单片机万年历电子钟设计报告含电路图和源程序

update_disbuf(0x50,\pro_display();

lcd_pos(0x49);break; case 8:min++; if (min>59) min=0;

update_disbuf(0x50,\pro_display();

lcd_pos(0x4c);break; case 9:sec++; if (sec>59) sec=0;

update_disbuf(0x50,\pro_display();

lcd_pos(0x4f);break; default: break ; } }

//Timer1中断处理程序,产生报警的声音 void timer1() interrupt 3 {

TH1=0xff; TL1=0x00; SPK=~SPK; }

//外部中断INT1中断处理程序,停止报警声音 void int1() interrupt 2 {

if(TR1) TR1=0; }

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