shownum.c

来自「本人设计的电磁脉冲油泵的控制程序」· C语言 代码 · 共 56 行

#include <REG52.H>
#include<stdio.h>
#include<intrins.h>
#include<string.h>
#include<IOsetup.h>


extern void delay(unsigned int t);

unsigned char DigDsp[2]={0,0};


void DISPLAY(unsigned char x)
{
switch(x)
      {
      case 0:
	         P1=0x81;break;
      case 1:
	         P1=0xf3;break;
      case 2:
	         P1=0x49;break;
      case 3:
	         P1=0x61;break;
      case 4:
	         P1=0x33;break;
      case 5:
	         P1=0x25;break;
      case 6:
	         P1=0x05;break;
      case 7:
	         P1=0xf1;break;
      case 8:
             P1=0x01;break;
      case 9:
	         P1=0x21;break;
      default :
	         P1=0xff;break;
      }
}

void ShowNum(unsigned char number)     
{
DigDsp[1]=number/10;
while (number>=10){ number-=10;}
DigDsp[0]=number;
enable0=1;
enable1=1;
if(DigDsp[1]>0){enable0=0;enable1=1;DISPLAY(DigDsp[1]);delay(300);}
enable0=1;
enable1=0;
DISPLAY(DigDsp[0]);
delay(300);
}