AVR-Chat

Hi Jim 
thanks replying to my querie
 
> In the GIMSK data page it says "activity on the pin will cause 
> interupt even if INT0 is configured as output".

I am obviously struggling with semantics.
I rearanged the code and realized that if GIMSK set to INTO, the result is equal to
GIMSK set to PCIE with PCMSK set to PB2 (all ports output).
In both instances we have internal interupts reacting on PB2.
If all set as output and you say switch to output port is a no no, would my external interupt to wake from sleep have to go to the reset pin. Mmmhh.
If all in sleep mode, then a pin change should wake from sleep. so GIMSK set as INTO all PORTS as outputs, switch on PB2 seems to work fine to wake from sleep. 
is this the correct way?
Thanks again
guido
 


 







 















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