RFID-RC522/STM32F103RB/KEIL5 简单实现读取卡片ID

文章目录

- 序章
- 简单使用
- 核心源码
- 工程下载

序章

在这篇文章【 https://blog.csdn.net/qq_28877125/article/details/80437095 】的基础上修改完成！

简单使用

1).环境配置

MCU芯片型号：STM32F103RB
开发板：理论任何STM32开发板
KIDE：KEIL5
下载方式：J-LINK

2).程序编译

使用KEIL5打开工程后直接加载编译即可

3).程序烧录下载

编译无错后直接烧录即可

4).硬件配置

RC522与开发板连线:
串口配置：

5).读取卡片ID

1.重启开发板
2.将卡片放在感应区
3.串口显示卡片信息

核心源码

main.c

#include "delay.h"
#include "sys.h"
#include "usart.h"
#include "rc522.h"/*
版本:1.0.0:1.简单实现RFID-RC522的ID读取并打印到串口；使用教程:1.将RFID-RC522与STM32F103RB开发板按下面连线方式连线；2.然后将开发板通过USB转TLL连接到PC串口工具；3.然后重启开发板；4.将测试卡片放到感应区；5.即可在串口工具看到输出卡片相关信息。RC522相关配置文件：rc522_config.h
*//**
*   连线说明：
*   1--SDA  <----->PA4
*   2--SCK  <----->PA5
*   3--MOSI <----->PA7
*   4--MISO <----->PA6
*   5--悬空
*   6--GND <----->GND
*   7--RST <----->PB0
*   8--VCC <----->VCC
**/int main(void)
{delay_init();	    	 //延时函数初始化NVIC_PriorityGroupConfig(NVIC_PriorityGroup_2);//设置中断优先级分组为组2：2位抢占优先级，2位响应优先级uart_init(115200);	 	//串口初始化为115200RC522_Init();       //初始化射频卡模块while(1){RC522_Handel();}
}

rc522_config.h

#ifndef __RC522_CONFIG_H
#define __RC522_CONFIG_H//##################RC522配置###########define RC522_SPI_GPIO                       GPIOA
#define RC522_SPI_GPIO_ENABLED               RCC_APB2Periph_GPIOA
#define RC522_SPI_GPIO_PIN_CS                GPIO_Pin_4
#define RC522_SPI_GPIO_PIN_SCK               GPIO_Pin_5
#define RC522_SPI_GPIO_PIN_MISO              GPIO_Pin_6
#define RC522_SPI_GPIO_PIN_MOSI              GPIO_Pin_7#define RC522_SPI_GPIO_RST                   GPIOB
#define RC522_SPI_GPIO_RST_ENABLED           RCC_APB2Periph_GPIOB
#define RC522_SPI_GPIO_PIN_RST               GPIO_Pin_0#endif

rc522.c

#include "sys.h"
#include "rc522.h"
#include "delay.h"
#include "usart.h"
#include "string.h"
#include "rc522_config.h"//
// M1卡分为16个扇区，每个扇区由四个块（块0、块1、块2、块3）组成
// 将16个扇区的64个块按绝对地址编号为：0~63
// 第0个扇区的块0（即绝对地址0块），用于存放厂商代码，已经固化不可更改
// 每个扇区的块0、块1、块2为数据块，可用于存放数据
// 每个扇区的块3为控制块（绝对地址为:块3、块7、块11.....）包括密码A，存取控制、密码B等/*******************************
*连线说明：
*1--SDA  <----->PA4
*2--SCK  <----->PA5
*3--MOSI <----->PA7
*4--MISO <----->PA6
*5--悬空
*6--GND <----->GND
*7--RST <----->PB0
*8--VCC <----->VCC
************************************//*全局变量*/
unsigned char CT[2];//卡类型
unsigned char SN[4]; //卡号
unsigned char RFID[16];			//存放RFID
unsigned char lxl_bit=0;
unsigned char card1_bit=0;
unsigned char card2_bit=0;
unsigned char card3_bit=0;
unsigned char card4_bit=0;
unsigned char total=0;
unsigned char lxl[4]= {137,240,42,131};
unsigned char card_1[4]= {83,106,11,1};
unsigned char card_2[4]= {208,121,31,57};
unsigned char card_3[4]= {176,177,143,165};
unsigned char card_4[4]= {5,158,10,136};
u8 KEY[6]= {0xff,0xff,0xff,0xff,0xff,0xff};
u8 AUDIO_OPEN[6] = {0xAA, 0x07, 0x02, 0x00, 0x09, 0xBC};
unsigned char RFID1[16]= {0x00,0x00,0x00,0x00,0x00,0x00,0xff,0x07,0x80,0x29,0xff,0xff,0xff,0xff,0xff,0xff};
/*函数声明*/
unsigned char status;
unsigned char s=0x08;#define   RC522_DELAY()  delay_us( 20 )void RC522_Handel(void)
{status = PcdRequest(PICC_REQALL,CT);//寻卡//printf("\r\nstatus>>>>>>%d\r\n", status);if(status==MI_OK)// 寻卡成功{status=MI_ERR;status = PcdAnticoll(SN);// 防冲撞}if (status==MI_OK)// 防冲撞成功{status=MI_ERR;ShowID(SN); // 串口打印卡的ID号if((SN[0]==lxl[0])&&(SN[1]==lxl[1])&&(SN[2]==lxl[2])&&(SN[3]==lxl[3])){lxl_bit=1;printf("\r\nThe User is:card_0\r\n");}if((SN[0]==card_1[0])&&(SN[1]==card_1[1])&&(SN[2]==card_1[2])&&(SN[3]==card_1[3])){card1_bit=1;printf("\r\nThe User is:card_1\r\n");}if((SN[0]==card_2[0])&&(SN[1]==card_2[1])&&(SN[2]==card_2[2])&&(SN[3]==card_2[3])){card2_bit=1;printf("\r\nThe User is:card_2\r\n");}if((SN[0]==card_3[0])&&(SN[1]==card_3[1])&&(SN[2]==card_3[2])&&(SN[3]==card_3[3])){card3_bit=1;printf("\r\nThe User is:card_3\r\n");}if((SN[0]==card_4[0])&&(SN[1]==card_4[1])&&(SN[2]==card_4[2])&&(SN[3]==card_4[3])){card4_bit=1;printf("\r\nThe User is:card_4\r\n");}//total=card1_bit+card2_bit+card3_bit+card4_bit+lxl_bit;status =PcdSelect(SN);}if(status==MI_OK)//选卡成功{status=MI_ERR;status =PcdAuthState(0x60,0x09,KEY,SN);}if(status==MI_OK)//验证成功{status=MI_ERR;status=PcdRead(s,RFID);}if(status==MI_OK)//读卡成功{status=MI_ERR;delay_ms(100);}}void RC522_Init ( void )
{SPI1_Init();RC522_Reset_Disable();RC522_CS_Disable();PcdReset ();M500PcdConfigISOType ( 'A' );//设置工作方式}void SPI1_Init(void)
{GPIO_InitTypeDef GPIO_InitStructure;RCC_APB2PeriphClockCmd(	RC522_SPI_GPIO_ENABLED | RC522_SPI_GPIO_RST_ENABLED, ENABLE );//PORTA、B时钟使能// CSGPIO_InitStructure.GPIO_Pin = RC522_SPI_GPIO_PIN_CS;GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_PP; 		 //推挽输出GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;		 //IO口速度为50MHzGPIO_Init(RC522_SPI_GPIO, &GPIO_InitStructure);					 //根据设定参数初始化PF0、PF1// SCKGPIO_InitStructure.GPIO_Pin = RC522_SPI_GPIO_PIN_SCK;GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_PP; 		 //推挽输出GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;		 //IO口速度为50MHzGPIO_Init(RC522_SPI_GPIO , &GPIO_InitStructure);// MISOGPIO_InitStructure.GPIO_Pin = RC522_SPI_GPIO_PIN_MISO;GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN_FLOATING; 		 //推挽输出GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;		 //IO口速度为50MHzGPIO_Init(RC522_SPI_GPIO , &GPIO_InitStructure);// MOSIGPIO_InitStructure.GPIO_Pin = RC522_SPI_GPIO_PIN_MOSI;GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_PP; 		 //推挽输出GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;		 //IO口速度为50MHzGPIO_Init(RC522_SPI_GPIO , &GPIO_InitStructure);// RSTGPIO_InitStructure.GPIO_Pin = RC522_SPI_GPIO_PIN_RST;GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_PP; 		 //推挽输出GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;		 //IO口速度为50MHzGPIO_Init(RC522_SPI_GPIO_RST, &GPIO_InitStructure);}/** 函数名：SPI_RC522_SendByte* 描述  ：向RC522发送1 Byte 数据* 输入  ：byte，要发送的数据* 返回  : RC522返回的数据* 调用  ：内部调用*/
void SPI_RC522_SendByte ( u8 byte )
{u8 counter;for(counter=0; counter<8; counter++){if ( byte & 0x80 )RC522_MOSI_1 ();elseRC522_MOSI_0 ();RC522_DELAY();RC522_SCK_0 ();RC522_DELAY();RC522_SCK_1();RC522_DELAY();byte <<= 1;}}/** 函数名：SPI_RC522_ReadByte* 描述  ：从RC522发送1 Byte 数据* 输入  ：无* 返回  : RC522返回的数据* 调用  ：内部调用*/
u8 SPI_RC522_ReadByte ( void )
{u8 counter;u8 SPI_Data;for(counter=0; counter<8; counter++){SPI_Data <<= 1;RC522_SCK_0 ();RC522_DELAY();if ( RC522_MISO_GET() == 1)SPI_Data |= 0x01;RC522_DELAY();RC522_SCK_1 ();RC522_DELAY();}//	printf("****%c****",SPI_Data);return SPI_Data;
}/** 函数名：ReadRawRC* 描述  ：读RC522寄存器* 输入  ：ucAddress，寄存器地址* 返回  : 寄存器的当前值* 调用  ：内部调用*/
u8 ReadRawRC ( u8 ucAddress )
{u8 ucAddr, ucReturn;ucAddr = ( ( ucAddress << 1 ) & 0x7E ) | 0x80;RC522_CS_Enable();SPI_RC522_SendByte ( ucAddr );ucReturn = SPI_RC522_ReadByte ();RC522_CS_Disable();return ucReturn;
}/** 函数名：WriteRawRC* 描述  ：写RC522寄存器* 输入  ：ucAddress，寄存器地址*         ucValue，写入寄存器的值* 返回  : 无* 调用  ：内部调用*/
void WriteRawRC ( u8 ucAddress, u8 ucValue )
{u8 ucAddr;ucAddr = ( ucAddress << 1 ) & 0x7E;RC522_CS_Enable();SPI_RC522_SendByte ( ucAddr );SPI_RC522_SendByte ( ucValue );RC522_CS_Disable();
}/** 函数名：SetBitMask* 描述  ：对RC522寄存器置位* 输入  ：ucReg，寄存器地址*         ucMask，置位值* 返回  : 无* 调用  ：内部调用*/
void SetBitMask ( u8 ucReg, u8 ucMask )
{u8 ucTemp;ucTemp = ReadRawRC ( ucReg );WriteRawRC ( ucReg, ucTemp | ucMask );         // set bit mask}/** 函数名：ClearBitMask* 描述  ：对RC522寄存器清位* 输入  ：ucReg，寄存器地址*         ucMask，清位值* 返回  : 无* 调用  ：内部调用*/
void ClearBitMask ( u8 ucReg, u8 ucMask )
{u8 ucTemp;ucTemp = ReadRawRC ( ucReg );WriteRawRC ( ucReg, ucTemp & ( ~ ucMask) );  // clear bit mask}/** 函数名：PcdAntennaOn* 描述  ：开启天线* 输入  ：无* 返回  : 无* 调用  ：内部调用*/
void PcdAntennaOn ( void )
{u8 uc;uc = ReadRawRC ( TxControlReg );if ( ! ( uc & 0x03 ) )SetBitMask(TxControlReg, 0x03);}/** 函数名：PcdAntennaOff* 描述  ：开启天线* 输入  ：无* 返回  : 无* 调用  ：内部调用*/
void PcdAntennaOff ( void )
{ClearBitMask ( TxControlReg, 0x03 );}/** 函数名：PcdRese* 描述  ：复位RC522* 输入  ：无* 返回  : 无* 调用  ：外部调用*/
void PcdReset ( void )
{RC522_Reset_Disable();delay_us ( 1 );RC522_Reset_Enable();delay_us ( 1 );RC522_Reset_Disable();delay_us ( 1 );WriteRawRC ( CommandReg, 0x0f );while ( ReadRawRC ( CommandReg ) & 0x10 );delay_us ( 1 );WriteRawRC ( ModeReg, 0x3D );            //定义发送和接收常用模式 和Mifare卡通讯，CRC初始值0x6363WriteRawRC ( TReloadRegL, 30 );          //16位定时器低位WriteRawRC ( TReloadRegH, 0 );			 //16位定时器高位WriteRawRC ( TModeReg, 0x8D );		      //定义内部定时器的设置WriteRawRC ( TPrescalerReg, 0x3E );			 //设置定时器分频系数WriteRawRC ( TxAutoReg, 0x40 );				   //调制发送信号为100%ASK}/** 函数名：M500PcdConfigISOType* 描述  ：设置RC522的工作方式* 输入  ：ucType，工作方式* 返回  : 无* 调用  ：外部调用*/
void M500PcdConfigISOType ( u8 ucType )
{if ( ucType == 'A')                     //ISO14443_A{ClearBitMask ( Status2Reg, 0x08 );WriteRawRC ( ModeReg, 0x3D );//3FWriteRawRC ( RxSelReg, 0x86 );//84WriteRawRC( RFCfgReg, 0x7F );   //4FWriteRawRC( TReloadRegL, 30 );//tmoLength);// TReloadVal = 'h6a =tmoLength(dec)WriteRawRC ( TReloadRegH, 0 );WriteRawRC ( TModeReg, 0x8D );WriteRawRC ( TPrescalerReg, 0x3E );delay_us ( 2 );PcdAntennaOn ();//开天线}}/** 函数名：PcdComMF522* 描述  ：通过RC522和ISO14443卡通讯* 输入  ：ucCommand，RC522命令字*         pInData，通过RC522发送到卡片的数据*         ucInLenByte，发送数据的字节长度*         pOutData，接收到的卡片返回数据*         pOutLenBit，返回数据的位长度* 返回  : 状态值*         = MI_OK，成功* 调用  ：内部调用*/
char PcdComMF522 ( u8 ucCommand, u8 * pInData, u8 ucInLenByte, u8 * pOutData, u32 * pOutLenBit )
{char cStatus = MI_ERR;u8 ucIrqEn   = 0x00;u8 ucWaitFor = 0x00;u8 ucLastBits;u8 ucN;u32 ul;switch ( ucCommand ){case PCD_AUTHENT:		//Mifare认证ucIrqEn   = 0x12;		//允许错误中断请求ErrIEn  允许空闲中断IdleIEnucWaitFor = 0x10;		//认证寻卡等待时候 查询空闲中断标志位break;case PCD_TRANSCEIVE:		//接收发送 发送接收ucIrqEn   = 0x77;		//允许TxIEn RxIEn IdleIEn LoAlertIEn ErrIEn TimerIEnucWaitFor = 0x30;		//寻卡等待时候 查询接收中断标志位与 空闲中断标志位break;default:break;}WriteRawRC ( ComIEnReg, ucIrqEn | 0x80 );		//IRqInv置位管脚IRQ与Status1Reg的IRq位的值相反ClearBitMask ( ComIrqReg, 0x80 );			//Set1该位清零时，CommIRqReg的屏蔽位清零WriteRawRC ( CommandReg, PCD_IDLE );		//写空闲命令SetBitMask ( FIFOLevelReg, 0x80 );			//置位FlushBuffer清除内部FIFO的读和写指针以及ErrReg的BufferOvfl标志位被清除for ( ul = 0; ul < ucInLenByte; ul ++ )WriteRawRC ( FIFODataReg, pInData [ ul ] );    		//写数据进FIFOdataWriteRawRC ( CommandReg, ucCommand );					//写命令if ( ucCommand == PCD_TRANSCEIVE )SetBitMask(BitFramingReg,0x80);  				//StartSend置位启动数据发送 该位与收发命令使用时才有效ul = 1000;//根据时钟频率调整，操作M1卡最大等待时间25msdo 														//认证 与寻卡等待时间{ucN = ReadRawRC ( ComIrqReg );							//查询事件中断ul --;} while ( ( ul != 0 ) && ( ! ( ucN & 0x01 ) ) && ( ! ( ucN & ucWaitFor ) ) );		//退出条件i=0,定时器中断，与写空闲命令ClearBitMask ( BitFramingReg, 0x80 );					//清理允许StartSend位if ( ul != 0 ){if ( ! (( ReadRawRC ( ErrorReg ) & 0x1B )) )			//读错误标志寄存器BufferOfI CollErr ParityErr ProtocolErr{cStatus = MI_OK;if ( ucN & ucIrqEn & 0x01 )					//是否发生定时器中断cStatus = MI_NOTAGERR;if ( ucCommand == PCD_TRANSCEIVE ){ucN = ReadRawRC ( FIFOLevelReg );			//读FIFO中保存的字节数ucLastBits = ReadRawRC ( ControlReg ) & 0x07;	//最后接收到得字节的有效位数if ( ucLastBits )* pOutLenBit = ( ucN - 1 ) * 8 + ucLastBits;   	//N个字节数减去1（最后一个字节）+最后一位的位数 读取到的数据总位数else* pOutLenBit = ucN * 8;   					//最后接收到的字节整个字节有效if ( ucN == 0 )ucN = 1;if ( ucN > MAXRLEN )ucN = MAXRLEN;for ( ul = 0; ul < ucN; ul ++ )pOutData [ ul ] = ReadRawRC ( FIFODataReg );}}elsecStatus = MI_ERR;
//			printf(ErrorReg);}SetBitMask ( ControlReg, 0x80 );           // stop timer nowWriteRawRC ( CommandReg, PCD_IDLE );return cStatus;}/** 函数名：PcdRequest* 描述  ：寻卡* 输入  ：ucReq_code，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，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  : 状态值*         = MI_OK，成功* 调用  ：外部调用*/
char PcdRequest ( u8 ucReq_code, u8 * pTagType )
{char cStatus;u8 ucComMF522Buf [ MAXRLEN ];u32 ulLen;ClearBitMask ( Status2Reg, 0x08 );	//清理指示MIFARECyptol单元接通以及所有卡的数据通信被加密的情况WriteRawRC ( BitFramingReg, 0x07 );	//	发送的最后一个字节的 七位SetBitMask ( TxControlReg, 0x03 );	//TX1,TX2管脚的输出信号传递经发送调制的13.56的能量载波信号ucComMF522Buf [ 0 ] = ucReq_code;		//存入 卡片命令字cStatus = PcdComMF522 ( PCD_TRANSCEIVE,	ucComMF522Buf, 1, ucComMF522Buf, & ulLen );	//寻卡if ( ( cStatus == MI_OK ) && ( ulLen == 0x10 ) )	//寻卡成功返回卡类型{* pTagType = ucComMF522Buf [ 0 ];* ( pTagType + 1 ) = ucComMF522Buf [ 1 ];}elsecStatus = MI_ERR;return cStatus;}/** 函数名：PcdAnticoll* 描述  ：防冲撞* 输入  ：pSnr，卡片序列号，4字节* 返回  : 状态值*         = MI_OK，成功* 调用  ：外部调用*/
char PcdAnticoll ( u8 * pSnr )
{char cStatus;u8 uc, ucSnr_check = 0;u8 ucComMF522Buf [ MAXRLEN ];u32 ulLen;ClearBitMask ( Status2Reg, 0x08 );		//清MFCryptol On位 只有成功执行MFAuthent命令后，该位才能置位WriteRawRC ( BitFramingReg, 0x00);		//清理寄存器 停止收发ClearBitMask ( CollReg, 0x80 );			//清ValuesAfterColl所有接收的位在冲突后被清除ucComMF522Buf [ 0 ] = 0x93;	//卡片防冲突命令ucComMF522Buf [ 1 ] = 0x20;cStatus = PcdComMF522 ( PCD_TRANSCEIVE, ucComMF522Buf, 2, ucComMF522Buf, & ulLen);//与卡片通信if ( cStatus == MI_OK)		//通信成功{for ( uc = 0; uc < 4; uc ++ ){* ( pSnr + uc )  = ucComMF522Buf [ uc ];			//读出UIDucSnr_check ^= ucComMF522Buf [ uc ];}if ( ucSnr_check != ucComMF522Buf [ uc ] )cStatus = MI_ERR;}SetBitMask ( CollReg, 0x80 );return cStatus;}/** 函数名：CalulateCRC* 描述  ：用RC522计算CRC16* 输入  ：pIndata，计算CRC16的数组*         ucLen，计算CRC16的数组字节长度*         pOutData，存放计算结果存放的首地址* 返回  : 无* 调用  ：内部调用*/
void CalulateCRC ( u8 * pIndata, u8 ucLen, u8 * pOutData )
{u8 uc, ucN;ClearBitMask(DivIrqReg,0x04);WriteRawRC(CommandReg,PCD_IDLE);SetBitMask(FIFOLevelReg,0x80);for ( uc = 0; uc < ucLen; uc ++)WriteRawRC ( FIFODataReg, * ( pIndata + uc ) );WriteRawRC ( CommandReg, PCD_CALCCRC );uc = 0xFF;do{ucN = ReadRawRC ( DivIrqReg );uc --;} while ( ( uc != 0 ) && ! ( ucN & 0x04 ) );pOutData [ 0 ] = ReadRawRC ( CRCResultRegL );pOutData [ 1 ] = ReadRawRC ( CRCResultRegM );}/** 函数名：PcdSelect* 描述  ：选定卡片* 输入  ：pSnr，卡片序列号，4字节* 返回  : 状态值*         = MI_OK，成功* 调用  ：外部调用*/
char PcdSelect ( u8 * pSnr )
{char ucN;u8 uc;u8 ucComMF522Buf [ MAXRLEN ];u32  ulLen;ucComMF522Buf [ 0 ] = PICC_ANTICOLL1;ucComMF522Buf [ 1 ] = 0x70;ucComMF522Buf [ 6 ] = 0;for ( uc = 0; uc < 4; uc ++ ){ucComMF522Buf [ uc + 2 ] = * ( pSnr + uc );ucComMF522Buf [ 6 ] ^= * ( pSnr + uc );}CalulateCRC ( ucComMF522Buf, 7, & ucComMF522Buf [ 7 ] );ClearBitMask ( Status2Reg, 0x08 );ucN = PcdComMF522 ( PCD_TRANSCEIVE, ucComMF522Buf, 9, ucComMF522Buf, & ulLen );if ( ( ucN == MI_OK ) && ( ulLen == 0x18 ) )ucN = MI_OK;elseucN = MI_ERR;return ucN;}/** 函数名：PcdAuthState* 描述  ：验证卡片密码* 输入  ：ucAuth_mode，密码验证模式*                     = 0x60，验证A密钥*                     = 0x61，验证B密钥*         u8 ucAddr，块地址*         pKey，密码*         pSnr，卡片序列号，4字节* 返回  : 状态值*         = MI_OK，成功* 调用  ：外部调用*/
char PcdAuthState ( u8 ucAuth_mode, u8 ucAddr, u8 * pKey, u8 * pSnr )
{char cStatus;u8 uc, ucComMF522Buf [ MAXRLEN ];u32 ulLen;ucComMF522Buf [ 0 ] = ucAuth_mode;ucComMF522Buf [ 1 ] = ucAddr;for ( uc = 0; uc < 6; uc ++ )ucComMF522Buf [ uc + 2 ] = * ( pKey + uc );for ( uc = 0; uc < 6; uc ++ )ucComMF522Buf [ uc + 8 ] = * ( pSnr + uc );cStatus = PcdComMF522 ( PCD_AUTHENT, ucComMF522Buf, 12, ucComMF522Buf, & ulLen );if ( ( cStatus != MI_OK ) || ( ! ( ReadRawRC ( Status2Reg ) & 0x08 ) ) ){
//			if(cStatus != MI_OK)
//					printf("666")	;
//			else
//				printf("888");cStatus = MI_ERR;}return cStatus;}/** 函数名：PcdWrite* 描述  ：写数据到M1卡一块* 输入  ：u8 ucAddr，块地址*         pData，写入的数据，16字节* 返回  : 状态值*         = MI_OK，成功* 调用  ：外部调用*/
char PcdWrite ( u8 ucAddr, u8 * pData )
{char cStatus;u8 uc, ucComMF522Buf [ MAXRLEN ];u32 ulLen;ucComMF522Buf [ 0 ] = PICC_WRITE;ucComMF522Buf [ 1 ] = ucAddr;CalulateCRC ( ucComMF522Buf, 2, & ucComMF522Buf [ 2 ] );cStatus = PcdComMF522 ( PCD_TRANSCEIVE, ucComMF522Buf, 4, ucComMF522Buf, & ulLen );if ( ( cStatus != MI_OK ) || ( ulLen != 4 ) || ( ( ucComMF522Buf [ 0 ] & 0x0F ) != 0x0A ) )cStatus = MI_ERR;if ( cStatus == MI_OK ){memcpy(ucComMF522Buf, pData, 16);for ( uc = 0; uc < 16; uc ++ )ucComMF522Buf [ uc ] = * ( pData + uc );CalulateCRC ( ucComMF522Buf, 16, & ucComMF522Buf [ 16 ] );cStatus = PcdComMF522 ( PCD_TRANSCEIVE, ucComMF522Buf, 18, ucComMF522Buf, & ulLen );if ( ( cStatus != MI_OK ) || ( ulLen != 4 ) || ( ( ucComMF522Buf [ 0 ] & 0x0F ) != 0x0A ) )cStatus = MI_ERR;}return cStatus;
}/** 函数名：PcdRead* 描述  ：读取M1卡一块数据* 输入  ：u8 ucAddr，块地址*         pData，读出的数据，16字节* 返回  : 状态值*         = MI_OK，成功* 调用  ：外部调用*/
char PcdRead ( u8 ucAddr, u8 * pData )
{char cStatus;u8 uc, ucComMF522Buf [ MAXRLEN ];u32 ulLen;ucComMF522Buf [ 0 ] = PICC_READ;ucComMF522Buf [ 1 ] = ucAddr;CalulateCRC ( ucComMF522Buf, 2, & ucComMF522Buf [ 2 ] );cStatus = PcdComMF522 ( PCD_TRANSCEIVE, ucComMF522Buf, 4, ucComMF522Buf, & ulLen );if ( ( cStatus == MI_OK ) && ( ulLen == 0x90 ) ){for ( uc = 0; uc < 16; uc ++ )* ( pData + uc ) = ucComMF522Buf [ uc ];}elsecStatus = MI_ERR;return cStatus;}/** 函数名：PcdHalt* 描述  ：命令卡片进入休眠状态* 输入  ：无* 返回  : 状态值*         = MI_OK，成功* 调用  ：外部调用*/
char PcdHalt( void )
{u8 ucComMF522Buf [ MAXRLEN ];u32  ulLen;ucComMF522Buf [ 0 ] = PICC_HALT;ucComMF522Buf [ 1 ] = 0;CalulateCRC ( ucComMF522Buf, 2, & ucComMF522Buf [ 2 ] );PcdComMF522 ( PCD_TRANSCEIVE, ucComMF522Buf, 4, ucComMF522Buf, & ulLen );return MI_OK;}void IC_CMT ( u8 * UID, u8 * KEY, u8 RW, u8 * Dat )
{u8 ucArray_ID [ 4 ] = { 0 };//先后存放IC卡的类型和UID(IC卡序列号)PcdRequest ( 0x52, ucArray_ID );//寻卡PcdAnticoll ( ucArray_ID );//防冲撞PcdSelect ( UID );//选定卡PcdAuthState ( 0x60, 0x10, KEY, UID );//校验if ( RW )//读写选择，1是读，0是写PcdRead ( 0x10, Dat );elsePcdWrite ( 0x10, Dat );PcdHalt ();}void ShowID(u8 *p)	 //显示卡的卡号，以十六进制显示
{u8 num[9];u8 i;for(i=0; i<4; i++){num[i*2]=p[i]/16;num[i*2]>9?(num[i*2]+='7'):(num[i*2]+='0');num[i*2+1]=p[i]%16;num[i*2+1]>9?(num[i*2+1]+='7'):(num[i*2+1]+='0');}num[8]=0;printf("ID>>>%s\r\n", num);
}