关于bmcu(efm8sb10f2g)的功能?

您好,请问这部分电路的功能是什么,怎样理解这电路
谢谢!

I will forward to internal team to give some updates, Plese stay tuned. Thanks

Which signal do you mean? It is for DC Jack unplug detection. You can get the logic setting by the circuit.

为什么要做DC插孔拔出检测?

For protecting system.

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