Hi,

I wrote a program that interrupts on TMR0 overflows in the MPLAB =
simulation, but for some odd reason it doesn't work when programmed in a =
circuit.  I have confirmed that the rest of the program and TMR0 are =
working, but the interrupt just doesn't fire when put into an actual =
circuit.  What could be the problem?

(TMR0 source is CLKOUT)

Thanks.

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