📄 1602.lst
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866 从DS1302中读出温度值并将其显示在LCD上
867 ****************************************************************************/
868 void readtime(void)
869 {
870 1 SECOND=read_ds1302(0x81);
871 1 MINUTE=read_ds1302(0x83);
872 1 HOUR=read_ds1302(0x85);
873 1 DAY=read_ds1302(0x87);
874 1 MONTH=read_ds1302(0x89);
875 1 WEEK=read_ds1302(0x8b);
876 1 YEAR=read_ds1302(0x8d);
877 1 }
878
879 /****************************************************************************
880 左屏判忙
881 ****************************************************************************/
882 void busyl(void)
883 {
884 1 CS1=1;
885 1 CS2=0;
886 1 DI=0;
887 1 RW=1;
888 1 ENABLE=1;
889 1 delayus(2);
890 1
891 1 while(BF);
892 1
893 1 ENABLE=0;
894 1 RW=0;
895 1 DI=0;
896 1 }
897
898 /****************************************************************************
899 左屏写指令
900 ****************************************************************************/
901 void write_cmdl(unsigned char Commandaddr)
902 {
903 1 busyl();
904 1
905 1 DI=0;
906 1 RW=0;
907 1
908 1 ENABLE=1;
909 1 P0=Commandaddr;
910 1 ENABLE=0;
911 1
912 1 RW=0;
913 1 DI=0;
914 1 }
915
916 /****************************************************************************
917 左屏写数据
918 ****************************************************************************/
919 void write_datal(unsigned char Dataaddr)
920 {
921 1 busyl();
922 1
C51 COMPILER V8.02 1602 04/21/2008 20:44:58 PAGE 16
923 1 DI=1;
924 1 RW=0;
925 1
926 1 ENABLE=1;
927 1 P0=Dataaddr;
928 1 ENABLE=0;
929 1
930 1 RW=0;
931 1 DI=0;
932 1 }
933
934 /****************************************************************************
935 右屏判忙
936 ****************************************************************************/
937 void busyr(void)
938 {
939 1 CS1=0;
940 1 CS2=1;
941 1 DI=0;
942 1 RW=1;
943 1 ENABLE=1;
944 1 delayus(2);
945 1
946 1 while(BF);
947 1
948 1 ENABLE=0;
949 1 RW=0;
950 1 DI=0;
951 1 }
952
953 /****************************************************************************
954 右屏写指令
955 ****************************************************************************/
956 void write_cmdr(unsigned char Commandaddr)
957 {
958 1 busyr();
959 1
960 1 DI=0;
961 1 RW=0;
962 1
963 1 ENABLE=1;
964 1 P0=Commandaddr;
965 1 ENABLE=0;
966 1
967 1 RW=0;
968 1 DI=0;
969 1 }
970
971 /****************************************************************************
972 右屏写数据
973 ****************************************************************************/
974 void write_datar(unsigned char Dataaddr)
975 {
976 1 busyr();
977 1
978 1 DI=1;
979 1 RW=0;
980 1
981 1 ENABLE=1;
982 1 P0=Dataaddr;
983 1 ENABLE=0;
984 1
C51 COMPILER V8.02 1602 04/21/2008 20:44:58 PAGE 17
985 1 RW=0;
986 1 DI=0;
987 1 }
988
989 /****************************************************************************
990 LCD初始化
991 ****************************************************************************/
992 void init_12864(void)
993 {
994 1 write_cmdl(0xc0);
995 1 write_cmdl(0x3f);
996 1
997 1 write_cmdr(0xc0);
998 1 write_cmdr(0x3f);
999 1 }
1000
1001 /****************************************************************************
1002 LCD清屏
1003 ****************************************************************************/
1004 void clear(void)
1005 {
1006 1 unsigned char i,j;
1007 1 unsigned char Page,Row;
1008 1
1009 1 for(i=0;i<8;i++)
1010 1 {
1011 2 Page=i|0xb8;
1012 2 write_cmdl(Page);
1013 2 write_cmdr(Page);
1014 2
1015 2 Row=0x40;
1016 2 write_cmdl(Row);
1017 2 write_cmdr(Row);
1018 2
1019 2 for(j=0;j<64;j++)
1020 2 {
1021 3 write_datal(0x00);
1022 3 write_datar(0x00);
1023 3 }
1024 2 }
1025 1 }
1026
1027 /****************************************************************************
1028 写入ASCII字符
1029 ****************************************************************************/
1030 void write_ascii(unsigned char x,unsigned char y,unsigned char time,bit fanhei)
1031 {
1032 1 unsigned char i,j;
1033 1 unsigned char k=0;
1034 1 unsigned char fanheizi=0;
1035 1 unsigned char Page,Row;
1036 1
1037 1 Page=x|0xb8;
1038 1 if((y>=0)&&(y<8))
1039 1 {
1040 2 Row=(y*8)|0x40;
1041 2
1042 2 write_cmdl(Page);
1043 2 write_cmdl(Row);
1044 2
1045 2 for(j=0;j<2;j++)
1046 2 {
C51 COMPILER V8.02 1602 04/21/2008 20:44:58 PAGE 18
1047 3 for(i=0;i<8;i++)
1048 3 {
1049 4 if(fanhei==1)
1050 4 {
1051 5 fanheizi=255-nAsciiDot[time*16+k];
1052 5 }
1053 4 else
1054 4 {
1055 5 fanheizi=nAsciiDot[time*16+k];
1056 5 }
1057 4 write_datal(fanheizi);
1058 4 k++;
1059 4 }
1060 3 write_cmdl(Row);
1061 3 write_cmdl(Page+1);
1062 3 }
1063 2 }
1064 1
1065 1 if((y>=8)&&(y<16))
1066 1 {
1067 2 y=y-8;
1068 2 Row=(y*8)|0x40;
1069 2
1070 2 write_cmdr(Page);
1071 2 write_cmdr(Row);
1072 2
1073 2 for(j=0;j<2;j++)
1074 2 {
1075 3 for(i=0;i<8;i++)
1076 3 {
1077 4 if(fanhei==1)
1078 4 {
1079 5 fanheizi=255-nAsciiDot[time*16+k];
1080 5 }
1081 4 else
1082 4 {
1083 5 fanheizi=nAsciiDot[time*16+k];
1084 5 }
1085 4 write_datar(fanheizi);
1086 4 k++;
1087 4 }
1088 3 write_cmdr(Row);
1089 3 write_cmdr(Page+1);
1090 3 }
1091 2 }
1092 1 }
1093
1094 /****************************************************************************
1095 写入星期
1096 ****************************************************************************/
1097 void write_week(unsigned char x,unsigned char y,unsigned char weektime,bit fanhei)
1098 {
1099 1 unsigned char i,j;
1100 1 unsigned char k=0;
1101 1 unsigned char fanheizi=0;
1102 1 unsigned char Page,Row;
1103 1
1104 1 Page=x|0xb8;
1105 1 if((y>=0)&&(y<8))
1106 1 {
1107 2 Row=(y*8)|0x40;
1108 2
C51 COMPILER V8.02 1602 04/21/2008 20:44:58 PAGE 19
1109 2 write_cmdl(Page);
1110 2 write_cmdl(Row);
1111 2
1112 2 for(j=0;j<2;j++)
1113 2 {
1114 3 for(i=0;i<16;i++)
1115 3 {
1116 4 if(fanhei==1)
1117 4 {
1118 5 fanheizi=255-characterweek[(weektime-1)*32+k];
1119 5 }
1120 4 else
1121 4 {
1122 5 fanheizi=characterweek[(weektime-1)*32+k];
1123 5 }
1124 4 write_datal(fanheizi);
1125 4 k++;
1126 4 }
1127 3 write_cmdl(Row);
1128 3 write_cmdl(Page+1);
1129 3 }
1130 2 }
1131 1
1132 1 if((y>=8)&&(y<16))
1133 1 {
1134 2 y=y-8;
1135 2 Row=(y*8)|0x40;
1136 2
1137 2 write_cmdr(Page);
1138 2 write_cmdr(Row);
1139 2
1140 2 for(j=0;j<2;j++)
1141 2 {
1142 3 for(i=0;i<16;i++)
1143 3 {
1144 4 if(fanhei==1)
1145 4 {
1146 5 fanheizi=255-characterweek[(weektime-1)*32+k];
1147 5 }
1148 4 else
1149 4 {
1150 5 fanheizi=characterweek[(weektime-1)*32+k];
1151 5 }
1152 4 write_datar(fanheizi);
1153 4 k++;
1154 4 }
1155 3 write_cmdr(Row);
1156 3 write_cmdr(Page+1);
1157 3 }
1158 2 }
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