USRP Driver Installation

We now need to install the Ettus UHD driver to properly access the USRP devices. These need to be re-build for the Jetson platform.

Key Resources

The installation guide aims to be self-contained. However, the following resources are useful for troubleshooting and developers working with the Ettus UHD driver:

• Getting Started Guide

• Build Guide

• USB & Transport Guide

• Verification Guide

Note

This is also achieved using the script scripts/install-usrp.sh

Prerequisites

We need to install the following packages to build the UHD driver.

sudo apt-get install \
    autoconf automake build-essential ccache cmake cpufrequtils \
    doxygen ethtool g++ git inetutils-tools libboost-all-dev \
    libncurses5 libncurses5-dev libusb-1.0-0 libusb-1.0-0-dev \
    libusb-dev python3-dev python3-mako python3-numpy python3-requests \
    python3-scipy python3-setuptools python3-ruamel.yaml ninja-build

Note

DPDK support is disabled by default.

Building UHD

For arm64, we need to build the UHD driver from source.

Get source code:

git clone https://github.com/EttusResearch/uhd.git
cd uhd/host

Configure and build:

mkdir build && cd build
cmake -DCMAKE_POLICY_DEFAULT_CMD0167=NEW -GNinja ..
ninja
ninja test
sudo ninja install

Download FPGA images:

sudo /usr/local/lib/uhd/utils/uhd_images_downloader.py

Post-build Configuration

We now need to access the configuration files to properly configure the USRP devices and grant access to the USB devices.

Re-build the linker cache:

sudo ldconfig

Set up USB permissions for non-root users:

sudo cp /usr/local/lib/uhd/utils/uhd-usrp.rules /etc/udev/rules.d/
sudo udevadm control --reload-rules
sudo udevadm trigger

Testing Installation

We can now verify the installation and access the USRP serial number.

Check USB device detection:

lsusb

Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
...
Bus 001 Device 067: ID 2500:0020 Ettus Research LLC USRP B210

Search for UHD devices:

uhd_find_devices

[INFO] [UHD] linux; GNU C++ version 14.1.1 20240720; Boost_108300; UHD_4.7.0.0-0-ga5ed1872
--------------------------------------------------
-- UHD Device 0
--------------------------------------------------
Device Address:
  serial: 32FCXXX
  name: MyB210
  product: B210
  type: b200

Note

Please notice the serial number. It will be used to identify the USRP device in the 5G stack.

Get device details:

sudo uhd_usrp_probe

[INFO] [UHD] linux; GNU C++ version 14.1.1 20240720; Boost_108300; UHD_4.7.0.0-0-ga5ed1872
[INFO] [B200] Loading firmware image: /usr/local/share/uhd/images/usrp_b200_fw.hex...
...
[INFO] [B200] Actually got clock rate 16.000000 MHz.
...
|       Device: B-Series Device
|     _____________________________________________________
|    /
|   |       Mboard: B210
|   |   serial: 32FCXXX
|   |   name: MyB210
|   |   product: 2
|   |   revision: 4
|   |   FW Version: 8.0
|   |   FPGA Version: 16.0
|   |
|   |   Time sources:  none, internal, external, gpsdo
|   |   Clock sources: internal, external, gpsdo
|   |   Sensors: ref_locked
...

And run a final performance test:

/usr/local/lib/uhd/examples/benchmark_rate --rx_rate 10e6 --tx_rate 10e6

[INFO] [UHD] linux; GNU C++ version 14.1.1 20240720; Boost_108300; UHD_4.7.0.0-0-ga5ed1872
...
Benchmark rate summary:
Num received samples:     100235043
Num dropped samples:      0
Num overruns detected:    0
Num transmitted samples:  100062000
Num sequence errors (Tx): 0
Num sequence errors (Rx): 0
Num underruns detected:   0
Num late commands:        0
Num timeouts (Tx):        0
Num timeouts (Rx):        0

Done!