>And I dind't do that. What I am experiencing is that the ISR gets
>executed, but the main program remains sleepy. Is it normal?

Yes. How do you expect the main program to wake up?

Think about what is happening. You put the chip to sleep while still in the 
ISR, so how does the main program run if you haven't done a RETFIE 
instruction, or whatever the equivalent is on a dsPic.

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