用单片机实现的交通灯设计

Delay(2);

}

}

//east and west flashing

void East_West_Flash()

{

GREEN_A=1;

YELLOW_A=!YELLOW_A;

S1=0;

S2=0;

Delay(500);

for(k=0;k<10;k++)

East_West_7seg();

}

//south and north leds control funtion void South_North_Leds()

{

//south green leds on

RED_A=0;

YELLOW_A=1;