[email protected] wrote:
> cheap PCIe is still a problem, a 2 chip solution in price range $20 is
> possible
> but one chip one is harder

Getting to $20 range without external phy with pipe interface is almost
impossible currently I would say, even with big volumes. And x4 softcore
and user transaction logic takes considerable space from the FPGA.

> but that the real life is still a little different, yesterday it
> looked
> that cheapes FPGA with PCIe cost 240$ ? (arria)
> hm maybe some virtex is cheaper than arria

Everything depends on volumes... I would say that small V5LXT might be
the best match, using the PCIe hardcore to save space. Another option
depending on the schedule might be ArriaIIGX, it has also integrated
PCIe endpoint. S6 might not be that good match, because it has only x1
hard PCIe EP.

In the original message there is some kind of mixup, it speaks about 4x
PCIe, but 8 lanes, or did he want 2*4x PCIe. 4xPCIe with lowcost FPGAs
might also be quite challenging design.

--Kim