---------- Forwarded message ----------
From:
Bonee Soibam <address@hidden>
Date: Sat, Sep 10, 2011 at 5:16 PM
Subject: Problems regarding using UHD Digital-bert codes
To:
address@hiddenHi ,
I have been trying to use the examples given in /home/aravind/gnuradio/gnuradio-examples/python/digital-bert . esp the uhd_benchmark_tx.py . here are a few changes that i made to the existing code ..
__________________________________________________________________________________________________________________________________-
#setup usrp
self._setup_usrp(options.ip,
interp,
options.gain,
options.freq)
self.connect(self._transmitter, self._usrp)
def _setup_usrp(self, ip, interp, gain, freq):
# Setup single usrp sink
self._uhd = uhd.single_usrp_sink(device_addr="",
io_type=uhd.io_type.COMPLEX_FLOAT32,
num_channels=1
)
# Tune to center frequency
tr = self._usrp.set_center_freq(freq,0)
if not (tr):
print "Failed to tune to center frequency!"
else:
print "Actual Intermediate frequency:", n2s(self._usrp.get_center_freq())
# Set Tx Gain
self._uhd.set_gain(gain,1)
print "Gain d'board: ",n2s(self._usrp.get_gain()), "dB"
____________________________________________________________________________________________________________________________
but i am getting error as mentioned : -
Traceback (most recent call last):
File "./uhd_benchmark_tx.py", line 113, in <module>
tb = tx_bpsk_block(options)
File "./uhd_benchmark_tx.py", line 56, in __init__
options.freq)
File "./uhd_benchmark_tx.py", line 70, in _setup_usrp
tr = self._usrp.set_center_freq(freq,0)
File "/usr/local/lib/python2.6/dist-packages/gnuradio/gr/top_block.py", line 94, in __getattr__
return getattr(self._tb, name)
AttributeError: 'gr_top_block_sptr' object has no attribute '_usrp'
address@hidden:~/gnuradio/gnuradio-examples/python/uhd-digital-bert$
_______________________________________________________________________________________________________________________
i included an From gnuradio import uhd statement to top_block.py also . but i am still getting getting the same error .
I waould like your guidance , because i have been trying to make this example work for weeks .
Yours sincerely
Bonee Soibam
uhd_benchmark_tx.py