簡單十字路交通紅綠燈單片機代碼

ID:1073071 · 發(fā)表于 2023-5-22 18:59

源代碼
#include <reg51.h>
sbit EastWestGreen = P1^2;
sbit EastWestYellow = P1^1;
sbit EastWestRed = P1^0;
sbit NorthSouthGreen = P1^3;
sbit NorthSouthYellow = P1^4;
sbit NorthSouthRed = P1^5;

#define TL0_INIT_VALUE 0x1F3F

void timer0_isr() interrupt 1
{
  char i;
  static unsigned char count = 0;
  TH0 = TL0_INIT_VALUE >> 8;
  TL0 = TL0_INIT_VALUE & 0xFF;
  i++;
  if(i==20)
{
i=0;
count++;
      }

  if (count <= 15)
  {
EastWestGreen = 0;
EastWestYellow = 0;
EastWestRed = 1;
  }
  else if (count <= 25)
  {
EastWestGreen = 1;
EastWestYellow = 0;
EastWestRed = 0;
  }
  else if (count <= 28) {  // 綠燈閃爍3s
EastWestGreen = !EastWestGreen;
EastWestYellow = 0;
EastWestRed = 0;
  } else if (count <= 30) {  // 黃燈亮2s
EastWestGreen = 0;
EastWestYellow = 1;
EastWestRed = 0;
  }
  else
  {
      count = 0;
  }

  if (count <= 10)
  {
NorthSouthGreen = 1;
NorthSouthYellow = 0;
NorthSouthRed = 0;
  }
  else if (count <= 13)
  {
NorthSouthGreen = !NorthSouthGreen;
NorthSouthYellow = 0;
NorthSouthRed = 0;
  }
  else if (count <= 15)
  {
NorthSouthGreen = 0;
NorthSouthYellow = 1;
NorthSouthRed = 0;
  }
  else {
NorthSouthGreen = 0;
NorthSouthYellow = 0;
NorthSouthRed = 1;
  }
}

void main()
{
  TMOD = 0x01;
  TH0 = TL0_INIT_VALUE >> 8;
  TL0 = TL0_INIT_VALUE & 0xFF;
  ET0 = 1;
  EA = 1;
  TR0 = 1;

  while (1)
  {

  }
}

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簡單十字路交通紅綠燈單片機代碼

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