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| <div class="section" id="blinky-your-hello-world-on-a-nrf52-development-kit"> |
| <h1>Blinky, your “Hello World!”, on a nRF52 Development Kit<a class="headerlink" href="#blinky-your-hello-world-on-a-nrf52-development-kit" title="Permalink to this headline">¶</a></h1> |
| <p>This tutorial shows you how to create, build, and run the Blinky |
| application on a nRF52 Development Kit.</p> |
| <div class="contents local topic" id="contents"> |
| <ul class="simple"> |
| <li><p><a class="reference internal" href="#prerequisites" id="id1">Prerequisites</a></p></li> |
| <li><p><a class="reference internal" href="#create-a-project" id="id2">Create a Project</a></p></li> |
| <li><p><a class="reference internal" href="#create-the-targets" id="id3">Create the Targets</a></p></li> |
| <li><p><a class="reference internal" href="#build-the-target-executables" id="id4">Build the Target Executables</a></p></li> |
| <li><p><a class="reference internal" href="#sign-and-create-the-blinky-application-image" id="id5">Sign and Create the Blinky Application Image</a></p></li> |
| <li><p><a class="reference internal" href="#connect-to-the-board" id="id6">Connect to the Board</a></p></li> |
| <li><p><a class="reference internal" href="#load-the-bootloader-and-the-blinky-application-image" id="id7">Load the Bootloader and the Blinky Application Image</a></p></li> |
| </ul> |
| </div> |
| <p>Note that there are several versions of the nRF52 Development Kit in the |
| market. The boards tested with this tutorial are listed under |
| “Prerequisites”.</p> |
| <div class="section" id="prerequisites"> |
| <h2><a class="toc-backref" href="#id1">Prerequisites</a><a class="headerlink" href="#prerequisites" title="Permalink to this headline">¶</a></h2> |
| <ul class="simple"> |
| <li><p>Meet the prerequisites listed in <a class="reference internal" href="blinky.html"><span class="doc">Project Blinky</span></a>.</p></li> |
| <li><p>Have a nRF52 Development Kit (one of the following)</p> |
| <ul> |
| <li><p>Nordic nRF52-DK Development Kit - PCA 10040</p></li> |
| <li><p>Rigado BMD-300 Evaluation Kit - BMD-300-EVAL-ES</p></li> |
| </ul> |
| </li> |
| <li><p>Install the <a class="reference external" href="https://www.segger.com/jlink-software.html">Segger JLINK Software and documentation |
| pack</a>.</p></li> |
| </ul> |
| <p>This tutorial uses the Nordic nRF52-DK board.</p> |
| </div> |
| <div class="section" id="create-a-project"> |
| <h2><a class="toc-backref" href="#id2">Create a Project</a><a class="headerlink" href="#create-a-project" title="Permalink to this headline">¶</a></h2> |
| <p>Create a new project if you do not have an existing one. You can skip |
| this step and proceed to <a class="reference internal" href="#create-the-targets">Create the Targets</a> if you |
| already have a project created.</p> |
| <p>Run the following commands to create a new project:</p> |
| <div class="highlight-console notranslate"><div class="highlight"><pre><span></span><span class="gp">$ </span>mkdir<span class="w"> </span>~/dev |
| <span class="gp">$ </span><span class="nb">cd</span><span class="w"> </span>~/dev |
| <span class="gp">$ </span>newt<span class="w"> </span>new<span class="w"> </span>myproj |
| <span class="go">Downloading project skeleton from apache/mynewt-blinky...</span> |
| <span class="go">Installing skeleton in myproj...</span> |
| <span class="go">Project myproj successfully created.</span> |
| <span class="gp">$ </span><span class="nb">cd</span><span class="w"> </span>myproj |
| <span class="gp">$ </span>newt<span class="w"> </span>upgrade |
| <span class="go">Downloading repository mynewt-core (commit: master) ...</span> |
| <span class="go">Downloading repository mynewt-nimble (commit: master) ...</span> |
| <span class="go">Downloading repository mcuboot (commit: master) ...</span> |
| <span class="go">Downloading repository mynewt-mcumgr (commit: master) ...</span> |
| <span class="go">Making the following changes to the project:</span> |
| <span class="go">apache-mynewt-core successfully upgraded to version 1.7.0</span> |
| <span class="go">apache-mynewt-nimble successfully upgraded to version 1.2.0</span> |
| <span class="go">mcuboot successfully upgraded to version 1.3.1</span> |
| <span class="gp">$</span> |
| </pre></div> |
| </div> |
| </div> |
| <div class="section" id="create-the-targets"> |
| <h2><a class="toc-backref" href="#id3">Create the Targets</a><a class="headerlink" href="#create-the-targets" title="Permalink to this headline">¶</a></h2> |
| <p>Create two targets for the nRF52-DK board - one for the bootloader and |
| one for the Blinky application.</p> |
| <p>Run the following <code class="docutils literal notranslate"><span class="pre">newt</span> <span class="pre">target</span></code> commands, from your project directory, |
| to create a bootloader target. We name the target <code class="docutils literal notranslate"><span class="pre">nrf52_boot</span></code>:</p> |
| <p>Note: This tutorial uses the Nordic nRF52-DK board. You must specify |
| the correct bsp for the board you are using.</p> |
| <ul class="simple"> |
| <li><p>For the Rigado Eval Kit choose @apache-mynewt-core/hw/bsp/bmd300eval |
| instead (in the highlighted lines)</p></li> |
| </ul> |
| <div class="highlight-console notranslate"><div class="highlight"><pre><span></span><span class="gp">$ </span>newt<span class="w"> </span>target<span class="w"> </span>create<span class="w"> </span>nrf52_boot |
| <span class="gp">$ </span>newt<span class="w"> </span>target<span class="w"> </span><span class="nb">set</span><span class="w"> </span>nrf52_boot<span class="w"> </span><span class="nv">app</span><span class="o">=</span>@mcuboot/boot/mynewt |
| <span class="hll"><span class="gp">$ </span>newt<span class="w"> </span>target<span class="w"> </span><span class="nb">set</span><span class="w"> </span>nrf52_boot<span class="w"> </span><span class="nv">bsp</span><span class="o">=</span>@apache-mynewt-core/hw/bsp/nordic_pca10040 |
| </span><span class="gp">$ </span>newt<span class="w"> </span>target<span class="w"> </span><span class="nb">set</span><span class="w"> </span>nrf52_boot<span class="w"> </span><span class="nv">build_profile</span><span class="o">=</span>optimized |
| </pre></div> |
| </div> |
| <p>Run the following <code class="docutils literal notranslate"><span class="pre">newt</span> <span class="pre">target</span></code> commands to create a target for the |
| Blinky application. We name the target <code class="docutils literal notranslate"><span class="pre">nrf52_blinky</span></code>.</p> |
| <div class="highlight-console notranslate"><div class="highlight"><pre><span></span><span class="gp">$ </span>newt<span class="w"> </span>target<span class="w"> </span>create<span class="w"> </span>nrf52_blinky |
| <span class="gp">$ </span>newt<span class="w"> </span>target<span class="w"> </span><span class="nb">set</span><span class="w"> </span>nrf52_blinky<span class="w"> </span><span class="nv">app</span><span class="o">=</span>apps/blinky |
| <span class="hll"><span class="gp">$ </span>newt<span class="w"> </span>target<span class="w"> </span><span class="nb">set</span><span class="w"> </span>nrf52_blinky<span class="w"> </span><span class="nv">bsp</span><span class="o">=</span>@apache-mynewt-core/hw/bsp/nordic_pca10040 |
| </span><span class="gp">$ </span>newt<span class="w"> </span>target<span class="w"> </span><span class="nb">set</span><span class="w"> </span>nrf52_blinky<span class="w"> </span><span class="nv">build_profile</span><span class="o">=</span>debug |
| </pre></div> |
| </div> |
| <p>You can run the <code class="docutils literal notranslate"><span class="pre">newt</span> <span class="pre">target</span> <span class="pre">show</span></code> command to verify the target |
| settings:</p> |
| <div class="highlight-console notranslate"><div class="highlight"><pre><span></span><span class="gp">$ </span>newt<span class="w"> </span>target<span class="w"> </span>show |
| <span class="go">targets/nrf52_blinky</span> |
| <span class="go"> app=apps/blinky</span> |
| <span class="go"> bsp=@apache-mynewt-core/hw/bsp/nordic_pca10040</span> |
| <span class="go"> build_profile=debug</span> |
| <span class="go">targets/nrf52_boot</span> |
| <span class="go"> app=@mcuboot/boot/mynewt</span> |
| <span class="go"> bsp=@apache-mynewt-core/hw/bsp/nordic_pca10040</span> |
| <span class="go"> build_profile=optimized</span> |
| </pre></div> |
| </div> |
| </div> |
| <div class="section" id="build-the-target-executables"> |
| <h2><a class="toc-backref" href="#id4">Build the Target Executables</a><a class="headerlink" href="#build-the-target-executables" title="Permalink to this headline">¶</a></h2> |
| <p>Run the <code class="docutils literal notranslate"><span class="pre">newt</span> <span class="pre">build</span> <span class="pre">nrf52_boot</span></code> command to build the bootloader:</p> |
| <div class="highlight-console notranslate"><div class="highlight"><pre><span></span><span class="gp">$ </span>newt<span class="w"> </span>build<span class="w"> </span>nrf52_boot |
| <span class="go">Building target targets/nrf52_boot</span> |
| <span class="go">Compiling repos/mcuboot/boot/bootutil/src/image_ec256.c</span> |
| <span class="go">Compiling repos/mcuboot/boot/bootutil/src/image_ec.c</span> |
| <span class="go">Compiling repos/mcuboot/boot/bootutil/src/image_rsa.c</span> |
| <span class="go">Compiling repos/apache-mynewt-core/crypto/mbedtls/src/aes.c</span> |
| <span class="go">Compiling repos/mcuboot/boot/bootutil/src/loader.c</span> |
| <span class="go">Compiling repos/mcuboot/boot/bootutil/src/image_validate.c</span> |
| <span class="go">Compiling repos/mcuboot/boot/bootutil/src/bootutil_misc.c</span> |
| <span class="go">Compiling repos/mcuboot/boot/mynewt/src/main.c</span> |
| |
| <span class="go"> ...</span> |
| |
| <span class="go">Archiving sys_mfg.a</span> |
| <span class="go">Archiving sys_sysinit.a</span> |
| <span class="go">Archiving util_mem.a</span> |
| <span class="go">Linking ~/dev/myproj/bin/targets/nrf52_boot/app/boot/mynewt/mynewt.elf</span> |
| <span class="go">Target successfully built: targets/nrf52_boot</span> |
| </pre></div> |
| </div> |
| <p>Run the <code class="docutils literal notranslate"><span class="pre">newt</span> <span class="pre">build</span> <span class="pre">nrf52_blinky</span></code> command to build the Blinky |
| application:</p> |
| <div class="highlight-console notranslate"><div class="highlight"><pre><span></span><span class="gp">$ </span>newt<span class="w"> </span>build<span class="w"> </span>nrf52_blinky |
| <span class="go">Building target targets/nrf52_blinky</span> |
| <span class="go">Assembling repos/apache-mynewt-core/hw/bsp/nrf52dk/src/arch/cortex_m4/gcc_startup_nrf52_split.s</span> |
| <span class="go">Compiling repos/apache-mynewt-core/hw/bsp/nrf52dk/src/sbrk.c</span> |
| <span class="go">Compiling repos/apache-mynewt-core/hw/cmsis-core/src/cmsis_nvic.c</span> |
| <span class="go">Compiling repos/apache-mynewt-core/hw/drivers/uart/uart_hal/src/uart_hal.c</span> |
| <span class="go">Assembling repos/apache-mynewt-core/hw/bsp/nrf52dk/src/arch/cortex_m4/gcc_startup_nrf52.s</span> |
| <span class="go">Compiling apps/blinky/src/main.c</span> |
| |
| <span class="go"> ...</span> |
| |
| <span class="go">Archiving sys_mfg.a</span> |
| <span class="go">Archiving sys_sysinit.a</span> |
| <span class="go">Archiving util_mem.a</span> |
| <span class="go">Linking ~/dev/myproj/bin/targets/nrf52_blinky/app/apps/blinky/blinky.elf</span> |
| <span class="go">Target successfully built: targets/nrf52_blinky</span> |
| </pre></div> |
| </div> |
| </div> |
| <div class="section" id="sign-and-create-the-blinky-application-image"> |
| <h2><a class="toc-backref" href="#id5">Sign and Create the Blinky Application Image</a><a class="headerlink" href="#sign-and-create-the-blinky-application-image" title="Permalink to this headline">¶</a></h2> |
| <p>Run the <code class="docutils literal notranslate"><span class="pre">newt</span> <span class="pre">create-image</span> <span class="pre">nrf52_blinky</span> <span class="pre">1.0.0</span></code> command to create and |
| sign the application image. You may assign an arbitrary version (e.g. |
| 1.0.0) to the image.</p> |
| <div class="highlight-console notranslate"><div class="highlight"><pre><span></span><span class="gp">$ </span>newt<span class="w"> </span>create-image<span class="w"> </span>nrf52_blinky<span class="w"> </span><span class="m">1</span>.0.0 |
| <span class="go">App image succesfully generated: ~/dev/myproj/bin/targets/nrf52_blinky/app/apps/blinky/blinky.img</span> |
| </pre></div> |
| </div> |
| </div> |
| <div class="section" id="connect-to-the-board"> |
| <h2><a class="toc-backref" href="#id6">Connect to the Board</a><a class="headerlink" href="#connect-to-the-board" title="Permalink to this headline">¶</a></h2> |
| <ul class="simple"> |
| <li><p>Connect a micro-USB cable from your computer to the micro-USB port on |
| the nRF52-DK board.</p></li> |
| <li><p>Turn the power on the board to ON. You should see the green LED light |
| up on the board.</p></li> |
| </ul> |
| </div> |
| <div class="section" id="load-the-bootloader-and-the-blinky-application-image"> |
| <h2><a class="toc-backref" href="#id7">Load the Bootloader and the Blinky Application Image</a><a class="headerlink" href="#load-the-bootloader-and-the-blinky-application-image" title="Permalink to this headline">¶</a></h2> |
| <p>Run the <code class="docutils literal notranslate"><span class="pre">newt</span> <span class="pre">load</span> <span class="pre">nrf52_boot</span></code> command to load the bootloader onto the |
| board:</p> |
| <div class="highlight-console notranslate"><div class="highlight"><pre><span></span><span class="gp">$ </span>newt<span class="w"> </span>load<span class="w"> </span>nrf52_boot |
| <span class="go">Loading bootloader</span> |
| <span class="gp">$</span> |
| </pre></div> |
| </div> |
| <p>Run the <code class="docutils literal notranslate"><span class="pre">newt</span> <span class="pre">load</span> <span class="pre">nrf52_blinky</span></code> command to load the Blinky |
| application image onto the board.</p> |
| <div class="highlight-console notranslate"><div class="highlight"><pre><span></span><span class="gp">$ </span>newt<span class="w"> </span>load<span class="w"> </span>nrf52_blinky |
| <span class="go">Loading app image into slot 1</span> |
| </pre></div> |
| </div> |
| <p>You should see the LED1 on the board blink!</p> |
| <p>Note: If the LED does not blink, try resetting your board.</p> |
| <p>If you want to erase the flash and load the image again, you can run |
| <code class="docutils literal notranslate"><span class="pre">JLinkExe</span></code> to issue an <code class="docutils literal notranslate"><span class="pre">erase</span></code> command.</p> |
| <p><strong>Note:</strong> On Windows: Run the <code class="docutils literal notranslate"><span class="pre">jlink</span></code> command with the same arguments |
| from a Windows Command Prompt terminal.</p> |
| <div class="highlight-console notranslate"><div class="highlight"><pre><span></span><span class="gp">$ </span>JLinkExe<span class="w"> </span>-device<span class="w"> </span>nRF52<span class="w"> </span>-speed<span class="w"> </span><span class="m">4000</span><span class="w"> </span>-if<span class="w"> </span>SWD |
| <span class="go">SEGGER J-Link Commander V5.12c (Compiled Apr 21 2016 16:05:51)</span> |
| <span class="go">DLL version V5.12c, compiled Apr 21 2016 16:05:45</span> |
| |
| <span class="go">Connecting to J-Link via USB...O.K.</span> |
| <span class="go">Firmware: J-Link OB-SAM3U128-V2-NordicSemi compiled Mar 15 2016 18:03:17</span> |
| <span class="go">Hardware version: V1.00</span> |
| <span class="go">S/N: 682863966</span> |
| <span class="go">VTref = 3.300V</span> |
| |
| |
| <span class="go">Type "connect" to establish a target connection, '?' for help</span> |
| <span class="go">J-Link>erase</span> |
| <span class="go">Cortex-M4 identified.</span> |
| <span class="go">Erasing device (0;?i?)...</span> |
| <span class="go">Comparing flash [100%] Done.</span> |
| <span class="go">Erasing flash [100%] Done.</span> |
| <span class="go">Verifying flash [100%] Done.</span> |
| <span class="go">J-Link: Flash download: Total time needed: 0.363s (Prepare: 0.093s, Compare: 0.000s, Erase: 0.262s, Program: 0.000s, Verify: 0.000s, Restore: 0.008s)</span> |
| <span class="go">Erasing done.</span> |
| <span class="go">J-Link>exit</span> |
| <span class="gp">$</span> |
| </pre></div> |
| </div> |
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