RFID interfacing with atmega162

Hi,

I am new to programming got some issues in RFID interfacing

I am getting garbage on my lcd when i show card to reader.
Below is the shematic that i follow , i have created it on my own,I am not sure is it right or wrong.

I would be more thankful if any one could tell me the solution.
I am not sure should I use MAX232 or not?

specigication:
ATMEGA162
RFID 125Khz - RDM6300
Data sheet http://www.seeedstudio.com/depot/datasheet/RDM630-Spec..pdf



For mirocontroller coding I have followed ELECTRONICS GARAGE project
http://www.engineersgarage.com/embedded/avr-microcontroller-projects/rfid-interfacing-circuit

Coding I used for RFID.

#define F_CPU 12000000UL

#define USART_BAUDRATE 9600
#define BAUD_PRESCALE (((F_CPU / (USART_BAUDRATE * 16UL))) - 1)

main(){
	while(1)
	{
		getcard_id();	// Function to get RFID card no. from serial port
		LCD_cmd(0xC0);	// to go in second line and zeroth position on LCD
		LCD_display();		// a function to write RFID card no. on LCD
	}
	return 0;
}
void usart_init()
{
	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 >
>
 8); // Load upper 8-bits of the baud rate value..
								  // into the high byte of the UBRR register
}

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
}

Circuit diagram i am following i am not sure is it right or not.

Circuit diagram i am following i am not sure is it right or not.

Circuit diagram i am following i am not sure is it right or not.

@naqirizvi
As you already have a thread running I think it best to lock, then remove this thread.

Please re-post in the other thread.
We need to know which RFID reader you have.
The RDM6300 needs a RS232 converter, the RDM630 does not.
*Do not* use a MAX232 with a RDM630

I dont know why thread was closed, I reopened it.

For connecting RMD630 to controller you dont need MAX232. rest looks ok.. make sure you did not damage your controller connecting Max232 with it. I recommend replace your controller, remove max232 and then try reading card again.