Hello,
In order to set the bit, you need to logical OR the
bit.
DDRB |= _BV (PB0);
to clear it
DDRB &= ~_BV(PB0);
Nayani
> > 4: undefined reference to `__stack'
> >
> >
> > #include <avr/io.h>
> >
> > int
> > main(void){
> > while (1) {
> > DDRB = _BV(PB0);
> > };
> > }
> >
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