Hi, this is what I m doing

[usman]

 

Hi, this is what I m doing but unsuccessful…  

 

#define USART_BAUDRATE 57600

#define F_CPU 8000000

#define BAUD_PRESCALE (((F_CPU / (USART_BAUDRATE * 16))) – 1)

 

 

//this is the packet i want to transmit. I have define the array as:

char GenImg[12] = { 0xEF, 0x01, 0xFF, 0xFF, 0xFF, 0xFF, 0x01, 0x00, 0x03, 0x01, 0x00, 0x05 };

 

 

//I have called in the main these functions:

usart_init();

_delay_ms(500);

_delay_ms(500);

send_bytes(GenImg,12);

 

 

//this function is for “initialization of usart”:

void usart_init()

{

 

UCSRB |= (1 << RXEN) | (1 << TXEN);   // Turn on the transmission and reception circuitry

UCSRC |= (1 << URSEL) | (1 << UCSZ0) | (1 << UCSZ1); 

// Use 8-bit character sizes

UCSRC &= ~(1 << UMSEL); // In UCSRC, UMSEL = 0 for asynchronous

UCSRC &= ~(1<<USBS); //In UCSRC, USBS = 0 => 1 stop bit

 

UBRRL = BAUD_PRESCALE; 

// Load lower 8-bits of the baud rate value into the low byte of the UBRR register

UBRRH = (BAUD_PRESCALE >> ; // Load upper 8-bits of the baud rate value..

// into the high byte of the UBRR register

}

 

 

//this is function for transmitting:

void send_bytes(char *s, int length)

{

while (length–)

{

usart_transmit(*s);

s++;

}

}

 

 

void usart_transmit(unsigned char c)

{

while(!(UCSRA & (1 << UDRE))); // wait until UDR ready

UDR = c; // send character

}

 

 

Please help me to correct any errors!