On 05/03/2021 04:31 PM, Zeng, Huacheng wrote:
Hello,
I was trying to receive the signal from UHD Sink (n310) in GNU Radio
Companion (GRC) but got the following error message (i.e., GRC cannot
find N310). I am using Ubuntu 18.04, GNU RADIO 3.9, and UHD 4.0.0. I
have confirmed that
- My GRC can work with N210.
- I can ping both eth0 and SPF+ ports of N310 from host.
- In terminal "uhd_find_devices" can find N310.
- "uhd_usrp_probe" can also find N310. Output message is attached below.
- I can log in N310 using SSH.
- I have updated N310's FPGA image. The OS in N310 is also UHD 4.0.0
(the same as the host).
Any suggestions would be appreciated.
Thanks,
Hua
================================
ERROR MESSAGE FROM GRC
================================
Traceback (most recent call last):
File "/home/cnss/test2.py", line 150, in <module>
main()
File "/home/cnss/test2.py", line 126, in main
tb = top_block_cls()
File "/home/cnss/test2.py", line 84, in __init__
channels=list(range(0,1)),
File "/usr/lib/python3/dist-packages/gnuradio/uhd/__init__.py", line
125, in constructor_interceptor
return old_constructor(*args)
File "/usr/lib/python3/dist-packages/gnuradio/uhd/uhd_swig.py", line
3259, in make
return _uhd_swig.usrp_source_make(device_addr, stream_args,
issue_stream_cmd_on_start)
RuntimeError: LookupError: KeyError: No devices found for ----->
Device Address:
addr: 192.168.20.2
Could you share the full output from the GR graph run? Including the
headers where it says what version of UHD it is using?
Also, what was the device address string you used in GR? Did you
include type=n3xx,product=n310 ??
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