[avr-gcc-list] Help setting up USART on ATmega32 in C

[Rick Mann]

Hi. Sorry if this really isn't the right place for this question.

I'm trying to set up the USART on an ATmega32 (4.000 MHz) in C, with 
the following code:

void
sendMMCByte(char inByte)
{
        while (!(UCSRA & _BV(UDRE)));
        
        UDR = inByte;
}


int
main (void)
{
        UBRRH = 0;                              //      Set baud rate of 38400
        UBRRL = 6;
        UCSRA = 0;
        UCSRB = _BV(TXEN);              //      Enable the transmitter
        UCSRC = _BV(URSEL) | _BV(UCSZ1) | _BV(UCSZ0);
        
        sendMMCByte(0xd0);
        sendMMCByte(0x01);
        sendMMCByte(0x04);
        sendMMCByte(0xfe);
        sendMMCByte(0x00);
        sendMMCByte(0x02);
        sendMMCByte(0x00);
        sendMMCByte(0xd5);
}


Although I see a pulse train on the oscilloscope, I'm not sure the bit 
rate is correct. I've also tried using the speed doubling feature with 
a value of 12.

Any ideas?

Thanks!

--
Rick


--
"A facility for quotation covers the absence of original thought."
                                               --Lord Peter Wimsey