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MSP432P401R: 板子的芯片和仿真芯片发烫严重

Part Number: MSP432P401R

求助各位工程师:

单片机芯片和仿真器芯片上电后1到2s就会迅速升温,USB接口处温度也十分高,程序能正常运转但整个板子就会非常烫,甚至直接烧坏芯片。请问这具体是什么原因?谢谢。