Hi, I replaced your USRP2'mac adress with mine and tryed the code but no received packet even with USRP2. I suggest that you use the usrp2_version branch code to transmit packets with USRP2 and try to catch them with USRP1 since this code works fine for many of us.
Ben Yahmed > > Hi, > > I don't have two usprp2. So I am trying to communicate between usrp1 and > usrp2. Moreover, in the transmit_path.py file I have hard coded my usrp2's > mac address so you would have to replace it with yours before using it. If > there are any other problems with the code then please let me know > > Smith > > > Ben Yahmed wrote: >> >> Hi, >> Did you try to send and receive packets between 2 USRP2? I tryed but >> without any result. Are you sure that it's working correctly? I will >> have a look to the code in more details and tell you if something will >> work. >> >> Ben Yahmed >> >> >> Smith L. wrote: >>> Hi, >>> >>> This is what I get when I run benchmark _tx.py and benchmark_rx.py >>> respectively on USRP2 with transmit_path_usrp2.py and >>> receive_path_usrp2.py >>> respectively: >>> >>> benchmark_tx.py:- >>> >>> m...@mcrl-desktop:~/gnuradio/gnuradio-examples/python/digital$ sudo >>> ./benchmark_tx.py -f 2400M -v >>> usrp2::ctor reset_db failed >>> usrp2::ctor set_rx_gain failed >>> usrp2::ctor set_tx_interp failed >>> usrp2::ctor set_rx_scale_iq failed >>> >>>>>> gr_fir_fff: using SSE >>>>>> >>> bits per symbol = 1 >>> Gaussian filter bt = 0.35 >>> Using TX d'board 43 >>> Tx amplitude 12000 >>> modulation: gmsk_mod >>> bitrate: 500kb/s >>> samples/symbol: 2 >>> interp: 100 >>> Tx Frequency: 2.4G >>> ...........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................m...@mcrl-desktop:~/gnuradio/gnuradio-examples/python/digital$ >>> >>> benchmark_rx.py:- >>> >>> m...@mcrl-desktop:~/gnuradio/gnuradio-examples/python/digital$ sudo >>> ./benchmark_rx.py -f 2400M -v >>> usrp2::ctor reset_db failed >>> >>>>>> gr_fir_fff: using SSE >>>>>> >>> bits per symbol = 1 >>> M&M clock recovery omega = 2.000000 >>> M&M clock recovery gain mu = 0.175000 >>> M&M clock recovery mu = 0.500000 >>> M&M clock recovery omega rel. limit = 0.005000 >>> frequency error = 0.000000 >>> >>> Receive Path: >>> Using RX d'board 39 >>> Rx gain: 35 >>> modulation: gmsk_demod >>> bitrate: 500kb/s >>> samples/symbol: 2 >>> decim: 100 >>> Rx Frequency: 2.4G >>> >>> >>> Now the same thing for usrp1 but using transmit_path.py and >>> receive_path.py >>> which is already provided in gnuradio: >>> >>> benchmark_tx.py:- >>> >>> m...@mcrl-desktop:~/gnuradio/gnuradio-examples/python/digital$ sudo >>> ./benchmark_tx.py -f 2400M -v >>> >>>>>> gr_fir_fff: using SSE >>>>>> >>> bits per symbol = 1 >>> Gaussian filter bt = 0.35 >>> Using TX d'board A: Flex 2400 Tx MIMO B >>> Tx amplitude 12000 >>> modulation: gmsk_mod >>> bitrate: 500kb/s >>> samples/symbol: 2 >>> interp: 128 >>> Tx Frequency: 2.4G >>> ...........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................m...@mcrl-desktop:~/gnuradio/gnuradio-examples/python/digital$ >>> >>> benchmark_rx.py:- >>> >>> m...@mcrl-desktop:~/gnuradio/gnuradio-examples/python/digital$ sudo >>> ./benchmark_rx.py -f 2400M -v >>> >>>>>> gr_fir_fff: using SSE >>>>>> >>> bits per symbol = 1 >>> M&M clock recovery omega = 2.000000 >>> M&M clock recovery gain mu = 0.175000 >>> M&M clock recovery mu = 0.500000 >>> M&M clock recovery omega rel. limit = 0.005000 >>> frequency error = 0.000000 >>> >>> Receive Path: >>> Using RX d'board A: Flex 2400 Rx MIMO B >>> Rx gain: 45 >>> modulation: gmsk_demod >>> bitrate: 500kb/s >>> samples/symbol: 2 >>> decim: 64 >>> Rx Frequency: 2.4G >>> >>> I am using the same pick_bitrate.py file that is already provided in >>> gnuradio. As it can be seen that both usrp systems have the default bit >>> rate >>> irrespective of whether it acts as receiver or transmitter. My concern >>> is >>> with the interpolation and decimation. Do I need to make changes to the >>> pick_bitrate.py file for USRP2? If yes, then what kind of changes. I >>> also >>> observed that even though USRP2 shows a bit rate of 500kbps, however I >>> believe that its transmitting too fast which does not allow USRP1 to >>> receive >>> correctly.I would greatly appreciate any help in this matter. >>> >>> Thanks in advance. >>> >>> Smith >>> >>> Eric Blossom wrote: >>> >>>> On Tue, Apr 14, 2009 at 01:48:21PM -0700, Smith L. wrote: >>>> >>>>> Hi, >>>>> >>>>> I am trying to establish communication between USRP2 and USRP1. I am >>>>> using >>>>> RFX2400 daughterboard. I am using Ubuntu 8.10. I am using the svn >>>>> version >>>>> of >>>>> GNU Radio. I dont know the revision number. I am not able to receive >>>>> anything on USRP2 when USRP1 is transmitting and vice versa. The >>>>> python >>>>> codes for USRP2 work perfectly fine. I guess there is some problem >>>>> with >>>>> the >>>>> ADC and DAC incompatibility (interpolation and decimation) between >>>>> USRP2 >>>>> and >>>>> USRP1. I am attaching all the necessary files that I am using >>>>> currently. >>>>> I >>>>> would appreciate if someone can look at these files and help me to >>>>> sort >>>>> out >>>>> the problem. >>>>> >>>> My guess is that the two are not running at the same bit rate. >>>> You haven't provided us much to go on. >>>> >>>> Please see http://gnuradio.org/trac/wiki/ReportingErrors, and try >>>> asking again. >>>> >>>> Eric >>>> >>>> >>>> _______________________________________________ >>>> 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 >> >> > > -- > View this message in context: > http://www.nabble.com/USRP2-benchmark_rx.py%2C-benchmark_tx.py%2C-transmit_path_usrp2.py%2C-receive_path_usrp2.py%2C-pick_bitrate.py-tp23047724p23221979.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
