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Old 06-02-2009, 09:04 AM   #1516 (permalink)
dcb
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Quote:
Originally Posted by MPaulHolmes View Post
I believe the interrupts are re-enabled by resetting the SREG register to what it was before disabling interrupts, rather than using sti().
That usually works, but it is only necessary when enabling interrupts from within a function that is going to be called from both interrupt enabled code and interrupt disabled code.
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