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    t133使用USB1做host插入U盘不能挂载磁盘

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    • J
      Jacky502 LV 4 last edited by

      t133使用usb1挂载U盘失败,插入打印是7dc3c4a8-aa23-4b89-9e06-e34e290e1ece-image.png des中的配置是c03b139c-a946-448e-8893-4d4a5da0b2a0-image.png

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      • W
        whycan晕哥 LV 8 @Jacky502 last edited by

        @jacky502
        看起来是usb硬件问题,是自己做的板子吗?

        J 1 Reply Last reply Reply Quote Share 0
        • J
          Jacky502 LV 4 @whycan last edited by

          @whycan 是的,自己做的板子,请教下要如何修改呢?

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          • W
            whycan晕哥 LV 8 @Jacky502 last edited by

            @jacky502
            看起来得检查硬件电路了,USB信号完整性有问题?

            J 2 Replies Last reply Reply Quote Share 0
            • J
              Jacky502 LV 4 @whycan last edited by

              @whycan 我看别的案子跟这个现象差不多,说在3.3v处加个偶电容,不知道可以不!

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              • Y
                YterAA LV 5 last edited by

                使用 otg_ed_test 测试一下眼图
                先 find /sys/ -name otg_ed_test 找一下路径,然后echo test_pack > otg_ed_test

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                • J
                  Jacky502 LV 4 @YterAA last edited by

                  @yteraa 按照你的方法没啥反应,同时U盘在初始化不过之后电源都关闭了,因为我看到插进去的时候U盘灯亮,初始化完了就灭了,然后按照你说的做眼图没啥反应

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                  • Y
                    YterAA LV 5 @Jacky502 last edited by

                    @jacky502 可以看一下USB的PCB走线吗

                    J 2 Replies Last reply Reply Quote Share 1
                    • J
                      Jacky502 LV 4 @whycan last edited by

                      @whycan USB就几根线,会不会是内核哪里配置没有配置上呢?

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                        Jacky502 LV 4 @YterAA last edited by

                        This post is deleted!
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                        • J
                          Jacky502 LV 4 @YterAA last edited by

                          @yteraa 微信图片_20220624133439.png 微信图片_20220624133447.png

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