RFID CARD COMPARE

/*****************************************************************************
 *   uarttest.c:  UART test C file for NXP LPC13xx Family Microprocessors
 *
 *   Copyright(C) 2008, NXP Semiconductor
 *   All rights reserved.
 *
 *   History
 *   2008.08.20  ver 1.00    Preliminary version, first Release
 *
******************************************************************************/
#include "LPC13xx.h"
#include "uart.h"
#include "stdio.h"
#include "lcd.h"
#include "string.h"
#define ARR_LEN 2
#define TAG_LEN 11



extern volatile uint32_t UARTCount;
char UARTBuffer[BUFSIZE];

 char TAG[ARR_LEN][TAG_LEN]={{0x24,0x30,0x30,0x31,0x32,0x38,0x31,0x35,0x36,0x38,0x30 },
		{0x24,0x30,0x30,0x31,0x32,0x38,0x31,0x32,0x38,0x36,0x39 }};

int main (void) {
	  /* Basic chip initialization is taken care of in SystemInit() called
	   * from the startup code. SystemInit() and chip settings are defined
	   * in the CMSIS system_<part family>.c file.
	   */
 SystemInit();
 init_lcd();
  /* NVIC is installed inside UARTInit file. */
  UARTInit(9600);

  unsigned char count=0,i;

 while (1)
 {				/* Loop forever */
	if ( UARTCount != 0 )
	{
	  LPC_UART->IER = IER_THRE | IER_RLS;			/* Disable RBR */
	  //UARTSend( ( char *)UARTBuffer, UARTCount );
	  lcd_putstring(0,( char *)UARTBuffer);
      UARTCount = 0;
	  LPC_UART->IER = IER_THRE | IER_RLS | IER_RBR;	/* Re-enable RBR */
	}

	   for(i=0; i<2; i++)
	    {
	      if(memcmp(UARTBuffer,TAG[ARR_LEN],TAG_LEN)==0)
          {
	    	  lcd_putstring(1,"ACCESS GIVEN"); // compare 12 bytes of the card value
	    	  count++;
          }
	      else
	      {
	    	  lcd_putstring(1,"ACCESS DENIED");
	      }
	    }
	      if(count>=2)
	      {
	    	  lcd_putstring(1,"NO SPACE");
	      }

	 }
}