51單片機(jī)編寫的鬧鐘程序

1、#include<reg52.h>#defineucharunsignedchar#defineuintunsignedintsbitw1=P0A0;sbitw2=P0A1；sbitw3=P0A2;sbitw4=P0A3;/定義按鍵sbitk1=P0A4;sbitk2=P0A5；sbitk3=P0A6;sbitk4=P0A7；sbitfm=P3A4;ucharcodetable尸0x3f,0x06,0x5b,0x4f,0x66,0x6d,/時(shí)間校正函數(shù)/延遲函數(shù)鬧鐘設(shè)置函數(shù)鬧鐘檢測(cè)函數(shù)0x7d,0x07,0x7f,0x6f;voidtimetune();voiddelayms(ui

2、nt);voidkeyscan();voidkeyscan1();0-9十六進(jìn)制數(shù)共陰voiddisplay(uintanum,uintanum1,uintanum2,uintanum3);uint/顯示函數(shù)num0,num,num1,num2,num3,anum,anum1,anum2,anum3,temp,temp0,temp1,temp2,temp3,temp4,s,s1,s2,s3,s4;voidmain()TMOD=0x01;TH0=(65536-45872)/256;TL0=(65536-45872)/256;EA=1;ET0=1;TR0=1;while(1)/設(shè)置定時(shí)器0為工作方

3、式1(00000001)/裝初值50毫秒中斷一次開總中斷/開定日立器0終中斷/開定時(shí)器/中斷后進(jìn)入死循環(huán)時(shí)間永不停止計(jì)時(shí)timetune();keyscan();if(num0=20)num0=0;/調(diào)用時(shí)間設(shè)置函數(shù)調(diào)用鬧鐘設(shè)置函數(shù)num+;if(num=10)num1+;num=0;if(num1=6)num2+;num1=0;if(num2=10)和下面if必須分開，否則時(shí)間到24小時(shí)后不會(huì)清0繼續(xù)走下去num3+;num2=0;if(num3=2&&num2=4)當(dāng)時(shí)間走到24小時(shí)后自動(dòng)清0num3=0;num2=0;num=0;num1=0;if(temp0=1)/為了

4、防止鬧鐘時(shí)間顯示和正常時(shí)間顯示同時(shí)顯示出現(xiàn)數(shù)碼管顯示不清晰，所以display(s1,s2,s3,s4);寫兩個(gè)對(duì)立的if條件判斷語句(temp=1和temp!=1)來作為限制條件.if(temp0!=1)display(num,num1,num2,num3);/keyscan1();voiddisplay(uintanum,uintanum1,uintanum2,uintanum3)/時(shí)間顯示函數(shù)P2=tableanum3;w1=1;delayms；w1=0;P2=tableanum2;w2=1;delayms;w2=0;P2=tableanum1;w3=1;delayms；w3=0;P2=

5、tableanum;w4=1;delayms；w4=0;voidtimetune()/時(shí)間校正程序if(k4=0)當(dāng)每按下第四個(gè)鍵后會(huì)出現(xiàn)temp不同的值，然后用delayms(10);/不同的值作為不同的條件給四個(gè)數(shù)碼管加減值來校正時(shí)間if(k4=0)temp+;while(!k4);if(temp=1)if(k2=0)delayms(10);/按鍵時(shí)由于會(huì)產(chǎn)生機(jī)械振動(dòng)，為了準(zhǔn)確檢測(cè)到按鍵if(k2=0)/按下所以要延時(shí)num+;if(num=10)num=0;while(!k2);)if(temp=2)(if(k2=0)(delayms(10);if(k2=0)(num1+;if(num1

6、=6)num1=0;while(!k2);)if(temp=3)(if(k2=0)(delayms(10);if(k2=0)(num2+;if(num2=10)num2=0;while(!k2);)if(temp=4)(if(k2=0)(delayms(10);if(k2=0)(num3+;if(num3=3)num3=0;while(!k2);if(num3=2&&num2>=4)前面由于num2可以加到十，但是num2最多只能是4,所以當(dāng)num3力口到2時(shí)，num2只能最大為4,大于4后要清0num2=0;if(temp=5)temp=0;為了讓時(shí)間能夠反復(fù)校正，te

7、mp要100voidkeyscan1()/鬧鐘判斷程序if(s1=num&&s2=num1&&s3=num2&&s4=num3&&temp0=2)鬧鐘判斷條件temp0=0;當(dāng)鬧鐘判斷條件成立后，第一次鬧鐘響了后，為了能夠進(jìn)行第二次鬧鐘的設(shè)置，所以tempo要1#0fm=0;/蜂鳴器voidkeyscan()鬧鐘調(diào)整程序if(k3=0)delayms(10);if(k3=0)temp0+;while(!k3);/按鍵釋放if(k1=0)delayms(10);if(k1=0)s+;while(!k1);)if(s=1)(if(k2

8、=0)(delayms(10);if(k2=0)(s1+;if(s1=10)s1=0;while(!k2);)if(s=2)(if(k2=0)(delayms(10);if(k2=0)(s2+;if(s2=6)s2=0;while(!k2);)if(s=3)(if(k2=0)(delayms(10);if(k2=0)s3+;if(s3=10)s3=0;while(!k2);if(s=4)if(k2=0)delayms(10);if(k2=0)s4+;if(s4=3)s4=0;while(!k2);if(s4>=3&&s3>=5)/同時(shí)間調(diào)整程序一樣s3=0;if(s=5)s=0;voiddelayms(uintxms)uinti,j;for