hong lv deng 2.c

模拟交通灯

#include <reg51.h>
#define uchar unsigned char
#define uint unsigned int

sbit P3_3=P3^3;
sbit P1_0=P1^0;
sbit P1_1=P1^1;
sbit P1_2=P1^2;
sbit P1_3=P1^3;
sbit P1_4=P1^4;
sbit P1_5=P1^5;
sbit P1_6=P1^6;

#define OSC_FREQ	12000000
#define _1ms		(65536-OSC_FREQ/(12000000/980))
#define _10ms		(65536-OSC_FREQ/(12000000/9970))

uchar code tab[]={0x88,0xEB,0x4c,0x49,0x2B,0x19,0x18,0xCB,0x08,
					0x09,0x0A,0x38,0x9C,0x68,0x1C,0x1E,0xFF};
uchar ucCnt_10ms;
uchar ucLed1;

void Timer_1ms(uint_1ms);
void Led_RR();       //红红
void Led_RG();       //红绿
void Led_RY();       //红黄
void Led_GR();       //绿红
void Led_YR();       //黄红 
void Led_Off();
void Xint0(void);
void SHUSHU();

/*****************************************************/

void main(void)
{
	P1=0x00;
	EA=1;
	EX1=1;
	IT1=0;	
	Led_RR();
	do{
		Led_RG();
		Led_RY();
		Led_GR();
		Led_YR();
	}while(1);
}

/********************************/

/*void Timer_1ms(uint_1ms)
{
	TMOD=TMOD&(0x0f)|0x10;
	TR1=1;
	while(uint_1ms--)
	{
		TH1=_1ms/256;
		TL1=_1ms%256;
		while(!TF1);
		TF1=0;
	}
	TR1=0;
}*/

/*********************************/

void Xint1(void) interrupt 2 using 3
{
	P1_0=0;
	P1_2=0;
	P1_4=0;
	P1_5=0;
	P1_6=0;
	P1_1=1;
	P1_3=1;
	for(;;)
	{
	;
	}
}

/*********************************/

void Led_RR()           //红红2s
{
	P1_0=0;
	P1_2=0;
	P1_4=0;
	P1_5=0;
	P1_6=0;
	P1_1=1;
	P1_3=1;
	SHUSHU();
	//Timer_1ms(2000);
	Led_Off();
}

/*********************************/

void Led_RG()            //红绿5s
{
	P1_1=1;
	P1_2=1;
	//Timer_1ms(5000);
	Led_Off();
}

/*********************************/
	
void Led_RY()         //红黄5s
{
	uint i;
	P1_1=1;
	for(i=1;i<=5;i++)
		{
		P1_5=1;
		//Timer_1ms(500);
		P1_5=0;
		//Timer_1ms(500);
		}
	Led_Off();
}

/**********************************/

void Led_GR()           //绿红5s
{
	P1_0=1;
	P1_3=1;
	//Timer_1ms(5000);
	Led_Off();
}

/**********************************/

void Led_YR()          //黄红5s
{
	uint i;
	P1_3=1;
	for(i=1;i<=5;i++)
	{
		P1_4=1;
		//Timer_1ms(500);
		P1_4=0;
		//Timer_1ms(500);
	}
	Led_Off();
}

/*********************************/

void Led_Off()
{
	P1_0=0;
	P1_1=0;
	P1_2=0;
	P1_3=0;
	P1_4=0;
	P1_5=0;
	P1_6=0;
}

/********************************/

void SHUSHU()
{
	uchar i;
	TMOD=0x01;
	TH0=_10ms/256;
	TL0=_10ms%256;
	SCON=0x00;
	TI=1;
	EA=1;
	ET0=1;
	TR0=1;
	ucCnt_10ms=0;
	ucLed1=0;
	for(;;)
	{
		SBUF=tab[ucLed1];
		while(!TI);
		TI=0;
		for(i=0;i<=2;i++);
	}
}

/*************************************/

void Time0(void) interrupt 1
{
	TR0=0;
	TH0=_10ms/256;
	TL0=_10ms%256;
	TR0=1;
	if(ucCnt_10ms++==100)
	{
		ucCnt_10ms=0;
		if(ucLed1++==0x10)
		{
			ucLed1=0;
		}
	}
}