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1、#include /头文件#include#define uchar unsigned char /宏定义#define uint unsigned int/位定义sbit rs=P25; /液晶位定义 sbit lcden=P27;sbit s1=P20; /时间功能切换按键sbit s2=P21; /按键加sbit s3=P23; /按键减sbit s4=P24; /闹钟功能切换键sbit rst=P15; /ds1302引脚定义sbit io=P16;sbit sclk=P17;sbit beep=P30; /蜂鸣器uchar num,count,shi,fen,miao,s1num,s
2、2num,year,month,day,week,flag,flag1,year1,month1,day1,week1,shi1,fen1,miao1,year2,month2,day2,week2,shi2,fen2,miao2,year5,month5,day5,week5,shi5,fen5,miao5,wk,ashi,afen; /参数定义uchar code table=20 - - ; /液晶固定显示uchar code table1= : : 00:00;/*uchar time_dat7=12,1,6,6,12,59,59; /年周月日时分秒uchar write_add7=0
3、x8c,0x8a,0x88,0x86,0x84,0x82,0x80;uchar read_add7=0x8d,0x8b,0x89,0x87,0x85,0x83,0x81;*/void write_com(uchar com); /液晶写指令函数void write_data(uchar date); /液晶写数据函数void write_ds1302(uchar add,uchar dat); /ds1302芯片写指令函数void set_rtc(); /ds1302时间设置函数void time_pros(); /ds1302进制转换函数void read_rtc(); /ds1302读时间
4、函数void alarm(); /闹钟函数void delay(uint z) /延时函数 uint x,y; for(x=z;x0;x-) for(y=110;y0;y-);void init() /初始化 lcden=0; flag=0; flag1=0; write_com(0x38); write_com(0x0c); write_com(0x06); write_com(0x01); write_com(0x80); /液晶固定显示，第一行 for(num=0;num14;num+) write_data(tablenum); delay(5); write_com(0x80+0x4
5、0); /液晶显示第二行 for(num=0;num20;num+) write_data(table1num); delay(5); void write_com(uchar com)/1602液晶写指令 rs=0; P0=com; delay(5); lcden=1; delay(5); lcden=0;void write_data(uchar date)/1602液晶写写数据 rs=1; P0=date; delay(5); lcden=1; delay(5); lcden=0;void write_sfm(uchar add,uchar date)/时分秒 uchar shi3,ge
6、; shi3=date/10; ge=date%10; write_com(0x80+0x40+add); write_data(0x30+shi3); write_data(0x30+ge);void write_nyr(uchar ad,uchar date)/年月日 uchar shi4,ge2; shi4=date/10; ge2=date%10; write_com(0x80+ad); write_data(0x30+shi4); write_data(0x30+ge2);void write_week(uchar wk) /星期按西方星期设置 星期天为第一天 write_com(0
7、x80+11); switch(wk) case 1: write_data(S); delay(5); write_data(U); delay(5); write_data(N); break; case 2: write_data(M); delay(5); write_data(O); delay(5); write_data(N); break; case 3: write_data(T); delay(5); write_data(U); delay(5); write_data(E); break; case 4: write_data(W); delay(5); write_d
8、ata(E); delay(5); write_data(D); break; case 5: write_data(T); delay(5); write_data(H); delay(5); write_data(U); break; case 6: write_data(F); delay(5); write_data(R); delay(5); write_data(T); break; case 7: write_data(S); delay(5); write_data(A); delay(5); write_data(T); break; void keyscan() /按键函数
9、 if(s1=0) delay(5); if(s1=0) write_com(0x0f); s1num+; /记录按键次数 flag=1; flag1=1; while(!s1); switch(s1num)/光标闪烁点定位 case 1:write_com(0x80+0x40+6); /秒 break; case 2:write_com(0x80+0x40+3); /分 break; case 3:write_com(0x80+0x40+0); /时 break; case 4:write_com(0x80+11); /星期 break; case 5:write_com(0x80+8); /日 brea
