On Wed, 30 Nov 2005 10:54, Mike Young wrote: > // Set baud rate > > UBRRH = (unsigned char)(baudrate>>8); > > UBRRL = (unsigned char)baudrate; > > // Enable 2x speed > > UCSRA = (1<<U2X); > > // Enable receiver > > UCSRB = (1<<RXEN)|(0<<TXEN)|(0<<RXCIE)|(0<<UDRIE);
This line turns the transmitter off..
I'm not sure why you have 0<<TXEN and others. I would write it as..
UCSRB = _BV(RXEN);
> // Async. mode, 8N1
>
> UCSRC = (0<<UMSEL)|(0<<UPM0)|(0<<USBS)|(3<<UCSZ0)|(0<<UCPOL);
This line has the same issue as the previous one, plus if you actually want to
modify UCSRC and not UBRRH (they are at the same address - at least on
ATMega32's) you need to set the MSB (URSEL), eg
UCSRC = _BV(URSEL) | _BV(UCSZ0) | _BV(UCSZ1);
--
Daniel O'Connor software and network engineer
for Genesis Software - http://www.gsoft.com.au
"The nice thing about standards is that there
are so many of them to choose from."
-- Andrew Tanenbaum
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