单片机C语言可调时钟程序.doc

/*CMS所做的可调时钟程序*/#includechar led=0x3f,0x06,0x5b,0x4f,0x66,0x6d,0x7d,0x07,0x7f,0x6f;/数码管显示数字unsigned int i=0,j=0,k=0;unsigned char time=0,sec=0,min=0,hour=0,keyy=0;sbit key1=P20;sbit key2=P21;sbit key3=P22;unsigned char keyn; void display(unsigned char sec,unsigned char min,unsigned char hour);void delay(unsigned int j)/延时函数 for(j=0;j200;j+);void display(unsigned char sec,unsigned char min,unsigned char hour)/显示函数 P3=0xfe; P1=ledsec%10;/珊哥个秒 delay(10); P3=0xfd; P1=ledsec/10;/珊哥十秒 delay(10); P3=0xfb; P1=0x40; delay(10); P3=0xf7; P1=ledmin%10;/珊哥个分 delay(10); P3=0xef; P1=ledmin/10;/珊哥十分 delay(10); P3=0xdf; P1=0x40; delay(10); P3=0xbf; P1=ledhour%10;/珊哥个时 delay(10); P3=0x7f; P1=ledhour/10;/珊哥十时 delay(10);void key()/开关检测 if(key1=0)/检测开关1 delay(10);/开关抖动if(key1=0) keyn+; while(!key1)display(sec,min,hour); if(keyn=1)/确认开关已弹起 TR0=0; if(keyn=2) TR0=0; if(keyn=3) TR0=0; if(keyn=4) keyn=0; TR0=1; if(keyn!=0) if(key2=0)/检测开关2 delay(10); if(key2=0) while(!key2)display(sec,min,hour); if(keyn=1) hour+;/调测小时 if(hour=24) hour=0; display(sec,min,hour); if(keyn=2) min+;/调测分钟 if(min=60) min=0; display(sec,min,hour); if(keyn=3) sec+;/调测秒 if(sec=60) sec=0; display(sec,min,hour); if(key3=0)/检测开关3 delay(10); if(key3=0) while(!key3)display(sec,min,hour); if(keyn=1) hour-;/调测小时 if(hour=-1) hour=23; display(sec,min,hour); if(keyn=2) min-;/调测分钟 if(min=-1) min=59; display(sec,min,hour); if(keyn=3) sec-;/调测秒 if(sec=-1) sec=59; display(sec,min,hour); void Timer1 (void) interrupt 1 using 1/中断函数 TH0=-50000/256; TL0=-50000%256; time+; if(time=20) time=0; sec+; if(sec=60) sec=0; min+; if(min=60) min=0; hour+; if(hour=24) hour=0; void main() EA=1;/开中断 ET0=1; TMOD=0X01;/定时器方