This thread has been locked.

If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.

将GPIO设置为输入,不管怎么读取都是高电平,将引脚接地显示的也是高电平,通过IN_DATA寄存器观察到的值一直是1,请问哪里出问题了?

非常需要你的帮助,这个问题已经困扰我好长时间了,引脚都是默认设置为上拉,但是接低电平没道理还是显示1啊,请帮我解决这个问题,谢谢了