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href="../../../topics/sdk/rtp/rtp_faq_2.html" id="rtp_common_issues-d5856e5793-link">常见问题</a></div></div></li></ul></li><li role="treeitem" aria-expanded="false"><div data-tocid="spi-d5856e5805" class="topicref" data-id="spi" data-state="not-ready"><span role="button" tabindex="0" aria-labelledby="button-expand-action spi-d5856e5805-link" class="wh-expand-btn"></span><div class="title"><a href="../../../topics/sdk/spi/spi_user_guide_2.html" id="spi-d5856e5805-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-d5856e5879" class="topicref" data-id="uart_user_guide" data-state="not-ready"><span role="button" tabindex="0" aria-labelledby="button-expand-action uart_user_guide-d5856e5879-link" class="wh-expand-btn"></span><div class="title"><a href="../../../topics/sdk/uart/uart_user_guide_2.html" id="uart_user_guide-d5856e5879-link">UART 使用指南</a></div></div></li><li role="treeitem" aria-expanded="false"><div 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chapter-safety-d5856e6083-link" class="wh-expand-btn"></span><div class="title"><a href="../../../topics/chapter-title/chapter-safety-sdk.html" id="chapter-safety-d5856e6083-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>
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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_faq.dita">Edit online</a></span><h1 class="- topic/title title topictitle1" id="ariaid-title1">常见问题</h1><div class="date inPage">15 Jan 2024</div><div style="color: gray;"></div><div class="- topic/body concept/conbody body conbody"><section class="- topic/section section" id="rtp_common_issues__section_e3t_s2p_ybc" data-ofbid="rtp_common_issues__section_e3t_s2p_ybc"><h2 class="- topic/title title sectiontitle">屏幕划线趋势有误</h2>
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<p class="- topic/p p" data-ofbid="d332593e29__20250121171835"><strong class="+ topic/ph hi-d/b ph b">现象</strong></p>
|
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<p class="- topic/p p" data-ofbid="d332593e33__20250121171835">无论在屏幕何处点击，画线均在一条斜线上。</p>
|
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<div class="- topic/p p" data-ofbid="d332593e36__20250121171835"><br/><div class="imagecenter"><img class="- topic/image image imagecenter" id="rtp_common_issues__image_xfd_52p_ybc" src="../../../images/rtp/screen_trend_error.png" alt="screen_trend_error"/></div><br/></div>
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<p class="- topic/p p" data-ofbid="d332593e41__20250121171835"><strong class="+ topic/ph hi-d/b ph b">原因分析</strong></p>
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<div class="- topic/p p" data-ofbid="d332593e46__20250121171835">逐个排除以下原因：<ol class="- topic/ol ol" id="rtp_common_issues__ol_anq_v2p_ybc" data-ofbid="rtp_common_issues__ol_anq_v2p_ybc"><li class="- topic/li li" data-ofbid="d332593e49__20250121171835">
|
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<p class="- topic/p p" data-ofbid="d332593e51__20250121171835">检查电路，RTP 四个信号均不能上下拉电阻</p>
|
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</li><li class="- topic/li li" data-ofbid="d332593e54__20250121171835">
|
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<p class="- topic/p p" data-ofbid="d332593e56__20250121171835">根据触摸屏的电阻实测方法，检查 x_plate 与 y_plate 是否测量准确</p>
|
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</li><li class="- topic/li li" data-ofbid="d332593e59__20250121171835">
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<p class="- topic/p p" data-ofbid="d332593e61__20250121171835">未有效校准，请重新校准</p>
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</li></ol></div>
|
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</section><section class="- topic/section section" id="rtp_common_issues__section_tpx_fvy_21c" data-ofbid="rtp_common_issues__section_tpx_fvy_21c"><h2 class="- topic/title title sectiontitle">跳点现象严重</h2>
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<p class="- topic/p p" data-ofbid="d332593e70__20250121171835"><strong class="+ topic/ph hi-d/b ph b">现象</strong></p>
|
||
<p class="- topic/p p" data-ofbid="d332593e74__20250121171835">在屏幕上点击后，会有明显的坐标跳跃，或者坐标不跟手的情况。</p>
|
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<p class="- topic/p p" data-ofbid="d332593e77__20250121171835"><strong class="+ topic/ph hi-d/b ph b">原因分析</strong></p>
|
||
<p class="- topic/p p" data-ofbid="d332593e81__20250121171835">逐个排除以下原因：</p>
|
||
<ol class="- topic/ol ol" id="rtp_common_issues__ol_vpx_fvy_21c" data-ofbid="rtp_common_issues__ol_vpx_fvy_21c"><li class="- topic/li li" data-ofbid="d332593e86__20250121171835">
|
||
<p class="- topic/p p" data-ofbid="d332593e88__20250121171835">屏幕的 X_PLATE、Y_PLATE 参数是因屏而异的，需要确认这两个参数是否准确。</p>
|
||
</li><li class="- topic/li li" data-ofbid="d332593e91__20250121171835">
|
||
<p class="- topic/p p" data-ofbid="d332593e93__20250121171835">是否对坐标进行了校准，校准尽量点在校准十字交点。</p>
|
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</li><li class="- topic/li li" data-ofbid="d332593e96__20250121171835">
|
||
<p class="- topic/p p" data-ofbid="d332593e98__20250121171835">是否设置了压感过滤参数 <span class="+ topic/keyword pr-d/parmname keyword parmname">AIC_RTP_MAX_PRESSURE
|
||
</span>，尝试调低这个参数，确认跳点效果是否有改善。</p>
|
||
</li></ol>
|
||
</section><section class="- topic/section section" id="rtp_common_issues__section_zpx_fvy_21c" data-ofbid="rtp_common_issues__section_zpx_fvy_21c"><h2 class="- topic/title title sectiontitle">屏幕可使用范围不完整</h2><p class="- topic/p p" data-ofbid="d332593e108__20250121171835"><strong class="+ topic/ph hi-d/b ph b">现象</strong></p><p class="- topic/p p" data-ofbid="d332593e111__20250121171835">屏幕边框呈较大规模的不规则空缺，如下图红色边框区域所示，并且无法在屏幕空缺区域内画线。</p><div class="- topic/p p" data-ofbid="d332593e113__20250121171835"><br/><div class="imagecenter"><img class="- topic/image image imagecenter" id="rtp_common_issues__image_aqx_fvy_21c" src="../../../images/rtp/incomplete_screen_edge.png" alt="incomplete_screen_edge1"/></div><br/></div><p class="- topic/p p" data-ofbid="d332593e117__20250121171835"><strong class="+ topic/ph hi-d/b ph b">原因分析</strong></p><ol class="- topic/ol ol" id="rtp_common_issues__ol_cqx_fvy_21c" data-ofbid="rtp_common_issues__ol_cqx_fvy_21c"><li class="- topic/li li" data-ofbid="d332593e121__20250121171835">
|
||
<p class="- topic/p p" data-ofbid="d332593e123__20250121171835">排查 RTP 模块是否每个信号串联一个磁珠，以及是否并联一个 10 nF 电容。</p>
|
||
</li><li class="- topic/li li" data-ofbid="d332593e126__20250121171835">
|
||
<p class="- topic/p p" data-ofbid="d332593e128__20250121171835">更换触摸屏，排查触摸屏是否损坏。</p>
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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_common_issues__section_e3t_s2p_ybc" data-tocid="rtp_common_issues__section_e3t_s2p_ybc">屏幕划线趋势有误</a></div></li><li class="section-item"><div class="section-title"><a href="#rtp_common_issues__section_tpx_fvy_21c" data-tocid="rtp_common_issues__section_tpx_fvy_21c">跳点现象严重</a></div></li><li class="section-item"><div class="section-title"><a href="#rtp_common_issues__section_zpx_fvy_21c" data-tocid="rtp_common_issues__section_zpx_fvy_21c">屏幕可使用范围不完整</a></div></li></ul></div>
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