#include <reg51.h>
#include <absacc.h>
#include <math.h>
#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)置定時器0
TH0=0XFC;//定時時間設(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<n;i++)
for(j=0;j<100;j++);
}
timer0()interrupt 1 using 1
{*p=ADC0809;
p++;
TH0=0XFC;
TL0=0X18;
TR0=1;
j++;
}
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66821730(技術(shù)支持)
