cs14-2.c

《手把手教你学单片机的C程序设计》及实验程序

#include <REG51.H>		
#define uchar unsigned char		
#define uint unsigned int
/**************************************************/		
void delay(uint k)					
{								
uint i,j;							
for(i=0;i<k;i++){					
for(j=0;j<121;j++)					
{;}}								
}								
/******************************************************/
void main(void)					
{								
uchar *pt,i;
uchar code SEG7[10]={0x3f,0x06,0x5b,0x4f,0x66,0x6d,0x7d,0x07,0x7f,0x6f};						
pt=SEG7;						
	for(i=0;i<10;i++)				
	{P0=SEG7[i];P2=0xfe;					
	delay(500);}					
//===========================
	P0=0x00;						
	delay(2000);					
//===========================
	for(i=0;i<10;i++)				
	{P0=*(pt+i);P2=0xfe;					
	delay(500);}					
	P0=0x00;						
//===========================
while(1);							
}