sed1520显示时间

/*将时间显示在LCD上，LCD的控制器是sed1520,可以调整，调整规律为s1键 为时分秒调整端，按一下为秒调整，按2下位分调整，按三次为时调整，按四次调整结束， 计时开始。s2,s3键为时分秒加减端，该程序通过调试，但是不是时钟芯片来控制时间。 只能是51学习之用，工业上，时钟更多是用时钟芯片，比如DS1302,PCF8563,等， 请读者注意*/#include #include #define xiezhi1 XBYTE0x8000 /*left lcd command address*/#define xieshuju1 XBYTE0x8001 /*left lcd data write addresss*/#define duzhi1 XBYTE0x8002 /*left lcd read status address*/#define xiezhi2 XBYTE0x8004 /*right lcd write command address*/#define xieshuju2 XBYTE0x8005 /*right lcd data write addresss*/#define duzhi2 XBYTE0x8006 /*right lcd read status address*/sbit s1=P11; /*时分秒选择端*/sbit s2=P12; /*加端*/sbit s3=P13 ; /*减端*/sbit beep=P10;unsigned char code tab18= 0x00,0x00,0x00,0x7E,0x81,0x81,0x81, 0x7e,0x00,0x00,0x00,0x00,0x00,0x82,0xff,0x80, /*1*/0x00,0x00,0x00,0xc6,0xa1,0x91,0x89,0xc6, /*2*/0x00,0x00,0x00,0x42,0x81,0x81,0x99,0x66,0x00,0x00,0x00,0x1f,0x10,0xff,0x10,0x10,0x00,0x00,0x00,0x4F,0x89,0x89,0x89,0x79,0x00,0x00,0x00,0x7E,0x89,0x89,0x89,0x72,0x00,0x00,0x00,0x01,0x01,0xF9,0x05,0x03,0x00,0x00,0x00,0x76,0x89,0x89,0x89,0x76,0x00,0x00,0x00,0x4E,0x91,0x91,0x91,0x7E /*9*/;unsigned char code tab2=0x00,0x00,0x00, 0xcc, 0x00,0x00 ;/*LCD上冒号的编码*/unsigned char shi,fen,miao; /*定义时分秒*/unsigned char num;unsigned int tt;unsigned char ledbuf6;void writezhi1(unsigned char command)while(duzhi1&0x80); /*先判断读状态高位是不是忙信号*/xiezhi1=command; /*左边写指令子程序*/ void writeshuju1(unsigned char shuju)while(duzhi1&0x80); /*先判断读状态高位是不是忙信号*/xieshuju1=shuju; /*左边写数据子程序*/ void writezhi2(unsigned char command) while(duzhi2&0x80); /*先判断读状态高位是不是忙信号*/xiezhi2=command; /*右边写指令子程序*/ void writeshuju2(unsigned char shuju)while(duzhi2&0x80); /*先判断读状态高位是不是忙信号*/xieshuju2=shuju; /*右边写数据子程序*/ void init() writezhi1(0xe2); writezhi2(0xe2); /*复位*/ writezhi1(0xa4); writezhi2(0xa4); /*静态驱动*/ writezhi1(0xa9); writezhi2(0xa9); /*刷新率为1/32*/ writezhi1(0xa0); writezhi2(0xa0); /*ADC choice*/ writezhi1(0xc0); writezhi2(0xc0); /*起始行设置*/ writezhi1(0xaf); writezhi2(0xaf); /*开显示*/ void clear() unsigned char i,j; i=0; do writezhi1(i+0xb8); writezhi2(i+0xb8); /*对左右两边LCD4页80列清零*/ writezhi1(0x00); writezhi2(0x00); j=0x50; do writeshuju1(0x00); writeshuju2(0x00); while(-j!=0); while(+i!=4); void delay(unsigned char z) unsigned char x; while(-z!=0) /*按键子程序要用到的延时程序*/ for(x=100;x!=0;x-); void d1() beep=0; /*按一下调整键响一下*/ delay(20); beep=1; void key() if(s1=0) delay(5); if(s1=0) /*第一个按键判断*/ num+; while(!s1); /*等键松开*/ d1(); /*响一下*/ if(num=4) num=0; /*如果第一个按键次数到了四次，则num=0;*/ TR0=1; if(num!=0) TR0=0; /*第一个按键在四次之内，则停止计时，等待时分秒调整*/ if(s2=0) /*第二个按键为时分秒加键*/ delay(5); if(s2=0) while(!s2); /*第一个按键按下后，判断2,3键按下*/ d1(); if(num=1) /*在第一个按键按一次的情况下，按第二个键为秒加*/ miao+; if(miao=60) miao=0; if(num=2) /*在第一个按键按2次的情况下，按第二个键为分加键 */ fen+; if(fen=60) fen=0; if(num=3) /*在第一个按键按3次的情况下，按第二个键为时加键 */ shi+; if(shi=24) shi=0; if(s3=0) /*第三个按键为时分秒减键*/ delay(5); if(s3=0) while(!s3); d1(); if(num=1) /*在第一个按键按一次的情况下，按第三个键为秒减*/ miao-; if(miao=-1) miao=59; if(num=2) /*在第一个按键按2次的情况下，按第三个键为分减*/ fen-; if(fen=-1) fen=59; if(num=3) /*在第一个按键按3次的情况下，按第三个键为时减*/ shi-; if(shi=-1) shi=23; void timer0() interrupt 1 tt-; if(tt=0) /*中断10000次就是一秒*/ tt=10000; miao+; /*秒加一*/ if(miao=60) miao=0; /*if second equal to 60,minute plus one,*/ fen+; if(fen=60) /*if minutes equal to 60,hour plus one*/ fen=0; shi+; if(shi=24) shi=0; /*if hour equal to 24,clear hour buffer*/ void displaylcd(unsigned char page,unsigned char column,unsigned char code_) /*在左边lcd里显示数子子程序*/ unsigned char i; writezhi1(page+0xb8); /*选择页码*/ for(i=0;i8;i+) /*一个数字有8个列显示,等于就是8X8点阵*/ writezhi1(column+i); /*选定列地址*/ writeshuju1(tab1code_i); /*选择某个数字，由code_决定*/ void displaylcd1(unsigned char page,unsigned char column) unsigned char i; /*显示冒号子程序*/ writezhi1(page+0xb8); for(i=0;i6;i+) writezhi1(column+i); writeshuju1(tab2i); void main() TMOD=0x02; /*定时器方式2，自动重装载*/ TH0=0xce; /*定时时间为0.1ms,*/ TL0=0xce; IE=0x82; /* IE=1,ET0=1*/ shi=0; fen=0; /*时分秒初始值为0*/ miao=0; num=0; tt=10000; /*计时10000次就是1秒*/ TR0=1; /*开始定时*/ while(1) init(); /*lcd initiation*/ clear(); /*lcd clear*/ key(); /*调键盘子chengxu*/ ledbuf0=shi/10; ledbuf1=shi%10; /*将时分秒信息放在显示缓冲区*/ ledbuf2=fen/10; ledbuf3=fen%10; ledbuf4=miao/10; ledbuf5=miao%10; displaylcd(0x02,0x00,ledbuf0); /*将时信息放在第2页的起始列*/ displaylcd(0x02,0x08,ledbuf1); displaylcd1