TM4C1294NCPDT: Multiple interrupt triggers

nihit bhavsar

Part Number: TM4C1294NCPDT

Hi, I've configured a GPI to trigger interrupt on low level, but there are multiple triggers when GPI is low.

I intend on triggering interrupt only ONCE for each low level.

Any help would be highly appreciated.

Thanks,

Nihit

0 nihit bhavsar over 7 years ago

Solved, sorry for the confusion

0 cb1_mobile over 7 years ago in reply to nihit bhavsar

Guru 117855 points

NOT 'Solved' for users here - though!

We must assume that:

your clearing of the GPIO Interrupt occurred too late w/in the ISR - causing the clearance to be 'missed'
your input signal had significant 'bounce' - causing multiple interrupts
your input was 'floating' - thus vulnerable to 'illegal/unwanted' interrupts

Might you, 'Share the Solution' - which provides (some) value to others - here?

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