AVR-Chat

Hi Alex,

Thanks for the quick response, I understand what the code does, just
not why a bitwise AND is performed and what (1<<UDRE) "means". In my
baby-C, I would probably have written 

while (UCSRA.x != 0); 

where x is the UDRE bit. Any advantages to the way it's done below ?

cheers
Hein B


--- In AVR-Chat@yahoogroups.com, "Alex Shepherd" <lists06@...> wrote:
>
> > while ((UCSRA & (1<<UDRE))==0);
> 
> Loop around checking the state of the UDRE bit in the UCSRA port
until the
> bit value is NOT 0
>