will this code work for it? i

[Shashank Rao.C]

will this code work for it? i have not tried this. and not compiled also. please tell me any modification?

 

 

 

#define F_CPU 12000000UL      // set CPU freq.
#define USART_BAUDRATE 9600
#define BAUD_PRESCALE (((F_CPU / (USART_BAUDRATE * 16UL))) – 1)
#include<avr/io.h>
#include<util/delay.h>

#define LCD_DATA PORTA    // LCD DATA PORT.
#define  ctrl PORTB       // CONTROL PORT FOR LCD.
#define en PB2            // ENABLE SINGNAL FOR LCD.
#define rw PB1            // READ/WRITE SIGNAL FOR LCD.
#define rs PB0            // REGISTER SELECTION SIGNAL FOR LCD.
#define MOTOR_CONTROL PORTC // MOTOR CONTROL PORT.

void LCD_cmd(unsigned char cmd);
void init_LCD(void);
void LCD_write(unsigned char data);

void usart_init();
void usart_putch(unsigned char send);
unsigned int usart_getch();

unsigned char msg[] = “”;

int main(void)
{
while(1)
{
uart_init();                    // initialize UART port.
init_LCD();

usart_get_string(msg[]);
_delay_ms(1000);
LCD_write_string(msg[]);
}
}

void init_LCD(void)              //Function to initialize LCD.
{
LCD_cmd(0x38);
_delay_ms(1);
// initialization of 16X2 LCD in 8bit mode
LCD_cmd(0x01); // clear LCD
_delay_ms(1);
LCD_cmd(0x0E); // cursor ON
_delay_ms(1);
LCD_cmd(0x80);    //first line 0th position
_delay_ms(1);
return;
}

void LCD_cmd(unsigned char cmd)           //Function to LCD command.
{
LCD_DATA=cmd;
ctrl =(0<<rs)|(0<<rw)|(1<<en);
_delay_ms(1);
ctrl =(0<<rs)|(0<<rw)|(0<<en);
_delay_ms(50);
return;
}

void LCD_write(unsigned char data)            //Function to write a letter in LCD.
{
LCD_DATA= data;
ctrl = (1<<rs)|(0<<rw)|(1<<en);
_delay_ms(1);
ctrl = (1<<rs)|(0<<rw)|(0<<en);
_delay_ms(50);
return ;
}

void LCD_write_string(unsigned char *str)         //Function to write a string in //LCD.
//value of the string in pointer *str
{
int i=0;
while(str!=’’)
//go on till the NULL character in the string
{
LCD_write(str);  //sending data on LCD byte by byte
i++;
}
return;

void usart_init()                                // Function to initialize USART.
{
UCSRB |= (1 << RXEN) | (1 << TXEN);
// Turn on the transmission and reception circuitry
UCSRC |= (1 << URSEL) | (1<<USBS) | (1 << UCSZ0) | (1 <<UCSZ1);
// Use 8-bit character sizes
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
}

void usart_putch(unsigned char send)                  
{
while ((UCSRA & (1 << UDRE)) == 0); // Do nothing until UDR is ready..
// for more data to be written to it
UDR = send; // Send the byte
}

unsigned int usart_getch()
{
while ((UCSRA & (1 << RXC)) == 0);
// Do nothing until data have been
//received and is ready to be read from UDR
return(UDR); // return the byte
}

 usart_get_string(unsigned char msg[])    //To recive a String
{
    unsigned char i=0;
    for(i=0;msg!=’’;i++)
    usart_getch(msg);
}