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<!DOCTYPE html><html lang="en"><head><meta charset="utf-8"><meta name="viewport" content="width=device-width, initial-scale=1.0"><meta name="generator" content="rustdoc"><meta name="description" content="I2C bus sharing using `Arbiter`"><title>rtic_sync::arbiter::i2c - Rust</title><script>if(window.location.protocol!=="file:")document.head.insertAdjacentHTML("beforeend","SourceSerif4-Regular-46f98efaafac5295.ttf.woff2,FiraSans-Regular-018c141bf0843ffd.woff2,FiraSans-Medium-8f9a781e4970d388.woff2,SourceCodePro-Regular-562dcc5011b6de7d.ttf.woff2,SourceCodePro-Semibold-d899c5a5c4aeb14a.ttf.woff2".split(",").map(f=>`<link rel="preload" as="font" type="font/woff2" crossorigin href="../../../static.files/${f}">`).join(""))</script><link rel="stylesheet" href="../../../static.files/normalize-76eba96aa4d2e634.css"><link rel="stylesheet" href="../../../static.files/rustdoc-492a78a4a87dcc01.css"><meta name="rustdoc-vars" data-root-path="../../../" data-static-root-path="../../../static.files/" data-current-crate="rtic_sync" data-themes="" data-resource-suffix="" data-rustdoc-version="1.82.0 (f6e511eec 2024-10-15)" data-channel="1.82.0" data-search-js="search-a99f1315e7cc5121.js" data-settings-js="settings-4313503d2e1961c2.js" ><script src="../../../static.files/storage-118b08c4c78b968e.js"></script><script defer src="../sidebar-items.js"></script><script defer src="../../../static.files/main-921df33f47b8780c.js"></script><noscript><link rel="stylesheet" href="../../../static.files/noscript-3b12f09e550e0385.css"></noscript><link rel="alternate icon" type="image/png" href="../../../static.files/favicon-32x32-422f7d1d52889060.png"><link rel="icon" type="image/svg+xml" href="../../../static.files/favicon-2c020d218678b618.svg"></head><body class="rustdoc mod"><!--[if lte IE 11]><div class="warning">This old browser is unsupported and will most likely display funky things.</div><![endif]--><nav class="mobile-topbar"><button class="sidebar-menu-toggle" title="show sidebar"></button></nav><nav class="sidebar"><div class="sidebar-crate"><h2><a href="../../../rtic_sync/index.html">rtic_<wbr>sync</a><span class="version">1.3.1-alpha.1</span></h2></div><h2 class="location"><a href="#">Module i2c</a></h2><div class="sidebar-elems"><section><ul class="block"><li><a href="#structs">Structs</a></li></ul></section><h2><a href="../index.html">In rtic_<wbr>sync::<wbr>arbiter</a></h2></div></nav><div class="sidebar-resizer"></div><main><div class="width-limiter"><rustdoc-search></rustdoc-search><section id="main-content" class="content"><div class="main-heading"><h1>Module <a href="../../index.html">rtic_sync</a>::<wbr><a href="../index.html">arbiter</a>::<wbr><a class="mod" href="#">i2c</a><button id="copy-path" title="Copy item path to clipboard">Copy item path</button></h1><span class="out-of-band"><a class="src" href="../../../src/rtic_sync/arbiter.rs.html#324">source</a> · <button id="toggle-all-docs" title="collapse all docs">[<span>−</span>]</button></span></div><details class="toggle top-doc" open><summary class="hideme"><span>Expand description</span></summary><div class="docblock"><p>I2C bus sharing using <a href="../struct.Arbiter.html" title="struct rtic_sync::arbiter::Arbiter"><code>Arbiter</code></a></p>
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<p>An Example how to use it in RTIC application:</p>
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<div class="example-wrap"><pre class="language-text"><code>#[app(device = some_hal, peripherals = true, dispatchers = [TIM16])]
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mod app {
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use core::mem::MaybeUninit;
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use rtic_sync::{arbiter::{i2c::ArbiterDevice, Arbiter},
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#[shared]
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struct Shared {}
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#[local]
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struct Local {
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ens160: Ens160<ArbiterDevice<'static, I2c<'static, I2C1>>>,
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}
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#[init(local = [
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i2c_arbiter: MaybeUninit<Arbiter<I2c<'static, I2C1>>> = MaybeUninit::uninit(),
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])]
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fn init(cx: init::Context) -> (Shared, Local) {
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let i2c = I2c::new(cx.device.I2C1);
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let i2c_arbiter = cx.local.i2c_arbiter.write(Arbiter::new(i2c));
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let ens160 = Ens160::new(ArbiterDevice::new(i2c_arbiter), 0x52);
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i2c_sensors::spawn(i2c_arbiter).ok();
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(Shared {}, Local { ens160 })
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}
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#[task(local = [ens160])]
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async fn i2c_sensors(cx: i2c_sensors::Context, i2c: &'static Arbiter<I2c<'static, I2C1>>) {
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use sensor::Asensor;
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loop {
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// Use scope to make sure I2C access is dropped.
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{
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// Read from sensor driver that wants to use I2C directly.
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let mut i2c = i2c.access().await;
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let status = Asensor::status(&mut i2c).await;
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}
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// Read ENS160 sensor.
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let eco2 = cx.local.ens160.eco2().await;
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}
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}
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}
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</code></pre></div></div></details><h2 id="structs" class="section-header">Structs<a href="#structs" class="anchor">§</a></h2><ul class="item-table"><li><div class="item-name"><a class="struct" href="struct.ArbiterDevice.html" title="struct rtic_sync::arbiter::i2c::ArbiterDevice">Arbiter<wbr>Device</a></div><div class="desc docblock-short"><a href="../struct.Arbiter.html" title="struct rtic_sync::arbiter::Arbiter"><code>Arbiter</code></a>-based shared bus implementation for I2C.</div></li></ul></section></div></main></body></html>
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