epc.c

用C8051F126实现的RFIDEPC CLASS1B协议程序

		pack_and_send();
		break;
	case 0x0e:	//选择天线
	//	i=detect_antenna();
		temp=combuf[3];
		if(temp==0)
			sel_txian0=1;		//??? 选择天线1
		else
			sel_txian0=0;		
		sel_txian1 = (~sel_txian0);   //选择天线2
			
		sendbuf[0]=0xf0;
		sendbuf[1]=0x02;
		sendbuf[2]=0x0e;
		pack_and_send();
		break;
	case 0x12:		//设定参考电压	供现场测试使用
		temp=combuf[3];
		flash_addr=1700+temp*5;
		if(flash_addr>3000) flash_addr=3000;
		eeprom_buf[0]=flash_addr%256;
		eeprom_buf[1]=flash_addr/256;
		iic_block_write(cur_Ref_Volt,2);
		SFRPAGE = 0x01;
		DAC1L=flash_addr%256;
		DAC1H=flash_addr/256;
		SFRPAGE = 0x00;
		sendflag=1;
		sendcount=1;
		receiveflag=0;
		sendbuf[0]=0xf0;
		sendbuf[1]=0x03;
		sendbuf[2]=0x12;
		sendbuf[3]=combuf[3];
		sendbuf[4]=0;
		pack_and_send();
		break;
	case 0x13:	//返回参考电压值
		sendflag=1;
		sendcount=1;
		iic_eeprom_read_adress(cur_Ref_Volt,2);
		receiveflag=0;
		sendbuf[0]=0xf0;
		sendbuf[1]=0x03;
		sendbuf[2]=0x13;
		i=common_buf[0];
		flash_addr=common_buf[1];
		flash_addr=flash_addr<<8;
		flash_addr+=i;
		flash_addr=(flash_addr-1698)/5;
		sendbuf[3]=flash_addr;
		sendbuf[4]=0;
		pack_and_send();
		break;

	case 0x20:		//设定rfs1820配置参数
		temp=0;
		for(i=0;i<8;i++)
		{
			eeprom_buf[i]=combuf[3+i];
			temp+=eeprom_buf[i];
		}
		eeprom_buf[8]=(~temp)+1;
		iic_block_write(config_1820,9);
		
		delay(100);    

		iic_eeprom_read_adress(config_1820,9);
		
		temp=0;
		is_ok=true;
		for(i=0;i<8;i++)
		{
			if(common_buf[i] != combuf[3+i])
			{
				is_ok=false;
				break;
			}
			else
				temp += common_buf[i];
		}
		if(is_ok==true)
		{
			temp = (~temp) + 1;
			if(temp != common_buf[8])
				is_ok=false;
		}

		if(is_ok==true)
		{
			sendbuf[0]=0xf0;
			sendbuf[1]=0x02;
		}
		else
		{
			sendbuf[0]=0xf4;
			sendbuf[1]=0x03;
			sendbuf[3]=error_eeprom;
		}
		sendbuf[2]=0x20;
		pack_and_send();
		break;
	case 0x21:		//读rfs1820配置参数
		read_config();
		for(i=0;i<8;i++)
			sendbuf[i+3]=config_buf[i];
		sendbuf[0]=0xf0;
		sendbuf[1]=0x0a;
		sendbuf[2]=0x21;
		pack_and_send();
		break;

	case 0x40:	//写厂商授权码
		temp=0;
		for(i=0;i<4;i++)
		{
			eeprom_buf[i]=combuf[3+i];
			temp +=eeprom_buf[i];
		}
		eeprom_buf[4]=(~temp)+1;
		iic_block_write(mac_code,5);

		delay(100);

		iic_eeprom_read_adress(mac_code,5);

		temp=0;
		is_ok=true;
		for(i=0;i<4;i++)
		{
			if(common_buf[i] != combuf[3+i])
			{
				is_ok=false;
				break;
			}
			else
				temp += common_buf[i];
		}
		if(is_ok==true)
		{
			temp = (~temp)+1;
			if(temp != common_buf[4])
				is_ok=false;
		}

		if(is_ok==true)
		{
			sendbuf[0]=0xf0;
			sendbuf[1]=0x02;
		}
		else
		{
			sendbuf[0]=0xf4;
			sendbuf[1]=0x03;
			sendbuf[3]=error_eeprom;
		}
		sendbuf[2]=0x40;
	    pack_and_send();
		break;
	case 0x41:	//读厂商授权码
		iic_eeprom_read_adress(mac_code,5);

		temp=0;
		for(i=0;i<4;i++)
			temp += common_buf[i];
		temp = (~temp) + 1;

		if(temp == common_buf[4])
		{
			sendbuf[0]=0xf0;
			sendbuf[1]=0x06;
			for(i=0;i<4;i++)
				sendbuf[i+3]=common_buf[i];
		}
		else
		{
			sendbuf[0]=0xf4;
			sendbuf[1]=0x03;
			sendbuf[3]=error_mac_code;
		}
		sendbuf[2]=0x41;
		pack_and_send();
		break;
	case 0x42:	//写用户授权码
		temp=0;
		for(i=0;i<8;i++)
		{
			eeprom_buf[i]=combuf[3+i];
			temp +=eeprom_buf[i];
		}
		eeprom_buf[8]=(~temp)+1;
		iic_block_write(user_code,9);

		delay(100);

		iic_eeprom_read_adress(user_code,9);

		temp=0;
		is_ok=true;
		for(i=0;i<8;i++)
		{
			if(common_buf[i] != combuf[3+i])
			{
				is_ok=false;
				break;
			}
			else
				temp += common_buf[i];
		}
		if(is_ok==true)
		{
			temp = (~temp)+1;
			if(temp != common_buf[8])
				is_ok=false;
		}

		if(is_ok==true)
		{
			sendbuf[0]=0xf0;
			sendbuf[1]=0x02;
		}
		else
		{
			sendbuf[0]=0xf4;
			sendbuf[1]=0x03;
			sendbuf[3]=error_eeprom;
		}
		sendbuf[2]=0x42;
		pack_and_send();
		break;
	case 0x43:	//读用户授权码
		iic_eeprom_read_adress(user_code,9);

		temp=0;
		for(i=0;i<8;i++)
			temp += common_buf[i];
		temp = (~temp) + 1;

		if(temp == common_buf[8])
		{
			sendbuf[0]=0xf0;
			sendbuf[1]=0x0a;
			for(i=0;i<8;i++)
				sendbuf[i+3]=common_buf[i];
		}
		else
		{
			sendbuf[0]=0xf4;
			sendbuf[1]=0x03;
			sendbuf[3]=error_uac_code;
		}
		sendbuf[2]=0x43;
		pack_and_send();
		break;
	case 0x44:	//授权标签
		temp=write_authorization();
		if(temp==error_ok)
		{
			sendbuf[0]=0xf0;
			sendbuf[1]=0x02;
		}
		else
		{
			sendbuf[0]=0xf4;
			sendbuf[1]=0x03;
			sendbuf[3]=temp;
		}
		sendbuf[2]=0x44;
		pack_and_send();
		break;
	case 0x45:	//检验标签是否授权
		temp=check_authorization();
		if(temp==error_ok)
		{
			sendbuf[0]=0xf0;
			sendbuf[1]=0x02;
		}
		else
		{
			sendbuf[0]=0xf4;
			sendbuf[1]=0x03;
			sendbuf[3]=temp;
		}
		sendbuf[2]=0x45;
		pack_and_send();
		break;		

	case 0x80:	//开始下载FPGA数据包
		count_addr=0;
		for(i=0; i<64; i++)
		{	
			flash_erase(1, 0x8000 + i*0x200);
			delay(100);
		}
		for(i=0;i<64;i++)
		{
			flash_erase(2, 0x8000 + i*0x200);
			delay(100);
		}
		for(i=0;i<9;i++)
		{	
			flash_erase(3, 0x8000 + i*0x200);
			delay(100);
		}

		sendbuf[0]=0xf0;
		sendbuf[1]=0x02;
		sendbuf[2]=0x80;
		pack_and_send();
		break;
	case 0x81:
		for(i=0;i<64;i++)
			flashwritebuf[i] = combuf[i+3];
		
		if(count_addr<512)
		{	
			temp=1;
			flash_addr=count_addr*64+0x8000;
		}
		else if(count_addr<1024)
		{	
			temp=2;
			flash_addr=count_addr*64;
		}
		else 
		{	
			temp=3;
			flash_addr=(count_addr-512)*64;
		}
		
		flash_writenbyte(temp,flash_addr,64);
		delay(100);

		flash_readnbyte(temp, flash_addr, 64);
		delay(10);

		temp = true;
		for(i=0;i<64;i++)
		{
			if(flashwritebuf[i]!=flashreadbuf[i])
			{	
				temp=false;
				break;
			}
		}

		if(temp==true)
		{	
			count_addr++;
			sendbuf[0]=0xf0;
			sendbuf[1]=0x02;
		}
		else
		{	
			sendbuf[0]=0xf4;
			sendbuf[1]=0x03;
			sendbuf[3]=error_eeprom;
		}
		sendbuf[2]=0x81;
		pack_and_send();
		break;
	case 0x82:
		sendbuf[0]=0xf0;
		sendbuf[1]=0x02;
		sendbuf[2]=0x82;
		pack_and_send();
		break;

	case 0x83:    //开始升级MCU软件
		count_addr=0;
		for(i=0;i<52;i++)
		{	
			flash_erase(3, 0x9200 + i*0x200);
			delay(100);
		}
		//flashwritebuf[0]=combuf[3];
		//flashwritebuf[1]=combuf[4];
		//flash_writenbyte(0,0x6000,2);
		
		sendbuf[0]=0xf0;
		sendbuf[1]=0x02;
		sendbuf[2]=0x83;
		pack_and_send();
		break;
	case 0x84:
		for(i=0;i<64;i++)
			flashwritebuf[i]=combuf[i+3];
		
		if(count_addr<416)
		{	
			flash_addr=count_addr*64+0x9200;
			flash_writenbyte(3,flash_addr,64);
			delay(100);

			flash_readnbyte(3,flash_addr,64);
			delay(10);

			temp=true;
			for(i=0;i<64;i++)
			{
				if(flashwritebuf[i] != flashreadbuf[i])
				{	
					temp=false;
					break;
				}
			}
		}
		else
			temp=false;

		if(temp==true)
		{
			count_addr++;

			sendbuf[0]=0xf0;
			sendbuf[1]=0x02;
		}
		else
		{	
			sendbuf[0]=0xf4;
			sendbuf[1]=0x03;
			sendbuf[3]=error_eeprom;
		}
		sendbuf[2]=0x84;
		pack_and_send();
		break;

	case 0x85:	//收到下载MCU程序结束包
		flashwritebuf[0]=0xaa;
		flashwritebuf[1]=0x55;
		flash_writenbyte(0,0x6002,2);

		sendbuf[0]=0xf0;
		sendbuf[1]=0x02;
		sendbuf[2]=0x85;
		pack_and_send();

		down_ok=1;
		break;

	case 0xf0:					//写一个数据字
		if(antenna_is_ok())
		{
			amplifier_on();		//开功放

			for(i=0;i<4;i++) 
				tagwritebuf[i]=combuf[4+i];
			temp=write_data_process(combuf[3]);

			amplifier_off();
		}
		else
			temp=error_no_antenna;

		if(temp==error_ok)
		{
			sendbuf[0]=0xf0;
			sendbuf[1]=0x02;
		}
		else
		{
			ok_300ms=1;	//跳频

			sendbuf[0]=0xf4;
			sendbuf[1]=0x03;
			sendbuf[3]=temp;
		}

		sendbuf[2]=0xf0;
		pack_and_send();
		break;
	case 0xf1:					//读一个数据字
		if(antenna_is_ok())
		{
			amplifier_on();		//开功放
			data_get = 0;
			temp=read_data_process(combuf[3], 1);
			amplifier_off();
		}
		else
			temp=error_no_antenna;

		if(temp==error_ok)	
		{
			sendbuf[0]=0xf0;
			sendbuf[1]=0x06;
			for(i=0;i<4;i++)
				sendbuf[6-i]=data_code[i];
		}
		else
		{
			sendbuf[0]=0xf4;
			sendbuf[1]=0x03;
			sendbuf[3]=temp;

			ok_300ms=1;	//跳频
		}
		sendbuf[2]=0xf1;
		pack_and_send();
		break;

	case 0xf3:	//读保护
		if(antenna_is_ok())
		{
			amplifier_on();		//开功