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用单片机的管脚给传感器供电,在低功耗模式下,管脚还有输出吗
直接用单片机电源也可以,管脚有没有输出直接进入低功耗后实测一下不就知道了。
应该是有的,进入低功耗后设置的寄存器还保留着之前设置的状态。
你好!
LPM0-LPM4 GPIO的状态是保持的,
只有在LPM3.5,LPM4.5下IO状态会丢失。