That means that the GR you have was built using the older UHD. You’ll very likely need to uninstall GR and do a source based install of GR.
Sent from my iPhone > On May 4, 2021, at 10:28 AM, Zeng, Huacheng <huacheng.z...@gmail.com> wrote: > > > Hi Marcus, > > Thank you for your response. The output of GR graph shows "linux; GNU C++ > version 7.3.0; Boost_106501; UHD_003.010.003.000-0-unknown." Looks like the > GR graph did not use UHD_4.0.0, which I have installed following the > instructions on Ettus website. Is there a way to force GR to use a new > version of UHD? > > Thanks, > Hua > > > >> On Mon, May 3, 2021 at 7:07 PM Marcus D. Leech <patchvonbr...@gmail.com> >> wrote: >> 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 ?? >> _______________________________________________ >> USRP-users mailing list -- usrp-users@lists.ettus.com >> To unsubscribe send an email to usrp-users-le...@lists.ettus.com
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