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[RFID] How to send id & data cards to LCD 16x2

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artbc11

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hi,
I have module RFID **broken link removed**

Code: 
//============================================
//PIC C source code
//PIC16F887(8MHz) + PICC 9.70
//============================================
#include <htc.h>
#include <pic16f887.h>
#include <string.h>
#include "lcd.h"
#include "sl025m.h"
#include "lcd.c"

__CONFIG(HS & WDTDIS & PWRTEN & MCLREN & UNPROTECT & DUNPROTECT & 
SWBOREN & IESODIS & FCMDIS & LVPDIS & DEBUGDIS);
__CONFIG(DEBUGEN&LVPDIS&FCMEN&IESOEN&BOREN&UNPROTECT&DUNPROTECT&MCLREN&PWRTEN&WDTDIS&INTIO&BORV21);

//============================================
//  PIN define
//============================================
#define RX_PIN TRISC7
#define TX_PIN TRISC6
#define Buzzer RB2
#define CARDIN_SL025x	RC0

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

//============================================
//  Card type define
//============================================
#define CARDTYPE_S50 0
#define CARDTYPE_S70 1
#define CARDTYPE_ProX 2
#define CARDTYPE_Pro 3
#define CARDTYPE_UL 4
#define CARDTYPE_DES 5
#define CARDTYPE_TAG 6
#define CARDTYPE_ICODE 7

//============================================
//  global variable define
//============================================
bank1 unsigned int g_iTimer;
bank1 unsigned char g_cTimer_Buzzer;
unsigned char g_bOverTime;
bit g_bUartTxHead;
bit g_bUartRxHead;
const unsigned char *g_pUartTxDat;
unsigned char g_cUartTxCheckSum;
unsigned char g_cUartRxCnt;
unsigned char g_cUartStatus;

bank1 unsigned char g_cRxBuf[40];
bank1 unsigned char g_cUartTxCnt;
bank1 unsigned char g_cUartTxDataLen;
bank1 unsigned char g_cCardType;

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

//============================================
//  procedure define
//============================================
void Init_Hardware(void);
void BuzzerOn(void);
void Start_Time(unsigned int ms);
void SendBuf_UART(const unsigned char *dat,unsigned char len);
//void ReceiveDat_UART(void);
void SL025M(void);
void delay(unsigned int time);


//============================================
//  initialize system hardware config
//  timer,uart,port
//============================================
void Init_Hardware(void)
{	
  OSCCON=0x71;		//8M
  while(HTS==0);		
  ANSEL=0x00;
  ANSELH=0x00;  
  TRISB2=0;
  OPTION=0x07;
  TMR0=0xb1;
  T0IE=1;
  RX_PIN=1;
  TX_PIN=1;
  Buzzer=0;
  TXSTA=0x04;
  RCSTA=0x90;
  BAUDCTL=0x08;
  SPBRG=0x10;
  SPBRGH=0;
  RCIE=1;
  TXEN=1;
  PEIE=1;
  GIE=1;
}

//============================================
//  interrupt service
//  timer interrupt
//  uart rx interrupt
//============================================
void interrupt isr(void)
{
  unsigned char dat;
  unsigned char CheckSum;
  unsigned char counter;
  if(T0IF)
  {
    T0IF=0;
    TMR0=0xb1;
    if(g_iTimer!=0)
    {
      g_iTimer--;
      if(g_iTimer==0) g_bOverTime=1;
    }
    if(g_cTimer_Buzzer!=0)
    {
      g_cTimer_Buzzer--;
      if(g_cTimer_Buzzer==0) Buzzer=0;
    }	
  }
  if(RCIF)
  {
    dat=RCREG;
    {
      g_cRxBuf[g_cUartRxCnt]=dat;
      g_cUartRxCnt++;

      if(g_cUartRxCnt==g_cRxBuf[1]+2)
      {
		lcd_putc(g_cUartRxCnt[g_cRxBuf]);
        CheckSum=0;
        for(counter=0;counter<g_cUartRxCnt;counter++) CheckSum=CheckSum^g_cRxBuf[counter];
        if(CheckSum==0) g_cUartStatus=UARTSTATUS_RXSUCC;
        else g_cUartStatus=UARTSTATUS_RXERR;

      }
    }
  }
}




//============================================
//  trun on buzzer about 100mS
//============================================
void BuzzerOn(void)
{
  Buzzer=1;
  g_cTimer_Buzzer=10;
}

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

//============================================
//  send buffer by uart
//============================================
void SendBuf_UART(const unsigned char *dat,unsigned char len)
{
  unsigned char tmp;
  g_cUartStatus=UARTSTATUS_TX;
  g_pUartTxDat=dat;
  g_cUartTxDataLen=len;
  g_cUartTxCnt=0;
  g_cUartTxCheckSum=0;
  g_bUartTxHead=0;
  while(g_cUartTxCnt!=g_cUartTxDataLen)
  {
    tmp=g_pUartTxDat[g_cUartTxCnt];
    g_cUartTxCheckSum=g_cUartTxCheckSum^tmp;
    g_cUartTxCnt++;
    while(TXIF==0);
    TXREG=tmp;
  }
  g_cUartStatus=UARTSTATUS_TXSUCC;
  g_cUartRxCnt=0;
  while(TXIF==0);
  TXREG=g_cUartTxCheckSum;
}


void delay(unsigned int time)
{
	unsigned int i,j;
	for(i=0;i<time;i++)
	{
		for(j=0;j<time;j++){;}
	}
}

#define RCVCMD_SL025x g_cRxBuf[2]
#define RCVSTA_SL025x g_cRxBuf[3]

void SL025M(void)
{

  unsigned long int lPurseValue;
  g_cCardType=0xff;
  if(CARDIN_SL025x) return;
  SendBuf_UART(SelectCard,sizeof(SelectCard));	
  Start_Time(30);
  while((g_cUartStatus!=UARTSTATUS_RXERR)&&(g_cUartStatus!=UARTSTATUS_RXSUCC)&&(g_bOverTime==0));
  if((g_cUartStatus!=UARTSTATUS_RXSUCC)||(RCVCMD_SL025x!=0x01)||(RCVSTA_SL025x!=0)) return;
  if(g_cRxBuf[g_cRxBuf[1]]==1) g_cCardType=CARDTYPE_S50;        //Mifare 1k 4 byte UID
  else if(g_cRxBuf[g_cRxBuf[1]]==2) g_cCardType=CARDTYPE_S50;   //Mifare 1k 7 byte UID
  else if(g_cRxBuf[g_cRxBuf[1]]==3) g_cCardType=CARDTYPE_UL;    //Ultralight 7 byte UID
  else if(g_cRxBuf[g_cRxBuf[1]]==4) g_cCardType=CARDTYPE_S70;   //Mifare 4k 4 byte UID
  else if(g_cRxBuf[g_cRxBuf[1]]==5) g_cCardType=CARDTYPE_S70;   //Mifare 4k 7 byte UID
  else if(g_cRxBuf[g_cRxBuf[1]]==6) g_cCardType=CARDTYPE_DES;   //DesFire 7 byte UID
  switch(g_cCardType)
  {

    case CARDTYPE_S50:
    case CARDTYPE_S70:
      //Verify password of sector0   
      SendBuf_UART(LoginSector0,sizeof(LoginSector0));
      Start_Time(30);
      while((g_cUartStatus!=UARTSTATUS_RXERR)&&(g_cUartStatus!=UARTSTATUS_RXSUCC)&&(g_bOverTime==0));
      if((g_cUartStatus!=UARTSTATUS_RXSUCC)||(RCVCMD_SL025x!=0x02)||(RCVSTA_SL025x!=0x02)) return;
      


	//Write data to block1			
      SendBuf_UART(WriteBlock1,sizeof(WriteBlock1));
      while((g_cUartStatus!=UARTSTATUS_RXERR)&&(g_cUartStatus!=UARTSTATUS_RXSUCC)&&(g_bOverTime==0));
      if((g_cUartStatus!=UARTSTATUS_RXSUCC)||(RCVCMD_SL025x!=0x04)||(RCVSTA_SL025x!=0)) return;
      if(memcmp(&WriteBlock1[4],&g_cRxBuf[4],16)!=0) return;
    
      //Read data from block1
      SendBuf_UART(ReadBlock1,sizeof(ReadBlock1));
      Start_Time(30);
      while((g_cUartStatus!=UARTSTATUS_RXERR)&&(g_cUartStatus!=UARTSTATUS_RXSUCC)&&(g_bOverTime==0));
      if((g_cUartStatus!=UARTSTATUS_RXSUCC)||(RCVCMD_SL025x!=0x03)||(RCVSTA_SL025x!=0)) return;
      if(memcmp(&WriteBlock1[4],&g_cRxBuf[4],16)!=0) return;

     


      //Verify password of sector1
      SendBuf_UART(LoginSector1,sizeof(LoginSector1));
      Start_Time(30);
      while((g_cUartStatus!=UARTSTATUS_RXERR)&&(g_cUartStatus!=UARTSTATUS_RXSUCC)&&(g_bOverTime==0));
      if((g_cUartStatus!=UARTSTATUS_RXSUCC)||(RCVCMD_SL025x!=0x02)||(RCVSTA_SL025x!=0x02)) return;
      //Initialize block4 to one purse, and value = 0x01000000
      SendBuf_UART(InitializeValue,sizeof(InitializeValue));
      Start_Time(30);
      while((g_cUartStatus!=UARTSTATUS_RXERR)&&(g_cUartStatus!=UARTSTATUS_RXSUCC)&&(g_bOverTime==0));
      if((g_cUartStatus!=UARTSTATUS_RXSUCC)||(RCVCMD_SL025x!=0x06)||(RCVSTA_SL025x!=0)) return;
      if(memcmp(&InitializeValue[4],&g_cRxBuf[4],4)!=0) return;
      //Increment
      SendBuf_UART(IncrementValue,sizeof(IncrementValue));
      Start_Time(30);
      while((g_cUartStatus!=UARTSTATUS_RXERR)&&(g_cUartStatus!=UARTSTATUS_RXSUCC)&&(g_bOverTime==0));
      if((g_cUartStatus!=UARTSTATUS_RXSUCC)||(RCVCMD_SL025x!=0x08)||(RCVSTA_SL025x!=0)) return;
      //Decrement
      SendBuf_UART(DecrementValue,sizeof(DecrementValue));
      Start_Time(30);
      while((g_cUartStatus!=UARTSTATUS_RXERR)&&(g_cUartStatus!=UARTSTATUS_RXSUCC)&&(g_bOverTime==0));
      if((g_cUartStatus!=UARTSTATUS_RXSUCC)||(RCVCMD_SL025x!=0x09)||(RCVSTA_SL025x!=0)) return;
      //Backup purse to blcok5
      SendBuf_UART(CopyValue,sizeof(CopyValue));
      Start_Time(30);
      while((g_cUartStatus!=UARTSTATUS_RXERR)&&(g_cUartStatus!=UARTSTATUS_RXSUCC)&&(g_bOverTime==0));
      if((g_cUartStatus!=UARTSTATUS_RXSUCC)||(RCVCMD_SL025x!=0x0a)||(RCVSTA_SL025x!=0)) return;
      //Read purse value from blcok5			   
      
	  SendBuf_UART(ReadValue,sizeof(ReadValue));
      Start_Time(30);
      while((g_cUartStatus!=UARTSTATUS_RXERR)&&(g_cUartStatus!=UARTSTATUS_RXSUCC)&&(g_bOverTime==0));
      if((g_cUartStatus!=UARTSTATUS_RXSUCC)||(RCVCMD_SL025x!=0x05)||(RCVSTA_SL025x!=0)) return;
      //Check value	 
      lPurseValue=g_cRxBuf[7];
      lPurseValue=(lPurseValue<<8)+g_cRxBuf[6];
      lPurseValue=(lPurseValue<<8)+g_cRxBuf[5];
      lPurseValue=(lPurseValue<<8)+g_cRxBuf[4];
      if(lPurseValue!=0x01000000+0x20000000-0x00000003) return;
      BuzzerOn();
      //Glare Red_Led to indicate working ok
      SendBuf_UART(TurnOnRedLed,sizeof(TurnOnRedLed));
      Start_Time(30);
      while((g_cUartStatus!=UARTSTATUS_RXERR)&&(g_cUartStatus!=UARTSTATUS_RXSUCC)&&(g_bOverTime==0));
      Start_Time(30);
      while(g_bOverTime==0);
      SendBuf_UART(TurnOffRedLed,sizeof(TurnOffRedLed));
      Start_Time(30);
      while((g_cUartStatus!=UARTSTATUS_RXERR)&&(g_cUartStatus!=UARTSTATUS_RXSUCC)&&(g_bOverTime==0));
      break;



    case CARDTYPE_UL:
      SendBuf_UART(WriteULPage5,sizeof(WriteULPage5));
      Start_Time(30);
      while((g_cUartStatus!=UARTSTATUS_RXERR)&&(g_cUartStatus!=UARTSTATUS_RXSUCC)&&(g_bOverTime==0));
      if((g_cUartStatus!=UARTSTATUS_RXSUCC)||(RCVCMD_SL025x!=0x11)||(RCVSTA_SL025x!=0)) return;
      SendBuf_UART(ReadULPage5,sizeof(ReadULPage5));
      Start_Time(30);
      while((g_cUartStatus!=UARTSTATUS_RXERR)&&(g_cUartStatus!=UARTSTATUS_RXSUCC)&&(g_bOverTime==0));
      if((g_cUartStatus!=UARTSTATUS_RXSUCC)||(RCVCMD_SL025x!=0x10)||(RCVSTA_SL025x!=0)) return;
      if (memcmp(&WriteULPage5[4],&g_cRxBuf[4],4)!=0) return;
      BuzzerOn();
      //Glare Red_Led to indicate working ok
      SendBuf_UART(TurnOnRedLed,sizeof(TurnOnRedLed));
      Start_Time(30);
      while((g_cUartStatus!=UARTSTATUS_RXERR)&&(g_cUartStatus!=UARTSTATUS_RXSUCC)&&(g_bOverTime==0));
      Start_Time(30);
      while(g_bOverTime==0);
      SendBuf_UART(TurnOffRedLed,sizeof(TurnOffRedLed));
      Start_Time(30);
      while((g_cUartStatus!=UARTSTATUS_RXERR)&&(g_cUartStatus!=UARTSTATUS_RXSUCC)&&(g_bOverTime==0));
      break;
    default:
      break;
    }
}

void main(void)
{
  Init_Hardware();
  g_iTimer=0;
  lcd_init();

  while(1) 
	{
      lcd_clear();
      lcd_puts("RFID Reader");
      delay(150);
	  SL025M();


	}

}

I wanna show id & data tags on LCD, please help me!

:)
 
Last edited by a moderator:

Is your lcd_puts() function working? If yes, you can use the same function to output data tags on LCD. If your RFID tags are not characters then convert it to characters.
 
Re: [RFID] How to send id &amp; data cards to LCD 16x2

jayanth.devarayanadurga said:
Is your lcd_puts() function working? If yes, you can use the same function to output data tags on LCD. If your RFID tags are not characters then convert it to characters.
Click to expand...

How to convert it? Because I try lcd_putc(dat[len]); and LCD show "ffffuu" :-( not ID tags

- - - Updated - - -

Here, code software inteface between pc and module
http://www.thaieasyelec.net/archives/Manual/Mifare_stk_v2.rar
 

Re: [RFID] How to send id &amp; data cards to LCD 16x2

If your rfid data is in dat[] and if you are sure that it doesn't contain ascii characters then add 0x30 or decimal 48 to the elements to get the characters.

example lcd_putc(dat + 0x30); or lcd_putc(dat + 48);

can you please mention what are the values you are getting after reading the rfid tag? Try to send the read rfid tag to virtual terminal.

See ascii chart here https://www.asciitable.com/

Tell me what are the values of your rfid tag.
 
Last edited:
Hi, thanks you so much.
Have a nice day
I've done ^^
 

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