51單片機讀寫RC522卡參考例程及上位機調試軟件源碼

ID:265916 · 發表于 2018-1-22 21:56

原理圖：

RC522上位機delphi軟件源碼與界面：

單片機源程序如下:

#include "reg52.h"
#include "main.h"
#include "mfrc522.h"
#include <string.h>
//M1卡的某一塊寫為如下格式，則該塊為錢包，可接收扣款和充值命令
//4字節金額（低字節在前）＋4字節金額取反＋4字節金額＋1字節塊地址＋1字節塊地址取反＋1字節塊地址＋1字節塊地址取反
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 SerBuffer[20];
bit CmdValid;
void iccardcode()
{
unsigned char cmd;
unsigned char status;
cmd = RevBuffer[0];
switch(cmd)
{
case 1: // Halt the card //終止卡的操作
status= PcdHalt();;
RevBuffer[0]=1;
RevBuffer[1]=status;
break;
case 2: // Request,Anticoll,Select,return CardType(2 bytes)+CardSerialNo(4 bytes)
// 尋卡，防沖突，選擇卡返回卡類型（2 bytes）+ 卡系列號(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: // 防沖突讀卡的系列號 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: // 選擇卡 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);// 校驗卡密碼
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
// 讀卡
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
// 寫卡下載密碼
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: // 參數設置
PcdBakValue(RevBuffer[1], RevBuffer[2]);
RevBuffer[0]=1; //contact
RevBuffer[1]=0;
break;
}
}
/////////////////////////////////////////////////////////////////////
//系統初始化
/////////////////////////////////////////////////////////////////////
void InitializeSystem()
{
P0 = 0xFF; P1 = 0xFF; P3 = 0xFF;
ET2 = 0;
T2CON = 0x04;
PCON = 0x80;
SCON = 0x70;
TMOD = 0x21; //TMOD = 0x22;
TH1 = BAUD_9600;
TL1 = TH1;
TR1 = 1; // 波特率發生器
TH0 = 0x60;
TL0 = 0x60;
TR0 = 0;
ET0=0;
ET1=0;
EA=1;
EX0=1;
IT0 = 1;
TR2=0;
ES = 1;
CmdValid=0;
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做延時子程序
/////////////////////////////////////////////////////////////////////
///////////////////////////////////////////////////////////////////////
// 接收和發送中斷
///////////////////////////////////////////////////////////////////////
void isr_UART(void) interrupt 4 using 1
{
unsigned char len, i;
unsigned int j=0;
if(RI)
{
len=SBUF;
RI=0;
for(i=0;i<len;i++)
{
while(!RI)
{
j++;
if(j>1000)
{
break;
}
}
if(j<1000)
{
RevBuffer[i]=SBUF;
RI=0;
j=0;
}
else
{
break;
}
}
if(i==len)
{
REN=0;
CmdValid=1;
}
}
else if(!RI && TI)
{
TI=0;
len=RevBuffer[0];
for(i=0;i<len+1;i++)
{
SBUF=RevBuffer[i];
while(!TI);
TI=0;
}
REN=1;
}
}
void main( )
{
unsigned char baud;
InitializeSystem( );
while (1)
{
if (CmdValid)
{
CmdValid = FALSE;
if(RevBuffer[0]==11) //為了加快相應速度測試風鳴器
{
RevBuffer[2]=RevBuffer[1];
RevBuffer[0]=1; //contact
RevBuffer[1]=0;
CALL_isr_UART();
LED_GREEN = 1;
delay_10ms(RevBuffer[2]);
LED_GREEN = 0;
}
else if(RevBuffer[0]==13) //設置通訊波特率
{
switch(RevBuffer[1])
{
case 0:
baud=BAUD_9600;
break;
case 1:
baud=BAUD_14400;
break;
case 2:
baud=BAUD_19200;
break;
case 3:
baud=BAUD_28800;
break;
case 4:
baud=BAUD_38400;
break;
case 5:
baud=BAUD_57600;
break;
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