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標(biāo)題: 用獨立按鍵的走馬燈動態(tài)顯示單片機程序 [打印本頁]

作者: kscheang 時間: 2021-1-14 00:29
標(biāo)題: 用獨立按鍵的走馬燈動態(tài)顯示單片機程序
#include "reg52.h"

typedef unsigned int u16;
typedef unsigned char u8;

sbit LSA=P2^2;
sbit LSB=P2^3;
sbit LSC=P2^4;
sbit K1=P1^0;

u8 i=0;
u8 j=0;
u8 code smgduan[17]={0x3f,0x06,0x5b,0x4f,0x66,0x6d,0x7d,0x07,
                  0x7f,0x6f,0x77,0x7c,0x39,0x5e,0x79,0x71};

void delay(u16 i)
{
      while(i--);
}

void keypush()
{
      if (K1==0)
      {
            delay(1000);
            if (K1==0)
            {
                     j++;
            }
      while(!K1);
      }
}

void DigDisplay()
{
      switch(j)
{
         case(0):
            case(15):
                  LSA=0;LSB=0;LSC=0; break;
         case(1):
            case(14):
                  LSA=1;LSB=0;LSC=0; break;
         case(2):
            case(13):
                  LSA=0;LSB=1;LSC=0; break;
         case(3):
            case(12):
                  LSA=1;LSB=1;LSC=0; break;
         case(4):
            case(11):
                  LSA=0;LSB=0;LSC=1; break;
         case(5):
            case(10):
                  LSA=1;LSB=0;LSC=1; break;
         case(6):
            case(9):
                  LSA=0;LSB=1;LSC=1; break;
         case(7):
            case(8):
                  LSA=1;LSB=1;LSC=1; break;
      }
P0=smgduan[j];
delay(5000);
P0=0x00;
}

void main()
{
      while(1)
{
         DigDisplay();
            keypush();
            if (j>15)
            {
                     j=0;
            }
      }
}

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