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CC2543: ISR #pragma confusion

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Part Number: CC2543

For the CC2543, what is the difference between "#pragma vector = P0INT_VECTOR" and "#pragma vector = P1INT_VECTOR"?

I spent a while today debugging why my ISR for the latter (P1INT_VECTOR) was not triggering.  Turned out that a function in another file had P0INT_VECTOR defined, and apparently that function was triggering for my desired interrupt.  Shouldn't those two pragmas result from different interrupts/events?

I'm basing my code off from the "io_in" example, which uses a Port 0 pin for the interrupt and defines P1INT_VECTOR only.  

In my case, I can comment out the P0INT_VECTOR function and things work fine.  However I'm confused why there was a conflict in the first place.

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