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href="../../../topics/chapter-title/chapter-interface-sdk.html" id="concept_nww_hzh_pzb-d5856e4868-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></li><li role="treeitem" aria-expanded="false"><div data-tocid="chapter-safety-d5856e6083" class="topicref" data-id="chapter-safety" data-state="not-ready"><span role="button" tabindex="0" aria-labelledby="button-expand-action 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 topic" 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/dvp/dvp_test_lite.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;">
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Read time: 1 minute(s)
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</div><div class="- topic/body body"><section class="- topic/section section" id="id__section_n32_g3t_2dc" data-ofbid="id__section_n32_g3t_2dc"><h2 class="- topic/title title sectiontitle">准备测试环境</h2>
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<div class="- topic/div div">
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<ul class="- topic/ul ul" id="id__ul_tht_g3t_2dc" data-ofbid="id__ul_tht_g3t_2dc"><li class="- topic/li li" data-ofbid="d65177e27__20250121171521"><strong class="+ topic/ph hi-d/b ph b">硬件</strong>
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<ul class="- topic/ul ul simple" id="id__ul_ogg_23t_2dc" data-ofbid="id__ul_ogg_23t_2dc"><li class="- topic/li li" data-ofbid="d65177e32__20250121171521">
|
||
<p class="- topic/p p" data-ofbid="d65177e34__20250121171521">需要验证板，上面可以接 DVP 子板</p>
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</li><li class="- topic/li li" data-ofbid="d65177e37__20250121171521">
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<p class="- topic/p p" data-ofbid="d65177e39__20250121171521">可转接摄像头的子板</p>
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</li><li class="- topic/li li" data-ofbid="d65177e42__20250121171521">
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<p class="- topic/p p" data-ofbid="d65177e44__20250121171521">摄像头，如 OV5640</p>
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</li></ul></li><li class="- topic/li li" data-ofbid="d65177e47__20250121171521"><strong class="+ topic/ph hi-d/b ph b">软件</strong>
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<ul class="- topic/ul ul simple" id="id__ul_pgg_23t_2dc" data-ofbid="id__ul_pgg_23t_2dc"><li class="- topic/li li" data-ofbid="d65177e52__20250121171521">
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<p class="- topic/p p" data-ofbid="d65177e54__20250121171521">PC 端的串口终端软件，用于 PC 和开发板进行串口通信</p>
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</li><li class="- topic/li li" data-ofbid="d65177e57__20250121171521">
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<p class="- topic/p p" data-ofbid="d65177e59__20250121171521">DVP 模块的测试 demo：test_dvp</p>
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</li></ul></li></ul>
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</div>
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</section><section class="- topic/section section" id="id__section_lwy_33t_2dc" data-ofbid="id__section_lwy_33t_2dc"><h2 class="- topic/title title sectiontitle">test_dvp 测试</h2>
|
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|
||
<div class="- topic/p p" data-ofbid="d65177e69__20250121171521">test_dvp 的主要功能是将摄像头的数据采集后，传给 DE 模块的 Video 图层进行显示。test_dvp
|
||
支持多种视频格式，并允许用户指定捕获帧的数量以及旋转角度。<div class="- topic/note note note note_note" id="id__note_ibr_x3t_2dc" data-ofbid="id__note_ibr_x3t_2dc"><span class="note__title">注：</span> 关于 test_dvp 的设计，详见
|
||
<a class="- topic/xref xref" href="dvp_demo.html">APP Demo</a></div></div>
|
||
|
||
<div class="- topic/p p" data-ofbid="d65177e77__20250121171521">使用 <code class="+ topic/ph pr-d/codeph ph codeph">test_dvp</code> 命令可以测试摄像头数据采集和显示功能，详细流程如下：<ol class="- topic/ol ol" id="id__ol_jvk_1jt_2dc" data-ofbid="id__ol_jvk_1jt_2dc"><li class="- topic/li li" data-ofbid="d65177e83__20250121171521">
|
||
<div class="- topic/div div section" id="id__ov5640"> 配置 OV5640 摄像头，详见<a xml:lang="zh-CN" lang="zh-CN" class="- topic/xref xref" href="dvp_config.html#dvp_configuration__li_wf4_qjt_2dc">打开 Camera。</a>
|
||
</div>
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||
</li><li class="- topic/li li" data-ofbid="d65177e92__20250121171521">
|
||
<div class="- topic/p p" data-ofbid="d65177e94__20250121171521">在 <span class="- topic/ph ph">Luban-Lite</span> 根目录下执行 <span class="+ topic/keyword sw-d/cmdname keyword cmdname">scons --menuconfig</span>，进入 menuconfig
|
||
的功能配置界面，按如下选择，打开 test_dvp
|
||
驱动测试命令工具：<pre class="+ topic/pre pr-d/codeblock pre codeblock language-c" id="id__codeblock_o5q_m3t_2dc" data-ofbid="id__codeblock_o5q_m3t_2dc">Drivers options --->
|
||
Drivers examples --->
|
||
[*] Enable DVP driver test command</pre></div>
|
||
</li><li class="- topic/li li" data-ofbid="d65177e105__20250121171521">进入 RT-Thread Shell。</li><li class="- topic/li li" data-ofbid="d65177e107__20250121171521">以采集 1000 帧图像数据，并且先旋转 90
|
||
度再显示为例，执行下列操作：<pre class="+ topic/pre pr-d/codeblock pre codeblock language-c" id="id__codeblock_f5w_n3t_2dc" data-ofbid="id__codeblock_f5w_n3t_2dc">test_dvp -c <span class="hl-number">1000</span> -a <span class="hl-number">90</span></pre><div class="- topic/p p" data-ofbid="d65177e111__20250121171521">打开
|
||
<code class="+ topic/ph pr-d/codeph ph codeph">test_dvp</code> 的编译后，板子上可直接运行 <code class="+ topic/ph pr-d/codeph ph codeph">test_dvp</code>
|
||
命令，例如执行下列命令可查看帮助信息：<pre class="+ topic/pre pr-d/codeblock pre codeblock language-c" id="id__codeblock_fvq_n3t_2dc" data-ofbid="id__codeblock_fvq_n3t_2dc">test_dvp -h</pre>输出示例如下：<pre class="+ topic/pre pr-d/codeblock pre codeblock language-c" id="id__codeblock_mqj_4xm_4dc" data-ofbid="id__codeblock_mqj_4xm_4dc">
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||
Usage: test_dvp [options]:
|
||
-f, --format format of input video, NV16/NV12 etc
|
||
-c, --count the number of capture frame.(<span class="hl-number">0</span> means infinity)
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||
-a, --angle the angle of rotation
|
||
-h, --usage
|
||
|
||
Example: test_dvp -f nv16 -c <span class="hl-number">1</span></pre></div></li></ol></div>
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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="#id__section_n32_g3t_2dc" data-tocid="id__section_n32_g3t_2dc">准备测试环境</a></div></li><li class="section-item"><div class="section-title"><a href="#id__section_lwy_33t_2dc" data-tocid="id__section_lwy_33t_2dc">test_dvp 测试</a></div></li></ul></div>
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