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SIMPLELINK-MSP432-SDK: MSP432芯片工作异常

Part Number: SIMPLELINK-MSP432-SDK

MSP432P401R芯片

MSP EXP432P401R LaunchPad开发板(红色版本),MCU 3.3V供电引脚对GND短路,3.3V引脚对地阻值小于10Ω,工作时发热严重,输入电流超过100mA,但同时可以正常烧录程序(CCS IDE和KeilMDK均可),可以正常运行程序。已出现多例,可能是哪些原因导致的?有补救措施吗