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< div class = " wh_publication_toc " data-tooltip-position = "right" > < span class = "expand-button-action-labels" > < span id = "button-expand-action" role = "button" aria-label = "Expand" > < / span > < span id = "button-collapse-action" role = "button" aria-label = "Collapse" > < / span > < span id = "button-pending-action" role = "button" aria-label = "Pending" > < / span > < / span > < ul role = "tree" aria-label = "Table of Contents" > < li role = "treeitem" > < div data-tocid = "revinfo_linux-d3752e463" class = "topicref" data-id = "revinfo_linux" data-state = "leaf" > < span role = "button" class = "wh-expand-btn" > < / span > < div class = "title" > < a href = "../../../topics/revinfo/revinfo_rtos.html" id = "revinfo_linux-d3752e463-link" > 修订记录< / a > < / div > < / div > < / li > < li role = "treeitem" aria-expanded = "false" > < div data-tocid = "id-d3752e480" class = "topicref" data-id = "id" data-state = "not-ready" > < span role = "button" tabindex = "0" aria-labelledby = "button-expand-action id-d3752e480-link" class = "wh-expand-btn" > < / span > < div class = "title" > < a href = "../../../topics/sdk/env/sdk-compile.html" id = "id-d3752e480-link" > SDK 编译< / a > < div class = "wh-tooltip" > < p class = "shortdesc" > 介绍不同编译环境下 SDK 的详细编译流程。< / p > < / div > < / div > < / div > < / li > < li role = "treeitem" aria-expanded = "false" > < div data-tocid = "id-d3752e604" class = "topicref" data-id = "id" data-state = "not-ready" > < span role = "button" tabindex = "0" aria-labelledby = "button-expand-action id-d3752e604-link" class = "wh-expand-btn" > < / span > < div class = "title" > < a href = "../../../topics/sdk/advanced/sdk-usage.html" id = "id-d3752e604-link" > 使用指南< / a > < div class = "wh-tooltip" > < p class = "shortdesc" > 命令详解，编译选项，镜像和分区配置，添加应用和驱动等的详细使用说明。< / p > < / div > < / div > < / div > < / li > < li role = "treeitem" aria-expanded = "true" > < div data-tocid = "concept_rcx_czh_pzb-d3752e1004" class = "topicref" data-id = "concept_rcx_czh_pzb" data-state = "expanded" > < span role = "button" tabindex = "0" aria-labelledby = "button-collapse-action concept_rcx_czh_pzb-d3752e1004-link" class = "wh-expand-btn" > < / span > < div class = "title" > < a href = "../../../topics/sdk/chapter-app.html" id = "concept_rcx_czh_pzb-d3752e1004-link" > 应用场景< / a > < div class = "wh-tooltip" > < p class = "shortdesc" > 描述了 SDK 在不同应用场景中的配置和使用， < / p > < / div > < / div > < / div > < ul role = "group" class = "navbar-nav nav-list" > < li role = "treeitem" > < div data-tocid = "id-d3752e1021" class = "topicref" data-id = "id" data-state = "leaf" > < span role = "button" class = "wh-expand-btn" > < / span > < div class = "title" > < a href = "../../../topics/sdk/usb/udisk.html" id = "id-d3752e1021-link" > 挂载 U 盘 < / a > < / div > < / div > < / li > < li role = "treeitem" > < div data-tocid = "id-d3752e1035" class = "topicref" data-id = "id" data-state = "leaf" > < span role = "button" class = "wh-expand-btn" > < / span > < div class = "title" > < a href = "../../../topics/sdk/sdmc/sdcard.html" id = "id-d3752e1035-link" > 挂载 SD 卡< / a > < / div > < / div > < / li > < li role = "treeitem" aria-expanded = "false" > < div data-tocid = "id-d3752e1049" class = "topicref" data-id = "id" data-state = "not-ready" > < span role = "button" tabindex = "0" aria-labelledby = "button-expand-action id-d3752e1049-link" class = "wh-expand-btn" > < / span > < div class = "title" > < a href = "../../../topics/sdk/burnsys/burnsys_user_guide.html" id = "id-d3752e1049-link" > 系统更新< / a > < / div > < / div > < / li > < li role = "treeitem" aria-expanded = "false" > < div data-tocid = "id-d3752e1163" class = "topicref" data-id = "id" data-state = "not-ready" > < span role = "button" tabindex = "0" aria-labelledby = "button-expand-action id-d3752e1163-link" class = "wh-expand-btn" > < / span > < div class = "title" > < a href = "../../../topics/sdk/ota/ota_guide.html" id = "id-d3752e1163-link" > OTA 方案< / a > < / div > < / div > < / li > < li role = "treeitem" aria-expanded = "false" > < div data-tocid = "id-d3752e1283" class = "topicref" data-id = "id" data-state = "not-ready" > < span role = "button" tabindex = "0" aria-labelledby = "button-expand-action id-d3752e1283-link" class = "wh-expand-btn" > < / span > < div class = "title" > < a href = "../../../topics/sdk/xip/xip_user_guide.html" id = "id-d3752e1283-link" > XIP 方案 < / a > < / div > < / div > < / li > < li role = "treeitem" aria-expanded = "false" > < div dat
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< div class = "date inPage" > 16 May 2025< / div > < div style = "color: gray;" >
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Read time: 3 minute(s)
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< / div >
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< 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 = "d72974e33__20250519091510" > 配置 USB 设备功能和进行其它开发工作之前，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" >
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< li class = "- topic/li li" data-ofbid = "d72974e38__20250519091510" > 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 >
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< li class = "- topic/li li" data-ofbid = "d72974e43__20250519091510" >
< div class = "- topic/p p" data-ofbid = "d72974e45__20250519091510" > 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 >
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< / li >
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< li class = "- topic/li li" data-ofbid = "d72974e51__20250519091510" >
< div class = "- topic/p p" data-ofbid = "d72974e53__20250519091510" > 使能 CherryUSB 驱动，并使能 Device
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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 >
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< p class = "- topic/p p" data-ofbid = "d72974e58__20250519091510" > 完成上述配置后， < / p >
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< / 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 >
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< p class = "- topic/p p" data-ofbid = "d72974e69__20250519091510" > 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 = "d72974e80__20250519091510" > 除了 LCD 基础功能参数外， < ol class = "- topic/ol ol" data-ofbid = "d72974e82__20250519091510" >
< li class = "- topic/li li" data-ofbid = "d72974e84__20250519091510" > 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_kw1_ftc_b2c" data-ofbid = "usb_display_config__codeblock_kw1_ftc_b2c" > scons menuconfig< / pre > < / li >
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< li class = "- topic/li li" data-ofbid = "d72974e89__20250519091510" >
< div class = "- topic/p p" data-ofbid = "d72974e91__20250519091510" > 在 menuconfig 中的功能界面，使能 CherryUSB 和 USB Device
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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 >
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< div class = "- topic/p p" data-ofbid = "d72974e96__20250519091510" > 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
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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 >
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< 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" >
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< th class = "- topic/entry entry colsep-1 rowsep-1" id = "usb_display_config__table_wbp_w5c_b2c__entry__1" > < p class = "- topic/p p" data-ofbid = "d72974e119__20250519091510" > 参数< / p > < / th >
< th class = "- topic/entry entry colsep-0 rowsep-1" id = "usb_display_config__table_wbp_w5c_b2c__entry__2" > < p class = "- topic/p p" data-ofbid = "d72974e123__20250519091510" > 描述< / p > < / th >
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< / tr >
< / thead > < tbody class = "- topic/tbody tbody" >
< tr class = "- topic/row" >
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< td class = "- topic/entry entry colsep-1 rowsep-1" headers = "usb_display_config__table_wbp_w5c_b2c__entry__1" > < p class = "- topic/p p" data-ofbid = "d72974e133__20250519091510" > < code class = "+ topic/ph pr-d/codeph ph codeph" > Use display template< / code > < / p > < / 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 = "d72974e138__20250519091510" > 使能显示实例模板，必须使能。< / p > < / td >
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< / tr >
< tr class = "- topic/row" >
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< td class = "- topic/entry entry colsep-1 rowsep-1" headers = "usb_display_config__table_wbp_w5c_b2c__entry__1" > < p class = "- topic/p p" data-ofbid = "d72974e145__20250519091510" > < code class = "+ topic/ph pr-d/codeph ph codeph" > select USB coding format
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(AUTO)< / code > < / p > < / td >
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< td class = "- topic/entry entry colsep-0 rowsep-1" headers = "usb_display_config__table_wbp_w5c_b2c__entry__2" > < div class = "- topic/p p" data-ofbid = "d72974e150__20250519091510" > 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
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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
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( ) JPEG< / pre > < / div > < / td >
< / tr >
< tr class = "- topic/row" >
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< td class = "- topic/entry entry colsep-1 rowsep-1" headers = "usb_display_config__table_wbp_w5c_b2c__entry__1" > < p class = "- topic/p p" data-ofbid = "d72974e159__20250519091510" > < code class = "+ topic/ph pr-d/codeph ph codeph" > Using switch LCD on/off gpio
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(NEW)< / code > < / p > < / td >
< td class = "- topic/entry entry colsep-0 rowsep-1" headers = "usb_display_config__table_wbp_w5c_b2c__entry__2" >
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< p class = "- topic/p p" data-ofbid = "d72974e165__20250519091510" > 使用物理开关控制屏幕开关。< / p >
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< / td >
< / tr >
< tr class = "- topic/row" >
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< td class = "- topic/entry entry colsep-1 rowsep-1" headers = "usb_display_config__table_wbp_w5c_b2c__entry__1" > < p class = "- topic/p p" data-ofbid = "d72974e173__20250519091510" > < code class = "+ topic/ph pr-d/codeph ph codeph" > GPIO name(NEW)< / code > < / p > < / td >
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< td class = "- topic/entry entry colsep-0 rowsep-1" headers = "usb_display_config__table_wbp_w5c_b2c__entry__2" >
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< p class = "- topic/p p" data-ofbid = "d72974e179__20250519091510" > 开关对应的 GPIO 管脚以及控制的正负极性参数如下：< / p >
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< 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 >
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< / td >
< / tr >
< tr class = "- topic/row" >
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< td class = "- topic/entry entry colsep-1 rowsep-1" headers = "usb_display_config__table_wbp_w5c_b2c__entry__1" > < p class = "- topic/p p" data-ofbid = "d72974e190__20250519091510" >
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< code class = "+ topic/ph pr-d/codeph ph codeph" > Select switch mode< / code > < / p > < / td >
< td class = "- topic/entry entry colsep-0 rowsep-1" headers = "usb_display_config__table_wbp_w5c_b2c__entry__2" >
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< p class = "- topic/p p" data-ofbid = "d72974e197__20250519091510" > 选择开关模式< / p >
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< ul class = "- topic/ul ul" id = "usb_display_config__ul_sp2_4cd_b2c" data-ofbid = "usb_display_config__ul_sp2_4cd_b2c" >
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< li class = "- topic/li li" data-ofbid = "d72974e202__20250519091510" > < code class = "+ topic/ph pr-d/codeph ph codeph" > Select switch mode (Backlight
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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 >
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< li class = "- topic/li li" data-ofbid = "d72974e207__20250519091510" > < code class = "+ topic/ph pr-d/codeph ph codeph" > Select switch mode (USB Display
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Switch)< / code > ：
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USB Display 模式和 LVGL 本地模式。< / li >
< / ul >
< / td >
< / tr >
< tr class = "- topic/row" >
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< td class = "- topic/entry entry colsep-1 rowsep-1" headers = "usb_display_config__table_wbp_w5c_b2c__entry__1" > < p class = "- topic/p p" data-ofbid = "d72974e219__20250519091510" > < code class = "+ topic/ph pr-d/codeph ph codeph" > Default usb display disable
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(NEW)< / code > < / p > < / td >
< td class = "- topic/entry entry colsep-0 rowsep-1" headers = "usb_display_config__table_wbp_w5c_b2c__entry__2" >
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< p class = "- topic/p p" data-ofbid = "d72974e225__20250519091510" > 是否默认 Disable USB Display。< / p >
< div class = "- topic/p p" data-ofbid = "d72974e228__20250519091510" > 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 > );
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< strong class = "hl-keyword" > void< / strong > usb_display_disable(< strong class = "hl-keyword" > void< / strong > );< / pre > < / div >
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< / td >
< / tr >
< tr class = "- topic/row" >
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< td class = "- topic/entry entry colsep-1 rowsep-0" headers = "usb_display_config__table_wbp_w5c_b2c__entry__1" > < p class = "- topic/p p" data-ofbid = "d72974e238__20250519091510" > < code class = "+ topic/ph pr-d/codeph ph codeph" > Print FPS in-live< / code > < / p > < / 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 = "d72974e244__20250519091510" > 使能后，系统默认会在调试串口中打印 USB Display
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的实时
FPS， ： < 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 >
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Current FPS: < span class = "hl-number" > 59.0< / span > < / pre > < / div > < p class = "- topic/p p" data-ofbid = "d72974e248__20250519091510" > 在系统运行过程中，可以使用
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< 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
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FPS 打印。< / p > < / td >
< / tr >
< / tbody > < / table > < / div >
< / li >
< / ol > < / div >
< / section >
< / div >
< / article > < / main > < / div >
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< / div >
< nav role = "navigation" id = "wh_topic_toc" aria-label = "On this page" class = "col-lg-2 d-none d-lg-block navbar d-print-none" >
< div id = "wh_topic_toc_content" >
< 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 >
< / div >
< / nav >
< / div >
< / div >
< / div >
< footer class = "navbar navbar-default wh_footer" >
< div class = " footer-container mx-auto " >
< title > footer def< / title >
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< style >
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.p1 {
font-family: FangZhengShuSong, Times, serif;
}
.p2 {
font-family: Arial, Helvetica, sans-serif;
}
.p3 {
font-family: "Lucida Console", "Courier New", monospace;
}
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< / style >
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< div class = "webhelp.fragment.footer" >
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< p class = "p1" > Copyright © 2019-2025 广东匠芯创科技有限公司. All rights reserved.< / p >
< / div >
< div >
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< div class = "generation_time" >
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Update Time: 2025-05-19
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< / div >
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< / div >
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< / div >
< / footer >
< div id = "go2top" class = "d-print-none" >
< span class = "oxy-icon oxy-icon-up" > < / span >
< / div >
< div id = "modal_img_large" class = "modal" >
< span class = "close oxy-icon oxy-icon-remove" > < / span >
< div id = "modal_img_container" > < / div >
< div id = "caption" > < / div >
< / div >
< script src = "${pd}/publishing/publishing-styles-AIC-template/js/custom.js" defer = "defer" > < / script >
< / body >
< / html >
