content/docs/12.7.0/quickstart/install.html - nuttx-website - Git at Google

 <!--
  Documentation/_templates/layout.html

  Licensed to the Apache Software Foundation (ASF) under one or more
  contributor license agreements.  See the NOTICE file distributed with
  this work for additional information regarding copyright ownership.  The
  ASF licenses this file to you under the Apache License, Version 2.0 (the
  "License"); you may not use this file except in compliance with the
  License.  You may obtain a copy of the License at

    http://www.apache.org/licenses/LICENSE-2.0

  Unless required by applicable law or agreed to in writing, software
  distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
  WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.  See the
  License for the specific language governing permissions and limitations
  under the License.
 -->


 <!DOCTYPE html>
 <html class="writer-html5" lang="en">
 <head>
   <meta charset="utf-8" /><meta name="generator" content="Docutils 0.18.1: http://docutils.sourceforge.net/" />

   <meta name="viewport" content="width=device-width, initial-scale=1.0" />
   <title>Installing &mdash; NuttX latest documentation</title>
       <link rel="stylesheet" type="text/css" href="../_static/pygments.css" />
       <link rel="stylesheet" type="text/css" href="../_static/css/theme.css" />
       <link rel="stylesheet" type="text/css" href="../_static/copybutton.css" />
       <link rel="stylesheet" type="text/css" href="../_static/tabs.css" />
       <link rel="stylesheet" type="text/css" href="../_static/custom.css" />


     <link rel="shortcut icon" href="../_static/favicon.ico"/>
       <script src="../_static/jquery.js"></script>
       <script src="../_static/_sphinx_javascript_frameworks_compat.js"></script>
       <script data-url_root="../" id="documentation_options" src="../_static/documentation_options.js"></script>
       <script src="../_static/doctools.js"></script>
       <script src="../_static/sphinx_highlight.js"></script>
       <script src="../_static/clipboard.min.js"></script>
       <script src="../_static/copybutton.js"></script>
       <script src="../_static/tabs.js"></script>
     <script src="../_static/js/theme.js"></script>
     <link rel="index" title="Index" href="../genindex.html" />
     <link rel="search" title="Search" href="../search.html" />
     <link rel="next" title="Compiling with Make" href="compiling_make.html" />
     <link rel="prev" title="Getting Started" href="index.html" />
 </head>

 <body class="wy-body-for-nav">
   <div class="wy-grid-for-nav">
     <nav data-toggle="wy-nav-shift" class="wy-nav-side">
       <div class="wy-side-scroll">
         <div class="wy-side-nav-search" >

     <a href="../index.html" class="icon icon-home"> NuttX


   </a>

   <!-- this version selector is quite ugly, should be probably replaced by something
        more modern -->

   <div class="version-selector">
     <select onchange="javascript:location.href = this.value;">

     <option value="../../latest" selected="selected">latest</option>

     <option value="../../10.0.0" >10.0.0</option>

     <option value="../../10.0.1" >10.0.1</option>

     <option value="../../10.1.0" >10.1.0</option>

     <option value="../../10.2.0" >10.2.0</option>

     <option value="../../10.3.0" >10.3.0</option>

     <option value="../../11.0.0" >11.0.0</option>

     <option value="../../12.0.0" >12.0.0</option>

     <option value="../../12.1.0" >12.1.0</option>

     <option value="../../12.2.0" >12.2.0</option>

     <option value="../../12.2.1" >12.2.1</option>

     <option value="../../12.3.0" >12.3.0</option>

     <option value="../../12.4.0" >12.4.0</option>

     <option value="../../12.5.0" >12.5.0</option>

     <option value="../../12.5.1" >12.5.1</option>

     <option value="../../12.6.0" >12.6.0</option>

     <option value="../../12.7.0" >12.7.0</option>

     <option value="../../12.8.0" >12.8.0</option>

     <option value="../../12.9.0" >12.9.0</option>

     <option value="../../12.10.0" >12.10.0</option>

     <option value="../../12.11.0" >12.11.0</option>

     </select>
   </div>


 <div role="search">
   <form id="rtd-search-form" class="wy-form" action="../search.html" method="get">
     <input type="text" name="q" placeholder="Search docs" aria-label="Search docs" />
     <input type="hidden" name="check_keywords" value="yes" />
     <input type="hidden" name="area" value="default" />
   </form>
 </div>

         </div><div class="wy-menu wy-menu-vertical" data-spy="affix" role="navigation" aria-label="Navigation menu">
               <p class="caption" role="heading"><span class="caption-text">Table of Contents</span></p>
 <ul class="current">
 <li class="toctree-l1"><a class="reference internal" href="../index.html">Home</a></li>
 <li class="toctree-l1"><a class="reference internal" href="../introduction/index.html">Introduction</a></li>
 <li class="toctree-l1 current"><a class="reference internal" href="index.html">Getting Started</a><ul class="current">
 <li class="toctree-l2 current"><a class="current reference internal" href="#">Installing</a><ul>
 <li class="toctree-l3"><a class="reference internal" href="#prerequisites">Prerequisites</a><ul>
 <li class="toctree-l4"><a class="reference internal" href="#kconfig-frontend">KConfig frontend</a></li>
 </ul>
 </li>
 <li class="toctree-l3"><a class="reference internal" href="#toolchain">Toolchain</a></li>
 <li class="toctree-l3"><a class="reference internal" href="#download-nuttx">Download NuttX</a></li>
 </ul>
 </li>
 <li class="toctree-l2"><a class="reference internal" href="compiling_make.html">Compiling with Make</a></li>
 <li class="toctree-l2"><a class="reference internal" href="compiling_cmake.html">Compiling with CMake</a></li>
 <li class="toctree-l2"><a class="reference internal" href="running.html">Running</a></li>
 <li class="toctree-l2"><a class="reference internal" href="configuring.html">Configuring</a></li>
 <li class="toctree-l2"><a class="reference internal" href="debugging.html">Debugging</a></li>
 <li class="toctree-l2"><a class="reference internal" href="organization.html">Directory Structure</a></li>
 </ul>
 </li>
 <li class="toctree-l1"><a class="reference internal" href="../contributing/index.html">Contributing</a></li>
 <li class="toctree-l1"><a class="reference internal" href="../introduction/inviolables.html">The Inviolable Principles of NuttX</a></li>
 <li class="toctree-l1"><a class="reference internal" href="../platforms/index.html">Supported Platforms</a></li>
 <li class="toctree-l1"><a class="reference internal" href="../components/index.html">OS Components</a></li>
 <li class="toctree-l1"><a class="reference internal" href="../applications/index.html">Applications</a></li>
 <li class="toctree-l1"><a class="reference internal" href="../implementation/index.html">Implementation Details</a></li>
 <li class="toctree-l1"><a class="reference internal" href="../reference/index.html">API Reference</a></li>
 <li class="toctree-l1"><a class="reference internal" href="../faq/index.html">FAQ</a></li>
 <li class="toctree-l1"><a class="reference internal" href="../guides/index.html">Guides</a></li>
 <li class="toctree-l1"><a class="reference internal" href="../glossary.html">Glossary</a></li>
 <li class="toctree-l1"><a class="reference internal" href="../logos/index.html">NuttX Logos</a></li>
 </ul>

         </div>
       </div>
     </nav>

     <section data-toggle="wy-nav-shift" class="wy-nav-content-wrap"><nav class="wy-nav-top" aria-label="Mobile navigation menu" >
           <i data-toggle="wy-nav-top" class="fa fa-bars"></i>
           <a href="../index.html">NuttX</a>
       </nav>

       <div class="wy-nav-content">
         <div class="rst-content">
           <div role="navigation" aria-label="Page navigation">
   <ul class="wy-breadcrumbs">
       <li><a href="../index.html" class="icon icon-home" aria-label="Home"></a></li>
           <li class="breadcrumb-item"><a href="index.html">Getting Started</a></li>
       <li class="breadcrumb-item active">Installing</li>
       <li class="wy-breadcrumbs-aside">
             <a href="../_sources/quickstart/install.rst.txt" rel="nofollow"> View page source</a>
       </li>
   </ul>
   <hr/>
 </div>
           <div role="main" class="document" itemscope="itemscope" itemtype="http://schema.org/Article">
            <div itemprop="articleBody">

   <section id="installing">
 <span id="install"></span><h1>Installing<a class="headerlink" href="#installing" title="Permalink to this heading"></a></h1>
 <p>The first step to get started with NuttX is to install a series of required tools,
 a toolchain for the architecture you will be working with and, finally, download
 NuttX source code itself.</p>
 <section id="prerequisites">
 <h2>Prerequisites<a class="headerlink" href="#prerequisites" title="Permalink to this heading"></a></h2>
 <p>First, install the following set of system dependencies according to your Operating System:</p>
 <div class="sphinx-tabs docutils container">
 <div aria-label="Tabbed content" class="closeable" role="tablist"><button aria-controls="panel-0-0-0" aria-selected="true" class="sphinx-tabs-tab" id="tab-0-0-0" name="0-0" role="tab" tabindex="0">Linux (debian based)</button><button aria-controls="panel-0-0-1" aria-selected="false" class="sphinx-tabs-tab" id="tab-0-0-1" name="0-1" role="tab" tabindex="-1">Linux (Fedora / RPM based)</button><button aria-controls="panel-0-0-2" aria-selected="false" class="sphinx-tabs-tab" id="tab-0-0-2" name="0-2" role="tab" tabindex="-1">macOS</button><button aria-controls="panel-0-0-3" aria-selected="false" class="sphinx-tabs-tab" id="tab-0-0-3" name="0-3" role="tab" tabindex="-1">Windows / WSL</button><button aria-controls="panel-0-0-4" aria-selected="false" class="sphinx-tabs-tab" id="tab-0-0-4" name="0-4" role="tab" tabindex="-1">Windows/Cygwin</button></div><div aria-labelledby="tab-0-0-0" class="sphinx-tabs-panel" id="panel-0-0-0" name="0-0" role="tabpanel" tabindex="0"><p>Run the following command to install packages:</p>
 <div class="highlight-console notranslate"><div class="highlight"><pre><span></span><span class="gp">$ </span>sudo<span class="w"> </span>apt<span class="w"> </span>install<span class="w"> </span><span class="se">\</span>
 <span class="gp">$ </span>bison<span class="w"> </span>flex<span class="w"> </span>gettext<span class="w"> </span>texinfo<span class="w"> </span>libncurses5-dev<span class="w"> </span>libncursesw5-dev<span class="w"> </span>xxd<span class="w"> </span><span class="se">\</span>
 <span class="gp">$ </span>git<span class="w"> </span>gperf<span class="w"> </span>automake<span class="w"> </span>libtool<span class="w"> </span>pkg-config<span class="w"> </span>build-essential<span class="w"> </span>gperf<span class="w"> </span>genromfs<span class="w"> </span><span class="se">\</span>
 <span class="gp">$ </span>libgmp-dev<span class="w"> </span>libmpc-dev<span class="w"> </span>libmpfr-dev<span class="w"> </span>libisl-dev<span class="w"> </span>binutils-dev<span class="w"> </span>libelf-dev<span class="w"> </span><span class="se">\</span>
 <span class="gp">$ </span>libexpat1-dev<span class="w"> </span>gcc-multilib<span class="w"> </span>g++-multilib<span class="w"> </span>picocom<span class="w"> </span>u-boot-tools<span class="w"> </span>util-linux
 </pre></div>
 </div>
 </div><div aria-labelledby="tab-0-0-1" class="sphinx-tabs-panel" hidden="true" id="panel-0-0-1" name="0-1" role="tabpanel" tabindex="0"><p>Run the following command to install packages:</p>
 <div class="highlight-console notranslate"><div class="highlight"><pre><span></span><span class="gp">$ </span>sudo<span class="w"> </span>dnf<span class="w"> </span>install<span class="w"> </span><span class="se">\</span>
 <span class="gp">$ </span>bison<span class="w"> </span>flex<span class="w"> </span>gettext<span class="w"> </span>texinfo<span class="w"> </span>ncurses-devel<span class="w"> </span>ncurses<span class="w"> </span>ncurses-compat-libs<span class="w"> </span><span class="se">\</span>
 <span class="gp">$ </span>git<span class="w"> </span>gperf<span class="w"> </span>automake<span class="w"> </span>libtool<span class="w"> </span>pkgconfig<span class="w"> </span>@development-tools<span class="w"> </span>gperf<span class="w"> </span>genromfs<span class="w"> </span><span class="se">\</span>
 <span class="gp">$ </span>gmp-devel<span class="w"> </span>mpfr-devel<span class="w"> </span>libmpc-devel<span class="w"> </span>isl-devel<span class="w"> </span>binutils-devel<span class="w"> </span>elfutils-libelf-devel<span class="w"> </span><span class="se">\</span>
 <span class="gp">$ </span>expat-devel<span class="w"> </span>gcc-c++<span class="w"> </span>g++<span class="w"> </span>picocom<span class="w"> </span>uboot-tools<span class="w"> </span>util-linux
 </pre></div>
 </div>
 </div><div aria-labelledby="tab-0-0-2" class="sphinx-tabs-panel" hidden="true" id="panel-0-0-2" name="0-2" role="tabpanel" tabindex="0"><p>Run the following command to install packages:</p>
 <div class="highlight-console notranslate"><div class="highlight"><pre><span></span><span class="gp">$ </span>brew<span class="w"> </span>tap<span class="w"> </span>discoteq/discoteq
 <span class="gp">$ </span>brew<span class="w"> </span>install<span class="w"> </span>flock
 <span class="gp">$ </span>brew<span class="w"> </span>install<span class="w"> </span>x86_64-elf-gcc<span class="w">  </span><span class="c1"># Used by simulator</span>
 <span class="gp">$ </span>brew<span class="w"> </span>install<span class="w"> </span>u-boot-tools<span class="w">  </span><span class="c1"># Some platform integrate with u-boot</span>
 </pre></div>
 </div>
 </div><div aria-labelledby="tab-0-0-3" class="sphinx-tabs-panel" hidden="true" id="panel-0-0-3" name="0-3" role="tabpanel" tabindex="0"><p>If you are are building Apache NuttX on Windows and using WSL follow
 that installation guide for Linux.  This has been verified against the
 Ubuntu 18.04 version.</p>
 <p>There may be complications interacting with
 programming tools over USB.  Recently support for USBIP was added to WSL 2
 which has been used with the STM32 platform, but it is not trivial to configure:
 <a class="reference external" href="https://learn.microsoft.com/en-us/windows/wsl/connect-usb">https://learn.microsoft.com/en-us/windows/wsl/connect-usb</a></p>
 </div><div aria-labelledby="tab-0-0-4" class="sphinx-tabs-panel" hidden="true" id="panel-0-0-4" name="0-4" role="tabpanel" tabindex="0"><p>Download and install <a class="reference external" href="https://www.cygwin.com/">Cygwin</a> using the minimal
 installation in addition to these packages:</p>
 <div class="highlight-none notranslate"><div class="highlight"><pre><span></span>make              bison             libmpc-devel
 gcc-core          byacc             automake-1.15
 gcc-g++           gperf             libncurses-devel
 flex              gdb               libmpfr-devel
 git               unzip             zlib-devel
 </pre></div>
 </div>
 </div></div>
 <section id="kconfig-frontend">
 <h3>KConfig frontend<a class="headerlink" href="#kconfig-frontend" title="Permalink to this heading"></a></h3>
 <p>NuttX configuration system uses <a class="reference external" href="https://www.kernel.org/doc/Documentation/kbuild/kconfig-language.txt">KConfig</a>
 which is exposed via a series of interactive menu-based <em>frontends</em>, part of the
 <code class="docutils literal notranslate"><span class="pre">kconfig-frontends</span></code> package. Depending on your OS you may use a precompiled
 package or you will have to build it from source, which is available in the
 <a class="reference external" href="https://bitbucket.org/nuttx/tools/src/master/kconfig-frontends/">NuttX tools repository</a>:</p>
 <div class="sphinx-tabs docutils container">
 <div aria-label="Tabbed content" class="closeable" role="tablist"><button aria-controls="panel-1-VWJ1bnR1IDIwLjA0IExUUyBhbmQgbGF0ZXI=" aria-selected="true" class="sphinx-tabs-tab code-tab group-tab" id="tab-1-VWJ1bnR1IDIwLjA0IExUUyBhbmQgbGF0ZXI=" name="VWJ1bnR1IDIwLjA0IExUUyBhbmQgbGF0ZXI=" role="tab" tabindex="0">Ubuntu 20.04 LTS and later</button><button aria-controls="panel-1-VWJ1bnR1IDE4LjA0IExUUyBhbmQgZWFybGllcg==" aria-selected="false" class="sphinx-tabs-tab code-tab group-tab" id="tab-1-VWJ1bnR1IDE4LjA0IExUUyBhbmQgZWFybGllcg==" name="VWJ1bnR1IDE4LjA0IExUUyBhbmQgZWFybGllcg==" role="tab" tabindex="-1">Ubuntu 18.04 LTS and earlier</button><button aria-controls="panel-1-RmVkb3Jh" aria-selected="false" class="sphinx-tabs-tab code-tab group-tab" id="tab-1-RmVkb3Jh" name="RmVkb3Jh" role="tab" tabindex="-1">Fedora</button><button aria-controls="panel-1-bWFjT1M=" aria-selected="false" class="sphinx-tabs-tab code-tab group-tab" id="tab-1-bWFjT1M=" name="bWFjT1M=" role="tab" tabindex="-1">macOS</button></div><div aria-labelledby="tab-1-VWJ1bnR1IDIwLjA0IExUUyBhbmQgbGF0ZXI=" class="sphinx-tabs-panel code-tab group-tab" id="panel-1-VWJ1bnR1IDIwLjA0IExUUyBhbmQgbGF0ZXI=" name="VWJ1bnR1IDIwLjA0IExUUyBhbmQgbGF0ZXI=" role="tabpanel" tabindex="0"><div class="highlight-console notranslate"><div class="highlight"><pre><span></span><span class="gp">$ </span>sudo<span class="w"> </span>apt<span class="w"> </span>install<span class="w"> </span>kconfig-frontends
 </pre></div>
 </div>
 </div><div aria-labelledby="tab-1-VWJ1bnR1IDE4LjA0IExUUyBhbmQgZWFybGllcg==" class="sphinx-tabs-panel code-tab group-tab" hidden="true" id="panel-1-VWJ1bnR1IDE4LjA0IExUUyBhbmQgZWFybGllcg==" name="VWJ1bnR1IDE4LjA0IExUUyBhbmQgZWFybGllcg==" role="tabpanel" tabindex="0"><div class="highlight-console notranslate"><div class="highlight"><pre><span></span><span class="gp">$ </span>git<span class="w"> </span>clone<span class="w"> </span>https://bitbucket.org/nuttx/tools.git
 <span class="gp">$ </span><span class="nb">cd</span><span class="w"> </span>tools/kconfig-frontends
 <span class="gp">$ </span>./configure<span class="w"> </span>--enable-mconf<span class="w"> </span>--disable-nconf<span class="w"> </span>--disable-gconf<span class="w"> </span>--disable-qconf
 <span class="gp">$ </span>make
 <span class="gp">$ </span>make<span class="w"> </span>install
 </pre></div>
 </div>
 </div><div aria-labelledby="tab-1-RmVkb3Jh" class="sphinx-tabs-panel code-tab group-tab" hidden="true" id="panel-1-RmVkb3Jh" name="RmVkb3Jh" role="tabpanel" tabindex="0"><div class="highlight-console notranslate"><div class="highlight"><pre><span></span><span class="gp">$ </span>git<span class="w"> </span>clone<span class="w"> </span>https://bitbucket.org/nuttx/tools.git
 <span class="gp">$ </span><span class="nb">cd</span><span class="w"> </span>tools/kconfig-frontends
 <span class="gp">$ </span>./configure<span class="w"> </span>--enable-mconf<span class="w"> </span>--disable-nconf<span class="w"> </span>--disable-gconf<span class="w"> </span>--disable-qconf
 <span class="gp">$ </span>aclocal
 <span class="gp">$ </span>automake
 <span class="gp">$ </span>make
 <span class="gp">$ </span>sudo<span class="w"> </span>make<span class="w"> </span>install
 </pre></div>
 </div>
 </div><div aria-labelledby="tab-1-bWFjT1M=" class="sphinx-tabs-panel code-tab group-tab" hidden="true" id="panel-1-bWFjT1M=" name="bWFjT1M=" role="tabpanel" tabindex="0"><div class="highlight-console notranslate"><div class="highlight"><pre><span></span><span class="gp">$ </span>git<span class="w"> </span>clone<span class="w"> </span>https://bitbucket.org/nuttx/tools.git
 <span class="gp">$ </span><span class="nb">cd</span><span class="w"> </span>tools/kconfig-frontends
 <span class="gp">$ </span>patch<span class="w"> </span>&lt;<span class="w"> </span>../kconfig-macos.diff<span class="w"> </span>-p<span class="w"> </span><span class="m">1</span>
 <span class="gp">$ </span>./configure<span class="w"> </span>--enable-mconf<span class="w"> </span>--disable-shared<span class="w"> </span>--enable-static<span class="w"> </span>--disable-gconf<span class="w"> </span>--disable-qconf<span class="w"> </span>--disable-nconf
 <span class="gp">$ </span>make
 <span class="gp">$ </span>sudo<span class="w"> </span>make<span class="w"> </span>install
 </pre></div>
 </div>
 </div></div>
 <p>NuttX also supports <a class="reference external" href="https://github.com/ulfalizer/Kconfiglib">kconfiglib</a> by
 default, which is a Kconfig tool implemented in Python 2/3. Compared with
 <code class="docutils literal notranslate"><span class="pre">kconfig-frontends</span></code>, kconfiglib provides NuttX with the possibility of
 multi-platform support(configure NuttX in Windows native/Visual Studio), and also
 <code class="docutils literal notranslate"><span class="pre">kconfiglib</span></code> has a stronger Kconfig syntax check, this will help developers to avoid
 some Kconfig syntax errors.  Install kconfiglib via following command:</p>
 <div class="highlight-shell notranslate"><div class="highlight"><pre><span></span>pip<span class="w"> </span>install<span class="w"> </span>kconfiglib
 </pre></div>
 </div>
 <p>If you are a working on Windows, which also need the support of windows-curses:</p>
 <div class="highlight-shell notranslate"><div class="highlight"><pre><span></span>pip<span class="w"> </span>install<span class="w"> </span>windows-curses
 </pre></div>
 </div>
 </section>
 </section>
 <section id="toolchain">
 <h2>Toolchain<a class="headerlink" href="#toolchain" title="Permalink to this heading"></a></h2>
 <p>To build Apache NuttX you need the appropriate toolchain
 according to your target platform. Some Operating Systems
 such as Linux distribute toolchains for various architectures.
 This is usually an easy choice however you should be aware
 that in some cases the version offered by your OS may have
 problems and it may be better to use a widely used build from
 another source.</p>
 <p>The following example shows how to install a toolchain for
 ARM architecture:</p>
 <div class="sphinx-tabs docutils container">
 <div aria-label="Tabbed content" class="closeable" role="tablist"><button aria-controls="panel-2-VWJ1bnR1IChkZWIp" aria-selected="true" class="sphinx-tabs-tab code-tab group-tab" id="tab-2-VWJ1bnR1IChkZWIp" name="VWJ1bnR1IChkZWIp" role="tab" tabindex="0">Ubuntu (deb)</button><button aria-controls="panel-2-2-0" aria-selected="false" class="sphinx-tabs-tab" id="tab-2-2-0" name="2-0" role="tab" tabindex="-1">macOS</button><button aria-controls="panel-2-2-1" aria-selected="false" class="sphinx-tabs-tab" id="tab-2-2-1" name="2-1" role="tab" tabindex="-1">From arm.com</button></div><div aria-labelledby="tab-2-VWJ1bnR1IChkZWIp" class="sphinx-tabs-panel code-tab group-tab" id="panel-2-VWJ1bnR1IChkZWIp" name="VWJ1bnR1IChkZWIp" role="tabpanel" tabindex="0"><div class="highlight-console notranslate"><div class="highlight"><pre><span></span><span class="gp">$ </span>sudo<span class="w"> </span>apt<span class="w"> </span>install<span class="w"> </span>gcc-arm-none-eabi<span class="w"> </span>binutils-arm-none-eabi
 </pre></div>
 </div>
 </div><div aria-labelledby="tab-2-2-0" class="sphinx-tabs-panel" hidden="true" id="panel-2-2-0" name="2-0" role="tabpanel" tabindex="0"><p>For 32 bit ARM targets, such as STM32:</p>
 <div class="highlight-console notranslate"><div class="highlight"><pre><span></span><span class="gp">$ </span>brew<span class="w"> </span>install<span class="w"> </span>--cask<span class="w"> </span>gcc-arm-embedded
 </pre></div>
 </div>
 <p>For 64 bit ARM targets, such as Allwinner A64:</p>
 <div class="highlight-console notranslate"><div class="highlight"><pre><span></span><span class="gp">$ </span>brew<span class="w"> </span>install<span class="w"> </span>--cask<span class="w"> </span>gcc-aarch64-embedded
 </pre></div>
 </div>
 </div><div aria-labelledby="tab-2-2-1" class="sphinx-tabs-panel" hidden="true" id="panel-2-2-1" name="2-1" role="tabpanel" tabindex="0"><p>First, create a directory to hold the toolchain:</p>
 <div class="highlight-console notranslate"><div class="highlight"><pre><span></span><span class="gp">$ </span>usermod<span class="w"> </span>-a<span class="w"> </span>-G<span class="w"> </span>users<span class="w"> </span><span class="nv">$USER</span>
 <span class="gp">$ </span><span class="c1"># get a login shell that knows we&#39;re in this group:</span>
 <span class="gp">$ </span>su<span class="w"> </span>-<span class="w"> </span><span class="nv">$USER</span>
 <span class="gp">$ </span>sudo<span class="w"> </span>mkdir<span class="w"> </span>/opt/gcc
 <span class="gp">$ </span>sudo<span class="w"> </span>chgrp<span class="w"> </span>-R<span class="w"> </span>users<span class="w"> </span>/opt/gcc
 <span class="gp">$ </span>sudo<span class="w"> </span>chmod<span class="w"> </span>-R<span class="w"> </span>u+rw<span class="w"> </span>/opt/gcc
 <span class="gp">$ </span><span class="nb">cd</span><span class="w"> </span>/opt/gcc
 </pre></div>
 </div>
 <p>Download and extract toolchain:</p>
 <div class="highlight-console notranslate"><div class="highlight"><pre><span></span><span class="gp">$ </span><span class="nv">HOST_PLATFORM</span><span class="o">=</span>x86_64-linux<span class="w">   </span><span class="c1"># use &#39;aarch64-linux&#39; for ARM64 Linux, or &#39;mac&#39; for Intel macOS</span>
 <span class="gp">$ </span><span class="c1"># For Windows there is a zip instead (gcc-arm-none-eabi-10.3-2021.10-win32.zip)</span>
 <span class="gp">$ </span>curl<span class="w"> </span>-L<span class="w"> </span>-O<span class="w"> </span>https://armkeil.blob.core.windows.net/developer/Files/downloads/gnu-rm/10.3-2021.10/gcc-arm-none-eabi-10.3-2021.10-<span class="si">${</span><span class="nv">HOST_PLATFORM</span><span class="si">}</span>.tar.bz2
 <span class="gp">$ </span>tar<span class="w"> </span>xf<span class="w"> </span>gcc-arm-none-eabi-10.3-2021.10-<span class="si">${</span><span class="nv">HOST_PLATFORM</span><span class="si">}</span>.tar.bz2
 </pre></div>
 </div>
 <p>Add the toolchain to your <cite>PATH</cite>:</p>
 <div class="highlight-console notranslate"><div class="highlight"><pre><span></span><span class="gp">$ </span><span class="nb">echo</span><span class="w"> </span><span class="s2">&quot;export PATH=/opt/gcc/gcc-arm-none-eabi-10.3-2021.10/bin:</span><span class="nv">$PATH</span><span class="s2">&quot;</span><span class="w"> </span>&gt;&gt;<span class="w"> </span>~/.bashrc
 </pre></div>
 </div>
 <p>You can edit your shell’s rc files if you don’t use bash.</p>
 </div></div>
 <div class="admonition tip">
 <p class="admonition-title">Tip</p>
 <p>There are hints on how to get the latest tool chains for most supported
 architectures in the Apache NuttX CI helper
 <a class="reference external" href="https://github.com/apache/nuttx/tree/master/tools/ci/cibuild.sh">script</a>
 and Docker <a class="reference external" href="https://github.com/apache/nuttx/tree/master/tools/ci/docker/linux/Dockerfile">container</a></p>
 </div>
 <div class="admonition-todo admonition" id="id1">
 <p class="admonition-title">Todo</p>
 <p>Required toolchain should be part of each arch documentation (see <a class="reference external" href="https://github.com/apache/nuttx/issues/2409">relevant issue</a>).</p>
 </div>
 </section>
 <section id="download-nuttx">
 <h2>Download NuttX<a class="headerlink" href="#download-nuttx" title="Permalink to this heading"></a></h2>
 <p>Apache NuttX is actively developed on GitHub. There are two main repositories,
 <a class="reference external" href="https://github.com/apache/nuttx">nuttx</a> and <a class="reference external" href="https://github.com/apache/nuttx-apps">apps</a>,
 where the latter is technically optional (but recommended for complete set of
 features). If you intend to contribute changes, you need the absolute latest
 version or you simply prefer to work using git, you should clone these
 repositories (recommended). Otherwise you can choose to download any
 <a class="reference external" href="https://nuttx.apache.org/download/">stable release</a> archive.</p>
 <div class="sphinx-tabs docutils container">
 <div aria-label="Tabbed content" class="closeable" role="tablist"><button aria-controls="panel-3-3-0" aria-selected="true" class="sphinx-tabs-tab" id="tab-3-3-0" name="3-0" role="tab" tabindex="0">Clone git repositories</button><button aria-controls="panel-3-3-1" aria-selected="false" class="sphinx-tabs-tab" id="tab-3-3-1" name="3-1" role="tab" tabindex="-1">Download stable release</button></div><div aria-labelledby="tab-3-3-0" class="sphinx-tabs-panel" id="panel-3-3-0" name="3-0" role="tabpanel" tabindex="0"><div class="highlight-console notranslate"><div class="highlight"><pre><span></span><span class="gp">$ </span>mkdir<span class="w"> </span>nuttxspace
 <span class="gp">$ </span><span class="nb">cd</span><span class="w"> </span>nuttxspace
 <span class="gp">$ </span>git<span class="w"> </span>clone<span class="w"> </span>https://github.com/apache/nuttx.git<span class="w"> </span>nuttx
 <span class="gp">$ </span>git<span class="w"> </span>clone<span class="w"> </span>https://github.com/apache/nuttx-apps<span class="w"> </span>apps
 </pre></div>
 </div>
 <p>The development source code is also available as a compressed archive, should you need it:</p>
 <div class="highlight-console notranslate"><div class="highlight"><pre><span></span><span class="gp">$ </span>mkdir<span class="w"> </span>nuttxspace
 <span class="gp">$ </span><span class="nb">cd</span><span class="w"> </span>nuttxspace
 <span class="gp">$ </span>curl<span class="w"> </span>-L<span class="w"> </span>https://github.com/apache/nuttx/tarball/master<span class="w"> </span>-o<span class="w"> </span>nuttx.tar.gz
 <span class="gp">$ </span>curl<span class="w"> </span>-L<span class="w"> </span>https://github.com/apache/nuttx-apps/tarball/master<span class="w"> </span>-o<span class="w"> </span>apps.tar.gz
 <span class="gp">$ </span>tar<span class="w"> </span>zxf<span class="w"> </span>nuttx.tar.gz<span class="w"> </span>--one-top-level<span class="o">=</span>nuttx<span class="w"> </span>--strip-components<span class="w"> </span><span class="m">1</span>
 <span class="gp">$ </span>tar<span class="w"> </span>zxf<span class="w"> </span>apps.tar.gz<span class="w"> </span>--one-top-level<span class="o">=</span>apps<span class="w"> </span>--strip-components<span class="w"> </span><span class="m">1</span>
 </pre></div>
 </div>
 <p>There are also <code class="docutils literal notranslate"><span class="pre">.zip</span></code> archives available (useful for Windows users): just replace <code class="docutils literal notranslate"><span class="pre">tarball</span></code> with
 <code class="docutils literal notranslate"><span class="pre">zipball</span></code>.</p>
 </div><div aria-labelledby="tab-3-3-1" class="sphinx-tabs-panel" hidden="true" id="panel-3-3-1" name="3-1" role="tabpanel" tabindex="0"><p>Go to <a class="reference external" href="https://nuttx.apache.org/download/">releases</a> and choose a version to download. The following
 example uses version 12.2.1:</p>
 <div class="highlight-console notranslate"><div class="highlight"><pre><span></span><span class="gp">$ </span>mkdir<span class="w"> </span>nuttxspace
 <span class="gp">$ </span><span class="nb">cd</span><span class="w"> </span>nuttxspace
 <span class="gp">$ </span>curl<span class="w"> </span>-L<span class="w"> </span>https://www.apache.org/dyn/closer.lua/nuttx/12.2.1/apache-nuttx-12.2.1.tar.gz?action<span class="o">=</span>download<span class="w"> </span>-o<span class="w"> </span>nuttx.tar.gz
 <span class="gp">$ </span>curl<span class="w"> </span>-L<span class="w"> </span>https://www.apache.org/dyn/closer.lua/nuttx/12.2.1/apache-nuttx-apps-12.2.1.tar.gz?action<span class="o">=</span>download<span class="w"> </span>-o<span class="w"> </span>apps.tar.gz
 <span class="gp">$ </span>tar<span class="w"> </span>zxf<span class="w"> </span>nuttx.tar.gz
 <span class="gp">$ </span>tar<span class="w"> </span>zxf<span class="w"> </span>apps.tar.gz
 </pre></div>
 </div>
 </div></div>
 </section>
 </section>


            </div>
           </div>
           <footer><div class="rst-footer-buttons" role="navigation" aria-label="Footer">
         <a href="index.html" class="btn btn-neutral float-left" title="Getting Started" accesskey="p" rel="prev"><span class="fa fa-arrow-circle-left" aria-hidden="true"></span> Previous</a>
         <a href="compiling_make.html" class="btn btn-neutral float-right" title="Compiling with Make" accesskey="n" rel="next">Next <span class="fa fa-arrow-circle-right" aria-hidden="true"></span></a>
     </div>

   <hr/>

   <div role="contentinfo">
     <p>&#169; Copyright 2023, The Apache Software Foundation.</p>
   </div>


 </footer>
         </div>
       </div>
     </section>
   </div>
   <script>
       jQuery(function () {
           SphinxRtdTheme.Navigation.enable(true);
       });
   </script>

 </body>
 </html>