UHD and GNURadio installation¶
On one hand, the UHD driver is necessary in order to communicate with an USRP device. On the other hand, the development environment GNURadio is also recommended in order to provide several signal processing building blocks operating in a pseudo-real-time fashion.This documentation explains how to install both UHD and GNURadio from the sources with the help of the PyBombs script. The following prerequisites are assumed in the following:
- a GNU/Linux operating system ;
- a user account with administror rights (through sudo) ;
- an Internet connection (if necessary, set
https_proxyenvironment variables appropriately).
Downloading and configuring PyBombs¶
Installing and updating PIP
sudo apt-get install python-pip sudo pip install -U pip sudo pip install PyBOMBS
sudo pip install PyBOMBS
Initiating the default prefix
sudo pybombs prefix init /usr/local -a usrlocal sudo pybombs config default_prefix /usr/local
sudo pybombs recipes add gr-recipes git+https://github.com/gnuradio/gr-recipes.git sudo pybombs recipes add gr-etcetera git+https://github.com/gnuradio/gr-etcetera.git
Installing UHD, GNURadio and other packages
sudo pybombs install uhd gnuradio sudo ldconfig
Update the firmware database¶
In order to make sure that the firmwares are up-to-date, you can run the following instruction.
Setting up real-time scheduling¶
Since the UHD needs a high priority of execution, it is recommended to add the following line to
@usrp - rtprio 99
Hence, it necessary to create the group
usrp and add to this group any user willing to use the USRP hardware.
sudo groupadd usrp sudo adduser <my-login> usrp
At this time, the user shall close and reopen his session. Inside a shell, he can also issue the following instruction
su - <my-login>
The system is now ready for adding an USRP (see documentation for the appropriate model...).