679 lines
16 KiB
C++
679 lines
16 KiB
C++
#include <SPI.h>
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#define uchar unsigned char
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#define uint unsigned int
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#define MAX_LEN 16
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#define PCD_IDLE 0x00
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#define PCD_AUTHENT 0x0E
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#define PCD_RECEIVE 0x08
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#define PCD_TRANSMIT 0x04
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#define PCD_TRANSCEIVE 0x0C
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#define PCD_RESETPHASE 0x0F
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#define PCD_CALCCRC 0x03
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#define PICC_REQIDL 0x26
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#define PICC_REQALL 0x52
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#define PICC_ANTICOLL 0x93
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#define PICC_SElECTTAG 0x93
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#define PICC_AUTHENT1A 0x60
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#define PICC_AUTHENT1B 0x61
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#define PICC_READ 0x30
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#define PICC_WRITE 0xA0
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#define PICC_DECREMENT 0xC0
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#define PICC_INCREMENT 0xC1
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#define PICC_RESTORE 0xC2
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#define PICC_TRANSFER 0xB0
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#define PICC_HALT 0x50
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#define MI_OK 0
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#define MI_NOTAGERR 1
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#define MI_ERR 2
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#define Reserved00 0x00
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#define CommandReg 0x01
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#define CommIEnReg 0x02
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#define DivlEnReg 0x03
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#define CommIrqReg 0x04
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#define DivIrqReg 0x05
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#define ErrorReg 0x06
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#define Status1Reg 0x07
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#define Status2Reg 0x08
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#define FIFODataReg 0x09
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#define FIFOLevelReg 0x0A
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#define WaterLevelReg 0x0B
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#define ControlReg 0x0C
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#define BitFramingReg 0x0D
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#define CollReg 0x0E
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#define Reserved01 0x0F
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#define Reserved10 0x10
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#define ModeReg 0x11
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#define TxModeReg 0x12
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#define RxModeReg 0x13
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#define TxControlReg 0x14
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#define TxAutoReg 0x15
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#define TxSelReg 0x16
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#define RxSelReg 0x17
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#define RxThresholdReg 0x18
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#define DemodReg 0x19
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#define Reserved11 0x1A
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#define Reserved12 0x1B
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#define MifareReg 0x1C
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#define Reserved13 0x1D
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#define Reserved14 0x1E
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#define SerialSpeedReg 0x1F
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#define Reserved20 0x20
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#define CRCResultRegM 0x21
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#define CRCResultRegL 0x22
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#define Reserved21 0x23
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#define ModWidthReg 0x24
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#define Reserved22 0x25
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#define RFCfgReg 0x26
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#define GsNReg 0x27
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#define CWGsPReg 0x28
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#define ModGsPReg 0x29
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#define TModeReg 0x2A
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#define TPrescalerReg 0x2B
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#define TReloadRegH 0x2C
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#define TReloadRegL 0x2D
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#define TCounterValueRegH 0x2E
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#define TCounterValueRegL 0x2F
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#define Reserved30 0x30
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#define TestSel1Reg 0x31
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#define TestSel2Reg 0x32
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#define TestPinEnReg 0x33
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#define TestPinValueReg 0x34
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#define TestBusReg 0x35
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#define AutoTestReg 0x36
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#define VersionReg 0x37
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#define AnalogTestReg 0x38
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#define TestDAC1Reg 0x39
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#define TestDAC2Reg 0x3A
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#define TestADCReg 0x3B
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#define Reserved31 0x3C
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#define Reserved32 0x3D
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#define Reserved33 0x3E
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#define Reserved34 0x3F
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//-----------------------------------------------
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const int chipSelectPin = 10;
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const int NRSTPD = 5;
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/*
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* 函 数 名：Write_MFRC5200
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* 功能描述：向MFRC522的某一寄存器写一个字节数据
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* 输入参数：addr--寄存器地址；val--要写入的值
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* 返 回 值：无
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*/
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void Write_MFRC522(uchar addr, uchar val)
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{
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digitalWrite(chipSelectPin, LOW);
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//地址格式：0XXXXXX0
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SPI.transfer((addr<<1)&0x7E);
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SPI.transfer(val);
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digitalWrite(chipSelectPin, HIGH);
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}
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/*
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* 函 数 名：Read_MFRC522
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* 功能描述：从MFRC522的某一寄存器读一个字节数据
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* 输入参数：addr--寄存器地址
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* 返 回 值：返回读取到的一个字节数据
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*/
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uchar Read_MFRC522(uchar addr)
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{
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uchar val;
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digitalWrite(chipSelectPin, LOW);
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//地址格式：1XXXXXX0
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SPI.transfer(((addr<<1)&0x7E) | 0x80);
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val =SPI.transfer(0x00);
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digitalWrite(chipSelectPin, HIGH);
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return val;
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}
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/*
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* 函 数 名：SetBitMask
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* 功能描述：置RC522寄存器位
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* 输入参数：reg--寄存器地址;mask--置位值
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* 返 回 值：无
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*/
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void SetBitMask(uchar reg, uchar mask)
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{
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uchar tmp;
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tmp = Read_MFRC522(reg);
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Write_MFRC522(reg, tmp | mask); // set bit mask
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}
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/*
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* 函 数 名：ClearBitMask
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* 功能描述：清RC522寄存器位
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* 输入参数：reg--寄存器地址;mask--清位值
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* 返 回 值：无
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*/
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void ClearBitMask(uchar reg, uchar mask)
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{
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uchar tmp;
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tmp = Read_MFRC522(reg);
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Write_MFRC522(reg, tmp & (~mask)); // clear bit mask
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}
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/*
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* 函 数 名：AntennaOn
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* 功能描述：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
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* 输入参数：无
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* 返 回 值：无
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*/
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void AntennaOn(void)
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{
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uchar temp;
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temp = Read_MFRC522(TxControlReg);
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if (!(temp & 0x03))
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{
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SetBitMask(TxControlReg, 0x03);
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}
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}
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/*
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* 函 数 名：AntennaOff
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* 功能描述：关闭天线,每次启动或关闭天险发射之间应至少有1ms的间隔
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* 输入参数：无
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* 返 回 值：无
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*/
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void AntennaOff(void)
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{
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ClearBitMask(TxControlReg, 0x03);
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}
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/*
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* 函 数 名：ResetMFRC522
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* 功能描述：复位RC522
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* 输入参数：无
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* 返 回 值：无
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*/
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void MFRC522_Reset(void)
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{
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Write_MFRC522(CommandReg, PCD_RESETPHASE);
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}
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/*
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* 函 数 名：InitMFRC522
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* 功能描述：初始化RC522
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* 输入参数：无
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* 返 回 值：无
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*/
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void MFRC522_Init(void)
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{
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digitalWrite(NRSTPD,HIGH);
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MFRC522_Reset();
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//Timer: TPrescaler*TreloadVal/6.78MHz = 24ms
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Write_MFRC522(TModeReg, 0x8D); //Tauto=1; f(Timer) = 6.78MHz/TPreScaler
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Write_MFRC522(TPrescalerReg, 0x3E); //TModeReg[3..0] + TPrescalerReg
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Write_MFRC522(TReloadRegL, 30);
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Write_MFRC522(TReloadRegH, 0);
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Write_MFRC522(TxAutoReg, 0x40); //100%ASK
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Write_MFRC522(ModeReg, 0x3D); //CRC初始值0x6363 ???
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//ClearBitMask(Status2Reg, 0x08); //MFCrypto1On=0
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//Write_MFRC522(RxSelReg, 0x86); //RxWait = RxSelReg[5..0]
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//Write_MFRC522(RFCfgReg, 0x7F); //RxGain = 48dB
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AntennaOn(); //打开天线
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}
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/*
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* 函 数 名：MFRC522_Request
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* 功能描述：寻卡，读取卡类型号
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* 输入参数：reqMode--寻卡方式，
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* TagType--返回卡片类型
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* 0x4400 = Mifare_UltraLight
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* 0x0400 = Mifare_One(S50)
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* 0x0200 = Mifare_One(S70)
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* 0x0800 = Mifare_Pro(X)
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* 0x4403 = Mifare_DESFire
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* 返 回 值：成功返回MI_OK
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*/
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uchar MFRC522_Request(uchar reqMode, uchar *TagType)
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{
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uchar status;
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uint backBits; //接收到的数据位数
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Write_MFRC522(BitFramingReg, 0x07); //TxLastBists = BitFramingReg[2..0] ???
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TagType[0] = reqMode;
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status = MFRC522_ToCard(PCD_TRANSCEIVE, TagType, 1, TagType, &backBits);
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if ((status != MI_OK) || (backBits != 0x10))
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{
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status = MI_ERR;
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}
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return status;
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}
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/*
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* 函 数 名：MFRC522_ToCard
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* 功能描述：RC522和ISO14443卡通讯
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* 输入参数：command--MF522命令字，
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* sendData--通过RC522发送到卡片的数据,
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* sendLen--发送的数据长度
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* backData--接收到的卡片返回数据，
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* backLen--返回数据的位长度
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* 返 回 值：成功返回MI_OK
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*/
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uchar MFRC522_ToCard(uchar command, uchar *sendData, uchar sendLen, uchar *backData, uint *backLen)
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{
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uchar status = MI_ERR;
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uchar irqEn = 0x00;
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uchar waitIRq = 0x00;
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uchar lastBits;
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uchar n;
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uint i;
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switch (command)
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{
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case PCD_AUTHENT: //认证卡密
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{
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irqEn = 0x12;
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waitIRq = 0x10;
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break;
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}
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case PCD_TRANSCEIVE: //发送FIFO中数据
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{
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irqEn = 0x77;
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waitIRq = 0x30;
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break;
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}
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default:
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break;
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}
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Write_MFRC522(CommIEnReg, irqEn|0x80); //允许中断请求
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ClearBitMask(CommIrqReg, 0x80); //清除所有中断请求位
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SetBitMask(FIFOLevelReg, 0x80); //FlushBuffer=1, FIFO初始化
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Write_MFRC522(CommandReg, PCD_IDLE); //NO action;取消当前命令 ???
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//向FIFO中写入数据
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for (i=0; i<sendLen; i++)
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{
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Write_MFRC522(FIFODataReg, sendData[i]);
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}
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//执行命令
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Write_MFRC522(CommandReg, command);
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if (command == PCD_TRANSCEIVE)
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{
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SetBitMask(BitFramingReg, 0x80); //StartSend=1,transmission of data starts
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}
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//等待接收数据完成
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i = 2000; //i根据时钟频率调整，操作M1卡最大等待时间25ms ???
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do
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{
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//CommIrqReg[7..0]
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//Set1 TxIRq RxIRq IdleIRq HiAlerIRq LoAlertIRq ErrIRq TimerIRq
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n = Read_MFRC522(CommIrqReg);
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i--;
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}
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while ((i!=0) && !(n&0x01) && !(n&waitIRq));
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ClearBitMask(BitFramingReg, 0x80); //StartSend=0
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if (i != 0)
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{
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if(!(Read_MFRC522(ErrorReg) & 0x1B)) //BufferOvfl Collerr CRCErr ProtecolErr
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{
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status = MI_OK;
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if (n & irqEn & 0x01)
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{
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status = MI_NOTAGERR; //??
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}
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if (command == PCD_TRANSCEIVE)
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{
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n = Read_MFRC522(FIFOLevelReg);
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lastBits = Read_MFRC522(ControlReg) & 0x07;
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if (lastBits)
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{
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*backLen = (n-1)*8 + lastBits;
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}
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else
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{
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*backLen = n*8;
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}
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if (n == 0)
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{
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n = 1;
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}
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if (n > MAX_LEN)
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{
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n = MAX_LEN;
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}
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//读取FIFO中接收到的数据
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for (i=0; i<n; i++)
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{
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backData[i] = Read_MFRC522(FIFODataReg);
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}
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}
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}
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else
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{
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status = MI_ERR;
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}
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}
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//SetBitMask(ControlReg,0x80); //timer stops
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//Write_MFRC522(CommandReg, PCD_IDLE);
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return status;
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}
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/*
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* 函 数 名：MFRC522_Anticoll
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* 功能描述：防冲突检测，读取选中卡片的卡序列号
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* 输入参数：serNum--返回4字节卡序列号,第5字节为校验字节
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* 返 回 值：成功返回MI_OK
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*/
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uchar MFRC522_Anticoll(uchar *serNum)
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{
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uchar status;
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uchar i;
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uchar serNumCheck=0;
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uint unLen;
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//ClearBitMask(Status2Reg, 0x08); //TempSensclear
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//ClearBitMask(CollReg,0x80); //ValuesAfterColl
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Write_MFRC522(BitFramingReg, 0x00); //TxLastBists = BitFramingReg[2..0]
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serNum[0] = PICC_ANTICOLL;
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serNum[1] = 0x20;
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status = MFRC522_ToCard(PCD_TRANSCEIVE, serNum, 2, serNum, &unLen);
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if (status == MI_OK)
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{
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//校验卡序列号
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for (i=0; i<4; i++)
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{
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serNumCheck ^= serNum[i];
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}
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if (serNumCheck != serNum[i])
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{
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status = MI_ERR;
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}
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}
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//SetBitMask(CollReg, 0x80); //ValuesAfterColl=1
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return status;
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}
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/*
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* 函 数 名：CalulateCRC
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* 功能描述：用MF522计算CRC
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* 输入参数：pIndata--要读数CRC的数据，len--数据长度，pOutData--计算的CRC结果
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* 返 回 值：无
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*/
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void CalulateCRC(uchar *pIndata, uchar len, uchar *pOutData)
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{
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uchar i, n;
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ClearBitMask(DivIrqReg, 0x04); //CRCIrq = 0
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SetBitMask(FIFOLevelReg, 0x80); //清FIFO指针
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//Write_MFRC522(CommandReg, PCD_IDLE);
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//向FIFO中写入数据
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for (i=0; i<len; i++)
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{
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Write_MFRC522(FIFODataReg, *(pIndata+i));
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}
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Write_MFRC522(CommandReg, PCD_CALCCRC);
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//等待CRC计算完成
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i = 0xFF;
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do
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{
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n = Read_MFRC522(DivIrqReg);
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i--;
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}
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while ((i!=0) && !(n&0x04)); //CRCIrq = 1
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//读取CRC计算结果
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pOutData[0] = Read_MFRC522(CRCResultRegL);
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pOutData[1] = Read_MFRC522(CRCResultRegM);
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}
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/*
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* 函 数 名：MFRC522_SelectTag
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* 功能描述：选卡，读取卡存储器容量
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* 输入参数：serNum--传入卡序列号
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* 返 回 值：成功返回卡容量
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*/
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uchar MFRC522_SelectTag(uchar *serNum)
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{
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uchar i;
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uchar status;
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uchar size;
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uint recvBits;
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uchar buffer[9];
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//ClearBitMask(Status2Reg, 0x08); //MFCrypto1On=0
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buffer[0] = PICC_SElECTTAG;
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buffer[1] = 0x70;
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for (i=0; i<5; i++)
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{
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buffer[i+2] = *(serNum+i);
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}
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CalulateCRC(buffer, 7, &buffer[7]); //??
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status = MFRC522_ToCard(PCD_TRANSCEIVE, buffer, 9, buffer, &recvBits);
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if ((status == MI_OK) && (recvBits == 0x18))
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{
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size = buffer[0];
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}
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else
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{
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size = 0;
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}
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return size;
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}
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/*
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* 函 数 名：MFRC522_Auth
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* 功能描述：验证卡片密码
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* 输入参数：authMode--密码验证模式
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0x60 = 验证A密钥
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0x61 = 验证B密钥
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BlockAddr--块地址
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||
Sectorkey--扇区密码
|
||
serNum--卡片序列号，4字节
|
||
* 返 回 值：成功返回MI_OK
|
||
*/
|
||
uchar MFRC522_Auth(uchar authMode, uchar BlockAddr, uchar *Sectorkey, uchar *serNum)
|
||
{
|
||
uchar status;
|
||
uint recvBits;
|
||
uchar i;
|
||
uchar buff[12];
|
||
|
||
//验证指令+块地址＋扇区密码＋卡序列号
|
||
buff[0] = authMode;
|
||
buff[1] = BlockAddr;
|
||
for (i=0; i<6; i++)
|
||
{
|
||
buff[i+2] = *(Sectorkey+i);
|
||
}
|
||
for (i=0; i<4; i++)
|
||
{
|
||
buff[i+8] = *(serNum+i);
|
||
}
|
||
status = MFRC522_ToCard(PCD_AUTHENT, buff, 12, buff, &recvBits);
|
||
|
||
if ((status != MI_OK) || (!(Read_MFRC522(Status2Reg) & 0x08)))
|
||
{
|
||
status = MI_ERR;
|
||
}
|
||
|
||
return status;
|
||
}
|
||
|
||
|
||
/*
|
||
* 函 数 名：MFRC522_Read
|
||
* 功能描述：读块数据
|
||
* 输入参数：blockAddr--块地址;recvData--读出的块数据
|
||
* 返 回 值：成功返回MI_OK
|
||
*/
|
||
uchar MFRC522_Read(uchar blockAddr, uchar *recvData)
|
||
{
|
||
uchar status;
|
||
uint unLen;
|
||
|
||
recvData[0] = PICC_READ;
|
||
recvData[1] = blockAddr;
|
||
CalulateCRC(recvData,2, &recvData[2]);
|
||
status = MFRC522_ToCard(PCD_TRANSCEIVE, recvData, 4, recvData, &unLen);
|
||
|
||
if ((status != MI_OK) || (unLen != 0x90))
|
||
{
|
||
status = MI_ERR;
|
||
}
|
||
|
||
return status;
|
||
}
|
||
|
||
|
||
/*
|
||
* 函 数 名：MFRC522_Write
|
||
* 功能描述：写块数据
|
||
* 输入参数：blockAddr--块地址;writeData--向块写16字节数据
|
||
* 返 回 值：成功返回MI_OK
|
||
*/
|
||
uchar MFRC522_Write(uchar blockAddr, uchar *writeData)
|
||
{
|
||
uchar status;
|
||
uint recvBits;
|
||
uchar i;
|
||
uchar buff[18];
|
||
|
||
buff[0] = PICC_WRITE;
|
||
buff[1] = blockAddr;
|
||
CalulateCRC(buff, 2, &buff[2]);
|
||
status = MFRC522_ToCard(PCD_TRANSCEIVE, buff, 4, buff, &recvBits);
|
||
|
||
if ((status != MI_OK) || (recvBits != 4) || ((buff[0] & 0x0F) != 0x0A))
|
||
{
|
||
status = MI_ERR;
|
||
}
|
||
|
||
if (status == MI_OK)
|
||
{
|
||
for (i=0; i<16; i++) //向FIFO写16Byte数据
|
||
{
|
||
buff[i] = *(writeData+i);
|
||
}
|
||
CalulateCRC(buff, 16, &buff[16]);
|
||
status = MFRC522_ToCard(PCD_TRANSCEIVE, buff, 18, buff, &recvBits);
|
||
|
||
if ((status != MI_OK) || (recvBits != 4) || ((buff[0] & 0x0F) != 0x0A))
|
||
{
|
||
status = MI_ERR;
|
||
}
|
||
}
|
||
|
||
return status;
|
||
}
|
||
|
||
|
||
/*
|
||
* 函 数 名：MFRC522_Halt
|
||
* 功能描述：命令卡片进入休眠状态
|
||
* 输入参数：无
|
||
* 返 回 值：无
|
||
*/
|
||
void MFRC522_Halt(void)
|
||
{
|
||
uchar status;
|
||
uint unLen;
|
||
uchar buff[4];
|
||
|
||
buff[0] = PICC_HALT;
|
||
buff[1] = 0;
|
||
CalulateCRC(buff, 2, &buff[2]);
|
||
|
||
status = MFRC522_ToCard(PCD_TRANSCEIVE, buff, 4, buff,&unLen);
|
||
}
|
||
|
||
|
||
const int scalePin = A0;
|
||
|
||
uchar serNum[5];
|
||
|
||
void setup() {
|
||
Serial.begin(9600);
|
||
SPI.begin();
|
||
pinMode(chipSelectPin,OUTPUT); // Set digital pin 10 as OUTPUT to connect it to the RFID /ENABLE pin
|
||
digitalWrite(chipSelectPin, LOW); // Activate the RFID reader
|
||
pinMode(NRSTPD,OUTPUT); // Set digital pin 10 , Not Reset and Power-down
|
||
digitalWrite(NRSTPD, HIGH);
|
||
MFRC522_Init();
|
||
}
|
||
|
||
int sample = 120; // Próbka (średnia z n pomiarów)
|
||
int stp = 0; // Numer pomiaru
|
||
unsigned long int sum = 0; // Suma w n-tym pomiarze
|
||
|
||
void loop()
|
||
{
|
||
uchar status;
|
||
uchar str[MAX_LEN];
|
||
uchar RC_size;
|
||
uchar blockAddr;
|
||
|
||
// Zbieranie i uśrdnianie wyników
|
||
if (stp == sample) {
|
||
Serial.print(sum/sample);
|
||
sum = 0;
|
||
stp = 0;
|
||
|
||
// Całe to gówno z RFIDami
|
||
status = MFRC522_Request(PICC_REQIDL, str);
|
||
status = MFRC522_Anticoll(str);
|
||
memcpy(serNum, str, 5);
|
||
if (status == MI_OK)
|
||
{
|
||
Serial.print("; " );
|
||
Serial.print(serNum[0],HEX);
|
||
Serial.print(serNum[1],HEX);
|
||
Serial.print(serNum[2],HEX);
|
||
Serial.println(serNum[3],HEX);
|
||
} else {
|
||
Serial.println("");
|
||
}
|
||
MFRC522_Halt();
|
||
} else {
|
||
sum += analogRead(scalePin);
|
||
stp += 1;
|
||
}
|
||
}
|