Parallex RFID_PIC16f877a_LCD_Hi Tech C

[Jaden Ng]

Hi guys,
I need your help to provide me a HTC code that can relate the RFID to my LCD.i want the RFID reader to read the RFID tag’s code and send it to my lcd to display out the code.
I have uploaded the picture of my RFID

 

RFID model:Parallex RFID

http://www.trossenrobotics.com/store/p/5378-Parallax-RFID-Card-Reader-Serial-.aspx

RFID datasheet:

http://www.parallax.com/dl/docs/prod/audiovis/RFID-Reader-v1.1.pdf

 

this is my simple code to show character in display but how to do to make the lcd show out the code when RFID tag is sensed by RFID reader.

Code:

/*————————– BEGIN —————————-*/
#include<htc.h>
__CONFIG(0x3F39);
#define _XTAL_FREQ 4e6
#define RS RC4
#define EN RC5
#define databits PORTB

/*—————-PORT SETTINGS——————-*/
void pic_init()
    {
     TRISC4=0;
     TRISC5=0;
     TRISB=0;
    }

/*—————–LCD FUNCTIONS ———————-*/
void LCD_STROBE(void)
    {
    EN = 1;
    __delay_us(0.5);
    EN = 0;
    }
void data(unsigned char c)
    {
    RS=1;
    __delay_us(40);
     databits = ( c >> 4 );
    LCD_STROBE();
    databits = ( c );
    LCD_STROBE();
    }
void cmd(unsigned char c)
    {
     RS=0;
    __delay_us(40);
    databits = ( c >> 4 );
    LCD_STROBE();
    databits = ( c  );
    LCD_STROBE();
  __delay_ms(2);
    }
void clear(void)
    {
     cmd(0x01);
    __delay_ms(2);
    }
void lcd_init()
    {
    __delay_ms(20);
    cmd(0x28 );
    __delay_ms(1);
    cmd(0x28 );
    __delay_ms(1);
    cmd(0x28 );
    cmd(0x28 ); // Function set (4-bit interface, 2 lines, 5*7Pixels)
    cmd(0x0c); // Make cursorinvisible
    clear(); // Clear screen
    cmd(0b00000110); // Set entry Mode(auto increment of cursor)
    }
void string(const char *q)
    {
    while(*q)
  {

   data(*q++);
  }
    }

/*——————MAIN FUNCTION———————–*/
main()
    {
    __delay_ms(50);
    pic_init();
    lcd_init();
    while(1)
        {
        cmd(0x83);
        string(“Blind Audio”);
        cmd(0xc0);
        string(“Guidance System”);
        while(1);
        }
    }
/*—————- END ————————–*/

 

 

 

 

 

 

 

 

 

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