Hi Anupama Unfortunately, I can't offer a solution at this stage. However, I had similar error messages a few days ago. I thought perhaps these python scripts were to be used exclusively for the original USRPs, though I think in one or two posts I have seen, people mentioned successfully running them for USRP2s.
Ian. -----Original Message----- From: discuss-gnuradio-bounces+ian.holland=rlmgroup.com...@gnu.org [mailto:discuss-gnuradio-bounces+ian.holland=rlmgroup.com...@gnu.org] On Behalf Of Anu000 Sent: Wednesday, 3 February 2010 8:04 AM To: Discuss-gnuradio@gnu.org Subject: Re: [Discuss-gnuradio] running OFDM on USRP2 Hi, We did try the below command on two USRP2s coneected via a SMA Cable (Tx-Rx) with freq = 25M however it returned the following error on both sides At Rx side it shows like the below - [r...@gnuradio1 ofdm]# ./benchmark_ofdm_rx.py -f 25M -d 256 --fft-length=64 --occupied-tones=32 --cp-length=4 usrp: failed to find usrp[0] Traceback (most recent call last): File "./benchmark_ofdm_rx.py", line 210, in <module> main() File "./benchmark_ofdm_rx.py", line 199, in main tb = my_top_block(rx_callback, options) File "./benchmark_ofdm_rx.py", line 51, in __init__ self._setup_usrp_source() File "./benchmark_ofdm_rx.py", line 70, in _setup_usrp_source fusb_nblocks=self._fusb_nblocks) File "/usr/lib/python2.6/site-packages/gnuradio/usrp/usrp_swig.py", line 1699, in source_c return _usrp_swig.source_c(*args, **kwargs) RuntimeError: can't open usrp At Tx side - r...@gnu2 ofdm]# ./benchmark_ofdm_tx.py -f 25M -i 512 --fft-length=64 --occupied-tones=32 --cp-length=4 usrp: failed to find usrp[0] Traceback (most recent call last): File "./benchmark_ofdm_tx.py", line 217, in <module> main() File "./benchmark_ofdm_tx.py", line 190, in main tb = my_top_block(options) File "./benchmark_ofdm_tx.py", line 51, in __init__ self._setup_usrp_sink() File "./benchmark_ofdm_tx.py", line 66, in _setup_usrp_sink fusb_nblocks=self._fusb_nblocks) File "/usr/local/lib/python2.5/site-packages/gnuradio/usrp/usrp_swig.py", line 2415, in sink_c return _usrp_swig.sink_c(*args, **kwargs) RuntimeError: can't open usrp May we request somebody to support us at the earliest to resolve the above issue with either software or hardware . Thanks again, Anupama bin zan wrote: > > Hello, > I was trying to run following OFDM command on USRP2, however, I got > a > bunch of "SSSSStime out" at the receiver side. > > ./benchmark_ofdm_tx.py -f 2.4G -i 512 --fft-length=64 --occupied-tones=32 > --cp-length=4 > ./benchmark_ofdm_rx.py -f 2.4G -d 256 --fft-length=64 --occupied-tones=32 > --cp-length=4 > > I wonder if there is any one successfully running OFDM on USRP2, what are > the command parameters you are using and if there is any modification in > the > code, can you let me know. > > Thanks, > Bin > > _______________________________________________ > Discuss-gnuradio mailing list > Discuss-gnuradio@gnu.org > http://lists.gnu.org/mailman/listinfo/discuss-gnuradio > > -- View this message in context: http://old.nabble.com/running-OFDM-on-USRP2-tp27342376p27427749.html Sent from the GnuRadio mailing list archive at Nabble.com. _______________________________________________ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org http://lists.gnu.org/mailman/listinfo/discuss-gnuradio _______________________________________________ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org http://lists.gnu.org/mailman/listinfo/discuss-gnuradio
