[USRP-users] [B210] ERROR_CODE_TIMEOUT when recv_frame_size > 8184

Krzysztof Wisniewski kwisniew at qti.qualcomm.com
Fri Feb 8 06:23:57 EST 2019


Dear users,

I'm new to Ettus SDR therefor I might be missing some basic knowledge. However I've read that in order to increase RX capture performance I should fiddle with recv_frame_size and num_recv_frames. While increasing the latter parameter gives good results, increasing recv_frame_size gives me ERROR_CODE_TIMEOUT. I've went through the UHD code and it seems that my version of USRP should support values <n a range of <40; 16360>. Could someone explain why I'm getting those errors?

My UHD version: linux; GNU C++ version 7.3.0; Boost_106501; UHD_3.14.0.HEAD-0-gd20a7ae2

I'm using rx_to_file.py, this is the command I'm using:

sudo nice -21  python rx_to_file.py --args recv_frame_size=8192, num_recv_frames=256,serial=317B9F8 --output-file /home/odroid/shared/rx_captured.txt --freq 2440e6 --rate=45e6 --duration 0.1

I've tried it on B205mini-I with the same result.

Regards,
Kris

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