[Discuss-gnuradio] Problem of Daughterboard XCVR 2450
From:
Guanbo Zheng
Subject:
[Discuss-gnuradio] Problem of Daughterboard XCVR 2450
Date:
Sun, 9 Jan 2011 19:03:45 -0600
Hi,
I am using XCVR 2450 + USRP2 (Rev 4.0). Before they works fine.
However, I just found out one of them can not set frequency recently :(
The problem statement is as follows: address@hidden:~/downloads/ofdm_example$ sudo python benchmark_ofdm_tx_new.py --mac-addr=00:50:c2:85:3a:ff -f 2.412G -m qpsk -i 100 --tx-gain=30 -M 8 -s 1000
Requested TX Bitrate: 100k Actual Bitrate: 500k Failed to set Rx frequency to 2.412G Traceback (most recent call last): File "benchmark_ofdm_tx_new.py", line 146, in <module> main() File "benchmark_ofdm_tx_new.py", line 104, in main
tb = my_top_block(options) File "benchmark_ofdm_tx_new.py", line 41, in __init__ self.txpath = usrp_transmit_path.usrp_transmit_path(options) File "/home/gbzheng/downloads/ofdm_example/usrp_transmit_path.py", line 67, in __init__
self._setup_usrp_sink(options) File "/home/gbzheng/downloads/ofdm_example/usrp_transmit_path.py", line 90, in _setup_usrp_sink raise ValueError, eng_notation.num_to_str(options.tx_freq) ValueError: 2.412G
I tried different frequency band in 2.4GHz ISM bands, as well as different scale value like 2412000000. however, the result has no luck. Does it mean the broken daughterboard?
Thanks, -- Regards,
Guanbo
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