mirror of
https://github.com/rtic-rs/rtic.git
synced 2024-12-01 16:04:33 +01:00
288 lines
15 KiB
HTML
288 lines
15 KiB
HTML
<!DOCTYPE HTML>
|
||
<html lang="en" class="light sidebar-visible" dir="ltr">
|
||
<head>
|
||
<!-- Book generated using mdBook -->
|
||
<meta charset="UTF-8">
|
||
<title>RTIC by example - Real-Time Interrupt-driven Concurrency</title>
|
||
|
||
|
||
<!-- Custom HTML head -->
|
||
|
||
<meta name="description" content="">
|
||
<meta name="viewport" content="width=device-width, initial-scale=1">
|
||
<meta name="theme-color" content="#ffffff">
|
||
|
||
<link rel="icon" href="favicon.svg">
|
||
<link rel="shortcut icon" href="favicon.png">
|
||
<link rel="stylesheet" href="css/variables.css">
|
||
<link rel="stylesheet" href="css/general.css">
|
||
<link rel="stylesheet" href="css/chrome.css">
|
||
<link rel="stylesheet" href="css/print.css" media="print">
|
||
|
||
<!-- Fonts -->
|
||
<link rel="stylesheet" href="FontAwesome/css/font-awesome.css">
|
||
<link rel="stylesheet" href="fonts/fonts.css">
|
||
|
||
<!-- Highlight.js Stylesheets -->
|
||
<link rel="stylesheet" href="highlight.css">
|
||
<link rel="stylesheet" href="tomorrow-night.css">
|
||
<link rel="stylesheet" href="ayu-highlight.css">
|
||
|
||
<!-- Custom theme stylesheets -->
|
||
|
||
|
||
<!-- Provide site root to javascript -->
|
||
<script>
|
||
var path_to_root = "";
|
||
var default_theme = window.matchMedia("(prefers-color-scheme: dark)").matches ? "navy" : "light";
|
||
</script>
|
||
<!-- Start loading toc.js asap -->
|
||
<script src="toc.js"></script>
|
||
</head>
|
||
<body>
|
||
<div id="body-container">
|
||
<!-- Work around some values being stored in localStorage wrapped in quotes -->
|
||
<script>
|
||
try {
|
||
var theme = localStorage.getItem('mdbook-theme');
|
||
var sidebar = localStorage.getItem('mdbook-sidebar');
|
||
|
||
if (theme.startsWith('"') && theme.endsWith('"')) {
|
||
localStorage.setItem('mdbook-theme', theme.slice(1, theme.length - 1));
|
||
}
|
||
|
||
if (sidebar.startsWith('"') && sidebar.endsWith('"')) {
|
||
localStorage.setItem('mdbook-sidebar', sidebar.slice(1, sidebar.length - 1));
|
||
}
|
||
} catch (e) { }
|
||
</script>
|
||
|
||
<!-- Set the theme before any content is loaded, prevents flash -->
|
||
<script>
|
||
var theme;
|
||
try { theme = localStorage.getItem('mdbook-theme'); } catch(e) { }
|
||
if (theme === null || theme === undefined) { theme = default_theme; }
|
||
const html = document.documentElement;
|
||
html.classList.remove('light')
|
||
html.classList.add(theme);
|
||
html.classList.add("js");
|
||
</script>
|
||
|
||
<input type="checkbox" id="sidebar-toggle-anchor" class="hidden">
|
||
|
||
<!-- Hide / unhide sidebar before it is displayed -->
|
||
<script>
|
||
var sidebar = null;
|
||
var sidebar_toggle = document.getElementById("sidebar-toggle-anchor");
|
||
if (document.body.clientWidth >= 1080) {
|
||
try { sidebar = localStorage.getItem('mdbook-sidebar'); } catch(e) { }
|
||
sidebar = sidebar || 'visible';
|
||
} else {
|
||
sidebar = 'hidden';
|
||
}
|
||
sidebar_toggle.checked = sidebar === 'visible';
|
||
html.classList.remove('sidebar-visible');
|
||
html.classList.add("sidebar-" + sidebar);
|
||
</script>
|
||
|
||
<nav id="sidebar" class="sidebar" aria-label="Table of contents">
|
||
<!-- populated by js -->
|
||
<mdbook-sidebar-scrollbox class="sidebar-scrollbox"></mdbook-sidebar-scrollbox>
|
||
<noscript>
|
||
<iframe class="sidebar-iframe-outer" src="toc.html"></iframe>
|
||
</noscript>
|
||
<div id="sidebar-resize-handle" class="sidebar-resize-handle">
|
||
<div class="sidebar-resize-indicator"></div>
|
||
</div>
|
||
</nav>
|
||
|
||
<div id="page-wrapper" class="page-wrapper">
|
||
|
||
<div class="page">
|
||
<div id="menu-bar-hover-placeholder"></div>
|
||
<div id="menu-bar" class="menu-bar sticky">
|
||
<div class="left-buttons">
|
||
<label id="sidebar-toggle" class="icon-button" for="sidebar-toggle-anchor" title="Toggle Table of Contents" aria-label="Toggle Table of Contents" aria-controls="sidebar">
|
||
<i class="fa fa-bars"></i>
|
||
</label>
|
||
<button id="theme-toggle" class="icon-button" type="button" title="Change theme" aria-label="Change theme" aria-haspopup="true" aria-expanded="false" aria-controls="theme-list">
|
||
<i class="fa fa-paint-brush"></i>
|
||
</button>
|
||
<ul id="theme-list" class="theme-popup" aria-label="Themes" role="menu">
|
||
<li role="none"><button role="menuitem" class="theme" id="light">Light</button></li>
|
||
<li role="none"><button role="menuitem" class="theme" id="rust">Rust</button></li>
|
||
<li role="none"><button role="menuitem" class="theme" id="coal">Coal</button></li>
|
||
<li role="none"><button role="menuitem" class="theme" id="navy">Navy</button></li>
|
||
<li role="none"><button role="menuitem" class="theme" id="ayu">Ayu</button></li>
|
||
</ul>
|
||
<button id="search-toggle" class="icon-button" type="button" title="Search. (Shortkey: s)" aria-label="Toggle Searchbar" aria-expanded="false" aria-keyshortcuts="S" aria-controls="searchbar">
|
||
<i class="fa fa-search"></i>
|
||
</button>
|
||
</div>
|
||
|
||
<h1 class="menu-title">Real-Time Interrupt-driven Concurrency</h1>
|
||
|
||
<div class="right-buttons">
|
||
<a href="print.html" title="Print this book" aria-label="Print this book">
|
||
<i id="print-button" class="fa fa-print"></i>
|
||
</a>
|
||
<a href="https://github.com/rtic-rs/rtic" title="Git repository" aria-label="Git repository">
|
||
<i id="git-repository-button" class="fa fa-github"></i>
|
||
</a>
|
||
|
||
</div>
|
||
</div>
|
||
|
||
<div id="search-wrapper" class="hidden">
|
||
<form id="searchbar-outer" class="searchbar-outer">
|
||
<input type="search" id="searchbar" name="searchbar" placeholder="Search this book ..." aria-controls="searchresults-outer" aria-describedby="searchresults-header">
|
||
</form>
|
||
<div id="searchresults-outer" class="searchresults-outer hidden">
|
||
<div id="searchresults-header" class="searchresults-header"></div>
|
||
<ul id="searchresults">
|
||
</ul>
|
||
</div>
|
||
</div>
|
||
|
||
<!-- Apply ARIA attributes after the sidebar and the sidebar toggle button are added to the DOM -->
|
||
<script>
|
||
document.getElementById('sidebar-toggle').setAttribute('aria-expanded', sidebar === 'visible');
|
||
document.getElementById('sidebar').setAttribute('aria-hidden', sidebar !== 'visible');
|
||
Array.from(document.querySelectorAll('#sidebar a')).forEach(function(link) {
|
||
link.setAttribute('tabIndex', sidebar === 'visible' ? 0 : -1);
|
||
});
|
||
</script>
|
||
|
||
<div id="content" class="content">
|
||
<main>
|
||
<h1 id="rtic-by-example"><a class="header" href="#rtic-by-example">RTIC by example</a></h1>
|
||
<p>This part of the book introduces the RTIC framework to new users by walking them through examples of increasing complexity.</p>
|
||
<p>All examples in this part of the book are part of the
|
||
<a href="https://github.com/rtic-rs/rtic/tree/master/rtic/examples">RTIC repository</a>, found in the <code>examples</code> directory.
|
||
The examples are runnable on QEMU (emulating a Cortex M3 target),
|
||
thus no special hardware required to follow along.</p>
|
||
<h2 id="running-an-example"><a class="header" href="#running-an-example">Running an example</a></h2>
|
||
<p>To run the examples with QEMU you will need the <code>qemu-system-arm</code> program.
|
||
Check <a href="https://rust-embedded.github.io/book/intro/install.html">the embedded Rust book</a> for instructions on how to set up an
|
||
embedded development environment that includes QEMU.</p>
|
||
<p>To run the examples found in <code>examples/</code> locally using QEMU:</p>
|
||
<pre><code>cargo xtask qemu
|
||
</code></pre>
|
||
<p>This runs all of the examples against the default <code>thumbv7m-none-eabi</code> device <code>lm3s6965</code>.</p>
|
||
<p>To limit which examples are being run, use the flag <code>--example <example name></code>, the name being the filename of the example.</p>
|
||
<p>Assuming dependencies in place, running:</p>
|
||
<pre><code class="language-console">$ cargo xtask qemu --example locals
|
||
</code></pre>
|
||
<p>Yields this output:</p>
|
||
<pre><code class="language-console"> Finished dev [unoptimized + debuginfo] target(s) in 0.07s
|
||
Running `target/debug/xtask qemu --example locals`
|
||
INFO xtask > Testing for platform: Lm3s6965, backend: Thumbv7
|
||
INFO xtask::run > 👟 Build example locals (thumbv7m-none-eabi, release, "test-critical-section,thumbv7-backend", in examples/lm3s6965)
|
||
INFO xtask::run > ✅ Success.
|
||
INFO xtask::run > 👟 Run example locals in QEMU (thumbv7m-none-eabi, release, "test-critical-section,thumbv7-backend", in examples/lm3s6965)
|
||
INFO xtask::run > ✅ Success.
|
||
INFO xtask::results > ✅ Success: Build example locals (thumbv7m-none-eabi, release, "test-critical-section,thumbv7-backend", in examples/lm3s6965)
|
||
INFO xtask::results > ✅ Success: Run example locals in QEMU (thumbv7m-none-eabi, release, "test-critical-section,thumbv7-backend", in examples/lm3s6965)
|
||
INFO xtask::results > 🚀🚀🚀 All tasks succeeded 🚀🚀🚀
|
||
</code></pre>
|
||
<p>It is great that examples are passing and this is part of the RTIC CI setup too, but for the purposes of this book we must add the <code>--verbose</code> flag, or <code>-v</code> for short to see the actual program output:</p>
|
||
<pre><code class="language-console">❯ cargo xtask qemu --verbose --example locals
|
||
Finished dev [unoptimized + debuginfo] target(s) in 0.03s
|
||
Running `target/debug/xtask qemu --example locals --verbose`
|
||
DEBUG xtask > Stderr of child processes is inherited: false
|
||
DEBUG xtask > Partial features: false
|
||
INFO xtask > Testing for platform: Lm3s6965, backend: Thumbv7
|
||
INFO xtask::run > 👟 Build example locals (thumbv7m-none-eabi, release, "test-critical-section,thumbv7-backend", in examples/lm3s6965)
|
||
INFO xtask::run > ✅ Success.
|
||
INFO xtask::run > 👟 Run example locals in QEMU (thumbv7m-none-eabi, release, "test-critical-section,thumbv7-backend", in examples/lm3s6965)
|
||
INFO xtask::run > ✅ Success.
|
||
INFO xtask::results > ✅ Success: Build example locals (thumbv7m-none-eabi, release, "test-critical-section,thumbv7-backend", in examples/lm3s6965)
|
||
cd examples/lm3s6965 && cargo build --target thumbv7m-none-eabi --features test-critical-section,thumbv7-backend --release --example locals
|
||
DEBUG xtask::results >
|
||
cd examples/lm3s6965 && cargo build --target thumbv7m-none-eabi --features test-critical-section,thumbv7-backend --release --example locals
|
||
Stderr:
|
||
Finished release [optimized] target(s) in 0.02s
|
||
INFO xtask::results > ✅ Success: Run example locals in QEMU (thumbv7m-none-eabi, release, "test-critical-section,thumbv7-backend", in examples/lm3s6965)
|
||
cd examples/lm3s6965 && cargo run --target thumbv7m-none-eabi --features test-critical-section,thumbv7-backend --release --example locals
|
||
DEBUG xtask::results >
|
||
cd examples/lm3s6965 && cargo run --target thumbv7m-none-eabi --features test-critical-section,thumbv7-backend --release --example locals
|
||
Stdout:
|
||
bar: local_to_bar = 1
|
||
foo: local_to_foo = 1
|
||
idle: local_to_idle = 1
|
||
|
||
Stderr:
|
||
Finished release [optimized] target(s) in 0.02s
|
||
Running `qemu-system-arm -cpu cortex-m3 -machine lm3s6965evb -nographic -semihosting-config enable=on,target=native -kernel target/thumbv7m-none-eabi/release/examples/locals`
|
||
Timer with period zero, disabling
|
||
|
||
INFO xtask::results > 🚀🚀🚀 All tasks succeeded 🚀🚀🚀
|
||
</code></pre>
|
||
<p>Look for the content following <code>Stdout:</code> towards the end ouf the output, the program output should have these lines:</p>
|
||
<pre><code class="language-console">bar: local_to_bar = 1
|
||
foo: local_to_foo = 1
|
||
idle: local_to_idle = 1
|
||
</code></pre>
|
||
<blockquote>
|
||
<p><strong>NOTE</strong>:
|
||
For other useful options to <code>cargo xtask</code>, see:</p>
|
||
<pre><code>cargo xtask qemu --help
|
||
</code></pre>
|
||
<p>The <code>--platform</code> flag allows changing which device examples are run on,
|
||
currently <code>lm3s6965</code> is the best supported, work is ongoing to
|
||
increase support for other devices, including both ARM and RISC-V</p>
|
||
</blockquote>
|
||
|
||
</main>
|
||
|
||
<nav class="nav-wrapper" aria-label="Page navigation">
|
||
<!-- Mobile navigation buttons -->
|
||
<a rel="prev" href="starting_a_project.html" class="mobile-nav-chapters previous" title="Previous chapter" aria-label="Previous chapter" aria-keyshortcuts="Left">
|
||
<i class="fa fa-angle-left"></i>
|
||
</a>
|
||
|
||
<a rel="next prefetch" href="by-example/app.html" class="mobile-nav-chapters next" title="Next chapter" aria-label="Next chapter" aria-keyshortcuts="Right">
|
||
<i class="fa fa-angle-right"></i>
|
||
</a>
|
||
|
||
<div style="clear: both"></div>
|
||
</nav>
|
||
</div>
|
||
</div>
|
||
|
||
<nav class="nav-wide-wrapper" aria-label="Page navigation">
|
||
<a rel="prev" href="starting_a_project.html" class="nav-chapters previous" title="Previous chapter" aria-label="Previous chapter" aria-keyshortcuts="Left">
|
||
<i class="fa fa-angle-left"></i>
|
||
</a>
|
||
|
||
<a rel="next prefetch" href="by-example/app.html" class="nav-chapters next" title="Next chapter" aria-label="Next chapter" aria-keyshortcuts="Right">
|
||
<i class="fa fa-angle-right"></i>
|
||
</a>
|
||
</nav>
|
||
|
||
</div>
|
||
|
||
|
||
|
||
|
||
<script>
|
||
window.playground_copyable = true;
|
||
</script>
|
||
|
||
|
||
<script src="elasticlunr.min.js"></script>
|
||
<script src="mark.min.js"></script>
|
||
<script src="searcher.js"></script>
|
||
|
||
<script src="clipboard.min.js"></script>
|
||
<script src="highlight.js"></script>
|
||
<script src="book.js"></script>
|
||
|
||
<!-- Custom JS scripts -->
|
||
<script src="mermaid.min.js"></script>
|
||
<script src="mermaid-init.js"></script>
|
||
|
||
|
||
</div>
|
||
</body>
|
||
</html>
|