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第四次開始按下kgnxz后，調(diào)整秒分時(shí)沒有反應(yīng)，是不是要加清零，我在鍵盤掃描的最后加過，沒反應(yīng)
單片機(jī)源程序如下:
- #include<reg52.h>
- #include<intrins.h>
- #include<absacc.h>
- sbit kgnxz=P3^0; //功能選擇鍵，按一次設(shè)定時(shí)間，按兩次設(shè)定鬧鐘時(shí)間，按三次又顯示時(shí)間表
- sbit ksec=P3^1;//調(diào)整秒
- sbit kmin=P3^2;//調(diào)整分
- sbit khour=P3^3;//調(diào)整時(shí)
- sbit kzh=P3^4;//24與12小時(shí)制轉(zhuǎn)換
- sbit bear=P1^0;//蜂鳴器控制口
- unsigned char secshi=0,secge=0,minshi=0,minge=0,hourshi=0,hourge=0,flag=0,//flag是按鍵的計(jì)數(shù)
- secshi1=0,secge1=0,minshi1=0,minge1=0,hourshi1=0,hourge1=0;//定義存儲時(shí)間和鬧鐘時(shí)分秒的個(gè)位和十位
- unsigned int num=0,sec=0,min=0,hour=0,sec1=30,min1=0,hour1=1, num1=0;//定義時(shí)間和鬧鐘的時(shí)分秒
- unsigned char code table[10]={0x3f,0x06,0x5b,0x4f,0x66,0x6d,0x7d,0x07,0x7f,0x6f};//數(shù)碼管段控口
- void keyscan();//鍵盤掃描函數(shù)
- void display();//時(shí)鐘顯示函數(shù)
- void display1();//鬧鐘顯示函數(shù)
- void clock();//鬧鐘函數(shù)即蜂鳴器函數(shù)
- /***延時(shí)函數(shù)****/
- void delay(unsigned char z)
- {unsigned char x,y;
- for(x=z;x>0;x--)
- for(y=255;y>0;y--);
- }
- /***中斷函數(shù)****/
- void time0() interrupt 1
- {num++;
- TH0=(65536-50000)/256;
- TL0=(65536-50000)%256;
- if(num==20)
- {num=0;
- sec++;
- if(sec==60)
- {sec=0;
- min++;
- if(min==60)
- {min=0;
- hour++;
- if(hour==24)
- {hour=0;
- }
- }
- }
- display(); }
- }
- /******時(shí)鐘顯示函數(shù)******/
- void display()
- {
- secge=sec%10;
- secshi=sec/10;
- minge=min%10;
- minshi=min/10;
- hourge=hour%10;
- hourshi=hour/10;
- P2=0xfe;
- P0=table[secge];
- delay(5);
- P2=0xfd;
- P0=table[secshi];
- delay(5);
- P2=0xfb;
- P0=0x40;
- delay(5);
- P2=0xf7;
- P0=table[minge];
- delay(5);
- P2=0xef;
- P0=table[minshi];
- delay(5);
- P2=0xdf;
- P0=0x40;
- delay(5);
- P2=0xbf;
- P0=table[hourge];
- delay(5);
- P2=0x7f;
- P0=table[hourshi];
- delay(5);
- }
- /*****鬧鐘顯示函數(shù)****/
- void display1()
- {
- secge1=sec1%10;
- secshi1=sec1/10;
- minge1=min1%10;
- minshi1=min1/10;
- hourge1=hour1%10;
- hourshi1=hour1/10;
- P2=0xfe;
- P0=table[secge1];
- delay(10);
- P2=0xfd;
- P0=table[secshi1];
- delay(15);
- P2=0xfb;
- P0=0x40;
- delay(15);
- P2=0xf7;
- P0=table[minge1];
- delay(15);
- P2=0xef;
- P0=table[minshi1];
- delay(15);
- P2=0xdf;
- P0=0x40;
- delay(15);
- P2=0xbf;
- P0=table[hourge1];
- delay(15);
- P2=0x7f;
- P0=table[hourshi1];
- delay(15);
- }
- /*****鍵盤掃描********/
- void keyscan()
- {if(kgnxz==0) //功能選擇鍵是否按下
- { delay(10);//延時(shí)消抖
- if(kgnxz==0)//再次判斷鍵是否按下
- {flag++;} //計(jì)數(shù)，功能選擇鍵按鍵次數(shù)加一
- while(!kgnxz);} //釋放鍵
- if(flag==1)//功能選擇鍵
- {if(ksec==0)//秒調(diào)整鍵
- {delay(10);//延時(shí)消抖
- if(ksec==0)//再次判斷鍵是否按下
- {sec++;//秒加加
- if(sec>=60)//如果秒大于60
- sec=0;//秒清零
- }
- while(ksec==0)//釋放鍵
- display();}
- if(kmin==0)
- {delay(100);
- if(kmin==0)
- {min++;
- if(min>=60)
- min=0;
- }
- while(kmin==0)
- display();
- }
- if(khour==0)
- {delay(100);
- if(khour==0)
- {hour++;
- if(hour==24)
- hour=0;
- }
- while(khour==0)
- display();
- }
- }
- if(flag==2)//鬧鐘調(diào)整
- {if(ksec==0)
- {delay(50);
- if(ksec==0)
- {sec1++;
- if(sec1==60)
- sec1=0;}
- while(!ksec)
- {display1();delay(50);}
- }
- if(kmin==0)
- {delay(50);
- if(kmin==0)
- {min1++;
- if(min1==60)
- min1=0;}
- while(!kmin)
- {display1();}
- }
- if(khour==0)
- {delay(50);
- if(khour==0)
- {hour1++;
- if(hour1==24)
- hour1=0;}
- while(!khour)
- {display1();} } }}
- /*****蜂鳴器*********/
- void clock()
- { unsigned int i;
- for(i=1000;i>0;i--)
- {bear=1;
- P1=0xfe;
- delay(10);
- bear=0;
- P1=0xff;
- delay(10);}}
- /*****24轉(zhuǎn)12小時(shí)制*********/
- void to12()
- {if(hour>=12)
- {hour=hour-12;}
- if(hour1>=12)
- {hour1=hour1-12;}}
- /*****主函數(shù)********/
- main()
- {TMOD=0x01;
- TH0=(65536-50000)/256;
- TL0=(65536-50000)%256;
- EA=1;ET0=1;TR0=1;
- while(1)
- {
- keyscan();display();
- if(flag==1) {keyscan(); display();}
- if(flag==2) {keyscan(); display1();}
- if(flag==3) {display();}
- if((hour==hour1)&&(min==min1)&&(sec==sec1))
- {clock();}//鬧鐘設(shè)定時(shí)間與時(shí)鐘時(shí)間相等，調(diào)用蜂鳴器函數(shù)
- if(kzh==0){to12();}
- }
- }
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