cs15-2.c

主要是一些基本的C61的程序

#include <REG51.H>			
#define uint unsigned int		
#define uchar unsigned char	
uchar code SEG7[10]={0x3f,0x06,0x5b,0x4f,0x66,0x6d,0x7d,0x07,0x7f,0x6f};
uchar code ACT[8]={0xfe,0xfd,0xfb,0xf7,0xef,0xdf,0xbf,0x7f};
uchar status;
sbit OUT=P1^0;					
void delay(uint k);				
//***********************************
struct time					
{							
uchar sec;					
uchar msec;					
};							
struct time run_time,set_time;	
struct time *pt1,*pt2;			
//***********************************
void initial(void)				
{							
TMOD=0x11;					
TH0=-(10000/256);			
TL0=-(10000%256);			
TH1=-(1000/256);				
TL1=-(1000%256);			
ET0=1;ET1=1;TR1=1;			
	EA=1;					
}							
//***********************************
void time0(void) interrupt 1		
{							
TH0=-(10000/256);			
TL0=-(10000%256);			
run_time.msec++;			
if(run_time.msec>99){run_time.sec++;run_time.msec=0;}
if(run_time.sec>99){run_time.msec=0;run_time.sec=0;}
if((pt2->msec>0)||(pt2->sec>0))
{
	if((pt1->msec==pt2->msec)&&(pt1->sec==pt2->sec)){TR0=0;OUT=0;}
}
}							
//***********************************
void display(uchar cnt)
{
					switch(cnt)	
					{				
					case 0:P0=SEG7[run_time.msec%10];P2=ACT[0];break;
					case 1:P0=SEG7[run_time.msec/10];P2=ACT[1];break;
					case 2:P0=SEG7[run_time.sec%10];P2=ACT[2];break;
					case 3:P0=SEG7[run_time.sec/10];P2=ACT[3];break;
					case 4:P0=SEG7[set_time.msec%10];P2=ACT[4];break;
					case 5:P0=SEG7[set_time.msec/10];P2=ACT[5];break;
					case 6:P0=SEG7[set_time.sec%10];P2=ACT[6];break;
					case 7:P0=SEG7[set_time.sec/10];P2=ACT[7];break;
					default:break;
					 }			
}
//***********************************
void set_ms_display(uchar cnt)
{					switch(cnt)		
					{			
					case 0:P0=SEG7[run_time.msec%10];P2=ACT[0];break;
					case 1:P0=SEG7[run_time.msec/10];P2=ACT[1];break;
					case 2:P0=SEG7[run_time.sec%10];P2=ACT[2];break;
					case 3:P0=SEG7[run_time.sec/10];P2=ACT[3];break;
					case 4:P0=SEG7[set_time.msec%10]|0x80;P2=ACT[4];break;
					case 5:P0=SEG7[set_time.msec/10]|0x80;P2=ACT[5];break;
					case 6:P0=SEG7[set_time.sec%10];P2=ACT[6];break;
					case 7:P0=SEG7[set_time.sec/10];P2=ACT[7];break;
					default:break;
					}			
}
//********************************************
void set_s_display(uchar cnt)
{
					switch(cnt)		
					{	
					case 0:P0=SEG7[run_time.msec%10];P2=ACT[0];break;
					case 1:P0=SEG7[run_time.msec/10];P2=ACT[1];break;
					case 2:P0=SEG7[run_time.sec%10];P2=ACT[2];break;
					case 3:P0=SEG7[run_time.sec/10];P2=ACT[3];break;
					case 4:P0=SEG7[run_time.msec%10];P2=ACT[4];break;
					case 5:P0=SEG7[set_time.msec/10];P2=ACT[5];break;
					case 6:P0=SEG7[set_time.sec%10]|0x80;P2=ACT[6];break;
					case 7:P0=SEG7[set_time.sec/10]|0x80;P2=ACT[7];break;
					default:break;
					}
}
//******************************
void time1(void) interrupt 3		
{							
static uchar cnt;				
TH1=-(1000/256);				
TL1=-(1000%256);			
cnt++;						
if(cnt>7)cnt=0;				
	switch(status)			
	{						
	case 5:	display(cnt);break;		
	case 0:  display(cnt);break;	
	case 1:  set_ms_display(cnt);break;			
	case 2:  set_s_display(cnt);break;			
	default:break;				
	}							
}								
//****************************************
void key_s1(void)					
{					
	P3=0xff;						
	  if(P3==0xfb)				
	  {							
	    switch(status)			
	    {						
	    case 1:if(set_time.msec==99)set_time.msec=99;
		 		else set_time.msec++;break;
	    case 2:if(set_time.sec==99)set_time.sec=99;
		 		else set_time.sec++;break;	
	    default :break;			
	    }						
	  }							
}								
//****************************************
void key_s2(void)					
{								
	P3=0xff;						
	  if(P3==0xf7)				
	  {							
	    switch(status)			
	    {						
	    case 1:if(set_time.msec==0)set_time.msec=0;
		 		else set_time.msec--;break;
	    case 2:if(set_time.sec==0)set_time.sec=0;
		 		else set_time.sec--;break;
	    default :break;			
	    }						
	  }							
}								
//-----------------------------------------------
void key_s4(void)					
{								
	P3=0xff;						
		if(P3==0xdf){status++;}	
		if(status==3)status=1;		
		if(status==6)				
		{run_time.msec=0;		
		run_time.sec=0;			
		status=0;}				
}								
//*****************************************
void key_s3(void)					
{								
	P3=0xff;						
		if(P3==0xef){status=5;TR0=1;}
}								
//*****************************************
void main(void)					
{								
	pt1=&run_time;pt2=&set_time;	
	initial();						
	for(;;)						
	{							
		key_s1();				
		key_s2();				
		key_s3();				
		key_s4();				
		delay(300);				
	}							
}								
//****************************************
void delay(uint k)					
{								
uint data i,j;						
for(i=0;i<k;i++)					
{for(j=0;j<121;j++)					
{;}}								
}