On Mon, Jan 16, 2012 at 10:13 AM, Tom Rondeau
<trondeau1122@gmail.com> wrote:
On Sun, Jan 15, 2012 at 11:32 PM, Tom Rondeau
<trondeau1122@gmail.com> wrote:
On Fri, Jan 6, 2012 at 12:47 AM, Shalabh Jain
<shalabh.jain@gmail.com> wrote:
Hello,
I recently installed the latest git pull of both the GNU Radio and UHD driver. I am getting the some relating to USRP initialization errors when I'm running some of the examples provided. max_power.py and digital_bert_tx.py or rx.py.
My setup seems correct since I can run the fft scripts etc.
It seems to be some kind of overflow that is causing this but I am not able to figure out why. I tried to use my limited debugging skills and have these comments
1. Since bert is similar to the benchmark_tx, on comparing the two, I see that in digital_bert_tx, the error goes away if you comment out
self._modulator = self._modulator_class(**mod_kwargs)
and pass
self._modulator_class(**mod_kwargs)._constellation
to the bert transmitter chain initialization.
2. There is a minor mismatch in the arguments to the uhd_transmitter initialization, a subdevice is expected between options.tx_gain and options.antenna.
But that is certainly not causing the error.
3. Looking at the C++ source code, the line of code that is actually throwing the exception is in the UHD tree (Line 152 in the uhd_src/host/lib/device.cpp)
device::sptr dev = maker(dev_addr);
I'll look into this tomorrow. When we moved everything to gr-digital and all of the examples to using UHD, we were moving quickly, and this might have been left behind after some change. I know it was working when I first added it. It looks like you found the fix; I'll verify it tomorrow.
4. I cannot figure out any temporary fix for the max_power.py failure.
I was debating over whether or not to even include this example when we moved to using the UHD. This was a program only designed for the first gen USRPs and libusrp. It's really probably not applicable to the conditions under the UHD anymore, anyway. Again, I'll check it tomorrow.
Has anybody else faced similar issues before or have any suggestions for debugging directions?
Thanks
Shalabh
Thanks for the feedback!
Tom
Traceback (most recent call last): - From bert
File "./digital_bert_tx.py", line 130, in <module>
tb = tx_psk_block(mod, options)
File "./digital_bert_tx.py", line 73, in __init__
options.antenna, options.verbose)
File "/home/gnuradio/Shared/sj/usrp_stuff/code/s_eg/digital/narrowband/uhd_interface.py", line 137, in __init__
freq, gain, spec, antenna)
File "/home/gnuradio/Shared/sj/usrp_stuff/code/s_eg/digital/narrowband/uhd_interface.py", line 49, in __init__
self.u = uhd.usrp_sink(device_addr=args, stream_args=uhd.stream_args('fc32'))
File "/opt/gnuradio-3.5/lib/python2.6/dist-packages/gnuradio/uhd/__init__.py", line 112, in constructor_interceptor
return old_constructor(*args)
File "/opt/gnuradio-3.5/lib/python2.6/dist-packages/gnuradio/uhd/uhd_swig.py", line 2320, in usrp_sink
return _uhd_swig.usrp_sink(*args)
RuntimeError: Error in function boost::math::round<d>(d): Value -nan can not be represented in the target integer type.
Traceback (most recent call last): - From max_power.py
File "./max_power.py", line 140, in <module>
main ()
File "./max_power.py", line 133, in main
tb = build_block (options.args, options.tx_enable, options.rx_enable)
File "./max_power.py", line 63, in __init__
self.u_tx = uhd.usrp_sink(device_addr=args, stream_args=stream_args)
File "/opt/gnuradio-3.5/lib/python2.6/dist-packages/gnuradio/uhd/__init__.py", line 112, in constructor_interceptor
return old_constructor(*args)
File "/opt/gnuradio-3.5/lib/python2.6/dist-packages/gnuradio/uhd/uhd_swig.py", line 2320, in usrp_sink
return _uhd_swig.usrp_sink(*args)
RuntimeError: Error in function boost::math::round<d>(d): Value -nan can not be represented in the target integer type.
Shalabh,
I just pushed fixes to the digital BER tests. It was indeed a case that some things changed with how the UHD interface was used that did not get updated here. I just tested these over the air successfully.
I was able to run the max_power.py script just fine. Can you post your hardware configuration so I can see if there is something specific there that's causing a problem?
Thanks,
Tom
Hi Tom,
The max_power.py script runs just fine. However, the problem still seems to persists in general with other examples. I'm posting the error while running digital_bert_tx.py below. It exists for the rx example as well. In fact, with the latest version of gnuradio and uhd, even the uhd_fft.py as stopped working. This was working previously and would occasionally error out. Posting the error message below. It seems the problem is rooted deeper than the top level modules.
My hardware is USRP2 (rev 4.0) with the XCVR2450 daughterboard. The host machine is a Dell Optiplex 980.
Software versions are GNURadio (29aa72d4 - downloaded 1/30), UHD (e30cf4ec - downloaded 1/30), Firmware (003.004.000-322fb97), Ubuntu (10.04 - 32bit)
If you need any more information, please let me know. I will try to debug this further. Please let me know if you have any suggestions in that direction.
I'm really sorry for the delayed response. As I mentioned, I got absorbed into some other work.
Thanks for your help.
Shalabh
linux; GNU C++ version 4.4.3; Boost_104000; UHD_003.004.000-e30cf4e
>>> gr_fir_ccf: using SSE
-- Opening a USRP2/N-Series device...
-- Current recv frame size: 1472 bytes
-- Current send frame size: 1472 bytes
Traceback (most recent call last):
File "./digital_bert_tx.py", line 133, in <module>
tb = tx_psk_block(mod, options)
File "./digital_bert_tx.py", line 75, in __init__
options.antenna, options.verbose)
File "/home/gnuradio/Shared/sj/usrp_stuff/code/s_eg/digital/narrowband/uhd_interface.py", line 137, in __init__
freq, gain, spec, antenna)
File "/home/gnuradio/Shared/sj/usrp_stuff/code/s_eg/digital/narrowband/uhd_interface.py", line 49, in __init__
self.u = uhd.usrp_sink(device_addr=args, stream_args=uhd.stream_args('fc32'))
File "/opt/gnuradio-3.5/lib/python2.6/dist-packages/gnuradio/uhd/__init__.py", line 112, in constructor_interceptor
return old_constructor(*args)
File "/opt/gnuradio-3.5/lib/python2.6/dist-packages/gnuradio/uhd/uhd_swig.py", line 2324, in usrp_sink
return _uhd_swig.usrp_sink(*args)
RuntimeError: Error in function boost::math::round<d>(d): Value -nan can not be represented in the target integer type.
linux; GNU C++ version 4.4.3; Boost_104000; UHD_003.004.000-e30cf4e
-- Opening a USRP2/N-Series device...
-- Current recv frame size: 1472 bytes
-- Current send frame size: 1472 bytes
Traceback (most recent call last):
File "/opt/gnuradio-3.5/bin/uhd_fft.py", line 297, in <module>
main ()
File "/opt/gnuradio-3.5/bin/uhd_fft.py", line 293, in main
app = stdgui2.stdapp(app_top_block, "UHD FFT", nstatus=1)
File "/opt/gnuradio-3.5/lib/python2.6/dist-packages/gnuradio/wxgui/stdgui2.py", line 38, in __init__
wx.App.__init__ (self, redirect=False)
File "/usr/lib/python2.6/dist-packages/wx-2.8-gtk2-unicode/wx/_core.py", line 7978, in __init__
self._BootstrapApp()
File "/usr/lib/python2.6/dist-packages/wx-2.8-gtk2-unicode/wx/_core.py", line 7552, in _BootstrapApp
return _core_.PyApp__BootstrapApp(*args, **kwargs)
File "/opt/gnuradio-3.5/lib/python2.6/dist-packages/gnuradio/wxgui/stdgui2.py", line 42, in OnInit
self._max_noutput_items)
File "/opt/gnuradio-3.5/lib/python2.6/dist-packages/gnuradio/wxgui/stdgui2.py", line 64, in __init__
self.panel = stdpanel (self, self, top_block_maker, max_nouts)
File "/opt/gnuradio-3.5/lib/python2.6/dist-packages/gnuradio/wxgui/stdgui2.py", line 86, in __init__
self.top_block = top_block_maker (frame, self, vbox, sys.argv)
File "/opt/gnuradio-3.5/bin/uhd_fft.py", line 90, in __init__
otw_format=options.wire_format, args=scalar))
File "/opt/gnuradio-3.5/lib/python2.6/dist-packages/gnuradio/uhd/__init__.py", line 112, in constructor_interceptor
return old_constructor(*args)
File "/opt/gnuradio-3.5/lib/python2.6/dist-packages/gnuradio/uhd/uhd_swig.py", line 2290, in usrp_source
return _uhd_swig.usrp_source(*args)
RuntimeError: Error in function boost::math::round<d>(d): Value -nan can not be represented in the target integer type.
