我用的MCU是MSP430F5359,UCOS ii操作系统，最近老出现系统死机问题，调试时发现每次死机时都是PC指针都是在地址4，MSP430中地址4是无效的CODE地址，检查C代码也看不出什么问题，求教！发现出现这个问题时有一定的规律：系统循环多次（一般是两百以上）地执行某一段代码时容易出现这一问题，把循环次数减少这个问题看似可以解决。
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