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.
我在调试28388开发板时,想通过ARM核来将GPIO引脚置高或置低,但是实际过程中,我将GPIO置高或者置低,从示波器观察该引脚并没有发生变化,请问为什么?并且在运行ARM核之前,已在CPU1中对GPIO进行了配置。
另:我在CPU1中将相同的GPIO引脚置高或者置低,可以在示波器中观察到该引脚的变化。