Hello all, I just came across a strange behavior in the digital benchmark examples that I haven't seen before. The transmitter wouldn't stop itself after it finishes sending the requested data size (specified by -M argument). Keyboard interrupt (ctrl+C) has no effect. I had to stop it with ctrl+Z and kill the job after.
This behavior starts when bitrate exceeds 1M. If I ran benchmark_rx2.py then a short period after receiving all packets (~30 sec), the receiver would continuously spill out "O" (overrun). This didn't happen if I ran benchmark_rx.py. (I ran the corresponding tx code.) I'm not sure what could be causing it. I was able to run digital benchmark code on my older machine at 1.5Mbps prior to UHD (I used Ethernet driver) so I'm sure CPU speed isn't a problem. To make it work with UHD driver, I made some changes to the usrp_options.py and generic_usrp.py. I'm quite puzzled right now. I'd appreciate any insights! Thank you, Johnny
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