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<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://172.16.35.88/tasks/jdssno1uvvbf2mltu9kb9v3if05d5gopuakboe8hlud18rma/edit/F:/aicdita/aicdita-cn/topics/sdk/rtp/rtp_user_guide.dita">Edit online</a></span><h1 class="- topic/title title topictitle1" id="ariaid-title1">RTP 使用指南</h1><div class="date inPage">2 Dec 2024</div><div style="color: gray;">
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Read time: 1 minute(s)
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</div><div class="- topic/body concept/conbody body conbody"><div class="table-container"><table class="- topic/table table frame-all" id="rtp-user-guide__table_l3x_3ry_21c" data-ofbid="rtp-user-guide__table_l3x_3ry_21c" data-cols="3"><caption class="- topic/title title tablecap" data-caption-side="top" data-is-repeated="true"><span class="table--title-label">表<span class="table--title-label-number"> 1</span><span class="table--title-label-punctuation">. </span></span><span class="table--title">术语定义</span></caption><colgroup><col style="width:33.33333333333333%"/><col style="width:33.33333333333333%"/><col style="width:33.33333333333333%"/></colgroup><thead class="- topic/thead thead"><tr class="- topic/row"><th class="- topic/entry entry colsep-1 rowsep-1" id="rtp-user-guide__table_l3x_3ry_21c__entry__1">术语</th><th class="- topic/entry entry colsep-1 rowsep-1" id="rtp-user-guide__table_l3x_3ry_21c__entry__2">定义</th><th class="- topic/entry entry colsep-0 rowsep-1" id="rtp-user-guide__table_l3x_3ry_21c__entry__3">注释说明</th></tr></thead><tbody class="- topic/tbody tbody"><tr class="- topic/row"><td class="- topic/entry entry colsep-1 rowsep-1" headers="rtp-user-guide__table_l3x_3ry_21c__entry__1">ADC</td><td class="- topic/entry entry colsep-1 rowsep-1" headers="rtp-user-guide__table_l3x_3ry_21c__entry__2">Analog Digital Converter</td><td class="- topic/entry entry colsep-0 rowsep-1" headers="rtp-user-guide__table_l3x_3ry_21c__entry__3">模拟数字转换器</td></tr><tr class="- topic/row"><td class="- topic/entry entry colsep-1 rowsep-1" headers="rtp-user-guide__table_l3x_3ry_21c__entry__1">ADCIM</td><td class="- topic/entry entry colsep-1 rowsep-1" headers="rtp-user-guide__table_l3x_3ry_21c__entry__2">ADC Interface Management</td><td class="- topic/entry entry colsep-0 rowsep-1" headers="rtp-user-guide__table_l3x_3ry_21c__entry__3">ADC 接口管理模块</td></tr><tr class="- topic/row"><td class="- topic/entry entry colsep-1 rowsep-0" headers="rtp-user-guide__table_l3x_3ry_21c__entry__1">RTP</td><td class="- topic/entry entry colsep-1 rowsep-0" headers="rtp-user-guide__table_l3x_3ry_21c__entry__2">Resistance Touch Panel</td><td class="- topic/entry entry colsep-0 rowsep-0" headers="rtp-user-guide__table_l3x_3ry_21c__entry__3">电阻触摸屏</td></tr></tbody></table></div><section class="- topic/section section" id="rtp-user-guide__section_sqy_hc4_4dc" data-ofbid="rtp-user-guide__section_sqy_hc4_4dc"><h2 class="- topic/title title sectiontitle">模块架构</h2>
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<p class="- topic/p p" data-ofbid="d292985e64__20250121171759">RTP 需要依赖 ADCIM 模块（统一管理硬件通路和处理信号校准），其关系如图：</p>
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<div class="- topic/p p" data-ofbid="d292985e67__20250121171759">
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<figure class="- topic/fig fig fignone" id="rtp-user-guide__fig_tkv_nry_21c" data-ofbid="rtp-user-guide__fig_tkv_nry_21c"><br/><div class="imagecenter"><img class="- topic/image image imagecenter" id="rtp-user-guide__image_xgb_l22_ldc" src="../../../images/rtp/rtp_hw_system.png" alt="rtp_hw_system"/></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 和 ADCIM 的逻辑关系图</span></figcaption></figure>
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</div>
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<div class="- topic/p p" data-ofbid="d292985e77__20250121171759">对于一次 RTP 的点击动作，会有 4 个相关的采样点：X+、X-、Y+、Y-（详见下文）， 这些采样点的选择和控制方式可以有不同的组合，分为两大类采样模式：<ul class="- topic/ul ul" id="rtp-user-guide__ul_wrf_pry_21c" data-ofbid="rtp-user-guide__ul_wrf_pry_21c"><li class="- topic/li li" data-ofbid="d292985e80__20250121171759">
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<p class="- topic/p p" data-ofbid="d292985e82__20250121171759">手动模式</p>
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<p class="- topic/p p" data-ofbid="d292985e85__20250121171759">手动去配置硬件 4 个采样点的电路信号，来组合得到 XN、YN、ZA、ZB 等采样数据。</p>
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</li><li class="- topic/li li" data-ofbid="d292985e88__20250121171759">自动模式<div class="- topic/p p" data-ofbid="d292985e90__20250121171759">自动模式意味着硬件自动配置电路，直接输出 XN、YN、ZA、ZB 等采样结果。 在自动模式中，根据采样数据是否连续进行又分为：<ul class="- topic/ul ul" id="rtp-user-guide__ul_cwc_lry_21c" data-ofbid="rtp-user-guide__ul_cwc_lry_21c"><li class="- topic/li li" data-ofbid="d292985e93__20250121171759">
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<p class="- topic/p p" data-ofbid="d292985e95__20250121171759">Period sample：<strong class="+ topic/ph hi-d/b ph b">周期采样</strong>，硬件会按照配置的周期自动采集和上报数据</p>
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</li><li class="- topic/li li" data-ofbid="d292985e101__20250121171759">
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<p class="- topic/p p" data-ofbid="d292985e103__20250121171759">Single sample：为避免和“单个采样点”混淆，称作 <strong class="+ topic/ph hi-d/b ph b">非周期采样</strong>，由软件触发完成一次采样</p>
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</li></ul></div></li></ul></div>
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</section><section class="- topic/section section" id="rtp-user-guide__section_oq5_gc4_4dc" data-ofbid="rtp-user-guide__section_oq5_gc4_4dc"><h2 class="- topic/title title sectiontitle">模块特性</h2>
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<div class="- topic/p p" data-ofbid="d292985e115__20250121171759">
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<ul class="- topic/ul ul" id="rtp-user-guide__ul_zvc_lry_21c" data-ofbid="rtp-user-guide__ul_zvc_lry_21c"><li class="- topic/li li" data-ofbid="d292985e118__20250121171759">
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<p class="- topic/p p" data-ofbid="d292985e120__20250121171759">支持 4 线 RTP，即 X+、X-、Y+、Y-</p>
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</li><li class="- topic/li li" data-ofbid="d292985e123__20250121171759">
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<p class="- topic/p p" data-ofbid="d292985e125__20250121171759">支持压力感应</p>
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</li><li class="- topic/li li" data-ofbid="d292985e128__20250121171759">
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<p class="- topic/p p" data-ofbid="d292985e130__20250121171759">支持最多 2 点触摸</p>
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</li><li class="- topic/li li" data-ofbid="d292985e133__20250121171759">
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<p class="- topic/p p" data-ofbid="d292985e135__20250121171759">支持采样滤波，滤波参数可配置</p>
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</li><li class="- topic/li li" data-ofbid="d292985e138__20250121171759">
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<p class="- topic/p p" data-ofbid="d292985e140__20250121171759">支持触摸检测中断</p>
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</li><li class="- topic/li li" data-ofbid="d292985e143__20250121171759">
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<p class="- topic/p p" data-ofbid="d292985e145__20250121171759">FIFO 深度 16</p>
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</li></ul>
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<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-user-guide__section_sqy_hc4_4dc" data-tocid="rtp-user-guide__section_sqy_hc4_4dc">模块架构</a></div></li><li class="section-item"><div class="section-title"><a href="#rtp-user-guide__section_oq5_gc4_4dc" data-tocid="rtp-user-guide__section_oq5_gc4_4dc">模块特性</a></div></li></ul></div>
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