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代码
mfrc522.h
#ifndef __MRRC522_H__
#define __MRRC522_H__
/
//函数声名
/
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 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);
char M500PcdConfigISOType(unsigned char type);
void RC522Initialze();
/
//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)
#endifRC522.c
//#include "lpcreg.h"
#include "mfrc522.h"
#include <REG52.H>
#include <intrins.h>
//#include "main.h"
#define MAXRLEN 18
//端口定义
/
//MFRC500
sbit MF522_RST = P1^2; //RC500片选
sbit MF522_NSS = P1^0;
sbit MF522_SCK = P1^7;
sbit MF522_SI = P1^6;
sbit MF522_SO = P1^3;
/
//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
}
/
//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); ///清CRC完成标志位
WriteRawRC(CommandReg,PCD_IDLE); //取消当前命令
SetBitMask(FIFOLevelReg,0x80); //FIFO缓冲区读和写指针以及FIFO缓冲区溢出错误标志BufferOvfl清零
for (i=0; i<len; i++)
{ WriteRawRC(FIFODataReg, *(pIndata+i)); }
WriteRawRC(CommandReg, PCD_CALCCRC); //进行CRC计算
i = 0xFF;
do
{
n = ReadRawRC(DivIrqReg);
i--;
}
while ((i!=0) && !(n&0x04)); //检测CRC完成标志位
pOutData[0] = ReadRawRC(CRCResultRegL); //读CRC计算结果
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); //复位
_nop_();
WriteRawRC(ModeReg,0x3D); //启动发送器，SIGIN高有效 ，和Mifare卡通讯，CRC初始值0x6363
WriteRawRC(TReloadRegL,30); //定时器重装载值
WriteRawRC(TReloadRegH,0);
WriteRawRC(TModeReg,0x8D); //定时器设置，分频值
WriteRawRC(TPrescalerReg,0x3E); //定时器设置
WriteRawRC(TxAutoReg,0x40); //控制天线驱动器
return MI_OK;
}
/
//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);
}
char M500PcdConfigISOType(unsigned char type)
{
if (type == 'A') //ISO14443_A
{
ClearBitMask(Status2Reg,0x08);//软件清零标志位
WriteRawRC(ModeReg,0x3D); //启动发送器，SIGIN高有效 ，和Mifare卡通讯，CRC初始值0x6363//3F
WriteRawRC(RxSelReg,0x86);//84选择内部接收器设置
WriteRawRC(RFCfgReg,0x7F); //设置接收器增益为48dB
WriteRawRC(TReloadRegL,30); //定时器重装载值 ;//tmoLength);// TReloadVal = 'h6a =tmoLength(dec)
WriteRawRC(TReloadRegH,0);
WriteRawRC(TModeReg,0x8D); //定时器设置
WriteRawRC(TPrescalerReg,0x3E);//定时器设置
PcdAntennaOn();
}
else{ return -1; }
return MI_OK;
}
void RC522Initialze()
{
PcdReset();
PcdAntennaOff(); //关闭天线
PcdAntennaOn(); //开启天线
// M500PcdConfigISOType('A');
}
/
//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); //设置各中断请求传递到IRQ引脚，D7=1:有中断时IRQ为低，
ClearBitMask(ComIrqReg,0x80); //ComIrqReg屏蔽位清零
WriteRawRC(CommandReg,PCD_IDLE); //取消当前命令
SetBitMask(FIFOLevelReg,0x80); //FIFO缓冲区读和写指针以及FIFO缓冲区溢出错误标志BufferOvfl清零
for (i=0; i<InLenByte; i++)
{ WriteRawRC(FIFODataReg, pInData[i]); } //要发送的数据写入FIFO缓冲区
WriteRawRC(CommandReg, Command);
if (Command == PCD_TRANSCEIVE)
{ SetBitMask(BitFramingReg,0x80); } //start TX
// delay1ms(100);
i = 2000;//根据时钟频率调整，操作M1卡最大等待时间25ms
do
{
n = ReadRawRC(ComIrqReg); //读中断请求标志
i--;
}
while ((i!=0) && !(n&0x01) && !(n&waitFor));
ClearBitMask(BitFramingReg,0x80); //stop TX
if (i!=0)
{
if(!(ReadRawRC(ErrorReg)&0x1B)) //检测是否有出现的种错误
{
status = MI_OK;
if (n & irqEn & 0x01)
{ status = MI_NOTAGERR; }
if (Command == PCD_TRANSCEIVE)
{
n = ReadRawRC(FIFOLevelReg); //读FIFO缓冲区中的字节数
lastBits = ReadRawRC(ControlReg) & 0x07; //查看最后接收到的字节有效位的数目，如果为0则整个字节有效
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); } //获取接收到的数据
}
}
else
{ status = MI_ERR; }
}
SetBitMask(ControlReg,0x80); // stop timer now
WriteRawRC(CommandReg,PCD_IDLE); //取消当前命令
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);//软件清零标志位
WriteRawRC(BitFramingReg,0x07);//停止发送，设置接收到的LSB放在位0，接收到的第2 位放在位1，D2D1D0=111表示最后一个字节发7位
SetBitMask(TxControlReg,0x03);//对天线是否发送调制数据设置，开启天线
ucComMF522Buf[0] = req_code;
status = PcdComMF522(PCD_TRANSCEIVE,ucComMF522Buf,1,ucComMF522Buf,&unLen);
if ((status == MI_OK) && (unLen == 0x10)) //传回16位卡片类型代码
{
*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); //软件清零标志位
WriteRawRC(BitFramingReg,0x00); //停止发送，设置接收到的LSB放在位0，接收到的第2 位放在位1，D2D1D0=000表示最后一个字节的所有位都发送
ClearBitMask(CollReg,0x80);//设置为接收到的位在冲突后将被清零
ucComMF522Buf[0] = PICC_ANTICOLL1;
ucComMF522Buf[1] = 0x20;
status = PcdComMF522(PCD_TRANSCEIVE,ucComMF522Buf,2,ucComMF522Buf,&unLen);
if (status == MI_OK)
{
for (i=0; i<4; i++)
{
*(pSnr+i) = ucComMF522Buf[i];
snr_check ^= ucComMF522Buf[i];
}
if (snr_check != ucComMF522Buf[i])
{ status = MI_ERR; }
}
SetBitMask(CollReg,0x80); //设置对防冲突位的处理
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);//软件清零标志位
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<4; 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))) //查看是否验证成功
{ status = MI_ERR; }
return status;
}
/
//功 能：读取M1卡一块数据
//参数说明: addr[IN]：块地址
// pData[OUT]：读出的数据，16字节
//返 回: 成功返回MI_OK
/
char PcdRead(unsigned char addr,unsigned char *pData)
{
char status;
unsigned int unLen;
unsigned char i,ucComMF522Buf[MAXRLEN];
ucComMF522Buf[0] = PICC_READ;
ucComMF522Buf[1] = addr;
CalulateCRC(ucComMF522Buf,2,&ucComMF522Buf[2]);
status = PcdComMF522(PCD_TRANSCEIVE,ucComMF522Buf,4,ucComMF522Buf,&unLen);
if ((status == MI_OK) && (unLen == 0x90))
// { memcpy(pData, ucComMF522Buf, 16); }
{
for (i=0; i<16; i++)
{ *(pData+i) = ucComMF522Buf[i]; }
}
else
{ status = MI_ERR; }
return status;
}
/
//功 能：写数据到M1卡一块
//参数说明: addr[IN]：块地址
// pData[IN]：写入的数据，16字节
//返 回: 成功返回MI_OK
/
char PcdWrite(unsigned char addr,unsigned char *pData)
{
char status;
unsigned int unLen;
unsigned char i,ucComMF522Buf[MAXRLEN];
ucComMF522Buf[0] = PICC_WRITE;
ucComMF522Buf[1] = addr;
CalulateCRC(ucComMF522Buf,2,&ucComMF522Buf[2]);
//选地址
status = PcdComMF522(PCD_TRANSCEIVE,ucComMF522Buf,4,ucComMF522Buf,&unLen);
if ((status != MI_OK) || (unLen != 4) || ((ucComMF522Buf[0] & 0x0F) != 0x0A))
{ status = MI_ERR; }
//发数据
if (status == MI_OK)
{
//memcpy(ucComMF522Buf, pData, 16);
for (i=0; i<16; i++)
{ ucComMF522Buf[i] = *(pData+i); }
CalulateCRC(ucComMF522Buf,16,&ucComMF522Buf[16]);
status = PcdComMF522(PCD_TRANSCEIVE,ucComMF522Buf,18,ucComMF522Buf,&unLen);
if ((status != MI_OK) || (unLen != 4) || ((ucComMF522Buf[0] & 0x0F) != 0x0A))
{ status = MI_ERR; }
}
return status;
}
///
//功 能：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 i,ucComMF522Buf[MAXRLEN];
ucComMF522Buf[0] = dd_mode;
ucComMF522Buf[1] = addr;
CalulateCRC(ucComMF522Buf,2,&ucComMF522Buf[2]);
//先选中内存单元地址
status = PcdComMF522(PCD_TRANSCEIVE,ucComMF522Buf,4,ucComMF522Buf,&unLen);
if ((status != MI_OK) || (unLen != 4) || ((ucComMF522Buf[0] & 0x0F) != 0x0A))
{ status = MI_ERR; }
//写入更改的数值
if (status == MI_OK)
{
// memcpy(ucComMF522Buf, pValue, 4);
for (i=0; i<4; i++)
{ ucComMF522Buf[i] = *(pValue+i); }
CalulateCRC(ucComMF522Buf,4,&ucComMF522Buf[4]);
unLen = 0;
status = PcdComMF522(PCD_TRANSCEIVE,ucComMF522Buf,6,ucComMF522Buf,&unLen);
if (status != MI_ERR)
{ status = MI_OK; }
}
//更新缓存中的计算结果到内存中
if (status == MI_OK)
{
ucComMF522Buf[0] = PICC_TRANSFER; //保存命令
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)
{
//清空原钱包数据
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;
}
///
//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;
}main.h
#ifndef __MAIN_H__
#define __MAIN_H__
#include <REG52.H>
sbit LED_GREEN = P0^0;
sbit LED_test0 = P0^0;
sbit LED_test1 = P0^1;
sbit LED_test2 = P0^2;
sbit LED_test3 = P0^3;
sbit LED_test4 = P0^4;
sbit LED_test5 = P0^5;
sbit LED_test6 = P0^6;
sbit LED_test7 = P0^7;
sbit K1=P3^2;
void delay1ms(unsigned int i);
void UART_init();
void UART_send_string(unsigned char *str);
void UART_send_char(unsigned char dat);
extern unsigned char Recive_flag,RECIEVE_DAT[10],RECIEVE_DAT2[10];
//
/
//函数原型
/
void InitializeSystem();
#endifmain.c
//#include "lpcreg.h"
#include "mfrc522.h"
#include "main.h"
#include <REG52.H>
//指示灯
unsigned char code data1[16] = {0x12,0x34,0x56,0x78,0xED,0xCB,0xA9,0x87,0x12,0x34,0x56,0x78,0x01,0xFE,0x01,0xFE};
//M1卡的某一块写为如下格式，则该块为钱包，可接收扣款和充值命令
//4字节金额（低字节在前）＋4字节金额取反＋4字节金额＋1字节块地址＋1字节块地址取反＋1字节块地址＋1字节块地址取反
unsigned char code data2[4] = {0x12,0,0,0};
unsigned char code DefaultKey[6] = {0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF};
unsigned char xdata g_ucTempbuf[20];
/
//系统初始化
/
void InitializeSystem()
{
// P0M1 = 0x0; P0M2 = 0x0;
// P1M1 = 0x0; P1M2 = 0x0;
// P3M1 = 0x0; P3M2 = 0xFF;
P0 = 0xFF; P1 = 0xFF; P3 = 0xFF;
}
unsigned char Recive_flag=0,RECIEVE_DAT[10]=0,RECIEVE_DAT2[10]=0;
void delay1ms(unsigned int i)
{
unsigned int j;
while(i--)
{
for(j=0;j<115;j++)
{
;
}
}
}
void UART_init()
{
SCON=0x50;
PCON=0X00;
TMOD=0X20;
TH1=TL1=0XFA; //波特率4800
EA=1;
ES=1;
TR1=1;
}
void UART_send_string(unsigned char *str)
{
while(*str)
{
SBUF=*str;
while(!TI);
TI=0;
str++;
}
}
void UART_send_char(unsigned char dat)
{
SBUF=dat;
while(!TI);
TI=0;
}
void INT_UART_recive() interrupt 4
{
unsigned char recive_dat=0;
if(RI)
{
RI=0;
Recive_flag=1;
recive_dat=SBUF;
RECIEVE_DAT[0]=recive_dat;
// UART_send_char(RECIEVE_DAT[0]);
}
}
void main( )
{
unsigned char status=0,i=0,j=0,y=0,sector=0,block=0,addrss_temp=100,block_read_count=0 ;
InitializeSystem( );
UART_init();
RC522Initialze();
LED_GREEN=1;
P0=0XFF;
P0=0XFF;
// Recive_flag=0;
while( 1 )
{
while(RECIEVE_DAT[0]!='A');
block=0;
addrss_temp=100;
block_read_count=0;
for(block=0;block<64;block++)
{
P0=0XFF;
if(addrss_temp==block)
{
block_read_count++;
if(block_read_count>=20)
{
UART_send_char(0xaa);
UART_send_char(block_read_count);
UART_send_char(block);
block_read_count=0;
break;
}
}
else
{
addrss_temp=block;
block_read_count=0;
}
status = PcdRequest(PICC_REQIDL, g_ucTempbuf);//寻天线区内全部卡
if (status != MI_OK)
{
LED_test7=0;
block--;
continue;
}
else
{
LED_test0=0;
}
/
status = PcdAnticoll(g_ucTempbuf);
if (status != MI_OK)
{
LED_test7=0;
block--;
continue;
}
else
{
LED_test1=0;
}
/
status = PcdSelect(g_ucTempbuf);
if (status != MI_OK)
{
LED_test7=0;
block--;
continue;
}
else
{
LED_test2=0;
}
status = PcdAuthState(PICC_AUTHENT1A, block, DefaultKey, g_ucTempbuf);
if (status != MI_OK)
{
LED_test6=0;
block--;
continue;
}
else
{
LED_test3=0;
}
status = PcdRead(block, g_ucTempbuf);
if (status != MI_OK)
{
LED_test7=0;
block--;
continue;
}
for(j=0;j<16;j++)
{
UART_send_char(g_ucTempbuf[j]);
}
// while(1);
/
status = PcdWrite(1, data1);
if (status != MI_OK)
{
continue;
}
/
status = PcdValue(PICC_DECREMENT,1,data2);
if (status != MI_OK)
{
continue;
}
/
status = PcdBakValue(1, 2);
if (status != MI_OK)
{
continue;
}
/
status = PcdRead(2, g_ucTempbuf);
if (status != MI_OK)
{
continue;
}
if (status != MI_OK)
{
continue;
}
PcdHalt(); //命令卡片进入休眠状态
}
RECIEVE_DAT[0]=0;
}
}注意
1：对电线的初始化要先关再开
2：当电子标签（即S50或S70卡）某块作为钱包用时，12~15字节必须满足钱包的地址格式，即byte12=~byte13=byte14=~byte15,否则无法充值扣款和转存
3：电子标签（即S50或S70卡）每一个扇区的块3（即控制块）不要乱写入数据，否则很可能验证不成功或无法读出和写入这个块的数据，因为这个块控制着此扇区能否被写和和读出
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