InstallingGRFromSource on Raspberry Pi
Note that there is a pre-built 32-bit SDR flavored Raspberry Pi OS distro, PiSDR that includes GNU Radio and other SDR utilities. Alternatively, you can install from source using the steps in the remainder of this page.
These instructions have been tested with the
Raspberry Pi OS (previously called Raspbian) (32-bit) with desktop and recommended software on a Raspberry Pi 3B+. A 32GB microSD card is recommended.
Set up a swap file
A swap file will improve the compile time greatly.
sudo fallocate -l 2G /swapfile sudo chmod 600 /swapfile sudo mkswap /swapfile sudo swapon /swapfile
To make the swap file permanent, add this line to /etc/fstab
/swapfile none swap sw 0 0
You may have some of these prerequisites already, but it doesn't hurt to get them again and check for the latest versions.
sudo apt update --allow-releaseinfo-change sudo apt upgrade sudo apt install git cmake g++ libboost-all-dev libgmp-dev swig python3-numpy \ python3-mako python3-sphinx python3-lxml doxygen libfftw3-dev \ libsdl1.2-dev libgsl-dev libqwt-qt5-dev libqt5opengl5-dev python3-pyqt5 \ liblog4cpp5-dev libzmq3-dev python3-yaml python3-click python3-click-plugins \ python3-zmq python3-scipy libpthread-stubs0-dev libusb-1.0-0 libusb-1.0-0-dev \ libudev-dev python3-setuptools build-essential liborc-0.4-0 liborc-0.4-dev \ python3-gi-cairo
You might, or might not, need:
sudo apt install python3-docutils python3-pip pip install pygccxml
Install UHD from source
If you want to use GNU Radio with a USRP, install the UHD package from source using the following instructions. UHD sits at the same level as GNU Radio as an independent driver, which gr-uhd references. So if you want gr-uhd enabled, you FIRST must clone and install UHD.
For this example, we will start in the home directory to parallel the steps in InstallingGR#From_Source.
Clone the code into your home directory:
git clone https://github.com/EttusResearch/uhd.git cd ~/uhd
Note: In the following command, change
v126.96.36.199 to some other branch or tag if you want to build a different version.
git checkout v188.8.131.52
Note: Unlike most build processes, UHD builds under the
cd host mkdir build cd build
Note: In the following command, we will use
-DCMAKE_INSTALL_PREFIX=/usr/local to install UHD into the same prefix as GNU Radio. When compiling for ARM platforms, the assumption is made that NEON extensions are available if the arm_neon.h header is found. However, for platforms such as Raspberry Pi, one must specify -DNEON_SIMD_ENABLE=OFF in the following command.
cmake -DNEON_SIMD_ENABLE=OFF -DCMAKE_INSTALL_PREFIX=/usr/local ../
Note: In the following command, if your computer's CPU has multiple cores, you can use the argument
-j# to speed compilation;
make -j3 will use 3 threads in the build. Specify at least one less than the number of CPU cores so the system does not appear to 'freeze' during the build. If not specified, then a single thread is used for the build; this is not necessarily a bad thing, but it will take roughly 2 times as long to build as using 2 threads, and roughly 3 times as long to build as using 3 threads.
make -j3 make test sudo make install
If you're running Linux, then always do the following command after installing any library:
You can now download the UHD FPGA Images for this installation.
On Linux, udev handles USB plug and unplug events. The following commands install a udev rule so that non-root users may access the device.
cd ~/uhd/host/utils sudo cp uhd-usrp.rules /etc/udev/rules.d/ sudo udevadm control --reload-rules sudo udevadm trigger
The installation of UHD is now complete. At this point, connect the USRP to the host computer and run:
Install GNU Radio
The next steps will take two or more hours. Be patient. The terminal does show the progress.
Click InstallingGR#From_Source to go to the install instructions.