xianshi.c

来自「单片机C语言15个实验附有原理图和程序 是我的课程作业 以经过实践验证」· C语言 代码 · 共 35 行

//key_164_led_2

#include <stdio.h>
#include <reg51.h>
#include <intrins.h>
unsigned char code ledk[17]={0x3f,0x06,0x5b,0x4f,0x66,0x6D,0x7d,0x07,0x7f,
0x6f,0x77,0x7c,0x39,0x5e,0x79,0x71,0x00};
unsigned char dispi,key;
sbit P37=P3^7;sbit clk=P0^7;sbit sda=P0^6;   sbit P23=P2^3;           //74LS164
void shift(unsigned char dx)
{static unsigned char d;
   unsigned char j=0;
    d=dx;
   	while(j<8)
	{if((d&0x80)!=0) sda=1;
       else  sda=0;
	   clk=0;clk=1;
	   d<<=1;j++;}  }

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

void main(void)
{while(1)
{ 
  P23=1;

shift(ledk[0]);P2=0x08 ;
 delay(1000);}
		   
 }