#include "lpcreg.h"
#include "main.h"
#include "mfrc522.h"

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 idata Read_Data[16]={0x00};
unsigned char g_ucTempbuf[20];                        

//----------------------------------------------------------
//是否被初始化
//1表示 是,0表示否
//sbit isInit=0; 
//unsigned char orderCode=0;
//-----------------------------------------------------------

//---
//蜂鸣器
sbit beep=P0^2;
//---

#define LOCK 0;
#define OPEN 1;
sbit DOOR=P0^0;
//

//延迟
 void delays(void)   
{
   unsigned char m,n;
	 for(m=0;m<200;m++)
	  for(n=0;n<258;n++)	   
           ;
 }
//错误指示灯
void flash_ERR(){
	LED_ERR=1;
	delays();
	LED_ERR=0;
}

//初始化RFID-RC522
void InitRc522(void)
{
  PcdReset();
  PcdAntennaOff();  
  PcdAntennaOn();
  M500PcdConfigISOType('A');
}


//初始化
void UsartConfiguration()
{
	SCON=0X50;			//设置为工作方式1
	TMOD=0X20;			//设置计数器工作方式2
	PCON=0X80;			//波特率加倍
	TH1=0XF3;		    //计数器初始值设置，注意波特率是4800的
	TL1=0XF3;
	ES=1;						//打开接收中断
	EA=1;						//打开总中断
	TR1=1;					    //打开计数器
}

void Send(unsigned char dat)
{
   SBUF=dat;
   while(TI==0) 
   ;
   TI=0;
}

void delay(unsigned int i)
{
    char j;
    for(i; i > 0; i--)
        for(j = 150; j > 0; j--);
}

void Usart() interrupt 4
{
	unsigned char receiveData,i=0;
	receiveData=SBUF; //出去接收到的数据
	RI = 0;  //清除接收中断标志位

	if(receiveData ==0xff)	//上锁指令
	{
		DOOR=LOCK;
	}
	if(receiveData ==0xf0)	//开锁指令
	{
		DOOR=OPEN;
		while(i<240)
		{		
			beep=1;
			delay(25);
			beep=0;
			i++;
	 	}
	}
}

void Delay10ms(unsigned int c)   //误差 0us
{
    unsigned char a, b;

	//--c已经在传递过来的时候已经赋值了，所以在for语句第一句就不用赋值了--//
    for (;c>0;c--)
	{
		for (b=38;b>0;b--)
		{
			for (a=130;a>0;a--);
		}
	}
}

void main( )
{    
     unsigned char status;
	 unsigned char c=0;
     InitializeSystem( ); //初始化
     while ( 1 )
     {   
	 	 //InitializeSystem( ); //初始化
         status = PcdRequest(PICC_REQALL, g_ucTempbuf);//寻卡
		 
         if (status != MI_OK)
         {    
			  continue;
         }
         status = PcdAnticoll(g_ucTempbuf); //防冲撞----返回  卡片序列号,4字节
         if (status != MI_OK)
         {   
		 	continue;    
		 }
		 	//向串口发送卡片序列号
			for(c=0;c<4;c++)
    		{
				LED_GREEN=0;
      			Send(g_ucTempbuf[c]);
				LED_GREEN=1;				
    		}
			 PcdHalt();
			 Delay10ms(300);
		 ///////////////////////////////////////////////////////////////////////
		 ///																 ///
		 ///						以下的代码不能删						 ///
		 ///						删了就无法正常编译						 ///
		 ///////////////////////////////////////////////////////////////////////
         status = PcdSelect(g_ucTempbuf);
         if (status != MI_OK)
         {    
		 	continue;    
		 }
         status = PcdAuthState(PICC_AUTHENT1A, 1, DefaultKey, g_ucTempbuf);
         if (status != MI_OK)
         {    
		 	continue;    
		 }
         
         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;			
		 }
		 LED_GREEN=1;
		 
    }
}


/////////////////////////////////////////////////////////////////////
//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;
	DOOR=LOCK;
	InitRc522();
	UsartConfiguration();
}