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<article role="main" id="furo-main-content">
<section id="installing">
<span id="id1"></span><h1>Installing<a class="headerlink" href="#installing" title="Link to this heading">¶</a></h1>
<section id="requirements">
<h2>Requirements<a class="headerlink" href="#requirements" title="Link to this heading">¶</a></h2>
<div class="admonition note">
<p class="admonition-title">Note</p>
<p>Full VUnit functionality requires Python (3.8 or higher) and a simulator
supported by the VUnit Python test runner (see list below).
However, VUnit can run with limited functionality entirely within VHDL using
the <a class="reference internal" href="run/user_guide.html"><span class="doc">VHDL test runner</span></a>.</p>
</div>
<section id="language">
<h3>Language<a class="headerlink" href="#language" title="Link to this heading">¶</a></h3>
<p>VUnit supports VHDL (93, 2002, 2008 and 2019),
Verilog and (experimentally) SystemVerilog.</p>
</section>
<section id="platform">
<h3>Platform<a class="headerlink" href="#platform" title="Link to this heading">¶</a></h3>
<p>VUnit is known to work on GNU/Linux, Windows and Mac OS; on x86, x64, armv7 and aarch64.</p>
</section>
<section id="simulator">
<h3>Simulator<a class="headerlink" href="#simulator" title="Link to this heading">¶</a></h3>
<section id="vhdl-only">
<h4>VHDL only<a class="headerlink" href="#vhdl-only" title="Link to this heading">¶</a></h4>
<ul class="simple">
<li><p><a class="reference external" href="https://www.aldec.com/en/products/functional_verification/riviera-pro">Aldec Riviera-PRO</a>: Tested with Riviera-PRO 2015.06, 2015.10, 2016.02, 2016.10 (x64/x86).</p></li>
<li><p><a class="reference external" href="https://www.aldec.com/en/products/fpga_simulation/active-hdl">Aldec Active-HDL</a>: Tested with Active-HDL 9.3, 10.1, 10.2, 10.3 (x64/x86).</p></li>
<li><p><a class="reference external" href="https://github.com/ghdl/ghdl">GHDL</a></p></li>
</ul>
<blockquote>
<div><ul>
<li><p>Tested with LLVM and mcode backends; GCC backend might work aswell.</p></li>
<li><p>Works with versions >= 0.33.</p>
<div class="admonition hint">
<p class="admonition-title">Hint</p>
<p>GHDL is a rolling project, it is therefore recommended to use the latest
<a class="reference external" href="https://github.com/ghdl/ghdl/releases/tag/nightly">nightly release</a> tarball.</p>
</div>
</li>
</ul>
</div></blockquote>
<ul class="simple">
<li><p><a class="reference external" href="https://www.nickg.me.uk/nvc/">NVC</a>: Works with versions >= 1.9.</p></li>
</ul>
<div class="admonition hint">
<p class="admonition-title">Hint</p>
<p>GHDL and NVC support using <a class="reference external" href="http://gtkwave.sourceforge.net/">GTKWave</a> to view waveforms.</p>
</div>
</section>
<section id="vhdl-or-systemverilog">
<h4>VHDL or SystemVerilog<a class="headerlink" href="#vhdl-or-systemverilog" title="Link to this heading">¶</a></h4>
<ul class="simple">
<li><p><a class="reference external" href="http://www.mentor.com/products/fv/modelsim/">Mentor Graphics ModelSim/Questa</a>: Tested with 10.1 - 10.5</p></li>
</ul>
<div class="admonition caution">
<p class="admonition-title">Caution</p>
<ul class="simple">
<li><p><a class="reference external" href="https://www.cadence.com/content/cadence-www/global/en_US/home/tools/system-design-and-verification/simulation-and-testbench-verification/incisive-enterprise-simulator.html">Cadence Incisive</a> (<strong>Experimental</strong>)</p></li>
</ul>
<blockquote>
<div><ul class="simple">
<li><p>Community contribution by <a class="reference external" href="https://github.com/cmarqu">Colin Marquardt</a>.
VUnit maintainers do not have access to this simulator to verify the functionality.</p></li>
<li><p>Run <code class="docutils literal notranslate"><span class="pre">incisive_vhdl_fixup.py</span></code> to remove VHDL constructs that are not
compatible with Incisive.</p></li>
</ul>
</div></blockquote>
</div>
</section>
</section>
</section>
<section id="using-the-python-package-manager">
<span id="installing-pypi"></span><h2>Using the Python Package Manager<a class="headerlink" href="#using-the-python-package-manager" title="Link to this heading">¶</a></h2>
<p>The recommended way to get VUnit is to install the <a class="reference internal" href="release_notes.html#release-latest"><span class="std std-ref">latest stable release</span></a> via <a class="reference external" href="https://pip.pypa.io/en/stable/">pip</a>:</p>
<div class="highlight-console notranslate"><div class="highlight"><pre><span></span><span class="go">> pip install vunit_hdl</span>
</pre></div>
</div>
<p>Once installed, VUnit may be updated to new versions via a similar method:</p>
<div class="highlight-console notranslate"><div class="highlight"><pre><span></span><span class="go">> pip install -U vunit_hdl</span>
</pre></div>
</div>
<p>Occasionally, pre-releases and development versions are available via <a class="reference external" href="https://pip.pypa.io/en/stable/">pip</a>.
These give early access to updates before the next planned release has been fully completed. These are installed
by adding the <code class="docutils literal notranslate"><span class="pre">--pre</span></code> option to the <code class="docutils literal notranslate"><span class="pre">pip</span> <span class="pre">install</span></code> command.</p>
</section>
<section id="using-the-development-version">
<span id="installing-master"></span><h2>Using the Development Version<a class="headerlink" href="#using-the-development-version" title="Link to this heading">¶</a></h2>
<p>Start by cloning our <a class="reference external" href="https://github.com/vunit/vunit/">GIT repository on GitHub</a>:</p>
<div class="highlight-console notranslate"><div class="highlight"><pre><span></span><span class="go">git clone --recurse-submodules https://github.com/VUnit/vunit.git</span>
</pre></div>
</div>
<p>The <code class="docutils literal notranslate"><span class="pre">--recurse-submodules</span></code> option initializes <a class="reference external" href="https://github.com/JimLewis/OSVVM">OSVVM</a> which is included as a submodule in the VUnit repository.</p>
<p>To be able to import <a class="reference internal" href="py/vunit.html#vunit.ui.VUnit" title="vunit.ui.VUnit"><code class="xref py py-class docutils literal notranslate"><span class="pre">VUnit</span></code></a> in your <code class="docutils literal notranslate"><span class="pre">run.py</span></code> script
you need to make it visible to Python or else the following error
occurs.</p>
<div class="highlight-console notranslate"><div class="highlight"><pre><span></span><span class="go">Traceback (most recent call last):</span>
<span class="go"> File "run.py", line 2, in <module></span>
<span class="go"> from vunit import VUnit</span>
<span class="go">ImportError: No module named vunit</span>
</pre></div>
</div>
<p>There are three methods to make VUnit importable in your <code class="docutils literal notranslate"><span class="pre">run.py</span></code> script.:</p>
<ol class="arabic">
<li><p>Install it in your Python environment using:</p>
<div class="highlight-console notranslate"><div class="highlight"><pre><span></span><span class="go">> python setup.py install</span>
</pre></div>
</div>
</li>
<li><p>Set the <code class="docutils literal notranslate"><span class="pre">PYTHONPATH</span></code> environment variable to include the path to
the VUnit repository root directory. Note that you shouldn’t point
to the vunit directory within the root directory.</p></li>
<li><p>Add the following to your <code class="docutils literal notranslate"><span class="pre">run.py</span></code> file <strong>before</strong> the <code class="docutils literal notranslate"><span class="pre">import</span> <span class="pre">vunit</span></code>
statement:</p></li>
</ol>
<div class="highlight-python notranslate"><div class="highlight"><pre><span></span><span class="kn">import</span><span class="w"> </span><span class="nn">sys</span>
<span class="n">sys</span><span class="o">.</span><span class="n">path</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="s2">"/path/to/vunit_repo_root/"</span><span class="p">)</span>
<span class="kn">import</span><span class="w"> </span><span class="nn">vunit</span>
</pre></div>
</div>
</section>
<section id="for-vunit-developers">
<span id="installing-dev"></span><h2>For VUnit Developers<a class="headerlink" href="#for-vunit-developers" title="Link to this heading">¶</a></h2>
<p>For those interested in development of VUnit, it is best to install
VUnit so that the sources from git are installed in-place instead of
to the Python site-packages directory. This can be achieved by using
the <code class="docutils literal notranslate"><span class="pre">-e</span></code> flag with <code class="docutils literal notranslate"><span class="pre">pip</span></code>, or the <code class="docutils literal notranslate"><span class="pre">develop</span></code> option with
<code class="docutils literal notranslate"><span class="pre">setup.py</span></code>, or setting the <code class="docutils literal notranslate"><span class="pre">PYTHONPATH</span></code> environment variable.</p>
<div class="highlight-console notranslate"><div class="highlight"><pre><span></span><span class="go">> git clone https://github.com/VUnit/vunit.git</span>
<span class="go">> cd vunit</span>
<span class="go">> python setup.py develop</span>
<span class="go">or</span>
<span class="go">> pip install -e .</span>
</pre></div>
</div>
<p>By installing VUnit in this manner, the git sources can be edited directly in
your workspace while the <code class="docutils literal notranslate"><span class="pre">VUnit</span></code> package is still globally available in your
Python environment.</p>
</section>
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<ul>
<li><a class="reference internal" href="#">Installing</a><ul>
<li><a class="reference internal" href="#requirements">Requirements</a><ul>
<li><a class="reference internal" href="#language">Language</a></li>
<li><a class="reference internal" href="#platform">Platform</a></li>
<li><a class="reference internal" href="#simulator">Simulator</a><ul>
<li><a class="reference internal" href="#vhdl-only">VHDL only</a></li>
<li><a class="reference internal" href="#vhdl-or-systemverilog">VHDL or SystemVerilog</a></li>
</ul>
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</li>
<li><a class="reference internal" href="#using-the-python-package-manager">Using the Python Package Manager</a></li>
<li><a class="reference internal" href="#using-the-development-version">Using the Development Version</a></li>
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