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LAUNCHXL-CC3235S: Power Management Hibernate Expected Operation?

Gregory Lanier
Prodigy 230 points
Part Number: LAUNCHXL-CC3235S
Other Parts Discussed in Thread: CC3235S

Hey there,

I have been evaluating the CC3235S for use with a wireless system. I am currently looking at the Power Management example from the SDK, and I am a bit confused about the operation of the example.

I understand that GPIO wakeup is enabled for the hibernate mode of the demo, but I want to try and get the device to wakeup from Hibernate after a period of time has passed. I see the Power_shutdown() function (see platform.c, line 124) is being passed a time variable, but modifying this variable is not changing the operation of the example. For example, passing 5000 does not set the board in hibernation for 5000ms then wake up. It still only wakes up by GPIO.

Is there something I'm missing here that I need to modify? Do I need the change the shutdownState value being passed into the function (if so, where do I find what value to use)?

Thanks ahead of time for any help.

Greg