Hi Ben, thank you for your answer.
My previous question was bit strange. There are to functions of you, once the dl_file_scan and once the only dl_scan function. I did undertood that the dl_file_scan function kinda works with USRP, but I was not sure about the dl_scan function. I read here that dl_scan does not support USRP: http://sourceforge.net/p/openlte/mailman/message/30559702/ Is it still valid: Does the dl_scan function still not suppoert USRP? OR can we by adding the resampler block run it? When I did run the dl_scan function, it (probably the osmo code) recognized the USRP2/N-SERIES device and got overflow alerts ("D"). I don't undertand, if that means that the dl_scan function works with the USRP2/N but needs some resampling? So from your mail, I thought first the addition of the "resampler" is only valid for the dl_file_scan function, till I managed to run the dl_scan, thatswhy I am confused. Lastly, (this is probably my job). I don't know if one can create from your source files grc flowcharts. I looking for that right now. Then, it would be "easy" to add a resampling block to your code. If not, could you also please give a hint about how it can be done in your source code? Regards, Dincer Von: Ben Wojtowicz [mailto:bwojt...@gmail.com] Gesendet: Dienstag, 1. Oktober 2013 14:47 An: Dincer Beken Cc: openlte-disc...@lists.sourceforge.net; Discuss-gnuradio@gnu.org Betreff: Re: [Openlte-discuss] Error while building openLTE code on USRP Dincer, I believe that you will need to add a resampler to the openLTE code in order to run on a USRP. I don't have a USRP myself, but I believe that they only allow sample rates that are integer divisions of 100Msps (except the USRP B200 series). In order to get a valid LTE sample rate (30.72, 15.36, 7.68, 3.84, or 1.92Msps), you will need to add a resampling block. As you mentioned, I am using the gr-osmosdr blocks to interface currently to rtl-sdr and hackRF. There is support in gr-osmosdr for USRP, but it will need to be handled in the flowgraph. Hope this helps, Ben On Mon, Sep 30, 2013 at 7:21 AM, Dincer Beken <dbe...@blackned.de<mailto:dbe...@blackned.de>> wrote: Sorry but I think I mailed to early. On a normal gnuradio distribution from the build-gnuradio.py -m" code on Fedora, I did not experience the problems while build and install. I am checking out the code right now.. Regarding OSMO and RTL-SDR, I did understand it like the libraries can detect and work with USRP, so that's probably clear, too. When using those libraries with USRP, are there any specific changes that I should make for some blocks etc.? Regards, Dincer Von: discuss-gnuradio-bounces+dbeken=blackned...@gnu.org<mailto:blackned...@gnu.org> [mailto:discuss-gnuradio-bounces+dbeken<mailto:discuss-gnuradio-bounces%2Bdbeken>=blackned...@gnu.org<mailto:blackned...@gnu.org>] Im Auftrag von Dincer Beken Gesendet: Montag, 30. September 2013 13:42 An: openlte-disc...@lists.sourceforge.net<mailto:openlte-disc...@lists.sourceforge.net> Cc: Discuss-gnuradio@gnu.org<mailto:Discuss-gnuradio@gnu.org> Betreff: [Discuss-gnuradio] Error while building openLTE code on USRP Hi all, I am new to Gnuradio and USRP. I want to try the openLTE Project on my USRP N210. During the cmake process I am getting the following errors: CMake Warning at CMakeLists.txt:92 (find_package): Could not find a configuration file for package "Gnuradio" that is compatible with requested version "3.7.0". The following configuration files were considered but not accepted: /usr/local/lib/cmake/gnuradio/GnuradioConfig.cmake, version: 3.8.git.0 Also since I am not using one of the following devices: I also get : -- checking for module 'gnuradio-osmosdr' -- package 'gnuradio-osmosdr' not found -- Could NOT find GNURADIO_OSMOSDR (missing: GNURADIO_OSMOSDR_LIBRARIES GNURADIO_OSMOSDR_INCLUDE_DIRS) -- checking for module 'librtlsdr' -- package 'librtlsdr' not found -- Could NOT find RTLSDR (missing: RTLSDR_LIBRARIES RTLSDR_INCLUDE_DIRS) -- checking for module 'libhackrf' -- package 'libhackrf' not found -- Could NOT find HACKRF (missing: HACKRF_LIBRARIES HACKRF_INCLUDE_DIRS) -- checking for module 'fftw3f >= 3.0' -- found fftw3f , version 3.3 -- Found FFTW3F: /usr/lib/libfftw3f.so CMake Error at CMakeLists.txt:99 (message): GNURadio required to compile openLTE After that, I changed in the cmake file the required Gnuradio Version manually to 3.8. Now I am getting only the OSMO / RTL errors: * -- checking for module 'gnuradio-osmosdr' -- package 'gnuradio-osmosdr' not found -- Could NOT find GNURADIO_OSMOSDR (missing: GNURADIO_OSMOSDR_LIBRARIES GNURADIO_OSMOSDR_INCLUDE_DIRS) -- checking for module 'librtlsdr' -- package 'librtlsdr' not found -- Could NOT find RTLSDR (missing: RTLSDR_LIBRARIES RTLSDR_INCLUDE_DIRS) -- checking for module 'libhackrf' -- package 'libhackrf' not found -- Could NOT find HACKRF (missing: HACKRF_LIBRARIES HACKRF_INCLUDE_DIRS) CMake Error at CMakeLists.txt:103 (message): GNURadio Osmosdr required to compile openLTE (http://sdr.osmocom.org/trac/wiki/GrOsmoSDR) >From the discuss Forum of gnuradio, I read that it is possible to run it with >USRP (USRP2) https://www.ruby-forum.com/topic/4169390#new How can I ignore those libraries or replace them? And can I use this code on the USRP? Regards, Dincer ------------------------------------------------------------------------------ October Webinars: Code for Performance Free Intel webinars can help you accelerate application performance. Explore tips for MPI, OpenMP, advanced profiling, and more. Get the most from the latest Intel processors and coprocessors. See abstracts and register > http://pubads.g.doubleclick.net/gampad/clk?id=60133471&iu=/4140/ostg.clktrk _______________________________________________ Openlte-discuss mailing list openlte-disc...@lists.sourceforge.net<mailto:openlte-disc...@lists.sourceforge.net> https://lists.sourceforge.net/lists/listinfo/openlte-discuss
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