tagetage 发表于 2020-8-15 08:30

【树莓派4B测评】树莓派4的IP地址设定，源更换，增加开机键和散热。

<div class='showpostmsg'><p style="text-align:justify"><span style="font-size:10.5pt"><span style="font-family:Calibri,sans-serif"><span style="font-family:宋体">树莓派</span>4<span style="font-family:宋体">的</span>IP<span style="font-family:宋体">地址设定，源更换，增加开机键和散热。</span></span></span></p>

<p style="text-align:justify"><span style="font-size:10.5pt"><span style="font-family:Calibri,sans-serif"><span lang="EN-US" style="font-size:16.0pt"><span style="font-family:宋体">1</span></span><span style="font-size:16.0pt"><span style="font-family:宋体">，固定IP地址设定</span></span></span></span></p>

<p style="text-align:justify"><span style="font-size:10.5pt"><span style="font-family:Calibri,sans-serif"><span style="font-family:宋体">树莓派安装完系统以后默认是自动获取</span>IP<span style="font-family:宋体">，为了方便调试，需要将树莓派设定为固定</span>IP<span style="font-family:宋体">地址，新的树莓派不像以前的系统需要更改配置文件，直接在桌面就可以更改</span>IP<span style="font-family:宋体">地址了。（图一中的</span>IP<span style="font-family:宋体">地址后面有一个</span>/24,<span style="font-family:宋体">我不知道什么意思，有哪位网友知道在帖子中回复一下）。</span></span></span></p>

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<p style="text-align:justify"><span style="font-size:10.5pt"><span style="font-family:Calibri,sans-serif"><span lang="EN-US" style="font-size:16.0pt"><span style="font-family:宋体">2</span></span><span style="font-size:16.0pt"><span style="font-family:宋体">，国内源的更换，</span></span></span></span></p>

<p style="text-align:justify"><span style="font-size:10.5pt"><span style="font-family:Calibri,sans-serif"><span style="font-family:宋体">树莓派系统安装后默认使用树莓派官方的镜像源来更新软件，由于网络原因，国内访问速度非常慢甚至不能访问，因此需要换成国内的镜像源。树莓派官方提供了一个更新源列表（</span>https://www.raspbian.org/RaspbianMirrors<span style="font-family:宋体">），在这里我们使用清华大学的源来替换。</span></span></span></p>

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<p style="text-align:justify"><span style="font-size:10.5pt"><span style="font-family:Calibri,sans-serif"><span style="font-family:宋体">编辑</span>sources.list <span style="font-family:宋体">文件：</span></span></span></p>

<p style="text-align:justify"><span style="font-size:10.5pt"><span style="font-family:Calibri,sans-serif">sudo nano /etc/apt/sources.list&nbsp; </span></span></p>

<p style="text-align:justify"><span style="font-size:10.5pt"><span style="font-family:Calibri,sans-serif"><span style="font-family:宋体">将树莓派官方的源用&ldquo;</span>#<span style="font-family:宋体">&rdquo;注释掉，然后更换成清华大学的源，修改后的见下面。</span></span></span></p>

<p style="text-align:justify"><span style="font-size:10.5pt"><span style="font-family:Calibri,sans-serif">deb https://mirrors.tuna.tsinghua.edu.cn/raspbian/raspbian/ buster main contrib non-free rpi</span></span></p>

<p style="text-align:justify"><span style="font-size:10.5pt"><span style="font-family:Calibri,sans-serif">#deb http://raspbian.raspberrypi.org/raspbian/ buster main contrib non-free rpi</span></span></p>

<p style="text-align:justify"><span style="font-size:10.5pt"><span style="font-family:Calibri,sans-serif"># Uncomment line below then &#39;apt-get update&#39; to enable &#39;apt-get source&#39;</span></span></p>

<p style="text-align:justify"><span style="font-size:10.5pt"><span style="font-family:Calibri,sans-serif">#deb-src http://raspbian.raspberrypi.org/raspbian/ buster main contrib non-free rpi</span></span></p>

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<p style="text-align:justify"><span style="font-size:10.5pt"><span style="font-family:Calibri,sans-serif"><span style="font-family:宋体">最后使用</span> Ctrl+O <span style="font-family:宋体">回车后保存文件，</span>Ctrl+X <span style="font-family:宋体">退出编辑器。</span></span></span></p>

<p style="text-align:justify"><span style="font-size:10.5pt"><span style="font-family:Calibri,sans-serif"><span style="font-family:宋体">然后必须使用</span>sudo apt-get update <span style="font-family:宋体">更新软件列表。</span></span></span></p>

<p style="text-align:justify"><span style="font-size:10.5pt"><span style="font-family:Calibri,sans-serif"><span style="font-family:宋体">如果愿意把软件升级到最新版本，就使用</span>sudo apt-get upgrade<span style="font-family:宋体">这个命令。</span></span></span></p>

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<p style="text-align:justify"><span style="font-size:10.5pt"><span style="font-family:Calibri,sans-serif"><span lang="EN-US" style="font-size:15.0pt"><span style="font-family:宋体">3</span></span><span style="font-size:15.0pt"><span style="font-family:宋体">，增加开机键和风扇散热</span></span></span></span></p>

<p style="text-align:justify"><span style="font-size:10.5pt"><span style="font-family:Calibri,sans-serif"><span style="font-family:宋体">树莓派关机后，如果想再次启动就需要重新插拔电源插头，很不方便，插头插拔寿命是有次数的，而且劣质电源还有上电冲击，经查找资料，只要在</span> /boot/config.txt <span style="font-family:宋体">文件末尾添加一句命令（</span>dtoverlay=gpio-shutdown<span style="font-family:宋体">）就能实现使用</span>GPIO3<span style="font-family:宋体">按键开机，添加完命令以后需要重启才能生效。树莓派工作时</span>CPU<span style="font-family:宋体">发热量很大，找到了家里最小的风扇先暂时使用。防止</span>CPU<span style="font-family:宋体">满载时</span>CPU<span style="font-family:宋体">降频或烧毁。</span></span></span></p>

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okhxyyo 发表于 2020-8-16 14:20

<p><span style="font-size:16px;">树莓派4B测评汇总<br />
<a href="https://bbs.eeworld.com.cn/thread-1137107-1-1.html" target="_blank">https://bbs.eeworld.com.cn/thread-1137107-1-1.html</a></span></p>
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