//Breathing?LED?
//
//P1.3（PWM0）??LED1??ADC
//P1.4（PWM1）??LED2??BUTTON
//
//LED?DISPLAY
//P2.2?P2.3?P2.4??wei?
//P0?SEG
//P1.0?LE	
//
//led2:??f?=?0.36?*?v?+?0.2

#include??
typedef?unsigned?char?byte;
typedef?unsigned?int??word;?

#define?ADC_POWER?0x80
#define?ADC_FLAG?0x10
#define?ADC_START?0x08
#define?ADC_SPEEDL?0x20
#define?ADC_SPEEDLL?0x00

sbit?LED1?=?P1^3;
sbit?LED2?=?P1^4;

sbit?w2?=?P2^4;//位選
sbit?w1?=?P2^3;
sbit?w0	=?P2^2;
sbit?le?=?P1^0;

byte?num1num0;

byte?duty;?//?duty?control
byte?ttv;//?t++?per?50ms
float?f1f2T1T2;//?frequency?and?period
byte?n1n2;??//period?-->?digital
byte?unumberutemp;
byte?voltemp[5];
float?voltagevoltage0;
?
byte?table[]={0x3f0x060x5b0x4f0x660x6d0x7d0x070x7f0x6f};
byte?dot?=?0x80;

void?delay（unsigned?int?tms）;
void?pwmInit（）;
void?Timer0Init（void）;
void?InitADC（）;?
void?main（void）?
{
	
	?ET0?=?1;
	?EX0?=?1;?
	?EX1?=?1;
?????IT1=1;//下跳沿觸發(fā)
	?IT0=1;	?
	?EADC=1;
//	?PT0=1;	
	??EA?=?1;

	?f1=1.6;
	?num1=0;
	?num0=0;
	?P3=0xff;
	?Timer0Init（）;
	?pwmInit（）;
	?InitADC（）;
	?TR0?=?1;		//timer0?start
?	?while（1）
	?{
	?	T1=1/f1;
		n1=T1*20+0.5;
		num1=（byte）f1;
		num0=（byte）（（f1-num1）*10）;
	?		

	?	P0=table[num1]|dot;
		w2=0;
		w1=0;
		w0=0;
		le=1;
		le=0;
		delay（2）;
		
?
	????f2=0.36?*?voltage?+?0.2;
????????T2=1/f2;
		n2=T2*20+0.5;

		P0=table[num0];
		w2=0;
		w1=0;
		w0=1;
		le=1;
		le=0;
?????	delay（2）;	
	?}
}?

void?incfrq（）?interrupt?0//increase?frequency0
{
	??delay（40）;
	??if（P3^2==0）
	??{	
	??	??CR=0;	??
		??f1?+=?0.1;	??
		??if（f1<=0.2||f1>=2）
		??{
		??	f1?=?2;
		??}
		??CCAP0H?=?0;
		??CR=1;
	??}

	
}

void?decfrq（）?interrupt?2//decrease?frequency0
{????????????	
	??delay（40）;
	??if（P3^3==0）
	??{	
	??	??CR=0;	??	??
	??????f1?-=?0.1;	??
		??if（f1<=0.2||f1>=2）
		??{
		??	f1?=?0.2;
		??}
		???CCAP0H?=?0;
		??CR=1;
	??}
	?	??
}

voi