基于51，人体红外感应和RC522的门禁系统

2021-12-15 02:19:37

总结一下最近学的东西，这两天学的东西，rfid门卡系统终于弄出来来了，这个程序算现在写过的比较满意的程序，大家可以参考参考

主函数：

#include<reg52.h>

#include"mian.h"

#include"rc522.h"

#include"12864.h"

//卡号为0扇区0块内容的前四字节为卡号，且此块内容不能改写

uchar  status;

uchar g_ucTempbuf[];

unsigned char hextoasc(unsigned char i)

{

    if(i<0x09)

    {

        i=i+'';

        return i;

    }

    else

    {

        i=i+0x37;

        return i;

    }

}

void main()

{

    uint i;

    uchar flagren,flagzhenque;

    uchar xule[] = "";

    //初始化：

     init_12864();

     lcd_pos(,);

     write_string("实验重地");

     lcd_pos(,);

     write_string("闲人免进");

     while()

     {

          flagren = hwgy();

          if(flagren == )

          break;

     }

     write_cmd(0x01);//清除lcd的显示内容

     lcd_pos(,);

     write_string("欢迎");

     lcd_pos(,);

     write_string("请刷卡！！");   

    PcdReset();//rc522初始化

    PcdAntennaOff(); //关闭和打开天线

    PcdAntennaOn();

    M500PcdConfigISOType('A');//设定工作模式

    //防冲突，这里需要一个循环，让读卡器不断去读卡

    while()

    {

        status = PcdRequest(PICC_REQALL, g_ucTempbuf);

        //PICC_REQALL他是个宏定义 意思是寻找天线内的所有卡片，

        // g_ucTempbuf 是个数组，在这里函数读取卡内的前两位放在数组中

        if(status != MI_OK)//没有找到卡，继续执行PcdRequest()

        {

              continue;

        }

        status = PcdAnticoll(g_ucTempbuf);//防冲突

        //卡片序列号，4字节,这里的status可以判PcdAnticoll的执行情况

        //如果执行成功，表示g_ucTempbuf上面已经记在唯一的卡号了

        //在这里g_ucTempbuf已经用了2+4个

        if(status != MI_OK)//没有找到卡，继续执行PcdRequest()

        {

              continue;

        }

        if(status == MI_OK)

        {

          LED_GREEN =;

          for(i=;i<;i++)//在12864上显示卡号

          {

            if( hextoasc((g_ucTempbuf[i]&0xf0)>>)  == xule[i])

             {

                write_cmd(0x01);

                lcd_pos(,);

                write_string("封韦杰");

                lcd_pos(,);

                write_string("请进！！");

                flagzhenque = ;

             }

             else

             {

                write_cmd(0x01);

                flagzhenque = ;

                lcd_pos(,);

                write_string("错误！");

                lcd_pos(,);

                write_string("请出示门卡！");

                 break;       //寻卡失败跳出循环

                }

           }

           if(flagzhenque == )

           {

                  for(i=;i<;i++)

                     {

                        step();

                      }

             }

          LED_GREEN = ;

           }

       }

}

void DelayMs(unsigned int _MS)

{

    TH1 = (unsigned char)(RCAP2_1ms>>);

    TL1 = (unsigned char)(RCAP2_1ms);

    ET1     = ;                                        // Disable timer2 interrupt

    TR1     = ;

    while (_MS--)

    {

        while (!TF1);

        TF1 = ;

        TH1 = (unsigned char)(RCAP2_1ms>>);

        TL1 = (unsigned char)(RCAP2_1ms);

    }

    TR1 = ;

}

rc522.c

#include <intrins.h>

#include <REG52.H>

#include "mian.h"

#include "rc522.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]; 

   ClearBitMask(Status2Reg,0x08);

   WriteRawRC(BitFramingReg,0x07);

   SetBitMask(TxControlReg,0x03);

   ucComMF522Buf[] = req_code;

   status = PcdComMF522(PCD_TRANSCEIVE,ucComMF522Buf,,ucComMF522Buf,&unLen);

   if ((status == MI_OK) && (unLen == 0x10))

   {

       *pTagType     = ucComMF522Buf[];

       *(pTagType+) = ucComMF522Buf[];

   }

   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=;

    unsigned int  unLen;

    unsigned char ucComMF522Buf[MAXRLEN]; 

    ClearBitMask(Status2Reg,0x08);

    WriteRawRC(BitFramingReg,0x00);

    ClearBitMask(CollReg,0x80);

    ucComMF522Buf[] = PICC_ANTICOLL1;

    ucComMF522Buf[] = 0x20;

    status = PcdComMF522(PCD_TRANSCEIVE,ucComMF522Buf,,ucComMF522Buf,&unLen);

    if (status == MI_OK)

    {

         for (i=; i<; 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：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 i,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;

// }

/////////////////////////////////////////////////////////////////////

//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[] = PICC_HALT;

    ucComMF522Buf[] = ;

    CalulateCRC(ucComMF522Buf,,&ucComMF522Buf[]);

    status = PcdComMF522(PCD_TRANSCEIVE,ucComMF522Buf,,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=; i<len; i++)

    {   WriteRawRC(FIFODataReg, *(pIndata+i));   }

    WriteRawRC(CommandReg, PCD_CALCCRC);

    i = 0xFF;

    do

    {

        n = ReadRawRC(DivIrqReg);

        i--;

    }

    while ((i!=) && !(n&0x04));

    pOutData[] = ReadRawRC(CRCResultRegL);

    pOutData[] = ReadRawRC(CRCResultRegM);

}

/////////////////////////////////////////////////////////////////////

//功    能：复位RC522

//返    回: 成功返回MI_OK

/////////////////////////////////////////////////////////////////////

char PcdReset(void)

{

    MF522_RST=;

    _nop_();

    MF522_RST=;

    _nop_();

    MF522_RST=;

     _nop_();

    WriteRawRC(CommandReg,PCD_RESETPHASE);

    _nop_();

    WriteRawRC(ModeReg,0x3D);            //和Mifare卡通讯，CRC初始值0x6363

    WriteRawRC(TReloadRegL,);

    WriteRawRC(TReloadRegH,);

    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);//

       WriteRawRC(RFCfgReg,0x7F);   //4F

    /*   WriteRawRC(GsNReg,0x88);        //as default???

       WriteRawRC(CWGsCfgReg,0x20);    //as default???

       WriteRawRC(ModGsCfgReg,0x20);   //as default???

*/

          WriteRawRC(TReloadRegL,);//tmoLength);// TReloadVal = 'h6a =tmoLength(dec)

       WriteRawRC(TReloadRegH,);

       WriteRawRC(TModeReg,0x8D);

       WriteRawRC(TPrescalerReg,0x3E);

  //     PcdSetTmo(106);

       DelayMs();

       PcdAntennaOn();

   }

   else{ return -; }

   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=;

     MF522_SCK = ;

     MF522_NSS = ;

     ucAddr = ((Address<<)&0x7E)|0x80;

     for(i=;i>;i--)

     {

         MF522_SI = ((ucAddr&0x80)==0x80);

         MF522_SCK = ;

         ucAddr <<= ;

         MF522_SCK = ;

     }

     for(i=;i>;i--)

     {

         MF522_SCK = ;

         ucResult <<= ;

         ucResult|=(bit)MF522_SO;

         MF522_SCK = ;

     }

     MF522_NSS = ;

     MF522_SCK = ;

     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 = ;

    MF522_NSS = ;

    ucAddr = ((Address<<)&0x7E);

    for(i=;i>;i--)

    {

        MF522_SI = ((ucAddr&0x80)==0x80);

        MF522_SCK = ;

        ucAddr <<= ;

        MF522_SCK = ;

    }

    for(i=;i>;i--)

    {

        MF522_SI = ((value&0x80)==0x80);

        MF522_SCK = ;

        value <<= ;

        MF522_SCK = ;

    }

    MF522_NSS = ;

    MF522_SCK = ;

}

/////////////////////////////////////////////////////////////////////

//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=; 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 = ;

    do

    {

         n = ReadRawRC(ComIrqReg);

         i--;

    }

    while ((i!=) && !(n&0x01) && !(n&waitFor));

    ClearBitMask(BitFramingReg,0x80);

    if (i!=)

    {

         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-)* + lastBits;   }

                else

                {   *pOutLenBit = n*;   }

                if (n == )

                {   n = ;    }

                if (n > MAXRLEN)

                {   n = MAXRLEN;   }

                for (i=; 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);

}

step.c

#include<reg52.h>

#define Step 500

void step()

{

    unsigned int i;

    P3 = 0x01;//0000 0001

    for(i = ;i<Step;i++);

    P3 = 0x02;//0000 0010

    for(i = ;i<Step;i++);

    P3 = 0x04;//0000 0100

    for(i = ;i<Step;i++);

    P3 = 0x08;//0000 1000

    for(i = ;i<Step;i++);

}

12864.c

#include"12864.h"

#include<reg52.h>

sbit lcdrs = P2^;//数据还是指令选择端口

sbit lcdwr = P2^;//读写选择端口

sbit lcden = P2^;//使能端口

sbit PSB = P2^;//串并口选择端口

/*uchar code table1[]={"Welcome!!"};

uchar code table2[]={"Psw:"};

uchar code table3[] ={"Open"};

uchar code table4[] ={"Error try again!"};

uchar code table5[] ={"Error 3 times!!"};*/

void delay1ms(uint x)//延时函数

{

    uint i,j;

    for(i= x;i>;i--)

        for(j=;j>;j--);

}

void write_cmd(uchar cmd)//写指令函数

{

    lcdrs = ;

    lcdwr = ;

    P0 = cmd;

    lcden = ;

    delay1ms();//

    lcden = ;

}

void write_date(uchar date)//写数据函数

{

    lcdrs = ;

    lcdwr = ;

    P0 = date;

    lcden = ;

    delay1ms();//

    lcden = ;

}

void write_string(uchar *str)//写入字符串函数

{

    for(;*str!='\0';str++)

    {

            write_date(*str);

            delay1ms();

    }

}

void init_12864()

{

    PSB = ;//并口方式传送数据

    write_cmd(0x30);//基本指令操作

    write_cmd(0x0c);//开显示，关光标

    write_cmd(0x01);//清除lcd的显示内容

}

void lcd_putpic(unsigned char code *img)//画图函数

{

    uint i,j;

    //画图上半部分

    for(i = ;i<;i++)

    {

        write_cmd(0x80+i);//

        write_cmd(0x80);//

        for(j=;j<;j++)

        {

            write_date(*img);

            img++;

        }

    }

    //画下部分的屏幕

    for(i = ;i<;i++)

    {

        write_cmd(0x80+i);//设定列

        write_cmd(0x88);//从第三行开始画图

        for(j=;j<;j++)

        {

            write_date(*img);

            img++;

        }

    }

}

void setpic()//设定画图功能的函数

{

    write_cmd(0x36);//设定画图其画图功能

    delay1ms();

}

void lcd_pos(uchar x,uchar y)//设定显示位置的函数

{

    uchar pos;

    if(x==)

        x=0x80;

    else

        if(x==)

            x=0x90;

        else

            if(x==)

                x=0x88;

            else

                if(x==)

                    x=0x98;

                pos=x+y;

                write_cmd(pos);

}

hongwai.c

#include<reg52.h>

#include"12864.h"

sbit led = P3^;

sbit hongwai = P3^;

uchar flag;

uchar hwgy()

{

    hongwai = ;

    while()

     {

         if(hongwai ==)//检测到高电平的话，延时一下

         {

             delay1ms();

             if(hongwai == )//再次检测一下

             {

                 led = ;

                 flag = ;

                 return flag;

                 break;

             }

        }

        else

        {

        led = ;

        flag = ;

        return flag;

        }

   }

}

头文件：

12864.h

#ifndef __12864_H__

#define _12864_H__

#include<reg52.h>

typedef unsigned int uint;

typedef unsigned char uchar;

/*extern uchar code table1[] ;

extern uchar code table2[] ;

extern uchar code table3[] ;

extern uchar code table4[] ;

extern uchar code table5[] ;*/

extern unsigned char code pic1[];

void delay1ms(uint x);//延时函数

void write_cmd(uchar cmd);//写指令函数

void write_date(uchar date);//写数据函数

void init_12864();

void lcd_putpic(unsigned char code *img);//画图函数

void setpic();//设定画图功能的函数

void lcd_pos(uchar x,uchar y);//设定显示位置的函数

void write_string(uchar *str);

//红外感应模块

uchar hwgy();

#endif

main.h

#ifndef __MIAN_H_

#define __MIAN_H_

//////////////////////////////////

//端口定义

/////////////////////////////////////////////////////////////////////

//MFRC500

sbit     MF522_RST  =    P1^;                   //RC500??

sbit     MF522_NSS  =    P1^;

sbit     MF522_SCK  =    P1^;

sbit     MF522_SI   =    P1^;

sbit     MF522_SO   =    P1^;

//???

sbit     LED_GREEN  =    P1^;

/////////////////////////////////////////////////////////////////////

//函数原型

/////////////////////////////////////////////////////////////////////

void InitializeSystem();

void step();                                  

#define  OSC_FREQ        7372800L

#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

void DelayMs(unsigned int _MS);

#endif

rc522.h

/////////////////////////////////////////////////////////////////////

//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);

/////////////////////////////////////////////////////////////////////

//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)

完整版本的程序：请见：http://download.csdn.net/detail/generoius/6700269

版权所有：转载请注明链接地址：http://www.cnblogs.com/fengdashen/p/3469995.html

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