263 lines
36 KiB
HTML
263 lines
36 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="测试环境 硬件 测试板：带有两个 C 接口的测试板 PC：用于和测试板交互 串口线：连接测试板的调试串口 软件 PC 端串口终端软件 i2c-tools 第三方软件包 测试配置 将测试板的两个 C，一个配置为 master，一个配置为 slave。两个 C 接口对接。 编译第三方测试工具 tools，利用 tools 提供的工具进行测试。 i2c-tools 测试： i2cdetect ..."/><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/i2c/i2c_user_guide.html"/><meta name="DC.relation" content="../../../topics/sdk/i2c/i2c_debug.html"/><meta name="DC.relation" content="../../../topics/sdk/i2c/i2c_design.html"/><meta name="DC.contributor" content="yan.wang"/><meta name="DC.contributor" content="yan.wang"/><meta name="DC.date.modified" content="2024-01-15"/><meta name="DC.format" content="HTML5"/><meta name="DC.identifier" content="i2c_test_guide"/><meta name="DC.language" content="zh-CN"/><title>测试指南</title><!-- Generated with build number 2024112209. --><meta name="wh-path2root" content="../../../"/><meta name="wh-toc-id" content="i2c_test_guide-d4445e6330"/><meta name="wh-source-relpath" content="topics/sdk/i2c/i2c_test.dita"/><meta name="wh-out-relpath" content="topics/sdk/i2c/i2c_test.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="i2c_test_guide" 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="concept_nww_hzh_pzb"><div class="title"><a href="../../../topics/chapter-title/chapter-interface-sdk.html">接口</a><div class="wh-tooltip"><p class="shortdesc">CAN、CIR、GPAI、GPIO、I2C、PSADC、PWM 等接口模块的介绍和使用说明。</p></div></div></div></li><li><div class="topicref" data-id="i2c_user_guide"><div class="title"><a href="../../../topics/sdk/i2c/i2c_user_guide.html">I2C 使用指南</a></div></div></li><li class="active"><div class="topicref" data-id="i2c_test_guide"><div class="title"><a href="../../../topics/sdk/i2c/i2c_test.html">测试指南</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/i2c/i2c_debug.html" title="调试指南" aria-label="上一主题: 调试指南" rel="prev"></a></span>
|
|||
|
|
<span class="navnext"><a class="- topic/link link" href="../../../topics/sdk/i2c/i2c_design.html" title="设计说明" aria-label="下一主题: 设计说明" 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/i2c/i2c_test.dita">Edit online</a></span><h1 class="- topic/title title topictitle1" id="ariaid-title1">测试指南</h1>
|
|||
|
|
|
|||
|
|
<div class="date inPage">15 Jan 2024</div><div style="color: gray;">
|
|||
|
|
Read time: 2 minute(s)
|
|||
|
|
</div>
|
|||
|
|
<div class="- topic/body concept/conbody body conbody">
|
|||
|
|
<section class="- topic/section section" id="i2c_test_guide__section_dq5_ksn_4dc" data-ofbid="i2c_test_guide__section_dq5_ksn_4dc"><h2 class="- topic/title title sectiontitle">测试环境</h2>
|
|||
|
|
|
|||
|
|
<div class="- topic/p p" data-ofbid="d52066e38__20250123155201">
|
|||
|
|
<ul class="- topic/ul ul" id="i2c_test_guide__ul_qhd_f5r_21c" data-ofbid="i2c_test_guide__ul_qhd_f5r_21c">
|
|||
|
|
<li class="- topic/li li" data-ofbid="d52066e42__20250123155201"><strong class="+ topic/ph hi-d/b ph b">硬件</strong><ul class="- topic/ul ul" id="i2c_test_guide__ul_e3z_d5r_21c" data-ofbid="i2c_test_guide__ul_e3z_d5r_21c">
|
|||
|
|
<li class="- topic/li li" data-ofbid="d52066e47__20250123155201">
|
|||
|
|
<p class="- topic/p p" data-ofbid="d52066e49__20250123155201">测试板：带有两个 C 接口的测试板</p>
|
|||
|
|
</li>
|
|||
|
|
<li class="- topic/li li" data-ofbid="d52066e53__20250123155201">
|
|||
|
|
<p class="- topic/p p" data-ofbid="d52066e55__20250123155201">PC：用于和测试板交互</p>
|
|||
|
|
</li>
|
|||
|
|
<li class="- topic/li li" data-ofbid="d52066e59__20250123155201">
|
|||
|
|
<p class="- topic/p p" data-ofbid="d52066e61__20250123155201">串口线：连接测试板的调试串口</p>
|
|||
|
|
</li>
|
|||
|
|
</ul></li>
|
|||
|
|
<li class="- topic/li li" data-ofbid="d52066e66__20250123155201"><strong class="+ topic/ph hi-d/b ph b">软件</strong><ul class="- topic/ul ul" id="i2c_test_guide__ul_g3z_d5r_21c" data-ofbid="i2c_test_guide__ul_g3z_d5r_21c">
|
|||
|
|
<li class="- topic/li li" data-ofbid="d52066e71__20250123155201">
|
|||
|
|
<p class="- topic/p p" data-ofbid="d52066e73__20250123155201">PC 端串口终端软件</p>
|
|||
|
|
</li>
|
|||
|
|
<li class="- topic/li li" data-ofbid="d52066e77__20250123155201">
|
|||
|
|
<p class="- topic/p p" data-ofbid="d52066e79__20250123155201">i2c-tools 第三方软件包</p>
|
|||
|
|
</li>
|
|||
|
|
</ul></li>
|
|||
|
|
</ul>
|
|||
|
|
</div>
|
|||
|
|
</section>
|
|||
|
|
<section class="- topic/section section" id="i2c_test_guide__section_h3z_d5r_21c" data-ofbid="i2c_test_guide__section_h3z_d5r_21c"><h2 class="- topic/title title sectiontitle">测试配置</h2>
|
|||
|
|
|
|||
|
|
<p class="- topic/p p" data-ofbid="d52066e92__20250123155201">将测试板的两个 C，一个配置为 master，一个配置为 slave。两个 C 接口对接。 编译第三方测试工具 tools，利用 tools 提供的工具进行测试。</p>
|
|||
|
|
<div class="- topic/p p" data-ofbid="d52066e95__20250123155201">i2c-tools 测试：<ol class="- topic/ol ol" id="i2c_test_guide__ol_xgx_l5r_21c" data-ofbid="i2c_test_guide__ol_xgx_l5r_21c">
|
|||
|
|
<li class="- topic/li li" data-ofbid="d52066e99__20250123155201"><strong class="+ topic/ph hi-d/b ph b">i2cdetect</strong><p class="- topic/p p" data-ofbid="d52066e102__20250123155201">i2cdetect 用于测试系统中有哪些 C 总线，以及 C
|
|||
|
|
总线上有哪些地址被使用</p><p class="- topic/p p" data-ofbid="d52066e104__20250123155201"><strong class="+ topic/ph hi-d/b ph b">i2cdetect -l</strong> ：列出系统中所有的 C 总线</p><div class="- topic/p p" data-ofbid="d52066e108__20250123155201">
|
|||
|
|
<br/><div class="imagecenter"><img class="- topic/image image imagecenter" id="i2c_test_guide__image_j3z_d5r_21c" src="../../../images/i2c/i2c_detect_1.png" alt="i2cdetect_1"/></div><br/>
|
|||
|
|
</div><p class="- topic/p p" data-ofbid="d52066e116__20250123155201"><strong class="+ topic/ph hi-d/b ph b">i2cdetect -y -r 0</strong> ：查询 C-0 总线上哪些地址有挂接 I2C 设备。如下如所示，0x51 地址上有挂接
|
|||
|
|
C 设备</p><div class="- topic/p p" data-ofbid="d52066e120__20250123155201">
|
|||
|
|
<br/><div class="imagecenter"><img class="- topic/image image imagecenter" id="i2c_test_guide__image_k3z_d5r_21c" src="../../../images/i2c/i2c_detect_2.png" alt="i2cdetect_2"/></div><br/>
|
|||
|
|
</div></li>
|
|||
|
|
<li class="- topic/li li" data-ofbid="d52066e129__20250123155201"><strong class="+ topic/ph hi-d/b ph b">i2cset</strong><p class="- topic/p p" data-ofbid="d52066e132__20250123155201">i2cset 用于每次向 C 设备写一个字节的数据</p><p class="- topic/p p" data-ofbid="d52066e134__20250123155201"><strong class="+ topic/ph hi-d/b ph b">i2cset -f -y 0 0x54 1
|
|||
|
|
0x39</strong> ：I2C 从设备地址为 0x54，将从设备中地址 1 处的数据设置为 0x39</p><div class="- topic/p p" data-ofbid="d52066e138__20250123155201">
|
|||
|
|
<br/><div class="imagecenter"><img class="- topic/image image imagecenter" id="i2c_test_guide__image_m3z_d5r_21c" src="../../../images/i2c/i2c_set.png" alt="i2cset"/></div><br/>
|
|||
|
|
</div></li>
|
|||
|
|
<li class="- topic/li li" data-ofbid="d52066e147__20250123155201"><strong class="+ topic/ph hi-d/b ph b">i2cget</strong><p class="- topic/p p" data-ofbid="d52066e150__20250123155201">i2cget 用于每次从 C 设备读取一个字节的数据</p><p class="- topic/p p" data-ofbid="d52066e152__20250123155201"><strong class="+ topic/ph hi-d/b ph b">i2cget -f -y 0 0x54
|
|||
|
|
1</strong> ：I2C 从设备地址为 0x54，读取从设备数据地址为 1 处的 1 字节数据</p><div class="- topic/p p" data-ofbid="d52066e156__20250123155201">
|
|||
|
|
<br/><div class="imagecenter"><img class="- topic/image image imagecenter" id="i2c_test_guide__image_o3z_d5r_21c" src="../../../images/i2c/i2c_get.png" alt="i2cget"/></div><br/>
|
|||
|
|
</div></li>
|
|||
|
|
<li class="- topic/li li" data-ofbid="d52066e165__20250123155201"><strong class="+ topic/ph hi-d/b ph b">i2ctransfer</strong><p class="- topic/p p" data-ofbid="d52066e168__20250123155201">i2ctransfer 用于与 C
|
|||
|
|
设备之间传输数据，每次可读写多个数据</p><p class="- topic/p p" data-ofbid="d52066e170__20250123155201"><strong class="+ topic/ph hi-d/b ph b">i2ctransfer -f -y 0 w17@0x54 0 0x5a-</strong>
|
|||
|
|
：I2C 设备地址为 0x54，向从设备写入 16byte 数据，0 为将要写入数据的起始地址，写入的数据为
|
|||
|
|
0x5a，0x59，0x58…</p><div class="- topic/p p" data-ofbid="d52066e174__20250123155201">
|
|||
|
|
<br/><div class="imagecenter"><img class="- topic/image image imagecenter" id="i2c_test_guide__image_q3z_d5r_21c" src="../../../images/i2c/i2c_transfer_1.png" alt="i2ctransfer_1"/></div><br/>
|
|||
|
|
</div><p class="- topic/p p" data-ofbid="d52066e182__20250123155201"><strong class="+ topic/ph hi-d/b ph b">i2ctransfer -f -y 0 w1@0x54 0 r16</strong> ：I2C 设备地址为 0x54，从 C 设备读取
|
|||
|
|
16byte 数据，读数据的起始地址为 0</p><div class="- topic/p p" data-ofbid="d52066e186__20250123155201">
|
|||
|
|
<br/><div class="imagecenter"><img class="- topic/image image imagecenter" id="i2c_test_guide__image_r3z_d5r_21c" src="../../../images/i2c/i2c_transfer_2.png" alt="i2ctransfer_2"/></div><br/>
|
|||
|
|
</div></li>
|
|||
|
|
<li class="- topic/li li" data-ofbid="d52066e195__20250123155201"><strong class="+ topic/ph hi-d/b ph b">eeprog</strong><p class="- topic/p p" data-ofbid="d52066e198__20250123155201">eeprog 是读写 eeprom 的工具，每次读写的 message 只有一个字节。若要读写 8 个字节，则会分成 8
|
|||
|
|
个 message 进行读写</p><p class="- topic/p p" data-ofbid="d52066e200__20250123155201"><strong class="+ topic/ph hi-d/b ph b">eeprog -f /dev/i2c-0 0x51 -r 0:8 -16</strong> ：I2C
|
|||
|
|
设备地址为 0x51，读取的数据起始地址是 0，读取 8byte 数据，-16 表示 C 设备的数据地址需要 16bit
|
|||
|
|
表示</p><p class="- topic/p p" data-ofbid="d52066e204__20250123155201"><strong class="+ topic/ph hi-d/b ph b">date | eeprog /dev/i2c-0 0x51 -w 0x200 -16</strong> ：将 date
|
|||
|
|
命令返回的数据写入到 eeprom 中，写入的起始地址是 0x200</p><div class="- topic/note note note note_note" id="i2c_test_guide__note_rnz_w5r_21c" data-ofbid="i2c_test_guide__note_rnz_w5r_21c"><span class="note__title">注：</span> <div class="note__body">
|
|||
|
|
<p class="- topic/p p" data-ofbid="d52066e210__20250123155201">i2c-tools 默认是不支持 eeprog 的编译的，并且使用 eeprog 时需要确保被操作的 eeprom 没有通过 DTS
|
|||
|
|
挂载到 I2C 总线，否则会一直返回该 eeprom 处于 busy 状态。</p>
|
|||
|
|
</div></div></li>
|
|||
|
|
</ol></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="#i2c_test_guide__section_dq5_ksn_4dc" data-tocid="i2c_test_guide__section_dq5_ksn_4dc">测试环境</a></div></li><li class="section-item"><div class="section-title"><a href="#i2c_test_guide__section_h3z_d5r_21c" data-tocid="i2c_test_guide__section_h3z_d5r_21c">测试配置</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>
|