AVR-Chat

On Mon, Oct 05, 2009 at 01:37:23PM -0300, enkitec@gmail.com wrote:
> ?????????? ????? ?????????? wrote:
> > Hello.
> >
> > For example AtMega8535,AtMega16,AtMega32 have 3 interrupts from pins
> > (INT0, INT1, INT2).
> > Is there another Mega in Dip package with 4 interrupts from pins?
> > Possibly generate interrupt (Falling edge) from any pin?
> >
> > Another idea check pin state in loop but possibly lose signal.
> 
> Read the datasheet.

Ditto.

> You can use the ICP pin or the ANA_COMP interrupt.

Many devices have a pin change interrupt where if any pin (or a pin
included in a mask) of a port changes. Commonly used to read keypad
matrix.

-- 
David Kelly N4HHE, dkelly@HiWAAY.net
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Whom computers would destroy, they must first drive mad.