On 07/25/2018 01:56 AM, RizThon wrote:
You can try using the "num_recv_frames" option in the device
argument--I'd suggest trying 128 and 256.
I get tons of errors right after seeing [INFO] [B200] Operating over
USB 3. Would this explain why I can't seem to stream fast?
Here's what I get for 128
Creating the usrp device with: num_recv_frames=128...
[INFO] [UHD] Win32; Microsoft Visual C++ version 14.0; Boost_105900;
UHD_3.12.0.0-release
[INFO] [B200] Detected Device: B210
[INFO] [B200] Operating over USB 3.
[ERROR] [USB] libusb_session_impl::libusb_event_handler_task:
LIBUSB_ERROR_CODE -1
[...]
[ERROR] [USB] libusb_session_impl::libusb_event_handler_task:
LIBUSB_ERROR_CODE -1
[INFO] [B200] Initialize CODEC control...
[...]
With 256 the program crashes and I only see
Creating the usrp device with: num_recv_frames=256...
[INFO] [UHD] Win32; Microsoft Visual C++ version 14.0; Boost_105900;
UHD_3.12.0.0-release
[INFO] [B200] Detected Device: B210
[INFO] [B200] Operating over USB 3.
[ERROR] [USB] libusb_session_impl::libusb_event_handler_task:
LIBUSB_ERROR_CODE -1
[ERROR] [USB] libusb_sessi
Can this be a USB driver problem? I'm using the one from
http://files.ettus.com/binaries/misc/ dated 29-Mar-2016 19:52.
Can I run any test to make sure everything is fine (B210, drivers,
software)?
I'll also note that, near as I can tell, LimeSDR drivers dont'
reliably report overruns, so you may be getting them without
knowing about it.
I always check the timestamps returned, so I'm pretty sure I only get
very few overruns with the Lime.
Presuming you followed the instructions here for UHD installation:
https://files.ettus.com/manual/page_install.html
Everything should be fine.
I can't remember if we covered this or not. Are you externally-powering
the B210? Some USB ports don't quite provide enough power.
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