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tms320f28035 TZ1,TZ2,TZ3 如何区分



硬件上有三个故障信号发生都关PWM。

硬件连接了TZ1,TZ2,TZ3管脚。

TZSEL中OSHT1, OSHT2,OSHT3都使能。

问题是TZFLG中只有一个OST发生了,我如何区分到底是由TZ1,TZ2,TZ3中那个引起的,好判断错误类型。