iar6-2.c

手把手教你学AVR单片机C程序设计实验程序

#include<iom16.h>			
#define uchar unsigned char	
#define uint unsigned int
__flash uchar SEG7[17]={0x3f,0x06,0x5b,0x4f,0x66,0x6d,0x7d,0x07,
		0x7f,0x6f,0x77,0x7c,0x39,0x5e,0x79,0x71,0x80};
__flash uchar ACT[8]={0xfe,0xfd,0xfb,0xf7,0xef,0xdf,0xbf,0x7f};				
//=============================
void delay_ms(uint k)			
{
    uint i,j;
    for(i=0;i<k;i++)
    {
       for(j=0;j<1140;j++);
    }
}
//=============================
void main(void)	
{				
uchar i;	
DDRA=0xff;			
DDRC=0xff;		
PORTA=0x00;		
PORTC=0xff;		
   while(1)		
   {			
   		   for(i=0;i<17;i++)	
   		   {					
		   PORTA=SEG7[i];	
   		   PORTC=ACT[0];			
   		   delay_ms(500);	
                   }
   		   //*****************
                   for(i=0;i<17;i++)	
   		   {					
		   PORTA=SEG7[i];	
   		   PORTC=ACT[1];			
   		   delay_ms(500);	
                   }
                   //*****************
                   for(i=0;i<17;i++)	
   		   {					
		   PORTA=SEG7[i];	
   		   PORTC=ACT[2];			
   		   delay_ms(500);	
                   }
                   //*****************
                   for(i=0;i<17;i++)	
   		   {					
		   PORTA=SEG7[i];	
   		   PORTC=ACT[3];			
   		   delay_ms(500);	
                   }
                   //*****************
                   for(i=0;i<17;i++)	
   		   {					
		   PORTA=SEG7[i];	
   		   PORTC=ACT[4];			
   		   delay_ms(500);	
                   }
                   //*****************
                   for(i=0;i<17;i++)	
   		   {					
		   PORTA=SEG7[i];	
   		   PORTC=ACT[5];			
   		   delay_ms(500);	
                   }
                   //*****************
                   for(i=0;i<17;i++)	
   		   {					
		   PORTA=SEG7[i];	
   		   PORTC=ACT[6];			
   		   delay_ms(500);	
                   }
                   //*****************
                   for(i=0;i<17;i++)	
   		   {					
		   PORTA=SEG7[i];	
   		   PORTC=ACT[7];			
   		   delay_ms(500);	
                   }
   }						
}