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MSP430F5529 LaunchPad芯片发热和供电问题

Other Parts Discussed in Thread: MSP430F5529, MSP430F5528

使用MSP430F5529 LaunchPad时不小心将板子右下角GND和3.3v短路,电脑提示USB过流。之后板子可以正常使用,但是主控芯片发热严重烫手。不敢长时间供电。

供电电压采用电脑USB或者3.3V都发热。

请问这是哪里的问题,是主控芯片烧坏了么,给板子换个芯片可以么