我将LPM3与LPM2、LPM3与LPM4进行切换？前八次都能切换成功，当切换到第九次时，就出现死机状态，可能是程序跑飞了？我查到datasheet有下面的解释，不知道是不是这个原因，下面这段话我也没看懂？求大神指教
2.2.6 Transition From LPM3 and LPM4 Modes to AM
The LDO requires time to settle when the application transitions from low-power modes to active modes. If
a transition from LPM3 or LPM4 occurs and the devices does not stay in active mode long enough, the
LDO does not have time to settle sufficiently. Circuitry inside the LDO ensures that the LDO has its
minimum required time to settle to its proper operating voltage. The circuitry ensures that every eighth
transition from LPM3 or LPM4 causes the LDO to remain on long enough to properly settle. This is
handled automatically and requires no setting by the application.