368 lines
45 KiB
HTML
368 lines
45 KiB
HTML
|
<!DOCTYPE html><html xmlns="http://www.w3.org/1999/xhtml" xml:lang="zh-cn" lang="zh-cn" data-whc_version="27.0">
|
|||
|
|
<head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8"/><meta name="viewport" content="width=device-width, initial-scale=1.0"/><meta http-equiv="X-UA-Compatible" content="IE=edge"/><meta name="description" content="初始化流程 RTC 驱动的初始化过程见 aic_rtc_probe() 函数，除了普通 platform 设备的处理过程（申请 regs 资源、clk、reset）外，需要调用 RTC 子系统的接口 rtc_register_device() 来注册 RTC 设备。 # define rtc_register_device(device) ..."/><meta name="DC.rights.owner" content="(C) 版权 2025"/><meta name="copyright" content="(C) 版权 2025"/><meta name="generator" content="DITA-OT"/><meta name="DC.type" content="concept"/><meta name="DC.relation" content="../../../topics/sdk/rtc/rtc-design-intro.html"/><meta name="DC.relation" content="../../../topics/sdk/rtc/rtc-design-intro.html"/><meta name="DC.relation" content="../../../topics/sdk/rtc/rtc-data-structure.html"/><meta name="DC.contributor" content="yan.wang"/><meta name="DC.creator" content="yan.wang"/><meta name="DC.date.modified" content="2024-01-15"/><meta name="DC.format" content="HTML5"/><meta name="DC.identifier" content="rtc_key_procedures"/><meta name="DC.language" content="zh-CN"/><title>关键流程设计</title><!-- Generated with build number 2024112209. --><meta name="wh-path2root" content="../../../"/><meta name="wh-toc-id" content="rtc_key_procedures-d4445e3606"/><meta name="wh-source-relpath" content="topics/sdk/rtc/rtc-key-procedure.dita"/><meta name="wh-out-relpath" content="topics/sdk/rtc/rtc-key-procedure.html"/>
|
|||
|
|
|
|||
|
|
<link rel="stylesheet" type="text/css" href="../../../webhelp/app/commons.css?buildId=2024112209"/>
|
|||
|
|
<link rel="stylesheet" type="text/css" href="../../../webhelp/app/topic.css?buildId=2024112209"/>
|
|||
|
|
|
|||
|
|
<script src="../../../webhelp/app/options/properties.js?buildId=20250123154945"></script>
|
|||
|
|
<script src="../../../webhelp/app/localization/strings.js?buildId=2024112209"></script>
|
|||
|
|
<script src="../../../webhelp/app/search/index/keywords.js?buildId=20250123154945"></script>
|
|||
|
|
<script defer="defer" src="../../../webhelp/app/commons.js?buildId=2024112209"></script>
|
|||
|
|
<script defer="defer" src="../../../webhelp/app/topic.js?buildId=2024112209"></script>
|
|||
|
|
<link rel="stylesheet" type="text/css" href="../../../webhelp/template/aic-styles-web.css?buildId=2024112209"/><link rel="stylesheet" type="text/css" href="../../../webhelp/template/notes.css?buildId=2024112209"/><link rel="stylesheet" type="text/css" href="../../../webhelp/template/aic-common.css?buildId=2024112209"/><link rel="stylesheet" type="text/css" href="../../../webhelp/template/aic-images.css?buildId=2024112209"/><link rel="stylesheet" type="text/css" href="../../../webhelp/template/footnote.css?buildId=2024112209"/><link rel="stylesheet" type="text/css" href="../../../webhelp/template/aic-web-watermark.css?buildId=2024112209"/><link rel="stylesheet" type="text/css" href="../../../webhelp/template/topic-body-list.css?buildId=2024112209"/></head>
|
|||
|
|
|
|||
|
|
<body id="rtc_key_procedures" class="wh_topic_page frmBody">
|
|||
|
|
<a href="#wh_topic_body" class="sr-only sr-only-focusable">
|
|||
|
|
跳转到主要内容
|
|||
|
|
</a>
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
<header class="navbar navbar-default wh_header">
|
|||
|
|
<div class="container-fluid">
|
|||
|
|
<div class="wh_header_flex_container navbar-nav navbar-expand-md navbar-dark">
|
|||
|
|
<div class="wh_logo_and_publication_title_container">
|
|||
|
|
<div class="wh_logo_and_publication_title">
|
|||
|
|
|
|||
|
|
<a href="http://www.artinchip.com" class=" wh_logo d-none d-sm-block "><img src="../../../company-logo-white.png" alt=" Linux SDK 使用指南 SDK 指南文件 "/></a>
|
|||
|
|
<div class=" wh_publication_title "><a href="../../../index.html"><span class="booktitle"> <span class="ph mainbooktitle">Linux SDK 使用指南</span> <span class="ph booktitlealt">SDK 指南文件</span> </span></a></div>
|
|||
|
|
|
|||
|
|
</div>
|
|||
|
|
|
|||
|
|
|
|||
|
|
</div>
|
|||
|
|
|
|||
|
|
<div class="wh_top_menu_and_indexterms_link collapse navbar-collapse" id="wh_top_menu_and_indexterms_link">
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
</div>
|
|||
|
|
</div>
|
|||
|
|
</div>
|
|||
|
|
</header>
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
<div class=" wh_search_input navbar-form wh_topic_page_search search " role="form">
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
<form id="searchForm" method="get" role="search" action="../../../search.html"><div><input type="search" placeholder="搜索 " class="wh_search_textfield" id="textToSearch" name="searchQuery" aria-label="搜索查询" required="required"/><button type="submit" class="wh_search_button" aria-label="搜索"><span class="search_input_text">搜索</span></button></div></form>
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
</div>
|
|||
|
|
|
|||
|
|
<div class="container-fluid" id="wh_topic_container">
|
|||
|
|
<div class="row">
|
|||
|
|
|
|||
|
|
<nav class="wh_tools d-print-none navbar-expand-md" aria-label="Tools">
|
|||
|
|
|
|||
|
|
<div data-tooltip-position="bottom" class=" wh_breadcrumb "><ol class="d-print-none"><li><span class="home"><a href="../../../index.html"><span>主页</span></a></span></li><li><div class="topicref" data-id="id"><div class="title"><a href="../../../topics/sdk/chapter-advanced-app.html">高级应用</a><div class="wh-tooltip"><p class="shortdesc">系统、存储、多媒体、接口、安全等模块的详细配置和设计说明。</p></div></div></div></li><li><div class="topicref" data-id="chapter-system"><div class="title"><a href="../../../topics/chapter-title/chapter-system.html">系统</a><div class="wh-tooltip"><p class="shortdesc"></p></div></div></div></li><li><div class="topicref" data-id="concept_n2p_sn3_pzb"><div class="title"><a href="../../../topics/sdk/rtc/rtc-user-guide.html">RTC 使用指南</a></div></div></li><li><div class="topicref" data-id="rtc_design_intro"><div class="title"><a href="../../../topics/sdk/rtc/rtc-design-intro.html">设计说明</a></div></div></li><li class="active"><div class="topicref" data-id="rtc_key_procedures"><div class="title"><a href="../../../topics/sdk/rtc/rtc-key-procedure.html">关键流程设计</a></div></div></li></ol></div>
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
<div class="wh_right_tools">
|
|||
|
|
<button class="wh_hide_highlight" aria-label="切换搜索突出显示" title="切换搜索突出显示"></button>
|
|||
|
|
<button class="webhelp_expand_collapse_sections" data-next-state="collapsed" aria-label="折叠截面" title="折叠截面"></button>
|
|||
|
|
<div class=" wh_navigation_links "><span id="topic_navigation_links" class="navheader">
|
|||
|
|
|
|||
|
|
<span class="navprev"><a class="- topic/link link" href="../../../topics/sdk/rtc/rtc-design-intro.html" title="设计说明" aria-label="上一主题: 设计说明" rel="prev"></a></span>
|
|||
|
|
<span class="navnext"><a class="- topic/link link" href="../../../topics/sdk/rtc/rtc-data-structure.html" title="数据结构设计" aria-label="下一主题: 数据结构设计" rel="next"></a></span> </span></div>
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
<div class=" wh_print_link print d-none d-md-inline-block "><button onClick="window.print()" title="打印此页" aria-label="打印此页"></button></div>
|
|||
|
|
|
|||
|
|
<button type="button" id="wh_toc_button" class="custom-toggler navbar-toggler collapsed wh_toggle_button navbar-light" aria-expanded="false" aria-label="Toggle publishing table of content" aria-controls="wh_publication_toc">
|
|||
|
|
<span class="navbar-toggler-icon"></span>
|
|||
|
|
</button>
|
|||
|
|
</div>
|
|||
|
|
|
|||
|
|
</nav>
|
|||
|
|
</div>
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
<div class="wh_content_area">
|
|||
|
|
<div class="row">
|
|||
|
|
|
|||
|
|
<nav id="wh_publication_toc" class="col-lg-3 col-md-3 col-sm-12 d-md-block d-none d-print-none" aria-label="Table of Contents Container">
|
|||
|
|
<div id="wh_publication_toc_content">
|
|||
|
|
|
|||
|
|
<div class=" wh_publication_toc " data-tooltip-position="right"><span class="expand-button-action-labels"><span id="button-expand-action" role="button" aria-label="Expand"></span><span id="button-collapse-action" role="button" aria-label="Collapse"></span><span id="button-pending-action" role="button" aria-label="Pending"></span></span><ul role="tree" aria-label="Table of Contents"><li role="treeitem"><div data-tocid="revinfo_linux-d4445e1079" class="topicref" data-id="revinfo_linux" data-state="leaf"><span role="button" class="wh-expand-btn"></span><div class="title"><a href="../../../topics/revinfo/revinfo_linux.html" id="revinfo_linux-d4445e1079-link">修订记录</a></div></div></li><li role="treeitem" aria-expanded="false"><div data-tocid="id-d4445e1096" class="topicref" data-id="id" data-state="not-ready"><span role="button" tabindex="0" aria-labelledby="button-expand-action id-d4445e1096-link" class="wh-expand-btn"></span><div class="title"><a href="../../../topics/sdk/env/sdk-compile.html" id="id-d4445e1096-link">SDK 编译</a><div class="wh-tooltip"><p class="shortdesc">介绍不同编译环境下 SDK 的详细编译流程。</p></div></div></div></li><li role="treeitem" aria-expanded="false"><div data-tocid="tocId-d4445e1240" class="topicref" data-state="not-ready"><span role="button" tabindex="0" aria-labelledby="button-expand-action tocId-d4445e1240-link" class="wh-expand-btn"></span><div class="title"><a href="../../../topics/sdk/advanced/lb_usage_commands.html" id="tocId-d4445e1240-link">使用指南</a></div></div></li><li role="treeitem" aria-expanded="false"><div data-tocid="concept_rcx_czh_pzb-d4445e1360" class="topicref" data-id="concept_rcx_czh_pzb" data-state="not-ready"><span role="button" tabindex="0" aria-labelledby="button-expand-action concept_rcx_czh_pzb-d4445e1360-link" class="wh-expand-btn"></span><div class="title"><a href="../../../topics/sdk/chapter-app.html" id="concept_rcx_czh_pzb-d4445e1360-link">应用场景</a><div class="wh-tooltip"><p class="shortdesc">描述了 SDK 在不同应用场景中的配置和使用，包括系统更新、OTA、安全方案等。</p></div></div></div></li><li role="treeitem" aria-expanded="false"><div data-tocid="id-d4445e1678" class="topicref" data-id="id" data-state="not-ready"><span role="button" tabindex="0" aria-labelledby="button-expand-action id-d4445e1678-link" class="wh-expand-btn"></span><div class="title"><a href="../../../topics/sdk/peripheral/peripheral-intro.html" id="id-d4445e1678-link">外设移植</a><div class="wh-tooltip"><p class="shortdesc"><span class="ph">触摸屏、显示器、WIFI 模块、按键</span>等外设的介绍和使用说明。</p></div></div></div></li><li role="treeitem" aria-expanded="false"><div data-tocid="id-d4445e1964" class="topicref" data-id="id" data-state="not-ready"><span role="button" tabindex="0" aria-labelledby="button-expand-action id-d4445e1964-link" class="wh-expand-btn"></span><div class="title"><a href="../../../topics/sdk/bringup/chapter-bringup.html" id="id-d4445e1964-link">BringUp</a><div class="wh-tooltip"><p class="shortdesc">在硬件上电后快速初始化系统，为操作系统的启动准备好必要的硬件环境。</p></div></div></div></li><li role="treeitem" aria-expanded="true"><div data-tocid="id-d4445e2153" class="topicref" data-id="id" data-state="expanded"><span role="button" tabindex="0" aria-labelledby="button-collapse-action id-d4445e2153-link" class="wh-expand-btn"></span><div class="title"><a href="../../../topics/sdk/chapter-advanced-app.html" id="id-d4445e2153-link">高级应用</a><div class="wh-tooltip"><p class="shortdesc">系统、存储、多媒体、接口、安全等模块的详细配置和设计说明。</p></div></div></div><ul role="group" class="navbar-nav nav-list"><li role="treeitem" aria-expanded="false"><div data-tocid="uBoot-d4445e2170" class="topicref" data-id="uBoot" data-state="not-ready"><span role="button" tabindex="0" aria-labelledby="button-expand-action uBoot-d4445e2170-link" class="wh-expand-btn"></span><div class="titl
|
|||
|
|
|
|||
|
|
</div>
|
|||
|
|
</nav>
|
|||
|
|
|
|||
|
|
|
|||
|
|
<div class="col-lg-7 col-md-9 col-sm-12" id="wh_topic_body">
|
|||
|
|
<button id="wh_close_publication_toc_button" class="close-toc-button d-none" aria-label="Toggle publishing table of content" aria-controls="wh_publication_toc" aria-expanded="true">
|
|||
|
|
<span class="close-toc-icon-container">
|
|||
|
|
<span class="close-toc-icon"></span>
|
|||
|
|
</span>
|
|||
|
|
</button>
|
|||
|
|
<button id="wh_close_topic_toc_button" class="close-toc-button d-none" aria-label="Toggle topic table of content" aria-controls="wh_topic_toc" aria-expanded="true">
|
|||
|
|
<span class="close-toc-icon-container">
|
|||
|
|
<span class="close-toc-icon"></span>
|
|||
|
|
</span>
|
|||
|
|
</button>
|
|||
|
|
|
|||
|
|
<div class=" wh_topic_content body "><main role="main"><article class="- topic/topic concept/concept topic concept" 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" title="Edit this document" href="http://172.16.35.88/tasks/jdssno1uvvbf2mltu9kb9v3if05d5gopuakboe8hlud18rma/edit/F:/aicdita/aicdita-cn/topics/sdk/rtc/rtc-key-procedure.dita">Edit online</a></span><h1 class="- topic/title title topictitle1" id="ariaid-title1">关键流程设计</h1>
|
|||
|
|
|
|||
|
|
<div class="date inPage">15 Jan 2024</div><div style="color: gray;">
|
|||
|
|
Read time: 3 minute(s)
|
|||
|
|
</div>
|
|||
|
|
<div class="- topic/body concept/conbody body conbody">
|
|||
|
|
<section class="- topic/section section" id="rtc_key_procedures__section_e1w_z5s_c1c" data-ofbid="rtc_key_procedures__section_e1w_z5s_c1c"><h2 class="- topic/title title sectiontitle">初始化流程</h2>
|
|||
|
|
|
|||
|
|
<p class="- topic/p p" data-ofbid="d106811e38__20250123155209">RTC 驱动的初始化过程见 aic_rtc_probe() 函数，除了普通 platform 设备的处理过程（申请 regs 资源、clk、reset）外，需要调用
|
|||
|
|
RTC 子系统的接口 rtc_register_device() 来注册 RTC 设备。</p>
|
|||
|
|
<pre class="+ topic/pre pr-d/codeblock pre codeblock language-c" id="rtc_key_procedures__pre_f1w_z5s_c1c" data-ofbid="rtc_key_procedures__pre_f1w_z5s_c1c"><code>#<span class="hl-directive">define</span> rtc_register_device(device) __rtc_register_device(THIS_MODULE, device)</code></pre>
|
|||
|
|
<div class="- topic/p p" data-ofbid="d106811e44__20250123155209">其中参数 device 中关键信息有：最大值、ops 等，aic_rtc_ops
|
|||
|
|
定义如下：<pre class="+ topic/pre pr-d/codeblock pre codeblock language-c" id="rtc_key_procedures__codeblock_h3r_kvs_c1c" data-ofbid="rtc_key_procedures__codeblock_h3r_kvs_c1c"><code><strong class="hl-keyword">static</strong> <strong class="hl-keyword">const</strong> <strong class="hl-keyword">struct</strong> rtc_class_ops aic_rtc_ops = {
|
|||
|
|
.read_time = aic_rtc_read_time,
|
|||
|
|
.set_time = aic_rtc_set_time,
|
|||
|
|
.read_alarm = aic_rtc_read_alarm,
|
|||
|
|
.set_alarm = aic_rtc_set_alarm,
|
|||
|
|
.alarm_irq_enable = aic_rtc_alarm_irq_enable,
|
|||
|
|
};</code></pre></div>
|
|||
|
|
</section>
|
|||
|
|
<section class="- topic/section section" id="rtc_key_procedures__section_h1w_z5s_c1c" data-ofbid="rtc_key_procedures__section_h1w_z5s_c1c"><h2 class="- topic/title title sectiontitle">校准算法设计</h2>
|
|||
|
|
|
|||
|
|
<div class="- topic/p p" data-ofbid="d106811e55__20250123155209">校准的算法原理是，将输入的 32 KHz 晶振时钟校准到理想的 32
|
|||
|
|
KHz，公式如下：<pre class="+ topic/pre pr-d/codeblock pre codeblock language-c" id="rtc_key_procedures__codeblock_fbx_sdg_f1c" data-ofbid="rtc_key_procedures__codeblock_fbx_sdg_f1c"><code>(<span class="hl-number">100</span> * <span class="hl-number">1024</span> * <span class="hl-number">1024</span> + <span class="hl-number">100</span> * calibrate) / (clock-rate / <span class="hl-number">32</span>) = <span class="hl-number">1024</span>
|
|||
|
|
=> calibrate = (clock-rate * <span class="hl-number">32</span> - <span class="hl-number">100</span> * <span class="hl-number">1024</span> * <span class="hl-number">1024</span>) / <span class="hl-number">100</span>;</code></pre></div>
|
|||
|
|
<p class="- topic/p p" data-ofbid="d106811e60__20250123155209">其中：</p>
|
|||
|
|
<ul class="- topic/ul ul" id="rtc_key_procedures__ul_j1w_z5s_c1c" data-ofbid="rtc_key_procedures__ul_j1w_z5s_c1c">
|
|||
|
|
<li class="- topic/li li" data-ofbid="d106811e65__20250123155209">
|
|||
|
|
<p class="- topic/p p" data-ofbid="d106811e67__20250123155209"><span class="+ topic/keyword pr-d/parmname keyword parmname">clock-rate</span>: 是用户实测 32K 晶振的频率值 * 100，需要配置在 DTS 中，详见 <a class="- topic/xref xref" href="rtc-config-guide.html#rtc_configuration__table_zjx_1ss_c1c">RTC 自定义参数</a></p>
|
|||
|
|
</li>
|
|||
|
|
<li class="- topic/li li" data-ofbid="d106811e76__20250123155209">
|
|||
|
|
<p class="- topic/p p" data-ofbid="d106811e78__20250123155209"><span class="+ topic/keyword pr-d/parmname keyword parmname">calibrate</span>: 最终要填入 RTC 控制器的校准值</p>
|
|||
|
|
<div class="- topic/note note note note_note" id="rtc_key_procedures__note_wyf_fvs_c1c" data-ofbid="rtc_key_procedures__note_wyf_fvs_c1c"><span class="note__title">注：</span> <div class="note__body">
|
|||
|
|
<p class="- topic/p p" data-ofbid="d106811e85__20250123155209">校准值 calibrate 分正负，正 - 表示 32K 晶振实际偏快了，负 - 表示 32K 晶振偏慢了。</p>
|
|||
|
|
</div></div>
|
|||
|
|
</li>
|
|||
|
|
</ul>
|
|||
|
|
</section>
|
|||
|
|
<section class="- topic/section section" id="rtc_key_procedures__section_k1w_z5s_c1c" data-ofbid="rtc_key_procedures__section_k1w_z5s_c1c"><h2 class="- topic/title title sectiontitle">系统状态的备份功能</h2>
|
|||
|
|
|
|||
|
|
<p class="- topic/p p" data-ofbid="d106811e97__20250123155209">RTC 控制器提供了 128-bit 备份寄存器 SYS_BAK，用于掉电时一些重要状态或者参数的保存。RTC 驱动将这几个寄存器封装为对外接口（
|
|||
|
|
<code class="+ topic/ph pr-d/codeph ph codeph">EXPORT_SYMBOL_GPL()</code> 的形式)，Linux 中其他驱动都可以调用。</p>
|
|||
|
|
</section>
|
|||
|
|
|
|||
|
|
<section class="- topic/section section" id="rtc_key_procedures__section_l1w_z5s_c1c" data-ofbid="rtc_key_procedures__section_l1w_z5s_c1c"><h2 class="- topic/title title sectiontitle">Reboot Reason 的设计</h2>
|
|||
|
|
|
|||
|
|
<p class="- topic/p p" data-ofbid="d106811e111__20250123155209">将<a xml:lang="zh-CN" lang="zh-CN" class="- topic/xref xref" href="rtc-key-procedure.html#rtc_key_procedures__section_k1w_z5s_c1c">系统状态的备份功能</a> 中 <strong class="+ topic/ph hi-d/b ph b">系统备份寄存器</strong> 保存不同情况的
|
|||
|
|
Reboot reason，可用于分析终端运行稳定性问题、进入快速启动模式等场景。</p>
|
|||
|
|
<p class="- topic/p p" data-ofbid="d106811e121__20250123155209">SYS_BAK 寄存器需要和 WRI 模块一起配合来完成 reason 的处理：</p>
|
|||
|
|
<ol class="- topic/ol ol" id="rtc_key_procedures__ol_m1w_z5s_c1c" data-ofbid="rtc_key_procedures__ol_m1w_z5s_c1c">
|
|||
|
|
<li class="- topic/li li" data-ofbid="d106811e126__20250123155209">WRI<p class="- topic/p p" data-ofbid="d106811e128__20250123155209">负责记录 <strong class="+ topic/ph hi-d/b ph b">硬件可监测</strong> 到的 Reboot 原因，如过温保护、看门狗复位、外部输入复位等。</p></li>
|
|||
|
|
<li class="- topic/li li" data-ofbid="d106811e134__20250123155209">SYS_BAK<p class="- topic/p p" data-ofbid="d106811e136__20250123155209">负责记录 <strong class="+ topic/ph hi-d/b ph b">软件可监测</strong> 到的 Reboot 原因，如 Suspend、Panic、进入烧写模式、正常重启等。</p></li>
|
|||
|
|
</ol>
|
|||
|
|
<p class="- topic/p p" data-ofbid="d106811e143__20250123155209">关于 Reboot 原因，梳理分类如下：</p>
|
|||
|
|
<figure class="- topic/fig fig fignone" id="rtc_key_procedures__fig_wdz_bvs_c1c" data-ofbid="rtc_key_procedures__fig_wdz_bvs_c1c">
|
|||
|
|
|
|||
|
|
<br/><div class="imagecenter"><img class="- topic/image image imagecenter" id="rtc_key_procedures__image_p1w_z5s_c1c" src="../../../images/boot/reboot_reason.png" width="576" alt="reboot_reason"/></div><br/>
|
|||
|
|
<figcaption data-caption-side="bottom" class="- topic/title title figcapcenter"><span class="figtitleprefix fig--title-label">图<span class="fig--title-label-number"> 1</span><span class="fig--title-label-punctuation">. </span></span><span class="fig--title">各种情况的 reason 梳理</span></figcaption></figure>
|
|||
|
|
<div class="- topic/note note tip note_tip" id="rtc_key_procedures__note_ntl_bvs_c1c" data-ofbid="rtc_key_procedures__note_ntl_bvs_c1c"><span class="note__title">提示：</span> <div class="note__body">
|
|||
|
|
<p class="- topic/p p" data-ofbid="d106811e161__20250123155209">其中“外部 IO 复位”指常用的 Reset 按键。</p>
|
|||
|
|
</div></div>
|
|||
|
|
<div class="- topic/p p" data-ofbid="d106811e165__20250123155209">定义 <strong class="+ topic/ph hi-d/b ph b">SYS_BAK0 寄存器（4~7bit）</strong> 的值如下：（详见
|
|||
|
|
include/linux/reboot-reason.h）<pre class="+ topic/pre pr-d/codeblock pre codeblock language-c" id="rtc_key_procedures__codeblock_zdl_53t_c1c" data-ofbid="rtc_key_procedures__codeblock_zdl_53t_c1c"><code><strong class="hl-keyword">enum</strong> aic_reboot_reason {
|
|||
|
|
REBOOT_REASON_COLD = <span class="hl-number">0</span>,
|
|||
|
|
REBOOT_REASON_CMD_REBOOT = <span class="hl-number">1</span>,
|
|||
|
|
REBOOT_REASON_CMD_SHUTDOWN = <span class="hl-number">2</span>,
|
|||
|
|
REBOOT_REASON_SUSPEND = <span class="hl-number">3</span>,
|
|||
|
|
REBOOT_REASON_UPGRADE = <span class="hl-number">4</span>,
|
|||
|
|
REBOOT_REASON_FASTBOOT = <span class="hl-number">5</span>,
|
|||
|
|
|
|||
|
|
<em class="hl-comment">/* Some software exception reason */</em>
|
|||
|
|
REBOOT_REASON_SW_LOCKUP = <span class="hl-number">8</span>,
|
|||
|
|
REBOOT_REASON_HW_LOCKUP = <span class="hl-number">9</span>,
|
|||
|
|
REBOOT_REASON_PANIC = <span class="hl-number">10</span>,
|
|||
|
|
REBOOT_REASON_RAMDUMP = <span class="hl-number">11</span>,
|
|||
|
|
|
|||
|
|
<em class="hl-comment">/* Some hardware exception reason */</em>
|
|||
|
|
REBOOT_REASON_RTC = <span class="hl-number">17</span>,
|
|||
|
|
REBOOT_REASON_EXTEND = <span class="hl-number">18</span>,
|
|||
|
|
REBOOT_REASON_DM = <span class="hl-number">19</span>,
|
|||
|
|
REBOOT_REASON_OTP = <span class="hl-number">20</span>,
|
|||
|
|
REBOOT_REASON_UNDER_VOL = <span class="hl-number">21</span>,
|
|||
|
|
};</code></pre></div>
|
|||
|
|
<p class="- topic/p p" data-ofbid="d106811e173__20250123155209">针对不同场景，SYS_BAK0 寄存器中的 reason 和 WRI 中的 FLAG 值对应如下：</p>
|
|||
|
|
<div class="table-container"><table class="- topic/table table frame-all" id="rtc_key_procedures__table_r1w_z5s_c1c" data-ofbid="rtc_key_procedures__table_r1w_z5s_c1c" data-cols="4"><caption></caption><colgroup><col style="width:20.40816326530612%"/><col style="width:36.93877551020408%"/><col style="width:22.244897959183675%"/><col style="width:20.40816326530612%"/></colgroup><thead class="- topic/thead thead">
|
|||
|
|
<tr class="- topic/row">
|
|||
|
|
<th class="- topic/entry entry colsep-1 rowsep-1" id="rtc_key_procedures__table_r1w_z5s_c1c__entry__1">场景</th>
|
|||
|
|
<th class="- topic/entry entry colsep-1 rowsep-1" id="rtc_key_procedures__table_r1w_z5s_c1c__entry__2">触发行为</th>
|
|||
|
|
<th class="- topic/entry entry colsep-1 rowsep-1" id="rtc_key_procedures__table_r1w_z5s_c1c__entry__3">WRI 状态</th>
|
|||
|
|
<th class="- topic/entry entry colsep-0 rowsep-1" id="rtc_key_procedures__table_r1w_z5s_c1c__entry__4">SYS_BAK 状态值</th>
|
|||
|
|
</tr>
|
|||
|
|
</thead><tbody class="- topic/tbody tbody">
|
|||
|
|
<tr class="- topic/row">
|
|||
|
|
<td class="- topic/entry entry colsep-1 rowsep-1" headers="rtc_key_procedures__table_r1w_z5s_c1c__entry__1" rowspan="3">
|
|||
|
|
<p class="- topic/p p" data-ofbid="d106811e213__20250123155209">正常重启</p>
|
|||
|
|
</td>
|
|||
|
|
<td class="- topic/entry entry colsep-1 rowsep-1" headers="rtc_key_procedures__table_r1w_z5s_c1c__entry__2">按 Reset 按键</td>
|
|||
|
|
<td class="- topic/entry entry colsep-1 rowsep-1" headers="rtc_key_procedures__table_r1w_z5s_c1c__entry__3">EXT_RST</td>
|
|||
|
|
<td class="- topic/entry entry colsep-0 rowsep-1" headers="rtc_key_procedures__table_r1w_z5s_c1c__entry__4">COLD</td>
|
|||
|
|
</tr>
|
|||
|
|
<tr class="- topic/row">
|
|||
|
|
<td class="- topic/entry entry colsep-1 rowsep-1" headers="rtc_key_procedures__table_r1w_z5s_c1c__entry__2">shell 中执行 reboot 命令</td>
|
|||
|
|
<td class="- topic/entry entry colsep-1 rowsep-1" headers="rtc_key_procedures__table_r1w_z5s_c1c__entry__3">WDOG_RST</td>
|
|||
|
|
<td class="- topic/entry entry colsep-0 rowsep-1" headers="rtc_key_procedures__table_r1w_z5s_c1c__entry__4">CMD_REBOOT</td>
|
|||
|
|
</tr>
|
|||
|
|
<tr class="- topic/row">
|
|||
|
|
<td class="- topic/entry entry colsep-1 rowsep-1" headers="rtc_key_procedures__table_r1w_z5s_c1c__entry__2">shell 执行 aicupg 命令进入烧写</td>
|
|||
|
|
<td class="- topic/entry entry colsep-1 rowsep-1" headers="rtc_key_procedures__table_r1w_z5s_c1c__entry__3">WDOG_RST</td>
|
|||
|
|
<td class="- topic/entry entry colsep-0 rowsep-1" headers="rtc_key_procedures__table_r1w_z5s_c1c__entry__4">UPGRADE</td>
|
|||
|
|
</tr>
|
|||
|
|
<tr class="- topic/row">
|
|||
|
|
<td class="- topic/entry entry colsep-1 rowsep-1" headers="rtc_key_procedures__table_r1w_z5s_c1c__entry__1" rowspan="3">
|
|||
|
|
<p class="- topic/p p" data-ofbid="d106811e255__20250123155209">正常关机</p>
|
|||
|
|
</td>
|
|||
|
|
<td class="- topic/entry entry colsep-1 rowsep-1" headers="rtc_key_procedures__table_r1w_z5s_c1c__entry__2">长按 PowerOn 按键</td>
|
|||
|
|
<td class="- topic/entry entry colsep-1 rowsep-1" headers="rtc_key_procedures__table_r1w_z5s_c1c__entry__3">SYS_POR</td>
|
|||
|
|
<td class="- topic/entry entry colsep-0 rowsep-1" headers="rtc_key_procedures__table_r1w_z5s_c1c__entry__4">COLD</td>
|
|||
|
|
</tr>
|
|||
|
|
<tr class="- topic/row">
|
|||
|
|
<td class="- topic/entry entry colsep-1 rowsep-1" headers="rtc_key_procedures__table_r1w_z5s_c1c__entry__2">shell 中执行 poweroff 命令</td>
|
|||
|
|
<td class="- topic/entry entry colsep-1 rowsep-1" headers="rtc_key_procedures__table_r1w_z5s_c1c__entry__3">SYS_POR</td>
|
|||
|
|
<td class="- topic/entry entry colsep-0 rowsep-1" headers="rtc_key_procedures__table_r1w_z5s_c1c__entry__4">CMD_SHUTDOWN</td>
|
|||
|
|
</tr>
|
|||
|
|
<tr class="- topic/row">
|
|||
|
|
<td class="- topic/entry entry colsep-1 rowsep-1" headers="rtc_key_procedures__table_r1w_z5s_c1c__entry__2">进入深度休眠状态</td>
|
|||
|
|
<td class="- topic/entry entry colsep-1 rowsep-1" headers="rtc_key_procedures__table_r1w_z5s_c1c__entry__3">SYS_POR</td>
|
|||
|
|
<td class="- topic/entry entry colsep-0 rowsep-1" headers="rtc_key_procedures__table_r1w_z5s_c1c__entry__4">SUSPEND</td>
|
|||
|
|
</tr>
|
|||
|
|
<tr class="- topic/row">
|
|||
|
|
<td class="- topic/entry entry colsep-1 rowsep-0" headers="rtc_key_procedures__table_r1w_z5s_c1c__entry__1" rowspan="8">
|
|||
|
|
<p class="- topic/p p" data-ofbid="d106811e298__20250123155209">异常重启</p>
|
|||
|
|
</td>
|
|||
|
|
<td class="- topic/entry entry colsep-1 rowsep-1" headers="rtc_key_procedures__table_r1w_z5s_c1c__entry__2">过温保护</td>
|
|||
|
|
<td class="- topic/entry entry colsep-1 rowsep-1" headers="rtc_key_procedures__table_r1w_z5s_c1c__entry__3">OTP</td>
|
|||
|
|
<td class="- topic/entry entry colsep-0 rowsep-1" headers="rtc_key_procedures__table_r1w_z5s_c1c__entry__4">COLD</td>
|
|||
|
|
</tr>
|
|||
|
|
<tr class="- topic/row">
|
|||
|
|
<td class="- topic/entry entry colsep-1 rowsep-1" headers="rtc_key_procedures__table_r1w_z5s_c1c__entry__2">通过 Jtag 执行 reset 命令</td>
|
|||
|
|
<td class="- topic/entry entry colsep-1 rowsep-1" headers="rtc_key_procedures__table_r1w_z5s_c1c__entry__3">DM_RST</td>
|
|||
|
|
<td class="- topic/entry entry colsep-0 rowsep-1" headers="rtc_key_procedures__table_r1w_z5s_c1c__entry__4">COLD</td>
|
|||
|
|
</tr>
|
|||
|
|
<tr class="- topic/row">
|
|||
|
|
<td class="- topic/entry entry colsep-1 rowsep-1" headers="rtc_key_procedures__table_r1w_z5s_c1c__entry__2">RTC 模块断电</td>
|
|||
|
|
<td class="- topic/entry entry colsep-1 rowsep-1" headers="rtc_key_procedures__table_r1w_z5s_c1c__entry__3">RTC_POR</td>
|
|||
|
|
<td class="- topic/entry entry colsep-0 rowsep-1" headers="rtc_key_procedures__table_r1w_z5s_c1c__entry__4">COLD</td>
|
|||
|
|
</tr>
|
|||
|
|
<tr class="- topic/row">
|
|||
|
|
<td class="- topic/entry entry colsep-1 rowsep-1" headers="rtc_key_procedures__table_r1w_z5s_c1c__entry__2">内核中发生 SW Lock</td>
|
|||
|
|
<td class="- topic/entry entry colsep-1 rowsep-1" headers="rtc_key_procedures__table_r1w_z5s_c1c__entry__3">WDOG_RST</td>
|
|||
|
|
<td class="- topic/entry entry colsep-0 rowsep-1" headers="rtc_key_procedures__table_r1w_z5s_c1c__entry__4">SW_LOCKUP</td>
|
|||
|
|
</tr>
|
|||
|
|
<tr class="- topic/row">
|
|||
|
|
<td class="- topic/entry entry colsep-1 rowsep-1" headers="rtc_key_procedures__table_r1w_z5s_c1c__entry__2">内核中发生 HW Lock</td>
|
|||
|
|
<td class="- topic/entry entry colsep-1 rowsep-1" headers="rtc_key_procedures__table_r1w_z5s_c1c__entry__3">WDOG_RST</td>
|
|||
|
|
<td class="- topic/entry entry colsep-0 rowsep-1" headers="rtc_key_procedures__table_r1w_z5s_c1c__entry__4">HW_LOCKUP</td>
|
|||
|
|
</tr>
|
|||
|
|
<tr class="- topic/row">
|
|||
|
|
<td class="- topic/entry entry colsep-1 rowsep-1" headers="rtc_key_procedures__table_r1w_z5s_c1c__entry__2">内核中发生 Panic</td>
|
|||
|
|
<td class="- topic/entry entry colsep-1 rowsep-1" headers="rtc_key_procedures__table_r1w_z5s_c1c__entry__3">WDOG_RST</td>
|
|||
|
|
<td class="- topic/entry entry colsep-0 rowsep-1" headers="rtc_key_procedures__table_r1w_z5s_c1c__entry__4">PANIC</td>
|
|||
|
|
</tr>
|
|||
|
|
<tr class="- topic/row">
|
|||
|
|
<td class="- topic/entry entry colsep-1 rowsep-1" headers="rtc_key_procedures__table_r1w_z5s_c1c__entry__2">内核中触发进入 Ramdump</td>
|
|||
|
|
<td class="- topic/entry entry colsep-1 rowsep-1" headers="rtc_key_procedures__table_r1w_z5s_c1c__entry__3">WDOG_RST</td>
|
|||
|
|
<td class="- topic/entry entry colsep-0 rowsep-1" headers="rtc_key_procedures__table_r1w_z5s_c1c__entry__4">RAMDUMP</td>
|
|||
|
|
</tr>
|
|||
|
|
<tr class="- topic/row">
|
|||
|
|
<td class="- topic/entry entry colsep-1 rowsep-0" headers="rtc_key_procedures__table_r1w_z5s_c1c__entry__2">电源电压不稳定</td>
|
|||
|
|
<td class="- topic/entry entry colsep-1 rowsep-0" headers="rtc_key_procedures__table_r1w_z5s_c1c__entry__3">CMP_RST</td>
|
|||
|
|
<td class="- topic/entry entry colsep-0 rowsep-0" headers="rtc_key_procedures__table_r1w_z5s_c1c__entry__4">COLD</td>
|
|||
|
|
</tr>
|
|||
|
|
</tbody></table></div>
|
|||
|
|
<div class="- topic/note note note note_note" id="rtc_key_procedures__note_drb_1vs_c1c" data-ofbid="rtc_key_procedures__note_drb_1vs_c1c"><span class="note__title">注：</span> <div class="note__body">
|
|||
|
|
<p class="- topic/p p" data-ofbid="d106811e402__20250123155209">其中<span class="+ topic/ph ui-d/uicontrol ph uicontrol">按 Reset 按键</span>的情况，因为软件来不及设置 BAK，所以是初始值 0 （COLD）。</p>
|
|||
|
|
</div></div>
|
|||
|
|
</section>
|
|||
|
|
</div>
|
|||
|
|
</article></main></div>
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
</div>
|
|||
|
|
|
|||
|
|
<nav role="navigation" id="wh_topic_toc" aria-label="On this page" class="col-lg-2 d-none d-lg-block navbar d-print-none">
|
|||
|
|
<div id="wh_topic_toc_content">
|
|||
|
|
|
|||
|
|
<div class=" wh_topic_toc "><div class="wh_topic_label">在本页上</div><ul><li class="section-item"><div class="section-title"><a href="#rtc_key_procedures__section_e1w_z5s_c1c" data-tocid="rtc_key_procedures__section_e1w_z5s_c1c">初始化流程</a></div></li><li class="section-item"><div class="section-title"><a href="#rtc_key_procedures__section_h1w_z5s_c1c" data-tocid="rtc_key_procedures__section_h1w_z5s_c1c">校准算法设计</a></div></li><li class="section-item"><div class="section-title"><a href="#rtc_key_procedures__section_k1w_z5s_c1c" data-tocid="rtc_key_procedures__section_k1w_z5s_c1c">系统状态的备份功能</a></div></li><li class="section-item"><div class="section-title"><a href="#rtc_key_procedures__section_l1w_z5s_c1c" data-tocid="rtc_key_procedures__section_l1w_z5s_c1c">Reboot Reason 的设计</a></div></li></ul></div>
|
|||
|
|
|
|||
|
|
</div>
|
|||
|
|
</nav>
|
|||
|
|
|
|||
|
|
</div>
|
|||
|
|
</div>
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
</div>
|
|||
|
|
<footer class="navbar navbar-default wh_footer">
|
|||
|
|
<div class=" footer-container mx-auto ">
|
|||
|
|
<title>footer def</title>
|
|||
|
|
<style><!--
|
|||
|
|
|
|||
|
|
.p1 {
|
|||
|
|
font-family: FangZhengShuSong, Times, serif;
|
|||
|
|
}
|
|||
|
|
.p2 {
|
|||
|
|
font-family: Arial, Helvetica, sans-serif;
|
|||
|
|
}
|
|||
|
|
.p3 {
|
|||
|
|
font-family: "Lucida Console", "Courier New", monospace;
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
--></style>
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
<div class="webhelp.fragment.footer">
|
|||
|
|
<p class="p1">Copyright © 2019-2024 广东匠芯创科技有限公司. All rights reserved.</p>
|
|||
|
|
</div><div>
|
|||
|
|
<div class="generation_time">
|
|||
|
|
Update Time: 2025-01-23
|
|||
|
|
</div>
|
|||
|
|
</div>
|
|||
|
|
</div>
|
|||
|
|
</footer>
|
|||
|
|
|
|||
|
|
<button id="go2top" class="d-print-none" title="返回顶部">
|
|||
|
|
<span class="oxy-icon oxy-icon-up"></span>
|
|||
|
|
</button>
|
|||
|
|
|
|||
|
|
<div id="modal_img_large" class="modal">
|
|||
|
|
<span class="close oxy-icon oxy-icon-remove"></span>
|
|||
|
|
<div id="modal_img_container"></div>
|
|||
|
|
<div id="caption"></div>
|
|||
|
|
</div>
|
|||
|
|
|
|||
|
|
|
|||
|
|
<script src="${pd}/publishing/publishing-styles-AIC-template/js/custom.js" defer="defer"></script>
|
|||
|
|
|
|||
|
|
|
|||
|
|
</body>
|
|||
|
|
</html>
|