Hello,
I have a B210 and I am trying to transmit and receive from all it’s
channels simultaneously. My setup is a macmini late 2012 with Ubuntu
12.04
install. I compiled and installed gnuradio from source using the
gnuradio
build script. I have developed the attached very simple GRC script that
looks like this
signal_source@1khz --> USRP_sink_channel1
signal_source@2khz --> USRP_sink_channel2
USRP_source_channel1 --> WX_GUI_scope_channel1
USRP_source_channel2 --> WX_GUI_scope_channel2
The problem I have is that I get the following message at random times
and
on average on 1/3 executions of the GRC script.
linux; GNU C++ version 4.6.3; Boost_104800; UHD_003.008.000-18-g864f84b5
Using Volk machine: avx_64_mmx_orc
– Operating over USB 3.
– 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
– Asking for clock rate 28.000000 MHz
– Actually got clock rate 28.000000 MHz
– Performing timer loopback test… pass
– Performing timer loopback test… pass
– Tune Request: 915.000000 MHz
– The RF LO does not support the requested frequency:
– Requested LO Frequency: 915.000000 MHz
– RF LO Result: 914.999999 MHz
– Attempted to use the DSP to reach the requested frequency:
– Desired DSP Frequency: -0.000001 MHz
– DSP Result: -0.000001 MHz
– Successfully tuned to 915.000000 MHz
– Tune Request: 915.000000 MHz
– The RF LO does not support the requested frequency:
– Requested LO Frequency: 915.000000 MHz
– RF LO Result: 914.999999 MHz
– Attempted to use the DSP to reach the requested frequency:
– Desired DSP Frequency: -0.000001 MHz
– DSP Result: -0.000001 MHz
– Successfully tuned to 915.000000 MHz
– Asking for clock rate 28.000000 MHz
– Actually got clock rate 28.000000 MHz
– Performing timer loopback test… pass
– Performing timer loopback test… pass
– Tune Request: 915.000000 MHz
– The RF LO does not support the requested frequency:
– Requested LO Frequency: 915.000000 MHz
– RF LO Result: 914.999999 MHz
– Attempted to use the DSP to reach the requested frequency:
– Desired DSP Frequency: 0.000001 MHz
– DSP Result: 0.000001 MHz
– Successfully tuned to 915.000000 MHz
– Tune Request: 915.000000 MHz
– The RF LO does not support the requested frequency:
– Requested LO Frequency: 915.000000 MHz
– RF LO Result: 914.999999 MHz
– Attempted to use the DSP to reach the requested frequency:
– Desired DSP Frequency: 0.000001 MHz
– DSP Result: 0.000001 MHz
– Successfully tuned to 915.000000 MHz
thread[thread-per-block[2]: <block gr uhd usrp sink (24)>]:
RuntimeError:
b200: 2 RX 1 TX and 1 RX 2 TX configurations not possible
It is obvious that I have all channels activated and that this message
shouldn’t be appearing in the first place, let alone, appearing in a
non-deterministic manner.
Any ideas?
Thank you in advance
Lefteris