rf500fun.c

一个具体的项目程序

#include  "my_head.h"
#include  "RFIC.h"
/*************************************/
#define   RF_RST     P2_5
#define   RF_CS      P3_2       //INT0
#define   RF_SCLK    P3_4
#define   RF_SDAT    P3_5
/*************************************/
#define   RF_OPEN()	 IE0=0;EX0=1;
#define	  RF_CLOSE() EX0=0;

BYTE   idata  rf_buffer[26];
bit    newdata  = 0;

void  Rf_Int0(void) interrupt 0 using 1  //rf_rcv(rf_buffer);
{
   BYTE  Rf_count;
   BYTE  ii,jj,ch;
   RF_SCLK = 0;
   RF_SDAT = 1;
   for(ii=10;ii--;);//delay;
   Rf_count= 0;
   while(!RF_CS)
   {
    for(ii=0;ii<8;ii++)
      {
	   RF_SCLK = 1;ch <<=1;
	   ch |= RF_SDAT;for(jj=2;jj--;);//delay;
	   RF_SCLK = 0;for(jj=2;jj--;);//delay;
	  }
    rf_buffer[Rf_count]= ch;
	if(++Rf_count==26)break;
   }
   RF_SDAT = 0;

   newdata = 1;
}


void  Rf_Init(void)
{
  EA  =  0;

  IP  &= ~0X01;     //X0优先级0
  //IPH &= ~0X01;
  IT0   = 1;        //INT1 is falling edg trig

  RF_CLOSE();
  EA  =  1;

  RF_CS   = 1;
  RF_SCLK = 0;
  RF_SDAT = 0;

  RF_RST = 0; delay_ms(45);
  RF_RST = 1; delay_ms(45);
}


BYTE  rf_send(BYTE *buf,BYTE count)
{
    BYTE  ii,jj,ch;

    RF_CLOSE();

	RF_SDAT  = 1;
	RF_SCLK  = 0;

    Set_Timer20ms(3);
    while(RF_SDAT)if(!Get_Timer20ms())return(RF_ERR);

	RF_CS  = 0;

    Set_Timer20ms(3);
    while(!RF_SDAT)if(!Get_Timer20ms())return(RF_ERR);
	for(ii=0;ii<count;ii++)
    {
	 ch=buf[ii];
	 for(jj=0;jj<8;jj++)
	  {
	   RF_SDAT = (bit)(ch&0x80);do_nop(1);
	   RF_SCLK = 1;do_nop(3);
	   RF_SCLK = 0;ch<<=1;do_nop(1);
	  }
	}

	RF_CS    = 1;
	RF_SDAT  = 0;
	//TR1    = 0;
    return(RF_OK);
}


BYTE rf500cmd(BYTE length)
{
	BYTE i,BCC_sum,rf_wdg=10;

	rf_buffer[length]=rf_buffer[0];
	for(i=1;i<length;i++)
	{
	  rf_buffer[length]^=rf_buffer[i];
	}
	rf_buffer[length]=~rf_buffer[length];
	
	if(rf_send(rf_buffer,length+1)!=RF_OK)
	{
	   SendStr("test1\n",7);//for test!
	   return RF_ERR;
	}

	RF_OPEN();
	while(!newdata && rf_wdg)
	{
      if(!Get_Timer20ms())
        {
		  Set_Timer20ms(3);
		  rf_wdg--;
		}
	}
	RF_CLOSE();
	
	if(newdata==0)
	{
	   //SendStr("test2\n",7);//for test!
	   return RF_ERR;
	}
	newdata=0;
	
	BCC_sum= rf_buffer[0];
	rf_wdg = rf_buffer[LENGTH]+3;
	for(i=1;i<rf_wdg;i++)
	{
		BCC_sum^=rf_buffer[i];
	}
	if(BCC_sum==~rf_buffer[rf_wdg])
	{
     	//SendStr("test3\n",7);//for test!
     	return RF_OK;
    }

    //SendStr(rf_buffer,Rf_count);//for test!
   	//SendStr("test4\n",7);//for test!
	return MI_CRCERR;
}


BYTE mifs_request(BYTE _Mode,BYTE idata *_TagType)
{
	rf_buffer[SEQNR]=0;
	rf_buffer[COMMAND]=0x41;
	rf_buffer[LENGTH]=0x01;
	rf_buffer[MODE]=_Mode;
	
	if(rf500cmd(4)!=RF_OK)return RF_ERR;
	
	if(rf_buffer[STATUS]==MI_OK)
	{
	  _TagType[0]=rf_buffer[TAGTYPE];
	  _TagType[1]=rf_buffer[TAGTYPE+1];
	}
	return rf_buffer[STATUS];
}


BYTE mifs_anticoll(BYTE _Bcnt,BYTE idata *_SNR)
{
	rf_buffer[SEQNR]=0;
	rf_buffer[COMMAND]=0x42;
	rf_buffer[LENGTH]=0x01;
	rf_buffer[MODE]=_Bcnt;
	
	if(rf500cmd(4)!=RF_OK)return RF_ERR;

	if(rf_buffer[STATUS]==MI_OK)
	{
		memcpy(_SNR,&rf_buffer[SERNR],4);
	}
	return rf_buffer[STATUS];
}


BYTE mifs_select(BYTE idata *_SNR,BYTE idata *_Size)
{
	rf_buffer[SEQNR]=0;
	rf_buffer[COMMAND]=0x43;
	rf_buffer[LENGTH]=0x04;
	memcpy(&rf_buffer[SERNR],_SNR,4);
		
	if(rf500cmd(7)!=RF_OK)return RF_ERR;
		
	if(rf_buffer[STATUS]==MI_OK)
	{
		*_Size=rf_buffer[SIZE];
	}
	return rf_buffer[STATUS];
}


BYTE mifs_authentication(BYTE _Mode,BYTE _SecNr)
{
	rf_buffer[SEQNR]=0;
	rf_buffer[COMMAND]=0x44;
	rf_buffer[LENGTH]=0x02;
	rf_buffer[MODE]=_Mode;
	rf_buffer[SECNR]=_SecNr;
	
	if(rf500cmd(5)!=RF_OK)return RF_ERR;
	
	return rf_buffer[STATUS];	
}

/*
BYTE mifs_authentication2(BYTE _Mode,BYTE _SecNr,BYTE _KeyNr)
{
	rf_buffer[SEQNR]=0;
	rf_buffer[COMMAND]=0x72;
	rf_buffer[LENGTH]=0x03;
	rf_buffer[MODE]=_Mode;
	rf_buffer[SECNR]=_SecNr;
	rf_buffer[DATA+2]=_KeyNr;
	
	if(rf500cmd(6)!=RF_OK)return RF_ERR;
	
	return rf_buffer[STATUS];	
}
*/


BYTE mifs_authKey(BYTE _Mode,BYTE _SecNr,BYTE *_Key)
{
	rf_buffer[SEQNR]=0;
	rf_buffer[COMMAND]=0x73;
	rf_buffer[LENGTH]=0x08;
	rf_buffer[DATA]=_Mode;
	rf_buffer[DATA+1]=_SecNr;
	memcpy(&rf_buffer[DATA+2],_Key,6);
		
	if(rf500cmd(11)!=RF_OK)return RF_ERR;
	
	return rf_buffer[STATUS];
}

BYTE mifs_halt(void)
{
	rf_buffer[SEQNR]=0;
	rf_buffer[COMMAND]=0x45;
	rf_buffer[LENGTH]=0x00;
	
	if(rf500cmd(3)!=RF_OK)return RF_ERR;
	
	return rf_buffer[STATUS];
}


BYTE mifs_read(BYTE _Adr,BYTE idata *_Data)
{
	rf_buffer[SEQNR]=0;
	rf_buffer[COMMAND]=0x46;
	rf_buffer[LENGTH]=0x01;
	rf_buffer[ADR]=_Adr;
		
	if(rf500cmd(4)!=RF_OK)return RF_ERR;
		
	if(rf_buffer[STATUS]==MI_OK)
	{
		memcpy(_Data,&rf_buffer[DATABYTES-1],16);
	}
	return rf_buffer[STATUS];		
}


BYTE mifs_write(BYTE _Adr,BYTE idata *_Data)
{
	rf_buffer[SEQNR]=0;
	rf_buffer[COMMAND]=0x47;
	rf_buffer[LENGTH]=17;
	rf_buffer[ADR]=_Adr;
	memcpy(&rf_buffer[DATABYTES],_Data,16);
		
	if(rf500cmd(20)!=RF_OK)return RF_ERR;
	
	return rf_buffer[STATUS];		
}

/*
BYTE mifs_increment(BYTE _Adr,long idata *_Value)
{
    BYTE *temp=(BYTE *)_Value;
	rf_buffer[SEQNR]=0;
	rf_buffer[COMMAND]=0x48;
	rf_buffer[LENGTH]=5;
	rf_buffer[ADR]=_Adr;
	rf_buffer[VALUE]=*(temp+3);
	rf_buffer[VALUE+1]=*(temp+2);
	rf_buffer[VALUE+2]=*(temp+1);
	rf_buffer[VALUE+3]=*temp;
			
	if(rf500cmd(8)!=RF_OK)return RF_ERR;
	
	return rf_buffer[STATUS];
}


BYTE mifs_decrement(BYTE _Adr,long idata *_Value)
{
	BYTE *temp=(BYTE *)_Value;
	rf_buffer[SEQNR]=0;
	rf_buffer[COMMAND]=0x49;
	rf_buffer[LENGTH]=5;
	rf_buffer[ADR]=_Adr;
	rf_buffer[VALUE]=*(temp+3);
	rf_buffer[VALUE+1]=*(temp+2);
	rf_buffer[VALUE+2]=*(temp+1);
	rf_buffer[VALUE+3]=*temp;
			
	if(rf500cmd(8)!=RF_OK)return RF_ERR;
	
	return rf_buffer[STATUS];
}


BYTE mifs_restore(BYTE _Adr)
{
	rf_buffer[SEQNR]=0;
	rf_buffer[COMMAND]=0x4A;
	rf_buffer[LENGTH]=1;
	rf_buffer[ADR]=_Adr;
	
	if(rf500cmd(4)!=RF_OK)return RF_ERR;
	
	return rf_buffer[STATUS];	
}


BYTE mifs_transfer(BYTE _Adr)
{
	rf_buffer[SEQNR]=0;
	rf_buffer[COMMAND]=0x4B;
	rf_buffer[LENGTH]=1;
	rf_buffer[ADR]=_Adr;
	
	if(rf500cmd(4)!=RF_OK)return RF_ERR;
	
	return rf_buffer[STATUS];
}
*/

BYTE mifs_load_key(BYTE _Mode,BYTE _SecNr,BYTE *_Nkey)
{
	rf_buffer[SEQNR]=0;
	rf_buffer[COMMAND]=0x4C;
	rf_buffer[LENGTH]=0x08;
	rf_buffer[MODE]=_Mode;
	rf_buffer[SECNR]=_SecNr;
	memcpy(&rf_buffer[NKEY],_Nkey,6);
	
	if(rf500cmd(11)!=RF_OK)return RF_ERR;
	
	return rf_buffer[STATUS];
}

BYTE mifs_reset(BYTE _Msec)
{
	rf_buffer[SEQNR]=0;
	rf_buffer[COMMAND]=0x4E;
	rf_buffer[LENGTH]=1;
	rf_buffer[TIME]=_Msec;
	
	if(rf500cmd(4)!=RF_OK)return RF_ERR;
	
	return rf_buffer[STATUS];
}

/*
BYTE mifs_get_info(BYTE idata *_Info)
{
	rf_buffer[SEQNR]=0;
	rf_buffer[COMMAND]=0x4F;
	rf_buffer[LENGTH]=0;
	
	if(rf500cmd(3)!=RF_OK)return RF_ERR;
		
	if(rf_buffer[STATUS]==MI_OK)
	{
		memcpy(_Info,&rf_buffer[INFO],rf_buffer[LENGTH]);
	}
	return rf_buffer[STATUS];	
}

BYTE mifs_close(void)
{
	rf_buffer[SEQNR]=0;
	rf_buffer[COMMAND]=0x3F;
	rf_buffer[LENGTH]=0;
	
	if(rf500cmd(3)!=RF_OK)return RF_ERR;
	
	return rf_buffer[STATUS];
}
*/

BYTE mifs_config(void)
{
	rf_buffer[SEQNR]=0;
	rf_buffer[COMMAND]=0x52;
	rf_buffer[LENGTH]=0;
	
	if(rf500cmd(3)!=RF_OK)return RF_ERR;
	
	return rf_buffer[STATUS];
}


/*
BYTE mifs_check_write(BYTE idata *_SNR,BYTE _Authmode,BYTE _Adr,BYTE idata *_Data)
{
	rf_buffer[0]=0;
	rf_buffer[COMMAND]=0x53;
	rf_buffer[LENGTH]=22;
	memcpy(&rf_buffer[SERNR],_SNR,4);
	rf_buffer[AUTHMODE]=_Authmode;
	rf_buffer[ADRCHKWR]=_Adr;
	memcpy(&rf_buffer[DATACHKWR],_Data,16);
	
	if(rf500cmd(25)!=RF_OK)return RF_ERR;
	
	return rf_buffer[STATUS];
}


BYTE mifs_set_control_bit()
{
	rf_buffer[0]=0;
	rf_buffer[COMMAND]=0x50;
	rf_buffer[LENGTH]=0;
			
	if(rf500cmd(3)!=RF_OK)return RF_ERR;
	
	return rf_buffer[STATUS];
}

BYTE mifs_clr_control_bit()
{
	rf_buffer[0]=0;
	rf_buffer[COMMAND]=0x51;
	rf_buffer[LENGTH]=0;
			
	if(rf500cmd(3)!=RF_OK)return RF_ERR;
	
	return rf_buffer[STATUS];
}

BYTE mifs_buzzer(BYTE _Frquence,BYTE _10ms)
{
	rf_buffer[0]=0;
	rf_buffer[COMMAND]=0x60;
	rf_buffer[LENGTH]=2;
	rf_buffer[3]=_Frquence;
	rf_buffer[4]=_10ms;
		
	if(rf500cmd(5)!=RF_OK)return RF_ERR;
	
	return rf_buffer[STATUS];
}

BYTE mifs_read_E2(BYTE _Adr,BYTE _Length,BYTE idata *_Data)
{
	rf_buffer[0]=0;
	rf_buffer[COMMAND]=0x61;
	rf_buffer[LENGTH]=2;
	rf_buffer[ADR]=_Adr;
	rf_buffer[4]=_Length;
		
	if(rf500cmd(5)!=RF_OK)return RF_ERR;
		
	if(rf_buffer[STATUS]==MI_OK)
	{
		memcpy(_Data,&rf_buffer[INFO],_Length);
	}
	return rf_buffer[STATUS];
}

BYTE mifs_write_E2(BYTE _Adr,BYTE _Length,BYTE idata *_Data)
{
	rf_buffer[0]=0;
	rf_buffer[COMMAND]=0x62;
	rf_buffer[LENGTH]=_Length+2;
	rf_buffer[ADR]=_Adr;
	rf_buffer[4]=_Length;
	memcpy(&rf_buffer[5],_Data,_Length);
		
	if(rf500cmd(_Length+5)!=RF_OK)return RF_ERR;
		
	return rf_buffer[STATUS];
}


BYTE mifs_value(BYTE _Mode,BYTE _Adr,long *_Value,BYTE _Trans_Adr)
{
	BYTE *temp=(BYTE *)_Value;

	rf_buffer[SEQNR]=0;
	rf_buffer[COMMAND]=0x70;
	rf_buffer[LENGTH]=7;
	rf_buffer[DATA]  =_Mode;
	rf_buffer[DATA+1]=_Adr;
	rf_buffer[DATA+2]=*(temp+3);
	rf_buffer[DATA+3]=*(temp+2);
	rf_buffer[DATA+4]=*(temp+1);
	rf_buffer[DATA+5]=*temp;
	rf_buffer[DATA+6]=_Trans_Adr;
	
	if(rf500cmd(10)!=RF_OK)return RF_ERR;
	
	return rf_buffer[STATUS];
}
*/