📄 main.lst
字号:
742 4 bit_subscript=(k%8);
743 4 custID=(custID|(((autodection_data[array_subscript]&(1<<bit_subscript))>>bit_subscript)<<bit_number));
744 4 bit_number++;
745 4 }
746 3 for (k=(j+15);k<(j+19);k++)
747 3 {
748 4 array_subscript=(k/8);
749 4 bit_subscript=(k%8);
750 4 custID=(custID|(((autodection_data[array_subscript]&(1<<bit_subscript))>>bit_subscript)<<bit_number));
751 4 bit_number++;
752 4 }
753 3 //data
754 3 k=0;
755 3 bit_number=0;
756 3 for(l=(j+20);l<(j+59);l++)
757 3 {
758 4 if (((l-j-20)%5)!=4)
759 4 {
760 5 array_subscript=(l>>3);
761 5 bit_subscript=(l%8);
762 5 DataItem[k]=(DataItem[k]|(((autodection_data[array_subscript]&(1<<bit_subscript))>>bit_subscript)<<bi
-t_number));
763 5 bit_number++;
764 5 if (bit_number==8)
765 5 {
766 6 bit_number=0;
767 6 k++;
768 6 }
769 5 }
770 4 }
771 3 }
772 2 }
773 1
774 1
775 1
776 1 //向PC返回响应信息
777 1 check_stat=0x14;
778 1 if (flag_column_check==1)
779 1 {
780 2 check_stat=0;
781 2 flag_column_check=0;
782 2 }
783 1 tx_buff[0]=0x02;
784 1 tx_buff[1]=0x0a;
785 1 tx_buff[2]=0x86;
786 1 tx_buff[3]=check_stat;
787 1 tx_buff[4]=1; //RF/64
788 1 tx_buff[5]=custID;
789 1 tx_buff[6]=DataItem[3]; //读EM4100数据位倒置
790 1 tx_buff[7]=DataItem[2];
791 1 tx_buff[8]=DataItem[1];
792 1 tx_buff[9]=DataItem[0];
793 1 tx_buff[10]=(tx_buff[1]^tx_buff[2]^tx_buff[3]^tx_buff[4]^tx_buff[5]^tx_buff[6]^tx_buff[7]^tx_buff[8]^tx_b
-uff[9]);
794 1 tx_buff[11]=0x03;
C51 COMPILER V7.50 MAIN 06/07/2006 18:04:04 PAGE 14
795 1 trace(tx_buff,12);
796 1 }
797
798 uchar Prepare_Cmd( uchar cmd )
799 {
800 1 register uchar line_parity;
801 1
802 1 *forward_ptr++ = 0; //start bit
803 1 *forward_ptr++ = 0;
804 1
805 1 *forward_ptr++ = cmd;
806 1 line_parity = cmd;
807 1 cmd >>= 1;
808 1 *forward_ptr++ = cmd;
809 1 line_parity ^= cmd;
810 1 cmd >>= 1;
811 1 *forward_ptr++ = cmd;
812 1 line_parity ^= cmd;
813 1 *forward_ptr++ = (line_parity & 1);
814 1 return 6;
815 1 }
816
817
818 uchar Prepare_Addr( uchar addr )
819 {
820 1 register uchar line_parity;
821 1 *forward_ptr++ = addr;
822 1 line_parity = addr;
823 1 addr >>= 1;
824 1 *forward_ptr++ = addr;
825 1 line_parity ^= addr;
826 1 addr >>= 1;
827 1 *forward_ptr++ = addr;
828 1 line_parity ^= addr;
829 1 addr >>= 1;
830 1 *forward_ptr++ = addr;
831 1 line_parity ^= addr;
832 1 *forward_ptr++ = 0;
833 1 *forward_ptr++ = 0;
834 1 *forward_ptr++ = (line_parity & 1);
835 1 return 7; //return number of emited bits
836 1 }
837
838
839
840 uchar Prepare_Data( uint data_low, uint data_hi)
841 {
842 1 register uchar line_parity;
843 1 register uchar column_parity;
844 1 register uchar i, j;
845 1 register uint datas;
846 1
847 1 datas = data_low;
848 1 column_parity = 0;
849 1
850 1 for(i=0; i<4; i++)
851 1 {
852 2 line_parity = 0;
853 2 for(j=0; j<8; j++)
854 2 {
855 3 line_parity ^= datas;
856 3 column_parity ^= (datas&1) << j;
C51 COMPILER V7.50 MAIN 06/07/2006 18:04:04 PAGE 15
857 3 *forward_ptr++ = datas;
858 3 datas >>= 1;
859 3 }
860 2 *forward_ptr++ = line_parity;
861 2 if(i == 1)
862 2 datas = data_hi;
863 2 }
864 1
865 1 for(j=0; j<8; j++)
866 1 {
867 2 *forward_ptr++ = column_parity;
868 2 column_parity >>= 1;
869 2 }
870 1 *forward_ptr = 0;
871 1
872 1 return 45; //return number of emited bits
873 1 }
874
875 // Forward Link setup function
876 // Requires: forwarLink_data filled with valid bits (1 bit per byte)
877 // fwd_bit_count set with number of bits to be sent
878 void SendForward(uchar fwd_bit_count)
879 {
880 1 uchar sync=1;
881 1 fwd_write_ptr = forwardLink_data;
882 1 fwd_bit_sz = fwd_bit_count;
883 1 fwd_bit_phase = 3;
884 1 field_stop = fwd_1st_pulse; //fwd_1st_pulse = 256-20
885 1
886 1 TR0=0;
887 1 TH0=0xff;TL0=1; //minimum startup pulse length，255
888 1 MOD=0;
889 1 TF0=0;
890 1 ET0=0; //disable T0 interrupt
891 1 TMOD=(TMOD|0x05); //计数器，16位计数器
892 1 TR0=1;
893 1
894 1 // waiting for clearing T0IE0 => command sending
895 1 while (!TF0)
896 1 {
897 2 if ((sync == 1) && (!DEMOD_OUT))
898 2 sync = 0;
899 2 if ((sync == 0) && (DEMOD_OUT))
900 2 break;
901 2 }
902 1 MOD=1; //force 1st mod pulse
903 1 fwd_bit_sz--; //prepare next bit modulation
904 1 fwd_write_ptr++;
905 1 TF0=0; //clear any pending flag
906 1 TR0=0;
907 1 TH0=0xFF;TL0= field_stop;
908 1 TR0=1;
909 1 field_stop = fwd_01_stop;
910 1 fwd_bit_phase = 2;
911 1 ET0=1; //enable overflow interrupt
912 1
913 1 // waiting for clearing T0IE0 => command sending
914 1 while ( ET0== 1 ) ;
915 1 }
916
917
918 void Wait(uint period)
C51 COMPILER V7.50 MAIN 06/07/2006 18:04:04 PAGE 16
919 {
920 1 TR2 = 0;
921 1 TF2=0;
922 1 TL2=(uchar)(~period); TH2=(uchar)((~period)>>8);
923 1 currentMaxTimeHi = 0xFF;
924 1 ET2=1;
925 1 TR2=1;
926 1 flag_wait=1;
927 1 while ( flag_wait);
928 1 }
929
930 //读卡程序， Manchester解码
931 void ManchesterRead(void)
932 {
933 1 uchar i,j;
934 1 uchar captured_bits_count;
935 1 ClearCaptureBuffers();
936 1 captured_bit_count = 0;
937 1 capture_cnt = 0;
938 1 captured_byte=0;
939 1 capture_check=0;
940 1 capture_check_count=0;
941 1 buffer_capture_check=0;
942 1 compute_capture_check=0;
943 1 check_stat=0;
944 1
945 1 for(i=0;i<120;i++) //2006-5-13 14:19
946 1 {
947 2 capture_time[i]=0xff;
948 2 }
949 1
950 1 TR2 = 0;
951 1 TF2 = 0;
952 1 TL2 = (uchar)(~maxCaptureTimeLow); //0xd7
953 1 TH2 = (uchar)((~maxCaptureTimeLow)>>8); //0xf0, //set timer with initial time
954 1 currentMaxTimeHi = ~maxCaptureTimeHi; //0xff
955 1
956 1 last_capture = ~maxCaptureTimeLow; //~0x0f28
957 1 capture_read_time_data_ptr = capture_time; // capture ptr
958 1
959 1 flag_wait=1;
960 1 ET2=1; //enable t2 interrupt
961 1
962 1 check_stat=ERR_EM4469_NEITHER_ACK; //if read card ok,check_stat will change
963 1 for(i=0;i<0xf0;i++)
964 1 {
965 2 if(DEMOD_OUT == 0) //等待低电平，超时退出
966 2 break;
967 2 }
968 1 if(i>=0xf0)
969 1 {
970 2 for(i=0;i<120;i++)
971 2 {
972 3 capture_time[i]=0xff;
973 3 }
974 2 return;
975 2 }
976 1
977 1 for(i=0;i<0xf0;i++)
978 1 {
979 2 if(DEMOD_OUT == 1) //等待高电平，超时退出
980 2 break;
C51 COMPILER V7.50 MAIN 06/07/2006 18:04:04 PAGE 17
981 2 }
982 1 if(i>=0xf0)
983 1 {
984 2 for(i=0;i<120;i++)
985 2 {
986 3 capture_time[i]=0xff;
987 3 }
988 2 return;
989 2 }
990 1
⌨️ 快捷键说明
复制代码
Ctrl + C
搜索代码
Ctrl + F
全屏模式
F11
切换主题
Ctrl + Shift + D
显示快捷键
?
增大字号
Ctrl + =
减小字号
Ctrl + -