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data-tocid="usb_display_config_screen_cut-d5856e2083" class="topicref" data-id="usb_display_config_screen_cut" data-state="leaf"><span role="button" class="wh-expand-btn"></span><div class="title"><a href="../../../topics/sdk/display/usb-display-config-screen-cut.html" id="usb_display_config_screen_cut-d5856e2083-link">配置屏幕裁剪</a></div></div></li><li role="treeitem"><div data-tocid="usb_display_install_drive-d5856e2095" class="topicref" data-id="usb_display_install_drive" data-state="leaf"><span role="button" class="wh-expand-btn"></span><div class="title"><a href="../../../topics/sdk/app/usb-display-install-drive.html" id="usb_display_install_drive-d5856e2095-link">安装驱动</a></div></div></li><li role="treeitem"><div data-tocid="usb_display_tp_calibrate_windows-d5856e2107" class="topicref" data-id="usb_display_tp_calibrate_windows" data-state="leaf"><span role="button" class="wh-expand-btn"></span><div class="title"><a href="../../../topics/sdk/app/usb-display-tp-calibrate_windows.html" id="usb_display_tp_calibrate_windows-d5856e2107-link">在 Windows 中校准触摸屏</a></div></div></li></ul></li></ul></li><li role="treeitem" aria-expanded="false"><div data-tocid="id-d5856e2119" class="topicref" data-id="id" data-state="not-ready"><span role="button" tabindex="0" aria-labelledby="button-expand-action id-d5856e2119-link" class="wh-expand-btn"></span><div class="title"><a href="../../../topics/sdk/peripheral/peripheral-intro.html" id="id-d5856e2119-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-d5856e2244" class="topicref" data-id="id" data-state="not-ready"><span role="button" tabindex="0" aria-labelledby="button-expand-action id-d5856e2244-link" class="wh-expand-btn"></span><div class="title"><a href="../../../topics/sdk/bringup/chapter-bringup.html" id="id-d5856e2244-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="false"><div data-tocid="id-d5856e2345" class="topicref" data-id="id" data-state="not-ready"><span role="button" tabindex="0" aria-labelledby="button-expand-action id-d5856e2345-link" class="wh-expand-btn"></span><div class="title"><a href="../../../topics/sdk/chapter-advanced-app.html" id="id-d5856e2345-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></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/app/usb-display-config.dita">Edit online</a></span><h1 class="- topic/title title topictitle1" id="ariaid-title1">配置 USB 设备功能</h1><div class="date inPage">15 Jan 2024</div><div style="color: gray;">
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Read time: 3 minute(s)
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</div><div class="- topic/body body"><section class="- topic/section section" id="usb_display_config__section_hzq_5dd_b2c" data-ofbid="usb_display_config__section_hzq_5dd_b2c"><h2 class="- topic/title title sectiontitle">配置 USB Device Controller</h2>
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<p class="- topic/p p" data-ofbid="d63301e24__20250121171521">配置 USB 设备功能和进行其他开发工作之前，需按照下列流程配置 USB Device Controller：</p>
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<ol class="- topic/ol ol" id="usb_display_config__ol_ong_5hc_b2c" data-ofbid="usb_display_config__ol_ong_5hc_b2c"><li class="- topic/li li" data-ofbid="d63301e28__20250121171521">进入 SDK 根目录，执行下列命令，进入 menuconfig
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的功能配置界面：<pre class="+ topic/pre pr-d/codeblock pre codeblock language-c" id="usb_display_config__codeblock_vyf_whc_b2c" data-ofbid="usb_display_config__codeblock_vyf_whc_b2c">scons menuconfig</pre></li><li class="- topic/li li" data-ofbid="d63301e32__20250121171521">
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<div class="- topic/p p" data-ofbid="d63301e34__20250121171521">在 menuconfig 中的功能界面，使能 USB 端口并配置当前 USB 端口为 Device
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模式。<pre class="+ topic/pre pr-d/codeblock pre codeblock language-c" id="usb_display_config__codeblock_rp5_yhc_b2c" data-ofbid="usb_display_config__codeblock_rp5_yhc_b2c">Board options
|
||
[*] Using Usb0
|
||
Select Usb0 mode (Device) ---></pre></div>
|
||
</li><li class="- topic/li li" data-ofbid="d63301e39__20250121171521">
|
||
<div class="- topic/p p" data-ofbid="d63301e41__20250121171521">使能 CherryUSB 驱动，并使能 Device
|
||
模式。<pre class="+ topic/pre pr-d/codeblock pre codeblock language-c" id="usb_display_config__codeblock_imw_13c_b2c" data-ofbid="usb_display_config__codeblock_imw_13c_b2c">Local packages options
|
||
> Third-party packages options
|
||
[*] CherryUSB: tiny and portable USB host/device stack <strong class="hl-keyword">for</strong> embedded system with USB IP --->
|
||
[*] Enable usb device mode ---></pre></div>
|
||
<p class="- topic/p p" data-ofbid="d63301e46__20250121171521">完成上述配置后，USB Device Controller 即可作为 USB 设备进行工作。根据需要，可以继续完成其他功能配置或进行调试和开发。</p>
|
||
</li></ol>
|
||
</section><section class="- topic/section section" id="usb_display_config__section_e11_d3c_b2c" data-ofbid="usb_display_config__section_e11_d3c_b2c"><h2 class="- topic/title title sectiontitle">配置基本显示功能</h2>
|
||
|
||
<p class="- topic/p p" data-ofbid="d63301e55__20250121171521">如需实现 USB Display 的基本显示功能，必须配置 LCD 参数，确保 LCD 能正常显示。关于详细配置描述，可查看 <a class="- topic/xref xref" href="../display/display_config_lite.html">Display 配置</a>和<a class="- topic/xref xref" href="../display/display_panel_port_lite.html">屏适配指南</a>。</p>
|
||
<div class="- topic/p p" data-ofbid="d63301e66__20250121171521">除了 LCD 基础功能参数外，USB 端还可对显示功能进行额外控制，详细参数配置描述如下：<ol class="- topic/ol ol" data-ofbid="d63301e68__20250121171521"><li class="- topic/li li" data-ofbid="d63301e69__20250121171521">进入 SDK 根目录，执行下列命令，进入 menuconfig
|
||
的功能配置界面。<pre class="+ topic/pre pr-d/codeblock pre codeblock language-c" id="usb_display_config__codeblock_kw1_ftc_b2c" data-ofbid="usb_display_config__codeblock_kw1_ftc_b2c">scons menuconfig</pre></li><li class="- topic/li li" data-ofbid="d63301e73__20250121171521">
|
||
<div class="- topic/p p" data-ofbid="d63301e75__20250121171521">在 menuconfig 中的功能界面，使能 CherryUSB 和 USB Device
|
||
Mode。<pre class="+ topic/pre pr-d/codeblock pre codeblock language-c" id="usb_display_config__codeblock_lw1_ftc_b2c" data-ofbid="usb_display_config__codeblock_lw1_ftc_b2c">> Local packages options
|
||
> Third-party packages options
|
||
[*] CherryUSB: tiny and portable USB host/device stack <strong class="hl-keyword">for</strong> embedded system with USB IP --->
|
||
[*] Enable usb device mode ---></pre></div>
|
||
<div class="- topic/p p" data-ofbid="d63301e80__20250121171521">此时，可配置下列相关功能参数：<div class="- topic/note note note note_note" id="usb_display_config__note_slj_ytc_b2c" data-ofbid="usb_display_config__note_slj_ytc_b2c"><span class="note__title">注：</span> USB Display 会通过系统 API
|
||
自动读取当前屏幕的分辨率，无需额外配置。</div><pre class="+ topic/pre pr-d/codeblock pre codeblock language-c" id="usb_display_config__codeblock_qjp_ntc_b2c" data-ofbid="usb_display_config__codeblock_qjp_ntc_b2c">[*] Use display template
|
||
select USB coding format (AUTO) --->
|
||
(<span class="hl-number">0</span>) scale down <strong class="hl-keyword">for</strong> X two sides
|
||
(<span class="hl-number">0</span>) scale down <strong class="hl-keyword">for</strong> Y two sides
|
||
[ ] Using <strong class="hl-keyword">switch</strong> LCD on/off gpio (NEW)
|
||
[ ] Print FPS in-live</pre></div>
|
||
<div class="table-container"><table class="- topic/table table frame-all" id="usb_display_config__table_wbp_w5c_b2c" data-ofbid="usb_display_config__table_wbp_w5c_b2c" data-cols="2"><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">USB Display 功能的详细参数配置</span></caption><colgroup><col style="width:33.222591362126245%"/><col style="width:66.77740863787375%"/></colgroup><thead class="- topic/thead thead"><tr class="- topic/row"><th class="- topic/entry entry colsep-1 rowsep-1" id="usb_display_config__table_wbp_w5c_b2c__entry__1">参数</th><th class="- topic/entry entry colsep-0 rowsep-1" id="usb_display_config__table_wbp_w5c_b2c__entry__2">描述</th></tr></thead><tbody class="- topic/tbody tbody"><tr class="- topic/row"><td class="- topic/entry entry colsep-1 rowsep-1" headers="usb_display_config__table_wbp_w5c_b2c__entry__1"><code class="+ topic/ph pr-d/codeph ph codeph">Use display template</code></td><td class="- topic/entry entry colsep-0 rowsep-1" headers="usb_display_config__table_wbp_w5c_b2c__entry__2">使能显示实例模板，必须使能。</td></tr><tr class="- topic/row"><td class="- topic/entry entry colsep-1 rowsep-1" headers="usb_display_config__table_wbp_w5c_b2c__entry__1"><code class="+ topic/ph pr-d/codeph ph codeph">select USB coding format
|
||
(AUTO)</code></td><td class="- topic/entry entry colsep-0 rowsep-1" headers="usb_display_config__table_wbp_w5c_b2c__entry__2">图像编码格式，当前主要支持 JPEG 和 H264 编码格式。如不确定编码格式对应的性能，建议使用默认
|
||
AUTO
|
||
选项。<pre class="+ topic/pre pr-d/codeblock pre codeblock language-c" id="usb_display_config__codeblock_fhn_1vc_b2c" data-ofbid="usb_display_config__codeblock_fhn_1vc_b2c">(X) AUTO
|
||
( ) H264
|
||
( ) JPEG</pre></td></tr><tr class="- topic/row"><td class="- topic/entry entry colsep-1 rowsep-1" headers="usb_display_config__table_wbp_w5c_b2c__entry__1"><code class="+ topic/ph pr-d/codeph ph codeph">Using switch LCD on/off gpio
|
||
(NEW)</code></td><td class="- topic/entry entry colsep-0 rowsep-1" headers="usb_display_config__table_wbp_w5c_b2c__entry__2">
|
||
<p class="- topic/p p" data-ofbid="d63301e120__20250121171521">使用物理开关控制屏幕开关。</p>
|
||
</td></tr><tr class="- topic/row"><td class="- topic/entry entry colsep-1 rowsep-1" headers="usb_display_config__table_wbp_w5c_b2c__entry__1"><code class="+ topic/ph pr-d/codeph ph codeph">GPIO name(NEW)</code></td><td class="- topic/entry entry colsep-0 rowsep-1" headers="usb_display_config__table_wbp_w5c_b2c__entry__2">
|
||
<p class="- topic/p p" data-ofbid="d63301e129__20250121171521">开关对应的 GPIO 管脚以及控制的正负极性参数如下：</p>
|
||
<pre class="+ topic/pre pr-d/codeblock pre codeblock language-c" id="usb_display_config__codeblock_z5y_fvc_b2c" data-ofbid="usb_display_config__codeblock_z5y_fvc_b2c"> (PD.<span class="hl-number">6</span>) GPIO name (NEW)
|
||
Select GPIO polarity (<span class="hl-number">0</span> = On, <span class="hl-number">1</span> = Off) ---></pre>
|
||
</td></tr><tr class="- topic/row"><td class="- topic/entry entry colsep-1 rowsep-1" headers="usb_display_config__table_wbp_w5c_b2c__entry__1">
|
||
<code class="+ topic/ph pr-d/codeph ph codeph">Select switch mode</code></td><td class="- topic/entry entry colsep-0 rowsep-1" headers="usb_display_config__table_wbp_w5c_b2c__entry__2">
|
||
<p class="- topic/p p" data-ofbid="d63301e142__20250121171521">选择开关模式</p>
|
||
<ul class="- topic/ul ul" id="usb_display_config__ul_sp2_4cd_b2c" data-ofbid="usb_display_config__ul_sp2_4cd_b2c"><li class="- topic/li li" data-ofbid="d63301e146__20250121171521"><code class="+ topic/ph pr-d/codeph ph codeph">Select switch mode (Backlight
|
||
Switch)</code>：屏幕背光开关模式。使能后，表示使用物理开关来开关屏幕背光。</li><li class="- topic/li li" data-ofbid="d63301e150__20250121171521"><code class="+ topic/ph pr-d/codeph ph codeph">Select switch mode (USB Display
|
||
Switch)</code>：USB Display 开关模式。使能后，表示使用物理开关切换
|
||
USB Display 模式和 LVGL 本地模式。</li></ul>
|
||
</td></tr><tr class="- topic/row"><td class="- topic/entry entry colsep-1 rowsep-1" headers="usb_display_config__table_wbp_w5c_b2c__entry__1"><code class="+ topic/ph pr-d/codeph ph codeph">Default usb display disable
|
||
(NEW)</code></td><td class="- topic/entry entry colsep-0 rowsep-1" headers="usb_display_config__table_wbp_w5c_b2c__entry__2">
|
||
<p class="- topic/p p" data-ofbid="d63301e161__20250121171521">是否默认 Disable USB Display。</p>
|
||
<div class="- topic/p p" data-ofbid="d63301e164__20250121171521">该功能通过调用下列函数实现。进行二次开发时，用户可直接调用下列函数：<pre class="+ topic/pre pr-d/codeblock pre codeblock language-c" id="usb_display_config__codeblock_ddc_fdd_b2c" data-ofbid="usb_display_config__codeblock_ddc_fdd_b2c"><strong class="hl-keyword">void</strong> usb_display_enable(<strong class="hl-keyword">void</strong>);
|
||
<strong class="hl-keyword">void</strong> usb_display_disable(<strong class="hl-keyword">void</strong>);</pre></div>
|
||
</td></tr><tr class="- topic/row"><td class="- topic/entry entry colsep-1 rowsep-0" headers="usb_display_config__table_wbp_w5c_b2c__entry__1"><code class="+ topic/ph pr-d/codeph ph codeph">Print FPS in-live</code></td><td class="- topic/entry entry colsep-0 rowsep-0" headers="usb_display_config__table_wbp_w5c_b2c__entry__2">串口 FPS 实时打印开关的默认值。<div class="- topic/p p" data-ofbid="d63301e175__20250121171521">使能后，系统默认会在调试串口中打印 USB Display
|
||
的实时
|
||
FPS，示例如下：<pre class="+ topic/pre pr-d/codeblock pre codeblock language-c" id="usb_display_config__codeblock_ctz_ldd_b2c" data-ofbid="usb_display_config__codeblock_ctz_ldd_b2c">Current FPS: <span class="hl-number">60.0</span>
|
||
Current FPS: <span class="hl-number">59.0</span></pre></div><p class="- topic/p p" data-ofbid="d63301e179__20250121171521">在系统运行过程中，可以使用
|
||
<span class="+ topic/keyword sw-d/cmdname keyword cmdname">usb_fps on/off</span> 串口调试命令来动态的打开/ 关闭
|
||
FPS 打印。</p></td></tr></tbody></table></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="#usb_display_config__section_hzq_5dd_b2c" data-tocid="usb_display_config__section_hzq_5dd_b2c">配置 USB Device Controller</a></div></li><li class="section-item"><div class="section-title"><a href="#usb_display_config__section_e11_d3c_b2c" data-tocid="usb_display_config__section_e11_d3c_b2c">配置基本显示功能</a></div></li></ul></div>
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