AT89C2051單片機和74HC138控制64位LED燈程序電路圖

ID:1133433 · 發表于 2024-11-5 10:34

#include <reg2051.h>

void delay(unsigned int cnt)
{
  unsigned  int i;
      while(cnt--)
      {
            for(i = 0;i < 227;i++);
      }
}

void main()
{
            P1=0x01; //001
            P3=0x00;
            delay(50);
            P3=0x01;
            delay(50);
            P3=0x02;
            delay(50);
            P3=0x03;
            delay(50);
            P3=0x04;
            delay(50);
            P3=0x05;
            delay(50);
            P3=0x06;
            delay(50);
            P3=0x07;
            delay(50);

            P1=0x02; //10
            P3=0x00;
            delay(50);
            P3=0x01;
            delay(50);
            P3=0x02;
            delay(50);
            P3=0x03;
            delay(50);
            P3=0x04;
            delay(50);
            P3=0x05;
            delay(50);
            P3=0x06;
            delay(50);
            P3=0x07;
            delay(50);

            P1=0x04; //100
            P3=0x00;
            delay(50);
            P3=0x01;
            delay(50);
            P3=0x02;
            delay(50);
            P3=0x03;
            delay(50);
            P3=0x04;
            delay(50);
            P3=0x05;
            delay(50);
            P3=0x06;
            delay(50);
            P3=0x07;
            delay(50);

            P1=0x08; //1000
            P3=0x00;
            delay(50);
            P3=0x01;
            delay(50);
            P3=0x02;
            delay(50);
            P3=0x03;
            delay(50);
            P3=0x04;
            delay(50);
            P3=0x05;
            delay(50);
            P3=0x06;
            delay(50);
            P3=0x07;
            delay(50);

            P1=0x10; //1 0000
            P3=0x00;
            delay(50);
            P3=0x01;
            delay(50);
            P3=0x02;
            delay(50);
            P3=0x03;
            delay(50);
            P3=0x04;
            delay(50);
            P3=0x05;
            delay(50);
            P3=0x06;
            delay(50);
            P3=0x07;
            delay(50);

            P1=0x020; //10 0000
            P3=0x00;
            delay(50);
            P3=0x01;
            delay(50);
            P3=0x02;
            delay(50);
            P3=0x03;
            delay(50);
            P3=0x04;
            delay(50);
            P3=0x05;
            delay(50);
            P3=0x06;
            delay(50);
            P3=0x07;
            delay(50);

            P1=0x040; //100 0000
            P3=0x00;
            delay(50);
            P3=0x01;
            delay(50);
            P3=0x02;
            delay(50);
            P3=0x03;
            delay(50);
            P3=0x04;
            delay(50);
            P3=0x05;
            delay(50);
            P3=0x06;
            delay(50);
            P3=0x07;
            delay(50);

            P1=0x080; //1000 0000
            P3=0x00;
            delay(50);
            P3=0x01;
            delay(50);
            P3=0x02;
            delay(50);
            P3=0x03;
            delay(50);
            P3=0x04;
            delay(50);
            P3=0x05;
            delay(50);
            P3=0x06;
            delay(50);
            P3=0x07;
            delay(50);
}

ID:468878 · 發表于 2024-11-18 10:17

看到樓主的代碼，讓我陷入深深的回憶當中——當年寫匯編代碼應該就是這樣的風格，你是不是還沒扭轉過來

ID:102963 · 發表于 2024-12-27 07:28

這程序寫的太長了，可以優化下。搞個數組，然后for循環調用，很短的程序應該就能搞定。

ID:1133433 · 發表于 2025-3-5 14:27

謝謝songxia8013提醒，現在修改如下：

#include <reg2051.h>

const unsigned char P1_arry[8]={0x01,0x02,0x04,0x08,0x10,0x20,0x40,0x80};
const unsigned char P3_arry[8]={0x00,0x01,0x02,0x03,0x04,0x05,0x06,0x07};

void delay(unsigned int cnt)
{
  unsigned  int i;
while(cnt--)
{
for(i = 0;i < 227;i++);
}
}

void main()
{

   unsigned char i, j;

      while(1)
      {
            for(i=0;i<8;i++)
            {
                     P1 = P1_arry[ i];
                     for(j=0;j<8;j++)
                     {
                              P3 = P3_arry[j];
                              delay(200);
                     }
            }
      }
}

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AT89C2051單片機和74HC138控制64位LED燈程序電路圖

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AT89C2051單片機和74HC138控制64位LED燈 程序電路圖

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AT89C2051單片機和74HC138控制64位LED燈程序電路圖