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请问什么是DCO旁路模式,另外是否进入旁路模式DCO就启用内部电阻?
DCO旁路模式是指使用外部的时钟源接入XIN或者CLKIN,旁路掉DCO。此时,ACLK频率是不可以被编程的,且固定在旁路时钟频率除以512。
我记得旁路模式默认是使用内部电阻,具体我忘了,你可以翻翻datasheet