On 14/11/2023 07:01, anil.ant...@ltts.com wrote:
Hi,
I am using usrp B210 for my 5G test bench setup. The setup is consists
of Openairinterface5G 5G stack and UHD driver 4.3.0. UHD driver is
installed form source code approach and only one libuhd driver is in
use. My setup is as follows,
*
Intel i7, 8 core, 8GB RAM, 3.6GHz CPU with ubuntu18.04, 4.15.0.123
Low latency kernel.
*
USB 3.0 connection
*
Log periodic antenna (*LP0965 Antenna)*
Snippet of the error:
[HW] [recv] received 14380 samples out of 23040
[ERROR] [STREAMER] The receive packet handler caught a value exception.
ValueError: bad vrt header or packet fragment
[HW] ERROR_CODE_BAD_PACKET
[PHY] rx_rf: Asked for 23040 samples, got 14380 from USRP
[PHY] problem receiving samples
[HW] [recv] received 0 samples out of 23040
[HW] ERROR_CODE_TIMEOUT
kern.log:
Nov 14 07:04:43 MYTSP00192 kernel: [489670.971642] xhci_hcd
0000:00:14.0: WARN Cannot submit Set TR Deq Ptr
Nov 14 07:04:43 MYTSP00192 kernel: [489670.971644] xhci_hcd
0000:00:14.0: A Set TR Deq Ptr command is pending.
Nov 14 11:54:29 MYTSP00192 kernel: [507057.294029] enp4s0: Invalid MTU
9000 requested, hw max 1500
Nov 14 11:54:29 MYTSP00192 kernel: [507057.592639] xhci_hcd
0000:00:14.0: bad transfer trb length 7680 in event trb
Please help me.
Regards,
Anil
Yeah, so there's something wrong with your USB3 subsystem. Maybe a bad
cable? Try using the external power supply
on the B210 if you aren't already.
Also:
https://kb.ettus.com/USRP_Host_Performance_Tuning_Tips_and_Tricks
And you might look into the transport parameters for USB:
https://files.ettus.com/manual/page_transport.html
_______________________________________________
USRP-users mailing list -- usrp-users@lists.ettus.com
To unsubscribe send an email to usrp-users-le...@lists.ettus.com
