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[Discuss-gnuradio] uhd digital-bert script !

From: saketh kumar
Subject: [Discuss-gnuradio] uhd digital-bert script !
Date: Mon, 8 Aug 2011 12:16:56 -0400

Hello everyone

   I am working on USRPN200 with RFX2400. I am trying to make digital-bert scripts to work for uhd devices. I have modified them a bit but i am getting some errors which am unable to debug. If anyone can help me out. Attached are my benchmark_tx and transmit_path scripts.

while running the script, it shows me :

address@hidden:~/gnuradio/gnuradio-examples/python/digital-bert$ ./uhd_benchmark_tx.py -f 2500M -g 16
linux; GNU C++ version 4.4.5; Boost_104200; UHD_003.001.002-5239879

>>> gr_fir_ccf: using SSE
Modulation: 250k bits/sec
TX IF rate: 500k samples/sec
USRP interpolation: 256
DAC amplitude: 2000
-- Opening a USRP2/N-Series device...
-- Current recv frame size: 1472 bytes
-- Current send frame size: 1472 bytes
-- mboard0 is MIMO master

UHD Warning:
    Unable to set the thread priority. Performance may be negatively affected.
    Please see the general application notes in the manual for instructions.
    EnvironmentError: OSError: error in pthread_setschedparam
Gain d'board: 16 dB
Actual center frequency 2.5G
Traceback (most recent call last):
  File "./uhd_benchmark_tx.py", line 109, in <module>
    tb = tx_bpsk_block(options)
  File "./uhd_benchmark_tx.py", line 56, in __init__
    self.connect(self._transmitter, self._usrp)
  File "/usr/local/lib/python2.6/dist-packages/gnuradio/gr/top_block.py", line 124, in connect
    self._connect(points[i-1], points[i])
  File "/usr/local/lib/python2.6/dist-packages/gnuradio/gr/top_block.py", line 130, in _connect
    dst_block.to_basic_block(), dst_port)
  File "/usr/local/lib/python2.6/dist-packages/gnuradio/gr/gnuradio_core_runtime.py", line 1504, in primitive_connect
    return _gnuradio_core_runtime.gr_top_block_sptr_primitive_connect(self, *args)
ValueError: port number 0 exceeds max of (none)

Saketh Kumar

Attachment: uhd_benchmark_tx.txt
Description: Text document

Attachment: transmit_path.txt
Description: Text document

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