首页 › Arduino › 数据类型转换问题

刘小白_xl 发表于 2016-12-16 18:53:11

数据类型转换问题

本人现在正在使用射频模块RC522，接收卡号，在串口接收到一系列的十六进制数， 这是卡的号码 515937D5EA --------->0x51,0x59,0x37,0xD5,0xEA，我想帮这个卡号编成字符串:'5','1','5','9','3','7','D','5','E','A'，然后在LCD12864上显示，尝试了好长时间，一直都是乱码。。。麻烦大神们帮我想想办法，谢了

zjz5717 发表于 2016-12-16 22:40:57

我想看看你的程序

zjz5717 发表于 2016-12-16 22:41:11

#include <SPI.h>

#define uchar unsigned char
#define uint unsigned int

//data array maxium length
#define MAX_LEN 16

/////////////////////////////////////////////////////////////////////
//set the pin
/////////////////////////////////////////////////////////////////////
const int chipSelectPin = 10;
const int NRSTPD = 5;



//MF522 command bits
#define PCD_IDLE 0x00 //NO action; cancel current commands
#define PCD_AUTHENT 0x0E //verify password key
#define PCD_RECEIVE 0x08 //receive data
#define PCD_TRANSMIT 0x04 //send data
#define PCD_TRANSCEIVE 0x0C //send and receive data
#define PCD_RESETPHASE 0x0F //reset
#define PCD_CALCCRC 0x03 //CRC check and caculation

//Mifare_One card command bits
#define PICC_REQIDL 0x26 //Search the cards that not into sleep mode in the antenna area
#define PICC_REQALL 0x52 //Search all the cards in the antenna area
#define PICC_ANTICOLL 0x93 //prevent conflict
#define PICC_SElECTTAG 0x93 //select card
#define PICC_AUTHENT1A 0x60 //verify A password key
#define PICC_AUTHENT1B 0x61 //verify B password key
#define PICC_READ 0x30 //read
#define PICC_WRITE 0xA0 //write
#define PICC_DECREMENT 0xC0 //deduct value
#define PICC_INCREMENT 0xC1 //charge up value
#define PICC_RESTORE 0xC2 //Restore data into buffer
#define PICC_TRANSFER 0xB0 //Save data into buffer
#define PICC_HALT 0x50 //sleep mode


//THe mistake code that return when communicate with MF522
#define MI_OK 0
#define MI_NOTAGERR 1
#define MI_ERR 2


//------------------MFRC522 register ---------------
//Page 0:Command and Status
#define Reserved00 0x00
#define CommandReg 0x01
#define CommIEnReg 0x02
#define DivlEnReg 0x03
#define CommIrqReg 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 Reserved01 0x0F
//Page 1:Command
#define Reserved10 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 Reserved11 0x1A
#define Reserved12 0x1B
#define MifareReg 0x1C
#define Reserved13 0x1D
#define Reserved14 0x1E
#define SerialSpeedReg 0x1F
//Page 2:CFG
#define Reserved20 0x20
#define CRCResultRegM 0x21
#define CRCResultRegL 0x22
#define Reserved21 0x23
#define ModWidthReg 0x24
#define Reserved22 0x25
#define RFCfgReg 0x26
#define GsNReg 0x27
#define CWGsPReg 0x28
#define ModGsPReg 0x29
#define TModeReg 0x2A
#define TPrescalerReg 0x2B
#define TReloadRegH 0x2C
#define TReloadRegL 0x2D
#define TCounterValueRegH 0x2E
#define TCounterValueRegL 0x2F
//Page 3:TestRegister
#define Reserved30 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 Reserved31 0x3C
#define Reserved32 0x3D
#define Reserved33 0x3E
#define Reserved34 0x3F
//-----------------------------------------------

//4 bytes Serial number of card, the 5 bytes is verfiy bytes
uchar serNum;


void setup()
{
    Serial.begin(57600);
   
    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 5 , Not Reset and Power-down
   
    MFRC522_Init();
}


void loop()
{

    uchar status;
    uchar str;

   
    // Search card, return card types
    status = MFRC522_Request(PICC_REQIDL, str);
    if (status != MI_OK)
    {
      return;
    }
   
   
    // Show card type
    ShowCardType(str);
   
    //Prevent conflict, return the 4 bytes Serial number of the card
    status = MFRC522_Anticoll(str);
   
    // str: serial number of the card
    // str: XOR checksum of the SN.
    if (status == MI_OK)
    {
      Serial.print("The card's number is: ");
      memcpy(serNum, str, 5);
      ShowCardID(serNum);
   
      // Check people associated with card ID
      uchar* id = serNum;
      if( id==0x7E && id==0x61 && id==0xA9 && id==0x23 ) {
            Serial.println("Hello WHITE1!");
            delay(500);
      } else if(id==0xF1 && id==0x40 && id==0x96 && id==0xBD) {
            Serial.println("Hello white2!");
            delay(500);
      }else if(id==0x04 && id==0xB3 && id==0x27 && id==0x6F) {
            Serial.println("Hello BLUE1");
            delay(500);
      }
      else if(id==0x32 && id==0x07 && id==0xED && id==0x32) {
            Serial.println("Hello blue2!");
            delay(500);
      }
      else{
            Serial.println("You! Get off there!");
            delay(500);
      }
    }

   
    MFRC522_Halt(); //command the card into sleep mode

    delay(200);
}

/*
* Function：ShowCardID
* Description：Show Card ID
* Input parameter：ID string
* Return：Null
*/
void ShowCardID(uchar *id)
{
    int IDlen=4;
    for(int i=0; i<IDlen; i++){
      Serial.print(0x0F & (id>>4), HEX);
      Serial.print(0x0F & id,HEX);
    }
    Serial.println("");
}

/*
* Function：ShowCardType
* Description：Show Card type
* Input parameter：Type string
* Return：Null
*/
void ShowCardType(uchar* type)
{
    Serial.print("Card type: ");
    if(type==0x04&&type==0x00)
      Serial.println("MFOne-S50");
    else if(type==0x02&&type==0x00)
      Serial.println("MFOne-S70");
    else if(type==0x44&&type==0x00)
      Serial.println("MF-UltraLight");
    else if(type==0x08&&type==0x00)
      Serial.println("MF-Pro");
    else if(type==0x44&&type==0x03)
      Serial.println("MF Desire");
    else
      Serial.println("Unknown");
}

/*
* Function：Write_MFRC5200
* Description：write a byte data into one register of MR RC522
* Input parameter：addr--register address；val--the value that need to write in
* Return：Null
*/
void Write_MFRC522(uchar addr, uchar val)
{
    digitalWrite(chipSelectPin, LOW);

    //address format：0XXXXXX0
    SPI.transfer((addr<<1)&0x7E);
    SPI.transfer(val);
   
    digitalWrite(chipSelectPin, HIGH);
}


/*
* Function：Read_MFRC522
* Description：read a byte data into one register of MR RC522
* Input parameter：addr--register address
* Return：return the read value
*/
uchar Read_MFRC522(uchar addr)
{
    uchar val;

    digitalWrite(chipSelectPin, LOW);

    //address format：1XXXXXX0
    SPI.transfer(((addr<<1)&0x7E) | 0x80);
    val =SPI.transfer(0x00);
   
    digitalWrite(chipSelectPin, HIGH);
   
    return val;
}

/*
* Function：SetBitMask
* Description：set RC522 register bit
* Input parameter：reg--register address;mask--value
* Return：null
*/
void SetBitMask(uchar reg, uchar mask)
{
    uchar tmp;
    tmp = Read_MFRC522(reg);
    Write_MFRC522(reg, tmp | mask); // set bit mask
}


/*
* Function：ClearBitMask
* Description：clear RC522 register bit
* Input parameter：reg--register address;mask--value
* Return：null
*/
void ClearBitMask(uchar reg, uchar mask)
{
    uchar tmp;
    tmp = Read_MFRC522(reg);
    Write_MFRC522(reg, tmp & (~mask)); // clear bit mask
}


/*
* Function：AntennaOn
* Description：Turn on antenna, every time turn on or shut down antenna need at least 1ms delay
* Input parameter：null
* Return：null
*/
void AntennaOn(void)
{
    uchar temp;

    temp = Read_MFRC522(TxControlReg);
    if (!(temp & 0x03))
    {
      SetBitMask(TxControlReg, 0x03);
    }
}


/*
* Function：AntennaOff
* Description：Turn off antenna, every time turn on or shut down antenna need at least 1ms delay
* Input parameter：null
* Return：null
*/
void AntennaOff(void)
{
    ClearBitMask(TxControlReg, 0x03);
}


/*
* Function：ResetMFRC522
* Description： reset RC522
* Input parameter：null
* Return：null
*/
void MFRC522_Reset(void)
{
    Write_MFRC522(CommandReg, PCD_RESETPHASE);
}


/*
* Function：InitMFRC522
* Description：initilize RC522
* Input parameter：null
* Return：null
*/
void MFRC522_Init(void)
{
    digitalWrite(NRSTPD,HIGH);

    MFRC522_Reset();
         
    //Timer: TPrescaler*TreloadVal/6.78MHz = 24ms
    Write_MFRC522(TModeReg, 0x8D); //Tauto=1; f(Timer) = 6.78MHz/TPreScaler
    Write_MFRC522(TPrescalerReg, 0x3E); //TModeReg + TPrescalerReg
    Write_MFRC522(TReloadRegL, 30);
    Write_MFRC522(TReloadRegH, 0);
   
    Write_MFRC522(TxAutoReg, 0x40); //100%ASK
    Write_MFRC522(ModeReg, 0x3D); //CRC initilizate value 0x6363 ???

    //ClearBitMask(Status2Reg, 0x08); //MFCrypto1On=0
    //Write_MFRC522(RxSelReg, 0x86); //RxWait = RxSelReg
    //Write_MFRC522(RFCfgReg, 0x7F); //RxGain = 48dB

    AntennaOn(); //turn on antenna
}


/*
* Function：MFRC522_Request
* Description：Searching card, read card type
* Input parameter：reqMode--search methods，
* TagType--return card types
* 0x4400 = Mifare_UltraLight
* 0x0400 = Mifare_One(S50)
* 0x0200 = Mifare_One(S70)
* 0x0800 = Mifare_Pro(X)
* 0x4403 = Mifare_DESFire
* return：return MI_OK if successed
*/
uchar MFRC522_Request(uchar reqMode, uchar *TagType)
{
    uchar status;
    uint backBits; //the data bits that received

    Write_MFRC522(BitFramingReg, 0x07); //TxLastBists = BitFramingReg ???
   
    TagType = reqMode;
    status = MFRC522_ToCard(PCD_TRANSCEIVE, TagType, 1, TagType, &backBits);

    if ((status != MI_OK) || (backBits != 0x10))
    {
      status = MI_ERR;
    }
   
    return status;
}


/*
* Function：MFRC522_ToCard
* Description：communicate between RC522 and ISO14443
* Input parameter：command--MF522 command bits
* sendData--send data to card via rc522
* sendLen--send data length
* backData--the return data from card
* backLen--the length of return data
* return：return MI_OK if successed
*/
uchar MFRC522_ToCard(uchar command, uchar *sendData, uchar sendLen, uchar *backData, uint *backLen)
{
    uchar status = MI_ERR;
    uchar irqEn = 0x00;
    uchar waitIRq = 0x00;
    uchar lastBits;
    uchar n;
    uint i;

    switch (command)
    {
      case PCD_AUTHENT: //verify card password
      {
            irqEn = 0x12;
            waitIRq = 0x10;
            break;
      }
      case PCD_TRANSCEIVE: //send data in the FIFO
      {
            irqEn = 0x77;
            waitIRq = 0x30;
            break;
      }
      default:
            break;
    }
   
    Write_MFRC522(CommIEnReg, irqEn|0x80); //Allow interruption
    ClearBitMask(CommIrqReg, 0x80); //Clear all the interrupt bits
    SetBitMask(FIFOLevelReg, 0x80); //FlushBuffer=1, FIFO initilizate
   
    Write_MFRC522(CommandReg, PCD_IDLE); //NO action;cancel current command ???

    //write data into FIFO
    for (i=0; i<sendLen; i++)
    {
      Write_MFRC522(FIFODataReg, sendData);
    }

    //procceed it
    Write_MFRC522(CommandReg, command);
    if (command == PCD_TRANSCEIVE)
    {
      SetBitMask(BitFramingReg, 0x80); //StartSend=1,transmission of data starts
    }
   
    //waite receive data is finished
    i = 2000; //i should adjust according the clock, the maxium the waiting time should be 25 ms???
    do
    {
      //CommIrqReg
      //Set1 TxIRq RxIRq IdleIRq HiAlerIRq LoAlertIRq ErrIRq TimerIRq
      n = Read_MFRC522(CommIrqReg);
      i--;
    }
    while ((i!=0) && !(n&0x01) && !(n&waitIRq));

    ClearBitMask(BitFramingReg, 0x80); //StartSend=0
   
    if (i != 0)
    {
      if(!(Read_MFRC522(ErrorReg) & 0x1B)) //BufferOvfl Collerr CRCErr ProtecolErr
      {
            status = MI_OK;
            if (n & irqEn & 0x01)
            {
                status = MI_NOTAGERR; //??
            }
            
            if (command == PCD_TRANSCEIVE)
            {
                n = Read_MFRC522(FIFOLevelReg);
                lastBits = Read_MFRC522(ControlReg) & 0x07;
                if (lastBits)
                {
                  *backLen = (n-1)*8 + lastBits;
                }
                else
                {
                  *backLen = n*8;
                }
               
                if (n == 0)
                {
                  n = 1;
                }
                if (n > MAX_LEN)
                {
                  n = MAX_LEN;
                }
               
                //read the data from FIFO
                for (i=0; i<n; i++)
                {
                  backData = Read_MFRC522(FIFODataReg);
                }
            }
      }
      else
      {
            status = MI_ERR;
      }
      
    }
   
    //SetBitMask(ControlReg,0x80); //timer stops
    //Write_MFRC522(CommandReg, PCD_IDLE);

    return status;
}


/*
* Function：MFRC522_Anticoll
* Description：Prevent conflict, read the card serial number
* Input parameter：serNum--return the 4 bytes card serial number, the 5th byte is recheck byte
* return：return MI_OK if successed
*/
uchar MFRC522_Anticoll(uchar *serNum)
{
    uchar status;
    uchar i;
    uchar serNumCheck=0;
    uint unLen;
   
    //ClearBitMask(Status2Reg, 0x08); //strSensclear
    //ClearBitMask(CollReg,0x80); //ValuesAfterColl
    Write_MFRC522(BitFramingReg, 0x00); //TxLastBists = BitFramingReg

    serNum = PICC_ANTICOLL;
    serNum = 0x20;
    status = MFRC522_ToCard(PCD_TRANSCEIVE, serNum, 2, serNum, &unLen);

    if (status == MI_OK)
    {
      //Verify card serial number
      for (i=0; i<4; i++)
      {
            serNumCheck ^= serNum;
      }
      if (serNumCheck != serNum)
      {
            status = MI_ERR;
      }
    }

    //SetBitMask(CollReg, 0x80); //ValuesAfterColl=1

    return status;
}


/*
* Function：CalulateCRC
* Description：Use MF522 to caculate CRC
* Input parameter：pIndata--the CRC data need to be read，len--data length，pOutData-- the caculated result of CRC
* return：Null
*/
void CalulateCRC(uchar *pIndata, uchar len, uchar *pOutData)
{
    uchar i, n;

    ClearBitMask(DivIrqReg, 0x04); //CRCIrq = 0
    SetBitMask(FIFOLevelReg, 0x80); //Clear FIFO pointer
    //Write_MFRC522(CommandReg, PCD_IDLE);

    //Write data into FIFO
    for (i=0; i<len; i++)
    {
      Write_MFRC522(FIFODataReg, *(pIndata+i));
    }
    Write_MFRC522(CommandReg, PCD_CALCCRC);

    //waite CRC caculation to finish
    i = 0xFF;
    do
    {
      n = Read_MFRC522(DivIrqReg);
      i--;
    }
    while ((i!=0) && !(n&0x04)); //CRCIrq = 1

    //read CRC caculation result
    pOutData = Read_MFRC522(CRCResultRegL);
    pOutData = Read_MFRC522(CRCResultRegM);
}



/*
* Function：MFRC522_Write
* Description：write block data
* Input parameters：blockAddr--block address;writeData--Write 16 bytes data into block
* return：return MI_OK if successed
*/
uchar MFRC522_Write(uchar blockAddr, uchar *writeData)
{
    uchar status;
    uint recvBits;
    uchar i;
    uchar buff;
   
    buff = PICC_WRITE;
    buff = blockAddr;
    CalulateCRC(buff, 2, &buff);
    status = MFRC522_ToCard(PCD_TRANSCEIVE, buff, 4, buff, &recvBits);

    if ((status != MI_OK) || (recvBits != 4) || ((buff & 0x0F) != 0x0A))
    {
      status = MI_ERR;
    }
      
    if (status == MI_OK)
    {
      for (i=0; i<16; i++) //Write 16 bytes data into FIFO
      {
            buff = *(writeData+i);
      }
      CalulateCRC(buff, 16, &buff);
      status = MFRC522_ToCard(PCD_TRANSCEIVE, buff, 18, buff, &recvBits);
      
      if ((status != MI_OK) || (recvBits != 4) || ((buff & 0x0F) != 0x0A))
      {
            status = MI_ERR;
      }
    }
   
    return status;
}


/*
* Function：MFRC522_Halt
* Description：Command the cards into sleep mode
* Input parameters：null
* return：null
*/
void MFRC522_Halt(void)
{
    uchar status;
    uint unLen;
    uchar buff;

    buff = PICC_HALT;
    buff = 0;
    CalulateCRC(buff, 2, &buff);

    status = MFRC522_ToCard(PCD_TRANSCEIVE, buff, 4, buff,&unLen);
}

zjz5717 发表于 2016-12-16 22:42:14

我是建议你先把你的程序发上来看看，我的这个程序里面serNum和id两个变量都是字符串

刘小白_xl 发表于 2016-12-16 23:04:39

zjz5717 发表于 2016-12-16 22:40
我想看看你的程序

等我一下我很感谢你的回复   待会给程序

刘小白_xl 发表于 2016-12-16 23:07:16

zjz5717 发表于 2016-12-16 22:42
我是建议你先把你的程序发上来看看，我的这个程序里面serNum和id两个变量都是字符串

/**
读卡器与M1卡之间的通讯，首先要寻卡（Answer To Request），验证卡片类型
----》防冲突检查（Anticollision Loop）选择一张卡片，返回该卡序列号；
-----》选择卡片（Select Tag），选择被选中的卡的序列号，返回卡的容量代码；
-----》三次互相确认（3 Pass Authentication）通过密码校验之后，三次互相认证之后可以通讯。
*/
///////////////////RC522库///////////////////
#include <SPI.h>
#include <RFID.h>
///////////////////LCD12864库///////////////////
#include "LCD12864RSPI.h"
#define AR_SIZE( a ) sizeof( a ) / sizeof( a )
//////////////////GPS串口设置//////////////////
#define GpsSerialSerial3
#define DebugSerial Serial

#define MAX_LEN 16

//////////////////GPS结构体定义////////////////
struct
{
        char GPS_Buffer;
        bool isGetData;                //是否获取到GPS数据
        bool isParseData;        //是否解析完成
        char UTCTime;                //UTC时间
        char latitude;                //纬度
        char N_S;                //N/S
        char longitude;                //经度
        char E_W;                //E/W
        bool isUsefull;                //定位信息是否有效
} Save_Data;

const unsigned int gpsRxBufferLength = 600;
char gpsRxBuffer;
unsigned int ii = 0;
int L = 13; //LED指示灯引脚

unsigned char charserNum;
unsigned char id;
unsigned char latitude,longitude;
unsigned char sectorNewKeyA = {
      {0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF},
      {0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xff,0x07,0x80,0x69, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF},
      {0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xff,0x07,0x80,0x69, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF},};

RFID rfid(53,5);   //Arduino UNO R3 D10--读卡器SDA引脚、D5--读卡器RST引脚
                   //Arduino Mega 2560 --读卡器SDA引脚、D5--读卡器RST引脚

/////////定义显示屏上的汉字和图像///////////
unsigned char show0[]={0xD0,0xA1,0xD7,0xE9,0xB3,0xC9,0xD4,0xB1};//小组成员
unsigned char show1[]={0xC1,0xF5,0xBA,0xAE,0xD2,0xDD};//
unsigned char show2[]={0xBA,0xAB,0xEA,0xBB,0xD4,0xF3};//
unsigned char show3[]={0xC1,0xF5,0xB7,0xBD,0xC8,0xF3};//
unsigned char show4[]={0xD4,0xAC,0xD1,0xEF};//
unsigned char show5[]={0xCF,0xD4,0xCA,0xBE,0xD0,0xC5,0xCF,0xA2,0x3A,0x00};//显示信息:
unsigned char show6[]={0xBF,0xA8,0xBA,0xC5,0x3A,0x00};//卡号:
unsigned char show7[]={'E','r','r','o','r','!'};
unsigned char show8[]={0xBE,0xAD,0xB6,0xC8,0x3A,0x00};//经度:
unsigned char show9[]={0xCE,0xB3,0xB6,0xC8,0x3A,0x00};//纬度:
unsigned char logo0[]={                                       //笑脸
      0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
      0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
      0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
      0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
      0x00,0x00,0x00,0x00,0x00,0x00,0x01,0xFF,
      0x80,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
      0x00,0x00,0x00,0x00,0x00,0x00,0x1F,0xFF,
      0xF8,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
      0x00,0x00,0x00,0x00,0x00,0x00,0xFF,0xFF,
      0xFF,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
      0x00,0x00,0x00,0x00,0x00,0x03,0xFE,0x00,
      0x7F,0xC0,0x00,0x00,0x00,0x00,0x00,0x00,
      0x00,0x00,0x00,0x00,0x00,0x0F,0xF0,0x00,
      0x0F,0xF0,0x00,0x00,0x00,0x00,0x00,0x00,
      0x00,0x00,0x00,0x00,0x00,0x1F,0x80,0x00,
      0x01,0xF8,0x00,0x00,0x00,0x00,0x00,0x00,
      0x00,0x00,0x00,0x00,0x00,0x3E,0x00,0x00,
      0x00,0x7C,0x00,0x00,0x00,0x00,0x00,0x00,
      0x00,0x00,0x00,0x00,0x00,0xF8,0x00,0x00,
      0x00,0x1F,0x00,0x00,0x00,0x00,0x00,0x00,
      0x00,0x00,0x00,0x00,0x01,0xF0,0x00,0x00,
      0x00,0x0F,0x80,0x00,0x00,0x00,0x00,0x00,
      0x00,0x00,0x00,0x00,0x03,0xE0,0x00,0x00,
      0x00,0x07,0xC0,0x00,0x00,0x00,0x00,0x00,
      0x00,0x00,0x00,0x00,0x07,0xC0,0x00,0x00,
      0x00,0x01,0xE0,0x00,0x00,0x00,0x00,0x00,
      0x00,0x00,0x00,0x00,0x07,0x80,0x00,0x00,
      0x00,0x00,0xE0,0x00,0x00,0x00,0x00,0x00,
      0x00,0x00,0x00,0x00,0x0F,0x00,0x00,0x00,
      0x00,0x00,0xF0,0x00,0x00,0x00,0x00,0x00,
      0x00,0x00,0x00,0x00,0x1E,0x00,0x00,0x00,
      0x00,0x00,0x78,0x00,0x00,0x00,0x00,0x00,
      0x00,0x00,0x00,0x00,0x3C,0x00,0x00,0x00,
      0x00,0x00,0x3C,0x00,0x00,0x00,0x00,0x00,
      0x00,0x00,0x00,0x00,0x38,0x00,0x40,0x00,
      0x00,0x80,0x1C,0x00,0x00,0x00,0x00,0x00,
      0x00,0x00,0x00,0x00,0x78,0x03,0xF8,0x00,
      0x07,0xF0,0x1E,0x00,0x00,0x00,0x00,0x00,
      0x00,0x00,0x00,0x00,0x70,0x07,0xFE,0x00,
      0x0F,0xFC,0x0E,0x00,0x00,0x00,0x00,0x00,
      0x00,0x00,0x00,0x00,0xF0,0x1F,0xBF,0x00,
      0x3F,0x7E,0x0F,0x00,0x00,0x00,0x00,0x00,
      0x00,0x00,0x00,0x00,0xE0,0x3E,0x0F,0x80,
      0x7C,0x1F,0x07,0x00,0x00,0x00,0x00,0x00,
      0x00,0x00,0x00,0x00,0xE0,0x7C,0x07,0xC0,
      0xF8,0x0F,0x87,0x00,0x00,0x00,0x00,0x00,
      0x00,0x00,0x00,0x01,0xE0,0xF8,0x01,0xE1,
      0xF0,0x03,0xC3,0x80,0x00,0x00,0x00,0x00,
      0x00,0x00,0x00,0x01,0xC0,0xF0,0x01,0xE1,
      0xE0,0x03,0xC3,0x80,0x00,0x00,0x00,0x00,
      0x00,0x00,0x00,0x01,0xC0,0xE0,0x00,0xE1,
      0xC0,0x01,0xC3,0x80,0x00,0x00,0x00,0x00,
      0x00,0x00,0x00,0x01,0xC0,0x00,0x00,0x00,
      0x00,0x00,0x03,0x80,0x00,0x00,0x00,0x00,
      0x00,0x00,0x00,0x03,0x80,0x00,0x00,0x00,
      0x00,0x00,0x01,0xC0,0x00,0x00,0x00,0x00,
      0x00,0x00,0x00,0x03,0x80,0x00,0x00,0x00,
      0x00,0x00,0x01,0xC0,0x00,0x00,0x00,0x00,
      0x00,0x00,0x00,0x03,0x80,0x00,0x00,0x00,
      0x00,0x00,0x01,0xC0,0x00,0x00,0x00,0x00,
      0x00,0x00,0x00,0x03,0x80,0x00,0x00,0x00,
      0x00,0x00,0x01,0xC0,0x00,0x00,0x00,0x00,
      0x00,0x00,0x00,0x03,0x80,0x00,0x00,0x00,
      0x00,0x00,0x01,0xC0,0x00,0x00,0x00,0x00,
      0x00,0x00,0x00,0x03,0x80,0x00,0x00,0x00,
      0x00,0x00,0x01,0xC0,0x00,0x00,0x00,0x00,
      0x00,0x00,0x00,0x03,0x80,0x00,0x00,0x00,
      0x00,0x00,0x01,0xC0,0x00,0x00,0x00,0x00,
      0x00,0x00,0x00,0x03,0x80,0x00,0x00,0x00,
      0x00,0x00,0x01,0xC0,0x00,0x00,0x00,0x00,
      0x00,0x00,0x00,0x03,0x80,0x00,0x00,0x00,
      0x00,0x00,0x01,0xC0,0x00,0x00,0x00,0x00,
      0x00,0x00,0x00,0x03,0x80,0x00,0x00,0x00,
      0x00,0x00,0x01,0xC0,0x00,0x00,0x00,0x00,
      0x00,0x00,0x00,0x01,0xC0,0x00,0x00,0x00,
      0x00,0x00,0x01,0x80,0x00,0x00,0x00,0x00,
      0x00,0x00,0x00,0x01,0xC0,0x00,0x00,0x00,
      0x00,0x00,0x03,0x80,0x00,0x00,0x00,0x00,
      0x00,0x00,0x00,0x01,0xC0,0x00,0x00,0x00,
      0x00,0x00,0x03,0x80,0x00,0x00,0x00,0x00,
      0x00,0x00,0x00,0x01,0xE0,0x00,0x00,0x00,
      0x00,0x00,0x03,0x80,0x00,0x00,0x00,0x00,
      0x00,0x00,0x00,0x00,0xE0,0x00,0x00,0x00,
      0x00,0x00,0x07,0x00,0x00,0x00,0x00,0x00,
      0x00,0x00,0x00,0x00,0xE0,0x00,0x00,0x00,
      0x00,0x00,0x07,0x00,0x00,0x00,0x00,0x00,
      0x00,0x00,0x00,0x00,0xF0,0x00,0x0C,0x00,
      0x0C,0x00,0x0F,0x00,0x00,0x00,0x00,0x00,
      0x00,0x00,0x00,0x00,0x70,0x00,0x1E,0x00,
      0x1E,0x00,0x0E,0x00,0x00,0x00,0x00,0x00,
      0x00,0x00,0x00,0x00,0x78,0x00,0x1F,0x00,
      0x3E,0x00,0x1E,0x00,0x00,0x00,0x00,0x00,
      0x00,0x00,0x00,0x00,0x38,0x00,0x07,0x80,
      0xF8,0x00,0x1C,0x00,0x00,0x00,0x00,0x00,
      0x00,0x00,0x00,0x00,0x3C,0x00,0x03,0xE1,
      0xF0,0x00,0x3C,0x00,0x00,0x00,0x00,0x00,
      0x00,0x00,0x00,0x00,0x1E,0x00,0x01,0xFF,
      0xE0,0x00,0x78,0x00,0x00,0x00,0x00,0x00,
      0x00,0x00,0x00,0x00,0x0F,0x00,0x00,0xFF,
      0x80,0x00,0xF0,0x00,0x00,0x00,0x00,0x00,
      0x00,0x00,0x00,0x00,0x07,0x00,0x00,0x3F,
      0x00,0x00,0xF0,0x00,0x00,0x00,0x00,0x00,
      0x00,0x00,0x00,0x00,0x07,0x80,0x00,0x00,
      0x00,0x01,0xE0,0x00,0x00,0x00,0x00,0x00,
      0x00,0x00,0x00,0x00,0x03,0xE0,0x00,0x00,
      0x00,0x07,0xC0,0x00,0x00,0x00,0x00,0x00,
      0x00,0x00,0x00,0x00,0x01,0xF0,0x00,0x00,
      0x00,0x0F,0x80,0x00,0x00,0x00,0x00,0x00,
      0x00,0x00,0x00,0x00,0x00,0xF8,0x00,0x00,
      0x00,0x1F,0x00,0x00,0x00,0x00,0x00,0x00,
      0x00,0x00,0x00,0x00,0x00,0x3E,0x00,0x00,
      0x00,0x7E,0x00,0x00,0x00,0x00,0x00,0x00,
      0x00,0x00,0x00,0x00,0x00,0x1F,0x80,0x00,
      0x01,0xF8,0x00,0x00,0x00,0x00,0x00,0x00,
      0x00,0x00,0x00,0x00,0x00,0x0F,0xE0,0x00,
      0x07,0xF0,0x00,0x00,0x00,0x00,0x00,0x00,
      0x00,0x00,0x00,0x00,0x00,0x03,0xFE,0x00,
      0x3F,0xC0,0x00,0x00,0x00,0x00,0x00,0x00,
      0x00,0x00,0x00,0x00,0x00,0x00,0xFF,0xFF,
      0xFF,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
      0x00,0x00,0x00,0x00,0x00,0x00,0x1F,0xFF,
      0xF8,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
      0x00,0x00,0x00,0x00,0x00,0x00,0x01,0xFF,
      0x80,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
      0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
      0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
      0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
      0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00
};

void setup() {
Serial.begin(9600);
SPI.begin();    //SPI启动
rfid.init();    //RFID初始化
lcd12864_initdisplay();//12864初始化显示
GPS_init();//GPS初始化
}

void loop() {

unsigned char status;
unsigned char blockAddr; //选择操作的块地址0～63
unsigned char str;

/////////////显示相关信息//////////////
LCDA.DisplayString(0,0,show5,AR_SIZE(show5));//显示信息：
LCDA.DisplayString(1,0,show6,AR_SIZE(show6));//卡号:
LCDA.DisplayString(2,0,show8,AR_SIZE(show8));//经度:
LCDA.DisplayString(3,0,show9,AR_SIZE(show9));//纬度:
//找卡
if (rfid.isCard()) {
    Serial.println("Find the card!");
   
   // Show card type
    ShowCardType(str);
   
    //读取卡序列号
    if (rfid.readCardSerial()) {
      Serial.print("The card's number is: ");
      Serial.print(rfid.serNum,HEX);
      Serial.print(rfid.serNum,HEX);
      Serial.print(rfid.serNum,HEX);
      Serial.print(rfid.serNum,HEX);
      Serial.print(rfid.serNum,HEX);
      Serial.println(" ");
      
      for(int i=0;i<9;i+=2)
    {
      charserNum= rfid.serNum/4;
      charserNum= rfid.serNum%4;
    }
    LCDA.DisplayString(1,3,charserNum,AR_SIZE(charserNum));
      unsigned char* id = rfid.serNum;
      if( id==0x51 && id==0x59 && id==0x37 && id==0xD5 ) {//&& id==0xDA
            gpsRead();        //获取GPS数据
          parseGpsBuffer();//解析GPS数据
          printGpsBuffer();//输出解析后的数据
            memcpy(latitude,Save_Data.latitude,6);
            memcpy(longitude,Save_Data.longitude,6);
            LCDA.DisplayString(2,3,(unsigned char*)latitude,AR_SIZE(latitude));
            LCDA.DisplayString(3,3,(unsigned char*)longitude,AR_SIZE(longitude));
      }
   
    else if(id==0xF0 && id==0xD3 && id==0x3A && id==0xD5) {
            LCDA.DisplayString(2,3,show7,AR_SIZE(show7));
            LCDA.DisplayString(3,3,show7,AR_SIZE(show7));
      }
    else{
            LCDA.DisplayString(1,3,charserNum,AR_SIZE(charserNum));
            LCDA.DisplayString(2,3,show7,AR_SIZE(show7));
            LCDA.DisplayString(3,3,show7,AR_SIZE(show7));
      }
    }
    //选卡，可返回卡容量（锁定卡片，防止多数读取），去掉本行将连续读卡
    rfid.selectTag(rfid.serNum);
}

blockAddr = 7;                //数据块7
status = rfid.auth(PICC_AUTHENT1A, blockAddr, sectorNewKeyA, rfid.serNum);
if (status == MI_OK)//认证
{
    //读数据
    blockAddr = blockAddr - 3 ; //数据块4
    if( rfid.read(blockAddr, str) == MI_OK)
    {
      Serial.print("Read from the card ,the data is : ");
      Serial.println((char *)str);
    }
}
   
rfid.halt();

}



////////////LCD12864初始化//////////////
void lcd12864_initdisplay(){
    LCDA.initDriverPin(8,12,13); // E--8RS---12R/W---13MEGA
    LCDA.Initialise(); // 屏幕初始化
    delay(100);
    LCDA.CLEAR();//清屏
    delay(100);
    LCDA.DisplayString(0,2,show0,AR_SIZE(show0));//第一行第三格开始
    delay(100);
    LCDA.DisplayString(1,1,show1,AR_SIZE(show1));
    LCDA.DisplayString(1,5,show2,AR_SIZE(show2));
    LCDA.DisplayString(2,1,show3,AR_SIZE(show3));
    LCDA.DisplayString(2,5,show4,AR_SIZE(show4));
    delay(2000);
    LCDA.CLEAR();//清屏
    delay(100);
    LCDA.DrawFullScreen(logo0);
    delay(2000);
    LCDA.CLEAR();
    delay(100);
}

/*
* Function：ShowCardType
* Description：Show Card type
* Input parameter：Type string
* Return：Null
*/
void ShowCardType(unsigned char* type)
{
    Serial.print("Card type: ");
    if(type==0x04&&type==0x00)
      Serial.println("MFOne-S50");
    else if(type==0x02&&type==0x00)
      Serial.println("MFOne-S70");
    else if(type==0x44&&type==0x00)
      Serial.println("MF-UltraLight");
    else if(type==0x08&&type==0x00)
      Serial.println("MF-Pro");
    else if(type==0x44&&type==0x03)
      Serial.println("MF Desire");
    else
      Serial.println("Unknown");
}


/////////////////GPS初始化///////////////////
void GPS_init(){
      GpsSerial.begin(9600);                        //定义波特率9600
        DebugSerial.begin(9600);
        DebugSerial.println("GPS is Linking!");
        DebugSerial.println("Wating...");

        Save_Data.isGetData = false;
        Save_Data.isParseData = false;
        Save_Data.isUsefull = false;
}

void errorLog(int num)
{
        DebugSerial.print("ERROR");
        DebugSerial.println(num);
        while (1)
        {
                digitalWrite(L, HIGH);
                delay(300);
                digitalWrite(L, LOW);
                delay(300);
        }
}

//////////////输出解析后的数据//////////////
void printGpsBuffer()
{
        if (Save_Data.isParseData)
        {
                Save_Data.isParseData = false;
               
                DebugSerial.print("Save_Data.UTCTime = ");
                DebugSerial.println(Save_Data.UTCTime);

                if(Save_Data.isUsefull)
                {
                        Save_Data.isUsefull = false;
                        DebugSerial.print("Save_Data.latitude = ");
                        DebugSerial.println(Save_Data.latitude);
                        DebugSerial.print("Save_Data.N_S = ");
                        DebugSerial.println(Save_Data.N_S);
                        DebugSerial.print("Save_Data.longitude = ");
                        DebugSerial.println(Save_Data.longitude);
                        DebugSerial.print("Save_Data.E_W = ");
                        DebugSerial.println(Save_Data.E_W);
                }
                else
                {
                        DebugSerial.println("GPS DATA is not usefull!");
                }
               
        }
}

//////////////解析GPS数据///////////////
void parseGpsBuffer()
{
        char *subString;
        char *subStringNext;
        if (Save_Data.isGetData)
        {
                Save_Data.isGetData = false;
                DebugSerial.println("**************");
                DebugSerial.println(Save_Data.GPS_Buffer);

               
                for (int i = 0 ; i <= 6 ; i++)
                {
                        if (i == 0)
                        {
                                if ((subString = strstr(Save_Data.GPS_Buffer, ",")) == NULL)
                                        errorLog(1);        //解析错误
                        }
                        else
                        {
                                subString++;
                                if ((subStringNext = strstr(subString, ",")) != NULL)
                                {
                                        char usefullBuffer;
                                        switch(i)
                                        {
                                                case 1:memcpy(Save_Data.UTCTime, subString, subStringNext - subString);break;        //获取UTC时间
                                                case 2:memcpy(usefullBuffer, subString, subStringNext - subString);break;        //获取UTC时间
                                                case 3:memcpy(Save_Data.latitude, subString, subStringNext - subString);break;        //获取纬度信息
                                                case 4:memcpy(Save_Data.N_S, subString, subStringNext - subString);break;        //获取N/S
                                                case 5:memcpy(Save_Data.longitude, subString, subStringNext - subString);break;        //获取纬度信息
                                                case 6:memcpy(Save_Data.E_W, subString, subStringNext - subString);break;        //获取E/W

                                                default:break;
                                        }

                                        subString = subStringNext;
                                        Save_Data.isParseData = true;
                                        if(usefullBuffer == 'A')
                                                Save_Data.isUsefull = true;
                                        else if(usefullBuffer == 'V')
                                                Save_Data.isUsefull = false;

                                }
                                else
                                {
                                        errorLog(2);        //解析错误
                                }
                        }


                }
        }
}

///////////////获取GPS数据/////////////////
void gpsRead() {
        while (GpsSerial.available())
        {
                gpsRxBuffer = GpsSerial.read();
                if (ii == gpsRxBufferLength)clrGpsRxBuffer();
        }

        char* GPS_BufferHead;
        char* GPS_BufferTail;
        if ((GPS_BufferHead = strstr(gpsRxBuffer, "$GPRMC,")) != NULL || (GPS_BufferHead = strstr(gpsRxBuffer, "$GNRMC,")) != NULL )
        {
                if (((GPS_BufferTail = strstr(GPS_BufferHead, "\r\n")) != NULL) && (GPS_BufferTail > GPS_BufferHead))
                {
                        memcpy(Save_Data.GPS_Buffer, GPS_BufferHead, GPS_BufferTail - GPS_BufferHead);
                        Save_Data.isGetData = true;

                        clrGpsRxBuffer();
                }
        }
}

void clrGpsRxBuffer(void)
{
        memset(gpsRxBuffer, 0, gpsRxBufferLength);      //清空
        ii = 0;
}

zjz5717 发表于 2016-12-16 23:29:07

这个rfid.serNum返回的结果应该是unsigned char类型的了，你看一下能不能直接用，或者是我记得如果LCD1692用IIC转接板的话可以直接发送char类型的，就能识别，或者是lcd.print/lcd.write里面试试按照串口那样加[,HEX]

刘小白_xl 发表于 2016-12-16 23:30:32

zjz5717 发表于 2016-12-16 23:29
这个rfid.serNum返回的结果应该是unsigned char类型的了，你看一下能不能直接用，或者是我记得如果LCD1692 ...

有其他联系方式吗这上面说的费劲:lol

刘小白_xl 发表于 2016-12-16 23:34:24

zjz5717 发表于 2016-12-16 23:29
这个rfid.serNum返回的结果应该是unsigned char类型的了，你看一下能不能直接用，或者是我记得如果LCD1692 ...

我用的是12864没有用1602

zjz5717 发表于 2016-12-17 09:57:16

我先跟你说这么一个问题，serNum已经是unsigned char类型的了，我看到你又定义了一个charserNum的字符串，然后去做了一个处理是吧。
for(int i=0;i<9;i+=2)
    {
      charserNum= rfid.serNum/4;
      charserNum= rfid.serNum%4;
    }
我想问你的是，你知道rfid.serNum返回的是什么吗，你有注意到你的程序上面串口输出卡号的时候用的是rfid.serNum这一类的吗？
还有，对于char类型变量，我想知道的是，你认为char类型变量÷4或者求余4之后的结果是什么？因为我记得是，虽然它是char类型变量，但他是用ascii码表存储的数字，你直接将ascii的数字÷4，你看一下表是不是和你的乱码一样。。。
检查的时候记得用十进制检查。。。虽然串口输出是十六进制，但好像存储的数字是十进制的

刘小白_xl 发表于 2016-12-17 12:12:24

zjz5717 发表于 2016-12-17 09:57
我先跟你说这么一个问题，serNum已经是unsigned char类型的了，我看到你又定义了一个charserNum的字符串， ...

感谢你的回复和分析，我会试试的

查看完整版本: 数据类型转换问题