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RC522.zip
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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
- }
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