[avr-gcc-list] Help Needed (UART / USART)

[mickhail mcanuff]

I want to use the At902313 to Transmit the following characters listed in the main() function. The code below was used. I am also using the Atmega8515 to receive this transmitted code (i.e. '8','7','6').

 

#include <stdint.h>

#define F_CPU 3686400UL
#include <avr/io.h>

#include <avr/sfr_defs.h>

 

//////CODE FOR SENDING NUMBER TO THE UDR FOR TX////////

char send_val_1(char a)
{
 UBRR = 95;   //UBRR 2400 baud
 UCR = 0b00001000; //UCR

   
 if (bit_is_set(USR,UDRE));
 
 UDR = a;

return 0;
}

void main (void)
{
 {
 send_val_1('8');
// send_val_1('7');
// send_val_1('6');
 }
return 0;
}
///// END OF TX CODE/////////

 

//Receiving code

 

#include <stdint.h>
#define F_CPU 3686400UL
#include <avr/io.h>

   // Define baud rate

#define UART_BAUD 2400ul
#define UART_UBBR_VALUE ((F_CPU/(UART_BAUD<<4))-1)

void UART_vInit(void)

{

// Set baud rate

UBRRH = (uint8_t)(USART_UBBR_VALUE>>8);

UBRR = (uint8_t)UART_UBBR_VALUE;

// Set frame format to 8 data bits, no parity, 1 stop bit

//UCR = (0<<USBS)|(1<<UCSZ1)|(1<<UCSZ0);

// Enable receiver

UCR = (1<<RXEN);

}

uint8_t UART_vReceiveByte()

{

// Wait until a byte has been received

 while((UCR&(1<<RXC)) == 0);

// Return received data

return UDR;

}

int main(void)

{

uint8_t u8Data;

// Initialise USART

UART_vInit();

// Repeat indefinitely

while (1)

{

//received characters

u8Data = UART_vReceiveByte();

switch(u8Data)
{
 case '0' = PORTB = 0x00;
  break;
 case '1' = PORTB = 0x01;
  break;
 //........ continues to '9'

 case '9' = PORTB = 0xA1;
  break;
}

}

}

The purpose of this code is to receive the data sent from the 2313 and turn on 7 segment display located on PORTB. The code doesnt seem to be receiving. I wonder if the ATmega8515 can communicate with the AT90s2313?? Help pleeeeeze!!!!!!!!!!!!