Discussion and technical support related to USRP, UHD, RFNoC
View all threadsI am having trouble understanding the difference between radio select and
channels on the X310.
It appears that the X310 has a radio select A [FPGA block Radio_0] and B
[FPGA block Radio_1], but both of these only have one channel? Whenever I
try to use a channel 0 and channel 1 for Radio_0 I get the following error:
File "/home/delta3/rfnoc3/src/rfnoc-ootm/examples/top_block.py", line
477, in <module>
main()
File "/home/delta3/rfnoc3/src/rfnoc-ootm/examples/top_block.py", line
465, in main
tb = top_block_cls()
File "/home/delta3/rfnoc3/src/rfnoc-ootm/examples/top_block.py", line
92, in init
self.uhd_rfnoc_streamer_radio_1.set_rx_freq(4e9, 1)
File
"/home/delta3/rfnoc3/lib/python2.7/dist-packages/ettus/ettus_swig.py", line
3261, in set_rx_freq
return _ettus_swig.rfnoc_radio_sptr_set_rx_freq(self, freq, chan)
RuntimeError: LookupError: Path not found in tree:
/mboards/0/dboards/A/rx_frontends/freq/value
Is there a way to enable a channel 0 and 1 for Radio_0? If not, is this
because of hardware limitations or because of software limitations?
Regards,
Anton Schlegel
On 11/05/2018 04:41 PM, Anton Schlegel via USRP-users wrote:
I am having trouble understanding the difference between radio select
and channels on the X310.
It appears that the X310 has a radio select A [FPGA block Radio_0] and
B [FPGA block Radio_1], but both of these only have one channel?
Whenever I try to use a channel 0 and channel 1 for Radio_0 I get the
following error:
What daughtercards do you have one your X310? Many cards have only a
single RF channel.
File "/home/delta3/rfnoc3/src/rfnoc-ootm/examples/top_block.py",
line 477, in <module>
main()
File "/home/delta3/rfnoc3/src/rfnoc-ootm/examples/top_block.py",
line 465, in main
tb = top_block_cls()
File "/home/delta3/rfnoc3/src/rfnoc-ootm/examples/top_block.py",
line 92, in __init__
self.uhd_rfnoc_streamer_radio_1.set_rx_freq(4e9, 1)
File
"/home/delta3/rfnoc3/lib/python2.7/dist-packages/ettus/ettus_swig.py",
line 3261, in set_rx_freq
return _ettus_swig.rfnoc_radio_sptr_set_rx_freq(self, freq, chan)
RuntimeError: LookupError: Path not found in tree:
/mboards/0/dboards/A/rx_frontends/freq/value
Is there a way to enable a channel 0 and 1 for Radio_0? If not, is
this because of hardware limitations or because of software limitations?
Regards,
Anton Schlegel
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