MRC522(2):超简易门禁
2024-04-18 05:12:12
MRC522(2):超简易门禁
思路为先往M1卡内块二内写入密码，再次刷卡可验证密码正确与否来打开继电器。也可以通过存储M1卡号ID刷卡时验证ID正确与否从而打开继电器。
1.main.c
主函数：蜂鸣器和继电器进行推挽输出
#include "public.h"
#include "bmp.h"void main()
{//unsigned char status; // status用于获取当前RC522状态 Uart1Init();EA = 1;ES = 1;RC522_Reset(); // RC522初始化OLED_Init(); //OLED显示屏初始化OLED_Clear(); //清屏函数
// OLED_Fill(0xff);delay_1ms(1000);OLED_Fill(0x00);delay_1ms(1000);OLED_ShowString(0,0,"ID_Address:",16);P1M1=0x00;P1M0=0x08;beep = 0;P7M1=0x00;P7M0=0x10;P74=0;//继电器和蜂鸣器配置推挽输出Column1 = 0;//矩阵按键第一列置零while (1){Select_Mrc522();}
}
Select_Mrc522()函数进行刷卡模式与注册模式的切换 （通过key2）
void Select_Mrc522()
{if(!key2){delay_1ms(10);if(!key2){Flag++;beep = 1;delay_1ms(10);beep = 0;}while(!key2);}OLED_Clear_select(2,4);OLED_Clear_select(4,6);//清除显示屏第2-6区域if(Flag%2)Choose_function();//功能选择elseValidation();//开锁状态
}
初始上电状态
2.SetMrc522.c
按键key2进行模式切换，进入一个进行卡片的注册与删除功能（Choose_function函数），往卡片块二内写入Data_one密码。按键key2进行模式切换，OELD第2-6块显示ID号和块二存储密码（已十进制显示）。
Validation()函数通过验证块二密码正确与否从而打开继电器。
#include "public.h"//用于密码验证，密码错误将读卡失败（在块1中存储，卡默认密码，勿修改）
unsigned char DefaultKey[6] = {0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF};
unsigned char code Data_one[16] = {0x00,0x11,0x22,0x33};//写块2密码
unsigned char code Data_two[16] = {0x11,0x22,0x33,0x44};
unsigned char code Data_clear[4] = {0x00,0x00,0x00,0x00};
unsigned char code ID_1card[4] = {0x0A,0x3F,0x26,0x28}; //蓝小
unsigned char code ID_2card[4] = {0xF4,0xEF,0x48,0x2A}; //白大void Choose_function(void) //选择卡片功能
{uchar count;if(!key1){delay_1ms(10);if(!key1)count++;while(!key1);}if(count%2 == 0) //注册{OLED_ShowCHinese(0,6,0);OLED_ShowCHinese(16,6,1);OLED_ShowCHinese(32,6,6);OLED_ShowCHinese(48,6,7);OLED_ShowChar(64,6,'!',16);if(PcdRequest(PICC_REQIDL,Get_Sbuff)!=MI_OK)// 寻卡 { if(PcdRequest(PICC_REQIDL,Get_Sbuff) == MI_OK)// 防冲撞{if(PcdAnticoll(Get_Sbuff)==MI_OK) {if(PcdSelect(Get_Sbuff) == MI_OK) // 选定卡{if(PcdAuthState(PICC_AUTHENT1A, 1, DefaultKey, Get_Sbuff) == MI_OK)// 密码验证{PcdWrite(2,Data_one);// 往卡块2中写入注册数据PcdRead(2,mi);//读块2的16位数据beep = 1;delay_1ms(300);beep = 0;//蜂鸣器鸣响30msUart1_Byte(Get_Sbuff[0]);Uart1_Byte(Get_Sbuff[1]);Uart1_Byte(Get_Sbuff[2]);Uart1_Byte(Get_Sbuff[3]);OLED_ShowCard();//显示卡号ID//OLED_Clear_select(4,6);//删除 4 - 6区域OLED_Showsuccess();//卡片注册成功} }}PcdHalt(); //休眠卡}}}else{OLED_ShowCHinese(0,6,4);OLED_ShowCHinese(16,6,5);OLED_ShowCHinese(32,6,6);OLED_ShowCHinese(48,6,7);OLED_ShowChar(64,6,'!',16);if(PcdRequest(PICC_REQIDL,Get_Sbuff)!=MI_OK)// 寻卡 { if(PcdRequest(PICC_REQIDL,Get_Sbuff) == MI_OK)// 防冲撞{if(PcdAnticoll(Get_Sbuff)==MI_OK) {if(PcdSelect(Get_Sbuff) == MI_OK) // 选定卡{if(PcdAuthState(PICC_AUTHENT1A, 1, DefaultKey, Get_Sbuff) == MI_OK)// 密码验证{PcdWrite(2,Data_clear);// 往卡块2中写入注册数据 删除卡PcdRead(2,mi);beep = 1;delay_1ms(300);beep = 0;//蜂鸣器鸣响30msUart1_Byte(Get_Sbuff[0]);Uart1_Byte(Get_Sbuff[1]);Uart1_Byte(Get_Sbuff[2]);Uart1_Byte(Get_Sbuff[3]);OLED_ShowCard();//显示卡号ID//OLED_Clear_select(4,6);OLED_Showfill();//删除卡片} }}PcdHalt(); //休眠卡}}}
}void Validation() //是否注册
{uchar i;OLED_ShowCHinese(0,6,14);OLED_ShowCHinese(16,6,15);OLED_ShowCHinese(32,6,16);OLED_ShowCHinese(48,6,17);//显示 请刷卡片if(PcdRequest(PICC_REQIDL,Get_Sbuff)!=MI_OK)// 寻卡 { if(PcdRequest(PICC_REQIDL,Get_Sbuff) == MI_OK){if(PcdAnticoll(Get_Sbuff)==MI_OK) // 防冲撞{if(PcdSelect(Get_Sbuff) == MI_OK) // 选定卡{if(PcdAuthState(PICC_AUTHENT1A, 1, DefaultKey, Get_Sbuff) == MI_OK)// 密码验证{if(PcdRead(2,mi) == MI_OK){beep = 1;delay_1ms(300);beep = 0;//蜂鸣器鸣响30msOLED_ShowCard();//显示卡号IDfor(i=0;i<4;i++){if(Data_one[i]!=mi[i]){OLED_ShowCHinese(0,6,8);OLED_ShowCHinese(16,6,9);OLED_ShowCHinese(32,6,12);OLED_ShowCHinese(48,6,13);//显示开锁失败delay_1ms(1000);break;}if(i==3){ OLED_ShowCHinese(0,6,8);OLED_ShowCHinese(16,6,9);OLED_ShowCHinese(32,6,10);OLED_ShowCHinese(48,6,11);//显示开锁P74 = 1;delay_1ms(1000);P74 = 0;//继电器打开1s后关闭}}OLED_Clear_select(2,4);OLED_Clear_select(4,6);}} }}PcdHalt(); //休眠卡}}
}
SetMrc522.h
#ifndef _SetMrc522_H_
#define _SetMrc522_H_sbit beep = P1^3;
void Validation();
void Choose_function();
#endif
请添加图片描述
2.RC522.c (转载)
#include "public.h"#define MAXRLEN 18 // 最大接收长度// RC522模块引脚定义
#define MF522_NSS P73
#define MF522_SCK P72
#define MF522_SI P71
#define MF522_SO P70
#define MF522_RST P41/********************************** @函数名：RC522_Init* @描 述：rc522初始化* @参 数：无* @返回值：无*********************************/
void RC522_Reset(void)
{MF522_SCK = 1;MF522_NSS = 1;MF522_SI = 1;MF522_RST = 1;PcdReset(); // RC522复位PcdAntennaOff(); // 关闭天线delay_1ms(10);PcdAntennaOn(); // 打开天线delay_1ms(10);
}/********************************** @函数名：PcdRequest* @描 述：寻卡* @参 数：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* @返回值：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);WriteRawRC(BitFramingReg,0x07);SetBitMask(TxControlReg,0x03);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]; }elsestatus = MI_ERR;return status;
}/********************************** @函数名：PcdAnticoll* @描 述：防冲突* @参 数：pSnr[OUT]:卡片序列号，4字节* @返回值：成功返回MI_OK*********************************/
char PcdAnticoll(unsigned char *pSnr)
{char status;unsigned char i,snr_check=0;unsigned int unLen;unsigned char ucComMF522Buf[MAXRLEN];ClearBitMask(Status2Reg,0x08);WriteRawRC(BitFramingReg,0x00);ClearBitMask(CollReg,0x80);ucComMF522Buf[0] = PICC_ANTICOLL1;ucComMF522Buf[1] = 0x20;status = PcdComMF522(PCD_TRANSCEIVE,ucComMF522Buf,2,ucComMF522Buf,&unLen);if (status == MI_OK){for (i=0; i<4; i++){*(pSnr+i) = ucComMF522Buf[i];snr_check ^= ucComMF522Buf[i];}if (snr_check != ucComMF522Buf[i]){status = MI_ERR;}}SetBitMask(CollReg,0x80);return status;
}/********************************** @函数名：PcdSelect* @描 述：选定卡* @参 数：pSnr[IN]:卡片序列号，4字节* @返回值：成功返回MI_OK*********************************/
char PcdSelect(unsigned char *pSnr)
{char status;unsigned char i;unsigned int unLen;unsigned char ucComMF522Buf[MAXRLEN];ucComMF522Buf[0] = PICC_ANTICOLL1;ucComMF522Buf[1] = 0x70;ucComMF522Buf[6] = 0;for (i=0; i<4; i++){ucComMF522Buf[i+2] = *(pSnr+i);ucComMF522Buf[6] ^= *(pSnr+i);}CalulateCRC(ucComMF522Buf,7,&ucComMF522Buf[7]);ClearBitMask(Status2Reg,0x08);status = PcdComMF522(PCD_TRANSCEIVE,ucComMF522Buf,9,ucComMF522Buf,&unLen);if ((status == MI_OK) && (unLen == 0x18))status = MI_OK;elsestatus = MI_ERR;return status;
}/********************************** @函数名：PcdAuthState* @描 述：验证卡片密码* @参 数：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* pKey[IN]：密码* pSnr[IN]：卡片序列号，4字节* @返回值：成功返回MI_OK*********************************/
char PcdAuthState(unsigned char auth_mode,unsigned char addr,unsigned char *pKey,unsigned char *pSnr)
{char status;unsigned int unLen;unsigned char i,ucComMF522Buf[MAXRLEN];ucComMF522Buf[0] = auth_mode;ucComMF522Buf[1] = addr;for (i=0; i<6; i++){ucComMF522Buf[i+2] = *(pKey+i);}for (i=0; i<6; i++){ucComMF522Buf[i+8] = *(pSnr+i);}
// memcpy(&ucComMF522Buf[2], pKey, 6);
// memcpy(&ucComMF522Buf[8], pSnr, 4);status = PcdComMF522(PCD_AUTHENT,ucComMF522Buf,12,ucComMF522Buf,&unLen);if ((status != MI_OK) || (!(ReadRawRC(Status2Reg) & 0x08))){status = MI_ERR;}return status;
}/********************************** @函数名：PcdRead* @描 述：读取M1卡一块数据* @参 数：addr[IN]：块地址* pData[OUT]：读出的数据，16字节* @返回值：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;
}/********************************** @函数名：PcdWrite* @描 述：写数据到M1卡一块* @参 数：addr[IN]：块地址* pData[IN]：写入的数据，16字节* @返回值：成功返回MI_OK*********************************/
char PcdWrite(unsigned char addr,unsigned char *pData)
{char status;unsigned int unLen;unsigned char i,ucComMF522Buf[MAXRLEN];ucComMF522Buf[0] = PICC_WRITE;ucComMF522Buf[1] = addr;CalulateCRC(ucComMF522Buf,2,&ucComMF522Buf[2]);status = PcdComMF522(PCD_TRANSCEIVE,ucComMF522Buf,4,ucComMF522Buf,&unLen);if ((status != MI_OK) || (unLen != 4) || ((ucComMF522Buf[0] & 0x0F) != 0x0A)){status = MI_ERR;}if (status == MI_OK){//memcpy(ucComMF522Buf, pData, 16);for (i=0; i<16; i++){ucComMF522Buf[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;
}/********************************** @函数名：PcdValue* @描 述：扣款和充值* @参 数：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* @返回值：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]);// status = PcdComMF522(PCD_TRANSCEIVE,ucComMF522Buf,4,ucComMF522Buf,&unLen);// if ((status != MI_OK) || (unLen != 4) || ((ucComMF522Buf[0] & 0x0F) != 0x0A))
// {// status = MI_ERR;
// }// if (status == MI_OK)
// {// // memcpy(ucComMF522Buf, pValue, 4);
// for (i=0; i<16; i++)
// {// ucComMF522Buf[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;
// }
// }// if (status == MI_OK)
// {// ucComMF522Buf[0] = PICC_TRANSFER;
// ucComMF522Buf[1] = addr;
// CalulateCRC(ucComMF522Buf,2,&ucComMF522Buf[2]);// status = PcdComMF522(PCD_TRANSCEIVE,ucComMF522Buf,4,ucComMF522Buf,&unLen);// if ((status != MI_OK) || (unLen != 4) || ((ucComMF522Buf[0] & 0x0F) != 0x0A))
// {// status = MI_ERR;
// }
// }
// return status;
//}/********************************** @函数名：PcdBakValue* @描 述：备份钱包* @参 数：sourceaddr[IN]：源地址* goaladdr[IN]：目标地址* @返回值：成功返回MI_OK*********************************/
//char PcdBakValue(unsigned char sourceaddr, unsigned char goaladdr)
//{// char status;
// unsigned int unLen;
// unsigned char ucComMF522Buf[MAXRLEN];// ucComMF522Buf[0] = PICC_RESTORE;
// ucComMF522Buf[1] = sourceaddr;
// CalulateCRC(ucComMF522Buf,2,&ucComMF522Buf[2]);// status = PcdComMF522(PCD_TRANSCEIVE,ucComMF522Buf,4,ucComMF522Buf,&unLen);// if ((status != MI_OK) || (unLen != 4) || ((ucComMF522Buf[0] & 0x0F) != 0x0A))
// {// status = MI_ERR;
// }// if (status == MI_OK)
// {// ucComMF522Buf[0] = 0;
// ucComMF522Buf[1] = 0;
// ucComMF522Buf[2] = 0;
// ucComMF522Buf[3] = 0;
// CalulateCRC(ucComMF522Buf,4,&ucComMF522Buf[4]);// status = PcdComMF522(PCD_TRANSCEIVE,ucComMF522Buf,6,ucComMF522Buf,&unLen);
// if (status != MI_ERR)
// {// status = MI_OK;
// }
// }// if (status != MI_OK)
// {// return MI_ERR;
// }// ucComMF522Buf[0] = PICC_TRANSFER;
// ucComMF522Buf[1] = goaladdr;// CalulateCRC(ucComMF522Buf,2,&ucComMF522Buf[2]);// status = PcdComMF522(PCD_TRANSCEIVE,ucComMF522Buf,4,ucComMF522Buf,&unLen);// if ((status != MI_OK) || (unLen != 4) || ((ucComMF522Buf[0] & 0x0F) != 0x0A))
// {// status = MI_ERR;
// }// return status;
//}/********************************** @函数名：PcdHalt* @描 述：命令卡片进入休眠状态* @参 数：无* @返回值：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;
}/********************************** @函数名：CalulateCRC* @描 述：用MF522计算CRC16函数*********************************/
void CalulateCRC(unsigned char *pIndata,unsigned char len,unsigned char *pOutData)
{unsigned char i,n;ClearBitMask(DivIrqReg,0x04);WriteRawRC(CommandReg,PCD_IDLE);SetBitMask(FIFOLevelReg,0x80);for (i=0; i<len; i++){WriteRawRC(FIFODataReg, *(pIndata+i));}WriteRawRC(CommandReg, PCD_CALCCRC);i = 0xFF;do{n = ReadRawRC(DivIrqReg);i--;}while ((i!=0) && !(n&0x04));pOutData[0] = ReadRawRC(CRCResultRegL);pOutData[1] = ReadRawRC(CRCResultRegM);
}/********************************** @函数名：PcdReset* @描 述：复位RC522* @参 数：无* @返回值：成功返回MI_OK*********************************/
char PcdReset(void)
{//unsigned char i;MF522_RST = 1;delay_1us(20); MF522_RST = 0;delay_1us(20);MF522_RST = 1;delay_1us(20); WriteRawRC(CommandReg,PCD_RESETPHASE);delay_1us(20); WriteRawRC(ModeReg,0x3D); //和Mifare卡通讯，CRC初始值0x6363WriteRawRC(TReloadRegL,30);WriteRawRC(TReloadRegH,0);WriteRawRC(TModeReg,0x8D);WriteRawRC(TPrescalerReg,0x3E);WriteRawRC(TxAutoReg,0x40);return MI_OK;
}/********************************** @函数名：ReadRawRC* @描 述：读RC632寄存器* @参 数：Address[IN]:寄存器地址* @返回值：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;delay_1us(20); }for(i=8; i>0; i--){MF522_SCK = 1;ucResult <<= 1;ucResult|=MF522_SO;MF522_SCK = 0;delay_1us(20); }MF522_NSS = 1;MF522_SCK = 1;return ucResult;
}/********************************** @函数名：WriteRawRC* @描 述：写RC632寄存器* @参 数：Address[IN]:寄存器地址* value[IN]:写入的值* @返回值：无*********************************/
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;delay_1us(20); }for(i=8; i>0; i--){MF522_SI = ((value&0x80)==0x80);MF522_SCK = 1;value <<= 1;MF522_SCK = 0;delay_1us(20); }MF522_NSS = 1;MF522_SCK = 1;
}/********************************** @函数名：SetBitMask* @描 述：置RC522寄存器位* @参 数：reg[IN]:寄存器地址* mask[IN]:置位值* @返回值：无*********************************/
void SetBitMask(unsigned char reg,unsigned char mask)
{char tmp = 0x0;tmp = ReadRawRC(reg);WriteRawRC(reg,tmp | mask); // set bit mask
}/********************************** @函数名：ClearBitMask* @描 述：清RC522寄存器位* @参 数：reg[IN]:寄存器地址* mask[IN]:清位值* @返回值：无*********************************/
void ClearBitMask(unsigned char reg,unsigned char mask)
{char tmp = 0x0;tmp = ReadRawRC(reg);WriteRawRC(reg, tmp & ~mask); // clear bit mask
}/********************************** @函数名：PcdComMF522* @描 述：通过RC522和ISO14443卡通讯* @参 数：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* @返回值：成功返回MI_OK*********************************/
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 = 600;//根据时钟频率调整，操作M1卡最大等待时间25msdo{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 nowWriteRawRC(CommandReg,PCD_IDLE);return status;
}/********************************** @函数名：PcdAntennaOn* @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* @参 数：无* @返回值：无*********************************/
void PcdAntennaOn()
{unsigned char i;i = ReadRawRC(TxControlReg);if (!(i & 0x03)){SetBitMask(TxControlReg, 0x03);}
}/********************************** @函数名：PcdAntennaOff* @描 述：关闭天线* @参 数：无* @返回值：无*********************************/
void PcdAntennaOff()
{ClearBitMask(TxControlReg, 0x03);
}
Rcc522.h
#ifndef _RC522_H
#define _RC522_H/
//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)/
//函数原型
/
char PcdReset(void);
void PcdAntennaOn(void);
void PcdAntennaOff(void);
char PcdRequest(unsigned char req_code,unsigned char *pTagType);
char PcdAnticoll(unsigned char *pSnr);
char PcdSelect(unsigned char *pSnr);
char PcdAuthState(unsigned char auth_mode,unsigned char addr,unsigned char *pKey,unsigned char *pSnr);
char PcdRead(unsigned char addr,unsigned char *pData);
char PcdWrite(unsigned char addr,unsigned char *pData);
char PcdValue(unsigned char dd_mode,unsigned char addr,unsigned char *pValue);
char PcdBakValue(unsigned char sourceaddr, unsigned char goaladdr);
char PcdHalt(void);
char PcdComMF522(unsigned char Command, unsigned char *pInData, unsigned char InLenByte,unsigned char *pOutData, unsigned int *pOutLenBit);
void CalulateCRC(unsigned char *pIndata,unsigned char len,unsigned char *pOutData);
void WriteRawRC(unsigned char Address,unsigned char value);
unsigned char ReadRawRC(unsigned char Address);
void SetBitMask(unsigned char reg,unsigned char mask);
void ClearBitMask(unsigned char reg,unsigned char mask);
void RC522_Reset(void);
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