Error -1074118610 occurred at niUSRP Fetch Rx Data (CDB Cluster).vi

[amanil]

Hi,

We're working on a project that involves transmitting and recieving data with USRP N210 in LabVIEW. After some time when running the example niUSRP_EX_PSK_Rx.vi we get an error:

"Error -1074118610 occurred at niUSRP Fetch Rx Data (CDB Cluster).vi

Possible reason(s):
The received data is out of sequence. This may be a symptom of overflows due to an inability to maintain streaming at the specified IQ Rate, or rearrangement of packets by an ethernet adapter or network switch."

We have tried to change the parameters (increase the IQ-rate and number of samples), tried switching USRPs and the computer running LabVIEW, even re-installed the USRP-drivers but the problem remains.

Ideas on how to solve this are greatly appreciated!

[AirFrantz]

I believe the error may indicate that instead of increasing the IQ rate you should try decreasing it, along with number of samples.  An overflow would be caused by samples coming in too many too fast.  As per the other error suggestion, are you using a network switch?  Do you get the same error when directly connecting the USRP to the computer?

[Insiderbe]

Tried different settings, sometimes it's working on IQ=1M and samples=20 000, other times it doesn't work while it's Rx'ing on IQ=100k and samples=10 .. 😕

[Insiderbe]

problem solved:

It's the computer that's the problem

Tested the USRP n210 with ubuntu: never receive an overflow
so i tried a different windows pc, no more overflows...