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MSP430FR2311: triggering wake up interrupt event from non GPIO pin to wake from lpm4

George Fleming II
Prodigy 200 points
Part Number: MSP430FR2311


I am needed to wake up from lpm4 by a voltage rise on a pin. For various reasons, it would be much more convenient to use the TRIO- pin on the MPS430FR2311PW16. This pin is dedicated for the TRIA; however, is it still possble to trigger an interrupt when a rising edge is applied to this pin?

Thank you,

George

  • 0
    TI__Genius 15370 points
    Hi George,

    Unfortunately, the TRI0- pin on the package you've specified is dedicated to the TRIA functionality and therefore does not have interrupt capability. To wake the device from a LPM via a pin interrupt, you'll need to use another pin.

    Best regards,
    Caleb Overbay

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