温度采集报警系统C语言程序

#include

#include

#define uchar unsigned char

#define uint unsigned int

uint temp4; // variable of temperature

sbit DS4=P1^3; //define interface

void delay4(uchar count)

{

while(count>0) count--;

}

void reset4(void) //send reset and initialization command {

DS4=0;

delay4(100); DS4=1;

delay4(4);

delay4(200);

}

bit read_bit4(void) //read a bit

bit temp;

DS4=0;

_nop_();

DS4=1;

_nop_();

temp=DS4;

delay4(200);

return temp;

}

uchar read_byte4(void) //read a byte date

{

uchar i,byte=0;

bit j;

for(i=0;i<8;i++)

{

byte=_cror_(byte ,1);

j=read_bit4();

if(j==0) byte=byte|0x00;

else byte=byte|0x80;

}

return byte;

}

void write_byte4(uchar command) //write a byte to ds18b20 {

uchar i;

for(i=0;i<8;i++) {

if((command & 0x01)==0)

{ DS4=0;

delay4(8);

DS4=1;

_nop_();

}

Else

DS4=0;

_nop_();

DS4=1;

delay4(8);

}

command=_cror_(command,1);

}

}

void tmpchange4(void) //DS18B20 begin change

{

reset4();

write_byte4(0xcc); //直接向18b20发送温度变换命令

write_byte4(0x44); //启动18b20进行温度转换

}

uint tmp4() //get the temperature

{

float tt;

uchar a,b;

reset4();

write_byte4(0xcc); //直接向18b20发送温度变换命令

write_byte4(0xbe); //读取温度寄存器的温度值

a=read_byte4();//读低八位

b=read_byte4();//读高八位

temp4=b;

temp4<<=8; //two byte compose a int variable

temp4=temp4|a;

tt=temp4*0.0625;

temp4=tt*10+0.5;

return temp4

}

#define uchar unsigned char

#define uint unsigned int

sbit rs=P2^0;

sbit lcden=P2^2;

#define lcd_mode 0x38

#define display_cursor 0x0f

#define undisplay_cursor 0x0c

char code int_to_char[]="0123456789";

//******************************************************** void delay(uint x)

{

uint a,b; for(a=x;a>0;a--) for(b=10;b>0;b--);

}

//******************************************************** void write_com(uchar com) //写命令

{

P0=com;

rs=0;

lcden=0;

delay(10);

lcden=1;

lcden=0;

}

//******************************************************** void write_date(uchar date) //写数据

{

P0=date;

rs=1;

lcden=0;

delay(10);

lcden=1;

delay(10);

lcden=0;

}

//******************************************************** void init_lcd(void) //初始化lcd1602

{

delay(15);

write_com(lcd_mode);

delay(20);

write_com(undisplay_cursor);

delay(20);

write_com(0x06); //let cursor move

delay(20);

write_com(0x01); //clear lcd

delay(20);

}

//******************************************************** void display_string(char *p) //写字符串 { while(*p)

{

write_date(*p);

delay(20);

p++;

}

}

//******************************************************** void gotoxy(uchar x,uchar y)

{

if(x==1)

write_com(0x80+y);

else

write_com(0xc0+y);

}

//******************************************************** void display_data(char number)

{

uchar x,y;

x=number/10;

y=number%10;//y=number-10*x;

write_date(int_to_char[x]);

write_date(int_to_char[y]);

}

#include

#include

#define uchar unsigned char

#define uint unsigned int

uint temp; // variable of temperature

sbit DS=P1^0; //define interface

void delay1(uchar count)

{

while(count>0) count--;

}

void reset(void) //send reset and initialization command {

DS=0;

delay1(100);

DS=1;

delay1(4);

delay1(200);

}

bit read_bit(void) //read a bit

{

bit temp;

DS=0;

_nop_();

DS=1;

_nop_();

temp=DS;

delay1(200);

return temp;

}

uchar read_byte(void) //read a byte date

{

uchar i,byte=0;

bit j;

for(i=0;i<8;i++)

{

byte=_cror_(byte ,1);

j=read_bit();

if(j==0) byte=byte|0x00;

else byte=byte|0x80;

}

return byte;

}

void write_byte(uchar command) //write a byte to ds18b20 {

uchar i;

for(i=0;i<8;i++)

{

if((command & 0x01)==0)

{

DS=0;

delay1(8);

DS=1;

}

else

{

DS=0;

_nop_();

DS=1;

delay1(8);

}

command=_cror_(command,1);

}

}

void tmpchange(void) //DS18B20 begin change

{

reset();

write_byte(0xcc); //直接向18b20发送温度变换命令write_byte(0x44); //启动18b20进行温度转换

}

uint tmp() //get the temperature

{

float tt;

uchar a,b;

reset();

write_byte(0xcc); //直接向18b20发送温度变换命令

write_byte(0xbe); //读取温度寄存器的温度值

a=read_byte();//读低八位

b=read_byte();//读高八位

temp=b;

temp<<=8; //two byte compose a int variable

temp=temp|a;

tt=temp*0.0625;

temp=tt*10+0.5;

return temp;

}

#include #include

#define uchar unsigned char #define uint unsigned int

uint temp2; // variable of temperature

sbit DS2=P1^1; //define interface

void delay2(uchar count)

{

while(count>0) count--;

}

void reset2(void) //send reset and initialization command {

DS2=0;

delay2(100);

DS2=1;

delay2(4);

delay2(200);

}

bit read_bit2(void) //read a bit

{

DS2=0;

_nop_();

DS2=1;

_nop_();

temp=DS2;

delay2(200);

return temp;

}

uchar read_byte2(void) //read a byte date

{

uchar i,byte=0;

bit j;

for(i=0;i<8;i++)

{

byte=_cror_(byte ,1);

j=read_bit2();

if(j==0) byte=byte|0x00;

else byte=byte|0x80;

}

return byte;

}

void write_byte2(uchar command) //write a byte to ds18b20 {

uchar i;

for(i=0;i<8;i++)

{

if((command & 0x01)==0)

{

DS2=0;

delay2(8);

DS2=1;

_nop_(); }

else

{

DS2=0;

_nop_();

DS2=1;

delay2(8);

}

command=_cror_(command,1);

}

}

void tmpchange2(void) //DS18B20 begin change

{

reset2();

write_byte2(0xcc); //直接向18b20发送温度变换命令

write_byte2(0x44); //启动18b20进行温度转换 } uint tmp2() //get the temperature

{

float tt;

uchar a,b;

reset2();

write_byte2(0xcc); //直接向18b20发送温度变换命令write_byte2(0xbe); //读取温度寄存器的温度值

a=read_byte2();//读低八位

b=read_byte2();//读高八位

temp2=b;

temp2<<=8; //two byte compose a int variable

temp2=temp2|a;

tt=temp2*0.0625;

temp2=tt*10+0.5;

return temp2

}

#include

#include

#define uchar unsigned char

#define uint unsigned int

uint temp3; // variable of temperature

sbit DS3=P1^2; //define interface

void delay3(uchar count)

{

while(count>0) count--;

}

void reset3(void) //send reset and initialization command {

DS3=0;

delay3(100);

DS3=1;

delay3(4);

delay3(200); }

bit read_bit3(void) //read a bit

{

bit temp;

DS3=0;

_nop_();

DS3=1;

_nop_();

temp=DS3;

delay3(200);

return temp;

}

uchar read_byte3(void) //read a byte date

{

uchar i,byte=0;

bit j;

for(i=0;i<8;i++)

{

byte=_cror_(byte ,1);

j=read_bit3();

if(j==0) byte=byte|0x00;

else byte=byte|0x80;

}

return byte;

}

void write_byte3(uchar command) //write a byte to ds18b20

uchar i;

for(i=0;i<8;i++)

{

if((command & 0x01)==0)

{

DS3=0;

delay3(8);

DS3=1;

_nop_();

}

else

{

DS3=0;

_nop_();

DS3=1;

delay3(8);

}

command=_cror_(command,1);

}

}

void tmpchange3(void) //DS18B20 begin change {

reset3();

write_byte3(0xcc); //直接向18b20发送温度变换命令 write_byte3(0x44); //启动18b20进行温度转换

}

uint tmp3() //get the temperature

{

float tt;

uchar a,b;

reset3();

write_byte3(0xcc); //直接向18b20发送温度变换命令write_byte3(0xbe); //读取温度寄存器的温度值

a=read_byte3();//读低八位

b=read_byte3();//读高八位

emp3=b;

temp3<<=8; //two byte compose a int variable temp3=temp3|a;

tt=temp3*0.0625;

temp3=tt*10+0.5;

return temp3

}

#include

#include

#define uchar unsigned char

#define uint unsigned int

uint temp4; // variable of temperature

sbit DS4=P1^3; //define interface

void delay4(uchar count)

{

while(count>0) count--;

void reset4(void) //send reset and initialization command {

DS4=0;

delay4(100);

DS4=1;

delay4(4);

delay4(200); }

bit read_bit4(void) //read a bit

{

bit temp;

DS4=0;

_nop_();

DS4=1;

_nop_();

temp=DS4;

delay4(200);

return temp;

}

uchar read_byte4(void) //read a byte date

{

uchar i,byte=0;

bit j;

for(i=0;i<8;i++)

{

byte=_cror_(byte ,1);

j=read_bit4();

if(j==0) byte=byte|0x00;

else byte=byte|0x80;

}

return byte;

}

void write_byte4(uchar command) //write a byte to ds18b20 {

uchar i;

for(i=0;i<8;i++)

{

if((command & 0x01)==0)

{

DS4=0;

delay4(8);

DS4=1;

_nop_();

}

else

{

DS4=0;

_nop_();

DS4=1;

delay4(8);

}

command=_cror_(command,1);

}

void tmpchange4(void) //DS18B20 begin change

{

reset4();

write_byte4(0xcc); //直接向18b20发送温度变换命令write_byte4(0x44); //启动18b20进行温度转换

}

uint tmp4() //get the temperature

{

float tt;

uchar a,b;

reset4();

write_byte4(0xcc); //直接向18b20发送温度变换命令write_byte4(0xbe); //读取温度寄存器的温度值

a=read_byte4();//读低八位

b=read_byte4();//读高八位

temp4=b;

temp4<<=8; //two byte compose a int variable

temp4=temp4|a;

tt=temp4*0.0625;

temp4=tt*10+0.5;

return temp4

}