08-20-2018 05:36 PM
On a zc706 board, I have two uart blocks connected to an AXI memory to PCIe block, and I can read and write to the uarts through PCIe when I connect my board to my computer running Windows 7. I would like the uarts to be discoverable by the computer as com ports. I have a card that adds serial ports to the computer through a PCIe connection, and I am trying to set up my design to be similar to this card so its driver will work for my design as well. In my design each uart is on its own BAR but in the same PCIe function, but on the card each serial port is in its own PCIe function. I looked through the documentation for the AXI memory to PCIe block to see how to set up multiple PCIe functions, but I couldin't find anything. I there a way to do this? Thanks.
08-22-2018 09:00 AM
08-22-2018 12:58 PM
I don't quite follow what you're saying. I have a PCI card to serial card that shows up as multiple functions as well. If multi-function devices were implemented in PCI they must have been available before PCIe Gen3. Could you clarify what you mean when you say that the feature is defined in the Gen3 spec?
08-22-2018 01:42 PM
I am referring to the physical function feature with Gen3 block shown in the snapshot below.