Hi Katie, Yes, so far I've been able to get the FR5969 to go into LPM3.5 low power mode. I use the RTC calendar mode to wake up some time in the future with the RTC alarm registers. I do have a need to also wake-up from an I/O pin (interrupt). I'm kind of curious how that will work since all the Digital I/O is in-operative with the main LDO turned off. I realize the I/O has interrupt capability, but since all the LDO's are off except the RTC LDO. How can the interrupt work if the main LDO is off? Also, the FRAM_Lib is a great help. I'm assuming this can be used for waking up via a port pin from LPM3.5. Thanks for checking in. ~Jim
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