n and configuration stuff like &quot;ensure this serial interface and that SPI
interface are not using the same pins&quot;. The HAL will focus on <em>doing I/O</em>.</li>
</ul>
<h1 id="reference-implementation" class="section-header"><a href="#reference-implementation">Reference implementation</a></h1>
<p>The <a href="https://crates.io/crates/stm32f30x-hal/0.1.0"><code>stm32f30x-hal</code></a> crate contains a reference implementation of this HAL.</p>
<h1 id="platform-agnostic-drivers" class="section-header