Mode:将其设置为GPIO Output。 Symbolic Name:为这个引脚起一个有意义的别名,例如LED1。这个名称后续会在代码中用到。 Initial Output Level:根据原理图,LED的阳极接3.3V,阴极通过电阻连接到MCU引脚。因此,当引脚输出低电平(Low)时,LED点亮;输出高电平(High)时 ...
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Adam Hayes, Ph.D., CFA, is a financial writer with 15+ years Wall Street experience as a derivatives trader. Besides his extensive derivative trading expertise, Adam is an expert in economics and ...