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STM32F103ZET--RFID-RC522使用例程(战舰版)

 

前言
  • 单片机:STM32F103ZET6
  • 模块:RFID-RC522
  • 开发板:正点原子战舰V3
  • 适应环境:裸机程序 / uCosIII
  • 优点:亲测可用

每每有陌生人加我就是问我要这个的工程,心累,文末有工程下载链接。希望再有人加我QQ是跟我聊技术,而不是:“大神,能发个工程给我吗?”

main.c

#include "rc522.h"

int main()
{
	...
	RC522_Init();	    //初始化射频卡模块
	...
	while(1)
	{
		RC522_Handel();
	}
	return 0;
}

RC522.c

#include "sys.h"
#include "rc522.h"
#include "delay.h"
#include "usart.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]={196,58,104,217};
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)//防衝撞成功
    {
        status=MI_ERR;		
        ShowID(0,200,SN,BLUE,WHITE); //在液晶屏上显示卡的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);

    }
    else
    {
        
       // TODO 
    }
    if(status==MI_OK)//選卡成功
    {

        status=MI_ERR;
        status =PcdAuthState(0x60,0x09,KEY,SN);
     }
    if(status==MI_OK)//驗證成功
    {
        status=MI_ERR;
        status=PcdRead(s,RFID);
    }

    if(status==MI_OK)//讀卡成功
    {
        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(	RCC_APB2Periph_GPIOA | RCC_APB2Periph_GPIOB, ENABLE );//PORTB时钟使能 
	
	// CS
    GPIO_InitStructure.GPIO_Pin = GPIO_Pin_4;	 
    GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_PP; 		 //推挽输出
    GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;		 //IO口速度为50MHz
    GPIO_Init(GPIOA, &GPIO_InitStructure);					 //根据设定参数初始化PF0、PF1
    
    // SCK
    GPIO_InitStructure.GPIO_Pin = GPIO_Pin_5;	 
    GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_PP; 		 //推挽输出
    GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;		 //IO口速度为50MHz
    GPIO_Init(GPIOA, &GPIO_InitStructure);
    
    // MISO
    GPIO_InitStructure.GPIO_Pin = GPIO_Pin_6;	 
    GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN_FLOATING; 		 //推挽输出
    GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;		 //IO口速度为50MHz
    GPIO_Init(GPIOA, &GPIO_InitStructure);
    
    // MOSI
    GPIO_InitStructure.GPIO_Pin = GPIO_Pin_7;	 
    GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_PP; 		 //推挽输出
    GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;		 //IO口速度为50MHz
    GPIO_Init(GPIOA, &GPIO_InitStructure);
    
    // RST
    GPIO_InitStructure.GPIO_Pin = GPIO_Pin_0;	 
    GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_PP; 		 //推挽输出
    GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;		 //IO口速度为50MHz
    GPIO_Init(GPIOB, &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 ();
			else 
					RC522_MOSI_0 ();

//			delay_us ( 3 );
			RC522_DELAY();
		
			RC522_SCK_0 ();

//			delay_us ( 1 );
//			delay_us ( 3 );
			RC522_DELAY();
			 
			RC522_SCK_1();

//			delay_us ( 3 );
			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 ();

//			delay_us ( 3 );
		    RC522_DELAY();
		
			if ( RC522_MISO_GET() == 1)
					SPI_Data |= 0x01;

//			delay_us ( 2 );
//			delay_us ( 3 );
			RC522_DELAY();

			RC522_SCK_1 ();
	
//			delay_us ( 3 );
			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0x6363

    WriteRawRC ( 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 );//3F
		
		WriteRawRC ( RxSelReg, 0x86 );//84
		
		WriteRawRC( RFCfgReg, 0x7F );   //4F
		
		WriteRawRC( 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IdleIEn
          ucWaitFor = 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 TimerIEn
          ucWaitFor = 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FIFOdata
			
    WriteRawRC ( 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25ms
		
    do 														//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 );   
			}		
        }
			else
				cStatus = MI_ERR;   
//			printf(ErrorReg);
    }
   
   SetBitMask ( ControlReg, 0x80 );           // stop timer now
   WriteRawRC ( 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 ];
    }
     
    else
     cStatus = 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UID
            ucSnr_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;  
    else
      ucN = 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 ];   
    }
		
    else
      cStatus = 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 );

    else 
        PcdWrite ( 0x10, Dat );
     
    PcdHalt ();	 
	 
}

void ShowID(u16 x,u16 y, u8 *p, u16 charColor, u16 bkColor)	 //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;
    
    LCD_ShowString(6,110,110,16,16,num); */
    printf("ID>>>%s\r\n", num);

}

RC522.h

#ifndef __RC522_H
#define __RC522_H	
#include "sys.h" 
#include "stm32f10x.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
#define MAXRLEN  18

/
//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)

#define	SHAQU1	0X01
#define	KUAI4	0X04
#define	KUAI7	0X07
#define	REGCARD	0xa1
#define	CONSUME	0xa2
#define READCARD	0xa3
#define ADDMONEY	0xa4

//
//#define  spi_cs 1;
//sbit  spi_ck=P0^6;
//sbit  spi_mosi=P0^7;
//sbit  spi_miso=P4^1;
//sbit  spi_rst=P2^7;
#define SPIReadByte()	SPIWriteByte(0)
u8 SPIWriteByte(u8 byte);
void SPI1_Init(void);

#define SET_SPI_CS  (GPIOF->BSRR=0X01)
#define CLR_SPI_CS  (GPIOF->BRR=0X01)



#define SET_RC522RST  GPIOF->BSRR=0X02
#define CLR_RC522RST  GPIOF->BRR=0X02


/***********************RC522 函数宏定义**********************/
#define          RC522_CS_Enable()         GPIO_ResetBits ( GPIOA, GPIO_Pin_4 )
#define          RC522_CS_Disable()        GPIO_SetBits ( GPIOA, GPIO_Pin_4 )

#define          RC522_Reset_Enable()      GPIO_ResetBits( GPIOB, GPIO_Pin_0 )
#define          RC522_Reset_Disable()     GPIO_SetBits ( GPIOB, GPIO_Pin_0 )

#define          RC522_SCK_0()             GPIO_ResetBits( GPIOA, GPIO_Pin_5 )
#define          RC522_SCK_1()             GPIO_SetBits ( GPIOA, GPIO_Pin_5 )

#define          RC522_MOSI_0()            GPIO_ResetBits( GPIOA, GPIO_Pin_7 )
#define          RC522_MOSI_1()            GPIO_SetBits ( GPIOA, GPIO_Pin_7 )

#define          RC522_MISO_GET()          GPIO_ReadInputDataBit ( GPIOA, GPIO_Pin_6 )

void             RC522_Handel               (void);
void             RC522_Init                 ( void );                       //初始化
void             PcdReset                   ( void );                       //复位
void             M500PcdConfigISOType       ( u8 type );                    //工作方式
char             PcdRequest                 ( u8 req_code, u8 * pTagType ); //寻卡
char             PcdAnticoll                ( u8 * pSnr);                   //读卡号

char             PcdSelect                  ( u8 * pSnr );
char             PcdAuthState               ( u8 ucAuth_mode, u8 ucAddr, u8 * pKey, u8 * pSnr );
char             PcdWrite                   ( u8 ucAddr, u8 * pData );
char             PcdRead                    ( u8 ucAddr, u8 * pData );
void ShowID(u16 x,u16 y, u8 *p, u16 charColor, u16 bkColor);	 //显示卡的卡号,以十六进制显示


#endif

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原文链接:STM32F103ZET--RFID-RC522使用例程(战舰版),转载请注明来源!

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