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最近接触了RC522射频卡模块,在调试的过程中,遇到了一些问题。通过不断地尝试,最终实现了该模块的功能。
1、C522共有3中通信方式,分别是UART、I2C和SPI,本人在调试时采用了SPI通信方式。 2、SPI通信的引脚 NSS,片选信号 MISO,信号输出端 MOSI,信号输入端 SCK,时钟信号 IRQ,空置 其中,片选信号在数据写入期间保持低电平;在无数据时保持高电平。 3、RC522的主要通讯步骤: 寻卡。寻卡成功,返回卡的类型。 选卡。选卡成功,返回卡的序列号。 认证。 增减值。该步骤在将IC卡用做电子钱包时才会使用,比如门禁卡就不会使用。 4、但是在通信前,要设置RC522的工作方式。 5、本人在调试时,总是不能完成寻卡。前前后后检查程序都没有问题,编译无错,各信号端输出波形正确。最后我测试了自己的供电模块,发现3.3V的电压只有2.5V。于是,果断换了电源,毫不留情,结果寻卡成功,并通过认证。 6、RC522的底层驱动 #include #include "reg52.h" #include "main.h" #include "mfrc522.h" #include #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; snr_check ^= ucComMF522Buf; } if (snr_check != ucComMF522Buf) { 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; } } 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 = *(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 { 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(ModeReg,0x3D);//3F WriteRawRC(RxSelReg,0x86);//84 // WriteRawRC(RxThresholdReg,0x84);//as default // WriteRawRC(DemodReg,0x4D); //as default // WriteRawRC(ModWidthReg,0x13);//26 WriteRawRC(RFCfgReg,0x7F); //4F 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 { WriteRawRC(FIFODataReg, pInData); } 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 { pOutData = 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 = *(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; } 7、RC522的头文件 ///////////////////////////////////////////////////////////////////// //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) |
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