Hi,
Do you have experience with high bandwidth capture on E310 or E320?
We want to use an E310 or E320 for 56 MSPS (or 61.44 MSPS) dual channel
RX captures.
We want to capture into a circular buffer and after a certain signal
signal level is observed set a time to stop capturing after 0.3 seconds.
So we only use the last 0.3 second of captured data.
We are thinking of using a E320. This has a high speed SFP+ 10 gbit port.
Can it stream 2 channel 56 MSPS data to a host-PC continuously to a
host-PC? Or is the ARM processor a bottleneck, like on the E310, which
seems to be limited to max 16MSPS due to the limited arm processor speed.
And can it stream that fast with its default FPGA firmware image, so
there would be no need for RFNoc work and expensive Vivado license.
And if we do need the Xilinx vivado license. Which version do we need?
Alternatively we could try to use the E310 which has a smaller FPGA that
is supported by the free webpack of vivado.
Because it does not have a 10 gbit ethernet we would have to capture to
memory.
I have read that the E310 arm processing is not able to keep up with
more then 16 MSPS captures. So just streaming to the ARM memory in the
E310 would not work.
But if we could someway capture to the 512 MB DDR ram on the FPGA side
(use it as a circular buffer) and afterwards slowly move it to the arm
and from there to the host-PC then that would be fine.
Alternatively I heard that high datarate (56 MSPS) capture on E310 is
possible in some way using RFNoc. Is that true? How would that work.
It would help me a lot if you give me some hints or tell me about your
experience of high bandwidth capturing on E3XX devices.. Even if you do
not know all the answers.
With best regards,
Martin Dudok van Heel
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