How to connect two FPGAs and get the speed of 40 Gbit/s
Guest
#4643859
Hi, I am interested to connect two FPGAs on my PCB and I want to achieve 40 Gbit/s data transmision. Any ideas what kind of connection should I use to achieve that speed? Maybe someone of you have already done it?
Guest
#4643868
e.g. 16 lanes of 2,5Gbit/s PCIe
Guest
#4643905
which FPGA? How much knowldege do you have? Some FPGAs offer serdes blocks which are capable of up to 32Gbit/s per link. But those are complicated and have many requirements regarding routing quality.
Guest
#4643921
Dennis Restle wrote: > which FPGA? every FPGA with SERDES >= 2,5GBit/s Dennis Restle wrote: > How much knowldege do you have? probably a litte more than you Dennis Restle wrote: > But those are complicated and have many requirements regarding routing > quality. You want high-speed as easy as SPI? What´s yor problem?
Guest
#4643956
@Schlumpf I have no problem, i want to help komo. Either you have a problem to distinguish between me and Komo or you see to be very rude. @Komo Some more information would be helpfull. But to work with an design which processes 40 Gbit/s will bring some surprising difficulties for you. best regards
Guest
#4643976
Dennis Restle wrote: > Either you have a problem to > distinguish between me and Komo Indeed I believed your reply was from Komo.. Next time I should take more care of the names.. :-) Sorry
Guest
#4644468
Xilinx offers you FPGAs with high-speed serdes. For 40 gbps (pure net rate?) you will currently need multiple lanes. It is useful to pack a lightweight protocol core like Aurora on it. There you can combine 5x 10,3Gbps links and have a nice streaming Interface on both sides. Reply |