ID卡+IC卡双频读卡韦根读头

#include "RFID.h" //读寄存器 unsigned char ReadRawRC(unsigned char SpiAddress) { u8 ucAddr; u8 rdata; ucAddr = ((SpiAddress << 1) & 0x7E) | 0x80; NSS_L; while(SPI_SR_TXE == 0); SPI_DR = ucAddr; while(SPI_SR_RXNE == 0); rdata = SPI_DR; while(SPI_SR_TXE == 0); SPI_DR = 0x00; while(SPI_SR_RXNE == 0); rdata = SPI_DR; NSS_H; return(rdata); } //写寄存器 void WriteRawRC(unsigned char SpiAddress,unsigned char dat) { u8 ucAddr; u8 rdata; ucAddr = ((SpiAddress << 1) & 0x7E); NSS_L; while(SPI_SR_TXE == 0); SPI_DR = ucAddr; while(SPI_SR_RXNE == 0); rdata = SPI_DR; while(SPI_SR_TXE == 0); SPI_DR = dat; while(SPI_SR_RXNE == 0); rdata = SPI_DR; NSS_H; } //功 能：置FM17550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 = 0x00; tmp = ReadRawRC(reg); WriteRawRC(reg, tmp | mask); // set bit mask } //功 能：清FM17550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 = 0x00; tmp = ReadRawRC(reg); WriteRawRC(reg, tmp & ~mask); // clear bit mask } //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(void) { u8 i; i = ReadRawRC(TxControlReg); if (!(i & 0x03)) { SetBitMask(TxControlReg, 0x03); } } //关闭天线 void PcdAntennaOff(void) { ClearBitMask(TxControlReg, 0x03); } //功 能：通过RC522和ISO14443卡通讯 //参数说明：Command[IN]:RC522命令字 // pIn [IN]:通过RC522发送到卡片的数据 // InLenByte[IN]:发送数据的字节长度 // pOut [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 = 3200; 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：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); //清RC522寄存位 WriteRawRC(BitFramingReg, 0x07); //写RC623寄存器 SetBitMask(TxControlReg, 0x03); //置RC522寄存位 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 + 3 - i) = ucComMF522Buf[i]; snr_check ^= ucComMF522Buf[i]; } if (snr_check != ucComMF522Buf[i]) { status = MI_ERR; } } SetBitMask(CollReg, 0x80); return status; } //功 能：复位RC522 //返 回: 成功返回MI_OK char PcdReset(void) { RST_H; DelayMs(1); RST_L; DelayMs(3); RST_H; DelayMs(5); WriteRawRC(CommandReg, PCD_RESETPHASE); DelayMs(2); WriteRawRC(ModeReg, 0x3D); WriteRawRC(TReloadRegL, 30); //定时器计数值低位 WriteRawRC(TReloadRegH, 0); //定时器计数值高位 WriteRawRC(TModeReg, 0x8D); //定时器自动重启计数 WriteRawRC(TPrescalerReg, 0x3E);//定时器相关设置 WriteRawRC(TxAutoReg, 0x40); // // ClearBitMask(TestPinEnReg, 0x80); // WriteRawRC(TxAutoReg, 0x40); return MI_OK; } void FM17550Init(void) { PcdReset(); DelayMs(10); PcdAntennaOff(); DelayMs(10); PcdAntennaOn(); }