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<h1 class="Header__Title">使用 Rust 开发 ESP32 应用</h1>
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<span class="DateTagBar__Item DateTagBar__Date">Posted on Mon, Sep 2, 2024</span>
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<article id="https://www.notion.so/401f14329d1348dcb1e8c54421cb8e18" class="PageRoot"><h2 id="https://www.notion.so/1ff2fdf2c1c34cbeab1fbb29cf40eb43" class="ColorfulBlock ColorfulBlock--ColorDefault Heading Heading--2"><a class="Anchor" href="#https://www.notion.so/1ff2fdf2c1c34cbeab1fbb29cf40eb43"><svg width="16" height="16" viewBox="0 0 16 16"><path fill-rule="evenodd" d="M4 9h1v1H4c-1.5 0-3-1.69-3-3.5S2.55 3 4 3h4c1.45 0 3 1.69 3 3.5 0 1.41-.91 2.72-2 3.25V8.59c.58-.45 1-1.27 1-2.09C10 5.22 8.98 4 8 4H4c-.98 0-2 1.22-2 2.5S3 9 4 9zm9-3h-1v1h1c1 0 2 1.22 2 2.5S13.98 12 13 12H9c-.98 0-2-1.22-2-2.5 0-.83.42-1.64 1-2.09V6.25c-1.09.53-2 1.84-2 3.25C6 11.31 7.55 13 9 13h4c1.45 0 3-1.69 3-3.5S14.5 6 13 6z"></path></svg></a><span class="SemanticStringArray"><span class="SemanticString"><mark class="SemanticString__Fragment SemanticString__Fragment--HighlightedColor SemanticString__Fragment--ColorDefault">ESP32 的 Rust 应用分为两种类型：</mark></span></span></h2><ol class="NumberedListWrapper"><li id="https://www.notion.so/0db485b427f04009bcd06fffa6f02845" class="NumberedList" value="1"><span class="SemanticStringArray"><span class="SemanticString"><mark class="SemanticString__Fragment SemanticString__Fragment--HighlightedColor SemanticString__Fragment--ColorDefault">使用 std 库：可以使用 Rust 标准库的各种类型和特性，如 Vec/HashMap/Box，heap、thread/Mutex 等；</mark></span></span></li><li id="https://www.notion.so/d6a443c00f874a98a6a73c620fa0eb86" class="NumberedList" value="2"><span class="SemanticStringArray"><span class="SemanticString"><mark class="SemanticString__Fragment SemanticString__Fragment--HighlightedColor SemanticString__Fragment--ColorDefault">使用 core 库（non_std ）: bare metal 开发；</mark></span></span><div id="https://www.notion.so/f72a5da25a8c42fab3e94c85e16e60ea" class="ColorfulBlock ColorfulBlock--ColorDefault Text"><p class="Text__Content"><span class="SemanticStringArray"><span class="SemanticString"><mark class="SemanticString__Fragment SemanticString__Fragment--HighlightedColor SemanticString__Fragment--ColorDefault">Github 的 esp-rs 组织中的各库命名管理：</mark></span></span></p></div></li><li id="https://www.notion.so/619457d7e301483eb1e89b2ce2ed5730" class="NumberedList" value="3"><span class="SemanticStringArray"><span class="SemanticString"><mark class="SemanticString__Fragment SemanticString__Fragment--HighlightedColor SemanticString__Fragment--ColorDefault">esp- 开头：是 non_std 类型，如 esp-hal;</mark></span></span></li><li id="https://www.notion.so/0d79536023e544688470e7b0e656f8f9" class="NumberedList" value="4"><span class="SemanticStringArray"><span class="SemanticString"><mark class="SemanticString__Fragment SemanticString__Fragment--HighlightedColor SemanticString__Fragment--ColorDefault">esp-idf- 开头：是 std 类型，如 esp-idf-hal;</mark></span></span></li></ol><div id="https://www.notion.so/7b623d14824243359debe3098411b532" class="ColorfulBlock ColorfulBlock--ColorDefault Text"><p class="Text__Content"><span class="SemanticStringArray"></span></p></div><div id="https://www.notion.so/7b6ed1a14b0e49b2a1b19b281794af32" class="ColorfulBlock ColorfulBlock--ColorDefault Text"><p class="Text__Content"><span class="SemanticStringArray"><span class="SemanticString"><mark class="SemanticString__Fragment SemanticString__Fragment--HighlightedColor SemanticString__Fragment--ColorDefault">对于 std 类型应用，</mark></span><span class="SemanticString"><mark class="SemanticString__Fragment SemanticString__Fragment--HighlightedColor SemanticString__Fragment--ColorDefault"><code class="SemanticString__Fragment SemanticString__Fragment--Code">cargo build </code></mark></span><span class="SemanticString"><mark class="SemanticString__Fragment SemanticString__Fragment--HighlightedColor SemanticString__Fragment--ColorDefault">时会下载和编译依赖的 esp-idf 库。</mark></span></span></p></div><div id="https://www.notion.so/00bb1d5b0f2b42f7a2f80673c0a374f0" class="ColorfulBlock ColorfulBlock--ColorDefault Text"><p class="Text__Content"><span class="SemanticStringArray"><span class="SemanticString"><mark class="SemanticString__Fragment SemanticString__Fragment--HighlightedColor SemanticString__Fragment--ColorDefault">推荐使用 cargo generate template 来创建 std/non_std 应用:</mark></span></span></p></div><ol class="NumberedListWrapper"><li id="https://www.notion.so/d805b07f37f2427c8606355881728d19" class="NumberedList" value="1"><span class="SemanticStringArray"><span class="SemanticString"><mark class="SemanticString__Fragment SemanticString__Fragment--HighlightedColor SemanticString__Fragment--ColorDefault">std 应用:</mark></span></span><ul class="BulletedListWrapper"><li id="https://www.notion.so/5f1cef70f3634863b802ec660dda9750" class="BulletedList"><span class="SemanticStringArray"><span class="SemanticString"><mark class="SemanticString__Fragment SemanticString__Fragment--HighlightedColor SemanticString__Fragment--ColorDefault"><strong class="SemanticString__Fragment SemanticString__Fragment--Bold">cargo generate esp-rs/esp-idf-template cargo:</strong></mark></span><span class="SemanticString"><mark class="SemanticString__Fragment SemanticString__Fragment--HighlightedColor SemanticString__Fragment--ColorDefault"> 纯 Rust 应用（cargo-frst）；</mark></span></span></li><li id="https://www.notion.so/254dbf4cd4e440849412c6d160f5e156" class="BulletedList"><span class="SemanticStringArray"><span class="SemanticString"><mark class="SemanticString__Fragment SemanticString__Fragment--HighlightedColor SemanticString__Fragment--ColorDefault"><strong class="SemanticString__Fragment SemanticString__Fragment--Bold">cargo generate esp-rs/esp-idf-template cmake:</strong></mark></span><span class="SemanticString"><mark class="SemanticString__Fragment SemanticString__Fragment--HighlightedColor SemanticString__Fragment--ColorDefault"> 混合 Rust and C/C++ in a traditional ESP-IDF idf.py；</mark></span></span></li></ul><div id="https://www.notion.so/abd9365beb5d423f9dce27be5ffc87b7" class="ColorfulBlock ColorfulBlock--ColorDefault Text"><p class="Text__Content"><span class="SemanticStringArray"></span></p></div></li><li id="https://www.notion.so/7d286835205e4262a309dfa4a6ec26bf" class="NumberedList" value="2"><span class="SemanticStringArray"><span class="SemanticString"><mark class="SemanticString__Fragment SemanticString__Fragment--HighlightedColor SemanticString__Fragment--ColorDefault">non_std 应用:</mark></span></span><ul class="BulletedListWrapper"><li id="https://www.notion.so/734333fd5c8d4aab98b5b24a0b8b3fa1" class="BulletedList"><span class="SemanticStringArray"><span class="SemanticString"><mark class="SemanticString__Fragment SemanticString__Fragment--HighlightedColor SemanticString__Fragment--ColorDefault">cargo generate esp-rs/esp-template</mark></span></span></li></ul></li></ol><div id="https://www.notion.so/1275c876a47b488c9e469e07a1fb8728" class="ColorfulBlock ColorfulBlock--ColorDefault Text"><p class="Text__Content"><span class="SemanticStringArray"><span class="SemanticString"><mark class="SemanticString__Fragment SemanticString__Fragment--HighlightedColor SemanticString__Fragment--ColorDefault">注意：</mark></span></span></p></div><ol class="NumberedListWrapper"><li id="https://www.notion.so/7681b4cb2cb24cfa8ea8b7e1a1f5e860" class="NumberedList" value="1"><span class="SemanticStringArray"><span class="SemanticString"><mark class="SemanticString__Fragment SemanticString__Fragment--HighlightedColor SemanticString__Fragment--ColorDefault">除了构建 cmake 应用外，构建纯 Rust 的 std 或 non_std 应用都只需 source ~/esp/export-esp.sh 脚本即可， </mark></span><span class="SemanticString"><mark class="SemanticString__Fragment SemanticString__Fragment--HighlightedColor SemanticString__Fragment--ColorDefault"><code class="SemanticString__Fragment SemanticString__Fragment--Code">不能同时</code></mark></span><span class="SemanticString"><mark class="SemanticString__Fragment SemanticString__Fragment--HighlightedColor SemanticString__Fragment--ColorDefault"> source ~/esp/esp-idf/v5.2.1/export.sh, 否则会构建失败。</mark></span></span></li><li id="https://www.notion.so/b05d77ea467a45919ace13490dbf58d3" class="NumberedList" value="2"><span class="SemanticStringArray"><span class="SemanticString"><mark class="SemanticString__Fragment SemanticString__Fragment--HighlightedColor SemanticString__Fragment--ColorDefault">开发 Rust ESP32 应用时，需要先确定是使用 std 还是 non_std 类型，然后选择对应的 crate 库，而不是混合使用两种类型的库。</mark></span></span></li><li id="https://www.notion.so/3293d5269ff44b49beb520d9a072911f" class="NumberedList" value="3"><span class="SemanticStringArray"><span class="SemanticString"><mark class="SemanticString__Fragment SemanticString__Fragment--HighlightedColor SemanticString__Fragment--ColorDefault">std 应用可以使用 non_std 的库，但是反过来 </mark></span><span class="SemanticString"><mark class="SemanticString__Fragment SemanticString__Fragment--HighlightedColor SemanticString__Fragment--ColorDefault"><code class="SemanticString__Fragment SemanticString__Fragment--Code">non_std 应用只应该使用 non_std 的库</code></mark></span><span class="SemanticString"><mark class="SemanticString__Fragment SemanticString__Fragment--HighlightedColor SemanticString__Fragment--ColorDefault"> 。</mark></span></span></li></ol><div id="https://www.notion.so/31eee765841a4d1d969b73d0bed36872" class="ColorfulBlock ColorfulBlock--ColorDefault Text"><p class="Text__Content"><span class="SemanticStringArray"><span class="SemanticString"><mark class="SemanticString__Fragment SemanticString__Fragment--HighlightedColor SemanticString__Fragment--ColorDefault">参考：</mark></span><span class="SemanticString"><a class="SemanticString__Fragment SemanticString__Fragment--Link" href="https://blog.theembeddedrustacean.com/the-embedded-rust-esp-development-ecosystem"><mark class="SemanticString__Fragment SemanticString__Fragment--HighlightedColor SemanticString__Fragment--ColorDefault">The Embedded Rust ESP Development Ecosystem</mark></a></span></span></p></div></article>
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