2008.c

74HC595控制4个8段数码管显示2008,初次上传

#include<regx52.h>
#include<intrins.h>
#define uchar unsigned char
#define uint unsigned int

uint DAT[]={0xc0,0xf9,0xa4,0xb0,
			0x99,0x92,0x82,0xf8,
			0x80,0x90,0x88,0x83,
			0xc6,0xa1,0x86,0x8e,0xff};
uint CH[]={0xfe,0xfd,0xfb,0xf7};
sbit DS1=P1^5;
sbit ST1=P1^4;
sbit SH1=P1^3;

sbit DS0=P1^2;
sbit ST0=P1^1;
sbit SH0=P1^0;

uchar temp0,temp1;

void delay(void)
{
	uchar i,j;
	for(i=10;i>0;i--) 
  		for(j=248;j>0;j--); 
}
/*位选*/
void WR0(void)
{
	uchar j;
	for(j=0;j<8;j++)
	{
		temp0=temp0<<1;
		DS0=CY;
		SH0=1;
		_nop_();
		_nop_();
		SH0=0;
	}
}

void OUT0(void)
{		
		ST0=0;
		_nop_();
		_nop_();
		ST0=1;
		_nop_();
		_nop_();
		_nop_();
		ST0=0;
}
/*位显*/
void WR1(void)
{
	uchar j;
	for(j=0;j<8;j++)
	{
		temp1=temp1<<1;
		DS1=CY;
		SH1=1;
		_nop_();
		_nop_();
		SH1=0;
	}
}

void OUT1(void)
{		
		ST1=0;
		_nop_();
		_nop_();
		ST1=1;
		_nop_();
		_nop_();
		_nop_();
		ST1=0;
}

main()
{
	ST0=0;
	SH0=1;
	
	ST1=0;
	SH1=1;
	while(1)
	{
		
		temp1=DAT[2];
		WR1();
		OUT1();		
		temp0=0x07;
		WR0();
		OUT0();
		delay();

		temp1=DAT[0];
		WR1();
		OUT1();		
		temp0=0x0b;
		WR0();
		OUT0();
		delay();

		temp1=DAT[0];
		WR1();
		OUT1();		
		temp0=0x0d;
		WR0();
		OUT0();
		delay();

		temp1=DAT[8];
		WR1();
		OUT1();		
		temp0=0x0e;
		WR0();
		OUT0();
		delay();


	}
}