#include

#include

#include

#define uchar unsigned char

#define uint unsigned int

#define ADC0809 XBYTE[0x0B000] //P2.6選通

float sum=0,fjg;

uint i,j,*q,*p,sd=5;

sbit p1_0=P1^0;

void wait(uint n);

void main(void)

{ j=0;

TMOD=0X01;//設(shè)置定時(shí)器0

TH0=0XFC;//定時(shí)時(shí)間設(shè)為1ms

TL0=0X18;

EA=0;//先關(guān)中斷

EA=1;//開總中斷

ET0=1;

//TR0=1;

for(; ;)

{

if(j=20){

do{}while(!TF0);

q=0x30;

for(i=0;i<20;i++) //轉(zhuǎn)化后的數(shù)值求均方根

{sum=sum+(*q)*(*q);

q++;

}

sum=sum/20;

fjg=sqrt(sum);

if(fjg>sd) //判斷是否跳閘

p1_0=1;

j=0;

}}

}

void power(void)

{ uchar x;

for(;;)

{ADC0809=0x01;

wait(1000);

x=ADC0809;

P2=x;

}

}

void wait(uint n)

{ uint i,j;

for(i=0;i

for(j=0;j<100;j++);

}

timer0()interrupt 1 using 1

{*p=ADC0809;

p++;

TH0=0XFC;

TL0=0X18;

TR0=1;

j++;

}