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51 MCU C programming (three, four-digit digital tube flying effect)

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The 4-digit digital tube flying effect, the PROTEUS simulation circuit diagram is as follows:

[Reprint] 51 MCU C Programming (Three, 4-digit digital tube flying effect)


#include
#define uchar unsigned char
#define LED P0

uchar code tab[]={0xc0,0xf9,0xa4,0xb0,0x99,0x92,0x82,0xf8,0x80,0x90,0xff}; //Common anode digital tube digital code
uchar disp1[8][4]={{8,10,10,10},{0,8,10,10},{5,0,8,10},{1,5,0,8},{10,1,5,0},{10,10,1,5},{10,10,10,1},{10,10,10,10}};
        //8 display states of the digital tube
uchar scan;
void delay1ms(int);
void display(int);

void main()
{
 int i;   
 while(1)
 { 
      for(i=0;i<8;i++)     //Scan 8 states in sequence
      display(i);
 }
}

void display(int m)
{
 int i,j,k;
 for(k=5;k>0;k--)   //Scan each state 5 times in total
  {
   scan=0x01;   //Scan code
   for(i=0;i<4;i++)
   {
    P3=scan;
    j=disp1[m][i];      //Get one LED in the scan state
    =tab[j];    //Get the corresponding segment code
    delay1ms(10);
    scan=scan<<1;   //Scan code shift left
   }
  }
}

void delay1ms(int x)
{
   int i,j;
   for(i=x;i>0;i--)
    for(j=120;j>0;j--);
}

Reference address：51 MCU C programming (three, four-digit digital tube flying effect)

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Recommended ReadingLatest update time:2024-11-16 17:43

C51 dynamic display method of digital tube
Code: #include reg52.h #define uchar unsigned char #define uint unsigned int sbit dula=P2^6; sbit wela=P2^7; uchar num,dunum,wenum; uchar code table_du ={ 0x3f,0x06,0x5b,0x4f,0x66,0x6d, 0x7d,0x07,0x7f,0x6f,0x77,0x7c, 0x39,0x5e,0x79,0x71}; //Digital tube segment selection code uchar code table_we ={ 0xfe,0xfd,0xfb
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He Limin Column Microcontroller and Embedded Systems Bible

Professor at Beihang University, dedicated to promoting microcontrollers and embedded systems for over 20 years.

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