On 01/27/2015 02:29 PM, Daniel Marlow wrote:
Hello,
OS: Ubuntu 14.01.1
gnu-radio: 3.7.6
Dell Optiplex 765
I am having trouble using the B210 USRP in two channel mode.
Things work well when I use grc to configure the B210 with one
channel, but when I try using two channels, I get the error shown
below. This is quite similar to a problem I had earlier with a
TVRX2, which was fixed with a "-M build." I am still using the same
build and the TVRX2 continues to work fine. Perhaps I am not
configuring the B210 properly? I attach the .grc and top_block.py
files.
Any suggestions would be most welcome.
Sincerely,
Dan Marlow
Executing: "/home/marlow/gnuradio/B210/top_block.py"
linux; GNU C++ version 4.8.2; Boost_105400; UHD_003.008.000-50-gb228b755
Using Volk machine: ssse3_64_orc
libGL error: failed to load driver: swrast
-- Operating over USB 2.
-- Initialize CODEC control...
-- Initialize Radio control...
-- Performing register loopback test... pass
-- Performing register loopback test... pass
-- Performing CODEC loopback test... pass
-- Performing CODEC loopback test... pass
-- Asking for clock rate 32.000000 MHz...
-- Actually got clock rate 32.000000 MHz.
-- Performing timer loopback test... pass
-- Performing timer loopback test... pass
-- Setting master clock rate selection to 'automatic'.
Traceback (most recent call last):
File "/home/marlow/gnuradio/B210/top_block.py", line 178, in <module>
tb = top_block()
File "/home/marlow/gnuradio/B210/top_block.py", line 99, in __init__
self.uhd_usrp_source_0.set_samp_rate(samp_rate)
File
"/usr/local/lib/python2.7/dist-packages/gnuradio/uhd/uhd_swig.py",
line 2774, in set_samp_rate
return _uhd_swig.usrp_source_sptr_set_samp_rate(self, *args, **kwargs)
RuntimeError: LookupError: IndexError: multi_usrp: RX channel 1 out of
range for configured RX frontends
>>> Done
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Your subdev spec should be:
A:A A:B
--
Marcus Leech
Principal Investigator
Shirleys Bay Radio Astronomy Consortium
http://www.sbrac.org
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