基于單片機(jī)的電子鐘C語(yǔ)言程序

1、基于51單片機(jī)的電子鐘C語(yǔ)言程序#include<reg51.h>#include<absacc.h>#define uchar unsigned char#define uint unsigned int/*七段共陰管顯示定義*/ uchar code dispcode =0x3F,0x06,0x5B,0x4F,0x66,0x6D,0x7D,0x07,0x7F,0x6F, 0xBF,0x86,0xCB,0xCF,0xEF,0xED,0xFD,0x87,0xFF,0xDF;/*定義并初始化變量*/uchar seconde=0;uchar minite=0;uchar

2、hour=12;uchar mstcnt=0;sbit P1_0=P10; / second 調(diào)整定義sbit P1_1=P11; /minite調(diào)整定義sbit P1_2=P12; /hour調(diào)整定義/*函數(shù)聲明*/void delay(uint k ); /延時(shí)子程序void delay1(uchar h );void time_pro( ); /時(shí)間處理子程序void display( ); /顯示子程序void keyscan( ); /鍵盤掃描子程序/*/*延時(shí)子程序*/*/void delay1 (uchar h)uchar j;while(h-)!=0) for(j=0;j<

3、;125;j+) ; void delay (uint k)uint a,b,c;for(c=k;c>0;c-) for(b=38;b>0;b-) for(a=130;a>0;a-); /*/*時(shí)間處理子程序*/*/void time_pro( void) if(seconde=60) /秒鐘設(shè)為60進(jìn)制 seconde=0; minite+; if( minite=60) /分鐘設(shè)為60進(jìn)制 minite=0; hour+; if(hour=24) /時(shí)鐘設(shè)為24進(jìn)制 hour=0; /*/* 顯示子程序*/*/void display(void) P2=0xfe; P0=

4、dispcodehour/10; /顯示小時(shí)的十位 delay1(4); P2=0xfd; P0=(dispcode(hour%10)|0X80; /顯示小時(shí)的個(gè)位 delay1(4); P2=0xfb; P0=dispcodeminite/10; /顯示分的十位 delay1(4); P2=0xf7; P0=(dispcodeminite%10)|0X80; /顯示分的個(gè)位 delay1(4); P2=0xef; P0=dispcodeseconde/10; /顯示秒的十位 delay1(4); P2=0xdf; P0=dispcodeseconde%10; /顯示秒的個(gè)位 delay1(4

5、); /*/*鍵盤掃描子程序*/*/void keyscan (void) if(P1_0=0) /按鍵1秒的調(diào)整 delay(2); if(P1_0=0) /delay(300); seconde+; if(seconde=60) seconde=0; if(P1_1=0) /按鍵2分的調(diào)整 delay(2); if(P1_1=0) /delay(300); minite+; if(minite=60) minite=0; if(P1_2=0) /按鍵3小時(shí)的調(diào)整 delay(2); if(P1_2=0) /delay(300); hour+; if(hour=24) hour=0; void timer0(void) interrupt 1 using 0 /定時(shí)器0方式1，50ms中斷一次 TH0=0x3c;TMOD = 0x11; mstcnt+; if(mstcnt=20) seconde+; mstcnt=0; /注意點(diǎn)。對(duì)計(jì)數(shù)單元的清零十分的重要，本次調(diào)試中就是 /因?yàn)楹雎粤诉@一點(diǎn)，給我早成了很大的被動(dòng)。 /*/*主函數(shù)*/*/void main(void) P1=0xff; /初始化p1口，全設(shè)為1 TMOD = 0x11; /time0為定時(shí)器，方式1TH0=0x3c; /預(yù)置計(jì)數(shù)初值TL