[USRP-users] B210 USB transfer error

Ralph A. Schmid, dk5ras ralph at schmid.xxx
Sat Sep 20 05:39:15 EDT 2014


I forgot, with USB2 OpenBTS does not work at all, but the gnuradio FM transmitter works without crashes. When I stress the machine, the transmission stutters, but it catches up without crash.





From: USRP-users [mailto:usrp-users-bounces at lists.ettus.com] On Behalf Of Marcus D. Leech via USRP-users
Sent: Friday, 19 September, 2014 19:46
To: Garver, Paul W
Cc: usrp-users at lists.ettus.com
Subject: Re: [USRP-users] B210 USB transfer error


I'd like to understand if this is sample-rate dependent.  Does it happen more frequently at higher samples rates, or is it just dependent on

  runtime?  What about when on USB-2.0?




A goodly chunk of the R&D team at Ettus are on the road until Monday.



On 2014-09-19 13:29, Garver, Paul W via USRP-users wrote:

I can also report I have had this exact same issue with a B200, although I typically run rx_samples_to_file.  I've also tried external power to no avail.  I've also run the B200 on the haswell Intel NUC which also has the series 8/C210 USB 3.0 controller.  I haven't seen this issue yet on the NUC but I don't have a lot of runtime on it yet.
Could you please post your results to the mailing list or can Ettus support contact me offline?  I'm very interested in the resolution to this issue.
System Info:
Gigabyte Brix GB-BXi7-4770R
Ubuntu 14.04 64 bit
Intel Corporation 8 Series/C220 Series Chipset Family USB xHCI (rev 05)
Date: Fri, 19 Sep 2014 02:08:04 +0000
From: "Nowlan, Sean" <Sean.Nowlan at gtri.gatech.edu>
To: "USRP-users at lists.ettus.com" <USRP-users at lists.ettus.com>
Subject: [USRP-users] B210 USB transfer error
     <625d92335cfe4d91923faf730b3e2a97 at apatlisdmail01.core.gtri.org>
Content-Type: text/plain; charset="us-ascii"
Hi all -
I've seen this pop up now and again on this list. Basically while running an RX operation (osmocom_fft or uhd_fft) the B210 will sporadically disconnect from the USB 3.0 hub and then it will immediately reconnect. I can see this in dmesg and /var/log/syslog. It was suggested to me that this may be a power brown out issue since I have a TCXO GPSDO module mounted on board, but I observe the same error even while connected to wall power through the standard 6V, 3A power supply. Here is the console output I see.
UHD Error:
    The receive packet handler caught an exception.
    RuntimeError: usb rx6 transfer status: 5
UHD source block got error code 0xf
terminate called after throwing an instance of 'uhd::runtime_error'
  what():  RuntimeError: usb tx4 submit failed: LIBUSB_ERROR_NO_DEVICE
Aborted (core dumped)
System info:
Intel(R) Core(TM) i5-3210M CPU @ 2.50GHz
USB controller: Intel Corporation 7 Series/C210 Series Chipset Family USB xHCI Host Controller (rev 04)
Ubuntu 14.04 LTS
linux; GNU C++ version 4.8.2; Boost_105400; UHD_003.007.002-94-ge56809a0?
USRP-users mailing list
USRP-users at lists.ettus.com

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