mirror of
https://gitee.com/Vancouver2017/luban-lite.git
synced 2025-12-17 01:28:54 +00:00
279 lines
41 KiB
HTML
Executable File
279 lines
41 KiB
HTML
Executable File
<!DOCTYPE html><html xmlns="http://www.w3.org/1999/xhtml" xml:lang="zh-cn" lang="zh-cn" data-whc_version="26.1">
|
||
<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="硬件结构原理 图 1 . RTP 硬件结构侧视图 如图所示，RTP 硬件分为下列多层结构： 表面硬图层：手指触摸的表面是一个硬涂层，用以保护下面的 PET 层。 PET 层：很薄、有弹性，当表面被触摸时它会向下弯曲，并使得下面的两层 ITO 涂层能够相互接触并在该点连通电路。 ITO 陶瓷层：两个 ITO 层之间是约千分之一英寸厚的一些隔离支点使两层分开。 ..."/><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/rtp/rtp_user_guide.html"/><meta name="DC.relation" content="../../../topics/sdk/rtp/rtp_user_guide.html"/><meta name="DC.relation" content="../../../topics/sdk/rtp/rtp_config_lite.html"/><meta name="DC.contributor" content="yan.wang"/><meta name="DC.creator" content="yan.wang"/><meta name="DC.date.modified" content="2025-04-09"/><meta name="DC.format" content="HTML5"/><meta name="DC.identifier" content="rtp_working_logic"/><meta name="DC.language" content="zh-CN"/><title>工作原理</title><meta name="wh-path2root" content="../../../"/><meta name="wh-toc-id" content="rtp_working_logic-d3703e6267"/><meta name="wh-source-relpath" content="topics/sdk/rtp/rtp_working_logic.dita"/><meta name="wh-out-relpath" content="topics/sdk/rtp/rtp_working_logic.html"/>
|
||
|
||
<link rel="stylesheet" type="text/css" href="../../../webhelp/app/commons.css?buildId=2024041900"/>
|
||
<link rel="stylesheet" type="text/css" href="../../../webhelp/app/topic.css?buildId=2024041900"/>
|
||
|
||
<script src="../../../webhelp/app/options/properties.js?buildId=20250409170918"></script>
|
||
<script src="../../../webhelp/app/localization/strings.js?buildId=2024041900"></script>
|
||
<script src="../../../webhelp/app/search/index/keywords.js?buildId=20250409170918"></script>
|
||
<script defer="defer" src="../../../webhelp/app/commons.js?buildId=2024041900"></script>
|
||
<script defer="defer" src="../../../webhelp/app/topic.js?buildId=2024041900"></script>
|
||
<link rel="stylesheet" type="text/css" href="../../../webhelp/template/css/aic-styles-web-internal.css?buildId=2024041900"/><link rel="stylesheet" type="text/css" href="../../../webhelp/template/css/notes.css?buildId=2024041900"/><link rel="stylesheet" type="text/css" href="../../../webhelp/template/css/aic-common.css?buildId=2024041900"/><link rel="stylesheet" type="text/css" href="../../../webhelp/template/css/aic-images.css?buildId=2024041900"/><link rel="stylesheet" type="text/css" href="../../../webhelp/template/css/footnote.css?buildId=2024041900"/><link rel="stylesheet" type="text/css" href="../../../webhelp/template/css/aic-highlight-changes.css?buildId=2024041900"/><link rel="stylesheet" type="text/css" href="../../../webhelp/template/css/search-in-header.css?buildId=2024041900"/><link rel="stylesheet" type="text/css" href="../../../webhelp/template/css/topic-body-list.css?buildId=2024041900"/></head>
|
||
|
||
<body id="rtp_working_logic" 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 xmlns:whc="http://www.oxygenxml.com/webhelp/components" 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="https://www.artinchip.com" class=" wh_logo d-none d-sm-block "><img src="../../../company-logo.png" alt=" RTOS 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">RTOS 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 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>
|
||
</div>
|
||
</header>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<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<span class="ph">、CAP</span>、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="rtp-user-guide"><div class="title"><a href="../../../topics/sdk/rtp/rtp_user_guide.html">RTP 使用指南</a></div></div></li><li class="active"><div class="topicref" data-id="rtp_working_logic"><div class="title"><a href="../../../topics/sdk/rtp/rtp_working_logic.html">工作原理</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/rtp/rtp_user_guide.html" title="RTP 使用指南" aria-label="上一主题: RTP 使用指南" rel="prev"></a></span>
|
||
<span class="navnext"><a class="- topic/link link" href="../../../topics/sdk/rtp/rtp_config_lite.html" title="参数配置" aria-label="下一主题: 参数配置" 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-d3703e457" 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_rtos.html" id="revinfo_linux-d3703e457-link">修订记录</a></div></div></li><li role="treeitem" aria-expanded="false"><div data-tocid="id-d3703e479" class="topicref" data-id="id" data-state="not-ready"><span role="button" tabindex="0" aria-labelledby="button-expand-action id-d3703e479-link" class="wh-expand-btn"></span><div class="title"><a href="../../../topics/sdk/env/sdk-compile.html" id="id-d3703e479-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="id-d3703e601" class="topicref" data-id="id" data-state="not-ready"><span role="button" tabindex="0" aria-labelledby="button-expand-action id-d3703e601-link" class="wh-expand-btn"></span><div class="title"><a href="../../../topics/sdk/advanced/sdk-usage.html" id="id-d3703e601-link">使用指南</a><div class="wh-tooltip"><p class="shortdesc">命令详解，编译选项，镜像和分区配置，添加应用和驱动等的详细使用说明。</p></div></div></div></li><li role="treeitem" aria-expanded="false"><div data-tocid="concept_rcx_czh_pzb-d3703e1001" 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-d3703e1001-link" class="wh-expand-btn"></span><div class="title"><a href="../../../topics/sdk/chapter-app.html" id="concept_rcx_czh_pzb-d3703e1001-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-d3703e1841" class="topicref" data-id="id" data-state="not-ready"><span role="button" tabindex="0" aria-labelledby="button-expand-action id-d3703e1841-link" class="wh-expand-btn"></span><div class="title"><a href="../../../topics/sdk/peripheral/peripheral-intro.html" id="id-d3703e1841-link">外设移植</a><div class="wh-tooltip"><p class="shortdesc"><span class="ph">CTP、U 盘、SD 卡、有线和无线网络</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-d3703e2015" class="topicref" data-id="id" data-state="not-ready"><span role="button" tabindex="0" aria-labelledby="button-expand-action id-d3703e2015-link" class="wh-expand-btn"></span><div class="title"><a href="../../../topics/sdk/bringup/chapter-bringup.html" id="id-d3703e2015-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-d3703e2355" class="topicref" data-id="id" data-state="expanded"><span role="button" tabindex="0" aria-labelledby="button-collapse-action id-d3703e2355-link" class="wh-expand-btn"></span><div class="title"><a href="../../../topics/sdk/chapter-advanced-app.html" id="id-d3703e2355-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="_0-d3703e2372" class="topicref" data-id="_0" data-state="not-ready"><span role="button" tabindex="0" aria-labelledby="button-expand-action _0-d3703e2372-link" class="wh-expand-btn"></span><div class="title"><a href="../../../topics/sdk/boot/lite_boot_direct.html" id="_0-d3703e2372-link">启动引导</a><div class="wh-tooltip"><p class="shortdesc">启动引导程序 Bootloader 可以实现加载启动应用程序、 烧录和升级功能。</p></div></div></div></li><li role="treeitem" aria-expanded="false"><div data-tocid="chapter-system-d3703e2556" class="topicref" data-id="chapter-system" data-state="not-ready"><span role="button" tabindex="0" aria-labelledby="button-expand-action chapter-system-d3703e2556-link" class="wh-expand-btn"></span><div class="title"><a href="../../../topics/chapter-title/chapter-system.html" id="chapter-system-d3703e2556-link">系统</a><div class="wh-tooltip"><p class="shortdesc"></p></div></div></div></li><li role="treeitem" aria-expanded="false"><div data-tocid="chapter-memory-d3703e3646" class="topicref" data-id="chapter-memory" data-state="not-ready"><span role="button" tabindex="0" aria-labelledby="button-expand-action chapter-memory-d3703e3646-link" class="wh-expand-btn"></span><div class="title"><a href="../../../topics/chapter-title/chapter-memory-sdk.html" id="chapter-memory-d3703e3646-link">存储</a><div class="wh-tooltip"><p class="shortdesc">SDMC、<span class="ph">PSRAM、</span>SPI NAND、SPI NOR 等存储模块的介绍和使用说明。</p></div></div></div></li><li role="treeitem" aria-expanded="false"><div data-tocid="concept_mcc_32s_nbc-d3703e3980" class="topicref" data-id="concept_mcc_32s_nbc" data-state="not-ready"><span role="button" tabindex="0" aria-labelledby="button-expand-action concept_mcc_32s_nbc-d3703e3980-link" class="wh-expand-btn"></span><div class="title"><a href="../../../topics/chapter-title/chapter-multi-media-sdk.html" id="concept_mcc_32s_nbc-d3703e3980-link">多媒体</a><div class="wh-tooltip"><p class="shortdesc">GE、VE、Display、DVP、MPP、MPP 播放器等多媒体模块的介绍和使用说明。</p></div></div></div></li><li role="treeitem" aria-expanded="true"><div data-tocid="concept_nww_hzh_pzb-d3703e5421" class="topicref" data-id="concept_nww_hzh_pzb" data-state="expanded"><span role="button" tabindex="0" aria-labelledby="button-collapse-action concept_nww_hzh_pzb-d3703e5421-link" class="wh-expand-btn"></span><div class="title"><a href="../../../topics/chapter-title/chapter-interface-sdk.html" id="concept_nww_hzh_pzb-d3703e5421-link">接口</a><div class="wh-tooltip"><p class="shortdesc">CAN<span class="ph">、CAP</span>、CIR、GPAI、GPIO、I2C、PSADC、PWM 等接口模块的介绍和使用说明。</p></div></div></div><ul role="group" class="navbar-nav nav-list"><li role="treeitem" aria-expanded="false"><div data-tocid="can-d3703e5441" class="topicref" data-id="can" data-state="not-ready"><span role="button" tabindex="0" aria-labelledby="button-expand-action can-d3703e5441-link" class="wh-expand-btn"></span><div class="title"><a href="../../../topics/sdk/can/can_user_guide.html" id="can-d3703e5441-link">CAN 使用指南</a></div></div></li><li role="treeitem" aria-expanded="false"><div data-tocid="id-d3703e5525" class="topicref" data-id="id" data-state="not-ready"><span role="button" tabindex="0" aria-labelledby="button-expand-action id-d3703e5525-link" class="wh-expand-btn"></span><div class="title"><a href="../../../topics/sdk/cap/cap_user_guide.html" id="id-d3703e5525-link">CAP 使用指南</a></div></div></li><li role="treeitem" aria-expanded="false"><div data-tocid="id-d3703e5595" class="topicref" data-id="id" data-state="not-ready"><span role="button" tabindex="0" aria-labelledby="button-expand-action id-d3703e5595-link" class="wh-expand-btn"></span><div class="title"><a href="../../../topics/sdk/qep/qep_user_guide.html" id="id-d3703e5595-link">QEP 使用指南</a></div></div></li><li role="treeitem" aria-expanded="false"><div data-tocid="cir-d3703e5679" class="topicref" data-id="cir" data-state="not-ready"><span role="button" tabindex="0" aria-labelledby="button-expand-action cir-d3703e5679-link" class="wh-expand-btn"></span><div class="title"><a href="../../../topics/sdk/cir/cir_user_guide.html" id="cir-d3703e5679-link">CIR 使用指南</a></div></div></li><li role="treeitem" aria-expanded="false"><div data-tocid="gpai-user-guide-d3703e5805" class="topicref" data-id="gpai-user-guide" data-state="not-ready"><span role="button" tabindex="0" aria-labelledby="button-expand-action gpai-user-guide-d3703e5805-link" class="wh-expand-btn"></span><div class="title"><a href="../../../topics/sdk/gpai/gpai_user_guide.html" id="gpai-user-guide-d3703e5805-link">GPAI 使用指南</a></div></div></li><li role="treeitem" aria-expanded="false"><div data-tocid="id-d3703e5889" class="topicref" data-id="id" data-state="not-ready"><span role="button" tabindex="0" aria-labelledby="button-expand-action id-d3703e5889-link" class="wh-expand-btn"></span><div class="title"><a href="../../../topics/sdk/gpio/gpio_user_guide.html" id="id-d3703e5889-link">GPIO 使用指南</a></div></div></li><li role="treeitem" aria-expanded="false"><div data-tocid="i2c_user_guide-d3703e5973" class="topicref" data-id="i2c_user_guide" data-state="not-ready"><span role="button" tabindex="0" aria-labelledby="button-expand-action i2c_user_guide-d3703e5973-link" class="wh-expand-btn"></span><div class="title"><a href="../../../topics/sdk/i2c/i2c_user_guide.html" id="i2c_user_guide-d3703e5973-link">I2C 使用指南</a></div></div></li><li role="treeitem" aria-expanded="false"><div data-tocid="id-d3703e6085" class="topicref" data-id="id" data-state="not-ready"><span role="button" tabindex="0" aria-labelledby="button-expand-action id-d3703e6085-link" class="wh-expand-btn"></span><div class="title"><a href="../../../topics/sdk/psadc/psadc_user_guide.html" id="id-d3703e6085-link">PSADC 使用指南</a></div></div></li><li role="treeitem" aria-expanded="false"><div data-tocid="id-d3703e6169" class="topicref" data-id="id" data-state="not-ready"><span role="button" tabindex="0" aria-labelledby="button-expand-action id-d3703e6169-link" class="wh-expand-btn"></span><div class="title"><a href="../../../topics/sdk/pwm/pwm_user_guide.html" id="id-d3703e6169-link">PWM 使用指南</a></div></div></li><li role="treeitem" aria-expanded="true"><div data-tocid="rtp-user-guide-d3703e6253" class="topicref" data-id="rtp-user-guide" data-state="expanded"><span role="button" tabindex="0" aria-labelledby="button-collapse-action rtp-user-guide-d3703e6253-link" class="wh-expand-btn"></span><div class="title"><a href="../../../topics/sdk/rtp/rtp_user_guide.html" id="rtp-user-guide-d3703e6253-link">RTP 使用指南</a></div></div><ul role="group" class="navbar-nav nav-list"><li role="treeitem" class="active"><div data-tocid="rtp_working_logic-d3703e6267" class="topicref" data-id="rtp_working_logic" data-state="leaf"><span role="button" class="wh-expand-btn"></span><div class="title"><a href="../../../topics/sdk/rtp/rtp_working_logic.html" id="rtp_working_logic-d3703e6267-link">工作原理</a></div></div></li><li role="treeitem"><div data-tocid="id-d3703e6281" class="topicref" data-id="id" data-state="leaf"><span role="button" class="wh-expand-btn"></span><div class="title"><a href="../../../topics/sdk/rtp/rtp_config_lite.html" id="id-d3703e6281-link">参数配置</a></div></div></li><li role="treeitem"><div data-tocid="id-d3703e6295" class="topicref" data-id="id" data-state="leaf"><span role="button" class="wh-expand-btn"></span><div class="title"><a href="../../../topics/sdk/rtp/rtp_debug_lite.html" id="id-d3703e6295-link">调试指南</a></div></div></li><li role="treeitem"><div data-tocid="id-d3703e6309" class="topicref" data-id="id" data-state="leaf"><span role="button" class="wh-expand-btn"></span><div class="title"><a href="../../../topics/sdk/rtp/rtp_test_lite.html" id="id-d3703e6309-link">测试指南</a></div></div></li><li role="treeitem"><div data-tocid="id-d3703e6323" class="topicref" data-id="id" data-state="leaf"><span role="button" class="wh-expand-btn"></span><div class="title"><a href="../../../topics/sdk/rtp/rtp_design_lite.html" id="id-d3703e6323-link">设计说明</a></div></div></li><li role="treeitem"><div data-tocid="rtp_common_issues-d3703e6337" class="topicref" data-id="rtp_common_issues" data-state="leaf"><span role="button" class="wh-expand-btn"></span><div class="title"><a href="../../../topics/sdk/rtp/rtp_faq.html" id="rtp_common_issues-d3703e6337-link">常见问题</a></div></div></li></ul></li><li role="treeitem" aria-expanded="false"><div data-tocid="spi-d3703e6352" class="topicref" data-id="spi" data-state="not-ready"><span role="button" tabindex="0" aria-labelledby="button-expand-action spi-d3703e6352-link" class="wh-expand-btn"></span><div class="title"><a href="../../../topics/sdk/spi/spi_user_guide.html" id="spi-d3703e6352-link"><span class="ph">Q</span>SPI 使用指南</a></div></div></li><li role="treeitem" aria-expanded="false"><div data-tocid="uart_user_guide-d3703e6438" class="topicref" data-id="uart_user_guide" data-state="not-ready"><span role="button" tabindex="0" aria-labelledby="button-expand-action uart_user_guide-d3703e6438-link" class="wh-expand-btn"></span><div class="title"><a href="../../../topics/sdk/uart/uart_user_guide.html" id="uart_user_guide-d3703e6438-link">UART 使用指南</a></div></div></li><li role="treeitem" aria-expanded="false"><div data-tocid="usb_user_guide-d3703e6522" class="topicref" data-id="usb_user_guide" data-state="not-ready"><span role="button" tabindex="0" aria-labelledby="button-expand-action usb_user_guide-d3703e6522-link" class="wh-expand-btn"></span><div class="title"><a href="../../../topics/sdk/usb/usb_user_guide.html" id="usb_user_guide-d3703e6522-link">USB 使用指南</a></div></div></li><li role="treeitem" aria-expanded="false"><div data-tocid="id-d3703e6592" class="topicref" data-id="id" data-state="not-ready"><span role="button" tabindex="0" aria-labelledby="button-expand-action id-d3703e6592-link" class="wh-expand-btn"></span><div class="title"><a href="../../../topics/sdk/mac/mac_user_guide.html" id="id-d3703e6592-link">MAC 使用指南</a></div></div></li></ul></li><li role="treeitem" aria-expanded="false"><div data-tocid="chapter-safety-d3703e6676" class="topicref" data-id="chapter-safety" data-state="not-ready"><span role="button" tabindex="0" aria-labelledby="button-expand-action chapter-safety-d3703e6676-link" class="wh-expand-btn"></span><div class="title"><a href="../../../topics/chapter-title/chapter-safety-sdk.html" id="chapter-safety-d3703e6676-link">安全</a><div class="wh-tooltip"><p class="shortdesc">SPI ENC、CE、eFuse 等安全模块的介绍和使用说明。</p></div></div></div></li></ul></li></ul></div>
|
||
|
||
</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" href="http://aicdocco/taskstopics/sdk/rtp/rtp_working_logic.dita">Edit online</a></span><h1 class="- topic/title title topictitle1" id="ariaid-title1">工作原理</h1>
|
||
|
||
<div class="date inPage">9 Apr 2025</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="rtp_working_logic__section_dwc_lry_21c" data-ofbid="rtp_working_logic__section_dwc_lry_21c"><h2 class="- topic/title title sectiontitle">硬件结构原理</h2>
|
||
|
||
<figure class="- topic/fig fig fignone" id="rtp_working_logic__fig_v5m_zry_21c" data-ofbid="rtp_working_logic__fig_v5m_zry_21c">
|
||
|
||
<br/><div class="imagecenter"><img class="- topic/image image imagecenter" id="rtp_working_logic__image_ewc_lry_21c" src="../../../images/rtp/rtp_hw_structure.png" width="288" alt="hw_structure"/></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">RTP 硬件结构侧视图</span></figcaption></figure>
|
||
<p class="- topic/p p" data-ofbid="d60860e50__20250409171035">如图所示，RTP 硬件分为下列多层结构：</p>
|
||
<ul class="- topic/ul ul" id="rtp_working_logic__ul_fwc_lry_21c" data-ofbid="rtp_working_logic__ul_fwc_lry_21c">
|
||
<li class="- topic/li li" data-ofbid="d60860e55__20250409171035">
|
||
<p class="- topic/p p" data-ofbid="d60860e57__20250409171035">表面硬图层：手指触摸的表面是一个硬涂层，用以保护下面的 PET 层。</p>
|
||
</li>
|
||
<li class="- topic/li li" data-ofbid="d60860e61__20250409171035">
|
||
<p class="- topic/p p" data-ofbid="d60860e63__20250409171035">PET 层：很薄、有弹性，当表面被触摸时它会向下弯曲，并使得下面的两层 ITO 涂层能够相互接触并在该点连通电路。</p>
|
||
</li>
|
||
<li class="- topic/li li" data-ofbid="d60860e67__20250409171035">
|
||
<p class="- topic/p p" data-ofbid="d60860e69__20250409171035">ITO 陶瓷层：两个 ITO 层之间是约千分之一英寸厚的一些隔离支点使两层分开。</p>
|
||
</li>
|
||
<li class="- topic/li li" data-ofbid="d60860e73__20250409171035">
|
||
<p class="- topic/p p" data-ofbid="d60860e75__20250409171035">玻璃底层：最下面是一个透明的硬底层用来支撑上面的结构，通常也可以用塑料。</p>
|
||
</li>
|
||
</ul>
|
||
<p class="- topic/p p" data-ofbid="d60860e80__20250409171035">RTP 多层结构会导致较大的光损失，手持设备通常需要加大背光源来弥补透光性不好的问题，从而增加电池的消耗。</p>
|
||
</section>
|
||
<section class="- topic/section section" id="rtp_working_logic__section_gwc_lry_21c" data-ofbid="rtp_working_logic__section_gwc_lry_21c"><h2 class="- topic/title title sectiontitle">坐标计算</h2>
|
||
|
||
<div class="- topic/p p" data-ofbid="d60860e89__20250409171035">ITO 陶瓷层分为上下两层，即 X 层和 Y 层，中间用隔离支点分开：<ul class="- topic/ul ul" id="rtp_working_logic__ul_iwc_lry_21c" data-ofbid="rtp_working_logic__ul_iwc_lry_21c">
|
||
<li class="- topic/li li" data-ofbid="d60860e93__20250409171035">
|
||
<p class="- topic/p p" data-ofbid="d60860e95__20250409171035">当有触摸按下时，触摸点的 X 层和 Y 层会导通。</p>
|
||
</li>
|
||
<li class="- topic/li li" data-ofbid="d60860e99__20250409171035">
|
||
<p class="- topic/p p" data-ofbid="d60860e101__20250409171035">当没有触摸按下时，X 层和 Y 层分离，无法测得电压。</p>
|
||
</li>
|
||
</ul></div>
|
||
<p class="- topic/p p" data-ofbid="d60860e106__20250409171035">X 层上 X- 到 X+ 和 Y- 到 Y+的电阻是均匀分布的，其电路等效图如下：</p>
|
||
<figure class="- topic/fig fig fignone" id="rtp_working_logic__fig_n4b_yry_21c" data-ofbid="rtp_working_logic__fig_n4b_yry_21c">
|
||
|
||
<br/><div class="imagecenter"><img class="- topic/image image imagecenter" id="rtp_working_logic__image_jwc_lry_21c" src="../../../images/rtp/xy_layer.png" alt="xy_layer1"/></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"> 2</span><span class="fig--title-label-punctuation">. </span></span><span class="fig--title">RTP 的 X 层、Y 层等效电路</span></figcaption></figure>
|
||
<ol class="- topic/ol ol" id="rtp_working_logic__ol_kwc_lry_21c" data-ofbid="rtp_working_logic__ol_kwc_lry_21c">
|
||
<li class="- topic/li li" data-ofbid="d60860e123__20250409171035">
|
||
<p class="- topic/p p" data-ofbid="d60860e125__20250409171035"><strong class="+ topic/ph hi-d/b ph b">计算 X 坐标</strong>：在 X+ 电极施加驱动电压 V， X- 电极接地，Y+ 做为引出端测量得到接触点的电压。</p>
|
||
<figure class="- topic/fig fig fignone" id="rtp_working_logic__fig_qww_vry_21c" data-ofbid="rtp_working_logic__fig_qww_vry_21c">
|
||
|
||
<br/><div class="imagecenter"><img class="- topic/image image imagecenter" id="rtp_working_logic__image_lwc_lry_21c" src="../../../images/rtp/x_coordinate.png" alt="x_coordinate1"/></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"> 3</span><span class="fig--title-label-punctuation">. </span></span><span class="fig--title">计算 X 坐标的关系图</span></figcaption></figure>
|
||
<div class="- topic/p p" data-ofbid="d60860e142__20250409171035">由于 ITO 层均匀导电，触点电压与 Vdrive 电压之比等于触点 X 坐标与屏宽度之比。<pre class="+ topic/pre pr-d/codeblock pre codeblock language-c" id="rtp_working_logic__pre_mwc_lry_21c" data-ofbid="rtp_working_logic__pre_mwc_lry_21c">x=(Vy/Vdrv)*width</pre></div>
|
||
</li>
|
||
<li class="- topic/li li" data-ofbid="d60860e148__20250409171035"><strong class="+ topic/ph hi-d/b ph b">计算 Y 坐标</strong>：在 Y+ 电极施加驱动电压 V，Y- 接地，芯片通过 X+ 测量接触点的电压。<figure class="- topic/fig fig fignone" id="rtp_working_logic__fig_m13_vry_21c" data-ofbid="rtp_working_logic__fig_m13_vry_21c">
|
||
|
||
<br/><div class="imagecenter"><img class="- topic/image image imagecenter" id="rtp_working_logic__image_owc_lry_21c" src="../../../images/rtp/y_coordinate.png" alt="y_coordinate1"/></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"> 4</span><span class="fig--title-label-punctuation">. </span></span><span class="fig--title">计算 Y 坐标的关系图</span></figcaption></figure><div class="- topic/p p" data-ofbid="d60860e163__20250409171035">由于 ITO 层均匀导电，触点电压与 V 电压之比等于触点 Y
|
||
坐标与屏高度之比。<pre class="+ topic/pre pr-d/codeblock pre codeblock language-c" id="rtp_working_logic__pre_pwc_lry_21c" data-ofbid="rtp_working_logic__pre_pwc_lry_21c">y/height=Vx/Vdrvy=(Vx/Vdrv)*height</pre></div></li>
|
||
</ol>
|
||
</section>
|
||
<section class="- topic/section section" id="rtp_working_logic__section_qwc_lry_21c" data-ofbid="rtp_working_logic__section_qwc_lry_21c"><h2 class="- topic/title title sectiontitle">坐标采样</h2>
|
||
|
||
<p class="- topic/p p" data-ofbid="d60860e175__20250409171035">基于以上原理，对 X+、X-、Y+、Y- 加不同的电信号，拉低、还是拉高，会得到多种组合，
|
||
常用的组合命名为：XN、XP、YN、YP、ZA、ZB、ZC、ZD，具体电信号定义见 spec。 可以简单理解为：X*、Y* 都是和位置有关的数据，Z*
|
||
是和压感有关的数据。</p>
|
||
</section>
|
||
<section class="- topic/section section" id="rtp_working_logic__section_rwc_lry_21c" data-ofbid="rtp_working_logic__section_rwc_lry_21c"><h2 class="- topic/title title sectiontitle">坐标校准</h2><div class="- topic/p p" data-ofbid="d60860e182__20250409171035">触摸屏和 LCD 屏需要结合在一起使用：<ul class="- topic/ul ul" id="rtp_working_logic__ul_mv3_vfs_sdc" data-ofbid="rtp_working_logic__ul_mv3_vfs_sdc">
|
||
<li class="- topic/li li" data-ofbid="d60860e186__20250409171035">
|
||
<p class="- topic/p p" data-ofbid="d60860e188__20250409171035">LCD 屏中运行的 GUI 需要获得一个转换后的坐标， 且坐标值必须在 LCD 屏分辨率的范围内。</p>
|
||
</li>
|
||
<li class="- topic/li li" data-ofbid="d60860e192__20250409171035">
|
||
<p class="- topic/p p" data-ofbid="d60860e194__20250409171035">从触摸屏坐标转换到 LCD 坐标的过程，会执行一次线性转换，通用公式如下：</p>
|
||
<div class="- topic/p p" data-ofbid="d60860e197__20250409171035">
|
||
<br/><div class="imagecenter"><img class="- topic/image image imagecenter" id="rtp_working_logic__image_swc_lry_21c" src="../../../images/rtp/coordinate_adjustment.png" alt="coordinate_adjustment1"/></div><br/>
|
||
</div>
|
||
<p class="- topic/p p" data-ofbid="d60860e206__20250409171035">在线性转换公式中，s 表示 RTP 的 ADC 分辨率，12bit 表示 4096，即 RTP 采样得到的数据范围是
|
||
0~4095。校准过程如下：</p>
|
||
<div class="- topic/p p" data-ofbid="d60860e209__20250409171035">
|
||
<ul class="- topic/ul ul" id="rtp_working_logic__ul_py2_cgs_sdc" data-ofbid="rtp_working_logic__ul_py2_cgs_sdc">
|
||
<li class="- topic/li li" data-ofbid="d60860e213__20250409171035">分别点击屏幕的四个角落，可测到 4 组 LCD 坐标值和触摸屏触摸屏坐标值。</li>
|
||
<li class="- topic/li li" data-ofbid="d60860e216__20250409171035">列出 8 个等式， 求解出 a、b、c、d、e、f 的值。<p class="- topic/p p" data-ofbid="d60860e218__20250409171035">开源 tslib 库附带的 ts_calibrate
|
||
工具，提供了 5 点校准的处理。</p></li>
|
||
</ul>
|
||
</div>
|
||
</li>
|
||
</ul></div></section>
|
||
<section class="- topic/section section" id="rtp_working_logic__section_uwc_lry_21c" data-ofbid="rtp_working_logic__section_uwc_lry_21c"><h2 class="- topic/title title sectiontitle">压感计算</h2><p class="- topic/p p" data-ofbid="d60860e228__20250409171035">当打开压感数据后，便于根据压力数据来过滤掉一些抖动的点。
|
||
尤其在触摸时抬起的瞬间会大概率产生压力很小的采样数据，这样的数据会存在较大误差，可以根据压力将其过滤掉。</p><p class="- topic/p p" data-ofbid="d60860e230__20250409171035">可以通过下列公式计算压力数据：</p><p class="- topic/p p" data-ofbid="d60860e232__20250409171035"><strong class="+ topic/ph hi-d/b ph b">公式 1：</strong></p><div class="- topic/p p" data-ofbid="d60860e235__20250409171035"><br/><div class="imagecenter"><img class="- topic/image image imagecenter" id="rtp_working_logic__image_vwc_lry_21c" src="../../../images/rtp/pressure_formula1.png" width="192" alt="pressure_formula"/></div><br/></div><p class="- topic/p p" data-ofbid="d60860e241__20250409171035"><strong class="+ topic/ph hi-d/b ph b">公式 2：</strong></p><div class="- topic/p p" data-ofbid="d60860e244__20250409171035"><br/><div class="imagecenter"><img class="- topic/image image imagecenter" id="rtp_working_logic__image_wwc_lry_21c" src="../../../images/rtp/pressure_formula2.png" width="384" alt="pressure_formula21"/></div><br/></div><div class="- topic/p p" data-ofbid="d60860e250__20250409171035">两个公式的计算结果误差在 10% 以内。其中：<ul class="- topic/ul ul" id="rtp_working_logic__ul_zjv_vgs_sdc" data-ofbid="rtp_working_logic__ul_zjv_vgs_sdc">
|
||
<li class="- topic/li li" data-ofbid="d60860e254__20250409171035">
|
||
<p class="- topic/p p" data-ofbid="d60860e256__20250409171035">公式 1 只需一个 plate 参数，公式 2 需要 x-plate 和 y-plate 参数。</p>
|
||
</li>
|
||
<li class="- topic/li li" data-ofbid="d60860e260__20250409171035">
|
||
<p class="- topic/p p" data-ofbid="d60860e262__20250409171035">公式 1 中的 Z1 和 Z2 对应坐标组合 ZA 和 ZB 的数据</p>
|
||
</li>
|
||
<li class="- topic/li li" data-ofbid="d60860e266__20250409171035">
|
||
<p class="- topic/p p" data-ofbid="d60860e268__20250409171035">根据屏幕实测的电阻值，配置 DTS 中的 x-plate 和 y-plate 参数。</p>
|
||
</li>
|
||
</ul></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="#rtp_working_logic__section_dwc_lry_21c" data-tocid="rtp_working_logic__section_dwc_lry_21c">硬件结构原理</a></div></li><li class="section-item"><div class="section-title"><a href="#rtp_working_logic__section_gwc_lry_21c" data-tocid="rtp_working_logic__section_gwc_lry_21c">坐标计算</a></div></li><li class="section-item"><div class="section-title"><a href="#rtp_working_logic__section_qwc_lry_21c" data-tocid="rtp_working_logic__section_qwc_lry_21c">坐标采样</a></div></li><li class="section-item"><div class="section-title"><a href="#rtp_working_logic__section_rwc_lry_21c" data-tocid="rtp_working_logic__section_rwc_lry_21c">坐标校准</a></div></li><li class="section-item"><div class="section-title"><a href="#rtp_working_logic__section_uwc_lry_21c" data-tocid="rtp_working_logic__section_uwc_lry_21c">压感计算</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 © 2019-2025 广东匠芯创科技有限公司. All rights reserved.</p>
|
||
</div>
|
||
<div>
|
||
<div class="generation_time">
|
||
Update Time: 2025-04-09
|
||
</div>
|
||
</div>
|
||
|
||
</div>
|
||
</footer>
|
||
|
||
<div id="go2top" class="d-print-none">
|
||
<span class="oxy-icon oxy-icon-up"></span>
|
||
</div>
|
||
|
||
<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> |