AXI4 communication over Chip2Chip and Aurora
I don't know much about chip2chip, but you have to make sure the AXI interconnect is routing things to the correct master interface. You can't have address collisions as this becomes ambiguous. You also need to make sure the ID fields are properly turned around so the responses are sent to the correct master. It sounds like you may have some sort of address configuration issue. If you move the slaves over to the first FPGA and connect everything in exactly the same way just without the chip2chip link, does it work or does it still fail?