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我没有加电压
请问你配置的是什么芯片?有些芯片有内部上拉功能,如果你使能的话,就是高电平。
ERIC
您好!我用的是28069芯片
我关闭了上拉功能啊,然后有时会出现运行两句后面代码,寄存器的data值就改变一下的情况。
GpioCtrlRegs.GPAPUD.bit.GPIO8=1;这句代码就是取消上拉啊
correct!.