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TI
新手求助,如果把这个51单片机的程序和仿真更改成MSP430的程序和仿真?
2019-07-15 15:44
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站内问答
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TI MCU
18863
8
1725
新手求助,毕业设计马上要交,老师要求吧AT89C51改成msp430
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8条回答
端木以鑫
1楼-- · 2019-07-15 21:31
#include <AT89X52.h>
#define uint unsigned int
#define uchar unsigned char //宏定义
#define SET P3_1 //定义调整键
#define DEC P3_2 //定义减少键
#define ADD P3_3 //定义增加键
#define BEEP P3_6 //定义蜂鸣器
#define LED_H P1_6 //定义灯光报警
#define LED_L P1_7 //定义灯光报警
#define DQ P3_7 //定义DS18B20总线I/O
bit shanshuo_st; //闪烁间隔标志
bit beep_st; //蜂鸣器间隔标志
bit H_ZF=0,L_ZF=0;
signed char shangxian=35; //上限报警温度
signed char xiaxian=15; //下限报警温度
bit fuhao=0;
uint wendu=0;
uchar x=0;
uchar qian=0,bai=0,shi=0,ge=0;
sbit DIAN = P0^5; //小数点
uchar set_st=0; //状态标志
//uchar code LEDData[]={0xC0,0xF9,0xA4,0xB0,0x99,0x92,0x82,0xF8,0x80,0x90,0xff};
uchar code LEDData[]={0x5F,0x44,0x9D,0xDd,0xC6,0xD3,0xDB,0x47,0xDF,0xD7,0xCF,0xDA,0x9B,0xDC,0x9B,0x8B};
//============================================================================================
//====================================DS18B20=================================================
//============================================================================================
/*****延时子程序*****/
void Delay_DS18B20(int num)
{
while(num--) ;
}
/*****初始化DS18B20*****/
void Init_DS18B20(void)
{
unsigned char x=0;
DQ = 0; //DQ复位
Delay_DS18B20(8); //稍做延时
DQ = 1; //单片机将DQ拉低
Delay_DS18B20(80); //精确延时,大于480us
DQ = 0; //拉高总线
Delay_DS18B20(34);
}
/*****读一个字节*****/
unsigned char ReadOneChar(void)
{
unsigned char i=0;
unsigned char dat = 0;
for (i=8;i>0;i--)
{
DQ = 0; // 给脉冲信号
dat>>=1;
DQ = 1; // 给脉冲信号
if(DQ)
dat|=0x80;
Delay_DS18B20(4);
}
return(dat);
}
/*****写一个字节*****/
void WriteOneChar(unsigned char dat)
{
unsigned char i=0;
for (i=8; i>0; i--)
{
DQ = 1;
DQ = dat&&0x01;
Delay_DS18B20(5);
DQ = 0;
dat>>=1;
}
}
/*****读取温度*****/
unsigned int ReadTemperature(void)
{
unsigned char a=0;
unsigned char b=0;
unsigned int t=0;
float tt=0;
Init_DS18B20();
WriteOneChar(0xCC); //跳过读序号列号的操作
WriteOneChar(0x47); //启动温度转换
Init_DS18B20();
WriteOneChar(0xCC); //跳过读序号列号的操作
WriteOneChar(0xBF); //读取温度寄存器
a=ReadOneChar(); //读低8位
b=ReadOneChar(); //读高8位
t=b;
t<<=8;
t=t|a;
if(t&&0xf800)
{
t=~t+1;
fuhao=1;
}
else
fuhao=0;
tt=t*0.00625;
t= tt*10+0.5; //放大10倍输出并四舍五入
return(t);
}
//=====================================================================================
//=====================================================================================
//=====================================================================================
/*****延时子程序*****/
void Delay(uint num)
{
while( --num );
}
/*****初始化定时器0*****/
void InitTimer(void)
{
TMOD=0x10;
TL0=0x3c;
TH0=0xb0; //50ms(晶振12M)
EA=1; //全局中断开关
TR0=1;
ET0=1; //开启定时器0
IT0=1;
IT1=1;
}
/*****显示开机初始化等待画面*****/
void Disp_init(void)
{
P0 = 0x80; //显示----
P2 = 0xBF;
Delay(200);
P2 = 0xEF;
Delay(200);
P2 = 0xFB;
Delay(200);
P2 = 0xFE;
Delay(200);
P2 = 0xFF; //关闭显示
}
/*****显示温度子程序*****/
void Disp_Temperature(void) //显示温度
{
qian=wendu/1000;
bai=wendu%1000/100;
shi=wendu%1000/100/10;
ge=wendu%1000%100/10;
P0 = LEDData[ge]; //
P2 = 0xBF;
Delay(200);
P2=0xff;
P0=LEDData[shi]; //显示个位
P2 = 0xEF;
DIAN = 0; //显示小数点
Delay(200);
P2=0xff;
if((qian+bai)!=0)
P0 =LEDData[bai]; //显示bai位
else
P0=0xff;
P2 = 0xFB;
Delay(200);
P2=0xff;
if(qian!=0&&fuhao==0)
P0 =LEDData[qian]; //显示qian位
else if(qian==0&&fuhao==0)
P0=0xff;
else if(fuhao==1)
P0=0x80;
P2 = 0xFE;
Delay(200);
P2 = 0xff; //关闭显示
}
/*****显示报警温度子程序*****/
void Disp_alarm(uchar baojing)
{
P0 =LEDData[baojing%10]; //
P2 = 0xBF;
Delay(100);
P2=0xff;
P0 =LEDData[baojing%100/10]; //显示十位
P2 = 0xEF;
Delay(100);
P2=0xff;
if(set_st==1&&H_ZF==0&&baojing/100!=0)
P0 =LEDData[baojing/100]; //显示百位
else if(set_st==1&&H_ZF==0&&baojing/100==0)
P0=0xff;
else if(set_st==1&&H_ZF==1)
P0=0x80;
else if(set_st==2&&L_ZF==0&&baojing/100!=0)
P0 =LEDData[baojing/100]; //显示百位
else if(set_st==2&&L_ZF==0&&baojing/100==0)
P0=0xff;
else if(set_st==2&&L_ZF==1)
P0=0x80;
P2 = 0xFB;
Delay(100);
P2=0xff;
if(set_st==1)P0 =~0xCE;
else if(set_st==2)P0 =0x1A; //上限H、下限L标示
P2 = 0xFE;
Delay(100);
P2 = 0xff; //关闭显示
}
/*****报警子程序*****/
void Alarm()
{
if(x>=10){beep_st=~beep_st;x=0;}
if((fuhao==0&&H_ZF==0&&wendu>shangxian)||(fuhao==1&&H_ZF==1&&wendu<shangxian)||(fuhao==0&&H_ZF==1))
{
if(beep_st==1)
{
LED_H=0;
BEEP=0;
}
else
{
LED_H=1;
BEEP=1;
}
}
else if((fuhao==0&&L_ZF==0&&wendu<xiaxian)||(fuhao==1&&L_ZF==1&&wendu>xiaxian)||(fuhao==1&&L_ZF==0))
{
if(beep_st==1)
{
LED_L=0;
BEEP=0;
}
else
{
LED_L=1;
BEEP=1;
}
}
else
{
LED_H=1;
LED_L=1;
BEEP=1;
}
}
/*****主函数*****/
void main(void)
{
uint z;
// uchar s;
InitTimer(); //初始化定时器
wendu=ReadTemperature()-5; //获取温度值并减去DS18B20的温漂误差
for(z=0;z<300;z++)
{
Disp_init();
}
while(1)
{
if(SET==0)
{
BEEP=1;
Delay(200);
BEEP=0;
do{}while(SET==0);
LED_H=1;
LED_L=1;
BEEP=1;
set_st++;x=0;shanshuo_st=1;
if(set_st>2)set_st=0;
}
if(set_st==0)
{
EX0=0; //关闭外部中断0
EX1=0; //关闭外部中断1
wendu=ReadTemperature(); //获取温度值并减去DS18B20的温漂误差
// for(s=0;s<10;s++)
Disp_Temperature();
Alarm(); //报警检测
}
else if(set_st==1)
{
BEEP=1; //关闭蜂鸣器
EX0=1; //开启外部中断0
EX1=1; //开启外部中断1
if(x>=10){shanshuo_st=~shanshuo_st;x=0;}
if(shanshuo_st) {Disp_alarm(shangxian);}
}
else if(set_st==2)
{
BEEP=1; //关闭蜂鸣器
EX0=1; //开启外部中断0
EX1=1; //开启外部中断1
if(x>=10){shanshuo_st=~shanshuo_st;x=0;}
if(shanshuo_st) {Disp_alarm(xiaxian);}
}
}
}
/*****定时器0中断服务程序*****/
void timer0(void) interrupt 1
{
TL0=0x3c;
TH0=0xb0;
x++;
}
/*****外部中断0服务程序*****/
void int0(void) interrupt 0
{
EX0=0; //关外部中断0
if(DEC==0&&set_st==1)
{
BEEP=1;
Delay(2000);
BEEP=0;
do
{
Disp_alarm(shangxian);
}
while(DEC==0);
if(H_ZF==0&&L_ZF==0)
{
shangxian--;
if(shangxian<=xiaxian+1)
shangxian=xiaxian+1;
}
else if(H_ZF==0&&L_ZF==1)
{
shangxian--;
if(shangxian<0&&xiaxian==1)
{
shangxian=0;
H_ZF=0;
}
else if(shangxian<0&&xiaxian>1)
{
shangxian=1;
H_ZF=1;
}
}
else if(H_ZF==1)
{
shangxian++;
if(shangxian>=xiaxian-1)
shangxian=xiaxian-1;
}
}
else if(DEC==0&&set_st==2)
{
BEEP=0;
Delay(2000);
BEEP=1;
do
{
Disp_alarm(xiaxian);
}
while(DEC==0);
if(L_ZF==0)
{
xiaxian--;
if(xiaxian<0)
{
xiaxian=1;
L_ZF=1;
}
}
else if(L_ZF==1)
{
xiaxian++;
if(xiaxian>=55)
{
xiaxian=55;
}
}
}
}
/*****外部中断1服务程序*****/
void int1(void) interrupt 2
{
EX1=0; //关外部中断1
if(ADD==0&&set_st==1)
{
BEEP=0;
Delay(2000);
BEEP=1;
do
{
Disp_alarm(shangxian);
}
while(ADD==0);
if(H_ZF==0)
{
shangxian++;
if(shangxian>=125)shangxian=125;
}
else if(H_ZF==1)
{
shangxian--;
if(shangxian<=0)
{
shangxian=0;
H_ZF=0;
}
}
}
else if(ADD==0&&set_st==2)
{
BEEP=0;
Delay(2000);
BEEP=1;
do
{
Disp_alarm(xiaxian);
}
while(ADD==0);
if(L_ZF==0)
{
xiaxian++;
if(xiaxian>=shangxian-1)
xiaxian=shangxian-1;
}
else if(H_ZF==0&&L_ZF==1)
{
xiaxian--;
if(xiaxian<=0)
{
if(shangxian==0)
{
xiaxian=1;
L_ZF=1;
}
else
{
xiaxian=0;
L_ZF=0;
}
}
}
else if(H_ZF==1&&L_ZF==1)
{
xiaxian--;
if(xiaxian<=shangxian+1)
xiaxian=shangxian+1;
}
}
}
加载中...
端木以鑫
2楼-- · 2019-07-16 00:31
仿真如图
加载中...
端木以鑫
3楼-- · 2019-07-16 05:21
#include <AT89X52.h>
#define uint unsigned int
#define uchar unsigned char //宏定义
#define SET P3_1 //定义调整键
#define DEC P3_2 //定义减少键
#define ADD P3_3 //定义增加键
#define BEEP P3_6 //定义蜂鸣器
#define LED_H P1_6 //定义灯光报警
#define LED_L P1_7 //定义灯光报警
#define DQ P3_7 //定义DS18B20总线I/O
bit shanshuo_st; //闪烁间隔标志
bit beep_st; //蜂鸣器间隔标志
bit H_ZF=0,L_ZF=0;
signed char shangxian=35; //上限报警温度
signed char xiaxian=15; //下限报警温度
bit fuhao=0;
uint wendu=0;
uchar x=0;
uchar qian=0,bai=0,shi=0,ge=0;
sbit DIAN = P0^5; //小数点
uchar set_st=0; //状态标志
//uchar code LEDData[]={0xC0,0xF9,0xA4,0xB0,0x99,0x92,0x82,0xF8,0x80,0x90,0xff};
uchar code LEDData[]={0x5F,0x44,0x9D,0xDd,0xC6,0xD3,0xDB,0x47,0xDF,0xD7,0xCF,0xDA,0x9B,0xDC,0x9B,0x8B};
//============================================================================================
//====================================DS18B20=================================================
//============================================================================================
/*****延时子程序*****/
void Delay_DS18B20(int num)
{
while(num--) ;
}
/*****初始化DS18B20*****/
void Init_DS18B20(void)
{
unsigned char x=0;
DQ = 0; //DQ复位
Delay_DS18B20(8); //稍做延时
DQ = 1; //单片机将DQ拉低
Delay_DS18B20(80); //精确延时,大于480us
DQ = 0; //拉高总线
Delay_DS18B20(34);
}
/*****读一个字节*****/
unsigned char ReadOneChar(void)
{
unsigned char i=0;
unsigned char dat = 0;
for (i=8;i>0;i--)
{
DQ = 0; // 给脉冲信号
dat>>=1;
DQ = 1; // 给脉冲信号
if(DQ)
dat|=0x80;
Delay_DS18B20(4);
}
return(dat);
}
/*****写一个字节*****/
void WriteOneChar(unsigned char dat)
{
unsigned char i=0;
for (i=8; i>0; i--)
{
DQ = 1;
DQ = dat&&0x01;
Delay_DS18B20(5);
DQ = 0;
dat>>=1;
}
}
/*****读取温度*****/
unsigned int ReadTemperature(void)
{
unsigned char a=0;
unsigned char b=0;
unsigned int t=0;
float tt=0;
Init_DS18B20();
WriteOneChar(0xCC); //跳过读序号列号的操作
WriteOneChar(0x47); //启动温度转换
Init_DS18B20();
WriteOneChar(0xCC); //跳过读序号列号的操作
WriteOneChar(0xBF); //读取温度寄存器
a=ReadOneChar(); //读低8位
b=ReadOneChar(); //读高8位
t=b;
t<<=8;
t=t|a;
if(t&&0xf800)
{
t=~t+1;
fuhao=1;
}
else
fuhao=0;
tt=t*0.00625;
t= tt*10+0.5; //放大10倍输出并四舍五入
return(t);
}
//=====================================================================================
//=====================================================================================
//=====================================================================================
/*****延时子程序*****/
void Delay(uint num)
{
while( --num );
}
/*****初始化定时器0*****/
void InitTimer(void)
{
TMOD=0x10;
TL0=0x3c;
TH0=0xb0; //50ms(晶振12M)
EA=1; //全局中断开关
TR0=1;
ET0=1; //开启定时器0
IT0=1;
IT1=1;
}
/*****显示开机初始化等待画面*****/
void Disp_init(void)
{
P0 = 0x80; //显示----
P2 = 0xBF;
Delay(200);
P2 = 0xEF;
Delay(200);
P2 = 0xFB;
Delay(200);
P2 = 0xFE;
Delay(200);
P2 = 0xFF; //关闭显示
}
/*****显示温度子程序*****/
void Disp_Temperature(void) //显示温度
{
qian=wendu/1000;
bai=wendu%1000/100;
shi=wendu%1000/100/10;
ge=wendu%1000%100/10;
P0 = LEDData[ge]; //
P2 = 0xBF;
Delay(200);
P2=0xff;
P0=LEDData[shi]; //显示个位
P2 = 0xEF;
DIAN = 0; //显示小数点
Delay(200);
P2=0xff;
if((qian+bai)!=0)
P0 =LEDData[bai]; //显示bai位
else
P0=0xff;
P2 = 0xFB;
Delay(200);
P2=0xff;
if(qian!=0&&fuhao==0)
P0 =LEDData[qian]; //显示qian位
else if(qian==0&&fuhao==0)
P0=0xff;
else if(fuhao==1)
P0=0x80;
P2 = 0xFE;
Delay(200);
P2 = 0xff; //关闭显示
}
/*****显示报警温度子程序*****/
void Disp_alarm(uchar baojing)
{
P0 =LEDData[baojing%10]; //
P2 = 0xBF;
Delay(100);
P2=0xff;
P0 =LEDData[baojing%100/10]; //显示十位
P2 = 0xEF;
Delay(100);
P2=0xff;
if(set_st==1&&H_ZF==0&&baojing/100!=0)
P0 =LEDData[baojing/100]; //显示百位
else if(set_st==1&&H_ZF==0&&baojing/100==0)
P0=0xff;
else if(set_st==1&&H_ZF==1)
P0=0x80;
else if(set_st==2&&L_ZF==0&&baojing/100!=0)
P0 =LEDData[baojing/100]; //显示百位
else if(set_st==2&&L_ZF==0&&baojing/100==0)
P0=0xff;
else if(set_st==2&&L_ZF==1)
P0=0x80;
P2 = 0xFB;
Delay(100);
P2=0xff;
if(set_st==1)P0 =~0xCE;
else if(set_st==2)P0 =0x1A; //上限H、下限L标示
P2 = 0xFE;
Delay(100);
P2 = 0xff; //关闭显示
}
/*****报警子程序*****/
void Alarm()
{
if(x>=10){beep_st=~beep_st;x=0;}
if((fuhao==0&&H_ZF==0&&wendu>shangxian)||(fuhao==1&&H_ZF==1&&wendu<shangxian)||(fuhao==0&&H_ZF==1))
{
if(beep_st==1)
{
LED_H=0;
BEEP=0;
}
else
{
LED_H=1;
BEEP=1;
}
}
else if((fuhao==0&&L_ZF==0&&wendu<xiaxian)||(fuhao==1&&L_ZF==1&&wendu>xiaxian)||(fuhao==1&&L_ZF==0))
{
if(beep_st==1)
{
LED_L=0;
BEEP=0;
}
else
{
LED_L=1;
BEEP=1;
}
}
else
{
LED_H=1;
LED_L=1;
BEEP=1;
}
}
/*****主函数*****/
void main(void)
{
uint z;
// uchar s;
InitTimer(); //初始化定时器
wendu=ReadTemperature()-5; //获取温度值并减去DS18B20的温漂误差
for(z=0;z<300;z++)
{
Disp_init();
}
while(1)
{
if(SET==0)
{
BEEP=1;
Delay(200);
BEEP=0;
do{}while(SET==0);
LED_H=1;
LED_L=1;
BEEP=1;
set_st++;x=0;shanshuo_st=1;
if(set_st>2)set_st=0;
}
if(set_st==0)
{
EX0=0; //关闭外部中断0
EX1=0; //关闭外部中断1
wendu=ReadTemperature(); //获取温度值并减去DS18B20的温漂误差
// for(s=0;s<10;s++)
Disp_Temperature();
Alarm(); //报警检测
}
else if(set_st==1)
{
BEEP=1; //关闭蜂鸣器
EX0=1; //开启外部中断0
EX1=1; //开启外部中断1
if(x>=10){shanshuo_st=~shanshuo_st;x=0;}
if(shanshuo_st) {Disp_alarm(shangxian);}
}
else if(set_st==2)
{
BEEP=1; //关闭蜂鸣器
EX0=1; //开启外部中断0
EX1=1; //开启外部中断1
if(x>=10){shanshuo_st=~shanshuo_st;x=0;}
if(shanshuo_st) {Disp_alarm(xiaxian);}
}
}
}
/*****定时器0中断服务程序*****/
void timer0(void) interrupt 1
{
TL0=0x3c;
TH0=0xb0;
x++;
}
/*****外部中断0服务程序*****/
void int0(void) interrupt 0
{
EX0=0; //关外部中断0
if(DEC==0&&set_st==1)
{
BEEP=1;
Delay(2000);
BEEP=0;
do
{
Disp_alarm(shangxian);
}
while(DEC==0);
if(H_ZF==0&&L_ZF==0)
{
shangxian--;
if(shangxian<=xiaxian+1)
shangxian=xiaxian+1;
}
else if(H_ZF==0&&L_ZF==1)
{
shangxian--;
if(shangxian<0&&xiaxian==1)
{
shangxian=0;
H_ZF=0;
}
else if(shangxian<0&&xiaxian>1)
{
shangxian=1;
H_ZF=1;
}
}
else if(H_ZF==1)
{
shangxian++;
if(shangxian>=xiaxian-1)
shangxian=xiaxian-1;
}
}
else if(DEC==0&&set_st==2)
{
BEEP=0;
Delay(2000);
BEEP=1;
do
{
Disp_alarm(xiaxian);
}
while(DEC==0);
if(L_ZF==0)
{
xiaxian--;
if(xiaxian<0)
{
xiaxian=1;
L_ZF=1;
}
}
else if(L_ZF==1)
{
xiaxian++;
if(xiaxian>=55)
{
xiaxian=55;
}
}
}
}
/*****外部中断1服务程序*****/
void int1(void) interrupt 2
{
EX1=0; //关外部中断1
if(ADD==0&&set_st==1)
{
BEEP=0;
Delay(2000);
BEEP=1;
do
{
Disp_alarm(shangxian);
}
while(ADD==0);
if(H_ZF==0)
{
shangxian++;
if(shangxian>=125)shangxian=125;
}
else if(H_ZF==1)
{
shangxian--;
if(shangxian<=0)
{
shangxian=0;
H_ZF=0;
}
}
}
else if(ADD==0&&set_st==2)
{
BEEP=0;
Delay(2000);
BEEP=1;
do
{
Disp_alarm(xiaxian);
}
while(ADD==0);
if(L_ZF==0)
{
xiaxian++;
if(xiaxian>=shangxian-1)
xiaxian=shangxian-1;
}
else if(H_ZF==0&&L_ZF==1)
{
xiaxian--;
if(xiaxian<=0)
{
if(shangxian==0)
{
xiaxian=1;
L_ZF=1;
}
else
{
xiaxian=0;
L_ZF=0;
}
}
}
else if(H_ZF==1&&L_ZF==1)
{
xiaxian--;
if(xiaxian<=shangxian+1)
xiaxian=shangxian+1;
}
}
}
加载中...
端木以鑫
4楼-- · 2019-07-16 08:03
精彩回答 2 元偷偷看……
加载中...
端木以鑫
5楼-- · 2019-07-16 09:50
#include <AT89X52.h>
#define uint unsigned int
#define uchar unsigned char //宏定义
#define SET P3_1 //定义调整键
#define DEC P3_2 //定义减少键
#define ADD P3_3 //定义增加键
#define BEEP P3_6 //定义蜂鸣器
#define LED_H P1_6 //定义灯光报警
#define LED_L P1_7 //定义灯光报警
#define DQ P3_7 //定义DS18B20总线I/O
bit shanshuo_st; //闪烁间隔标志
bit beep_st; //蜂鸣器间隔标志
bit H_ZF=0,L_ZF=0;
signed char shangxian=35; //上限报警温度
signed char xiaxian=15; //下限报警温度
bit fuhao=0;
uint wendu=0;
uchar x=0;
uchar qian=0,bai=0,shi=0,ge=0;
sbit DIAN = P0^5; //小数点
uchar set_st=0; //状态标志
//uchar code LEDData[]={0xC0,0xF9,0xA4,0xB0,0x99,0x92,0x82,0xF8,0x80,0x90,0xff};
uchar code LEDData[]={0x5F,0x44,0x9D,0xDd,0xC6,0xD3,0xDB,0x47,0xDF,0xD7,0xCF,0xDA,0x9B,0xDC,0x9B,0x8B};
//============================================================================================
//====================================DS18B20=================================================
//============================================================================================
/*****延时子程序*****/
void Delay_DS18B20(int num)
{
while(num--) ;
}
/*****初始化DS18B20*****/
void Init_DS18B20(void)
{
unsigned char x=0;
DQ = 0; //DQ复位
Delay_DS18B20(8); //稍做延时
DQ = 1; //单片机将DQ拉低
Delay_DS18B20(80); //精确延时,大于480us
DQ = 0; //拉高总线
Delay_DS18B20(34);
}
/*****读一个字节*****/
unsigned char ReadOneChar(void)
{
unsigned char i=0;
unsigned char dat = 0;
for (i=8;i>0;i--)
{
DQ = 0; // 给脉冲信号
dat>>=1;
DQ = 1; // 给脉冲信号
if(DQ)
dat|=0x80;
Delay_DS18B20(4);
}
return(dat);
}
/*****写一个字节*****/
void WriteOneChar(unsigned char dat)
{
unsigned char i=0;
for (i=8; i>0; i--)
{
DQ = 1;
DQ = dat&&0x01;
Delay_DS18B20(5);
DQ = 0;
dat>>=1;
}
}
/*****读取温度*****/
unsigned int ReadTemperature(void)
{
unsigned char a=0;
unsigned char b=0;
unsigned int t=0;
float tt=0;
Init_DS18B20();
WriteOneChar(0xCC); //跳过读序号列号的操作
WriteOneChar(0x47); //启动温度转换
Init_DS18B20();
WriteOneChar(0xCC); //跳过读序号列号的操作
WriteOneChar(0xBF); //读取温度寄存器
a=ReadOneChar(); //读低8位
b=ReadOneChar(); //读高8位
t=b;
t<<=8;
t=t|a;
if(t&&0xf800)
{
t=~t+1;
fuhao=1;
}
else
fuhao=0;
tt=t*0.00625;
t= tt*10+0.5; //放大10倍输出并四舍五入
return(t);
}
//=====================================================================================
//=====================================================================================
//=====================================================================================
/*****延时子程序*****/
void Delay(uint num)
{
while( --num );
}
/*****初始化定时器0*****/
void InitTimer(void)
{
TMOD=0x10;
TL0=0x3c;
TH0=0xb0; //50ms(晶振12M)
EA=1; //全局中断开关
TR0=1;
ET0=1; //开启定时器0
IT0=1;
IT1=1;
}
/*****显示开机初始化等待画面*****/
void Disp_init(void)
{
P0 = 0x80; //显示----
P2 = 0xBF;
Delay(200);
P2 = 0xEF;
Delay(200);
P2 = 0xFB;
Delay(200);
P2 = 0xFE;
Delay(200);
P2 = 0xFF; //关闭显示
}
/*****显示温度子程序*****/
void Disp_Temperature(void) //显示温度
{
qian=wendu/1000;
bai=wendu%1000/100;
shi=wendu%1000/100/10;
ge=wendu%1000%100/10;
P0 = LEDData[ge]; //
P2 = 0xBF;
Delay(200);
P2=0xff;
P0=LEDData[shi]; //显示个位
P2 = 0xEF;
DIAN = 0; //显示小数点
Delay(200);
P2=0xff;
if((qian+bai)!=0)
P0 =LEDData[bai]; //显示bai位
else
P0=0xff;
P2 = 0xFB;
Delay(200);
P2=0xff;
if(qian!=0&&fuhao==0)
P0 =LEDData[qian]; //显示qian位
else if(qian==0&&fuhao==0)
P0=0xff;
else if(fuhao==1)
P0=0x80;
P2 = 0xFE;
Delay(200);
P2 = 0xff; //关闭显示
}
/*****显示报警温度子程序*****/
void Disp_alarm(uchar baojing)
{
P0 =LEDData[baojing%10]; //
P2 = 0xBF;
Delay(100);
P2=0xff;
P0 =LEDData[baojing%100/10]; //显示十位
P2 = 0xEF;
Delay(100);
P2=0xff;
if(set_st==1&&H_ZF==0&&baojing/100!=0)
P0 =LEDData[baojing/100]; //显示百位
else if(set_st==1&&H_ZF==0&&baojing/100==0)
P0=0xff;
else if(set_st==1&&H_ZF==1)
P0=0x80;
else if(set_st==2&&L_ZF==0&&baojing/100!=0)
P0 =LEDData[baojing/100]; //显示百位
else if(set_st==2&&L_ZF==0&&baojing/100==0)
P0=0xff;
else if(set_st==2&&L_ZF==1)
P0=0x80;
P2 = 0xFB;
Delay(100);
P2=0xff;
if(set_st==1)P0 =~0xCE;
else if(set_st==2)P0 =0x1A; //上限H、下限L标示
P2 = 0xFE;
Delay(100);
P2 = 0xff; //关闭显示
}
/*****报警子程序*****/
void Alarm()
{
if(x>=10){beep_st=~beep_st;x=0;}
if((fuhao==0&&H_ZF==0&&wendu>shangxian)||(fuhao==1&&H_ZF==1&&wendu<shangxian)||(fuhao==0&&H_ZF==1))
{
if(beep_st==1)
{
LED_H=0;
BEEP=0;
}
else
{
LED_H=1;
BEEP=1;
}
}
else if((fuhao==0&&L_ZF==0&&wendu<xiaxian)||(fuhao==1&&L_ZF==1&&wendu>xiaxian)||(fuhao==1&&L_ZF==0))
{
if(beep_st==1)
{
LED_L=0;
BEEP=0;
}
else
{
LED_L=1;
BEEP=1;
}
}
else
{
LED_H=1;
LED_L=1;
BEEP=1;
}
}
/*****主函数*****/
void main(void)
{
uint z;
// uchar s;
InitTimer(); //初始化定时器
wendu=ReadTemperature()-5; //获取温度值并减去DS18B20的温漂误差
for(z=0;z<300;z++)
{
Disp_init();
}
while(1)
{
if(SET==0)
{
BEEP=1;
Delay(200);
BEEP=0;
do{}while(SET==0);
LED_H=1;
LED_L=1;
BEEP=1;
set_st++;x=0;shanshuo_st=1;
if(set_st>2)set_st=0;
}
if(set_st==0)
{
EX0=0; //关闭外部中断0
EX1=0; //关闭外部中断1
wendu=ReadTemperature(); //获取温度值并减去DS18B20的温漂误差
// for(s=0;s<10;s++)
Disp_Temperature();
Alarm(); //报警检测
}
else if(set_st==1)
{
BEEP=1; //关闭蜂鸣器
EX0=1; //开启外部中断0
EX1=1; //开启外部中断1
if(x>=10){shanshuo_st=~shanshuo_st;x=0;}
if(shanshuo_st) {Disp_alarm(shangxian);}
}
else if(set_st==2)
{
BEEP=1; //关闭蜂鸣器
EX0=1; //开启外部中断0
EX1=1; //开启外部中断1
if(x>=10){shanshuo_st=~shanshuo_st;x=0;}
if(shanshuo_st) {Disp_alarm(xiaxian);}
}
}
}
/*****定时器0中断服务程序*****/
void timer0(void) interrupt 1
{
TL0=0x3c;
TH0=0xb0;
x++;
}
/*****外部中断0服务程序*****/
void int0(void) interrupt 0
{
EX0=0; //关外部中断0
if(DEC==0&&set_st==1)
{
BEEP=1;
Delay(2000);
BEEP=0;
do
{
Disp_alarm(shangxian);
}
while(DEC==0);
if(H_ZF==0&&L_ZF==0)
{
shangxian--;
if(shangxian<=xiaxian+1)
shangxian=xiaxian+1;
}
else if(H_ZF==0&&L_ZF==1)
{
shangxian--;
if(shangxian<0&&xiaxian==1)
{
shangxian=0;
H_ZF=0;
}
else if(shangxian<0&&xiaxian>1)
{
shangxian=1;
H_ZF=1;
}
}
else if(H_ZF==1)
{
shangxian++;
if(shangxian>=xiaxian-1)
shangxian=xiaxian-1;
}
}
else if(DEC==0&&set_st==2)
{
BEEP=0;
Delay(2000);
BEEP=1;
do
{
Disp_alarm(xiaxian);
}
while(DEC==0);
if(L_ZF==0)
{
xiaxian--;
if(xiaxian<0)
{
xiaxian=1;
L_ZF=1;
}
}
else if(L_ZF==1)
{
xiaxian++;
if(xiaxian>=55)
{
xiaxian=55;
}
}
}
}
/*****外部中断1服务程序*****/
void int1(void) interrupt 2
{
EX1=0; //关外部中断1
if(ADD==0&&set_st==1)
{
BEEP=0;
Delay(2000);
BEEP=1;
do
{
Disp_alarm(shangxian);
}
while(ADD==0);
if(H_ZF==0)
{
shangxian++;
if(shangxian>=125)shangxian=125;
}
else if(H_ZF==1)
{
shangxian--;
if(shangxian<=0)
{
shangxian=0;
H_ZF=0;
}
}
}
else if(ADD==0&&set_st==2)
{
BEEP=0;
Delay(2000);
BEEP=1;
do
{
Disp_alarm(xiaxian);
}
while(ADD==0);
if(L_ZF==0)
{
xiaxian++;
if(xiaxian>=shangxian-1)
xiaxian=shangxian-1;
}
else if(H_ZF==0&&L_ZF==1)
{
xiaxian--;
if(xiaxian<=0)
{
if(shangxian==0)
{
xiaxian=1;
L_ZF=1;
}
else
{
xiaxian=0;
L_ZF=0;
}
}
}
else if(H_ZF==1&&L_ZF==1)
{
xiaxian--;
if(xiaxian<=shangxian+1)
xiaxian=shangxian+1;
}
}
}
加载中...
端木以鑫
6楼-- · 2019-07-16 13:22
#include <AT89X52.h>
#define uint unsigned int
#define uchar unsigned char //宏定义
#define SET P3_1 //定义调整键
#define DEC P3_2 //定义减少键
#define ADD P3_3 //定义增加键
#define BEEP P3_6 //定义蜂鸣器
#define LED_H P1_6 //定义灯光报警
#define LED_L P1_7 //定义灯光报警
#define DQ P3_7 //定义DS18B20总线I/O
bit shanshuo_st; //闪烁间隔标志
bit beep_st; //蜂鸣器间隔标志
bit H_ZF=0,L_ZF=0;
signed char shangxian=35; //上限报警温度
signed char xiaxian=15; //下限报警温度
bit fuhao=0;
uint wendu=0;
uchar x=0;
uchar qian=0,bai=0,shi=0,ge=0;
sbit DIAN = P0^5; //小数点
uchar set_st=0; //状态标志
//uchar code LEDData[]={0xC0,0xF9,0xA4,0xB0,0x99,0x92,0x82,0xF8,0x80,0x90,0xff};
uchar code LEDData[]={0x5F,0x44,0x9D,0xDd,0xC6,0xD3,0xDB,0x47,0xDF,0xD7,0xCF,0xDA,0x9B,0xDC,0x9B,0x8B};
//============================================================================================
//====================================DS18B20=================================================
//============================================================================================
/*****延时子程序*****/
void Delay_DS18B20(int num)
{
while(num--) ;
}
/*****初始化DS18B20*****/
void Init_DS18B20(void)
{
unsigned char x=0;
DQ = 0; //DQ复位
Delay_DS18B20(8); //稍做延时
DQ = 1; //单片机将DQ拉低
Delay_DS18B20(80); //精确延时,大于480us
DQ = 0; //拉高总线
Delay_DS18B20(34);
}
/*****读一个字节*****/
unsigned char ReadOneChar(void)
{
unsigned char i=0;
unsigned char dat = 0;
for (i=8;i>0;i--)
{
DQ = 0; // 给脉冲信号
dat>>=1;
DQ = 1; // 给脉冲信号
if(DQ)
dat|=0x80;
Delay_DS18B20(4);
}
return(dat);
}
/*****写一个字节*****/
void WriteOneChar(unsigned char dat)
{
unsigned char i=0;
for (i=8; i>0; i--)
{
DQ = 1;
DQ = dat&&0x01;
Delay_DS18B20(5);
DQ = 0;
dat>>=1;
}
}
/*****读取温度*****/
unsigned int ReadTemperature(void)
{
unsigned char a=0;
unsigned char b=0;
unsigned int t=0;
float tt=0;
Init_DS18B20();
WriteOneChar(0xCC); //跳过读序号列号的操作
WriteOneChar(0x47); //启动温度转换
Init_DS18B20();
WriteOneChar(0xCC); //跳过读序号列号的操作
WriteOneChar(0xBF); //读取温度寄存器
a=ReadOneChar(); //读低8位
b=ReadOneChar(); //读高8位
t=b;
t<<=8;
t=t|a;
if(t&&0xf800)
{
t=~t+1;
fuhao=1;
}
else
fuhao=0;
tt=t*0.00625;
t= tt*10+0.5; //放大10倍输出并四舍五入
return(t);
}
//=====================================================================================
//=====================================================================================
//=====================================================================================
/*****延时子程序*****/
void Delay(uint num)
{
while( --num );
}
/*****初始化定时器0*****/
void InitTimer(void)
{
TMOD=0x10;
TL0=0x3c;
TH0=0xb0; //50ms(晶振12M)
EA=1; //全局中断开关
TR0=1;
ET0=1; //开启定时器0
IT0=1;
IT1=1;
}
/*****显示开机初始化等待画面*****/
void Disp_init(void)
{
P0 = 0x80; //显示----
P2 = 0xBF;
Delay(200);
P2 = 0xEF;
Delay(200);
P2 = 0xFB;
Delay(200);
P2 = 0xFE;
Delay(200);
P2 = 0xFF; //关闭显示
}
/*****显示温度子程序*****/
void Disp_Temperature(void) //显示温度
{
qian=wendu/1000;
bai=wendu%1000/100;
shi=wendu%1000/100/10;
ge=wendu%1000%100/10;
P0 = LEDData[ge]; //
P2 = 0xBF;
Delay(200);
P2=0xff;
P0=LEDData[shi]; //显示个位
P2 = 0xEF;
DIAN = 0; //显示小数点
Delay(200);
P2=0xff;
if((qian+bai)!=0)
P0 =LEDData[bai]; //显示bai位
else
P0=0xff;
P2 = 0xFB;
Delay(200);
P2=0xff;
if(qian!=0&&fuhao==0)
P0 =LEDData[qian]; //显示qian位
else if(qian==0&&fuhao==0)
P0=0xff;
else if(fuhao==1)
P0=0x80;
P2 = 0xFE;
Delay(200);
P2 = 0xff; //关闭显示
}
/*****显示报警温度子程序*****/
void Disp_alarm(uchar baojing)
{
P0 =LEDData[baojing%10]; //
P2 = 0xBF;
Delay(100);
P2=0xff;
P0 =LEDData[baojing%100/10]; //显示十位
P2 = 0xEF;
Delay(100);
P2=0xff;
if(set_st==1&&H_ZF==0&&baojing/100!=0)
P0 =LEDData[baojing/100]; //显示百位
else if(set_st==1&&H_ZF==0&&baojing/100==0)
P0=0xff;
else if(set_st==1&&H_ZF==1)
P0=0x80;
else if(set_st==2&&L_ZF==0&&baojing/100!=0)
P0 =LEDData[baojing/100]; //显示百位
else if(set_st==2&&L_ZF==0&&baojing/100==0)
P0=0xff;
else if(set_st==2&&L_ZF==1)
P0=0x80;
P2 = 0xFB;
Delay(100);
P2=0xff;
if(set_st==1)P0 =~0xCE;
else if(set_st==2)P0 =0x1A; //上限H、下限L标示
P2 = 0xFE;
Delay(100);
P2 = 0xff; //关闭显示
}
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#define uint unsigned int
#define uchar unsigned char //宏定义
#define SET P3_1 //定义调整键
#define DEC P3_2 //定义减少键
#define ADD P3_3 //定义增加键
#define BEEP P3_6 //定义蜂鸣器
#define LED_H P1_6 //定义灯光报警
#define LED_L P1_7 //定义灯光报警
#define DQ P3_7 //定义DS18B20总线I/O
bit shanshuo_st; //闪烁间隔标志
bit beep_st; //蜂鸣器间隔标志
bit H_ZF=0,L_ZF=0;
signed char shangxian=35; //上限报警温度
signed char xiaxian=15; //下限报警温度
bit fuhao=0;
uint wendu=0;
uchar x=0;
uchar qian=0,bai=0,shi=0,ge=0;
sbit DIAN = P0^5; //小数点
uchar set_st=0; //状态标志
//uchar code LEDData[]={0xC0,0xF9,0xA4,0xB0,0x99,0x92,0x82,0xF8,0x80,0x90,0xff};
uchar code LEDData[]={0x5F,0x44,0x9D,0xDd,0xC6,0xD3,0xDB,0x47,0xDF,0xD7,0xCF,0xDA,0x9B,0xDC,0x9B,0x8B};
//============================================================================================
//====================================DS18B20=================================================
//============================================================================================
/*****延时子程序*****/
void Delay_DS18B20(int num)
{
while(num--) ;
}
/*****初始化DS18B20*****/
void Init_DS18B20(void)
{
unsigned char x=0;
DQ = 0; //DQ复位
Delay_DS18B20(8); //稍做延时
DQ = 1; //单片机将DQ拉低
Delay_DS18B20(80); //精确延时,大于480us
DQ = 0; //拉高总线
Delay_DS18B20(34);
}
/*****读一个字节*****/
unsigned char ReadOneChar(void)
{
unsigned char i=0;
unsigned char dat = 0;
for (i=8;i>0;i--)
{
DQ = 0; // 给脉冲信号
dat>>=1;
DQ = 1; // 给脉冲信号
if(DQ)
dat|=0x80;
Delay_DS18B20(4);
}
return(dat);
}
/*****写一个字节*****/
void WriteOneChar(unsigned char dat)
{
unsigned char i=0;
for (i=8; i>0; i--)
{
DQ = 1;
DQ = dat&&0x01;
Delay_DS18B20(5);
DQ = 0;
dat>>=1;
}
}
/*****读取温度*****/
unsigned int ReadTemperature(void)
{
unsigned char a=0;
unsigned char b=0;
unsigned int t=0;
float tt=0;
Init_DS18B20();
WriteOneChar(0xCC); //跳过读序号列号的操作
WriteOneChar(0x47); //启动温度转换
Init_DS18B20();
WriteOneChar(0xCC); //跳过读序号列号的操作
WriteOneChar(0xBF); //读取温度寄存器
a=ReadOneChar(); //读低8位
b=ReadOneChar(); //读高8位
t=b;
t<<=8;
t=t|a;
if(t&&0xf800)
{
t=~t+1;
fuhao=1;
}
else
fuhao=0;
tt=t*0.00625;
t= tt*10+0.5; //放大10倍输出并四舍五入
return(t);
}
//=====================================================================================
//=====================================================================================
//=====================================================================================
/*****延时子程序*****/
void Delay(uint num)
{
while( --num );
}
/*****初始化定时器0*****/
void InitTimer(void)
{
TMOD=0x10;
TL0=0x3c;
TH0=0xb0; //50ms(晶振12M)
EA=1; //全局中断开关
TR0=1;
ET0=1; //开启定时器0
IT0=1;
IT1=1;
}
/*****显示开机初始化等待画面*****/
void Disp_init(void)
{
P0 = 0x80; //显示----
P2 = 0xBF;
Delay(200);
P2 = 0xEF;
Delay(200);
P2 = 0xFB;
Delay(200);
P2 = 0xFE;
Delay(200);
P2 = 0xFF; //关闭显示
}
/*****显示温度子程序*****/
void Disp_Temperature(void) //显示温度
{
qian=wendu/1000;
bai=wendu%1000/100;
shi=wendu%1000/100/10;
ge=wendu%1000%100/10;
P0 = LEDData[ge]; //
P2 = 0xBF;
Delay(200);
P2=0xff;
P0=LEDData[shi]; //显示个位
P2 = 0xEF;
DIAN = 0; //显示小数点
Delay(200);
P2=0xff;
if((qian+bai)!=0)
P0 =LEDData[bai]; //显示bai位
else
P0=0xff;
P2 = 0xFB;
Delay(200);
P2=0xff;
if(qian!=0&&fuhao==0)
P0 =LEDData[qian]; //显示qian位
else if(qian==0&&fuhao==0)
P0=0xff;
else if(fuhao==1)
P0=0x80;
P2 = 0xFE;
Delay(200);
P2 = 0xff; //关闭显示
}
/*****显示报警温度子程序*****/
void Disp_alarm(uchar baojing)
{
P0 =LEDData[baojing%10]; //
P2 = 0xBF;
Delay(100);
P2=0xff;
P0 =LEDData[baojing%100/10]; //显示十位
P2 = 0xEF;
Delay(100);
P2=0xff;
if(set_st==1&&H_ZF==0&&baojing/100!=0)
P0 =LEDData[baojing/100]; //显示百位
else if(set_st==1&&H_ZF==0&&baojing/100==0)
P0=0xff;
else if(set_st==1&&H_ZF==1)
P0=0x80;
else if(set_st==2&&L_ZF==0&&baojing/100!=0)
P0 =LEDData[baojing/100]; //显示百位
else if(set_st==2&&L_ZF==0&&baojing/100==0)
P0=0xff;
else if(set_st==2&&L_ZF==1)
P0=0x80;
P2 = 0xFB;
Delay(100);
P2=0xff;
if(set_st==1)P0 =~0xCE;
else if(set_st==2)P0 =0x1A; //上限H、下限L标示
P2 = 0xFE;
Delay(100);
P2 = 0xff; //关闭显示
}
/*****报警子程序*****/
void Alarm()
{
if(x>=10){beep_st=~beep_st;x=0;}
if((fuhao==0&&H_ZF==0&&wendu>shangxian)||(fuhao==1&&H_ZF==1&&wendu<shangxian)||(fuhao==0&&H_ZF==1))
{
if(beep_st==1)
{
LED_H=0;
BEEP=0;
}
else
{
LED_H=1;
BEEP=1;
}
}
else if((fuhao==0&&L_ZF==0&&wendu<xiaxian)||(fuhao==1&&L_ZF==1&&wendu>xiaxian)||(fuhao==1&&L_ZF==0))
{
if(beep_st==1)
{
LED_L=0;
BEEP=0;
}
else
{
LED_L=1;
BEEP=1;
}
}
else
{
LED_H=1;
LED_L=1;
BEEP=1;
}
}
/*****主函数*****/
void main(void)
{
uint z;
// uchar s;
InitTimer(); //初始化定时器
wendu=ReadTemperature()-5; //获取温度值并减去DS18B20的温漂误差
for(z=0;z<300;z++)
{
Disp_init();
}
while(1)
{
if(SET==0)
{
BEEP=1;
Delay(200);
BEEP=0;
do{}while(SET==0);
LED_H=1;
LED_L=1;
BEEP=1;
set_st++;x=0;shanshuo_st=1;
if(set_st>2)set_st=0;
}
if(set_st==0)
{
EX0=0; //关闭外部中断0
EX1=0; //关闭外部中断1
wendu=ReadTemperature(); //获取温度值并减去DS18B20的温漂误差
// for(s=0;s<10;s++)
Disp_Temperature();
Alarm(); //报警检测
}
else if(set_st==1)
{
BEEP=1; //关闭蜂鸣器
EX0=1; //开启外部中断0
EX1=1; //开启外部中断1
if(x>=10){shanshuo_st=~shanshuo_st;x=0;}
if(shanshuo_st) {Disp_alarm(shangxian);}
}
else if(set_st==2)
{
BEEP=1; //关闭蜂鸣器
EX0=1; //开启外部中断0
EX1=1; //开启外部中断1
if(x>=10){shanshuo_st=~shanshuo_st;x=0;}
if(shanshuo_st) {Disp_alarm(xiaxian);}
}
}
}
/*****定时器0中断服务程序*****/
void timer0(void) interrupt 1
{
TL0=0x3c;
TH0=0xb0;
x++;
}
/*****外部中断0服务程序*****/
void int0(void) interrupt 0
{
EX0=0; //关外部中断0
if(DEC==0&&set_st==1)
{
BEEP=1;
Delay(2000);
BEEP=0;
do
{
Disp_alarm(shangxian);
}
while(DEC==0);
if(H_ZF==0&&L_ZF==0)
{
shangxian--;
if(shangxian<=xiaxian+1)
shangxian=xiaxian+1;
}
else if(H_ZF==0&&L_ZF==1)
{
shangxian--;
if(shangxian<0&&xiaxian==1)
{
shangxian=0;
H_ZF=0;
}
else if(shangxian<0&&xiaxian>1)
{
shangxian=1;
H_ZF=1;
}
}
else if(H_ZF==1)
{
shangxian++;
if(shangxian>=xiaxian-1)
shangxian=xiaxian-1;
}
}
else if(DEC==0&&set_st==2)
{
BEEP=0;
Delay(2000);
BEEP=1;
do
{
Disp_alarm(xiaxian);
}
while(DEC==0);
if(L_ZF==0)
{
xiaxian--;
if(xiaxian<0)
{
xiaxian=1;
L_ZF=1;
}
}
else if(L_ZF==1)
{
xiaxian++;
if(xiaxian>=55)
{
xiaxian=55;
}
}
}
}
/*****外部中断1服务程序*****/
void int1(void) interrupt 2
{
EX1=0; //关外部中断1
if(ADD==0&&set_st==1)
{
BEEP=0;
Delay(2000);
BEEP=1;
do
{
Disp_alarm(shangxian);
}
while(ADD==0);
if(H_ZF==0)
{
shangxian++;
if(shangxian>=125)shangxian=125;
}
else if(H_ZF==1)
{
shangxian--;
if(shangxian<=0)
{
shangxian=0;
H_ZF=0;
}
}
}
else if(ADD==0&&set_st==2)
{
BEEP=0;
Delay(2000);
BEEP=1;
do
{
Disp_alarm(xiaxian);
}
while(ADD==0);
if(L_ZF==0)
{
xiaxian++;
if(xiaxian>=shangxian-1)
xiaxian=shangxian-1;
}
else if(H_ZF==0&&L_ZF==1)
{
xiaxian--;
if(xiaxian<=0)
{
if(shangxian==0)
{
xiaxian=1;
L_ZF=1;
}
else
{
xiaxian=0;
L_ZF=0;
}
}
}
else if(H_ZF==1&&L_ZF==1)
{
xiaxian--;
if(xiaxian<=shangxian+1)
xiaxian=shangxian+1;
}
}
}
#define uint unsigned int
#define uchar unsigned char //宏定义
#define SET P3_1 //定义调整键
#define DEC P3_2 //定义减少键
#define ADD P3_3 //定义增加键
#define BEEP P3_6 //定义蜂鸣器
#define LED_H P1_6 //定义灯光报警
#define LED_L P1_7 //定义灯光报警
#define DQ P3_7 //定义DS18B20总线I/O
bit shanshuo_st; //闪烁间隔标志
bit beep_st; //蜂鸣器间隔标志
bit H_ZF=0,L_ZF=0;
signed char shangxian=35; //上限报警温度
signed char xiaxian=15; //下限报警温度
bit fuhao=0;
uint wendu=0;
uchar x=0;
uchar qian=0,bai=0,shi=0,ge=0;
sbit DIAN = P0^5; //小数点
uchar set_st=0; //状态标志
//uchar code LEDData[]={0xC0,0xF9,0xA4,0xB0,0x99,0x92,0x82,0xF8,0x80,0x90,0xff};
uchar code LEDData[]={0x5F,0x44,0x9D,0xDd,0xC6,0xD3,0xDB,0x47,0xDF,0xD7,0xCF,0xDA,0x9B,0xDC,0x9B,0x8B};
//============================================================================================
//====================================DS18B20=================================================
//============================================================================================
/*****延时子程序*****/
void Delay_DS18B20(int num)
{
while(num--) ;
}
/*****初始化DS18B20*****/
void Init_DS18B20(void)
{
unsigned char x=0;
DQ = 0; //DQ复位
Delay_DS18B20(8); //稍做延时
DQ = 1; //单片机将DQ拉低
Delay_DS18B20(80); //精确延时,大于480us
DQ = 0; //拉高总线
Delay_DS18B20(34);
}
/*****读一个字节*****/
unsigned char ReadOneChar(void)
{
unsigned char i=0;
unsigned char dat = 0;
for (i=8;i>0;i--)
{
DQ = 0; // 给脉冲信号
dat>>=1;
DQ = 1; // 给脉冲信号
if(DQ)
dat|=0x80;
Delay_DS18B20(4);
}
return(dat);
}
/*****写一个字节*****/
void WriteOneChar(unsigned char dat)
{
unsigned char i=0;
for (i=8; i>0; i--)
{
DQ = 1;
DQ = dat&&0x01;
Delay_DS18B20(5);
DQ = 0;
dat>>=1;
}
}
/*****读取温度*****/
unsigned int ReadTemperature(void)
{
unsigned char a=0;
unsigned char b=0;
unsigned int t=0;
float tt=0;
Init_DS18B20();
WriteOneChar(0xCC); //跳过读序号列号的操作
WriteOneChar(0x47); //启动温度转换
Init_DS18B20();
WriteOneChar(0xCC); //跳过读序号列号的操作
WriteOneChar(0xBF); //读取温度寄存器
a=ReadOneChar(); //读低8位
b=ReadOneChar(); //读高8位
t=b;
t<<=8;
t=t|a;
if(t&&0xf800)
{
t=~t+1;
fuhao=1;
}
else
fuhao=0;
tt=t*0.00625;
t= tt*10+0.5; //放大10倍输出并四舍五入
return(t);
}
//=====================================================================================
//=====================================================================================
//=====================================================================================
/*****延时子程序*****/
void Delay(uint num)
{
while( --num );
}
/*****初始化定时器0*****/
void InitTimer(void)
{
TMOD=0x10;
TL0=0x3c;
TH0=0xb0; //50ms(晶振12M)
EA=1; //全局中断开关
TR0=1;
ET0=1; //开启定时器0
IT0=1;
IT1=1;
}
/*****显示开机初始化等待画面*****/
void Disp_init(void)
{
P0 = 0x80; //显示----
P2 = 0xBF;
Delay(200);
P2 = 0xEF;
Delay(200);
P2 = 0xFB;
Delay(200);
P2 = 0xFE;
Delay(200);
P2 = 0xFF; //关闭显示
}
/*****显示温度子程序*****/
void Disp_Temperature(void) //显示温度
{
qian=wendu/1000;
bai=wendu%1000/100;
shi=wendu%1000/100/10;
ge=wendu%1000%100/10;
P0 = LEDData[ge]; //
P2 = 0xBF;
Delay(200);
P2=0xff;
P0=LEDData[shi]; //显示个位
P2 = 0xEF;
DIAN = 0; //显示小数点
Delay(200);
P2=0xff;
if((qian+bai)!=0)
P0 =LEDData[bai]; //显示bai位
else
P0=0xff;
P2 = 0xFB;
Delay(200);
P2=0xff;
if(qian!=0&&fuhao==0)
P0 =LEDData[qian]; //显示qian位
else if(qian==0&&fuhao==0)
P0=0xff;
else if(fuhao==1)
P0=0x80;
P2 = 0xFE;
Delay(200);
P2 = 0xff; //关闭显示
}
/*****显示报警温度子程序*****/
void Disp_alarm(uchar baojing)
{
P0 =LEDData[baojing%10]; //
P2 = 0xBF;
Delay(100);
P2=0xff;
P0 =LEDData[baojing%100/10]; //显示十位
P2 = 0xEF;
Delay(100);
P2=0xff;
if(set_st==1&&H_ZF==0&&baojing/100!=0)
P0 =LEDData[baojing/100]; //显示百位
else if(set_st==1&&H_ZF==0&&baojing/100==0)
P0=0xff;
else if(set_st==1&&H_ZF==1)
P0=0x80;
else if(set_st==2&&L_ZF==0&&baojing/100!=0)
P0 =LEDData[baojing/100]; //显示百位
else if(set_st==2&&L_ZF==0&&baojing/100==0)
P0=0xff;
else if(set_st==2&&L_ZF==1)
P0=0x80;
P2 = 0xFB;
Delay(100);
P2=0xff;
if(set_st==1)P0 =~0xCE;
else if(set_st==2)P0 =0x1A; //上限H、下限L标示
P2 = 0xFE;
Delay(100);
P2 = 0xff; //关闭显示
}
/*****报警子程序*****/
void Alarm()
{
if(x>=10){beep_st=~beep_st;x=0;}
if((fuhao==0&&H_ZF==0&&wendu>shangxian)||(fuhao==1&&H_ZF==1&&wendu<shangxian)||(fuhao==0&&H_ZF==1))
{
if(beep_st==1)
{
LED_H=0;
BEEP=0;
}
else
{
LED_H=1;
BEEP=1;
}
}
else if((fuhao==0&&L_ZF==0&&wendu<xiaxian)||(fuhao==1&&L_ZF==1&&wendu>xiaxian)||(fuhao==1&&L_ZF==0))
{
if(beep_st==1)
{
LED_L=0;
BEEP=0;
}
else
{
LED_L=1;
BEEP=1;
}
}
else
{
LED_H=1;
LED_L=1;
BEEP=1;
}
}
/*****主函数*****/
void main(void)
{
uint z;
// uchar s;
InitTimer(); //初始化定时器
wendu=ReadTemperature()-5; //获取温度值并减去DS18B20的温漂误差
for(z=0;z<300;z++)
{
Disp_init();
}
while(1)
{
if(SET==0)
{
BEEP=1;
Delay(200);
BEEP=0;
do{}while(SET==0);
LED_H=1;
LED_L=1;
BEEP=1;
set_st++;x=0;shanshuo_st=1;
if(set_st>2)set_st=0;
}
if(set_st==0)
{
EX0=0; //关闭外部中断0
EX1=0; //关闭外部中断1
wendu=ReadTemperature(); //获取温度值并减去DS18B20的温漂误差
// for(s=0;s<10;s++)
Disp_Temperature();
Alarm(); //报警检测
}
else if(set_st==1)
{
BEEP=1; //关闭蜂鸣器
EX0=1; //开启外部中断0
EX1=1; //开启外部中断1
if(x>=10){shanshuo_st=~shanshuo_st;x=0;}
if(shanshuo_st) {Disp_alarm(shangxian);}
}
else if(set_st==2)
{
BEEP=1; //关闭蜂鸣器
EX0=1; //开启外部中断0
EX1=1; //开启外部中断1
if(x>=10){shanshuo_st=~shanshuo_st;x=0;}
if(shanshuo_st) {Disp_alarm(xiaxian);}
}
}
}
/*****定时器0中断服务程序*****/
void timer0(void) interrupt 1
{
TL0=0x3c;
TH0=0xb0;
x++;
}
/*****外部中断0服务程序*****/
void int0(void) interrupt 0
{
EX0=0; //关外部中断0
if(DEC==0&&set_st==1)
{
BEEP=1;
Delay(2000);
BEEP=0;
do
{
Disp_alarm(shangxian);
}
while(DEC==0);
if(H_ZF==0&&L_ZF==0)
{
shangxian--;
if(shangxian<=xiaxian+1)
shangxian=xiaxian+1;
}
else if(H_ZF==0&&L_ZF==1)
{
shangxian--;
if(shangxian<0&&xiaxian==1)
{
shangxian=0;
H_ZF=0;
}
else if(shangxian<0&&xiaxian>1)
{
shangxian=1;
H_ZF=1;
}
}
else if(H_ZF==1)
{
shangxian++;
if(shangxian>=xiaxian-1)
shangxian=xiaxian-1;
}
}
else if(DEC==0&&set_st==2)
{
BEEP=0;
Delay(2000);
BEEP=1;
do
{
Disp_alarm(xiaxian);
}
while(DEC==0);
if(L_ZF==0)
{
xiaxian--;
if(xiaxian<0)
{
xiaxian=1;
L_ZF=1;
}
}
else if(L_ZF==1)
{
xiaxian++;
if(xiaxian>=55)
{
xiaxian=55;
}
}
}
}
/*****外部中断1服务程序*****/
void int1(void) interrupt 2
{
EX1=0; //关外部中断1
if(ADD==0&&set_st==1)
{
BEEP=0;
Delay(2000);
BEEP=1;
do
{
Disp_alarm(shangxian);
}
while(ADD==0);
if(H_ZF==0)
{
shangxian++;
if(shangxian>=125)shangxian=125;
}
else if(H_ZF==1)
{
shangxian--;
if(shangxian<=0)
{
shangxian=0;
H_ZF=0;
}
}
}
else if(ADD==0&&set_st==2)
{
BEEP=0;
Delay(2000);
BEEP=1;
do
{
Disp_alarm(xiaxian);
}
while(ADD==0);
if(L_ZF==0)
{
xiaxian++;
if(xiaxian>=shangxian-1)
xiaxian=shangxian-1;
}
else if(H_ZF==0&&L_ZF==1)
{
xiaxian--;
if(xiaxian<=0)
{
if(shangxian==0)
{
xiaxian=1;
L_ZF=1;
}
else
{
xiaxian=0;
L_ZF=0;
}
}
}
else if(H_ZF==1&&L_ZF==1)
{
xiaxian--;
if(xiaxian<=shangxian+1)
xiaxian=shangxian+1;
}
}
}
#define uint unsigned int
#define uchar unsigned char //宏定义
#define SET P3_1 //定义调整键
#define DEC P3_2 //定义减少键
#define ADD P3_3 //定义增加键
#define BEEP P3_6 //定义蜂鸣器
#define LED_H P1_6 //定义灯光报警
#define LED_L P1_7 //定义灯光报警
#define DQ P3_7 //定义DS18B20总线I/O
bit shanshuo_st; //闪烁间隔标志
bit beep_st; //蜂鸣器间隔标志
bit H_ZF=0,L_ZF=0;
signed char shangxian=35; //上限报警温度
signed char xiaxian=15; //下限报警温度
bit fuhao=0;
uint wendu=0;
uchar x=0;
uchar qian=0,bai=0,shi=0,ge=0;
sbit DIAN = P0^5; //小数点
uchar set_st=0; //状态标志
//uchar code LEDData[]={0xC0,0xF9,0xA4,0xB0,0x99,0x92,0x82,0xF8,0x80,0x90,0xff};
uchar code LEDData[]={0x5F,0x44,0x9D,0xDd,0xC6,0xD3,0xDB,0x47,0xDF,0xD7,0xCF,0xDA,0x9B,0xDC,0x9B,0x8B};
//============================================================================================
//====================================DS18B20=================================================
//============================================================================================
/*****延时子程序*****/
void Delay_DS18B20(int num)
{
while(num--) ;
}
/*****初始化DS18B20*****/
void Init_DS18B20(void)
{
unsigned char x=0;
DQ = 0; //DQ复位
Delay_DS18B20(8); //稍做延时
DQ = 1; //单片机将DQ拉低
Delay_DS18B20(80); //精确延时,大于480us
DQ = 0; //拉高总线
Delay_DS18B20(34);
}
/*****读一个字节*****/
unsigned char ReadOneChar(void)
{
unsigned char i=0;
unsigned char dat = 0;
for (i=8;i>0;i--)
{
DQ = 0; // 给脉冲信号
dat>>=1;
DQ = 1; // 给脉冲信号
if(DQ)
dat|=0x80;
Delay_DS18B20(4);
}
return(dat);
}
/*****写一个字节*****/
void WriteOneChar(unsigned char dat)
{
unsigned char i=0;
for (i=8; i>0; i--)
{
DQ = 1;
DQ = dat&&0x01;
Delay_DS18B20(5);
DQ = 0;
dat>>=1;
}
}
/*****读取温度*****/
unsigned int ReadTemperature(void)
{
unsigned char a=0;
unsigned char b=0;
unsigned int t=0;
float tt=0;
Init_DS18B20();
WriteOneChar(0xCC); //跳过读序号列号的操作
WriteOneChar(0x47); //启动温度转换
Init_DS18B20();
WriteOneChar(0xCC); //跳过读序号列号的操作
WriteOneChar(0xBF); //读取温度寄存器
a=ReadOneChar(); //读低8位
b=ReadOneChar(); //读高8位
t=b;
t<<=8;
t=t|a;
if(t&&0xf800)
{
t=~t+1;
fuhao=1;
}
else
fuhao=0;
tt=t*0.00625;
t= tt*10+0.5; //放大10倍输出并四舍五入
return(t);
}
//=====================================================================================
//=====================================================================================
//=====================================================================================
/*****延时子程序*****/
void Delay(uint num)
{
while( --num );
}
/*****初始化定时器0*****/
void InitTimer(void)
{
TMOD=0x10;
TL0=0x3c;
TH0=0xb0; //50ms(晶振12M)
EA=1; //全局中断开关
TR0=1;
ET0=1; //开启定时器0
IT0=1;
IT1=1;
}
/*****显示开机初始化等待画面*****/
void Disp_init(void)
{
P0 = 0x80; //显示----
P2 = 0xBF;
Delay(200);
P2 = 0xEF;
Delay(200);
P2 = 0xFB;
Delay(200);
P2 = 0xFE;
Delay(200);
P2 = 0xFF; //关闭显示
}
/*****显示温度子程序*****/
void Disp_Temperature(void) //显示温度
{
qian=wendu/1000;
bai=wendu%1000/100;
shi=wendu%1000/100/10;
ge=wendu%1000%100/10;
P0 = LEDData[ge]; //
P2 = 0xBF;
Delay(200);
P2=0xff;
P0=LEDData[shi]; //显示个位
P2 = 0xEF;
DIAN = 0; //显示小数点
Delay(200);
P2=0xff;
if((qian+bai)!=0)
P0 =LEDData[bai]; //显示bai位
else
P0=0xff;
P2 = 0xFB;
Delay(200);
P2=0xff;
if(qian!=0&&fuhao==0)
P0 =LEDData[qian]; //显示qian位
else if(qian==0&&fuhao==0)
P0=0xff;
else if(fuhao==1)
P0=0x80;
P2 = 0xFE;
Delay(200);
P2 = 0xff; //关闭显示
}
/*****显示报警温度子程序*****/
void Disp_alarm(uchar baojing)
{
P0 =LEDData[baojing%10]; //
P2 = 0xBF;
Delay(100);
P2=0xff;
P0 =LEDData[baojing%100/10]; //显示十位
P2 = 0xEF;
Delay(100);
P2=0xff;
if(set_st==1&&H_ZF==0&&baojing/100!=0)
P0 =LEDData[baojing/100]; //显示百位
else if(set_st==1&&H_ZF==0&&baojing/100==0)
P0=0xff;
else if(set_st==1&&H_ZF==1)
P0=0x80;
else if(set_st==2&&L_ZF==0&&baojing/100!=0)
P0 =LEDData[baojing/100]; //显示百位
else if(set_st==2&&L_ZF==0&&baojing/100==0)
P0=0xff;
else if(set_st==2&&L_ZF==1)
P0=0x80;
P2 = 0xFB;
Delay(100);
P2=0xff;
if(set_st==1)P0 =~0xCE;
else if(set_st==2)P0 =0x1A; //上限H、下限L标示
P2 = 0xFE;
Delay(100);
P2 = 0xff; //关闭显示
}
/*****报警子程序*****/
void Alarm()
{
if(x>=10){beep_st=~beep_st;x=0;}
if((fuhao==0&&H_ZF==0&&wendu>shangxian)||(fuhao==1&&H_ZF==1&&wendu<shangxian)||(fuhao==0&&H_ZF==1))
{
if(beep_st==1)
{
LED_H=0;
BEEP=0;
}
else
{
LED_H=1;
BEEP=1;
}
}
else if((fuhao==0&&L_ZF==0&&wendu<xiaxian)||(fuhao==1&&L_ZF==1&&wendu>xiaxian)||(fuhao==1&&L_ZF==0))
{
if(beep_st==1)
{
LED_L=0;
BEEP=0;
}
else
{
LED_L=1;
BEEP=1;
}
}
else
{
LED_H=1;
LED_L=1;
BEEP=1;
}
}
/*****主函数*****/
void main(void)
{
uint z;
// uchar s;
InitTimer(); //初始化定时器
wendu=ReadTemperature()-5; //获取温度值并减去DS18B20的温漂误差
for(z=0;z<300;z++)
{
Disp_init();
}
while(1)
{
if(SET==0)
{
BEEP=1;
Delay(200);
BEEP=0;
do{}while(SET==0);
LED_H=1;
LED_L=1;
BEEP=1;
set_st++;x=0;shanshuo_st=1;
if(set_st>2)set_st=0;
}
if(set_st==0)
{
EX0=0; //关闭外部中断0
EX1=0; //关闭外部中断1
wendu=ReadTemperature(); //获取温度值并减去DS18B20的温漂误差
// for(s=0;s<10;s++)
Disp_Temperature();
Alarm(); //报警检测
}
else if(set_st==1)
{
BEEP=1; //关闭蜂鸣器
EX0=1; //开启外部中断0
EX1=1; //开启外部中断1
if(x>=10){shanshuo_st=~shanshuo_st;x=0;}
if(shanshuo_st) {Disp_alarm(shangxian);}
}
else if(set_st==2)
{
BEEP=1; //关闭蜂鸣器
EX0=1; //开启外部中断0
EX1=1; //开启外部中断1
if(x>=10){shanshuo_st=~shanshuo_st;x=0;}
if(shanshuo_st) {Disp_alarm(xiaxian);}
}
}
}
/*****定时器0中断服务程序*****/
void timer0(void) interrupt 1
{
TL0=0x3c;
TH0=0xb0;
x++;
}
/*****外部中断0服务程序*****/
void int0(void) interrupt 0
{
EX0=0; //关外部中断0
if(DEC==0&&set_st==1)
{
BEEP=1;
Delay(2000);
BEEP=0;
do
{
Disp_alarm(shangxian);
}
while(DEC==0);
if(H_ZF==0&&L_ZF==0)
{
shangxian--;
if(shangxian<=xiaxian+1)
shangxian=xiaxian+1;
}
else if(H_ZF==0&&L_ZF==1)
{
shangxian--;
if(shangxian<0&&xiaxian==1)
{
shangxian=0;
H_ZF=0;
}
else if(shangxian<0&&xiaxian>1)
{
shangxian=1;
H_ZF=1;
}
}
else if(H_ZF==1)
{
shangxian++;
if(shangxian>=xiaxian-1)
shangxian=xiaxian-1;
}
}
else if(DEC==0&&set_st==2)
{
BEEP=0;
Delay(2000);
BEEP=1;
do
{
Disp_alarm(xiaxian);
}
while(DEC==0);
if(L_ZF==0)
{
xiaxian--;
if(xiaxian<0)
{
xiaxian=1;
L_ZF=1;
}
}
else if(L_ZF==1)
{
xiaxian++;
if(xiaxian>=55)
{
xiaxian=55;
}
}
}
}
/*****外部中断1服务程序*****/
void int1(void) interrupt 2
{
EX1=0; //关外部中断1
if(ADD==0&&set_st==1)
{
BEEP=0;
Delay(2000);
BEEP=1;
do
{
Disp_alarm(shangxian);
}
while(ADD==0);
if(H_ZF==0)
{
shangxian++;
if(shangxian>=125)shangxian=125;
}
else if(H_ZF==1)
{
shangxian--;
if(shangxian<=0)
{
shangxian=0;
H_ZF=0;
}
}
}
else if(ADD==0&&set_st==2)
{
BEEP=0;
Delay(2000);
BEEP=1;
do
{
Disp_alarm(xiaxian);
}
while(ADD==0);
if(L_ZF==0)
{
xiaxian++;
if(xiaxian>=shangxian-1)
xiaxian=shangxian-1;
}
else if(H_ZF==0&&L_ZF==1)
{
xiaxian--;
if(xiaxian<=0)
{
if(shangxian==0)
{
xiaxian=1;
L_ZF=1;
}
else
{
xiaxian=0;
L_ZF=0;
}
}
}
else if(H_ZF==1&&L_ZF==1)
{
xiaxian--;
if(xiaxian<=shangxian+1)
xiaxian=shangxian+1;
}
}
}
#define uint unsigned int
#define uchar unsigned char //宏定义
#define SET P3_1 //定义调整键
#define DEC P3_2 //定义减少键
#define ADD P3_3 //定义增加键
#define BEEP P3_6 //定义蜂鸣器
#define LED_H P1_6 //定义灯光报警
#define LED_L P1_7 //定义灯光报警
#define DQ P3_7 //定义DS18B20总线I/O
bit shanshuo_st; //闪烁间隔标志
bit beep_st; //蜂鸣器间隔标志
bit H_ZF=0,L_ZF=0;
signed char shangxian=35; //上限报警温度
signed char xiaxian=15; //下限报警温度
bit fuhao=0;
uint wendu=0;
uchar x=0;
uchar qian=0,bai=0,shi=0,ge=0;
sbit DIAN = P0^5; //小数点
uchar set_st=0; //状态标志
//uchar code LEDData[]={0xC0,0xF9,0xA4,0xB0,0x99,0x92,0x82,0xF8,0x80,0x90,0xff};
uchar code LEDData[]={0x5F,0x44,0x9D,0xDd,0xC6,0xD3,0xDB,0x47,0xDF,0xD7,0xCF,0xDA,0x9B,0xDC,0x9B,0x8B};
//============================================================================================
//====================================DS18B20=================================================
//============================================================================================
/*****延时子程序*****/
void Delay_DS18B20(int num)
{
while(num--) ;
}
/*****初始化DS18B20*****/
void Init_DS18B20(void)
{
unsigned char x=0;
DQ = 0; //DQ复位
Delay_DS18B20(8); //稍做延时
DQ = 1; //单片机将DQ拉低
Delay_DS18B20(80); //精确延时,大于480us
DQ = 0; //拉高总线
Delay_DS18B20(34);
}
/*****读一个字节*****/
unsigned char ReadOneChar(void)
{
unsigned char i=0;
unsigned char dat = 0;
for (i=8;i>0;i--)
{
DQ = 0; // 给脉冲信号
dat>>=1;
DQ = 1; // 给脉冲信号
if(DQ)
dat|=0x80;
Delay_DS18B20(4);
}
return(dat);
}
/*****写一个字节*****/
void WriteOneChar(unsigned char dat)
{
unsigned char i=0;
for (i=8; i>0; i--)
{
DQ = 1;
DQ = dat&&0x01;
Delay_DS18B20(5);
DQ = 0;
dat>>=1;
}
}
/*****读取温度*****/
unsigned int ReadTemperature(void)
{
unsigned char a=0;
unsigned char b=0;
unsigned int t=0;
float tt=0;
Init_DS18B20();
WriteOneChar(0xCC); //跳过读序号列号的操作
WriteOneChar(0x47); //启动温度转换
Init_DS18B20();
WriteOneChar(0xCC); //跳过读序号列号的操作
WriteOneChar(0xBF); //读取温度寄存器
a=ReadOneChar(); //读低8位
b=ReadOneChar(); //读高8位
t=b;
t<<=8;
t=t|a;
if(t&&0xf800)
{
t=~t+1;
fuhao=1;
}
else
fuhao=0;
tt=t*0.00625;
t= tt*10+0.5; //放大10倍输出并四舍五入
return(t);
}
//=====================================================================================
//=====================================================================================
//=====================================================================================
/*****延时子程序*****/
void Delay(uint num)
{
while( --num );
}
/*****初始化定时器0*****/
void InitTimer(void)
{
TMOD=0x10;
TL0=0x3c;
TH0=0xb0; //50ms(晶振12M)
EA=1; //全局中断开关
TR0=1;
ET0=1; //开启定时器0
IT0=1;
IT1=1;
}
/*****显示开机初始化等待画面*****/
void Disp_init(void)
{
P0 = 0x80; //显示----
P2 = 0xBF;
Delay(200);
P2 = 0xEF;
Delay(200);
P2 = 0xFB;
Delay(200);
P2 = 0xFE;
Delay(200);
P2 = 0xFF; //关闭显示
}
/*****显示温度子程序*****/
void Disp_Temperature(void) //显示温度
{
qian=wendu/1000;
bai=wendu%1000/100;
shi=wendu%1000/100/10;
ge=wendu%1000%100/10;
P0 = LEDData[ge]; //
P2 = 0xBF;
Delay(200);
P2=0xff;
P0=LEDData[shi]; //显示个位
P2 = 0xEF;
DIAN = 0; //显示小数点
Delay(200);
P2=0xff;
if((qian+bai)!=0)
P0 =LEDData[bai]; //显示bai位
else
P0=0xff;
P2 = 0xFB;
Delay(200);
P2=0xff;
if(qian!=0&&fuhao==0)
P0 =LEDData[qian]; //显示qian位
else if(qian==0&&fuhao==0)
P0=0xff;
else if(fuhao==1)
P0=0x80;
P2 = 0xFE;
Delay(200);
P2 = 0xff; //关闭显示
}
/*****显示报警温度子程序*****/
void Disp_alarm(uchar baojing)
{
P0 =LEDData[baojing%10]; //
P2 = 0xBF;
Delay(100);
P2=0xff;
P0 =LEDData[baojing%100/10]; //显示十位
P2 = 0xEF;
Delay(100);
P2=0xff;
if(set_st==1&&H_ZF==0&&baojing/100!=0)
P0 =LEDData[baojing/100]; //显示百位
else if(set_st==1&&H_ZF==0&&baojing/100==0)
P0=0xff;
else if(set_st==1&&H_ZF==1)
P0=0x80;
else if(set_st==2&&L_ZF==0&&baojing/100!=0)
P0 =LEDData[baojing/100]; //显示百位
else if(set_st==2&&L_ZF==0&&baojing/100==0)
P0=0xff;
else if(set_st==2&&L_ZF==1)
P0=0x80;
P2 = 0xFB;
Delay(100);
P2=0xff;
if(set_st==1)P0 =~0xCE;
else if(set_st==2)P0 =0x1A; //上限H、下限L标示
P2 = 0xFE;
Delay(100);
P2 = 0xff; //关闭显示
}
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