Continue to Site

Welcome to EDAboard.com

Welcome to our site! EDAboard.com is an international Electronics Discussion Forum focused on EDA software, circuits, schematics, books, theory, papers, asic, pld, 8051, DSP, Network, RF, Analog Design, PCB, Service Manuals... and a whole lot more! To participate you need to register. Registration is free. Click here to register now.

Register Log in

[SOLVED] Interfacing RFID with LPC 1343

Status
Not open for further replies.
S

sanpai

Newbie level 6
Joined
Oct 23, 2012
Messages
11
Helped
1
Reputation
2
Reaction score
1
Trophy points
1,283
Activity points
1,367
Hey Team,

I 'm new to ARM ,please let me know the steps to interface RFID with LPC 1343 .
 

We are intending to interface an rfid module to the controller .

The rfid module consists of a built in antenna and the tag used is a passive one .

Please let me know the steps and if you have any code ,please do share the same .
 

Hi,

Thanks for your quick response .

We want to interface the module using UART .

below is the manual of the rfid module . Please help

and do let us know how to read the card , provide us the steps and if you have the code please do share the same .
 

Attachments

  • LF OEM RFID TRAINING KIT DT125EVU (1).pdf
    433.1 KB · Views: 171
This is my suggestion, you need to improve more for fitting.
View attachment ARM-SL025M Schematic.pdf
Code: 
////////////////////////////////////////////////////////////
//Test SL025x
//ARM C source code
//LM3S600(6MHz) + EWARM 5.30
////////////////////////////////////////////////////////////   
#include "hw_types.h"
#include "hw_memmap.h"
#include "hw_uart.h"
#include "hw_ints.h"
#include "string.h"
#include "sysctl.h"
#include "gpio.h"
#include "systick.h"
#include "interrupt.h"
#include "uart.h"

//============================================
//	Uart bound define
//============================================
#define  BOUND4800         4800
#define  BOUND9600         9600
#define  BOUND14400        14400
#define  BOUND19200        19200
#define  BOUND28800        28800
#define  BOUND38400        38400
#define  BOUND57600        57600
#define  BOUND115200       115200

//============================================
//	Uart Status define
//============================================
#define UARTSTATUS_FREE    0
#define UARTSTATUS_TX      1
#define UARTSTATUS_TXSUCC  2
#define UARTSTATUS_RXSUCC  3
#define UARTSTATUS_RXERR   4

//============================================
//  Command List, preamble + length + command 
//============================================
const unsigned char __packed SelectCard[]=      {0xBA,0x02,0x01 };       
const unsigned char __packed LoginSector0[]=    {0xBA,0x0A,0x02,0x00,0xAA,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF};  
const unsigned char __packed LoginSector1[]=    {0xBA,0x0A,0x02,0x01,0xAA,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF};
const unsigned char __packed ReadBlock1[]=      {0xBA,0x03,0x03,0x01};                                     
const unsigned char __packed WriteBlock1[]=     {0xBA,0x13,0x04,0x01,0x00,0x11,0x22,0x33,0x44,0x55,0x66,0x77,0x88,0x99,0xAA,0xBB,0xCC,0xDD,0xEE,0xFF};                                
const unsigned char __packed ReadValue[]=       {0xBA,0x03,0x05,0x05};  
const unsigned char __packed InitializeValue[]=	{0xBA,0x07,0x06,0x04,0x00,0x00,0x00,0x01};                                
const unsigned char __packed IncrementValue[]=  {0xBA,0x07,0x08,0x04,0x00,0x00,0x00,0x20};                                
const unsigned char __packed DecrementValue[]=  {0xBA,0x07,0x09,0x04,0x03,0x00,0x00,0x00};                                          
const unsigned char __packed CopyValue[]=       {0xBA,0x04,0x0A,0x04,0x05};
const unsigned char __packed ReadULPage5[]=     {0xBA,0x03,0x10,0x05};                                          
const unsigned char __packed WriteULPage5[]=    {0xBA,0x07,0x11,0x05,0x11,0x22,0x33,0x44};
const unsigned char __packed TurnOnRedLed[]=    {0xBA,0x03,0x40,0x01};     
const unsigned char __packed TurnOffRedLed[]=   {0xBA,0x03,0x40,0x00};             

//============================================
//  global variable define
//============================================
unsigned char g_cCardType;
unsigned long int g_iTimer;
unsigned char g_bOverTime;
unsigned char g_cUartTxCnt;
unsigned char g_cUartTxDataLen;
unsigned char *g_pUartTxDat;
unsigned char g_cUartTxCheckSum;
unsigned char g_cUartRxCnt;
unsigned char g_cUartRxBuf[60];
unsigned char g_cUartStatus;

//============================================
//  i/o port define
//============================================
#define CARDIN_SL025 GPIO_PORTD_BASE,GPIO_PIN_2

//============================================
//  procedure define
//============================================
void InitializeSystem(); 
void Start_Time(unsigned long int ms);
void Stop_Time();
void Test_SL025x();

void main()
{ InitializeSystem();
  g_iTimer=0;
  while(1) Test_SL025x();
}

//============================================
//	system clock interrupt procedure
//============================================
void SysTickIntHandler(void)
{ if(g_iTimer!=0)
  { g_iTimer--;
    if(g_iTimer==0) g_bOverTime=1;
  }
}

//============================================
//  initialize system hardware config
//  system clock,uart0
//============================================
void InitializeSystem()
{	
  //init sysclock
  //period=1ms
  SysCtlClockSet(SYSCTL_SYSDIV_4|SYSCTL_USE_PLL|SYSCTL_OSC_MAIN|SYSCTL_XTAL_6MHZ);
  SysTickPeriodSet(SysCtlClockGet()/1000);
  SysTickEnable();
  SysTickIntEnable();
  SysCtlPeripheralEnable(SYSCTL_PERIPH_GPIOA);
  SysCtlPeripheralEnable(SYSCTL_PERIPH_GPIOD);
  
  //CARD_IN PD2
  GPIODirModeSet(GPIO_PORTD_BASE,GPIO_PIN_2,GPIO_DIR_MODE_IN);
  GPIOPadConfigSet(GPIO_PORTD_BASE,GPIO_PIN_2,GPIO_STRENGTH_2MA,GPIO_PIN_TYPE_STD_WPU);
  
  //init Uart
  //baud=115200
  SysCtlPeripheralEnable(SYSCTL_PERIPH_UART0);
  GPIOPinTypeUART(GPIO_PORTA_BASE,GPIO_PIN_0|GPIO_PIN_1);
  UARTDisable(UART0_BASE);
  UARTIntClear(UART0_BASE,UART_INT_OE|UART_INT_BE|UART_INT_PE|UART_INT_FE|UART_INT_RT|UART_INT_TX|UART_INT_RX);
  UARTIntDisable(UART0_BASE,UART_INT_OE|UART_INT_BE|UART_INT_PE|UART_INT_FE|UART_INT_RT|UART_INT_TX|UART_INT_RX);
  UARTConfigSetExpClk(UART0_BASE,SysCtlClockGet(),BOUND115200,(UART_CONFIG_WLEN_8|UART_CONFIG_STOP_ONE|UART_CONFIG_PAR_NONE));
  UARTFIFOLevelSet(UART0_BASE,UART_FIFO_TX1_8,UART_FIFO_RX1_8);
  HWREG(UART0_BASE+UART_O_LCRH) &= ~(UART_LCRH_FEN);
  UARTIntEnable(UART0_BASE,UART_INT_RX|UART_INT_TX);
  IntEnable(INT_UART0);
  g_cUartStatus=UARTSTATUS_FREE;
  g_cUartRxCnt=0;
  
  //interrupt enable
  IntMasterEnable();
}

//============================================
//  start timer
//============================================
void Start_Time(unsigned long int ms)
{ g_iTimer=ms;
  g_bOverTime=0;
}

//============================================
//  stop timer
//============================================
void Stop_Time()
{ g_iTimer=0;
}

void UARTISR_TX025x()
{ unsigned char tmp;
  if(g_cUartTxCnt==g_cUartTxDataLen)
  { if(g_cUartStatus==UARTSTATUS_TX)
    { g_cUartStatus=UARTSTATUS_TXSUCC;
      g_cUartRxCnt=0;
      UARTCharPutNonBlocking(UART0_BASE,g_cUartTxCheckSum);
    }
  }
  else
  { tmp=g_pUartTxDat[g_cUartTxCnt];
    g_cUartTxCheckSum=g_cUartTxCheckSum^tmp;
    g_cUartTxCnt++;
    UARTCharPutNonBlocking(UART0_BASE,tmp);
  }
}

void UARTISR_RX025x(unsigned char dat)
{ unsigned char CheckSum;
  unsigned char counter;
  g_cUartRxBuf[g_cUartRxCnt]=dat;
  g_cUartRxCnt++;
  if(g_cUartRxCnt==g_cUartRxBuf[1]+2)
  { CheckSum=0;
    for(counter=0;counter<g_cUartRxCnt;counter++) CheckSum=CheckSum^g_cUartRxBuf[counter];
    if(CheckSum==0) g_cUartStatus=UARTSTATUS_RXSUCC;
    else g_cUartStatus=UARTSTATUS_RXERR;
  }
}

void UART0_ISR(void)
{ unsigned long flag_int;
  unsigned char tmp;
  flag_int=UARTIntStatus(UART0_BASE,true);
  UARTIntClear(UART0_BASE,flag_int);
  if((flag_int&UART_INT_TX)==UART_INT_TX) UARTISR_TX025x();
  if((flag_int&UART_INT_RX)==UART_INT_RX) 
  { tmp=UARTCharGetNonBlocking(UART0_BASE);
    UARTISR_RX025x(tmp);
  }
}

//============================================
//  send buffer by uart0
//============================================
void SendBuf_UART(unsigned char *dat,unsigned char len)
{ g_cUartStatus=UARTSTATUS_TX;
  g_pUartTxDat=dat;
  g_cUartTxDataLen=len;
  g_cUartTxCnt=0;
  g_cUartTxCheckSum=0;
  UARTISR_TX025x();
}

//============================================
//  SL025x1 test procedure
//============================================
void Test_SL025x()
{	
  #define RCVCMD_SL025x g_cUartRxBuf[2]
  #define RCVSTA_SL025x g_cUartRxBuf[3]
  unsigned long int lPurseValue;
  unsigned char g_cErr;
  g_cCardType=0xff;
  
  if((GPIOPinRead(CARDIN_SL025)&GPIO_PIN_2)==GPIO_PIN_2) return;
  
  //Get the unique serial number of Mifare Card 
  SendBuf_UART((unsigned char *)(SelectCard),sizeof(SelectCard));	
  Start_Time(300);
  while((g_cUartStatus!=UARTSTATUS_RXERR)&&(g_cUartStatus!=UARTSTATUS_RXSUCC)&&(g_bOverTime==0));
  Stop_Time();	
  if((g_cUartStatus!=UARTSTATUS_RXSUCC)||(RCVCMD_SL025x!=0x01)||(RCVSTA_SL025x!=0)) return;
  g_cCardType=g_cUartRxBuf[g_cUartRxBuf[1]];
  
  switch(g_cCardType)
  { 
    case 1:    //Mifare 1k 4 BYTE UID
    case 2:    //Mifare 1k 7 BYTE UID
    case 4:    //Mifare 4k 4 BYTE UID
    case 5:    //Mifare 4k 7 BYTE UID 
      //Verify password of sector0   
      SendBuf_UART((unsigned char *)(LoginSector0),sizeof(LoginSector0));
      Start_Time(300);
      while((g_cUartStatus!=UARTSTATUS_RXERR)&&(g_cUartStatus!=UARTSTATUS_RXSUCC)&&(g_bOverTime==0));
      Stop_Time();	
      if((g_cUartStatus!=UARTSTATUS_RXSUCC)||(RCVCMD_SL025x!=0x02)||(RCVSTA_SL025x!=0x02)) return;
      
      //Write data to block1			
      SendBuf_UART((unsigned char *)(WriteBlock1),sizeof(WriteBlock1));
      Start_Time(300);
      while((g_cUartStatus!=UARTSTATUS_RXERR)&&(g_cUartStatus!=UARTSTATUS_RXSUCC)&&(g_bOverTime==0));
      Stop_Time();	
      if((g_cUartStatus!=UARTSTATUS_RXSUCC)||(RCVCMD_SL025x!=0x04)||(RCVSTA_SL025x!=0)) return;
      if(memcmp(&WriteBlock1[4],&g_cUartRxBuf[4],16)!=0) return;
      
      //Read data from block1
      SendBuf_UART((unsigned char *)(ReadBlock1),sizeof(ReadBlock1));
      Start_Time(300);
      while((g_cUartStatus!=UARTSTATUS_RXERR)&&(g_cUartStatus!=UARTSTATUS_RXSUCC)&&(g_bOverTime==0));
      Stop_Time();	
      if((g_cUartStatus!=UARTSTATUS_RXSUCC)||(RCVCMD_SL025x!=0x03)||(RCVSTA_SL025x!=0)) return;
      if(memcmp(&WriteBlock1[4],&g_cUartRxBuf[4],16)!=0) return;
      
      //Verify password of sector1
      SendBuf_UART((unsigned char *)(LoginSector1),sizeof(LoginSector1));
      Start_Time(300);
      while((g_cUartStatus!=UARTSTATUS_RXERR)&&(g_cUartStatus!=UARTSTATUS_RXSUCC)&&(g_bOverTime==0));
      Stop_Time();	
      if((g_cUartStatus!=UARTSTATUS_RXSUCC)||(RCVCMD_SL025x!=0x02)||(RCVSTA_SL025x!=0x02)) return;
      
      //Initialize block4 to one purse, and value = 0x01000000
      SendBuf_UART((unsigned char *)(InitializeValue),sizeof(InitializeValue));
      Start_Time(300);
      while((g_cUartStatus!=UARTSTATUS_RXERR)&&(g_cUartStatus!=UARTSTATUS_RXSUCC)&&(g_bOverTime==0));
      Stop_Time();	
      if((g_cUartStatus!=UARTSTATUS_RXSUCC)||(RCVCMD_SL025x!=0x06)||(RCVSTA_SL025x!=0)) return;
      if(memcmp(&InitializeValue[4],&g_cUartRxBuf[4],4)!=0) return;
      
      //Increment
      SendBuf_UART((unsigned char *)(IncrementValue),sizeof(IncrementValue));
      Start_Time(300);
      while((g_cUartStatus!=UARTSTATUS_RXERR)&&(g_cUartStatus!=UARTSTATUS_RXSUCC)&&(g_bOverTime==0));
      Stop_Time();	
      if((g_cUartStatus!=UARTSTATUS_RXSUCC)||(RCVCMD_SL025x!=0x08)||(RCVSTA_SL025x!=0)) return;
      
      //Decrement
      SendBuf_UART((unsigned char *)(DecrementValue),sizeof(DecrementValue));
      Start_Time(300);
      while((g_cUartStatus!=UARTSTATUS_RXERR)&&(g_cUartStatus!=UARTSTATUS_RXSUCC)&&(g_bOverTime==0));
      Stop_Time();	
      if((g_cUartStatus!=UARTSTATUS_RXSUCC)||(RCVCMD_SL025x!=0x09)||(RCVSTA_SL025x!=0)) return;
      
      //Backup purse to blcok5
      SendBuf_UART((unsigned char *)(CopyValue),sizeof(CopyValue));
      Start_Time(300);
      while((g_cUartStatus!=UARTSTATUS_RXERR)&&(g_cUartStatus!=UARTSTATUS_RXSUCC)&&(g_bOverTime==0));
      Stop_Time();	
      if((g_cUartStatus!=UARTSTATUS_RXSUCC)||(RCVCMD_SL025x!=0x0a)||(RCVSTA_SL025x!=0)) return;
      
      //Read purse value from blcok5			   
      SendBuf_UART((unsigned char *)(ReadValue),sizeof(ReadValue));
      Start_Time(300);
      while((g_cUartStatus!=UARTSTATUS_RXERR)&&(g_cUartStatus!=UARTSTATUS_RXSUCC)&&(g_bOverTime==0));
      Stop_Time();	
      if((g_cUartStatus!=UARTSTATUS_RXSUCC)||(RCVCMD_SL025x!=0x05)||(RCVSTA_SL025x!=0)) return;
      
      //Check value	 
      lPurseValue=g_cUartRxBuf[7];
      lPurseValue=(lPurseValue<<8)+g_cUartRxBuf[6];
      lPurseValue=(lPurseValue<<8)+g_cUartRxBuf[5];
      lPurseValue=(lPurseValue<<8)+g_cUartRxBuf[4];
      if(lPurseValue!=0x01000000+0x20000000-0x00000003) return;
      g_cErr=0;
      break;
    

    case 3:      //Mifare_UltraLight
      SendBuf_UART((unsigned char *)(WriteULPage5),sizeof(WriteULPage5));
      Start_Time(300);
      while((g_cUartStatus!=UARTSTATUS_RXERR)&&(g_cUartStatus!=UARTSTATUS_RXSUCC)&&(g_bOverTime==0));
      Stop_Time();	
      if((g_cUartStatus!=UARTSTATUS_RXSUCC)||(RCVCMD_SL025x!=0x11)||(RCVSTA_SL025x!=0)) return;
      SendBuf_UART((unsigned char *)(ReadULPage5),sizeof(ReadULPage5));
      Start_Time(300);
      while((g_cUartStatus!=UARTSTATUS_RXERR)&&(g_cUartStatus!=UARTSTATUS_RXSUCC)&&(g_bOverTime==0));
      Stop_Time();	
      if((g_cUartStatus!=UARTSTATUS_RXSUCC)||(RCVCMD_SL025x!=0x10)||(RCVSTA_SL025x!=0)) return;
      if (memcmp(&WriteULPage5[4],&g_cUartRxBuf[4],4)!=0) return;
      g_cErr=0;
      break;
    
    
    case 2:      //Mifare_Pro
    case 5:      //Mifare_ProX
    case 6:      //Mifare_DesFire 
      g_cErr=4;
      break;
    
    
    default:
      g_cErr=3;
      break;
  }
  if(g_cErr!=0) return;
  
  //Glare Red_Led to indicate working ok
  SendBuf_UART((unsigned char *)(TurnOnRedLed),sizeof(TurnOnRedLed));
  Start_Time(300);
  while((g_cUartStatus!=UARTSTATUS_RXERR)&&(g_cUartStatus!=UARTSTATUS_RXSUCC)&&(g_bOverTime==0));
  Stop_Time();
  Start_Time(300);
  while(g_bOverTime==0);
  Stop_Time();
  SendBuf_UART((unsigned char *)(TurnOffRedLed),sizeof(TurnOffRedLed));
  Start_Time(300);
  while((g_cUartStatus!=UARTSTATUS_RXERR)&&(g_cUartStatus!=UARTSTATUS_RXSUCC)&&(g_bOverTime==0));
  Stop_Time();
}
 
Hello thegioi21master ,

Thanks for your quick response , will this code work for LPC 1343 ? .
 

Hey Mr GOIMaster ,

We read the card through UART and used the memcmp string function to compare and its working fine .

Thanks for your help you've been great
 

Status
Not open for further replies.

Similar threads

Part and Inventory Search

Welcome to EDABoard.com

Sponsor

Back
Top