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程序运行到如图所示就停了,HIB管脚MCU是直接接了地GND的,请问是否跟这个有关系?
HIB是个输出引脚,官方推荐是悬空的。所以,这个引脚的状态是无法读取的,所以,应该对这句程序没有影响,但还是最好悬空,因为你把一个输出引脚强制拉低了,是否可以造成逻辑冲突,也不清楚。