> I can remember this, but I don't know "making func/prox re-entrant" means...
> Could you give some more words on this ?
I can try to. The problem is that function execution can be
interrupted by the isr. If the isr uses that same fuction, it messes
up the local vars and calling vars. So if a function is used in both
the main program and isr, there will be two instances of this
function, each with their own set of vars.
So not realy re-enterant, but since recursion is not possible with
JAL, it is good enough.

Joep

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