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<div class=" wh_topic_content body "><main role="main"><article class="- topic/topic topic" role="article" aria-labelledby="ariaid-title1"><span class="edit-link" style="font-size:12px; opacity:0.6; text-align:right; vertical-align:middle"><a target="_blank" href="http://172.16.35.88/tasks/jdssno1uvvbf2mltu9kb9v3if05d5gopuakboe8hlud18rma/edit/F:/aicdita/aicdita-cn/topics/sdk/pm/pm_config_guide.dita">Edit online</a></span><h1 class="- topic/title title topictitle1" id="ariaid-title1">PM 配置</h1><div class="date inPage">15 Jan 2024</div><div style="color: gray;">
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Read time: 1 minute(s)
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</div><div class="- topic/body body"><section class="- topic/section section" id="id__pm" data-ofbid="id__pm"><h2 class="- topic/title title sectiontitle">使能 PM 驱动</h2>
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<div class="- topic/p p" data-ofbid="d113451e24__20250121171555">在 RT-Thread
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中，使能 PM 驱动是实现电源管理的第一步。<ol class="- topic/ol ol" id="id__ol_xcv_qp1_ddc" data-ofbid="id__ol_xcv_qp1_ddc"><li class="- topic/li li" data-ofbid="d113451e27__20250121171555">在 <span class="- topic/ph ph">Luban-Lite</span> 根目录下执行 <span class="+ topic/keyword sw-d/cmdname keyword cmdname">scons --menuconfig</span>，进入 menuconfig
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的功能配置界面，按如下选择，使能 PM
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驱动：<pre class="+ topic/pre pr-d/codeblock pre codeblock language-c" id="id__codeblock_nvg_lp1_ddc" data-ofbid="id__codeblock_nvg_lp1_ddc">Board options --->
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[*] Using Power Management</pre></li><li class="- topic/li li" data-ofbid="d113451e37__20250121171555">重新编译 RT-Thread，并确保生成的新映像文件包含了电源管理组件。</li><li class="- topic/li li" data-ofbid="d113451e39__20250121171555">设置休眠模式。<p class="- topic/p p" data-ofbid="d113451e41__20250121171555">一旦使能了 PM 驱动，RT-Thread 会自动初始化并使能其电源管理框架。默认情况下，系统没有任何功耗模式请求时，会自动进入
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deep sleep
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mode。</p><pre class="+ topic/pre pr-d/codeblock pre codeblock language-c" id="id__codeblock_nvg_lp1_ddd" data-ofbid="id__codeblock_nvg_lp1_ddd">Board options --->
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[*] Using Power Management
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PM configure --->
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Select <strong class="hl-keyword">default</strong> sleep mode (deep sleep mode) --->
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( ) light sleep mode
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(X) deep sleep mode</pre><div class="- topic/p p" data-ofbid="d113451e45__20250121171555">RT-Thread
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提供了以下主要的休眠模式，可以根据应用需求选择：<ul class="- topic/ul ul" id="id__ul_kk3_jq1_ddc" data-ofbid="id__ul_kk3_jq1_ddc"><li class="- topic/li li" data-ofbid="d113451e48__20250121171555"><span class="+ topic/keyword pr-d/parmname keyword parmname">deep sleep
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mode</span>：大部分系统组件都会停止工作，仅保留最基本的唤醒能力。适用于长时间不需要活动的场景。</li><li class="- topic/li li" data-ofbid="d113451e52__20250121171555"><span class="+ topic/keyword pr-d/parmname keyword parmname">light sleep
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mode</span>：部分系统组件仍然保持低功耗运行，可以快速响应外部事件。适用于需要频繁唤醒的场景。</li></ul></div></li></ol></div>
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