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MSP430FR2533: Captivate and Digital Input interrupt

Part Number: MSP430FR2533


As the title says, I need to implement 2 interrupts. The first one is a Capacitive proximity sensor using Captivate design library with LPM3 (Which is no problem for me). The real problem is I need another interrupt, active low input which means the interrupt will be triggered during the falling edge. The concept is the same function will be called either by Capacitive sensor or digital interrupt. I downloaded the entire example zip file for MSP430FR and wasn't able to find a single example that shows an input interrupt using LPM3. I would greatly appreciate it if you guys could suggest to me some resources other than the reference manual since I am a junior engineer and I learn more by examples.

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