> Are _any_ interrupts serviced during isr, when isr is of type "enablenested > ? short answer -- yes.
> > the mspgcc-manual says (erratically?): > > ""enablenested" causes an interrupt enable instruction to be inserted > before the function prologue. This allows other _higher_ priority > interrupts to be serviced while handling the current one." you're right (according to the msp430 manual) -- any interrupt will interrupt current ISR regardless of priority (slauo49d, p.2-12) > > I'd like my USARt isr be able to interrupt my timerB isr occasionally. then you have to mask other interrupts except usarts within timerb ISR. cheers, ~d
