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    D1s晶振不起振问题

    D1系列-RISC-V
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    • L
      litengos LV 4 last edited by

      按照D1s哪吒V1.1设计的板子，上电后PhoenixSuit设备不到USB设备烧录不了固件，测了芯片供电正常，但晶振不起振1673493788187.jpg

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      • whycan
        whycan晕哥 LV 9 last edited by

        检查PLL供电，复位电平，

        另外是怎么确定不起振的?

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        • L
          litengos LV 4 @whycan last edited by

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          • L
            litengos LV 4 @whycan last edited by

            @whycan 晶振旁边电容没电压，示波器测没波形。是不是不需要做任何boot 配置，内部有类似与bootloader的程序启动晶振

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            • whycan
              whycan晕哥 LV 9 @litengos last edited by

              @litengos
              复位电平正常吗?

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              • L
                litengos LV 4 @whycan last edited by

                @whycan 正常的，芯片背面没有接地有影响吗？

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                • whycan
                  whycan晕哥 LV 9 @litengos last edited by whycan

                  @litengos

                  肚子底下那一大块是芯片唯一的一个数字地，你说有没有影响？

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