Re: [Discuss-gnuradio] usrp: failed to find usrp [0]

I pulled Back the Power cable from the USRP
First time it gave the errors! But i tried removing the connections and
connecting back again! It worked Then!!

But may i know wat are these print_dbs and dmesg and how do i Use them?

Thanks for your time.


Tom Rondeau wrote:
> 
> udadidd wrote:
>> Hi
>> By mistake i have pulled out the connection of USRP while the
>> benchmark_rx.py program was running.
>>   
> You're going to need to provide more information. Which connection of 
> the USRP did you pull out? The USB or power? See if you can use some of 
> the USRP diagnostic tools like print_dbs or look dmesg to see if the 
> system is seeing the USRP being plugged back in.
> 
> Tom
> 
> 
>> Now i get an Error : 
>> usrp: failed to find usrp[0]
>> Traceback (most recent call last):
>>   File "benchmark_tx.py", line 137, in <module>
>>     main()
>>   File "benchmark_tx.py", line 98, in main
>>     tb = my_top_block(mods[options.modulation], options)
>>   File "benchmark_tx.py", line 42, in __init__
>>     self.txpath = transmit_path(modulator, options)
>>   File "/Users/udaya/gnuradio-examples/python/digital/transmit_path.py",
>> line 64, in __init__
>>     self._setup_usrp_sink(options)
>>   File "/Users/udaya/gnuradio-examples/python/digital/transmit_path.py",
>> line 111, in _setup_usrp_sink
>>     self.u = usrp_options.create_usrp_sink(options)
>>   File "/Users/udaya/gnuradio-examples/python/digital/usrp_options.py",
>> line
>> 99, in create_usrp_sink
>>     fusb_nblocks=options.fusb_nblocks,
>>   File "/Users/udaya/gnuradio-examples/python/digital/generic_usrp.py",
>> line
>> 153, in __init__
>>     except: self._setup_usrp_source()
>>   File "/Users/udaya/gnuradio-examples/python/digital/generic_usrp.py",
>> line
>> 176, in _setup_usrp_source
>>     fusb_nblocks=self._fusb_nblocks)
>>   File
>> "/usr/local/lib/python2.5/site-packages/gnuradio/usrp/usrp_swig.py",
>> line 2469, in sink_c
>>     return _usrp_swig.sink_c(*args, **kwargs)
>> RuntimeError: can't open usrp
>> Exception exceptions.AttributeError: "'gr_hier_block2_sptr' object has no
>> attribute '_type'" in <bound method generic_usrp_sink_c.__del__ of
>> <generic_usrp.generic_usrp_sink_c object at 0x2a32cd0>> ignored
>>
>> Please help...Thanks
>> Udaya
>>   
> 
> 
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