On 09/16/2011 11:06 PM, [email protected] wrote: > > Hi, all > > I want to use UHD on USRP N210 + WBX. > > > case 1: > > I try to use "uhd_fft.py". > > USRP2 (+ WBX) transmit signal by "benchmark_tx.py", > and USRP N210 (+ WBX) receive signal by uhd_fft.py. > But N210 could not receive the signal. >
Is the correct antenna selected? Can you verify the transmitted signal? > > case 2: > > I try to use "share/uhd/examples/tx_samples_from_file". > > Exec this command. > $ sudo ./tx_samples_to_file --file /file-path --freq 477e6 --rate 1e6 > Why use sudo? > But program finish after return this message > > Error: RuntimeError: > Please update the firmware and FPGA images for your device. > See the application notes for USRP2/N-Series for instructions. > Expected FPGA compatibility number 7, but got 6: > The FPGA build is not compatible with the host code build. > > I think that I use latest version. > > The FPGA does not match the library version. > BUT, I could use "share/uhd/examples/tx_waveforms" > You have multiple versions of libuhd. You should pick 1. > When I try "tx_waveforms", usrp2_fft.py on USRP2 receive signals. > I can see the signal on screen. > > > Why I could not use "tx_samples_from_file"?? > > > > case 3: > > I think that "tx_samples_from_file" is transmit an unmodulated signal. The file represents baseband samples. > I want to transmit an modulated ( by gmsk, dqpsk, dbpsk) signal. > Cool. > I want to use programs on USRP N210 + WBX, > that is similar to gnuradio/examples/digital/benchmark_tx/rx.py. > > Does anyone have sample program?? > > There have been some uhd ports of benchmark example apps on the list. Tom has the new official ones here, but i think you need to install his gr-digital branch to use: https://github.com/trondeau/gnuradio/tree/digital/gr-digital/examples I highly recommend experimenting with gnuradio companion first. -josh _______________________________________________ Discuss-gnuradio mailing list [email protected] https://lists.gnu.org/mailman/listinfo/discuss-gnuradio
