AVR-Chat

On 6/17/07, John Samperi <samperi@ampertronics.com.au> wrote:
> At 12:05 PM 18/06/2007, you wrote:
> >Any call I make AFTER the SEI, ends up in this wierd place.
> >That means that it's almost certainly an ISR that's vectored to the
> >wrong place, but it's not jumping to the interrupt vectors
>
> You are using JMP and NOT RJMPs in the vectors I hope.

Correct.

I've been playing with this some more..

nop
nop
nop
... (more nops)

in  temp,sreg
ori temp,$80
out sreg,temp

nop
nop
....
nop

Now in the above code, if I manually set the GIE bit in SREG at the
first nop, a few instructions later, it does a jump to $00F020!

If I let it set the bit using the code above, it does the same thing,
just at a different point.

I just can't turn on interrupts!
Worse, there isn't any int that should vector to $00F020, that I'm aware of.