用74HC573实现可调时钟 - 副本.doc

#include#include#define uchar unsigned char #define uint unsigned int sbit sda=P23;sbit scl=P22;sbit dula=P10;sbit wela=P11;sbit key1=P12;sbit key2=P13;sbit key3=P14;sbit key4=P15;sbit key5=P16;sbit key6=P17;bit flag;uchar code duan=0x3f,0x06,0x5b,0x4f,0x66,0x6d,0x7d,0x07,0x7f,0x6f,0x40;uchar code wei=0xfe,0xfd,0xfb,0xf7,0xef,0xdf,0xbf,0x7f;unsigned long int sum1,sum2,sum3,sum1_shi,sum1_ge,sum2_shi,sum2_ge,sum3_shi,sum3_ge;unsigned long int num1,num2,num3,num4;/unsigned long int c_1,c_2,c_3,c_4,c_5,c_6,c_7,c_8;/void delay()/_nop_();_nop_();_nop_();_nop_();/_nop_();_nop_();_nop_();_nop_();/void delay1()/ uint i=30000;/ while(i-);/void start()/ sda=1;/ delay();/ scl=1;/ delay();/ sda=0;/ delay();/void stop()/ sda=0;/ delay();/ scl=1;/ delay();/ sda=1;/ delay();/void ack()/ uchar i;/ scl=1;/ delay();/ while(sda=1)&i200) i+;/ scl=0;/ delay();/void noack()/ sda=1;/ delay();/ scl=1;/ delay();/ scl=0;/ delay();/void init()/ sda=1;/ scl=1;/void ii2wr_byte(uchar dat)/ uchar i;/ scl=0;/ for(i=0;i8;i+)/ / if(dat&0x80)/ sda=1;/ else/ sda=0;/ / dat=dat1;/ delay();/ scl=1;/ delay();/ scl=0;/ delay();/ / sda=1;/ delay();/uchar ii2re_byte()/ uchar i;/ uchar dat;/ scl=0;/ delay();/ sda=1;/ delay();/ for(i=0;i8;i+)/ / scl=1;/ delay();/ dat=dat0;i-)/ for(j=110;j0;j-);/void delay10ms() flag=1; if(flag=1) if(num4=10) num4=0;flag=0; void display(uchar a,uchar b) dula=1; P2=duana; dula=0; P2=0xff; wela=1; P2=weib; wela=0; delay10ms();void key() if(key1=0) delay10ms();if(key1=0) sum1+;/ c_wr(7,sum1); if(sum1=60) sum1=0;/ c_wr(7,sum1); if(sum2=60) sum2=0;/ c_wr(10,sum2); while(!key1); if(key2=0) delay10ms();if(key2=0) sum2+;/ c_wr(10,sum2); if(sum2=60) sum2=0;/ c_wr(10,sum2); if(sum3=12) sum3=0;/ c_wr(8,sum3); while(!key2); if(key3=0) delay10ms();if(key3=0) sum3+;/ c_wr(8,sum3); if(sum3=12) sum3=0;/ c_wr(8,sum3); while(!key3); if(key4=0) delay10ms(); if(key4=0) TR0=TR0; if(TR0=1) num3=sum2*1200+sum1*20;/ c_wr(2,num3); num2=sum1*20;/ c_wr(5,num2); while(!key4); if(key5=0) delay10ms(); if(key5=0) if(sum1=0) sum1=60;/ c_wr(7,sum1); sum1-;/ c_wr(7,sum1); while(!key5); if(key6=0) delay10ms(); if(key6=0) if(sum2=0) sum2=60;/ c_wr(10,sum2); sum2-;/ c_wr(10,sum2); while(!key6); void main() TMOD=0x01; TH0=(65536-50000)/256; TL0=(65536-50000)%256; TH1=(65536-1000)/256; TL1=(65536-1000)%256; EA=1; ET0=1; ET1=1;/ num3=c_re(2);/ num1=c_re(4);/ num2=c_re(5);/ sum1=c_re(7);/ sum2=c_re(10);/ sum3=c_re(8); while(1) key();if(num1=20)num1=0;/c_wr(4,num1);sum1+;/c_wr(7,sum1);if(sum1=60)sum1=0;/c_wr(7,sum1);if(num2=1200) num2=0;/ c_wr(5,num2); sum2+;/ c_wr(10,sum2); if(sum2=60) sum2=0;/ c_wr(10,sum2); if(num3=72000) num3=0;/ c_wr(2,num3); sum3+;/ c_wr(8,sum3); if(sum3=12) sum3=0;/ c_wr(8,sum3); sum1_shi=sum1/10;sum1_ge=sum1%10;sum2_shi=sum2/10;sum2_ge=sum2%10;sum3_shi=sum3/10;sum3_ge=sum3%10;display(sum1_ge,7);display(sum1_shi,6);display(10,5);display(sum2_ge,4);display(sum2_shi,3);display(10,2);display(sum3_ge,1);display(sum3_shi,0); void xx() interrupt 1 TH0=(65536-50000)/256; TL0=(65536-50000)%256; num1+;/