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libsmu

libsmu contains abstractions for streaming data to and from USB-connected analog interface devices, currently supporting the Analog Devices' ADALM1000. Building off of LibUSB for cross-platform operation, it offers the sourcing of repeated waveforms, configuration of hardware, and measuring of signals.

Python bindings are also provided in the form of the pysmu module. See instructions below for how to build them.

Simple installation

Conda packages

Conda and Anaconda are cross-platform package-management tools that generally focus around python but can support any language or package generally. You can find documentation on the libsmu conda package here .

Linux

Download the specific libsmu .deb package for your Linux distribution from the Releases section. Currently we are supporting Ubuntu 16, 18 and 20. The package name should start with libsmu and contain the OS version. Go to the folder you downloaded the package in and open a terminal, then run the following command:

analog@analog:~$ sudo apt install -f ./<libsmu_package_name>.deb

Python bindings for Linux

If you want to install pysmu (the Python bindings for libsmu), you can download the specific .deb package. Currently we are supporting the default Python versions for each Ubuntu version (3.5 for Ubuntu 16, 3.6 for Ubuntu 18, 3.8 for Ubuntu 20). The package name should start with python3 and contain the OS version. These packages contain the Python bindings for libsmu. Go to the folder you downloaded the package in and open a terminal, then run the following command:

analog@analog:~$ sudo apt install -f ./<python_package_name>.deb

MacOS

Download the specific libsmu .pkg package for your MacOS distribution from the Releases section. Currently we are supporting MacOS 10.13, 10.14 and 10.15. The package name should start with libsmu and contain the MacOS version.

Open a terminal and run the following command which will install only the base library in /Library/Frameworks.

analog@analog:~$ sudo installer -pkg /path/to/<libsmu_package_name>.pkg -target /

A different way to install libsmu on MacOS is by using the .tar.gz located in the Releases section. This will install the .dylib (libraries) into system paths (usr/local) and it will also install the smu CLI.

tar -xzvf <libsmu_package_name>.tar.gz --strip=3 -C /usr/local

Based on this base library installation, you can install the Python bindings manually for the desired Python version. Check the Python section below.

Build instructions for libsmu on Linux

Install Dependencies

Install prerequisites

analog@analog:~$ sudo apt-get update
analog@analog:~$ sudo apt-get install libusb-1.0-0-dev libboost-all-dev cmake pkg-config

Install to build Python bindings

analog@analog:~$ sudo apt-get install python3 python3-setuptools python3-pip
analog@analog:~$ pip3 install --upgrade pip
analog@analog:~$ sudo pip3 install cython

Install to build documentation

analog@analog:~$ sudo apt-get install doxygen

Build instructions for libsmu on MacOS

Install Dependencies

Install prerequisites

analog@analog:~$ brew update
analog@analog:~$ brew install libusb cmake pkg-config boost
(optional) analog@analog:~$ brew link --overwrite boost

Install to build Python bindings

analog@analog:~$ brew install python3
analog@analog:~$ pip3 install --upgrade pip
analog@analog:~$ pip3 install cython

Setup tools and pip should be included in the "python3" package.

Install to build documentation

analog@analog:~$ brew install doxygen

Clone, configure and build

analog@analog:~$ git clone https://github.com/analogdevicesinc/libsmu.git
analog@analog:~$ cd libsmu 

Options:

CMake Options Default Description
BUILD_CLI ON Build command line smu application
BUILD_PYTHON ON Build python bindings
WITH_DOC OFF Generate documentation with Doxygen and Sphinx
BUILD_EXAMPLES OFF Build examples
USE_PYTHON2 ON By default, CMake will search for Python 2 or 3. If USE_PYTHON2 is set to OFF, then only Python3 will be used.
INSTALL_UDEV_RULES ON Install a udev rule for detection of USB devices

Configure via cmake:

analog@analog:~$ mkdir build && cd build
analog@analog:~$ cmake .. -DBUILD_PYTHON=ON

Compile:

analog@analog:~$ make

Install

If -DBUILD_PYTHON=ON (from the above options) is specified, this step will also install the Python Bindings using the Python version detected at the CMake configuration step.

analog@analog:~$ sudo make install

Docs

Doxygen-based documentation is available at https://analogdevicesinc.github.io/libsmu/.

This can also be built locally if enabled using the CMake option mentioned above. After make is run, the generated documentation files can then be found in the html subdir of the build directory.

Testing

The Google Test framework is used to run various streaming tests. Make sure it's installed on the host system and then use the following to build and run tests:

analog@analog:~$ cmake -DBUILD_TESTS=ON ..
analog@analog:~$ make check

Note that at least one device should be inserted to the system for the checks to run properly.

Python

Python Bindings are enabled by default and can be disabled using the CMake option mentioned above.

Note that this will build only one version of Python for the first supported implementation it finds installed on the system. To build them for other versions it's easiest to build them manually via the setup.py script in the regular python manner if libsmu has already been built and/or installed on the host machine.

analog@analog:~$ git clone https://github.com/analogdevicesinc/libsmu.git
analog@analog:~$ cd libsmu/bindings/python
analog@analog:~$ python3 setup.py build
analog@analog:~$ sudo python3 setup.py install

Linux FAQ

By default, libsmu is installed into various directories inside /usr/local which implies that the runtime linker cache often needs to be regenerated, otherwise runtime linking errors will occur.

Regenerate runtime linker cache after install:

analog@analog:~$ sudo ldconfig

If the same errors still happen, make sure the directory the libsmu library is installed to is in the sourced files for /etc/ld.so.conf before running ldconfig.

In addition, the udev rules file (53-adi-m1k-usb.rules) is installed by default to give regular users access to devices supported by libsmu. Udev has to be forced to reload its rules files in order to use the new file without rebooting the system.

Reload udev rules files:

analog@analog:~$ sudo udevadm control --reload-rules

Finally, for python support on Debian/Ubuntu derived distros users will have to export PYTHONPATH or perform a similar method since hand-built modules are installed to the site-packages directory (which isn't in the standard search list) while distro provided modules are placed in dist-packages.

Add pysmu module directory to python search path:

$ export PYTHONPATH=/usr/local/lib/python3.7/site-packages:${PYTHONPATH}

Note the command will have to be altered for targets with different bitness or python versions.

Windows

On Windows, it's easiest to use the provided installers, libsmu-setup-x86.exe and libsmu-setup-x64.exe that install either 32 or 64 bit support, respectively. During the install process options are provided to install drivers, Python bindings and Visual Studio development support.