595led.c

用LED驱动数码管

#include <REG51.h>
//#include <intrins.h>
#define	uchar unsigned char
#define	uint unsigned int
uchar code bseg[16]={0xf0,0xf1,0xf2,0xf3,0xf4,0xf5,0xf6,0xf7,0xf8,0xf9,0xfa,0xfb,0xfc,0xfd,0xfe,0xff};//列驱动选码(低位)
/*uchar SEGx[32]={0x08,0x24,0x88,0x33,0x78,0x2C,0x0F,0x23,
                0xC8,0x28,0x08,0x70,0x20,0x00,0xF8,0xFF,
                0x4F,0x22,0x48,0x22,0x49,0x22,0xFE,0x3F,
                0x48,0x22,0x48,0x22,0x08,0x20,0x00,0x00};/*"雄",0*/



uchar SEGx[32]={0x00,0x00,0xFC,0x07,0x44,0x04,0x44,0x04,
                0x44,0x04,0xFC,0x07,0x10,0x00,0x90,0x00,
                0x10,0x03,0x10,0x40,0x10,0x80,0xFF,0x7F,
                0x10,0x00,0x10,0x00,0x10,0x00,0x00,0x00};/*"时",0*/

sbit LEDshclk=P2^0;
sbit LEDdata=P2^1;
sbit LEDstclk=P2^2;

void delay(void)		
{					
	unsigned int i,j;		
	for(i=0;i<1;i++)		
	{				
		for(j=0;j<5;j++)
		{;}			
	}				
}	
void hc164send(uchar c)
{ 
	uchar temp;
	for(temp=0;temp<8;temp++)
    {
	 if(c &0x80)
             LEDdata = 1;
	   else  LEDdata = 0;

	   LEDshclk=0;
	   delay();
	   LEDshclk=1;
	   delay();
	   c<<=1;
    }
}
void hc595out(void )
 {LEDstclk=0;
  delay();
  LEDstclk=1;
  delay();
  }
void main(void)					
{uchar n;					
	while(1)						
	{
	  
	  for(n=0;n<16;n++)	
		 {
	      P1=bseg[n];
		  hc164send(SEGx[2*n+1]);
          hc164send(SEGx[2*n]);
		  hc595out();
  		  delay(); //delay();	 delay(); // delay();	   delay();
		  }
	 }					
	
	   
 }