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| <div class="section" id="mynewt-faq-troubleshooting-debugging"> |
| <h1>Mynewt FAQ - Troubleshooting/Debugging<a class="headerlink" href="#mynewt-faq-troubleshooting-debugging" title="Permalink to this headline">¶</a></h1> |
| <div class="contents local topic" id="contents"> |
| <ul class="simple"> |
| <li><p><a class="reference internal" href="#concurrent-debug-sessions-with-two-boards" id="id1">Concurrent debug sessions with two boards</a></p></li> |
| <li><p><a class="reference internal" href="#error-unsatisfied-apis-detected" id="id2">Error: Unsatisfied APIs detected</a></p></li> |
| <li><p><a class="reference internal" href="#greyed-out-files-on-ios-11" id="id3">Greyed out files on iOS 11</a></p></li> |
| <li><p><a class="reference internal" href="#arm-none-eabi-gcc-build-error-for-project" id="id4"><code class="docutils literal notranslate"><span class="pre">arm-none-eabi-gcc</span></code> Build Error for Project</a></p></li> |
| <li><p><a class="reference internal" href="#issues-running-image-on-boot" id="id5">Issues Running Image on Boot</a></p></li> |
| <li><p><a class="reference internal" href="#enable-trace-in-mynewt" id="id6">Enable Trace in Mynewt</a></p></li> |
| <li><p><a class="reference internal" href="#bug-with-older-versions-of-gcc" id="id7">Bug With Older Versions of <code class="docutils literal notranslate"><span class="pre">gcc</span></code></a></p></li> |
| </ul> |
| </div> |
| <div class="section" id="concurrent-debug-sessions-with-two-boards"> |
| <h2><a class="toc-backref" href="#id1">Concurrent debug sessions with two boards</a><a class="headerlink" href="#concurrent-debug-sessions-with-two-boards" title="Permalink to this headline">¶</a></h2> |
| <p><strong>Q</strong>: Can I run concurrent GDB connections to multiple devices? Is the GDB port hardcoded?</p> |
| <p>Yes, starting with release 1.5 Mynewt allows “newt debug” to have a session with JLink as well as openocd simultaneously open. And no, the GDB port is not hardcoded. You can specify it with the -port option. For example:</p> |
| <div class="highlight-console notranslate"><div class="highlight"><pre><span></span><span class="go">newt debug slinky_nrf52 --extrajtagcmd "-port 5431 -select usb=682148664"</span> |
| </pre></div> |
| </div> |
| </div> |
| <div class="section" id="error-unsatisfied-apis-detected"> |
| <h2><a class="toc-backref" href="#id2">Error: Unsatisfied APIs detected</a><a class="headerlink" href="#error-unsatisfied-apis-detected" title="Permalink to this headline">¶</a></h2> |
| <p><strong>Q</strong>: I ran into the following error message:</p> |
| <div class="highlight-console notranslate"><div class="highlight"><pre><span></span><span class="go">Error: Unsatisfied APIs detected:</span> |
| <span class="go">* stats, required by: hw/drivers/sensors/bmp280, hw/drivers/sensors/ms5837, net/oic</span> |
| </pre></div> |
| </div> |
| <p>How do I resolve this?</p> |
| <p><strong>A</strong>: You may be missing some package dependencies in your <code class="docutils literal notranslate"><span class="pre">pkg.yml</span></code> file. In this case, you need to include |
| <code class="docutils literal notranslate"><span class="pre">sys/stats</span></code> (either <code class="docutils literal notranslate"><span class="pre">sys/stats/full</span></code> or <code class="docutils literal notranslate"><span class="pre">sys/stats/stub</span></code>) to your <code class="docutils literal notranslate"><span class="pre">pkg.yml</span></code> file. You can add it to either |
| your app’s or target’s pkg.yml file, but if you have a custom app it is recommended that you add it to your app’s |
| <code class="docutils literal notranslate"><span class="pre">pkg.yml</span></code>. That way you can have multiple targets for the same app, without having to add it to every target. |
| Moreover, if you share your app package, others won’t run into the same error when building it.</p> |
| </div> |
| <div class="section" id="greyed-out-files-on-ios-11"> |
| <h2><a class="toc-backref" href="#id3">Greyed out files on iOS 11</a><a class="headerlink" href="#greyed-out-files-on-ios-11" title="Permalink to this headline">¶</a></h2> |
| <p><strong>Q</strong>: I’m trying to use the Adafruit Mynewt Manager to upload a custom image over BLE. Uploading one of the provided |
| <code class="docutils literal notranslate"><span class="pre">bleuartx000.img</span></code> works fine and I can boot into them, confirm etc. However, when I try to upload a custom image I |
| can’t even seem to add it to the app. Images stored in the iCloud drive just appear as disabled icons. Anyone with a |
| clue as to how to get that working?</p> |
| <p><strong>A</strong>: The new iOS version no longer allows files with unrecognized extensions to be selected. Try renaming the file to |
| something more compatible (e.g. <code class="docutils literal notranslate"><span class="pre">.txt</span></code>).</p> |
| </div> |
| <div class="section" id="arm-none-eabi-gcc-build-error-for-project"> |
| <h2><a class="toc-backref" href="#id4"><code class="docutils literal notranslate"><span class="pre">arm-none-eabi-gcc</span></code> Build Error for Project</a><a class="headerlink" href="#arm-none-eabi-gcc-build-error-for-project" title="Permalink to this headline">¶</a></h2> |
| <p><strong>Q</strong>: I am having this error when I try to build my project:</p> |
| <div class="highlight-console notranslate"><div class="highlight"><pre><span></span><span class="go">Building target targets/stm32l072czy6tr_boot</span> |
| <span class="go">Error: exec: "arm-none-eabi-gcc": executable file not found in $PATH</span> |
| </pre></div> |
| </div> |
| <p>How do I add it?</p> |
| <p><strong>A</strong>: First, install the GNU Arm Embedded Toolchain if you haven’t already. Then, depending on your OS, add the link to |
| your <code class="docutils literal notranslate"><span class="pre">arm-none-eabi-gcc</span></code> executable path to your PATH environment variable.</p> |
| </div> |
| <div class="section" id="issues-running-image-on-boot"> |
| <h2><a class="toc-backref" href="#id5">Issues Running Image on Boot</a><a class="headerlink" href="#issues-running-image-on-boot" title="Permalink to this headline">¶</a></h2> |
| <p><strong>Q</strong>: I was able to successfully create a BSP for my custom board (using nRF52 MCU), then build and run that image in the |
| debugger. However, it does not run on boot. Any ideas to fix the issue?</p> |
| <p><strong>A</strong>: A good process in general is to do a full flash erase, then flash the bootloader and the running image. Make sure to |
| dump the contents of flash and see that it actually gets written there as well. If you experience the issue again after a |
| reboot, you will also want to set <code class="docutils literal notranslate"><span class="pre">MCU_DCDC_ENABLED:0</span></code> then redo the process of erase, rebuild, and reload.</p> |
| </div> |
| <div class="section" id="enable-trace-in-mynewt"> |
| <h2><a class="toc-backref" href="#id6">Enable Trace in Mynewt</a><a class="headerlink" href="#enable-trace-in-mynewt" title="Permalink to this headline">¶</a></h2> |
| <p><strong>Q</strong>: I’m trying to use gdb with Trace, but do not know how to enable it. How do I do this in Mynewt?</p> |
| <p><strong>A</strong>: To enable Trace, you can add <code class="docutils literal notranslate"><span class="pre">cflags</span></code> to <code class="docutils literal notranslate"><span class="pre">pkg.yml</span></code> in your target directory:</p> |
| <div class="highlight-console notranslate"><div class="highlight"><pre><span></span><span class="go">~/dev/mynewt $ cat targets/mytarget/pkg.yml</span> |
| <span class="gp">#</span><span class="c1">## Package: targets/mytarget</span> |
| <span class="go">pkg.name: “targets/mytarget”</span> |
| <span class="go">pkg.type: "target"</span> |
| <span class="go">pkg.description:</span> |
| <span class="go">pkg.author:</span> |
| <span class="go">pkg.homepage:</span> |
| <span class="go"></span> |
| <span class="go">pkg.cflags:</span> |
| <span class="go"> - -DENABLE_TRACE</span> |
| </pre></div> |
| </div> |
| </div> |
| <div class="section" id="bug-with-older-versions-of-gcc"> |
| <h2><a class="toc-backref" href="#id7">Bug With Older Versions of <code class="docutils literal notranslate"><span class="pre">gcc</span></code></a><a class="headerlink" href="#bug-with-older-versions-of-gcc" title="Permalink to this headline">¶</a></h2> |
| <p><strong>Q</strong>: I got the following error using <code class="docutils literal notranslate"><span class="pre">newt</span> <span class="pre">build</span></code>. How do I fix it?</p> |
| <div class="highlight-console notranslate"><div class="highlight"><pre><span></span><span class="go">Error: repos/apache-mynewt-core/sys/log/modlog/src/modlog.c: In function 'modlog_alloc':</span> |
| <span class="go">repos/apache-mynewt-core/sys/log/modlog/src/modlog.c:61:23: error: missing braces around initializer [-Werror=missing-braces]</span> |
| <span class="go"> *mm = (struct modlog_mapping) { 0 };</span> |
| <span class="go"> ^</span> |
| <span class="go">repos/apache-mynewt-core/sys/log/modlog/src/modlog.c:61:23: error: (near initialization for '(anonymous).next') [-Werror=missing-braces]</span> |
| <span class="go">cc1: all warnings being treated as errors</span> |
| </pre></div> |
| </div> |
| <p><strong>A</strong>: That is a bug in older versions of <code class="docutils literal notranslate"><span class="pre">gcc</span></code> (<a class="reference external" href="https://gcc.gnu.org/bugzilla/show_bug.cgi?id=53119">https://gcc.gnu.org/bugzilla/show_bug.cgi?id=53119</a>). The recommended <code class="docutils literal notranslate"><span class="pre">gcc</span></code> version is 7.x.</p> |
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