Thank you for your reply, LPM3 wakeup is from 1) port interrupts( my port interrupts(4) will happen every 20ms i.e, 20ms my device will be in LPM3 and 20ms in AM) 2) RTC interrupt(every 1 minute) I have disabled watch dog while entering LPM3, now my program is hanging their itself, it is not exiting from LPM3.
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