RFID RC522门禁系统「建议收藏」

2022-10-02 14:18:08 浏览数 (1)

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           RFID RC522门禁系统

RFID RC522门禁系统说明: 基于51单片机的RFID RC522门禁系统的主要功能是,在本系统中主要是演示了RFID RC522门禁系统,在单片机内部的RAM中IDBUFFER中存了学号:1505106001对应 16进制就是5b b6 18 51 ;然后在RFID RC522开卡系统中,为第一张卡在块地址0x08处,写入了学号,当卡中的内容和单片机上的内容相配时,门打开。 具体程序如下所示: MAIN.C

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#include "reg52.h"
#include "main.h"
#include "mfrc522.h"	
#include <string.h>
//M1卡的某一块写为如下格式,则该块为钱包,可接收扣款和充值命令
//4字节金额(低字节在前)+4字节金额取反+4字节金额+1字节块地址+1字节块地址取反+1字节块地址+1字节块地址取反 
//unsigned char code data2[4]  = {0x12,0,0,0};
unsigned char code DefaultKey[6] = {0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF}; 
unsigned char g_ucTempbuf[20];    
unsigned char idata MLastSelectedSnr[4];
unsigned char idata RevBuffer[30];  
unsigned char data IDBuffer[16]={0x59,0xB6,0x18,0x51,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00}; 
void ID_Verify();			   
void delay_ms(unsigned int ms);
void iccardcode()
{	     
unsigned char cmd;
unsigned char status;
cmd = RevBuffer[0];
switch(cmd)
{
case 1:     // Halt the card     //终止卡的操作
status= PcdHalt();;			
RevBuffer[0]=1;
RevBuffer[1]=status;
break;			
case 2:     // Request,Anticoll,Select,return CardType(2 bytes) CardSerialNo(4 bytes)
status= PcdRequest(RevBuffer[1],&RevBuffer[2]);
if(status!=0)
{
status= PcdRequest(RevBuffer[1],&RevBuffer[2]);
if(status!=0)				
{
RevBuffer[0]=1;	
RevBuffer[1]=status;
break;
}
}  
RevBuffer[0]=3;	
RevBuffer[1]=status;
break;
case 3:                         // 防冲突 读卡的系列号 MLastSelectedSnr
status = PcdAnticoll(&RevBuffer[2]);
if(status!=0)
{
RevBuffer[0]=1;	
RevBuffer[1]=status;
break;
}
memcpy(MLastSelectedSnr,&RevBuffer[2],4);
RevBuffer[0]=5;
RevBuffer[1]=status;
break;	
case 4:		                    // 选择卡 Select Card
status=PcdSelect(MLastSelectedSnr);
if(status!=MI_OK)
{
RevBuffer[0]=1;	
RevBuffer[1]=status;
break;
}
RevBuffer[0]=3;
RevBuffer[1]=status;			
break;
case 5:	    // Key loading into the MF RC500's EEPROM
status = PcdAuthState(RevBuffer[1], RevBuffer[3], DefaultKey, MLastSelectedSnr);// 校验卡密码
RevBuffer[0]=1;
RevBuffer[1]=status;			
break;							
case 6: 
RevBuffer[0]=1;
RevBuffer[1]=status;			
break;				
case 7:     
RevBuffer[0]=1;
RevBuffer[1]=status;			
break;
case 8:     // Read the mifare card
// 读卡
status=PcdRead(RevBuffer[1],&RevBuffer[2]);
if(status==0)
{RevBuffer[0]=17;}
else
{RevBuffer[0]=1;}
RevBuffer[1]=status;			
break;
case 9:     // Write the mifare card
// 写卡  下载密码
status=PcdWrite(RevBuffer[1],&RevBuffer[2]);
RevBuffer[0]=1;
RevBuffer[1]=status;			
break;
case 10:
PcdValue(RevBuffer[1],RevBuffer[2],&RevBuffer[3]);
RevBuffer[0]=1;	
RevBuffer[1]=status;
break;
case 12:    // 参数设置
PcdBakValue(RevBuffer[1], RevBuffer[2]);
RevBuffer[0]=1;	//contact
RevBuffer[1]=0;
break;		
}
}											 
/
//系统初始化
/
void InitializeSystem()
{
P0 = 0xFF; P1 = 0xFF; P3 = 0xFF;
SCON=0X50;			//设置为工作方式1
TMOD=0X20;			//设置计数器工作方式2
PCON=0X80;			//波特率加倍
TH1=0XF3;				//计数器初始值设置,注意波特率是4800的
TL1=0XF3;
ES=1;						//打开接收中断
EA=1;						//打开总中断
TR1=1;					//打开计数    
LED_GREEN = 1;
PcdReset();
PcdAntennaOff(); 
PcdAntennaOn();  
M500PcdConfigISOType( 'A' );
LED_GREEN = 0;
delay_10ms(10);	
LED_GREEN = 1;
delay_10ms(10);
LED_GREEN = 0;
}
/
//用T2做延时子程序
/
///
// 接收和发送中断
///
void isr_UART(void) interrupt 4 using 1
{
unsigned char len, i;
if(TI)
{
TI=0;
len=RevBuffer[0];
for(i=0;i<len 1;i  )
{
SBUF=RevBuffer[i];
while(!TI);
TI=0;			
}
REN=1;
}
}
void main( )
{    
InitializeSystem( );
ID_Verify();
}
void delay_ms(unsigned int ms)
{
unsigned int m,n;
for(m=ms;m>0;m--)
for(n=110;n>0;n--);
}
void ID_Verify()
{
while(1)
{
//寻卡
RevBuffer[0]=2;
RevBuffer[1]=0x52;
iccardcode();
if(RevBuffer[1]!=0)
{
continue;
}
TI=1;
//防冲突
RevBuffer[0]=0x03;
iccardcode();
if(RevBuffer[1]!=0)
{
continue;
}
TI=1;
//选择卡
RevBuffer[0]=0x04;
iccardcode();
if(RevBuffer[1]!=0)
{
continue;
}
TI=1;
//密码检验 
RevBuffer[0]=0x05;
RevBuffer[1]=0x61;
RevBuffer[3]=0x08;
iccardcode();
if(RevBuffer[1]!=0)
{
continue;
}
TI=1;
//读08块的16个字节数据
RevBuffer[0]=0x08;
RevBuffer[1]=0x08;
iccardcode();
if(RevBuffer[1]!=0)
{
continue;
}
if((RevBuffer[2]==IDBuffer[0])&&(RevBuffer[3]==IDBuffer[1])&&(RevBuffer[4]==IDBuffer[2])&&(RevBuffer[5]==IDBuffer[3]))
{
DOOR_SWITCH=0;
delay_ms(5000);
DOOR_SWITCH=1;
}
TI=1;
}
}

MAIN.H

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//
//端口定义
/
//MFRC522
sbit     MF522_RST  =    P1^4;                   //RC500片选
sbit     MF522_NSS  =    P1^0;
sbit     MF522_SCK  =    P1^1;
sbit     MF522_SI   =    P1^2;
sbit     MF522_SO   =    P1^3;
//指示灯
sbit     LED_GREEN  =    P1^5; 
//继电器
sbit     DOOR_SWITCH = P1^6;    
/
//函数原型
/
void InitializeSystem();                                   
#define BAUD_115200             256 - (OSC_FREQ/192L)/115200L   // 255
#define BAUD_57600              256 - (OSC_FREQ/192L)/57600L    // 254
#define BAUD_38400              256 - (OSC_FREQ/192L)/38400L    // 253
#define BAUD_28800              256 - (OSC_FREQ/192L)/28800L    // 252
#define BAUD_19200              256 - (OSC_FREQ/192L)/19200L    // 250
#define BAUD_14400              256 - (OSC_FREQ/192L)/14400L    // 248
#define BAUD_9600               256 - (OSC_FREQ/192L)/9600L     // 244                                   
#define OSC_FREQ                22118400L
//#define  OSC_FREQ        7372800L
#define OSC_FREQ          22118400L
#define  RCAP2_50us      65536L - OSC_FREQ/40417L
#define  RCAP2_1ms       65536L - OSC_FREQ/2000L
#define  RCAP2_10ms      65536L - OSC_FREQ/1200L
#define  TIME0_500us     65536L - OSC_FREQ/8000L
#define  TIME0_10ms      65536L - OSC_FREQ/200
#define CALL_isr_UART()         TI = 1
#define TRUE 1
#define FALSE 0

RC522.C

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#include <intrins.h>
#include "reg52.h"
#include "main.h"
#include "mfrc522.h"
#include <string.h> 
#define MAXRLEN 18                        
/
//功    能:寻卡
//参数说明: req_code[IN]:寻卡方式
//                0x52 = 寻感应区内所有符合14443A标准的卡
//                0x26 = 寻未进入休眠状态的卡
//          pTagType[OUT]:卡片类型代码
//                0x4400 = Mifare_UltraLight
//                0x0400 = Mifare_One(S50)
//                0x0200 = Mifare_One(S70)
//                0x0800 = Mifare_Pro(X)
//                0x4403 = Mifare_DESFire
//返    回: 成功返回MI_OK
/
char PcdRequest(unsigned char req_code,unsigned char *pTagType)
{
char status;  
unsigned int  unLen;
unsigned char ucComMF522Buf[MAXRLEN]; 
//  unsigned char xTest ;
ClearBitMask(Status2Reg,0x08);
WriteRawRC(BitFramingReg,0x07);
//  xTest = ReadRawRC(BitFramingReg);
//  if(xTest == 0x07 )
//   { LED_GREEN  =0 ;}
// else {LED_GREEN =1 ;while(1){}}
SetBitMask(TxControlReg,0x03);
ucComMF522Buf[0] = req_code;
status = PcdComMF522(PCD_TRANSCEIVE,ucComMF522Buf,1,ucComMF522Buf,&unLen);
//     if(status  == MI_OK )
//   { LED_GREEN  =0 ;}
//   else {LED_GREEN =1 ;}
if ((status == MI_OK) && (unLen == 0x10))
{    
*pTagType     = ucComMF522Buf[0];
*(pTagType 1) = ucComMF522Buf[1];
}
else
{   status = MI_ERR;   }
return status;
}
/
//功    能:防冲撞
//参数说明: pSnr[OUT]:卡片序列号,4字节
//返    回: 成功返回MI_OK
/  
char PcdAnticoll(unsigned char *pSnr)
{
char status;
unsigned char i,snr_check=0;
unsigned int  unLen;
unsigned char ucComMF522Buf[MAXRLEN]; 
ClearBitMask(Status2Reg,0x08);
WriteRawRC(BitFramingReg,0x00);
ClearBitMask(CollReg,0x80);
ucComMF522Buf[0] = PICC_ANTICOLL1;
ucComMF522Buf[1] = 0x20;
status = PcdComMF522(PCD_TRANSCEIVE,ucComMF522Buf,2,ucComMF522Buf,&unLen);
if (status == MI_OK)
{
for (i=0; i<4; i  )
{   
*(pSnr i)  = ucComMF522Buf[i];
snr_check ^= ucComMF522Buf[i];
}
if (snr_check != ucComMF522Buf[i])
{   status = MI_ERR;    }
}
SetBitMask(CollReg,0x80);
return status;
}
/
//功    能:选定卡片
//参数说明: pSnr[IN]:卡片序列号,4字节
//返    回: 成功返回MI_OK
/
char PcdSelect(unsigned char *pSnr)
{
char status;
unsigned char i;
unsigned int  unLen;
unsigned char ucComMF522Buf[MAXRLEN]; 
ucComMF522Buf[0] = PICC_ANTICOLL1;
ucComMF522Buf[1] = 0x70;
ucComMF522Buf[6] = 0;
for (i=0; i<4; i  )
{
ucComMF522Buf[i 2] = *(pSnr i);
ucComMF522Buf[6]  ^= *(pSnr i);
}
CalulateCRC(ucComMF522Buf,7,&ucComMF522Buf[7]);
ClearBitMask(Status2Reg,0x08);
status = PcdComMF522(PCD_TRANSCEIVE,ucComMF522Buf,9,ucComMF522Buf,&unLen);
if ((status == MI_OK) && (unLen == 0x18))
{   status = MI_OK;  }
else
{   status = MI_ERR;    }
return status;
}
/
//功    能:验证卡片密码
//参数说明: auth_mode[IN]: 密码验证模式
//                 0x60 = 验证A密钥
//                 0x61 = 验证B密钥 
//          addr[IN]:块地址
//          pKey[IN]:密码
//          pSnr[IN]:卡片序列号,4字节
//返    回: 成功返回MI_OK
/               
char PcdAuthState(unsigned char auth_mode,unsigned char addr,unsigned char *pKey,unsigned char *pSnr)
{
char status;
unsigned int  unLen;
unsigned char i,ucComMF522Buf[MAXRLEN]; 
ucComMF522Buf[0] = auth_mode;
ucComMF522Buf[1] = addr;
for (i=0; i<6; i  )
{    ucComMF522Buf[i 2] = *(pKey i);   }
for (i=0; i<6; i  )
{    ucComMF522Buf[i 8] = *(pSnr i);   }
//   memcpy(&ucComMF522Buf[2], pKey, 6); 
//   memcpy(&ucComMF522Buf[8], pSnr, 4); 
status = PcdComMF522(PCD_AUTHENT,ucComMF522Buf,12,ucComMF522Buf,&unLen);
if ((status != MI_OK) || (!(ReadRawRC(Status2Reg) & 0x08)))
{   status = MI_ERR;   }
return status;
}
/
//功    能:读取M1卡一块数据
//参数说明: addr[IN]:块地址
//          pData[OUT]:读出的数据,16字节
//返    回: 成功返回MI_OK
/ 
char PcdRead(unsigned char addr,unsigned char *pData)
{
char status;
unsigned int  unLen;
unsigned char i,ucComMF522Buf[MAXRLEN]; 
ucComMF522Buf[0] = PICC_READ;
ucComMF522Buf[1] = addr;
CalulateCRC(ucComMF522Buf,2,&ucComMF522Buf[2]);
status = PcdComMF522(PCD_TRANSCEIVE,ucComMF522Buf,4,ucComMF522Buf,&unLen);
if ((status == MI_OK) && (unLen == 0x90))
//   {   memcpy(pData, ucComMF522Buf, 16);   }
{
for (i=0; i<16; i  )
{    *(pData i) = ucComMF522Buf[i];   }
}
else
{   status = MI_ERR;   }
return status;
}
/
//功    能:写数据到M1卡一块
//参数说明: addr[IN]:块地址
//          pData[IN]:写入的数据,16字节
//返    回: 成功返回MI_OK
/                  
char PcdWrite(unsigned char addr,unsigned char *pData)
{
char status;
unsigned int  unLen;
unsigned char i,ucComMF522Buf[MAXRLEN]; 
ucComMF522Buf[0] = PICC_WRITE;
ucComMF522Buf[1] = addr;
CalulateCRC(ucComMF522Buf,2,&ucComMF522Buf[2]);
status = PcdComMF522(PCD_TRANSCEIVE,ucComMF522Buf,4,ucComMF522Buf,&unLen);
if ((status != MI_OK) || (unLen != 4) || ((ucComMF522Buf[0] & 0x0F) != 0x0A))
{   status = MI_ERR;   }
if (status == MI_OK)
{
//memcpy(ucComMF522Buf, pData, 16);
for (i=0; i<16; i  )
{    ucComMF522Buf[i] = *(pData i);   }
CalulateCRC(ucComMF522Buf,16,&ucComMF522Buf[16]);
status = PcdComMF522(PCD_TRANSCEIVE,ucComMF522Buf,18,ucComMF522Buf,&unLen);
if ((status != MI_OK) || (unLen != 4) || ((ucComMF522Buf[0] & 0x0F) != 0x0A))
{   status = MI_ERR;   }
}
return status;
}
/
//功    能:命令卡片进入休眠状态
//返    回: 成功返回MI_OK
/
char PcdHalt(void)
{
char status;
unsigned int  unLen;
unsigned char ucComMF522Buf[MAXRLEN]; 
ucComMF522Buf[0] = PICC_HALT;
ucComMF522Buf[1] = 0;
CalulateCRC(ucComMF522Buf,2,&ucComMF522Buf[2]);
status = PcdComMF522(PCD_TRANSCEIVE,ucComMF522Buf,4,ucComMF522Buf,&unLen);
return MI_OK;
}
/
//用MF522计算CRC16函数
/
void CalulateCRC(unsigned char *pIndata,unsigned char len,unsigned char *pOutData)
{
unsigned char i,n;
ClearBitMask(DivIrqReg,0x04);
WriteRawRC(CommandReg,PCD_IDLE);
SetBitMask(FIFOLevelReg,0x80);
for (i=0; i<len; i  )
{   WriteRawRC(FIFODataReg, *(pIndata i));   }
WriteRawRC(CommandReg, PCD_CALCCRC);
i = 0xFF;
do 
{
n = ReadRawRC(DivIrqReg);
i--;
}
while ((i!=0) && !(n&0x04));
pOutData[0] = ReadRawRC(CRCResultRegL);
pOutData[1] = ReadRawRC(CRCResultRegM);
}
/
//功    能:复位RC522
//返    回: 成功返回MI_OK
/
char PcdReset(void)
{
MF522_RST=1;
_nop_();
MF522_RST=0;
_nop_();
MF522_RST=1;
_nop_();
WriteRawRC(CommandReg,PCD_RESETPHASE);
_nop_();
WriteRawRC(ModeReg,0x3D);            //和Mifare卡通讯,CRC初始值0x6363
WriteRawRC(TReloadRegL,30);           
WriteRawRC(TReloadRegH,0);
WriteRawRC(TModeReg,0x8D);
WriteRawRC(TPrescalerReg,0x3E);
WriteRawRC(TxAutoReg,0x40);     
return MI_OK;
}
//
//设置RC632的工作方式 
//
char M500PcdConfigISOType(unsigned char type)
{
if (type == 'A')                     //ISO14443_A
{ 
ClearBitMask(Status2Reg,0x08);
/*     WriteRawRC(CommandReg,0x20);    //as default   
WriteRawRC(ComIEnReg,0x80);     //as default
WriteRawRC(DivlEnReg,0x0);      //as default
WriteRawRC(ComIrqReg,0x04);     //as default
WriteRawRC(DivIrqReg,0x0);      //as default
WriteRawRC(Status2Reg,0x0);//80    //trun off temperature sensor
WriteRawRC(WaterLevelReg,0x08); //as default
WriteRawRC(ControlReg,0x20);    //as default
WriteRawRC(CollReg,0x80);    //as default
*/
WriteRawRC(ModeReg,0x3D);//3F
/*	   WriteRawRC(TxModeReg,0x0);      //as default???
WriteRawRC(RxModeReg,0x0);      //as default???
WriteRawRC(TxControlReg,0x80);  //as default???
WriteRawRC(TxSelReg,0x10);      //as default???
*/
WriteRawRC(RxSelReg,0x86);//84
//      WriteRawRC(RxThresholdReg,0x84);//as default
//      WriteRawRC(DemodReg,0x4D);      //as default
//      WriteRawRC(ModWidthReg,0x13);//26
WriteRawRC(RFCfgReg,0x7F);   //4F
/*   WriteRawRC(GsNReg,0x88);        //as default???
WriteRawRC(CWGsCfgReg,0x20);    //as default???
WriteRawRC(ModGsCfgReg,0x20);   //as default???
*/
WriteRawRC(TReloadRegL,30);//tmoLength);// TReloadVal = 'h6a =tmoLength(dec) 
WriteRawRC(TReloadRegH,0);
WriteRawRC(TModeReg,0x8D);
WriteRawRC(TPrescalerReg,0x3E);
//     PcdSetTmo(106);
delay_10ms(1);
PcdAntennaOn();
}
else{ return -1; }
return MI_OK;
}
/
//功    能:读RC632寄存器
//参数说明:Address[IN]:寄存器地址
//返    回:读出的值
/
unsigned char ReadRawRC(unsigned char Address)
{
unsigned char i, ucAddr;
unsigned char ucResult=0;
MF522_SCK = 0;
MF522_NSS = 0;
ucAddr = ((Address<<1)&0x7E)|0x80;
for(i=8;i>0;i--)
{
MF522_SI = ((ucAddr&0x80)==0x80);
MF522_SCK = 1;
ucAddr <<= 1;
MF522_SCK = 0;
}
for(i=8;i>0;i--)
{
MF522_SCK = 1;
ucResult <<= 1;
ucResult|=(bit)MF522_SO;
MF522_SCK = 0;
}
MF522_NSS = 1;
MF522_SCK = 1;
return ucResult;
}
/
//功    能:写RC632寄存器
//参数说明:Address[IN]:寄存器地址
//          value[IN]:写入的值
/
void WriteRawRC(unsigned char Address, unsigned char value)
{  
unsigned char i, ucAddr;
MF522_SCK = 0;
MF522_NSS = 0;
ucAddr = ((Address<<1)&0x7E);
for(i=8;i>0;i--)
{
MF522_SI = ((ucAddr&0x80)==0x80);
MF522_SCK = 1;
ucAddr <<= 1;
MF522_SCK = 0;
}
for(i=8;i>0;i--)
{
MF522_SI = ((value&0x80)==0x80);
MF522_SCK = 1;
value <<= 1;
MF522_SCK = 0;
}
MF522_NSS = 1;
MF522_SCK = 1;
}
/
//功    能:置RC522寄存器位
//参数说明:reg[IN]:寄存器地址
//          mask[IN]:置位值
/
void SetBitMask(unsigned char reg,unsigned char mask)  
{
char tmp = 0x0;
tmp = ReadRawRC(reg);
WriteRawRC(reg,tmp | mask);  // set bit mask
}
/
//功    能:清RC522寄存器位
//参数说明:reg[IN]:寄存器地址
//          mask[IN]:清位值
/
void ClearBitMask(unsigned char reg,unsigned char mask)  
{
char tmp = 0x0;
tmp = ReadRawRC(reg);
WriteRawRC(reg, tmp & ~mask);  // clear bit mask
} 
/
//功    能:通过RC522和ISO14443卡通讯
//参数说明:Command[IN]:RC522命令字
//          pInData[IN]:通过RC522发送到卡片的数据
//          InLenByte[IN]:发送数据的字节长度
//          pOutData[OUT]:接收到的卡片返回数据
//          *pOutLenBit[OUT]:返回数据的位长度
/
char PcdComMF522(unsigned char Command, 
unsigned char *pInData, 
unsigned char InLenByte,
unsigned char *pOutData, 
unsigned int  *pOutLenBit)
{
char status = MI_ERR;
unsigned char irqEn   = 0x00;
unsigned char waitFor = 0x00;
unsigned char lastBits;
unsigned char n;
unsigned int i;
switch (Command)
{
case PCD_AUTHENT:
irqEn   = 0x12;
waitFor = 0x10;
break;
case PCD_TRANSCEIVE:
irqEn   = 0x77;
waitFor = 0x30;
break;
default:
break;
}
WriteRawRC(ComIEnReg,irqEn|0x80);
ClearBitMask(ComIrqReg,0x80);
WriteRawRC(CommandReg,PCD_IDLE);
SetBitMask(FIFOLevelReg,0x80);
for (i=0; i<InLenByte; i  )
{   WriteRawRC(FIFODataReg, pInData[i]);    }
WriteRawRC(CommandReg, Command);
if (Command == PCD_TRANSCEIVE)
{    SetBitMask(BitFramingReg,0x80);  }
//    i = 600;//根据时钟频率调整,操作M1卡最大等待时间25ms
i = 2000;
do 
{
n = ReadRawRC(ComIrqReg);
i--;
}
while ((i!=0) && !(n&0x01) && !(n&waitFor));
ClearBitMask(BitFramingReg,0x80);
if (i!=0)
{    
if(!(ReadRawRC(ErrorReg)&0x1B))
{
status = MI_OK;
if (n & irqEn & 0x01)
{   status = MI_NOTAGERR;   }
if (Command == PCD_TRANSCEIVE)
{
n = ReadRawRC(FIFOLevelReg);
lastBits = ReadRawRC(ControlReg) & 0x07;
if (lastBits)
{   *pOutLenBit = (n-1)*8   lastBits;   }
else
{   *pOutLenBit = n*8;   }
if (n == 0)
{   n = 1;    }
if (n > MAXRLEN)
{   n = MAXRLEN;   }
for (i=0; i<n; i  )
{   pOutData[i] = ReadRawRC(FIFODataReg);    }
}
}
else
{   status = MI_ERR;   }
}
SetBitMask(ControlReg,0x80);           // stop timer now
WriteRawRC(CommandReg,PCD_IDLE); 
return status;
}
/
//开启天线  
//每次启动或关闭天险发射之间应至少有1ms的间隔
/
void PcdAntennaOn()
{
unsigned char i;
i = ReadRawRC(TxControlReg);
if (!(i & 0x03))
{
SetBitMask(TxControlReg, 0x03);
}
}
/
//关闭天线
/
void PcdAntennaOff()
{
ClearBitMask(TxControlReg, 0x03);
}
/
//功    能:扣款和充值
//参数说明: dd_mode[IN]:命令字
//               0xC0 = 扣款
//               0xC1 = 充值
//          addr[IN]:钱包地址
//          pValue[IN]:4字节增(减)值,低位在前
//返    回: 成功返回MI_OK
/                 
char PcdValue(unsigned char dd_mode,unsigned char addr,unsigned char *pValue)
{
char status;
unsigned int  unLen;
unsigned char ucComMF522Buf[MAXRLEN]; 
ucComMF522Buf[0] = dd_mode;
ucComMF522Buf[1] = addr;
CalulateCRC(ucComMF522Buf,2,&ucComMF522Buf[2]);
status = PcdComMF522(PCD_TRANSCEIVE,ucComMF522Buf,4,ucComMF522Buf,&unLen);
if ((status != MI_OK) || (unLen != 4) || ((ucComMF522Buf[0] & 0x0F) != 0x0A))
{   status = MI_ERR;   }
if (status == MI_OK)
{
memcpy(ucComMF522Buf, pValue, 4);
//        for (i=0; i<16; i  )
//        {    ucComMF522Buf[i] = *(pValue i);   }
CalulateCRC(ucComMF522Buf,4,&ucComMF522Buf[4]);
unLen = 0;
status = PcdComMF522(PCD_TRANSCEIVE,ucComMF522Buf,6,ucComMF522Buf,&unLen);
if (status != MI_ERR)
{    status = MI_OK;    }
}
if (status == MI_OK)
{
ucComMF522Buf[0] = PICC_TRANSFER;
ucComMF522Buf[1] = addr;
CalulateCRC(ucComMF522Buf,2,&ucComMF522Buf[2]); 
status = PcdComMF522(PCD_TRANSCEIVE,ucComMF522Buf,4,ucComMF522Buf,&unLen);
if ((status != MI_OK) || (unLen != 4) || ((ucComMF522Buf[0] & 0x0F) != 0x0A))
{   status = MI_ERR;   }
}
return status;
}
/
//功    能:备份钱包
//参数说明: sourceaddr[IN]:源地址
//          goaladdr[IN]:目标地址
//返    回: 成功返回MI_OK
/
char PcdBakValue(unsigned char sourceaddr, unsigned char goaladdr)
{
char status;
unsigned int  unLen;
unsigned char ucComMF522Buf[MAXRLEN]; 
ucComMF522Buf[0] = PICC_RESTORE;
ucComMF522Buf[1] = sourceaddr;
CalulateCRC(ucComMF522Buf,2,&ucComMF522Buf[2]);
status = PcdComMF522(PCD_TRANSCEIVE,ucComMF522Buf,4,ucComMF522Buf,&unLen);
if ((status != MI_OK) || (unLen != 4) || ((ucComMF522Buf[0] & 0x0F) != 0x0A))
{   status = MI_ERR;   }
if (status == MI_OK)
{
ucComMF522Buf[0] = 0;
ucComMF522Buf[1] = 0;
ucComMF522Buf[2] = 0;
ucComMF522Buf[3] = 0;
CalulateCRC(ucComMF522Buf,4,&ucComMF522Buf[4]);
status = PcdComMF522(PCD_TRANSCEIVE,ucComMF522Buf,6,ucComMF522Buf,&unLen);
if (status != MI_ERR)
{    status = MI_OK;    }
}
if (status != MI_OK)
{    return MI_ERR;   }
ucComMF522Buf[0] = PICC_TRANSFER;
ucComMF522Buf[1] = goaladdr;
CalulateCRC(ucComMF522Buf,2,&ucComMF522Buf[2]);
status = PcdComMF522(PCD_TRANSCEIVE,ucComMF522Buf,4,ucComMF522Buf,&unLen);
if ((status != MI_OK) || (unLen != 4) || ((ucComMF522Buf[0] & 0x0F) != 0x0A))
{   status = MI_ERR;   }
return status;
}
///
// Delay 10ms
///
void delay_10ms(unsigned int _10ms)
{
#ifndef NO_TIMER2
RCAP2LH = RCAP2_10ms;
T2LH    = RCAP2_10ms;
TR2 = TRUE;
while (_10ms--)
{
while (!TF2);
TF2 = FALSE;
}
TR2 = FALSE;
#else
while (_10ms--)
{
delay_50us(19);
if (CmdValid)
return;
delay_50us(20);
if (CmdValid)
return;
delay_50us(20);
if (CmdValid)
return;
delay_50us(20);
if (CmdValid)
return;
delay_50us(20);
if (CmdValid )
return;
delay_50us(20);
if (CmdValid)
return;
delay_50us(20);
if (CmdValid)
return;
delay_50us(20);
if (CmdValid)
return;
delay_50us(20);
if (CmdValid)
return;
delay_50us(19);
if (CmdValid)
return;
}
#endif
}

RC522.H

代码语言:javascript复制
在这里插入代码片
/
//函数原型
/
char PcdReset(void);
void PcdAntennaOn(void);
void PcdAntennaOff(void);
char PcdRequest(unsigned char req_code,unsigned char *pTagType);   
char PcdAnticoll(unsigned char *pSnr);
char PcdSelect(unsigned char *pSnr);         
char PcdAuthState(unsigned char auth_mode,unsigned char addr,unsigned char *pKey,unsigned char *pSnr);     
char PcdRead(unsigned char addr,unsigned char *pData);     
char PcdWrite(unsigned char addr,unsigned char *pData);    
char PcdValue(unsigned char dd_mode,unsigned char addr,unsigned char *pValue);   
char PcdBakValue(unsigned char sourceaddr, unsigned char goaladdr);                                 
char PcdHalt(void);
char PcdComMF522(unsigned char Command, 
unsigned char *pInData, 
unsigned char InLenByte,
unsigned char *pOutData, 
unsigned int  *pOutLenBit);
void CalulateCRC(unsigned char *pIndata,unsigned char len,unsigned char *pOutData);
void WriteRawRC(unsigned char Address,unsigned char value);
unsigned char ReadRawRC(unsigned char Address); 
void SetBitMask(unsigned char reg,unsigned char mask); 
void ClearBitMask(unsigned char reg,unsigned char mask); 
char M500PcdConfigISOType(unsigned char type);
void delay_10ms(unsigned int _10ms);
void iccardcode();
char PcdBakValue(unsigned char sourceaddr, unsigned char goaladdr);
char PcdValue(unsigned char dd_mode,unsigned char addr,unsigned char *pValue);
/
//MF522命令字
/
#define PCD_IDLE              0x00               //取消当前命令
#define PCD_AUTHENT           0x0E               //验证密钥
#define PCD_RECEIVE           0x08               //接收数据
#define PCD_TRANSMIT          0x04               //发送数据
#define PCD_TRANSCEIVE        0x0C               //发送并接收数据
#define PCD_RESETPHASE        0x0F               //复位
#define PCD_CALCCRC           0x03               //CRC计算
/
//Mifare_One卡片命令字
/
#define PICC_REQIDL           0x26               //寻天线区内未进入休眠状态
#define PICC_REQALL           0x52               //寻天线区内全部卡
#define PICC_ANTICOLL1        0x93               //防冲撞
#define PICC_ANTICOLL2        0x95               //防冲撞
#define PICC_AUTHENT1A        0x60               //验证A密钥
#define PICC_AUTHENT1B        0x61               //验证B密钥
#define PICC_READ             0x30               //读块
#define PICC_WRITE            0xA0               //写块
#define PICC_DECREMENT        0xC0               //扣款
#define PICC_INCREMENT        0xC1               //充值
#define PICC_RESTORE          0xC2               //调块数据到缓冲区
#define PICC_TRANSFER         0xB0               //保存缓冲区中数据
#define PICC_HALT             0x50               //休眠
/
//MF522 FIFO长度定义
/
#define DEF_FIFO_LENGTH       64                 //FIFO size=64byte
/
//MF522寄存器定义
/
// PAGE 0
#define     RFU00                 0x00    
#define     CommandReg            0x01    
#define     ComIEnReg             0x02    
#define     DivlEnReg             0x03    
#define     ComIrqReg             0x04    
#define     DivIrqReg             0x05
#define     ErrorReg              0x06    
#define     Status1Reg            0x07    
#define     Status2Reg            0x08    
#define     FIFODataReg           0x09
#define     FIFOLevelReg          0x0A
#define     WaterLevelReg         0x0B
#define     ControlReg            0x0C
#define     BitFramingReg         0x0D
#define     CollReg               0x0E
#define     RFU0F                 0x0F
// PAGE 1     
#define     RFU10                 0x10
#define     ModeReg               0x11
#define     TxModeReg             0x12
#define     RxModeReg             0x13
#define     TxControlReg          0x14
#define     TxAutoReg             0x15
#define     TxSelReg              0x16
#define     RxSelReg              0x17
#define     RxThresholdReg        0x18
#define     DemodReg              0x19
#define     RFU1A                 0x1A
#define     RFU1B                 0x1B
#define     MifareReg             0x1C
#define     RFU1D                 0x1D
#define     RFU1E                 0x1E
#define     SerialSpeedReg        0x1F
// PAGE 2    
#define     RFU20                 0x20  
#define     CRCResultRegM         0x21
#define     CRCResultRegL         0x22
#define     RFU23                 0x23
#define     ModWidthReg           0x24
#define     RFU25                 0x25
#define     RFCfgReg              0x26
#define     GsNReg                0x27
#define     CWGsCfgReg            0x28
#define     ModGsCfgReg           0x29
#define     TModeReg              0x2A
#define     TPrescalerReg         0x2B
#define     TReloadRegH           0x2C
#define     TReloadRegL           0x2D
#define     TCounterValueRegH     0x2E
#define     TCounterValueRegL     0x2F
// PAGE 3      
#define     RFU30                 0x30
#define     TestSel1Reg           0x31
#define     TestSel2Reg           0x32
#define     TestPinEnReg          0x33
#define     TestPinValueReg       0x34
#define     TestBusReg            0x35
#define     AutoTestReg           0x36
#define     VersionReg            0x37
#define     AnalogTestReg         0x38
#define     TestDAC1Reg           0x39  
#define     TestDAC2Reg           0x3A   
#define     TestADCReg            0x3B   
#define     RFU3C                 0x3C   
#define     RFU3D                 0x3D   
#define     RFU3E                 0x3E   
#define     RFU3F		  0x3F
/
//和MF522通讯时返回的错误代码
/
#define MI_OK                          0
#define MI_NOTAGERR                    (-1)
#define MI_ERR                         (-2)
代码语言:javascript复制
在这里插入代码片
当向单片机发送控制的数据的时候要注意的规定为:
发送时格式为:数据长度 控制位(RevBuffer[0]) 数据(RevBuffer[]。。。。。。。。。。。)
发送时格式为:数据长度(RevBuffer[0]) 状态(RevBuffer[1])  数据(RevBuffer[2]。。。)
(1)0x01时中止卡
控制位为 0x01时中止卡 格式:01 01  数据长度(0x01) RevBuffer[0](0x01)
返回的数据格式为:
(2)寻卡
//功    能:寻卡
//参数说明: req_code[IN]:寻卡方式
//                0x52 = 寻感应区内所有符合14443A标准的卡
//                0x26 = 寻未进入休眠状态的卡
//          pTagType[OUT]:卡片类型代码
//                0x4400 = Mifare_UltraLight
//                0x0400 = Mifare_One(S50)
//                0x0200 = Mifare_One(S70)
//                0x0800 = Mifare_Pro(X)
//                0x4403 = Mifare_DESFire
//返    回: 成功返回MI_OK
控制位为 0x02时寻卡	  格式:02 02 52||26 
寻卡失败返回:数据长度   状态 eg: 01 FE
寻卡成功返回数据的格式为:数据长度   状态   卡片类型代码   eg: 03 00 04 00
(3)防冲突 读卡的系列号 MLastSelectedSnr
/
//功    能:防冲撞
//参数说明: pSnr[OUT]:卡片序列号,4字节
//返    回: 成功返回MI_OK
/ 
char PcdAnticoll(unsigned char *pSnr)
status = PcdAnticoll(&RevBuffer[2]);
控制位为 0x03 时防冲撞	格式:01 03
失败返回: 01 FE
成功返回:数据长度   状态   卡片序列号
(4)
/
//功    能:选定卡片
//参数说明: pSnr[IN]:卡片序列号,4字节
//返    回: 成功返回MI_OK
/
char PcdSelect(unsigned char *pSnr)
status=PcdSelect(MLastSelectedSnr);
发送:01 04 数据长度   控制位
失败返回:01 FE
成功返回:01 00  读卡的系列号2个字节  eg:03 00 62 63
(5)
/
//功    能:验证卡片密码
//参数说明: auth_mode[IN]: 密码验证模式
//                 0x60 = 验证A密钥
//                 0x61 = 验证B密钥 
//          addr[IN]:块地址 0x00到0x40
//          pKey[IN]:密码
//          pSnr[IN]:卡片序列号,4字节
//返    回: 成功返回MI_OK
/               
char PcdAuthState(unsigned char auth_mode,unsigned char addr,unsigned char *pKey,unsigned char *pSnr)
status = PcdAuthState(RevBuffer[1], RevBuffer[3], DefaultKey, MLastSelectedSnr);// 校验卡密码
发送格式:04 05 61 00 01	 数据长度   密码验证模式   空   块地址
失败返回:01 FE
成功返回:01 00 
(8)读取M1卡一块数据
/
//功    能:读取M1卡一块数据
//参数说明: addr[IN]:块地址
//          pData[OUT]:读出的数据,16字节
//返    回: 成功返回MI_OK
/ 
char PcdRead(unsigned char addr,unsigned char *pData)
status=PcdRead(RevBuffer[1],&RevBuffer[2]);
发送格式:02 08 01 数据长度   控制位   块地址
失败返回格式:01 FE 数据长度   状态
成功返回格式:数据长度   状态   16字节数据 eg:11 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 
(9)0x09
/
//功    能:写数据到M1卡一块
//参数说明: addr[IN]:块地址
//          pData[IN]:写入的数据,16字节
//返    回: 成功返回MI_OK
/                  
char PcdWrite(unsigned char addr,unsigned char *pData)
status=PcdWrite(RevBuffer[1],&RevBuffer[2]);
发送格式:12 09  01 01 02 03 04 05 06 07 08 09  0A 0B 0C 0D 0E 0F 10数据长度1字节   控制位1字节   块地址1字节 16字节数据
失败返回格式:01 FE 数据长度   状态
成功返回格式:01 00 数据长度   状态
(10)0X0A
/
//功    能:扣款和充值
//参数说明: dd_mode[IN]:命令字
//               0xC0 = 扣款
//               0xC1 = 充值
//          addr[IN]:钱包地址
//          pValue[IN]:4字节增(减)值,低位在前
//返    回: 成功返回MI_OK
/                 
char PcdValue(unsigned char dd_mode,unsigned char addr,unsigned char *pValue)
PcdValue(RevBuffer[1],RevBuffer[2],&RevBuffer[3]);
发送格式:07 0A  C0  01 00 00 00 01   数据长度1字节   控制位1字节   扣充值命令字1字节   钱包地址1字节   增减值4字节
失败返回格式:01 FE 数据长度   失败状态
成功返回格式:01 00 数据长度   成功状态
(11)测试风鸣器ox0b
发送格式:01 OB
失败返回格式:01 FE 数据长度   失败状态
成功返回格式:01 00 数据长度   成功状态
(12)备份钱包0x0c
/
//功    能:备份钱包
//参数说明: sourceaddr[IN]:源地址
//          goaladdr[IN]:目标地址
//返    回: 成功返回MI_OK
/
char PcdBakValue(unsigned char sourceaddr, unsigned char goaladdr)
PcdBakValue(RevBuffer[1], RevBuffer[2]);
发送格式:03 0C  01  02    数据长度3字节   控制位1字节   源地址1字节   目标地址1字节
失败返回格式:01 FE 数据长度   失败状态
成功返回格式:01 00 数据长度   成功状态
(13)//设置通讯波特率0x0d
发送格式:02 0d  01 数据长度3字节   控制位1字节   波特率控制位1字节
失败返回格式:01 FE 数据长度   失败状态
成功返回格式:01 00 数据长度   成功状态
汇总:
控制位为 0x01时中止卡 格式:01 01  数据长度(0x01) RevBuffer[0](0x01)
控制位为 0x02时寻卡	  格式:02 02 52||26 
控制位为 0x03 时防冲撞	格式:01 03
选定卡发送:01 04 数据长度   控制位
密码验证发送格式:04 05 61 00 01	 数据长度   密码验证模式   空   块地址
读发送格式:02 08 01 数据长度   控制位   块地址
写发送格式:12 09  01 01 02 03 04 05 06 07 08 09  0A 0B 0C 0D 0E 0F 10数据长度1字节   控制位1字节   块地址1字节 16字节数据
当要为钱包时要写成如下格式
12 09  04 12 34 56 78 ED CB A9 87 12  34 56 78 04 FB 04 FB
扣充值发送格式:07 0A  C0  01 00 00 00 01   数据长度1字节   控制位1字节   扣充值命令字1字节   钱包地址1字节   增减值4字节
备份钱包发送格式:03 0c  01  02    数据长度3字节   控制位1字节   源地址1字节   目标地址1字节
智能门禁系统中
用08.09.0A.0B块
08块中16个字节存放学号:1505106001 对应的十六进制数:59 B6 18 51 00 00 00 00 00 00 00 00 00 00 00 00
09块用于存放姓名16个字节可以存放8个汉字 
0A块保留
0B块为保留
0C为密码此处为简单直接保留原始密码
02 02 52
01 03
01 04
04 05 61 00 08
020808

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