Hi Andrew. It looks like your USRP B210 is connected via USB2. Do you still see the same error when connected to a USB3 port?
-Robin On Wed, Oct 17, 2018 at 1:00 PM Harper, Andrew via USRP-users < usrp-users@lists.ettus.com> wrote: > Hi, I'm having trouble receiving samples with my B210. I get the following > error when I run either a GNU Radio Companion script or the benchmark > utillity: > > EnvironmentError: IOError: usb rx6 transfer status: > LIBUSB_TRANSFER_OVERFLOW > > > Does anyone have a way to resolve this? Below is the benchmark output: > > > sdrl@star00:/usr/local/lib/uhd/examples$ ./benchmark_rate --random > --rx_rate 3200000 > [INFO] [UHD] linux; GNU C++ version 5.4.0 20160609; Boost_105800; > UHD_3.14.0.0-62-g3b42e6f0 > [WARNING] [UHD] Unable to set the thread priority. Performance may be > negatively affected. > Please see the general application notes in the manual for instructions. > EnvironmentError: OSError: error in pthread_setschedparam > Using random number of samples in send() and recv() calls. > > [00:00:00.000005] Creating the usrp device with: ... > [INFO] [B200] Detected Device: B210 > [INFO] [B200] Operating over USB 2. > [INFO] [B200] Detecting internal GPSDO.... > [INFO] [GPS] Found an internal GPSDO: GPSTCXO , Firmware Rev 0.929a > [INFO] [B200] Initialize CODEC control... > [INFO] [B200] Initialize Radio control... > [INFO] [B200] Performing register loopback test... > [INFO] [B200] Register loopback test passed > [INFO] [B200] Performing register loopback test... > [INFO] [B200] Register loopback test passed > [INFO] [B200] Setting master clock rate selection to 'automatic'. > [INFO] [B200] Asking for clock rate 16.000000 MHz... > [INFO] [B200] Actually got clock rate 16.000000 MHz. > Using Device: Single USRP: > Device: B-Series Device > Mboard 0: B210 > RX Channel: 0 > RX DSP: 0 > RX Dboard: A > RX Subdev: FE-RX2 > RX Channel: 1 > RX DSP: 1 > RX Dboard: A > RX Subdev: FE-RX1 > TX Channel: 0 > TX DSP: 0 > TX Dboard: A > TX Subdev: FE-TX2 > TX Channel: 1 > TX DSP: 1 > TX Dboard: A > TX Subdev: FE-TX1 > > [00:00:03.369817] Setting device timestamp to 0... > [INFO] [B200] Asking for clock rate 51.200000 MHz... > [INFO] [B200] Actually got clock rate 51.200000 MHz. > [INFO] [B200] Asking for clock rate 51.200000 MHz... > [INFO] [B200] OK > [INFO] [B200] Asking for clock rate 51.200000 MHz... > [INFO] [B200] OK > [INFO] [B200] Asking for clock rate 51.200000 MHz... > [INFO] [B200] OK > [WARNING] [UHD] Unable to set the thread priority. Performance may be > negatively affected. > Please see the general application notes in the manual for instructions. > EnvironmentError: OSError: error in pthread_setschedparam > [00:00:03.783883] Testing receive rate 3.200000 Msps on 1 channels > [00:00:03.785322] Caught an IO exception. > EnvironmentError: IOError: usb rx6 transfer status: > LIBUSB_TRANSFER_OVERFLOW > [00:00:13.783967] Benchmark complete. > > Benchmark rate summary: > Num received samples: 0 > Num dropped samples: 0 > Num overruns detected: 0 > Num transmitted samples: 0 > Num sequence errors (Tx): 0 > Num sequence errors (Rx): 0 > Num underruns detected: 0 > Num late commands: 0 > Num timeouts (Tx): 0 > Num timeouts (Rx): 0 > > > Done! > > > _______________________________________________ > USRP-users mailing list > USRP-users@lists.ettus.com > http://lists.ettus.com/mailman/listinfo/usrp-users_lists.ettus.com >
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