Hi all.
I want to know the difference between TOSH_SIGNAL and TOSH_INTERRUPT.
AFAIK, TOSH_SIGNAL can't be preempted by any other external interrupts!
On the other hand, TOSH_INTERRUPT can be preempted by other external
interrupts which have higher priority!
Is it right?
If so, the execution
There were some posts about pre-emptable interrupts a while ago
whose final conclusions I don't remember. But in general ints
on the ATMEGA are latched such that the second int will fire
when interrupts are re-enabled. The part I don't remember is
that there may be some level-only ints that do
