Hi Stefleus,

as already said, such thing can be done theoretically but is far from clean programing and should cause many trouble.

Please can you tell the reason, why you want to do so ?

I think, there are many things inside the timer interrupt and the only reason to do so, was to save time until return to main.

Then the better way is, to set a flag inside the external interrupt and check this flag on defined points inside the timer interupt to return earlier.


Peter