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如果你想在睡眠的时候通过串口唤醒或者你想知道怎么睡眠唤醒,请看这~ 1、FR309x/FR509x有两只低功耗模式, 第一种就是sleep模式这种模式配置好io就能唤醒,唤醒不会复位 第二张 Power off 这种功耗更低,30ua左右,唤醒会复位
最最重要的一步就是编译器优化等级修改为O2