RFID-RC522源程序

ID:198552 · 發(fā)表于 2017-5-9 11:27

#include "reg52.h"
#include "intrins.h"
#include "main.h"
#include "rc522.h"
#include "string.h"

void delay_ns(unsigned int ns)
{
unsigned int i;
for(i=0;i<ns;i++)
{
nop();
nop();
nop();
}
}

//------------------------------------------
// 讀SPI數(shù)據(jù)
//------------------------------------------
unsigned char SPIReadByte(void)
{
unsigned char SPICount;                                     // Counter used to clock out the data
unsigned char SPIData;

SPIData = 0;
for (SPICount = 0; SPICount < 8; SPICount++)                // Prepare to clock in the data to be read
{
SPIData <<=1;                                              // Rotate the data
CLR_SPI_CK; //nop();//nop();                                        // Raise the clock to clock the data out of the MAX7456
if(STU_SPI_MISO)
{
SPIData|=0x01;
}
SET_SPI_CK; //nop();//nop();                                              // Drop the clock ready for the next bit
}                                                          // and loop back
return (SPIData);                            // Finally return the read data
}
//------------------------------------------
// 寫(xiě)SPI數(shù)據(jù)
//------------------------------------------
void SPIWriteByte(unsigned char SPIData)
{
unsigned char SPICount;                                     // Counter used to clock out the data
for (SPICount = 0; SPICount < 8; SPICount++)
{
if (SPIData & 0x80)
{
SET_SPI_MOSI;
}
else
{
CLR_SPI_MOSI;
}
nop();nop();
CLR_SPI_CK;nop();nop();
SET_SPI_CK;nop();nop();
SPIData <<= 1;
}
}

/////////////////////////////////////////////////////////////////////
//功能：讀RC632寄存器
//參數(shù)說(shuō)明：Address[IN]:寄存器地址
//返回：讀出的值
/////////////////////////////////////////////////////////////////////
unsigned char ReadRawRC(unsigned char Address)
{
unsigned char ucAddr;
unsigned char ucResult=0;
CLR_SPI_CS;
ucAddr = ((Address<<1)&0x7E)|0x80;
SPIWriteByte(ucAddr);
ucResult=SPIReadByte();
SET_SPI_CS;
return ucResult;
}

/////////////////////////////////////////////////////////////////////
//功能：寫(xiě)RC632寄存器
//參數(shù)說(shuō)明：Address[IN]:寄存器地址
//       value[IN]:寫(xiě)入的值
/////////////////////////////////////////////////////////////////////
void WriteRawRC(unsigned char Address, unsigned char value)
{
unsigned char ucAddr;

CLR_SPI_CS;
ucAddr = ((Address<<1)&0x7E);
SPIWriteByte(ucAddr);
SPIWriteByte(value);
SET_SPI_CS;
}

/////////////////////////////////////////////////////////////////////
//功能：清RC522寄存器位
//參數(shù)說(shuō)明：reg[IN]:寄存器地址
//       mask[IN]:清位值
/////////////////////////////////////////////////////////////////////
void ClearBitMask(unsigned char reg,unsigned char mask)
{
char tmp = 0x00;
tmp = ReadRawRC(reg);
WriteRawRC(reg, tmp & ~mask);  // clear bit mask
}

/////////////////////////////////////////////////////////////////////
//功能：置RC522寄存器位
//參數(shù)說(shuō)明：reg[IN]:寄存器地址
//       mask[IN]:置位值
/////////////////////////////////////////////////////////////////////
void SetBitMask(unsigned char reg,unsigned char mask)
{
char tmp = 0x00;
tmp = ReadRawRC(reg);
WriteRawRC(reg,tmp | mask);  // set bit mask
}

/////////////////////////////////////////////////////////////////////
//用MF522計(jì)算CRC16函數(shù)
/////////////////////////////////////////////////////////////////////
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：通過(guò)RC522和ISO14443卡通訊
//參數(shù)說(shuō)明：Command[IN]:RC522命令字
//       pInData[IN]:通過(guò)RC522發(fā)送到卡片的數(shù)據(jù)
//       InLenByte[IN]:發(fā)送數(shù)據(jù)的字節(jié)長(zhǎng)度
//       pOutData[OUT]:接收到的卡片返回?cái)?shù)據(jù)
//       *pOutLenBit[OUT]:返回?cái)?shù)據(jù)的位長(zhǎng)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;//根據(jù)時(shí)鐘頻率調(diào)整，操作M1卡最大等待時(shí)間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;
}

/////////////////////////////////////////////////////////////////////
//功能：尋卡
//參數(shù)說(shuō)明: req_code[IN]:尋卡方式
//             0x52 = 尋感應(yīng)區(qū)內(nèi)所有符合14443A標(biāo)準(zhǔn)的卡
//             0x26 = 尋未進(jìn)入休眠狀態(tài)的卡
//       pTagType[OUT]：卡片類(lèi)型代碼
//             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[0] = req_code;

status = PcdComMF522(PCD_TRANSCEIVE,ucComMF522Buf,1,ucComMF522Buf,&unLen);

if ((status == MI_OK) && (unLen == 0x10))
{
*pTagType    = ucComMF522Buf[0];
*(pTagType+1) = ucComMF522Buf[1];
}
else
{
status = MI_ERR;
}

return status;
}

/////////////////////////////////////////////////////////////////////
//功能：防沖撞
//參數(shù)說(shuō)明: pSnr[OUT]:卡片序列號(hào)，4字節(jié)
//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：選定卡片
//參數(shù)說(shuō)明: pSnr[IN]:卡片序列號(hào)，4字節(jié)
//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：驗(yàn)證卡片密碼
//參數(shù)說(shuō)明: auth_mode[IN]: 密碼驗(yàn)證模式
//                0x60 = 驗(yàn)證A密鑰
//                0x61 = 驗(yàn)證B密鑰
//       addr[IN]：塊地址
//       pKey[IN]：密碼
//       pSnr[IN]：卡片序列號(hào)，4字節(jié)
//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 ucComMF522Buf[MAXRLEN];

ucComMF522Buf[0] = auth_mode;
ucComMF522Buf[1] = addr;
memcpy(&ucComMF522Buf[2], pKey, 6);
memcpy(&ucComMF522Buf[8], pSnr, 6);

status = PcdComMF522(PCD_AUTHENT,ucComMF522Buf,12,ucComMF522Buf,&unLen);
if ((status != MI_OK) || (!(ReadRawRC(Status2Reg) & 0x08)))
{
status = MI_ERR;
}

return status;
}

/////////////////////////////////////////////////////////////////////
//功能：讀取M1卡一塊數(shù)據(jù)
//參數(shù)說(shuō)明: addr[IN]：塊地址
//       pData[OUT]：讀出的數(shù)據(jù)，16字節(jié)
//返回: 成功返回MI_OK
/////////////////////////////////////////////////////////////////////
char PcdRead(unsigned char addr,unsigned char *pData)
{
char status;
unsigned int unLen;
unsigned char 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);
}
else
{
status = MI_ERR;
}

return status;
}

/////////////////////////////////////////////////////////////////////
//功能：寫(xiě)數(shù)據(jù)到M1卡一塊
//參數(shù)說(shuō)明: addr[IN]：塊地址
//       pData[IN]：寫(xiě)入的數(shù)據(jù)，16字節(jié)
//返回: 成功返回MI_OK
/////////////////////////////////////////////////////////////////////
char PcdWrite(unsigned char addr,unsigned char *pData)
{
char status;
unsigned int unLen;
unsigned char 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);
      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：命令卡片進(jìn)入休眠狀態(tài)
//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;
}

/////////////////////////////////////////////////////////////////////
//功能：復(fù)位RC522
//返回: 成功返回MI_OK
/////////////////////////////////////////////////////////////////////
char PcdReset(void)
{
SET_RC522RST;
delay_ns(10);
CLR_RC522RST;
delay_ns(10);
SET_RC522RST;
delay_ns(10);
WriteRawRC(CommandReg,PCD_RESETPHASE);
delay_ns(10);

WriteRawRC(ModeReg,0x3D);          //和Mifare卡通訊，CRC初始值0x6363
WriteRawRC(TReloadRegL,30);
WriteRawRC(TReloadRegH,0);
WriteRawRC(TModeReg,0x8D);
WriteRawRC(TPrescalerReg,0x3E);

WriteRawRC(TxAutoReg,0x40);//必須要

return MI_OK;
}
//////////////////////////////////////////////////////////////////////
//設(shè)置RC632的工作方式
//////////////////////////////////////////////////////////////////////
char M500PcdConfigISOType(unsigned char type)
{
if (type == 'A')                   //ISO14443_A
{
   ClearBitMask(Status2Reg,0x08);
   WriteRawRC(ModeReg,0x3D);//3F
   WriteRawRC(RxSelReg,0x86);//84
   WriteRawRC(RFCfgReg,0x7F); //4F
      WriteRawRC(TReloadRegL,30);//tmoLength);// TReloadVal = 'h6a =tmoLength(dec)
   WriteRawRC(TReloadRegH,0);
   WriteRawRC(TModeReg,0x8D);
   WriteRawRC(TPrescalerReg,0x3E);
   delay_ns(1000);
   PcdAntennaOn();
}
else{ return -1; }

return MI_OK;
}

/////////////////////////////////////////////////////////////////////
//開(kāi)啟天線
//每次啟動(dòng)或關(guān)閉天險(xiǎn)發(fā)射之間應(yīng)至少有1ms的間隔
/////////////////////////////////////////////////////////////////////
void PcdAntennaOn(void)
{
unsigned char i;
i = ReadRawRC(TxControlReg);
if (!(i & 0x03))
{
      SetBitMask(TxControlReg, 0x03);
}
}

/////////////////////////////////////////////////////////////////////
//關(guān)閉天線
/////////////////////////////////////////////////////////////////////
void PcdAntennaOff(void)
{
ClearBitMask(TxControlReg, 0x03);
}

void init_rc522(void)
{
  PcdReset();
  PcdAntennaOff();
  PcdAntennaOn();
  M500PcdConfigISOType( 'A' );
}

/////////////////////////////////////////////////////////////////////
//功能：扣款和充值
//參數(shù)說(shuō)明: dd_mode[IN]：命令字
//             0xC0 = 扣款
//             0xC1 = 充值
//       addr[IN]：錢(qián)包地址
//       pValue[IN]：4字節(jié)增(減)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];
//unsigned char i;

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：備份錢(qián)包
//參數(shù)說(shuō)明: sourceaddr[IN]：源地址
//       goaladdr[IN]：目標(biāo)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;
}*/

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RFID-RC522源程序

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