5.ネットワーク周りの設定 今回インストールしたデスクトップマシンには、ギガビットイーサネットワークインタフェース(GBE)が2個ある。そのうち、より性能が期待できるオンボードのインテル製チップのGBEを GNU Radio / USRP で使用し、Realtek製チップのGBEをインターネット接続に使用したい。ifconfigコマンドで確認すると、Realtekがeth0、インテルがeth1として認識されている。これを逆にしたほうが、GNU Radio用のスクリプトを異なるマシン間などで共用する場合に何かと都合が良い気がするので、/etc/udev/rules.d/70-persistent-net.rules を以下のように変更した(eth0とeth1を書き換えただけ)。
■USRP N210のIPアドレスの設定 cd /usr/local/lib/uhd/utils sudo ./usrp2_recovery.py --ifc=eth0 --new-ip=192.168.10.2 ちなみに、このコマンドは、This method assumes that you do not know the IP address of your USRP2.It uses raw Ethernet packets to bypass the IP/UDP layer to communicate with the USRP2. だそうです。USRP N210 でも USRP2 でも使えました。
付録:build-gnuradio script 実行時の画面表示(core 2 duo E8400 3GHzで1時間10分くらい要した) This script will install Gnu Radio from current GIT sources You will require Internet access from the computer on which this script runs. You will also require SUDO access. You will require approximately 500MB of free disk space to perform the build.
This script will, as a side-effect, remove any existing Gnu Radio installation that was installed from your Linux distribution packages. It must do this to prevent problems due to interference between a linux-distribution-installed Gnu Radio/UHD and one installed from GIT source.
The whole process may take up to two hours to complete, depending on the capabilities of your system.
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! NOTE: if you run into problems while running this script, you can re-run it with the --verbose option to produce lots of diagnostic output to help debug problems. This script has been written to anticipate some of the more common problems one might encounter building ANY large, complex software package. But it is not pefect, and there are certainly some situations it could encounter that it cannot deal with gracefully. Altering the system configuration from something reasonably standard, removing parts of the filesystem, moving system libraries around arbitrarily, etc, it likely cannot cope with. It is just a script. It isn't intuitive or artificially intelligent. It tries to make life a little easier for you, but at the end of the day if it runs into trouble, a certain amount of knowledge on your part about system configuration and idiosyncrasies will inevitably be necessary.
Proceed?y Starting all functions at: 2013年 4月 19日 金曜日 16:54:15 JST SUDO privileges are required Do you have SUDO privileges?y Continuing with script [sudo] password for sdr: Installing prequisites...Checking for package libfontconfig1-dev Checking for package libxrender-dev Checking for package libpulse-dev Checking for package swig Checking for package g++ Checking for package automake Checking for package autoconf Checking for package libtool Checking for package python-dev Checking for package libfftw3-dev Checking for package libcppunit-dev Checking for package libboost1.48-all-dev Checking for package libusb-dev Checking for package libusb-1.0-0-dev Checking for package fort77 Checking for package libsdl1.2-dev Checking for package python-wxgtk2.8 Checking for package git-core Checking for package guile-1.8-dev Checking for package libqt4-dev Checking for package python-numpy Checking for package ccache Checking for package python-opengl Checking for package libgsl0-dev Checking for package python-cheetah Checking for package python-lxml Checking for package doxygen Checking for package qt4-dev-tools Checking for package libusb-1.0-0-dev Checking for package libqwt5-qt4-dev Checking for package libqwtplot3d-qt4-dev Checking for package pyqt4-dev-tools Checking for package python-qwt5-qt4 Checking for package cmake Checking for package git-core Checking for package wget Checking for package libxi-dev Checking for package python-docutils Checking for package gtk2-engines-pixbuf Checking for package r-base-dev Checking for package python-tk Checking for package liborc-0.4-0 Checking for package liborc-0.4-dev Checking for package libasound2-dev Checking for package python-gtk2 Checking for library libusb ...Found library libusb Checking for library libboost ...Found library libboost Checking for library libcppunit ...Found library libcppunit Checking for library libguile ...Found library libguile Checking for library libfftw ...Found library libfftw Checking for library libgsl ...Found library libgsl Done Fetching Gnu Radio via GIT...Done Fetching UHD via GIT...Fetching rtl-sdr (rtl-sdr, and gr-osmosdr) via GIT Done Starting function uhd_build at: 2013年 4月 19日 金曜日 17:05:04 JST Building UHD...Done building/installing UHD Done function uhd_build at: 2013年 4月 19日 金曜日 17:13:29 JST Starting function firmware at: 2013年 4月 19日 金曜日 17:13:29 JST Downloading images from: http://files.ettus.com/binaries/maint_images/archive/uhd-images_003.005.002-release.zip 7.23 MB/7.23 MB (100.00%) Images successfully installed to: /usr/local/share/uhd/images Done downloading firmware to /usr/local/share/uhd/images Done function firmware at: 2013年 4月 19日 金曜日 17:13:40 JST Starting function gnuradio_build at: 2013年 4月 19日 金曜日 17:13:40 JST /usr/local/lib already in ld.so.conf.d Doing ldconfig... Building Gnu Radio... ...Doing cmake ...Cmaking ...Building ...Installing Done building and installing Gnu Radio GRC freedesktop icons install ...Done Done function gnuradio_build at: 2013年 4月 19日 金曜日 17:59:14 JST Starting function rtl_build at: 2013年 4月 19日 金曜日 17:59:14 JST Building rtl-sdr...Done building/installing rtl-sdr/gr-osmosdr Done function rtl_build at: 2013年 4月 19日 金曜日 18:00:04 JST Starting function extras at: 2013年 4月 19日 金曜日 18:00:04 JST Doing GIT checkout for extra module gr-baz Building extra module gr-baz Doing GIT checkout for extra module grextras Building extra module grextras Done function extras at: 2013年 4月 19日 金曜日 18:02:57 JST Starting function mod_groups at: 2013年 4月 19日 金曜日 18:02:57 JST ******************************************************************************** This script has just modified /etc/group to place your userid '('$USER')' into group 'usrp' In order for this change to take effect, you will need to log-out and log back in again. You will not be able to access your USRP1 device until you do this.
If you wish to allow others on your system to use the USRP1 device, you will need to use:
sudo usermod -a -G usrp userid
For each userid you wish to allow access to the usrp
Further Done function mod_groups at: 2013年 4月 19日 金曜日 18:02:58 JST Starting function mod_udev at: 2013年 4月 19日 金曜日 18:02:58 JST Done function mod_udev at: 2013年 4月 19日 金曜日 18:02:58 JST Starting function mod_sysctl at: 2013年 4月 19日 金曜日 18:02:58 JST Applying updates to /etc/sysctl.conf Group 'usrp' now has real-time scheduling privileges You will need to log-out and back in again for this to take effect Done function mod_sysctl at: 2013年 4月 19日 金曜日 18:02:59 JST Starting function pythonpath at: 2013年 4月 19日 金曜日 18:02:59 JST
************************************************************ You should probably set your PYTHONPATH to:
in your .bashrc or equivalent file prior to attempting to run any Gnu Radio applications or Gnu Radio Companion. ************************************************************* Done function pythonpath at: 2013年 4月 19日 金曜日 18:02:59 JST Done all functions at: 2013年 4月 19日 金曜日 18:02:59 JST All Done