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| <div class="section" id="porting-mynewt-to-a-new-mcu"> |
| <h1>Porting Mynewt to a new MCU<a class="headerlink" href="#porting-mynewt-to-a-new-mcu" title="Permalink to this headline">ΒΆ</a></h1> |
| <p>Porting Mynewt to a new MCU is not a difficult task if the core CPU |
| architectures is already supported.</p> |
| <p>The depth of work depends on the amount of HAL (Hardware Abstraction |
| Layer) support you need and provide in your port.</p> |
| <p>To get started:</p> |
| <ul class="simple"> |
| <li><p>Create a <code class="docutils literal notranslate"><span class="pre">hw/mcu/mymcu</span></code> directory where <code class="docutils literal notranslate"><span class="pre">mymcu</span></code> is the MCU you |
| are porting to. Replace the name <code class="docutils literal notranslate"><span class="pre">mymcu</span></code> with a description of the |
| MCU you are using.</p></li> |
| <li><p>Create a <code class="docutils literal notranslate"><span class="pre">hw/mcu/mymcu/variant</span></code> directory where the variant is the |
| specific variant of the part you are usuing. Many MCU parts have |
| variants with different capabilities (RAM, FLASH etc) or different |
| pinouts. Replace <code class="docutils literal notranslate"><span class="pre">variant</span></code> with a description of the variant of the |
| part you are using.</p></li> |
| <li><p>Create a <code class="docutils literal notranslate"><span class="pre">hw/mcu/mymcu/variant/pkg.yml</span></code> file. Copy from another mcu |
| and fill out the relevant information</p></li> |
| <li><p>Create |
| <code class="docutils literal notranslate"><span class="pre">hw/mcu/mymcu/variant/include</span></code>, <code class="docutils literal notranslate"><span class="pre">hw/mcu/mymcu/variant/include/mcu</span></code>, |
| and <code class="docutils literal notranslate"><span class="pre">hw/mcu/mymcu/variant/src</span></code> directories to contain the code for |
| your mcu.</p></li> |
| </ul> |
| <p>At this point there are two main tasks to complete.</p> |
| <ul class="simple"> |
| <li><p>Implement any OS-specific code required by the OS</p></li> |
| <li><p>Implement the HAL functionality that you are looking for</p></li> |
| </ul> |
| <p>Please contact the Mynewt development list for help and advice porting |
| to new MCU.</p> |
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