xf2.c

4寸大数码管显示,采用共阳级,74595串联移码方式驱动2003达林顿芯片,用89c51的P1.0,P1.1,P1.2连接

#include <reg51.h>
/*unsigned char DATA_7SEG[10] = {0x3f,0x06,0x5b,0x4f,0x66,0x6d,0x7d,0x07,0x7f,0x6f};*/
	unsigned char DAT[11]={0xfd,0x60,0xda,0xf2,0x66,0xb6,0xbe,0xe0,0xfe,0xf6,0x00};
sbit P17=P1^7;
sbit P36=P3^6;
sbit P37=P3^7;
void delay(int ) ;
void out_disp(unsigned char);

void main()
{			
   delay(1000);
   out_disp(~DAT[1]);
   out_disp(~DAT[2]);
   out_disp(~DAT[3]);
  

   
   P37=0; P37=1;

   while (1){
    }
    
}
 

void delay(int time) {
int i,j;
for (i=0;i<time;i++) 
{
	for (j= 0;j<10;j++) ;} 
}

void out_disp(unsigned char dd) {
	unsigned char i,k;
	for (i=0;i<8;i++) {  k=dd & 0x01;P17=k;P36=1;dd=dd>>1;P36=0;	}
               }