https://blog.cassdev.com/tags/edge-tpu/ Recent content in Edge TPU on Cassius0924 的博客 Hugo -- 0.148.2 zh-CN Copyright © 2025-2026 Cassius0924. All rights reserved. Sun, 16 Jun 2024 11:20:31 +0800 https://blog.cassdev.com/posts/google-coral-dev-board-%E4%BF%AE%E6%94%B9%E9%A3%8E%E6%89%87%E8%BD%AC%E5%8A%A8%E6%B8%A9%E5%BA%A6%E9%98%88%E5%80%BC%E6%8C%87%E5%8D%97/ Sun, 16 Jun 2024 11:20:31 +0800 https://blog.cassdev.com/posts/google-coral-dev-board-%E4%BF%AE%E6%94%B9%E9%A3%8E%E6%89%87%E8%BD%AC%E5%8A%A8%E6%B8%A9%E5%BA%A6%E9%98%88%E5%80%BC%E6%8C%87%E5%8D%97/ <p>Google Coral Dev Board 是一款功能强大的开发板，可用于构建机器学习应用程序。该板配备了 Edge TPU，这是一款专门用于机器学习任务的加速器。Edge TPU 非常高效，但它也可能会产生热量。如果温度过高，Edge TPU 可能会降频或关闭。</p> <h2 id="查看目前-tpu-温度">查看目前 TPU 温度</h2><p>使用命令查看目前开发板核心 TPU 的温度，输出温度为1000倍的摄氏度。</p> <div class="highlight"><pre tabindex="0" class="chroma"><code class="language-shell" data-lang="shell"><span class="line"><span class="cl">cat /sys/class/thermal/thermal_zone0/temp </span></span></code></pre></div><p>如输出<code>54000</code>，则代表当前温度为54摄氏度。</p> <h2 id="修改散热器温度阈值">修改散热器温度阈值</h2><p>禁用热管理：</p> <div class="highlight"><pre tabindex="0" class="chroma"><code class="language-shell" data-lang="shell"><span class="line"><span class="cl"><span class="nb">echo</span> <span class="s2">&#34;disabled&#34;</span> &gt; /sys/devices/virtual/thermal/thermal_zone0/mode </span></span></code></pre></div><p>修改散热器温度阈值为50摄氏度</p> <div class="highlight"><pre tabindex="0" class="chroma"><code class="language-shell" data-lang="shell"><span class="line"><span class="cl"><span class="nb">echo</span> <span class="m">50000</span> &gt; /sys/devices/platform/gpio_fan/hwmon/hwmon0/fan1_target </span></span></code></pre></div> https://blog.cassdev.com/posts/macos-%E4%B8%BA-google-coral-dev-board-%E5%88%B7%E5%85%A5%E7%B3%BB%E7%BB%9F%E9%95%9C%E5%83%8F%E6%8C%87%E5%8D%97/ Sun, 16 Jun 2024 11:20:31 +0800 https://blog.cassdev.com/posts/macos-%E4%B8%BA-google-coral-dev-board-%E5%88%B7%E5%85%A5%E7%B3%BB%E7%BB%9F%E9%95%9C%E5%83%8F%E6%8C%87%E5%8D%97/ <p>本指南旨在帮助 macOS 开发者为 Google Coral Dev Board （Google Edege TPU） 通过 OTG 刷入 Mendel Linux 系统。</p> <h2 id="第一步连接到开发板串行控制台">第一步：连接到开发板串行控制台</h2><h3 id="安装-usb-转-uart-bridge-vcp-驱动程序">安装 USB 转 UART Bridge VCP 驱动程序</h3><p>官方下载地址：<a href="https://www.silabs.com/developers/usb-to-uart-bridge-vcp-drivers?tab=downloads">https://www.silabs.com/developers/usb-to-uart-bridge-vcp-drivers?tab=downloads</a></p> <p><img alt="CP210x VCP" loading="lazy" src="https://s2.loli.net/2023/07/25/5n7sKqk1ValvcFR.png"></p> <p>下载完成后，双击运行并安装即可。</p> <h3 id="安装辅助程序">安装辅助程序</h3><p>通过 Homebrew 安装：</p> <div class="highlight"><pre tabindex="0" class="chroma"><code class="language-shell" data-lang="shell"><span class="line"><span class="cl">sudo brew install screen fastboot </span></span></code></pre></div><h3 id="连接开发板">连接开发板</h3><p>先不给开发板供电，使用 micro-B USB 线将 Mac 连接到开发板。连接成功后会开发板会亮起绿色🟩和橙色🟧指示灯。</p> <p><img alt="micro USB" loading="lazy" src="https://s2.loli.net/2023/07/26/8miISKlWOMy149J.jpg"></p> <p>随后使用命令查看串口连接是否正常工作：</p> <div class="highlight"><pre tabindex="0" class="chroma"><code class="language-shell" data-lang="shell"><span class="line"><span class="cl">ls /dev/cu* </span></span></code></pre></div><p>连接正常应该会列出<code>/dev/cu.SLAB_USBtoUART</code>，如下图所示。</p> <p><img alt="ls /dev/cu*" loading="lazy" src="https://s2.loli.net/2023/07/26/yafnbF9HUe8DQqT.png"></p> <p>然后使用<code>screen</code>命令连接开发板串行命令行：</p> <div class="highlight"><pre tabindex="0" class="chroma"><code class="language-shell" data-lang="shell"><span class="line"><span class="cl">screen /dev/cu.SLAB_USBtoUART <span class="m">115200</span> </span></span></code></pre></div><p>此时命令行应为空白，因为开发板未供电开机。</p> <h3 id="给开发板供电">给开发板供电</h3><p>如图所示，将开发板电源插入，电源接口为右边的 USB-C 接口。</p> <p><img alt="Power" loading="lazy" src="https://s2.loli.net/2023/07/26/sHYdWNjafQCeTwl.jpg"></p> <p>连接后开发板会亮起电源指示灯并转动风扇。串行命令行则会打印开发板的开机信息：</p> <p><img alt="Coral Dev Board power on" loading="lazy" src="https://s2.loli.net/2023/07/26/h8JnuNpzWBsG25I.png"></p> <p>接着在串行命令行输入命令使开发板进入 fastboot 模式：</p> <div class="highlight"><pre tabindex="0" class="chroma"><code class="language-shell" data-lang="shell"><span class="line"><span class="cl">fastboot <span class="m">0</span> </span></span></code></pre></div><p><img alt="fastboot 0" loading="lazy" src="https://s2.loli.net/2023/07/26/owkygYAm5JTUxjt.png"></p> <h2 id="第二步刷入-mendel-linux-系统">第二步：刷入 Mendel Linux 系统</h2><h3 id="下载-mendel-linux-系统镜像">下载 Mendel Linux 系统镜像</h3><p>回到 Mac，下载 Mendel Linux 系统镜像，官方下载地址：<a href="https://coral.ai/software/#mendel-dev-board">https://coral.ai/software/#mendel-dev-board</a></p>