With the downloaded images for UHD-4.0 I saw a couple of things:
1) The CPU clock speed is set for speed grade 1 parts, not speed grade 3.
2) UHD-4.0 hangs after a while at higher data rates, I've also seen this
on a b200.
If there are fixes for these issues, you might get a bit more transfer
rat
The E31x series really are intended for applications where all the high sample
rate stuff happens in the FPGA.
The ARM cpu is only dual core and runs at under 1Ghz.
The scenario you describe is a lot like what we used to call “network mode” for
the E31x, and it was never recommended for that