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EVMK2H上显示soc power failure

大家好!我想使用EVMK2H 在linux下进行开发,刚开始使用时可以PC机可以和EVMK2H 板的两个串口正常通信,可是最近出现

1.串口3打不开了,串口4可以正常通信,以至于我无法对开发板的linux内核操作,同时EVMK2H上显示soc power failure,打开mcu的串口也会打印“ SOC_POWER_GOOD signal has de-asserted. Shutting down soc power”这样的信息,

2.在ccs中lauch .ccxml正常,connect target 时会报target供电不足,不知道是不是和上一个问题是不是一个原因

还望大神赐教!