51单片机做可调时钟(带秒表)另附proteus仿真图

1、承*穴*4(穴*4(穴*单片根I课程设计承沐穴*信息学院09级电一承沐穴*相卩佥9沐*穴*穴*穴承*穴*穴*)(*穴*穴*/#include#defineucharunsignedchar#defineuintunsignedintsbitmenu=P3A2;sbitreset=PlAO;sbitadd_min=PlAl;sbitadd_hour=PlA2;跑表清零，秒表状态下也是清零调分时加一调时时加一，秒表时按下不动跑表，松开暂停，再次按下继续sbitLATCH1=P2A2;定义锁存使能端I丨段锁存sbitLATCH2=P2A3;/位锁存uinta,b,j;ucharTempData8;h

2、oucminec,时钟hourO,minO.secO,/秒表k;状态转换标志ucharcodeweima=0 x7f,0 xbf/0 xdf/0 xef,0 xf7,0 xfb,0 xfd/0 xfe;ucharcodeduanma=0 x3f/0 x06/0 x5b,0 x4f,0 x66,0 x6d/0 x7d/0 x07/0 x7f/0 x6f;函数声明*/voidkeyscanl();voidkeyscan2();voidinit();voiddelay(ucharz);voiddisplay(ucharhououcharminzucharsec);J；函数*/voidmain()in

3、it();while(TRI)display(hourO,minO,secO);/时钟表显示while(k)if(k=l)TR0=0;keyscan2();display(hour;minsec);if(k=2)keyscanl();display(hourO,minO,secO);*11/数*穴*p*voidinit()b=0;hourO=12;min0=0;sec0=0;hour=0;min=0;sec=0;TMOD=Oxll;TH0=(65536-5000)/256;TL0=(65536-5000)%256;THl=(65536-50000)/256;TLl=(65536-50000)%

4、256;定时器0工作于方式1；赋初值EA=1;EXO=1;秒表中断ETO=1;ET1=1;IT0=l;边沿触发方式IT1=1;PXO=1;PX1=1;TRO=O;TR1=1;初始，秒表不工作时钟一开始工作定时器0中断*/voidtimerO_int()interrupt1秒表TH0=(65536-5000)/256;TL0=(65536-5000)%256;a+;if(a=2)a=0;sec+;if(sec=100)亳秒级秒分sec=0;min+;if(min=60)min=0;hour+;if(hour=60)hour=0;外部中断0中断函数*/voidexO_int()interrupt0

5、if(k=3)状态变换1（时）2（秒表）3（调时）1定时器1中断*/控制时钟工作voidtimerlnt()interrupt3THl=(65536-50000)/256;TLl=(65536-50000)%256;b+;if(b=20)b=0;secO+;if(sec0=60)secO=O;minO+;if(min0=60)min0=0;hourO+;if(hour0=24)hour0=0;/*lllj*voidkeyscanl()/display(hourOzminO,secO);if(reset=O)delay(lO);if(reset=O)secO=O;min0=0;hourO=12;

6、if(add_min=O)delay(lO);if(add_min=O)minO+;if(min0=60)min0=0;while(!add_min)display(hourOzminO,secO);if(add_hour=0)delay(lO);if(add_hour=0)hourO+;if(hour0=24)hourO=0;while(!add_hour)display(hourO,minOzsecO);*|2*voidkeyscan2()if(reset=O)delay(lO);if(reset=O)hour=0;min=0;sec=0;if(add_hour=0)delay(lO);if(add_hour=0)TRO二TRO;while(!add_hour)display(hour/min/sec);*穴*承*承*穴*扌描显示函数voiddisplay(ucharhououcharminzucharsec)unsignedchari;TempData0=duanmahour/10;TempDatal=duanmahour%10;TempData2=0 x40;TempData二duanmamin/：10;用于显示分TempData4=duanmamin%10;Temp