AVR-Chat

Hi,

I'm using an Atmega8 and I'm trying to send a value out the serial
port.  I'm using codevision and I've already set up the baud rate,
etc.  I'm using the command void putchar(char c) to send out the
value.  I have tried to simulate this code in Avr studio, but the UDR
doesn't change value.

Here is my code:

#include <mega8.h>

// Standard Input/Output functions
#include <stdio.h>

// Declare your global variables here

void main(void)
{
// Declare your local variables here

char k;
k = 84;


// Input/Output Ports initialization
// Port B initialization
// Func0=In Func1=In Func2=In Func3=In Func4=In Func5=In Func6=In
Func7=In 
// State0=T State1=T State2=T State3=T State4=T State5=T State6=T
State7=T 
PORTB=0x00;
DDRB=0x00;

// Port C initialization
// Func0=In Func1=In Func2=In Func3=In Func4=In Func5=In Func6=In 
// State0=T State1=T State2=T State3=T State4=T State5=T State6=T 
PORTC=0x00;
DDRC=0x00;

// Port D initialization
// Func0=In Func1=In Func2=In Func3=In Func4=In Func5=In Func6=In
Func7=In 
// State0=T State1=T State2=T State3=T State4=T State5=T State6=T
State7=T 
PORTD=0x00;
DDRD=0x00;

// Timer/Counter 0 initialization
// Clock source: System Clock
// Clock value: Timer 0 Stopped
TCCR0=0x00;
TCNT0=0x00;

// Timer/Counter 1 initialization
// Clock source: System Clock
// Clock value: Timer 1 Stopped
// Mode: Normal top=FFFFh
// OC1A output: Discon.
// OC1B output: Discon.
// Noise Canceler: Off
// Input Capture on Falling Edge
TCCR1A=0x00;
TCCR1B=0x00;
TCNT1H=0x00;
TCNT1L=0x00;
OCR1AH=0x00;
OCR1AL=0x00;
OCR1BH=0x00;
OCR1BL=0x00;

// Timer/Counter 2 initialization
// Clock source: System Clock
// Clock value: Timer 2 Stopped
// Mode: Normal top=FFh
// OC2 output: Disconnected
ASSR=0x00;
TCCR2=0x00;
TCNT2=0x00;
OCR2=0x00;

// External Interrupt(s) initialization
// INT0: Off
// INT1: Off
GICR|=0x00;
MCUCR=0x00;

// Timer(s)/Counter(s) Interrupt(s) initialization
TIMSK=0x00;

// USART initialization
// Communication Parameters: 8 Data, 1 Stop, No Parity
// USART Receiver: On
// USART Transmitter: On
// USART Mode: Asynchronous
// USART Baud rate: 2400
UCSRA=0x00;
UCSRB=0x18;
UCSRC=0x86;
UBRRH=0x00;
UBRRL=0x19;

// Analog Comparator initialization
// Analog Comparator: Off
// Analog Comparator Input Capture by Timer/Counter 1: Off
// Analog Comparator Output: Off
ACSR=0x80;
SFIOR=0x00;

while (1) 
	{
        /* receive the character */
        /*k=getchar();
        /* and echo it back */
        putchar(k);
        };

}


Thanks,
Kc