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Altera_Forum's avatar
Altera_Forum
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13 years ago

In qsys,can PCIe IP receive write request that exceeds 512 bytes?

We design our fpga project based on cyclone iv EP4CGX15 without external ram. Since PCIe IP spec says: "A Qsys-generated PCI Express Avalon-MM bridge accepts Avalon-MM burst write requests wit...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
13 years ago

I haven't read everything carefully, but I think the answer to your question is that "yes", if you are using Qsys, you can program the DMA to transfer a very large amount of data, and the PCIe core will split it up into smaller transfers that will work with the PCIe interface.