多級(jí)通信測(cè)溫系統(tǒng)程序單片機(jī).doc

此文檔收集于網(wǎng)絡(luò)，如有侵權(quán)，請(qǐng)聯(lián)系網(wǎng)站刪除附1：源程序代碼一、主機(jī)#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; 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 display(uint temp)/顯示程序 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;/顯示十位 P0=0XFD; delay(50); P1=tableA2|0x80;/顯示個(gè)位 P0=0XFB; delay(50); P1=tableA3;/顯示分位 P0=0XF7; delay(50); void warn(uint s) uchar i; i=s; beep=0; P2=0x00; while(i-) display(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; 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從機(jī)#include #define uchar unsigned char#define uint unsigned intsbit DQ=P22;sbit 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-);/*函數(shù)名稱：void Init_DS18B20(void)返回值：無(wú)參數(shù)：無(wú)作用：初始化18B20*/ void Init_DS18B20(void) char x=0; DQ=1; delay(10);/稍作延時(shí) DQ=0; delay(800);/延時(shí)480us 540us DQ=1; /拉高總線 15-60us delay(50); x=DQ;/讀總線狀態(tài) 為0復(fù)位成功，為1則不成功 delay(30); DQ=1;/釋放總線/*函數(shù)名稱：uchar ReadOneChar(void)返回值：uchar dat參數(shù)： 無(wú)作用：讀1820一個(gè)字節(jié)*/uchar ReadOneChar(void) uchar i; uchar dat=0; for(i=0;i=1; DQ=1;/給脈沖 if(DQ) dat|=0x80;/讀1 / 讀0右移處理 delay(20);/15us內(nèi)讀完一個(gè)數(shù) return(dat); /*函數(shù)名稱：void WriteOneChar(uchar dat)返回值：無(wú)參數(shù)： uchar dat作用：寫1820一個(gè)字節(jié)*/*寫DS18B20*/寫0 60us讀完，寫1 30us 內(nèi)讀完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+; /*函數(shù)名稱：int ReadOneTemperature(void)返回值：int t參數(shù)： 無(wú)作用：讀溫度值*/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) /*讀取溫度值*/ 每次讀寫均要先復(fù)位 uint a,b,t; float tep; Init_DS18B20(); WriteOneChar(0xcc);/發(fā)跳過ROM命令 WriteOneChar(0xbe);/讀寄存器，共九字節(jié)，前兩字節(jié)為轉(zhuǎn)換值 a=ReadOneChar(); /a存低字節(jié) b=ReadOneChar(); /b存高字節(jié) t=b; t=8;/高字節(jié)轉(zhuǎn)換為10進(jìn)制 t=t|a; tep=t*0.0625;/轉(zhuǎn)換精度為0.0625/LSB t=tep*10+0.5;/保留1位小數(shù)并四舍五入*后面除10還原正確溫度值） return(t);void display(uint temp)/顯示程序 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;/顯示十位 P0=0XFD; delay(800); P1=tableA2|0X80;/顯示個(gè)位 P0=0XFB; delay(800); P1=tableA3;/顯示分位 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(ReadOneTemperature(); 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(ReadOneTemperature(); 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從機(jī)#include #define uchar unsigned char#define uint unsigned intsbit DQ=P22;sbit 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-);/*函數(shù)名稱：void Init_DS18B20(void)返回值：無(wú)參數(shù)：無(wú)作用：初始化18B20*/ void Init_DS18B20(void) char x=0; DQ=1; delay(10);/稍作延時(shí) DQ=0; delay(800);/延時(shí)480us 540us DQ=1; /拉高總線 15-60us delay(50); x=DQ;/讀總線狀態(tài) 為0復(fù)位成功，為1則不成功 delay(30); DQ=1;/釋放總線/*函數(shù)名稱：uchar ReadOneChar(void)返回值：uchar dat參數(shù)： 無(wú)作用：讀1820一個(gè)字節(jié)*/uchar ReadOneChar(void) uchar i; uchar dat=0; for(i=0;i=1; DQ=1;/給脈沖 if(DQ) dat|=0x80;/讀1 / 讀0右移處理 delay(20);/15us內(nèi)讀完一個(gè)數(shù) return(dat); /*函數(shù)名稱：void WriteOneChar(uchar dat)返回值：無(wú)參數(shù)： uchar dat作用：寫1820一個(gè)字節(jié)*/*寫DS18B20*/寫0 60us讀完，寫1 30us 內(nèi)讀完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+; /*函數(shù)名稱：int ReadOneTemperature(void)返回值：int t參數(shù)： 無(wú)作用：讀溫度值*/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) /*讀取溫度值*/ 每次讀寫均要先復(fù)位 uint a,b,t; float tep; Init_DS18B20(); WriteOneChar(0xcc);/發(fā)跳過ROM命令 WriteOneChar(0xbe);/讀寄存器，共九字節(jié)，前兩字節(jié)為轉(zhuǎn)換值 a=ReadOneChar(); /a存低字節(jié) b=ReadOneChar(); /b存高字節(jié) t=b; t=8;/高字節(jié)轉(zhuǎn)換為10進(jìn)制 t=t|a; tep=t*0.0625;/轉(zhuǎn)換精度為0.0625/LSB t=tep*10+0.5;/保留1位小數(shù)并四舍五入*后面除10還原正確溫度值） return(t);void display(uint temp)/顯示程序 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;/顯示十位 P0=0XFD; delay(800); P1=tableA2|0X80;/顯示個(gè)位 P0=0XFB; delay(800); P1=tableA3;/顯示分位 P0=0XF7; delay(1);void warn(uint s) uchar i; i=s; beep=0;