自己编写修改的程序,看看适合用不。
单片机源程序如下:
- /******************************************************************************/
- /* 项目名称 : TX-1C扩展板 DS12C887实时时钟 */
- /* 主控芯片 : STC89C52 */
- /* 文件名称 : RTC_DS12C887 */
- /* 文件功能 : DS12C887实时时钟操作 */
- /* 文件版权 : 北京海克智动科技开发有限公司 */
- /* 文件版本 : */
- /******************************************************************************/
- /**********************************包含头文件**********************************/
- #include<reg52.h>
- #include<define.h>
- void delay(uint z)//延时函数
- {
- uint x,y;
- for(x=z;x>0;x--)
- for(y=110;y>0;y--);
- }
- void di() //蜂鸣器报警声音
- {
- beep=0;
- delay(100);
- beep=1;
- }
- void write_com(uchar com)
- {//写液晶命令函数
- rs=0;
- lcden=0;
- P0=com;
- delay(3);
- lcden=1;
- delay(3);
- lcden=0;
- }
- void write_date(uchar date)
- {//写液晶数据函数
- rs=1;
- lcden=0;
- P0=date;
- delay(3);
- lcden=1;
- delay(3);
- lcden=0;
- }
- void init()
- {//初始化函数
- uchar num;
- EA=1;//打开总中断
- EX1=1;//开外部中断1
- IT1=1;//设置负跳变沿触发中断
- flag1=0;//变量初始化
- t0_num=0;
- s1num=0;
- week=1;
- dula=0;//关闭数码管显示
- wela=0;
- lcden=0;
- rd=0;
- /*以下几行在首次设置DS12C887时使用,以后不必再写入*/
- write_ds(0x0A,0x20);//打开振荡器
- write_ds(0x0B,0x26);//设置24小时模式,数据二进制格式
- //开启闹铃中断
- set_time();//设置上电默认时间
- //-----------------------------------------------------
- write_com(0x38);//1602液晶初始化
- write_com(0x0c);
- write_com(0x06);
- write_com(0x01);
- write_com(0x80);
- for(num=0;num<15;num++)//写入液晶固定部分显示
- {
- write_date(table[num]);
- delay(1);
- }
- write_com(0x80+0x40);
- for(num=0;num<11;num++)
- {
- write_date(table1[num]);
- delay(1);
- }
- }
- 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
- char shi,ge;
- shi=date/10;
- ge=date%10;
- write_com(0x80+0x40+add);
- write_date(0x30+shi);
- write_date(0x30+ge);
- }
- 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
- char shi,ge;
- shi=date/10;
- ge=date%10;
- write_com(0x80+add);
- write_date(0x30+shi);
- write_date(0x30+ge);
- }
- void write_week(char we)
- {//写液晶星期显示函数
- write_com(0x80+12);
- switch(we)
- {
- case 1: write_date('M');delay(5);
- write_date('O');delay(5);
- write_date('N');
- break;
- case 2: write_date('T');delay(5);
- write_date('U');delay(5);
- write_date('E');
- break;
- case 3: write_date('W');delay(5);
- write_date('E');delay(5);
- write_date('D');
- break;
- case 4: write_date('T');delay(5);
- write_date('H');delay(5);
- write_date('U');
- break;
- case 5: write_date('F');delay(5);
- write_date('R');delay(5);
- write_date('I');
- break;
- case 6: write_date('S');delay(5);
- write_date('A');delay(5);
- write_date('T');
- break;
- case 7: write_date('S');delay(5);
- write_date('U');delay(5);
- write_date('N');
- break;
- }
- }
- void keyscan()
- {
- if(flag_ri==1)
- {//这里用来取消闹钟报警,任一键取消报警
- if((s1==0)||(s2==0)||(s3==0)||(s4==0))
- {
- delay(5);
- if((s1==0)||(s2==0)||(s3==0)||(s4==0))
- {
- while(!(s1&&s2&&s3&&s4));
- di();
- flag_ri=0;//清除报警标志
- }
- }
- }
- if(s1==0)//检测S1
- {
- delay(5);
- if(s1==0)
- {
- s1num++;//记录按下次数
- if(flag1==1)
- if(s1num==4)
- s1num=1;
- flag=1;
- while(!s1);di();
- switch(s1num)
- {//光标闪烁点定位
- case 1: write_com(0x80+0x40+10);
- write_com(0x0f);
- break;
- case 2: write_com(0x80+0x40+7);
- break;
- case 3: write_com(0x80+0x40+4);
- break;
- case 4: write_com(0x80+12);
- break;
- case 5: write_com(0x80+9);
- break;
- case 6: write_com(0x80+6);
- break;
- case 7: write_com(0x80+3);
- break;
- case 8: s1num=0;
- write_com(0x0c);
- flag=0;
- write_ds(0,miao);
- write_ds(2,fen);
- write_ds(4,shi);
- write_ds(6,week);
- write_ds(7,day);
- write_ds(8,month);
- write_ds(9,year);
- break;
- }
- }
- }
- if(s1num!=0)//只有当S1按下后,才检测S2和S3
- {
- if(s2==0)
- {
- delay(1);
- if(s2==0)
- {
- while(!s2);di();
- switch(s1num)
- {//根据功能键次数调节相应数值
- case 1: miao++;
- if(miao==60)
- miao=0;
- write_sfm(10,miao);
- write_com(0x80+0x40+10);
- break;
- case 2: fen++;
- if(fen==60)
- fen=0;
- write_sfm(7,fen);
- write_com(0x80+0x40+7);
- break;
- case 3: shi++;
- if(shi==24)
- shi=0;
- write_sfm(4,shi);
- write_com(0x80+0x40+4);
- break;
- case 4: week++;
- if(week==8)
- week=1;
- write_week(week);
- write_com(0x80+12);
- break;
- case 5: day++;
- if(day==32)
- day=1;
- write_nyr(9,day);
- write_com(0x80+9);
- break;
- case 6: month++;
- if(month==13)
- month=1;
- write_nyr(6,month);
- write_com(0x80+6);
- break;
- case 7: year++;
- if(year==100)
- year=0;
- write_nyr(3,year);
- write_com(0x80+3);
- break;
- }
- }
- }
- if(s3==0)
- {
- delay(1);
- if(s3==0)
- {
- while(!s3);di();
- switch(s1num)
- {//根据功能键次数调节相应数值
- case 1: miao--;
- if(miao==-1)
- miao=59;
- write_sfm(10,miao);
- write_com(0x80+0x40+10);
- break;
- case 2: fen--;
- if(fen==-1)
- fen=59;
- write_sfm(7,fen);
- write_com(0x80+0x40+7);
- break;
- case 3: shi--;
- if(shi==-1)
- shi=23;
- write_sfm(4,shi);
- write_com(0x80+0x40+4);
- break;
- case 4: week--;
- if(week==0)
- week=7;
- write_week(week);
- write_com(0x80+12);
- break;
- case 5: day--;
- if(day==0)
- day=31;
- write_nyr(9,day);
- write_com(0x80+9);
- break;
- case 6: month--;
- if(month==0)
- month=12;
- write_nyr(6,month);
- write_com(0x80+6);
- break;
- case 7: year--;
- if(year==-1)
- year=99;
- write_nyr(3,year);
- write_com(0x80+3);
- break;
- }
- }
- }
- }
- if(s4==0)//检测S4
- {
- delay(5);
- if(s4==0)
- {
- flag1=~flag1;
- while(!s4);di();
- if(flag1==0)
- {//退出闹钟设置时保存数值
- flag=0;
- write_com(0x80+0x40);
- write_date(' ');
- write_date(' ');
- write_com(0x0c);
- write_ds(1,miao);
- write_ds(3,fen);
- write_ds(5,shi);
- }
- else
- {//进入闹钟设置
- read_alarm();//读取原始数据
- miao=amiao;//重新赋值用以按键调节
- fen=afen;
- shi=ashi;
- write_com(0x80+0x40);
- write_date('R');//显示标志
- write_date('i');
- write_com(0x80+0x40+3);
- write_sfm(4,ashi);//送液晶显示闹钟时间
- write_sfm(7,afen);
- write_sfm(10,amiao);
- }
- }
- }
- }
- void write_ds(uchar add,uchar date)
- {//写12C887函数
- dscs=0;
- dsas=1;
- dsds=1;
- dsrw=1;
- P0=add;//先写地址
- dsas=0;
- dsrw=0;
- P0=date;//再写数据
- dsrw=1;
- dsas=1;
- dscs=1;
- }
- uchar read_ds(uchar add)
- {//读12C887函数
- uchar ds_date;
- dsas=1;
- dsds=1;
- dsrw=1;
- dscs=0;
- P0=add;//先写地址
- dsas=0;
- dsds=0;
- P0=0xff;
- ds_date=P0;//再读数据
- dsds=1;
- dsas=1;
- dscs=1;
- return ds_date;
- }
- /*---首次操作12C887时给予寄存器初始化---*/
- void set_time()
- {//首次上电初始化时间函数
- write_ds(0,0);
- write_ds(1,0);
- write_ds(2,0);
- write_ds(3,0);
- write_ds(4,0);
- write_ds(5,0);
- write_ds(6,0);
- write_ds(7,0);
- write_ds(8,0);
- write_ds(9,0);
- }
- //----------------------------------------
- void read_alarm()
- {//读取12C887闹钟值
- amiao=read_ds(1);
- afen=read_ds(3);
- ashi=read_ds(5);
- }
- void main()//主函数
- {
- init();//调用初始化函数
- while(1)
- {
- keyscan();//按键扫描
- if(flag_ri==1)//当闹钟中断时进入这里
- {
- di();
- delay(100);
- di();
- delay(500);
- }
- if(flag==0&&flag1==0)//正常工作时进入这里
- {
- keyscan();//按键扫描
- year=read_ds(9);//读取12C887数据
- month=read_ds(8);
- day=read_ds(7);
- week=read_ds(6);
- shi=read_ds(4);
- fen=read_ds(2);
- miao=read_ds(0);
- write_sfm(10,miao);//送液晶显示
- write_sfm(7,fen);
- write_sfm(4,shi);
- write_week(week);
- write_nyr(3,year);
- write_nyr(6,month);
- write_nyr(9,day);
- }
- }
- }
- void exter() interrupt 2//外部中断1服务程序
- { uchar c; //进入中断表示闹钟时间到,
- flag_ri=1; //设置标志位,用以大程序中报警提示
- c=read_ds(0x0c);//读取12C887的C寄存器表示响应了中断
- }
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RTC_DS12C887.zip
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