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<ol class="chapter"><li class="chapter-item expanded affix "><a href="preface.html">Preface</a></li><li class="chapter-item expanded affix "><li class="spacer"></li><li class="chapter-item expanded "><a href="starting_a_project.html"><strong aria-hidden="true">1.</strong> Starting a new project</a></li><li class="chapter-item expanded "><a href="by-example.html"><strong aria-hidden="true">2.</strong> RTIC by example</a></li><li><ol class="section"><li class="chapter-item expanded "><a href="by-example/app.html"><strong aria-hidden="true">2.1.</strong> The app</a></li><li class="chapter-item expanded "><a href="by-example/hardware_tasks.html"><strong aria-hidden="true">2.2.</strong> Hardware tasks</a></li><li class="chapter-item expanded "><a href="by-example/software_tasks.html"><strong aria-hidden="true">2.3.</strong> Software tasks & spawn</a></li><li class="chapter-item expanded "><a href="by-example/resources.html"><strong aria-hidden="true">2.4.</strong> Resources</a></li><li class="chapter-item expanded "><a href="by-example/app_init.html"><strong aria-hidden="true">2.5.</strong> The init task</a></li><li class="chapter-item expanded "><a href="by-example/app_idle.html"><strong aria-hidden="true">2.6.</strong> The idle task</a></li><li class="chapter-item expanded "><a href="by-example/channel.html"><strong aria-hidden="true">2.7.</strong> Channel based communication</a></li><li class="chapter-item expanded "><a href="by-example/delay.html"><strong aria-hidden="true">2.8.</strong> Delay and Timeout using Monotonics</a></li><li class="chapter-item expanded "><a href="by-example/app_minimal.html"><strong aria-hidden="true">2.9.</strong> The minimal app</a></li><li class="chapter-item expanded "><a href="by-example/tips/index.html"><strong aria-hidden="true">2.10.</strong> Tips & Tricks</a></li><li><ol class="section"><li class="chapter-item expanded "><a href="by-example/tips/destructureing.html"><strong aria-hidden="true">2.10.1.</strong> Resource de-structure-ing</a></li><li class="chapter-item expanded "><a href="by-example/tips/indirection.html"><strong aria-hidden="true">2.10.2.</strong> Avoid copies when message passing</a></li><li class="chapter-item expanded "><a href="by-example/tips/static_lifetimes.html"><strong aria-hidden="true">2.10.3.</strong> 'static super-powers</a></li><li class="chapter-item expanded "><a href="by-example/tips/view_code.html"><strong aria-hidden="true">2.10.4.</strong> Inspecting generated code</a></li></ol></li></ol></li><li class="chapter-item expanded "><a href="monotonic_impl.html"><strong aria-hidden="true">3.</strong> Monotonics & the Timer Queue</a></li><li class="chapter-item expanded "><a href="rtic_vs.html"><strong aria-hidden="true">4.</strong> RTIC vs. the world</a></li><li class="chapter-item expanded "><a href="rtic_and_embassy.html"><strong aria-hidden="true">5.</strong> RTIC and Embassy</a></li><li class="chapter-item expanded "><a href="awesome_rtic.html"><strong aria-hidden="true">6.</strong> Awesome RTIC examples</a></li><li class="chapter-item expanded affix "><li class="spacer"></li><li class="chapter-item expanded "><a href="migration_v1_v2.html" class="active"><strong aria-hidden="true">7.</strong> Migrating from v1.0.x to v2.0.0</a></li><li><ol class="section"><li class="chapter-item expanded "><a href="migration_v1_v2/monotonics.html"><strong aria-hidden="true">7.1.</strong> Migrating to rtic-monotonics</a></li><li class="chapter-item expanded "><a href="migration_v1_v2/async_tasks.html"><strong aria-hidden="true">7.2.</strong> Software tasks must now be async</a></li><li class="chapter-item expanded "><a href="migration_v1_v2/rtic-sync.html"><strong aria-hidden="true">7.3.</strong> Using and understanding rtic-sync</a></li><li class="chapter-item expanded "><a href="migration_v1_v2/complete_example.html"><strong aria-hidden="true">7.4.</strong> A code example on migration</a></li></ol></li><li class="chapter-item expanded "><li class="spacer"></li><li class="chapter-item expanded "><a href="internals.html"><strong aria-hidden="true">8.</st
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<h1 class="menu-title">Real-Time Interrupt-driven Concurrency</h1>
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<main>
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<h1 id="migrating-from-v10x-to-v200"><a class="header" href="#migrating-from-v10x-to-v200">Migrating from v1.0.x to v2.0.0</a></h1>
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<p>Migrating a project from RTIC <code>v1.0.x</code> to <code>v2.0.0</code> involves the following steps:</p>
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<ol>
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<li><code>v2.1.0</code> works on Rust Stable from 1.75 (<strong>recommended</strong>), while older versions require a <code>nightly</code> compiler via the use of <a href="https://github.com/rust-lang/rust/issues/63063"><code>#![type_alias_impl_trait]</code></a>.</li>
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<li>Migrating from the monotonics included in <code>v1.0.x</code> to <code>rtic-time</code> and <code>rtic-monotonics</code>, replacing <code>spawn_after</code>, <code>spawn_at</code>.</li>
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<li>Software tasks are now required to be <code>async</code>, and using them correctly.</li>
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<li>Understanding and using data types provided by <code>rtic-sync</code>.</li>
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</ol>
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<p>For a detailed description of the changes, refer to the subchapters.</p>
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<p>If you wish to see a code example of changes required, you can check out <a href="./migration_v1_v2/complete_example.html">the full example migration page</a>.</p>
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<h4 id="tldr-too-long-didnt-read"><a class="header" href="#tldr-too-long-didnt-read">TL;DR (Too Long; Didn't Read)</a></h4>
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<ol>
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<li>Instead of <code>spawn_after</code> and <code>spawn_at</code>, you now use the <code>async</code> functions <code>delay</code>, <code>delay_until</code> (and related) with impls provided by <code>rtic-monotonics</code>.</li>
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<li>Software tasks <em>must</em> be <code>async fn</code>s now. Not returning from a task is allowed so long as there is an <code>await</code> in the task. You can still <code>lock</code> shared resources.</li>
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<li>Use <code>rtic_sync::arbiter::Arbiter</code> to <code>await</code> access to a shared resource, and <code>rtic_sync::channel::Channel</code> to communicate between tasks instead of <code>spawn</code>-ing new ones.</li>
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