C51 COMPILER V7.06 DS12C887 04/27/2020 09:49:01 PAGE 1 C51 COMPILER V7.06, COMPILATION OF MODULE DS12C887 OBJECT MODULE PLACED IN ds12c887.OBJ COMPILER INVOKED BY: C:\Keil\C51\BIN\C51.EXE ds12c887.c BROWSE DEBUG OBJECTEXTEND stmt level source 1 /******************************************************************************/ 2 /* 项目名称 : TX-1C扩展板 DS12C887实时时钟 */ 3 /* 主控芯片 : STC89C52 */ 4 /* 文件名称 : RTC_DS12C887 */ 5 /* 文件功能 : DS12C887实时时钟操作 */ 6 /* 文件版权 : 天祥电子 */ 7 /* 文件版本 : */ 8 /******************************************************************************/ 9 /**********************************包含头文件**********************************/ 10 #include 11 bit ds12887_flag1,ds12887_flag_ri;//定义两个位变量 12 uchar ds12887_count,s1num,ds12887_flag,t0_num;//其它变量定义 13 char miao,shi,fen,year,month,day,week,amiao,afen,ashi; 14 uchar code ds12887_table[]=" 20 - - ";//液晶固定显示内容 15 uchar code ds12887_table1[]=" : : "; 16 void write_ds(uchar,uchar);//函数申明 17 void set_alarm(uchar,uchar,uchar);void read_alarm(); 18 uchar read_ds(uchar);void set_time(); 19 20 void ds12887_delay(uint z)//延时函数 21 { 22 1 uint x,y; 23 1 for(x=z;x>0;x--) 24 1 for(y=110;y>0;y--); 25 1 } 26 void ds12887_init() //初始化函数 27 { 28 1 uchar num; 29 1 EA=1; //打开总中断 30 1 EX1=1; //开外部中断1 31 1 IT1=1; //设置负跳变沿触发中断 32 1 ds12887_flag1=0; //变量初始化 33 1 t0_num=0; 34 1 s1num=0; 35 1 week=1; 36 1 lcden=0; 37 1 rd=0; 38 1 write_ds(0x0A,0x20); //打开振荡器 39 1 write_ds(0x0B,0x26); //设置24小时模式，数据二进制格式 40 1 set_time(); //设置上电默认时间 41 1 lcd_write_com(0x38); //1602液晶初始化 42 1 delay_1602(20); 43 1 lcd_write_com(0x0c); 44 1 delay_1602(20); 45 1 lcd_write_com(0x06); 46 1 delay_1602(20); 47 1 lcd_write_com(0x01); 48 1 delay_1602(20); 49 1 lcd_write_com(0x80); 50 1 delay_1602(20); 51 1 for(num=0;num<15;num++) //写入液晶固定部分显示 52 1 { 53 2 lcd_write_date(ds12887_table[num]); 54 2 //delay_1602(100); 55 2 ds12887_delay(10); C51 COMPILER V7.06 DS12C887 04/27/2020 09:49:01 PAGE 2 56 2 } 57 1 lcd_write_com(0x80+0x40); 58 1 for(num=0;num<11;num++) 59 1 { 60 2 lcd_write_date(ds12887_table1[num]); 61 2 //delay_1602(100); 62 2 ds12887_delay(10); 63 2 } 64 1 } 65 void write_sfm(uchar add,char date) //1602液晶刷新时分秒函数4为时，7为分，10为秒 66 { 67 1 uchar shi,ge; 68 1 shi=date/10; 69 1 ge=date%10; 70 1 lcd_write_com(0x80+0x40+add); 71 1 lcd_write_date(0x30+shi); 72 1 lcd_write_date(0x30+ge); 73 1 } 74 void write_nyr(uchar add,char date) //1602液晶刷新年月日函数3为年，6为分，9为秒 75 { 76 1 uchar shi,ge; 77 1 shi=date/10; 78 1 ge=date%10; 79 1 lcd_write_com(0x80+add); 80 1 lcd_write_date(0x30+shi); 81 1 lcd_write_date(0x30+ge); 82 1 } 83 void write_week(char we) //写液晶星期显示函数 84 { 85 1 lcd_write_com(0x80+12); 86 1 switch(we) 87 1 { 88 2 case 1: lcd_write_date('M');ds12887_delay(5); 89 2 lcd_write_date('O');ds12887_delay(5); 90 2 lcd_write_date('N'); 91 2 break; 92 2 case 2: lcd_write_date('T');ds12887_delay(5); 93 2 lcd_write_date('U');ds12887_delay(5); 94 2 lcd_write_date('E'); 95 2 break; 96 2 case 3: lcd_write_date('W');ds12887_delay(5); 97 2 lcd_write_date('E');ds12887_delay(5); 98 2 lcd_write_date('D'); 99 2 break; 100 2 case 4: lcd_write_date('T');ds12887_delay(5); 101 2 lcd_write_date('H');ds12887_delay(5); 102 2 lcd_write_date('U'); 103 2 break; 104 2 case 5: lcd_write_date('F');ds12887_delay(5); 105 2 lcd_write_date('R');ds12887_delay(5); 106 2 lcd_write_date('I'); 107 2 break; 108 2 case 6: lcd_write_date('S');ds12887_delay(5); 109 2 lcd_write_date('A');ds12887_delay(5); 110 2 lcd_write_date('T'); 111 2 break; 112 2 case 7: lcd_write_date('S');ds12887_delay(5); 113 2 lcd_write_date('U');ds12887_delay(5); 114 2 lcd_write_date('N'); 115 2 break; 116 2 } 117 1 } C51 COMPILER V7.06 DS12C887 04/27/2020 09:49:01 PAGE 3 118 void write_ds(uchar add,uchar date) //写12C887函数 119 { 120 1 dscs=0; 121 1 dsas=1; 122 1 dsds=1; 123 1 dsrw=1; 124 1 P0=add; //先写地址 125 1 dsas=0; 126 1 dsrw=0; 127 1 P0=date; //再写数据 128 1 dsrw=1; 129 1 dsas=1; 130 1 dscs=1; 131 1 } 132 133 uchar read_ds(uchar add) //读12C887函数 134 { 135 1 uchar ds_date; 136 1 dsas=1; 137 1 dsds=1; 138 1 dsrw=1; 139 1 dscs=0; 140 1 P0=add; //先写地址 141 1 dsas=0; 142 1 dsds=0; 143 1 P0=0xff; 144 1 ds_date=P0; //再读数据 145 1 dsds=1; 146 1 dsas=1; 147 1 dscs=1; 148 1 return ds_date; 149 1 } 150 /*---首次操作12C887时给予寄存器初始化---*/ 151 void set_time() //首次上电初始化时间函数 152 { 153 1 write_ds(0,0); 154 1 write_ds(1,0); 155 1 write_ds(2,0); 156 1 write_ds(3,0); 157 1 write_ds(4,0); 158 1 write_ds(5,0); 159 1 write_ds(6,0); 160 1 write_ds(7,0); 161 1 write_ds(8,0); 162 1 write_ds(9,0); 163 1 } 164 void ds12c887_main()//主函数 165 { 166 1 system_init(); 167 1 ds12887_init();//调用初始化函数 168 1 while(message=='a') 169 1 { 170 2 year=read_ds(9);//读取12C887数据 171 2 month=read_ds(8); 172 2 day=read_ds(7); 173 2 week=read_ds(6); 174 2 shi=read_ds(4); 175 2 fen=read_ds(2); 176 2 miao=read_ds(0); 177 2 write_sfm(10,miao);//送液晶显示 178 2 write_sfm(7,fen); 179 2 write_sfm(4,shi); C51 COMPILER V7.06 DS12C887 04/27/2020 09:49:01 PAGE 4 180 2 //write_week(week); 181 2 write_nyr(2,year); 182 2 write_nyr(5,month); 183 2 write_nyr(8,day); 184 2 } 185 1 } 186 /*void exter() interrupt 2//外部中断1服务程序 187 { 188 uchar c; //进入中断表示闹钟时间到， 189 ds12887_flag_ri=1; //设置标志位，用以大程序中报警提示 190 c=read_ds(0x0c);//读取12C887的C寄存器表示响应了中断 191 } */ 192 193 194 MODULE INFORMATION: STATIC OVERLAYABLE CODE SIZE = 651 ---- CONSTANT SIZE = 29 ---- XDATA SIZE = ---- ---- PDATA SIZE = ---- ---- DATA SIZE = 14 6 IDATA SIZE = ---- ---- BIT SIZE = 2 ---- END OF MODULE INFORMATION. C51 COMPILATION COMPLETE. 0 WARNING(S), 0 ERROR(S)