多级通信测温系统程序单片机

1、附1：源程序代码一、主机#include#define uchar unsigned char#define uint unsigned intsbit beep=p35;unsigned char code table=0x3f,0x06,0x5b,0x4f,0x66,0x6d,0x7d, 0x07,0x7f,0x6f,0x77,0x7c,0x39,0x5e,0x79,0x71;uchar recdata;uchar tmp;uint wei;sbit h1=p36;sbit l1=p05;sbit l2=p06;sbit l3=p07;void uart_int() tmod=0x21;

2、th1=0xfd; tl1=0xfd; scon=0xd0; th0=(65535-45872)/256; tl0=(65536-45872)%256; ea=1; tr1=1; tr0=1; et0=1; es=1; ea=1; ti=0; void delay(uint num) while(num-); void key() h1=0; if(l1=0) delay(10); if(l1=0) recdata=b; wei=11; while(!l1); if(l2=0) delay(10); if(l2=0) recdata=c; wei=12; while(!l2); void di

3、splay(uint temp)/显示程序 uchar a1,a2,a2t,a3; a1=temp/100; a2t=temp%100; a2=a2t/10; a3=a2t%10; p1=tablewei; p0=0xfe; delay(50); p1=tablea1;/显示十位 p0=0xfd; delay(50); p1=tablea2|0x80;/显示个位 p0=0xfb; delay(50); p1=tablea3;/显示分位 p0=0xf7; delay(50); void warn(uint s) uchar i; i=s; beep=0; p2=0x00; while(i-) d

4、isplay(tmp); beep=1; p2=0xff; i=s; while(i-) display(tmp); void deal(uint t) if(t50&t300) warn(10); void putc_to(uchar c) sbuf=c; while(ti=0) ti=0; void main() p1m0=0xff; p1m1=0x00; uart_int(); while(1) key(); display(tmp);tb8=1; putc_to(recdata);deal(tmp); com_int(void) interrupt 4 if(ri) tmp=sbuf;

5、 ri=0; void intt0() interrupt 1 uchar miao,a,num; th0=(65535-45872)/256; tl0=(65536-45872)%256; num+; if(num=20) num=0; miao+;if(miao=5) miao=0; a+; if(a=1) recdata=b; wei=11; if(a=2) recdata=c; wei=12; a=0; 2、 b从机#include #define uchar unsigned char#define uint unsigned intsbit dq=p22;sbit beep=p23

6、;sbit led=p20;uchar recdata; unsigned char code table=0x3f,0x06,0x5b,0x4f,0x66,0x6d,0x7d, 0x07,0x7f,0x6f,0x77,0x7c,0x39,0x5e,0x79,0x71;void delay(uint num) while(num-);/*函数名称：void init_ds18b20(void)返回值：无参数：无作用：初始化18b20*/ void init_ds18b20(void) char x=0; dq=1; delay(10);/稍作延时 dq=0; delay(800);/延时480

7、us 540us dq=1; /拉高总线 15-60us delay(50); x=dq;/读总线状态 为0复位成功，为1则不成功 delay(30); dq=1;/释放总线/*函数名称：uchar readonechar(void)返回值：uchar dat参数： 无作用：读1820一个字节*/uchar readonechar(void) uchar i; uchar dat=0; for(i=0;i=1; dq=1;/给脉冲 if(dq) dat|=0x80;/读1 / 读0右移处理 delay(20);/15us内读完一个数 return(dat); /*函数名称：void write

8、onechar(uchar dat)返回值：无参数： uchar dat作用：写1820一个字节*/*写ds18b20*/写0 60us读完，写1 30us 内读完void writeonechar(uchar dat) uint i; uchar j; bit testb; for(j=1;j1; if(testb) /write 1 dq=0; i+;i+;i+; dq=1; i=15;while(i0)i-; else dq=0; /write 0 i=15;while(i0)i-; dq=1; i+;i+;i+; /*函数名称：int readonetemperature(void)返

9、回值：int t参数： 无作用：读温度值*/void tmpchange(void) /ds18b20 begin change init_ds18b20(); delay(1); writeonechar(0xcc); / address all drivers on bus writeonechar(0x44); / initiates a single temperature conversionint readonetemperature(void) /*读取温度值*/ 每次读写均要先复位 uint a,b,t; float tep; init_ds18b20(); writeonec

10、har(0xcc);/发跳过rom命令 writeonechar(0xbe);/读寄存器，共九字节，前两字节为转换值 a=readonechar(); /a存低字节 b=readonechar(); /b存高字节 t=b; t=8;/高字节转换为10进制 t=t|a; tep=t*0.0625;/转换精度为0.0625/lsb t=tep*10+0.5;/保留1位小数并四舍五入*后面除10还原正确温度值） return(t);void display(uint temp)/显示程序 uchar a1,a2,a2t,a3; a1=temp/100; a2t=temp%100; a2=a2t/10

11、; a3=a2t%10; p1=table11; p0=0xfe; delay(800); p1=tablea1;/显示十位 p0=0xfd; delay(800); p1=tablea2|0x80;/显示个位 p0=0xfb; delay(800); p1=tablea3;/显示分位 p0=0xf7; delay(1);void warn(uint s) uchar i; i=s; beep=0; led=0; while(i-) display(readonetemperature(); beep=1; led=1; i=s; while(i-) display(readonetemper

12、ature(); void deal(uint t) if(t50&t300) warn(10); void init_com(void) tmod=0x20; pcon=0x00; scon=0xf0; th1=0xfd; tl1=0xfd; tr1=1; es=1; ea=1; ps=1; void comm(uint a) sbuf=a; while(!ti); ti=0;void main() p1m1=0x00; p1m0=0xff; init_com(); while(1) tmpchange(); display(readonetemperature(); deal(readon

13、etemperature(); com_int(void) interrupt 4 if(ri) recdata=sbuf; ri=0; if(rb8=1) if(recdata=b) sm2=0; tmpchange(); comm(readonetemperature(); display(readonetemperature(); deal(readonetemperature(); sm2=1; else sm2=1; 3、 c从机#include #define uchar unsigned char#define uint unsigned intsbit dq=p22;sbit

14、beep=p23;sbit led=p20;uchar recdata; unsigned char code table=0x3f,0x06,0x5b,0x4f,0x66,0x6d,0x7d, 0x07,0x7f,0x6f,0x77,0x7c,0x39,0x5e,0x79,0x71;void delay(uint num) while(num-);/*函数名称：void init_ds18b20(void)返回值：无参数：无作用：初始化18b20*/ void init_ds18b20(void) char x=0; dq=1; delay(10);/稍作延时 dq=0; delay(800

15、);/延时480us 540us dq=1; /拉高总线 15-60us delay(50); x=dq;/读总线状态 为0复位成功，为1则不成功 delay(30); dq=1;/释放总线/*函数名称：uchar readonechar(void)返回值：uchar dat参数： 无作用：读1820一个字节*/uchar readonechar(void) uchar i; uchar dat=0; for(i=0;i=1; dq=1;/给脉冲 if(dq) dat|=0x80;/读1 / 读0右移处理 delay(20);/15us内读完一个数 return(dat); /*函数名称：vo

16、id writeonechar(uchar dat)返回值：无参数： uchar dat作用：写1820一个字节*/*写ds18b20*/写0 60us读完，写1 30us 内读完void writeonechar(uchar dat) uint i; uchar j; bit testb; for(j=1;j1; if(testb) /write 1 dq=0; i+;i+;i+; dq=1; i=15;while(i0)i-; else dq=0; /write 0 i=15;while(i0)i-; dq=1; i+;i+;i+; /*函数名称：int readonetemperatur

17、e(void)返回值：int t参数： 无作用：读温度值*/void tmpchange(void) /ds18b20 begin change init_ds18b20(); delay(1); writeonechar(0xcc); / address all drivers on bus writeonechar(0x44); / initiates a single temperature conversionint readonetemperature(void) /*读取温度值*/ 每次读写均要先复位 uint a,b,t; float tep; init_ds18b20(); w

18、riteonechar(0xcc);/发跳过rom命令 writeonechar(0xbe);/读寄存器，共九字节，前两字节为转换值 a=readonechar(); /a存低字节 b=readonechar(); /b存高字节 t=b; t=8;/高字节转换为10进制 t=t|a; tep=t*0.0625;/转换精度为0.0625/lsb t=tep*10+0.5;/保留1位小数并四舍五入*后面除10还原正确温度值） return(t);void display(uint temp)/显示程序 uchar a1,a2,a2t,a3; a1=temp/100; a2t=temp%100; a2=a2t/10; a3=a2t%10; p1=table11; p0=0xfe; delay(800); p1=tablea1;/显示十位 p0=0xfd; delay(800); p1=tablea2|0x80;/显示个位 p0=0xfb; delay(800); p1=tablea3;/显示分位 p0=0xf7; delay(1);void warn(uint s) uchar i; i=s;