C语言实现数字时钟的程序.doc

求89c52单片机 C语言实现数字时钟程序悬赏分：0 - 解决时间：2009-8-30 16:12 希望朋友们帮忙，给一下STC89C52单片机 C语言实现数字时钟的程序，初学单片机，请多关照 提问者： 爱在9黎明1971 - 一级最佳答案#include AT89X52.H#include intrins.h#define REST P3_4#define SCLK P3_7#define DATA P3_6 unsigned char code displayCode=0xc0,0xf9,0xa4,0xb0,0x99, 0x92,0x82,0xf8,0x80,0x90;unsigned char code controladdress=0x80,0x82,0x84,0x86,0x88, 0x8a,0x8c,0x8e,0x90,0xbe;unsigned char hour,minute,second;unsigned char day,month,week,year;unsigned char clockhour,clockminute;unsigned int num;unsigned char select,oneminute;bit bdata modeselect;void delay();void writetime();void display(unsigned char temp,unsigned char mode);void sound() while(num2000) P3_0=0; P3_0=1;void initial() P0=0; TMOD=0x22; IE=0xCF; IT0=1; IT1=1; T2CON=0; RCAP2L=0xf0; RCAP2H=0x1f; TH2=0x1c; TL2=0xf0; IP=0X06; TH0=0x48; TL0=0x48; TH1=0X48; TR0=1; PCON=0x01; hour=12; minute=0; second=0; num=0; select=0; clockhour=12; clockminute=0; modeselect=0; day=16; month=8; week=7; year=9;void interrupt0()interrupt 0 using 3 TR1=1; select+; if(select=8) select=0; if(select=1) ET2=1; oneminute=second-1;void timer0()interrupt 1 using 3 num+; if(num=5000) num=0; second+; if(second=60) minute+; second=0; if(minute=60) hour+; minute=0; if(hour=24) hour=0;void interrupt1()interrupt 2 using 3 oneminute=second-1; switch(select) case 4: hour+; if(hour=24) hour=0; break; case 5: minute+; if(minute=60) minute=0; break; case 6: second+; if(second=60) second=0; break; case 2: clockhour+; if(clockhour=24) clockhour=0; break; case 3: clockminute+; if(clockminute=60) clockminute=0; break; default: modeselect=0; ET2=!ET2; break; void timer1()interrupt 3 using 3 if(select) if(second=oneminute) select=0; TR1=0; void timer2()interrupt 5 using 3 sound(); TF2=0; if(minute!=clockminute|hour!=clockhour) TR2=0;void delay() unsigned char i=255; while(-i) ; void display(unsigned char temp,unsigned char mode) if(temp=4|temp=2) P0=0; else P0=1; if(mode) P1=displayCodehour/10; else P1=displayCodeclockhour/10; delay(); if(temp=4|temp=2) P0=0; else P0=2; if(mode) P1=displayCodehour%10; else P1=displayCodeclockhour%10; delay(); if(temp=1|temp=2|temp=3) P0=0; else P0=4; P1=0xbf; delay(); if(temp=5|temp=3) P0=0; else P0=8; if(mode) P1=displayCodeminute/10; else P1=displayCodeclockminute/10; delay(); if(temp=5|temp=3) P0=0; else P0=16; if(mode) P1=displayCodeminute%10; else P1=displayCodeclockminute%10; delay(); if(temp=1|temp=2|temp=3) P0=0; else P0=32; P1=0xbf; delay(); if(temp=6) P0=0; else P0=64; if(mode) P1=displayCodesecond/10; else P1=displayCode0; delay(); if(temp=6) P0=0; else P0=128; if(mode) if(ET2) P1=displayCodesecond%10+128; else P1=displayCodesecond%10; else P1=displayCode0; delay();void write(unsigned char Bdata) unsigned char i=8; for(;i0;i-) if(Bdata0x01) DATA=1; else DATA=0; SCLK=1; SCLK=0; Bdata=1; void writedata(unsigned char address,Bdata) REST=0; SCLK=0; _nop_(); REST=1; write(address); write(Bdata); REST=0;unsigned char read(unsigned char Bdata) unsigned char tdata=0,i=8; REST=0; SCLK=0; _nop_(); REST=1; write(Bdata); for(;i0;i-) tdata=1; if(DATA) tdata=tdata|0x80; else tdata|=0x00; SCLK=1; SCLK=0; return tdata;void writetime() unsigned char i,time,temp3; temp0=second; temp1=minute; temp2=hour; for(i=0;i3;i+) time=tempi%10; time|=(tempi/10)4; writedata(controladdressi,time); void writeyear() unsigned char i,year0,temp4; temp0=day; temp1=month; temp2=week; temp3=year; for(i=0;i4;i+) year0=tempi%10; year0|=(tempi/10)4; writedata(controladdressi+3,year0); void readtime() unsigned char i,time,temp3; for(i=0;i3;i+) tempi=read(1+controladdressi); time=tempi0x0f; time+=(tempi4)*10; tempi=time; second=temp0; minute=temp1; hour=temp2;void readyear() unsigned char i,year0,temp4; for(i=0;i4;i+) tempi=read(1+controladdressi+3); year0=tempi0x0f; year0+=(tempi4)*10; tempi=year0; day=temp0; month=temp1; week=temp2; year=temp3;void main() initial(); sound(); writedata(0x8e,0x00); writedata(0x84,0x12); writedata(0x8f,0x00); readtime(); writeyear(); readyear(); while(1) switch(select) case 0: display(0,1); break; case 1: if(num=2500) display(1,0); else display(0,0); break; case 2: if(num=2500) display(2,0); else display(0,0); break; case 3: if(num=2500) display(3,0); else display(0,0); break; case 4: if(num=2500) display(4,1); else display(0,1); break; case 5: if(num=2500) display(5,1); else display(0,1); break; case 6: if(num=2500) display(6,1); else display(0,1); break; case 7: writ