why some of the others are separate!)

You do have to be careful about how the PCIe slave window in mapped into Avalon address space, there are some strange assumptions made - it some cases it might be necessary to feed the Avalon master signals through a 'conduit' to generate the correct, fixed, upper address bits.