the above rfid interfacing to pic18f4550 code is not working …please suggest the right code as fast u can
#include <p18f4550.h>
/*The following lines of code perform interrupt vector relocation to work with the USB bootloader. These must be used with every application program to run as a USB application.*/
#pragma code
#pragma code _HIGH_INTERRUPT_VECTOR = 0x000808
void _high_ISR (void)
{
_asm goto change _endasm
}
#pragma code _LOW_INTERRUPT_VECTOR = 0x000818
void _low_ISR (void)
{
;
}
#pragma code
void change(void)
{
INTCON3bits.INT1IF = 0;
}
#define FREQ 12000000
#define baud 9600
#define spbrg_value (((FREQ/64)/baud)-1)
#define rs PORTAbits.RA0
#define rw PORTAbits.RA1
#define en PORTAbits.RA2
#define lcdport LATB
unsigned char rx_data();
void lcd_ini(void);
void lcdcmd(unsigned char);
void lcddata(unsigned char);
void MsDelay(unsigned int delay);
unsigned char data[] =”unique ID No.”;
unsigned char card_id[12];
unsigned int i=0,pos;
void main()
{
TRISB=0; // set port B as output port
LATB=0;
TRISA=0;
LATA=0;
SPBRG=spbrg_value; // fill SPBRG reg to set the baud rate
RCSTAbits.SPEN=1; // to activate serial port (Tx and Rx pins)
RCSTAbits.CREN=1; // to enable continuous reception
PIE1bits.RCIE=1; // to enable the reception (RX)interrupt
INTCONbits.GIE=1;
INTCONbits.PEIE=1;
lcd_ini(); // lcd initialization
while(data!=’ ’)
{
lcddata(data); // to send characters one by one from data array
i++;
}
while(1)
{
i=0;
while(i<12);
lcdcmd(0xc0);
i=0;
while(i<12)
{
lcddata(card_id); // print the 12 byte receiverd data
i++;
}
}
}
void interrupt()
{
card_id=RCREG; // store the receicer data byte by byte
i++;
}
void lcd_ini()
{
lcdcmd(0x38); // configure th lcd in 8 bit mode
lcdcmd(0x0c); // display on and cursor off
lcdcmd(0x01);// clear displayscreen
lcdcmd(0x06);//increment cursor
lcdcmd(0x80);//set cursor position to 1st line 1st coloum
}
void lcdcmd(unsigned char cmdout)
{
lcdport= cmdout;// send command to lcdport=PORTB
rs=0;
rw=0;
en=1;
MsDelay(10);
en=0;
}
void lcddata(unsigned char dataout)
{
lcdport=dataout;// send data to lcdport =PORTB
rs=1;
rw=0;
en=1;
MsDelay(10);
en=0;
}
void MsDelay(unsigned int time)
{
unsigned int i,j;
for(i=0;i<time;i++)
for(j=0;j<710;j++);
}