實(shí)用的數(shù)碼管靜態(tài)顯示程序分享

ID:444215 · 發(fā)表于 2021-4-2 14:03

#include "reg52.h"

unsigned char code SMG_duanma[18]=
      {0xc0,0xf9,0xa4,0xb0,0x99,0x92,0x82,0xf8,
   0x80,0x90,0x88,0x80,0xc6,0xc0,0x86,0x8e,
   0xbf,0x7f};


void Delay(unsigned int t)
{
while(t--);
while(t--);
}

void InitHC138(unsigned char n)
{
switch(n)
{
      case 4:
         P2 = (P2 & 0x1f) | 0x80;
      break;
      case 5:
         P2 = (P2 & 0x1f) | 0xa0;
      break;
      case 6:
         P2 = (P2 & 0x1f) | 0xc0;
      break;
      case 7:
         P2 = (P2 & 0x1f) | 0xe0;
      break;
}
}

void ShowSMG_Bit(unsigned char dat, unsigned pos)
{
InitHC138(6);          //數(shù)碼管的位置
P0 = 0x01 << pos;
InitHC138(7);          //數(shù)碼管的內(nèi)容
P0 = dat;
}

void SMG_Static()
{
unsigned char i,j;
for(i = 0; i < 8; i++)
{
      for(j = 0; j < 10; j++)
      {
         ShowSMG_Bit(SMG_duanma[j],i);
         Delay(60000);
      }
}
for(j = 0; j < 16; j++)
{
      InitHC138(6);          //數(shù)碼管的位置
      P0 = 0xff;
      InitHC138(7);          //數(shù)碼管的內(nèi)容
      P0 = SMG_duanma[j];
      Delay(60000);
      Delay(60000);
}
}

void main()
{
while(1)
{
      SMG_Static();
}
}

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