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<head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8"/><meta name="viewport" content="width=device-width, initial-scale=1.0"/><meta http-equiv="X-UA-Compatible" content="IE=edge"/><meta name="description" content="USB Device 调试 查看 USB 设备当单板充当 USB Device 连接到 PC 主机 USB Host 端口时，可以在主机上查看 USB 设备有没有成功被枚举： Linux 主机，可以通过 lsusb 命令进行查看。 Windows 主机，可以通过 设备管理器 命令进行查看： Sysfs 节点 在单板上也可以通过 /sys/kernel/debug/usb/xxxx.usb/ ..."/><meta name="DC.rights.owner" content="(C) 版权 2025"/><meta name="copyright" content="(C) 版权 2025"/><meta name="generator" content="DITA-OT"/><meta name="DC.type" content="concept"/><meta name="DC.contributor" content="yan.wang"/><meta name="DC.date.modified" content="2024-12-24"/><meta name="DC.format" content="HTML5"/><meta name="DC.identifier" content="usb_debug_guide"/><meta name="DC.language" content="zh-CN"/><title>调试指南</title><!-- Build number 2023110923. --><meta name="wh-path2root" content="../../../"/><meta name="wh-toc-id" content=""/><meta name="wh-source-relpath" content="topics/sdk/usb/usb-debug_guide.dita"/><meta name="wh-out-relpath" content="topics/sdk/usb/usb-debug_guide.html"/>
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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/usb/usb-debug_guide.dita">Edit online</a></span><h1 class="- topic/title title topictitle1" id="ariaid-title1">调试指南</h1><div class="date inPage">24 Dec 2024</div><div style="color: gray;">
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Read time: 1 minute(s)
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</div><div class="- topic/body concept/conbody body conbody"><section class="- topic/section section" id="usb_debug_guide__section_lfw_v3z_21c" data-ofbid="usb_debug_guide__section_lfw_v3z_21c"><h2 class="- topic/title title sectiontitle">USB Device 调试</h2>
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<div class="- topic/p p" data-ofbid="d312476e27__20250121171816">
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<ol class="- topic/ol ol" id="usb_debug_guide__ol_rkw_gjz_21c" data-ofbid="usb_debug_guide__ol_rkw_gjz_21c"><li class="- topic/li li" data-ofbid="d312476e30__20250121171816">查看 USB 设备当单板充当 USB Device 连接到 PC 主机 USB Host 端口时，可以在主机上查看 USB 设备有没有成功被枚举：<ul class="- topic/ul ul" id="usb_debug_guide__ul_mfw_v3z_21c" data-ofbid="usb_debug_guide__ul_mfw_v3z_21c"><li class="- topic/li li" data-ofbid="d312476e33__20250121171816">
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<p class="- topic/p p" data-ofbid="d312476e35__20250121171816">Linux 主机，可以通过 <span class="+ topic/keyword sw-d/cmdname keyword cmdname">lsusb</span> 命令进行查看。</p>
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</li><li class="- topic/li li" data-ofbid="d312476e41__20250121171816">
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<p class="- topic/p p" data-ofbid="d312476e43__20250121171816">Windows 主机，可以通过<span class="+ topic/ph ui-d/uicontrol ph uicontrol">设备管理器</span>命令进行查看：</p>
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<blockquote class="- topic/lq lq" id="usb_debug_guide__lq_nfw_v3z_21c" data-ofbid="usb_debug_guide__lq_nfw_v3z_21c">
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<div class="- topic/p p" data-ofbid="d312476e51__20250121171816"><br/><div class="imagecenter"><img class="- topic/image image imagecenter" id="usb_debug_guide__image_ofw_v3z_21c" src="../../../images/usb/usb_debug_dev_manager.png" width="576" alt="image2"/></div><br/></div>
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</blockquote>
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</li></ul></li><li class="- topic/li li" data-ofbid="d312476e57__20250121171816">Sysfs 节点<div class="- topic/p p" data-ofbid="d312476e59__20250121171816">在单板上也可以通过 <span class="+ topic/ph sw-d/filepath ph filepath">/sys/kernel/debug/usb/xxxx.usb/</span> 文件夹下的文件节点，对 UDC
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驱动进行配置：<pre class="+ topic/pre pr-d/codeblock pre codeblock language-c" id="usb_debug_guide__codeblock_jf3_3jz_21c" data-ofbid="usb_debug_guide__codeblock_jf3_3jz_21c">ls /sys/class/udc</pre><pre class="+ topic/pre pr-d/codeblock pre codeblock language-c" id="usb_debug_guide__codeblock_g4z_kds_5dc" data-ofbid="usb_debug_guide__codeblock_g4z_kds_5dc"><span class="hl-number">10200000.u</span>sb</pre><pre class="+ topic/pre pr-d/codeblock pre codeblock language-c" id="usb_debug_guide__codeblock_gn2_lds_5dc" data-ofbid="usb_debug_guide__codeblock_gn2_lds_5dc">ls /sys/kernel/debug/usb/<span class="hl-number">10200000.u</span>sb/</pre><pre class="+ topic/pre pr-d/codeblock pre codeblock language-c" id="usb_debug_guide__codeblock_rlk_lds_5dc" data-ofbid="usb_debug_guide__codeblock_rlk_lds_5dc">dr_mode ep1out ep3in ep4out params testmode
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ep0 ep2in ep3out fifo regdump
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ep1in ep2out ep4in hw_params state</pre></div><div class="- topic/p p" data-ofbid="d312476e72__20250121171816">例如可以 dump
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寄存器：<pre class="+ topic/pre pr-d/codeblock pre codeblock language-c" id="usb_debug_guide__codeblock_lbd_jjz_21c" data-ofbid="usb_debug_guide__codeblock_lbd_jjz_21c">cat /sys/kernel/debug/usb/<span class="hl-number">10200000.u</span>sb/regdump</pre><pre class="+ topic/pre pr-d/codeblock pre codeblock language-c" id="usb_debug_guide__codeblock_evw_lds_5dc" data-ofbid="usb_debug_guide__codeblock_evw_lds_5dc">GOTGCTL = <span class="hl-number">0x00000000</span>
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GOTGINT = <span class="hl-number">0x00000000</span>
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GAHBCFG = <span class="hl-number">0x00000000</span>
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GUSBCFG = <span class="hl-number">0x00000000</span>
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GRSTCTL = <span class="hl-number">0x00000000</span>
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GINTSTS = <span class="hl-number">0x00000000</span>
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GINTMSK = <span class="hl-number">0x00000000</span>
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GRXSTSR = <span class="hl-number">0x00000000</span>
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GRXFSIZ = <span class="hl-number">0x00000000</span>
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GNPTXFSIZ = <span class="hl-number">0x00000000</span>
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GNPTXSTS = <span class="hl-number">0x00000000</span></pre></div></li><li class="- topic/li li" data-ofbid="d312476e78__20250121171816">抓包工具<p class="- topic/p p" data-ofbid="d312476e80__20250121171816">和 USB Host 调试一样，抓包可以使用专门的 USB 总线分析仪或者在 Linux 主机上使用 usbmon
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进行抓包。</p></li></ol>
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</section></div></article></main></div>
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Update Time: 2025-01-21
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