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Alex B.
2025-07-05 17:24:00 -04:00
parent 22c3a57351
commit 871097fb21
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ESP-IDF_Robot/tutorial/docs/build/html/data.html vendored
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@@ -64,7 +64,8 @@ This enables fine-grained speed control, supports differential drive configurati
</section>
<section id="why-use-attribute-packed">
<h2>Why Use __attribute((packed))?<a class="headerlink" href="#why-use-attribute-packed" title="Link to this heading"></a></h2>
<p>The packed attribute tells the compiler not to add any padding between fields in memory. This makes the struct:</p>
<p>ESP-NOW uses fixed-size data packets (up to 250 bytes). The <em>__attribute__((packed))</em> removes compiler-added padding for precise byte alignment.</p>
<p>As <em>packed</em> attribute tells the compiler not to add any padding between fields in memory, this makes the struct:</p>
<blockquote>
<div><ul class="simple">
<li><p>Compact</p></li>