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我自己遵照参考画的pcb，可以debug但是不能用uniflash下载代码，uniflash打印的log如下图：
我的电路图如下，我用的是四层板画的这是我的PCB截图
你的com 口对吗，你在设备管理器里面看看，还有SOP。
no usb ports were found.....转接器没工作？
BR.AZ
