大家好：
现在有这么一个场景，需要Compareter B触发中断之后，将Compareter B所采集的引脚切换为普通输入引脚，然后定时轮询输入引脚的电平。但是发现一旦初始化Compareter B的寄存器之后，无论怎样处理，都到的输入引脚电平一直为高。具体应该怎么处理就可以切换为普通输入引脚？请指教。
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