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謝謝大家?guī)臀医獯饐栴} ，我修改了很多，，，我剛才又試了一下，發(fā)現(xiàn)error都改掉了！！！！！！！！！！~謝謝大家的指正和幫助！！！！！
單片機(jī)源程序如下:
#include <AT89X52.h>
#include "DS18B20.h"
#define uint unsigned int
#define uchar unsigned char
#define SET P3_1
#define DEC P3_2
#define ADD P3_3
#define BEEP P3_7
bit shanshuo_st;
bit beep_st;
sbit DIAN=P2^7;
uchar x=0;
signed char m;
uchar n;
uchar set_st=0;
signed char shangxian=38;
signed char xiaxian=5;
uchar code
LEDData[]={0xC0,0xF9,0xA4,0xB0,0x99,0x92,0x82,0xF8,0x80,0x90,0xff};
void Delay (uint num)
{
while (--num);
}
void InitTimer(void)
{
TMOD=0x1;
TH0=0x3C;
TL0=0xb0;
}
void timer0(void) interrupt 1
{
TH0=0x3C;
TL0=0xb0;
x++;
}
void int0(void) interrupt 0
{
EX0=0;
if(DEC==0&&set_st==1)
{
shangxian--;
if(shangxian<xiaxian)shangxian=xiaxian;
}
else if(DEC==0&&set_st==2)
{
xiaxian--;
if(xiaxian<0)xiaxian=0;
}
}
void int1(void) interrupt 2
{
EX1=0;
if(ADD==0&&set_st==1)
{
shangxian++;
if(shangxian>99)shangxian=99;
}
else if(ADD==0&&set_st==2)
{
xiaxian++;
if(xiaxian>shangxian)xiaxian=shangxian;
}
}
void check_wendu(void)
{
uint a,b,c;
c=ReadTemperature()-5;
a=c/100;
b=c/10-a*10;
m=c/10;
n=c-a*100-b*10;
if(m<0){m=0;n=0;}
if(m>99){m=99;n=9;}
}
Disp_init()
{
P2=0xbf;
P1=0xf7;
Delay(200);
P1=0xfb;
Delay(200);
P1=0xfd;
Delay(200);
P1=0xfe;
Delay(200);
P1=0xff;
}
Disp_Temperature()
{
P2=0xc6;
P1=0xf7;
Delay(300);
P2=LEDData[n];
P1=0xfb;
Delay(300);
P2=LEDData[m%10];
DIAN=0;
P1=0xfd;
Delay(300);
P2=LEDData[m/10];
P1=0xfe;
Delay(300);
P1=0xff;
}
Disp_alarm(uchar baojing)
{
P2=0xc6;
P1=0xf7;
Delay(200);
P2=LEDData[baojing%10];
P1=0xfb;
Delay(200);
P2=LEDData[baojing/10];
P1=0xfd;
Delay(200);
if(set_st==1)P2=0x89;
else if(set_st==2)P2=0xc7;
P1=0xfe;
Delay(200);
P1=0xff;
}
void Alarm()
{
if(x>=10){beep_st=~beep_st;x=0;}
if((m>=shangxian&&beep_st==1)||(m<xiaxian&&beep_st==1))BEEP=0;
else BEEP=0;
}
void main(void)
{
uint z;
InitTimer();
EA=1;
TR0=1;
ET0=1;
IT0=1;
IT1=1;
cheak_wendu();
cheak_wendu();
for(z=0;z<300;z++)
{
Disp_init();
}
while(1)
{
if(SET==0)
{
Delay(2000);
do{}while(SET==0);
set_st++;x=0;shanshuo_st=1;
if(set_st>2)set_st=0;
}
if(set_st==0)
{
EX0=0;
EX1=0;
cheak_wendu();
Disp_Temperature();
Alarm();
}
else if(set_st==1)
{
BEEP=1;
EX0=1;
EX1=1;
if(x>=10){shanshuo_st=~shanshuo_st==0;x=0;}
if(shanshuo_st) {Disp_alarm(shangxian);}
}
else if(set_st==2)
{
BEEP=1;
EX0=1;
EX1=1;
if(x>=10){shanshuo_st=~shanshuo_st==0;x=0;}
if(shanshuo_st) {Disp_alarm(xiaxian);}
}
}
}
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