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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/display/usb-display-config-addon.dita">Edit online</a></span><h1 class="- topic/title title topictitle1" id="ariaid-title1">配置附加功能</h1><div class="date inPage">15 Jan 2024</div><div style="color: gray;">
Read time: 7 minute(s)
</div><div class="- topic/body body"><p class="- topic/p p" data-ofbid="d242626e19__20250121171659">除了提供基本的显示功能USB Display 设备还能提供 USB HID TP / USB Audio / USB MSC
等附加功能。附加功能都是独立可选的,可以根据产品形态灵活组合。</p><p class="- topic/p p" data-ofbid="d242626e21__20250121171659">USB Display 利用 CherryUSB 组合了一个 USB 复合设备,从而可以作为提供多个功能的组合设备。其中 Interface 0 是基本的 Display
功能,其他每一个 Interface 对应一个独立的功能。</p><section class="- topic/section section" id="usb_display_config_addon__section_bts_h2d_b2c" data-ofbid="usb_display_config_addon__section_bts_h2d_b2c"><h2 class="- topic/title title sectiontitle">配置 USB HID TP </h2>
<div class="- topic/p p" data-ofbid="d242626e28__20250121171659">如需在 USB Display 产品中附带触摸功能,则需要在 USB 复合设备中增加 HID Touch 功能。详细配置步骤如下所示:<ol class="- topic/ol ol" id="usb_display_config_addon__ol_rmr_p2d_b2c" data-ofbid="usb_display_config_addon__ol_rmr_p2d_b2c"><li class="- topic/li li" data-ofbid="d242626e31__20250121171659">
<p class="- topic/p p" data-ofbid="d242626e33__20250121171659">确保正确配置 TP触摸屏参数并且 TP 可在本地正常使用。</p>
<p class="- topic/p p" data-ofbid="d242626e36__20250121171659">关于 TP 的详细配置说明,可查看 <a class="- topic/xref xref" href="../peripheral/touch.html">CTP 移植指南</a></p>
</li><li class="- topic/li li" data-ofbid="d242626e43__20250121171659">在 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_addon__codeblock_kw1_ftc_b2c" data-ofbid="usb_display_config_addon__codeblock_kw1_ftc_b2c">scons menuconfig</pre></li><li class="- topic/li li" data-ofbid="d242626e47__20250121171659">
<div class="- topic/p p" data-ofbid="d242626e49__20250121171659">使能 CherryUSB 中 HID TP 类型的 Device Class
驱动,并且使能对应实例模板。<pre class="+ topic/pre pr-d/codeblock pre codeblock language-c" id="usb_display_config_addon__codeblock_l2f_dfd_b2c" data-ofbid="usb_display_config_addon__codeblock_l2f_dfd_b2c">&gt; Local packages options
&gt; Third-party packages options
[*] CherryUSB: tiny and portable USB host/device stack <strong class="hl-keyword">for</strong> embedded system with USB IP ---&gt;
[*] Enable usb device mode ---&gt;
[*] Enable usb hid device ---&gt;
Use hid template (touch) ---&gt;
Hid Touch Parameter ---&gt;</pre></div>
</li><li class="- topic/li li" data-ofbid="d242626e54__20250121171659">
<div class="- topic/p p" data-ofbid="d242626e56__20250121171659">使能 Display 类型的 Device Class 驱动,并且在 Composite Device
中使能相应配置:<pre class="+ topic/pre pr-d/codeblock pre codeblock language-c" id="usb_display_config_addon__codeblock_ss2_2fd_b2c" data-ofbid="usb_display_config_addon__codeblock_ss2_2fd_b2c">&gt; Local packages options
&gt; Third-party packages options
[*] CherryUSB: tiny and portable USB host/device stack <strong class="hl-keyword">for</strong> embedded system with USB IP ---&gt;
[*] Enable usb device mode ---&gt;
[*] Enable usb hid device ---&gt;
[*] Enable usb display device ---&gt;
[*] Enable composite device ---&gt;
[*] Use Composite template
Composite Parameter ---&gt;
[*] USBDEV_DISP_COMPOSITE
[*] USBDEV_TOUCH_COMPOSITE</pre></div>
</li></ol></div>
</section><section class="- topic/section section" id="usb_display_config_addon__section_v23_ffd_b2c" data-ofbid="usb_display_config_addon__section_v23_ffd_b2c"><h2 class="- topic/title title sectiontitle">配置 USB Audio (UAC) </h2>
<div class="- topic/p p" data-ofbid="d242626e67__20250121171659">如需在 USB Display 产品中附带音频功能,则需要在 USB 复合设备中增加 UAC 功能。详细配置步骤如下所示:<ol class="- topic/ol ol" id="usb_display_config_addon__ol_uwg_gfd_b2c" data-ofbid="usb_display_config_addon__ol_uwg_gfd_b2c"><li class="- topic/li li" data-ofbid="d242626e70__20250121171659">
<p class="- topic/p p" data-ofbid="d242626e72__20250121171659">确保正确配置 TP触摸屏参数并且 TP 可在本地正常使用。</p>
<p class="- topic/p p" data-ofbid="d242626e75__20250121171659">关于 TP 的详细配置说明,可查看 <a class="- topic/xref xref" href="../peripheral/touch.html">CTP 移植指南</a></p>
</li><li class="- topic/li li" data-ofbid="d242626e82__20250121171659">在 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_addon__codeblock_s1h_rsd_c2c" data-ofbid="usb_display_config_addon__codeblock_s1h_rsd_c2c">scons menuconfig</pre></li><li class="- topic/li li" data-ofbid="d242626e86__20250121171659">
<div class="- topic/p p" data-ofbid="d242626e88__20250121171659">使能 CherryUSB 中 HID TP 类型的 Device Class
驱动,并且使能对应实例模板。<pre class="+ topic/pre pr-d/codeblock pre codeblock language-c" id="usb_display_config_addon__codeblock_vwg_gfd_b2c" data-ofbid="usb_display_config_addon__codeblock_vwg_gfd_b2c">&gt; Local packages options
&gt; Third-party packages options
[*] CherryUSB: tiny and portable USB host/device stack <strong class="hl-keyword">for</strong> embedded system with USB IP ---&gt;
[*] Enable usb device mode ---&gt;
[*] Enable usb hid device ---&gt;
Use hid template (touch) ---&gt;
Hid Touch Parameter ---&gt;</pre></div>
</li><li class="- topic/li li" data-ofbid="d242626e93__20250121171659">
<div class="- topic/p p" data-ofbid="d242626e95__20250121171659">使能 Display 类型的 Device Class
驱动:<pre class="+ topic/pre pr-d/codeblock pre codeblock language-c" id="usb_display_config_addon__codeblock_wwg_gfd_b2c" data-ofbid="usb_display_config_addon__codeblock_wwg_gfd_b2c">&gt; Local packages options
&gt; Third-party packages options
[*] CherryUSB: tiny and portable USB host/device stack <strong class="hl-keyword">for</strong> embedded system with USB IP ---&gt;
[*] Enable usb device mode ---&gt;
[*] Enable usb hid device ---&gt;
[*] Enable usb display device ---&gt;</pre></div>
</li><li class="- topic/li li" data-ofbid="d242626e100__20250121171659">
<div class="- topic/p p" data-ofbid="d242626e102__20250121171659"><code class="+ topic/ph pr-d/codeph ph codeph">Enable composite device</code> 中使能下列配置,添加一个
<code class="+ topic/ph pr-d/codeph ph codeph">DISPLAY</code> + <code class="+ topic/ph pr-d/codeph ph codeph">TP HID</code> 的 USB
复合设备:<pre class="+ topic/pre pr-d/codeblock pre codeblock language-c" id="usb_display_config_addon__codeblock_e1q_vsd_c2c" data-ofbid="usb_display_config_addon__codeblock_e1q_vsd_c2c">&gt; Local packages options
&gt; Third-party packages options
[*] CherryUSB: tiny and portable USB host/device stack <strong class="hl-keyword">for</strong> embedded system with USB IP ---&gt;
[*] Enable usb device mode ---&gt;
[*] Enable usb hid device ---&gt;
[*] Enable usb display device ---&gt;
[*] Enable composite device ---&gt;
Composite Parameter ---&gt;
[*] USBDEV_DISP_COMPOSITE
[*] USBDEV_TOUCH_COMPOSITE</pre></div>
</li><li class="- topic/li li" data-ofbid="d242626e116__20250121171659">
<div class="- topic/p p" data-ofbid="d242626e118__20250121171659">配置完成后,可按照以下方式在不同操作系统中使用 UAC 功能:<ul class="- topic/ul ul" id="usb_display_config_addon__ul_dcf_mdg_c2c" data-ofbid="usb_display_config_addon__ul_dcf_mdg_c2c"><li class="- topic/li li" data-ofbid="d242626e121__20250121171659">
<p class="- topic/p p" data-ofbid="d242626e123__20250121171659">对于 Windows 系统,在 PC 设备的扬声器下拉菜单中,选择<span class="+ topic/ph ui-d/uicontrol ph uicontrol">扬声器(ArtInChip USB
Device)</span></p>
<br/><div class="imagecenter"><img class="- topic/image image imagecenter" id="usb_display_config_addon__image_g5n_qdg_c2c" src="../../../images/usb-display/uac_windows.png" width="288"/></div><br/>
</li><li class="- topic/li li" data-ofbid="d242626e131__20250121171659">
<div class="- topic/p p" data-ofbid="d242626e133__20250121171659">对于 Linux 系统:<ol class="- topic/ol ol" type="a" id="usb_display_config_addon__ol_myq_sdg_c2c" data-ofbid="usb_display_config_addon__ol_myq_sdg_c2c"><li class="- topic/li li" data-ofbid="d242626e136__20250121171659">
<p class="- topic/p p" data-ofbid="d242626e138__20250121171659">在电脑桌面上,找到音量图标<img class="- topic/image image" id="usb_display_config_addon__image_c1m_12g_c2c" src="../../../images/usb-display/uac_linux_volume_symbol.png"/> 后,点击鼠标右键。</p>
</li><li class="- topic/li li" data-ofbid="d242626e143__20250121171659">
<div class="- topic/p p" data-ofbid="d242626e145__20250121171659">在弹出的菜单栏中,选择<span class="+ topic/ph ui-d/uicontrol ph uicontrol"> ArtInChip USB
Device</span> <span class="+ topic/ph ui-d/uicontrol ph uicontrol">
<br/><div class="imagecenter"><img class="- topic/image image imagecenter" id="usb_display_config_addon__image_sft_vdg_c2c" src="../../../images/usb-display/uac_linux.png" width="288"/></div><br/>
</span></div>
</li></ol></div>
</li></ul></div>
</li></ol></div>
</section><section class="- topic/section section" id="usb_display_config_addon__section_ezq_ttd_c2c" data-ofbid="usb_display_config_addon__section_ezq_ttd_c2c"><h2 class="- topic/title title sectiontitle">配置 USB MSC (U 盘) </h2>
<p class="- topic/p p" data-ofbid="d242626e164__20250121171659">如果 USB Display 产品需要附带 U 盘安装功能,需要在 USB 复合设备中增加一个 MSC 功能。</p>
<div class="- topic/p p" data-ofbid="d242626e167__20250121171659">在增加 MSC 功能后,当设备插入 PC 设备时:<ul class="- topic/ul ul" id="usb_display_config_addon__ul_pgm_xtd_c2c" data-ofbid="usb_display_config_addon__ul_pgm_xtd_c2c"><li class="- topic/li li" data-ofbid="d242626e170__20250121171659">
<p class="- topic/p p" data-ofbid="d242626e172__20250121171659">如果 PC 没有安装驱动,设备会自动模拟出一个 U 盘,存储 PC 驱动安装包。</p>
</li><li class="- topic/li li" data-ofbid="d242626e175__20250121171659">
<p class="- topic/p p" data-ofbid="d242626e177__20250121171659">当用户安装完驱动程序后, U 盘又会自动消失。</p>
</li></ul></div>
<p class="- topic/p p" data-ofbid="d242626e181__20250121171659">关于驱动的安装流程,可查看 <a class="- topic/xref xref" href="../app/usb-display-install-drive.html">安装驱动</a></p>
<div class="- topic/p p" data-ofbid="d242626e188__20250121171659">MSC 功能详细配置流程如下:<ol class="- topic/ol ol" id="usb_display_config_addon__ol_o5n_f5d_c2c" data-ofbid="usb_display_config_addon__ol_o5n_f5d_c2c"><li class="- topic/li li" data-ofbid="d242626e191__20250121171659">在 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_addon__codeblock_q3g_z5d_c2c" data-ofbid="usb_display_config_addon__codeblock_q3g_z5d_c2c">scons menuconfig</pre></li><li class="- topic/li li" data-ofbid="d242626e195__20250121171659">
<div class="- topic/p p" data-ofbid="d242626e197__20250121171659">配置 <code class="+ topic/ph pr-d/codeph ph codeph">/rodata</code>
分区。<pre class="+ topic/pre pr-d/codeblock pre codeblock language-c" id="usb_display_config_addon__codeblock_cvl_h5d_c2c" data-ofbid="usb_display_config_addon__codeblock_cvl_h5d_c2c">&gt; Application options ---&gt;
[*] Using File System Image <span class="hl-number">0</span> ---&gt;
Select File System Type (FATFS) ---&gt;
(packages/third-party/cherryusb/tools/aic_usbdisplay/) Data Directory
(rodata.fatfs) Image Name
[*] <strong class="hl-keyword">auto</strong> calcuate image size</pre></div>
<div class="- topic/p p" data-ofbid="d242626e205__20250121171659">MSC 功能的核心是将本地存储分区 <code class="+ topic/ph pr-d/codeph ph codeph">/rodata</code> 挂载成 USB MSC 设备,因此必须优先配置
<code class="+ topic/ph pr-d/codeph ph codeph">/rodata</code> 分区。<div class="table-container"><table class="- topic/table table frame-all" id="usb_display_config_addon__table_uqh_j5d_c2c" data-ofbid="usb_display_config_addon__table_uqh_j5d_c2c" data-cols="2"><caption class="- topic/title title tablecap" data-caption-side="top" data-is-repeated="true"><span class="table--title-label"><span class="table--title-label-number"> 1</span><span class="table--title-label-punctuation">. </span></span><span class="table--title">参数描述</span></caption><colgroup><col style="width:37.453183520599254%"/><col style="width:62.546816479400746%"/></colgroup><thead class="- topic/thead thead"><tr class="- topic/row"><th class="- topic/entry entry colsep-1 rowsep-1" id="usb_display_config_addon__table_uqh_j5d_c2c__entry__1">参数</th><th class="- topic/entry entry colsep-0 rowsep-1" id="usb_display_config_addon__table_uqh_j5d_c2c__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_addon__table_uqh_j5d_c2c__entry__1"><code class="+ topic/ph pr-d/codeph ph codeph">Using File System Image
0</code></td><td class="- topic/entry entry colsep-0 rowsep-1" headers="usb_display_config_addon__table_uqh_j5d_c2c__entry__2">配置文件系统镜像格式。</td></tr><tr class="- topic/row"><td class="- topic/entry entry colsep-1 rowsep-1" headers="usb_display_config_addon__table_uqh_j5d_c2c__entry__1"><code class="+ topic/ph pr-d/codeph ph codeph">Select File System Type</code></td><td class="- topic/entry entry colsep-0 rowsep-1" headers="usb_display_config_addon__table_uqh_j5d_c2c__entry__2">选择分区格式,如选择 FATFS则系统显示 <code class="+ topic/ph pr-d/codeph ph codeph">Select File System
Type (FATFS)</code></td></tr><tr class="- topic/row"><td class="- topic/entry entry colsep-1 rowsep-1" headers="usb_display_config_addon__table_uqh_j5d_c2c__entry__1"><code class="+ topic/ph pr-d/codeph ph codeph">(packages/third-party/cherryusb/tools/aic_usbdisplay/)
Data Directory</code></td><td class="- topic/entry entry colsep-0 rowsep-1" headers="usb_display_config_addon__table_uqh_j5d_c2c__entry__2">打包的文件夹,示例目录为
<span class="+ topic/ph sw-d/filepath ph filepath">(packages/third-party/cherryusb/tools/aic_usbdisplay/)
Data Directory</span>,用于存放驱动安装包文件。</td></tr><tr class="- topic/row"><td class="- topic/entry entry colsep-1 rowsep-1" headers="usb_display_config_addon__table_uqh_j5d_c2c__entry__1"><code class="+ topic/ph pr-d/codeph ph codeph">(rodata.fatfs) Image
Name</code></td><td class="- topic/entry entry colsep-0 rowsep-1" headers="usb_display_config_addon__table_uqh_j5d_c2c__entry__2">映像名为 <code class="+ topic/ph pr-d/codeph ph codeph">rodata.fatfs</code></td></tr><tr class="- topic/row"><td class="- topic/entry entry colsep-1 rowsep-0" headers="usb_display_config_addon__table_uqh_j5d_c2c__entry__1"><code class="+ topic/ph pr-d/codeph ph codeph">auto calcuate image size</code></td><td class="- topic/entry entry colsep-0 rowsep-0" headers="usb_display_config_addon__table_uqh_j5d_c2c__entry__2">自动计算镜像尺寸。</td></tr></tbody></table></div></div>
</li><li class="- topic/li li" data-ofbid="d242626e265__20250121171659">
<div class="- topic/p p" data-ofbid="d242626e267__20250121171659">在 menuconfig 中使能 CherryUSB 中 Audio 类型的 Device Class
驱动,并且使能对应实例模板:<pre class="+ topic/pre pr-d/codeblock pre codeblock language-c" id="usb_display_config_addon__codeblock_xwr_1vd_c2c" data-ofbid="usb_display_config_addon__codeblock_xwr_1vd_c2c">&gt; Local packages options
&gt; Third-party packages options
[*] CherryUSB: tiny and portable USB host/device stack <strong class="hl-keyword">for</strong> embedded system with USB IP ---&gt;
[*] Enable usb device mode ---&gt;
[*] Enable usb msc device ---&gt;
Use ram or storage template (msc storage) ---&gt;
MSC Storage Parameter ---&gt;
[*] USBDEV_MSC_THREAD
[*] USBD_MSC_STORAGE_USING_HOTPLUG
(/rodata) MSC_STORAGE_PATH
(<span class="hl-number">204800</span>) USBDEV_MSC_MAX_BUFSIZE</pre></div>
<div class="- topic/p p" data-ofbid="d242626e272__20250121171659">
<div class="table-container"><table class="- topic/table table frame-all" id="usb_display_config_addon__table_j45_lxd_c2c" data-ofbid="usb_display_config_addon__table_j45_lxd_c2c" data-cols="2"><caption class="- topic/title title tablecap" data-caption-side="top" data-is-repeated="true"><span class="table--title-label"><span class="table--title-label-number"> 2</span><span class="table--title-label-punctuation">. </span></span><span class="table--title">参数描述</span></caption><colgroup><col style="width:36.90036900369004%"/><col style="width:63.09963099630996%"/></colgroup><thead class="- topic/thead thead"><tr class="- topic/row"><th class="- topic/entry entry colsep-1 rowsep-1" id="usb_display_config_addon__table_j45_lxd_c2c__entry__1">参数</th><th class="- topic/entry entry colsep-0 rowsep-1" id="usb_display_config_addon__table_j45_lxd_c2c__entry__2">描述</th></tr></thead><tbody class="- topic/tbody tbody"><tr class="- topic/row"><td class="- topic/entry entry colsep-1 rowsep-0" headers="usb_display_config_addon__table_j45_lxd_c2c__entry__1"><code class="+ topic/ph pr-d/codeph ph codeph">(/rodata)
MSC_STORAGE_PATH</code></td><td class="- topic/entry entry colsep-0 rowsep-0" headers="usb_display_config_addon__table_j45_lxd_c2c__entry__2">设置 USB MSC 挂载分区为 <code class="+ topic/ph pr-d/codeph ph codeph">/rodata</code>
</td></tr></tbody></table></div>
</div>
</li><li class="- topic/li li" data-ofbid="d242626e298__20250121171659">
<div class="- topic/p p" data-ofbid="d242626e300__20250121171659">使能 Display 类型的 Device Class 驱动,并且在 Composite Device
中使能相应配置。<pre class="+ topic/pre pr-d/codeblock pre codeblock language-c" id="usb_display_config_addon__codeblock_ftt_4xd_c2c" data-ofbid="usb_display_config_addon__codeblock_ftt_4xd_c2c">&gt; Local packages options
&gt; Third-party packages options
[*] CherryUSB: tiny and portable USB host/device stack <strong class="hl-keyword">for</strong> embedded system with USB IP ---&gt;
[*] Enable usb device mode ---&gt;
[*] Dynamic registration mode ---&gt;
[*] Use AIC USB Display dynamic registration
[*] Enable usb hid device ---&gt;
[*] Enable usb msc device ---&gt;
[*] Enable usb audio device ---&gt;
[*] Enable usb display device ---&gt;
-*- Enable composite device ---&gt;</pre></div>
<p class="- topic/p p" data-ofbid="d242626e305__20250121171659">MSC 需要动态的添加和删除,因此复合设备的配置方法略有不同。如上所示,添加了一个 <code class="+ topic/ph pr-d/codeph ph codeph">DISPLAY</code> +
<code class="+ topic/ph pr-d/codeph ph codeph">TP HID</code> + <code class="+ topic/ph pr-d/codeph ph codeph">UAC</code> +
<code class="+ topic/ph pr-d/codeph ph codeph">MSC</code> 的 USB 复合设备,且 <code class="+ topic/ph pr-d/codeph ph codeph">MSC</code>
会根据驱动安装情况动态出现。</p>
</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="#usb_display_config_addon__section_bts_h2d_b2c" data-tocid="usb_display_config_addon__section_bts_h2d_b2c">配置 USB HID TP </a></div></li><li class="section-item"><div class="section-title"><a href="#usb_display_config_addon__section_v23_ffd_b2c" data-tocid="usb_display_config_addon__section_v23_ffd_b2c">配置 USB Audio (UAC) </a></div></li><li class="section-item"><div class="section-title"><a href="#usb_display_config_addon__section_ezq_ttd_c2c" data-tocid="usb_display_config_addon__section_ezq_ttd_c2c">配置 USB MSC (U 盘) </a></div></li></ul></div>
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