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MSP430F2418重启后卡死,不启动,有时按Reset键也没有反应,必须按第二下才可以



如图的2418工作图,现在单片机运行几天后就卡死了,不知道运行到哪里去了,也不重启,看门狗也设置了,也不起作用,有时候上电也会遇到卡死,必须按一下复位键才能启动,是什么原因,有工程师知道吗?