Re: [Discuss-gnuradio] Auxiliary ADC

2010-01-19 Thread Kutik
Matt Ettus wrote: > > On 01/19/2010 09:47 AM, Christoph Thein wrote: >> Hi, >> >> is there a possibility to read the data coming from the auxiliary ADC >> (AD7922) >> at the moment? I couldn't find any hint in the code or on the mailing >> list >> that could point me to a good direction to star

[Discuss-gnuradio] USRP1 DBSRX read ADC values

2009-10-14 Thread Kutik
I am using USRP1 with DBSRX. My goal is to implement signal conditioning algorithm. Input is the tuned frequency, output is the optimal gain settings to utilize the full range of ADCs with saturation below acceptable threshold. As the RSSI is not available for DBSRX, the idea is to acquire a sho

Re: [Discuss-gnuradio] USRP1 DBSRX 10MHz reference clock

2009-06-16 Thread Kutik
Eric Blossom wrote: > > On Tue, Jun 16, 2009 at 08:23:37AM -0700, Kutik wrote: >> >> I would like to change the USRP master clock to 10MHz. >> >> I call urx->set_fpga_master_clock_freq(10e6) prior to >> usrp_standard_rx::make. >> >>

[Discuss-gnuradio] USRP1 DBSRX 10MHz reference clock

2009-06-16 Thread Kutik
I would like to change the USRP master clock to 10MHz. I call urx->set_fpga_master_clock_freq(10e6) prior to usrp_standard_rx::make. I wonder how to set the REFCLK_DIVISOR in db_dbs_rx::_refclk_divisor(). >From all examples I have seen the (master_clock/REFCLK_DIVISOR) is 4MHz. This would mean

Re: [Discuss-gnuradio] Cant install gnu radio 3.2..problem with boost

2009-06-12 Thread Kutik
I had similar problem with boost 1.36 Solved by using ./configure --with-boost-include-dir=/usr/include/boost-1_36 when building the GNU radio sources. Sriram Krishnan-3 wrote: > > I have installed the latest version of boost(1.39) but when I do > ./configure > during the install process...it g

Re: [Discuss-gnuradio] GNU radio and cygwin

2009-06-10 Thread Kutik
I believe for the C code you can use "gdb" from Cygwin. For my installation of Cygwin it was not part of standard installation configuration, so maybe you have to install the debugger. -- View this message in context: http://www.nabble.com/GNU-radio-and-cygwin-tp23943173p23959893.html Sent from

[Discuss-gnuradio] spurious spikes in FFT

2009-06-03 Thread Kutik
My HW configuration: USRP1 with DBSRX, no input signal. Using the script to plot FFT usrp_fft.py -f 1003.25M -d 8 -g 72 I see two spurious spikes at 1000 MHz and 1004 MHz (the next one is at 1008 MHz). http://www.nabble.com/file/p23854396/fft_no%2Bsignal.png Where does these spurious signals c

[Discuss-gnuradio] USRP1 signal conditioning

2009-06-02 Thread Kutik
My goal is to implement signal conditioning algorithm. Input is the tuned frequency, output is the optimal gain settings to utilize the full range of ADCs with saturation below acceptable threshold. I would like to ask for clarification regarding the over-count value. From a thread "usrp: rssi/cl

Re: [Discuss-gnuradio] How to use tune function?

2009-06-01 Thread Kutik
I use following code to tune db A, subdevice 0 : usrp_tune_result result; int site = 0; // site A db_base_sptr dbsrx = urx->db(site)[0]; urx->tune(0, dbsrx, freq, &result); Where freq is your desired center frequency. To check the applied configuration you can use: prin

[Discuss-gnuradio] USRP1 repeated transfer failure

2009-06-01 Thread Kutik
Hello, I want to repeat short data acquisitions using the USRP1 via C++ interface. With the following settings: DECIM 128 BYTES_TO_READ 15360 CHANNELS 1 I get error read: usb_reap_async: usb_reap: timeout error Please find attached modified version of C++ interface example (2 repeated acquisiti

Re: [Discuss-gnuradio] USRP1 Cygwin C++ example with 3.2

2009-05-27 Thread Kutik
Problem solved. I've forgot to replace cygusrp-0.dll with the new one from the 3.2 release. Additionally I had to add boost_thread-gcc34-mt-1_36.dll if I want to run the compiled executable with Windows. Kutik wrote: > > Hello, > > I've updated to release 3.2. >

[Discuss-gnuradio] USRP1 Cygwin C++ example with 3.2

2009-05-27 Thread Kutik
Hello, I've updated to release 3.2. I am running the example from C++ Interfacing Questions. I get the following error: 6 [main] testusrp 5792 _cygtls::handle_exceptions: Exception: STATUS_ACCESS_VIOLATION 382 [main] testusrp 5792 open_stackdumpfile: Dumping stack trace to testusrp.

[Discuss-gnuradio] USRP1 DBSRX phase noise

2009-05-26 Thread Kutik
Hello, I would like to capture signals using the USRP1 (rev 4.5) with DBSRX. For the first test I am using CW signal from generator at 1.501GHz, 0 dBm (verified to be precise). To capture the signal I use the usrp_rx_cfile.py (usrp_rx_cfile.py -R a -d 8 -f 1.500G -N 40064 -s -g 45 usrp.dat) I pl