*(pbuf + 9) = 0xF4;	*(pbuf + 10) = 0x23;	*(pbuf + 11) = 0x00;	*(pbuf + 12) = 0x00;	*(pbuf + 13) = 0x07;	*(pbuf + 14) = 0xE0;	*(pbuf + 15) = 0x00;	*(pbuf + 16) = 0x01;		if(lenght > 12) lenght = 12;	if(lenght == 0x00 && brokenBits != 0x00)	{		lenght = 1;		RXTXstate = 1;	}	command = IRQStatus;	RFID_ReadSingle(&command, 1);	RFID_RAWwrite(pbuf, lenght + 5);		/* send the request using RAW writing */	/* Write 12 bytes the first time you write to FIFO *///	irqCLR;					/* PORT2 interrupt flag clear */	irqON;	RXTXstate = RXTXstate - 12;	//RXTXstate = RXTXstate - lenght;	index = 17;	i_reg = 0x01;	command = IRQStatus;	RFID_ReadSingle(&command, 1);	while(RXTXstate > 0)	{		//myDelay(20);		//LPM0;				/* enter low power mode and exit on interrupt */		//sleep_cpu();		if(RXTXstate > 9)		{					/* the number of unsent bytes is in the RXTXstate global */			lenght = 10;	/* count variable has to be 10 : 9 bytes for FIFO and 1 address */		}		else if(RXTXstate < 1)		{			break;			/* return from interrupt if all bytes have been sent to FIFO */		}		else		{			lenght = RXTXstate + 1; /* all data has been sent out */		}						/* if */		buf[index - 1] = FIFO;	/* writes 9 or less bytes to FIFO for transmitting */		RFID_WriteCont(&buf[index - 1], lenght);		RXTXstate = RXTXstate - 3;//9	/* write 9 bytes to FIFO */		index = index + 9;	}				/* while */	RXTXstate = 1;	/* the response will be stored in buf[1] upwards */	/* wait for end of transmit */	while(i_reg == 0x01)	{		myDelay(30);/*		CounterSet();		countValue = 0xF000;	// 60ms for TIMEOUT 		startCounter;			// start timer up mode 		LPM0;*/		sleep_cpu();	}	i_reg = 0x01;	myDelay(30);/*	CounterSet();	countValue = count1ms * 60; // 60ms for TIMEOUT 	startCounter;				// start timer up mode */	if	(		(((buf[5] & BIT6) == BIT6) && ((buf[6] == 0x21) || (buf[6] == 0x24) || (buf[6] == 0x27) || (buf[6] == 0x29)))	||	(buf[5] == 0x00 && ((buf[6] & 0xF0) == 0x20 || (buf[6] & 0xF0) == 0x30 || (buf[6] & 0xF0) == 0x40))	)	{		delay_ms(20);		command = Reset;		RFID_DirectCommand(&command);		command = TransmitNextSlot;		RFID_DirectCommand(&command);	}				/* if */	while(i_reg == 0x01)	{	}				/* wait for RX complete */	if(!POLLING)	{		switch(noCRC)		{		case 0:			if(i_reg == 0xFF)			{		// recieved response //				kputchar('[');				for(j = 1; j < RXTXstate; j++)				{//					Put_byte(buf[j]);				}	// for //				kputchar(']');				return(0);			}			else if(i_reg == 0x02)			{		// collision occured //				kputchar('[');//				kputchar('z');//				kputchar(']');				return(0);			}			else if(i_reg == 0x00)			{		// timer interrupt //				kputchar('[');//				kputchar(']');				return(1);			}			else				;			break;/*		case 1:			if(i_reg == 0xFF)			{		// recieved response 				kputchar('(');				for(j = 1; j < RXTXstate; j++)				{					Put_byte(buf[j]);				}	// for 				kputchar(')');				return(0);			}			else if(i_reg == 0x02)			{		// collision occured 				kputchar('(');				kputchar('z');				kputchar(')');				return(0);			}			else if(i_reg == 0x00)			{		// timer interrupt 				kputchar('(');				kputchar(')');				return(1);			}			else				;			break;*/		}			// switch 	}				// if 	irqOFF;	return(1);}					// RequestCommand void InterruptHandlerReader(unsigned char *Register){	/*~~~~~~~~~~~~~~~~*/	/*	 * char phello[20];	 * //for testing	 */	unsigned char	len,c;	/*~~~~~~~~~~~~~~~~*/	/*	 * Register = Register & 0xF7;	 * //set the parity flag to 0 ;	 * parity is not used in 15693 and Tag-It	 *///	fprintf(&uart_str,"%c",0x0D);            //    fprintf(&uart_str,"Register = %x \n",*Register);		if(*Register == 0xA0)	{					// TX active and only 3 bytes left in FIFO		i_reg = 0x00;//		fprintf(&uart_str,"%c",0x0D);            //    	fprintf(&uart_str,"FIFO done\n");	}	else 	if(*Register == BIT7)	{					/* TX complete */		i_reg = 0x00;//		fprintf(&uart_str,"%c",0x0D);            //    	fprintf(&uart_str,"TX completed\n");		*Register = Reset;			/* reset the FIFO after TX */		RFID_DirectCommand(Register);	}	else 	if((*Register & BIT1) == BIT1)	{								/* collision error */		i_reg = 0x02;				/* RX complete */				*Register = StopDecoders;	/* reset the FIFO after TX */		RFID_DirectCommand(Register);		CollPoss = CollisionPosition;		RFID_ReadSingle(&CollPoss, 1);//		fprintf(&uart_str,"%c",0x0D);            //    	fprintf(&uart_str,"Collision error = %x\n",CollPoss);		/*		 * CollPoss &= 0xF7;		 */		len = CollPoss - 0x20;		/* number of valid bytes if FIFO */		if((len & 0x0f) != 0x00) len = len + 0x10;	/* add 1 byte if broken byte recieved */		len = len >> 4;		if(len != 0x00)		{			buf[RXTXstate] = FIFO;					/* write the recieved bytes to the correct place of the													 * buffer;													 * */			RFID_ReadCont(&buf[RXTXstate], len);			RXTXstate = RXTXstate + len;		}						/* if *///		fprintf(&uart_str,"%c",0x0D);            //    	fprintf(&uart_str,"collision error  \n");		*Register = Reset;		RFID_DirectCommand(Register);		*Register = IRQStatus;	/* IRQ status register address */		RFID_ReadSingle(Register, 1);	/* function call for single address read */		irqCLR;	}	else 	if(*Register == BIT6)//0x40	{	/* RX flag means that EOF has been recieved */		/* and the number of unread bytes is in FIFOstatus regiter */		if(RXErrorFlag == 0x02)		{			i_reg = 0x02;			return;		}		*Register = FIFOStatus;		RFID_ReadSingle(Register, 1);					/* determine the number of bytes left in FIFO */				*Register = (0x0F &*Register) + 0x01;		for(c=0;c<=250;c++)			buf[c] = 0x00;		buf[RXTXstate] = FIFO;						/* write the recieved bytes to the correct place of the													 * buffer;													 * */		RFID_ReadCont(&buf[RXTXstate], *Register);		RXTXstate = RXTXstate +*Register;		*Register = TXLenghtByte2;					/* determine if there are broken bytes */		RFID_ReadSingle(Register, 1);					/* determine the number of bits */		if((*Register & BIT0) == BIT0)		{			*Register = (*Register >> 1) & 0x07;	/* mask the first 5 bits */			*Register = 8 -*Register;			buf[RXTXstate - 1] &= 0xFF << *Register;		}								/* if */		*Register = Reset;				/* reset the FIFO after last byte has been read out */		RFID_DirectCommand(Register);//		fprintf(&uart_str,"%c",0x0D);            //    	fprintf(&uart_str,"EOF received  \n");		i_reg = 0xFF;					/* signal to the recieve funnction that this are the last bytes */			}	else 	if(*Register == 0x60)	{									/* RX active and 9 bytes allready in FIFO */		i_reg = 0x01;				for(c=0;c<=250;c++)			buf[c] = 0x00;		buf[RXTXstate] = FIFO;		RFID_ReadCont(&buf[RXTXstate], 9);	/* read 9 bytes from FIFO */		RXTXstate = RXTXstate + 9;//		delay_ms(100);//		fprintf(&uart_str,"%c",0x0D);            //    	fprintf(&uart_str,"RX active\n");		if(irqPORT & irqPIN)		{			*Register = IRQStatus;		/* IRQ status register address */			RFID_ReadSingle(Register, 1);	/* function call for single address read */			irqCLR;			if (*Register == 0x40)			{	/* end of recieve */				*Register = FIFOStatus;				RFID_ReadSingle(Register, 1);					/* determine the number of bytes left in FIFO */				*Register = 0x0F & (*Register + 0x01);				buf[RXTXstate] = FIFO;						/* write the recieved bytes to the correct place of the															 * buffer;															 * */				RFID_ReadCont(&buf[RXTXstate], *Register);				RXTXstate = RXTXstate +*Register;				*Register = TXLenghtByte2;					/* determine if there are broken bytes */				RFID_ReadSingle(Register, 1);					/* determine the number of bits */				if((*Register & BIT0) == BIT0)				{					*Register = (*Register >> 1) & 0x07;	/* mask the first 5 bits */					*Register = 8 -*Register;					buf[RXTXstate - 1] &= 0xFF << *Register;				}						/* if *///				fprintf(&uart_str,"%c",0x0D);            //    			fprintf(&uart_str,"RX active 2\n");				i_reg = 0xFF;			/* signal to the recieve funnction that this are the last bytes */				*Register = Reset;		/* reset the FIFO after last byte has been read out */				RFID_DirectCommand(Register);//				fprintf(&uart_str,"%c",0x0D);            //    			fprintf(&uart_str,"register = %x \n",buf);			}			else if(*Register == 0x50)			{							// end of recieve and error 				i_reg = 0x02;//				fprintf(&uart_str,"%c",0x0D);            //    			fprintf(&uart_str,"End of receive error\n");			}		}		else		{			*Register = IRQStatus;			RFID_ReadSingle(Register, 2);	/* function call for single address read */			if(Register[0] == 0x00) i_reg = 0xFF;		}	}	else 	if((*Register & BIT4) == BIT4)	{						/* CRC error */		if((*Register & BIT5) == BIT5)		{			i_reg = 0x01;	/* RX active */			RXErrorFlag = 0x02;		}		else			i_reg = 0x02;	/* end of RX */	}	else 	if((*Register & BIT2) == BIT2)	{						/* byte framing error */		if((*Register & BIT5) == BIT5)		{			i_reg = 0x01;	/* RX active */			RXErrorFlag = 0x02;		}		else			i_reg = 0x02;	/* end of RX */	}	else 	if(*Register == BIT0)	{						/* No response interrupt */		i_reg = 0x00;//		fprintf(&uart_str,"%c",0x0D);            //    	fprintf(&uart_str,"No Response interrupt\n");	}	else	{						/* Interrupt register not properly set */		i_reg = 0x02;		*Register = StopDecoders;	/* reset the FIFO after TX */		RFID_DirectCommand(Register);		*Register = Reset;		RFID_DirectCommand(Register);		*Register = IRQStatus;		/* IRQ status register address */		RFID_ReadSingle(Register, 1);	/* function call for single address read *///		fprintf(&uart_str,"%c",0x0D);            //    	fprintf(&uart_str,"Interrupt error\n");	//	irqCLR;	}}	/* InterruptHandlerReader */void delay_ms(unsigned int n_ms) {    unsigned int ii1, ii0;    for(ii0=n_ms; ii0>0; ii0--) 	{        ii1 = 0x0033;                    // Delay        do (ii1--);        while (ii1 != 0);    }}// end of delay_ms	ISR(TIMER2_COMPA_vect){	unsigned char Register;		StopCounter;	Timer_Flag = 1;	Register = IRQStatus;		//IRQ status register address	irqCLR;				//PORT2 interrupt flag clear		RFID_ReadSingle(&Register, 1);	//function call for single address read								//IRQ status register has to be read	Register = Register & 0xF7;	//set the parity flag to 0//	fprintf(&uart_str,"%c",0x0D);            //    fprintf(&uart_str,"Timer Register = %x\n",Register);		if(Register == 0x00)	{      	i_reg = 0x00;	}	else		i_reg = 0x01;//	fprintf(&uart_str,"%c",0x0D);            //    fprintf(&uart_str,"IRQStatus 1 = %x\n",Register);}ISR(INT0_vect){	unsigned char Register[2];	StopCounter;					/* stop timer mode */	do	{		irqCLR;		Register[0] = IRQStatus;	/* IRQ status register address */		RFID_ReadSingle(Register, 1);	/* function call for single address read */		Last_Register[Last_Cnt] = Register[0];		Last_Cnt++;//		fprintf(&uart_str,"%c",0x0D);            //	   	fprintf(&uart_str,"Interrupt Register = %x\n",Register[0]);		/* IRQ status register has to be read */		if(*Register == 0xA0)		{	/* TX active and only 3 bytes left in FIFO *///			fprintf(&uart_str,"%c",0x0D);            //    		fprintf(&uart_str,"Interrupt FINISH\n");			goto FINISH;		}		else   			InterruptHandlerReader(&Register[0]);			}while((irqPORT & irqPIN) == irqPIN);FINISH://	sleep_cpu();	Nop = 1;}int main(){	unsigned char c=0;	unsigned char command[10];  	init();	stdout = stdin = &uart_str;	fprintf(&uart_str, "\nBefore main loop\n");/*	CountValue =  Count1ms*50;	CounterSet();		StartCounter;*/   	while(1)    	{/*	 // Timer_Flag = 0;	  if(Timer_Flag==1)	  {	  	Timer_Flag = 0;   		fprintf(&uart_str, "Loop counter = %x \n",cnt);//		StartCounter;	  }	  *///		PORTC = cnt;		for(c=0;c<=250;c++)			buf[c] = 0x00;		command[0] = Reset;		/* reset the FIFO after last byte has been read out */		RFID_DirectCommand(command);				command[0] = ChipStateControl;	 		command[1] = 0x21;		command[2] = ISOControl;				command[3] = 0x02;		RFID_WriteSingle(command, 4);		delay_ms(5);		flags = 0x06;//0x26		command[0] = 0x00;		RFID_RequestCommand(buf, 0x00, 0x00, 0);//		RFID_InventoryRequest(command, 0);			command[0] = ChipStateControl;			command[1] = 0x01;		RFID_WriteSingle(command, 2);		delay_ms(1);		command[0] = IRQStatus;//IRQStatus		RFID_ReadSingle(command, 1);			fprintf(&uart_str,"\n");		for(c=0;c<=10;c++)		{			fprintf(&uart_str,"Last Register = %02x\n",Last_Register[c]);		}		Last_Cnt = 0;				fprintf(&uart_str, "\n");		fprintf(&uart_str, "Buf = ");		for(c=0;c<=20;c++)		{		fprintf(&uart_str, "%02x ",buf[c]);				}	/*				fprintf(&uart_str, "\nAfter TX\n");		for(c=0;c<=0;c++)		{			delay_ms(100);				}*/		/*		RFID_Data[0] = TestSetting1;		RFID_Data[1] = 0x00;		RFID_WriteSingle(RFID_Data,2);		RFID_Data[0] = 0x00;		RFID_Data[1] = 0x00;		RFID_Data[0] = TestSetting1;		RFID_ReadSingle(&RFID_Data[0],1);*//*			fprintf(&uart_str,"%c",0x0D);                    fprintf(&uart_str,"buf = %x\n",buf[0]);				fprintf(&uart_str,"%c",0x0D);                    fprintf(&uart_str,"RFID i_reg = %x\n",i_reg);*//*		PORTC--;		if(PORTC<=1)		 PORTC = 0xFF;*///		PORTC = d;/*				for(c=1;c<=4000;c++)		{			_delay_ms(1);		}*/			}//while	return 0;}