溫度計5218467714

1、電子信息工程學院實驗課程：單片機綜合性實驗報告 實驗名稱：數(shù)字溫度計的設計一、實驗目的本實驗是綜合性、設計性實驗，要求2個同學一組（自由組合），可采用Proteus+Keil仿真，也可制作硬件，實驗主要利用課余時間完成。主要是設計一個數(shù)字溫度計，將測得的溫度在顯示系統(tǒng)中輸出，并傳輸給計算機二、設計原理實驗電路圖 圖一三、系統(tǒng)組成框架圖 圖二四、 程序流程圖五、實驗程序#include <reg52.h>#include <intrins.h>#include<math.h>#define uchar unsigned char#define uint uns

2、igned intuchar temp;#define LCDduan P0sbit RS = P10;sbit RW = P11;sbit LCDEN = P12;sbit ledgao=P22;sbit leddi=P23;sbit DQ = P24;void delay1();void delay2(uchar a);void delay3();void SendByte(temp);void writeComm(uchar comm) RS = 0; RW=0; P0 = comm; LCDEN = 1; delay1(); LCDEN = 0; delay2(1);void writ

3、eData(uchar dat) RS = 1; RW=0; P0 = dat; LCDEN = 1; delay1(); LCDEN = 0; delay2(1);void init() TMOD = 0x20; SCON = 0x50; TH1 = 0xFA; TL1 = TH1; PCON = 0x80; void sendChangeCmd() DQInit(); DQWait(); delay2(1); writeByte(0xcc); writeByte(0x44); void sendReadCmd() DQInit(); DQWait(); delay2(1); writeBy

4、te(0xcc); writeByte(0xbe); int value; int getTmpValue() uint tmpvalue; float t; uchar low, high; sendReadCmd(); low = readByte(); high = readByte(); tmpvalue = high; tmpvalue <<= 8; tmpvalue |= low; value = tmpvalue; t = value * 0.0625; value = t * 100 + (value > 0 ? 0.5 : -0.5); return val

5、ue; void display(int v) uchar count; uchar datas = 0, 0, 0, 0, 0; uint tmp = abs(v); datas0 = tmp / 10000;void delay3() unsigned char a,b,c; for(c=13;c>0;c-) for(b=247;b>0;b-) for(a=142;a>0;a-); _nop_; TR1 = 1; ES = 1; EA = 1; writeComm(0x38); writeComm(0x0c); writeComm(0x06); writeComm(0x0

6、1); void writeString(uchar * str, uchar length) uchar i; for(i = 0; i < length; i+) writeData(stri); void DQInit() uint t; DQ = 0; t = 100; while(t>0) t-; DQ = 1; t = 4; while(t>0) t-;void DQWait() uint t; while(DQ); while(DQ); t = 4; while(t > 0) t-;bit readBit() uint t; bit b; DQ = 0;

7、t+; DQ = 1; t+; t+; b = DQ; datas1 = tmp % 10000 / 1000; datas2 = tmp % 1000 / 100; datas3 = tmp % 100 / 10; datas4 = tmp % 10; writeComm(0xc0+3); if(v < 0) writeString("- ", 2); else writeString("+ ", 2); if(datas0 != 0) writeData('0'+datas0); for(count = 1; count !=

8、5; count+) writeData('0'+datascount); if(count = 2) writeData('.'); void main() float set_high; float set_low; uchar table = " Now Tem Is" ledgao=0; leddi=0; set_high=50; set_low=10; sendChangeCmd(); init(); writeComm(0x80); void SendByte(temp) temp=value/100; SBUF = temp;

9、while(!TI); TI = 0;delay3(); t = 8;while(t>0) t-; return b;unsigned char readByte() uint x; uchar y, dat; dat = 0; for(x=0; x<8; x+) y = readBit(); dat = (y << 7) | (dat >> 1); return dat;void writeByte(uchar dat) uint i; uchar j; bit b; for(j = 0; j < 8; j+) b = dat & 0x01;

10、 dat >>= 1; if(b) DQ = 0; i+; i+; DQ = 1; i = 8; while(i>0) i-; else DQ = 0; i = 8; while(i>0) i-; DQ = 1;i+; i+; writeString(table, 16); while(1) delay2(1000); writeComm(0xc0); display(getTmpValue(); sendChangeCmd(); if(value/100>set_high) leddi=0; ledgao=1; delay2(1); else if(value/100<set_low) leddi=1; ledgao=0; delay2(1); else leddi=0; ledgao=0; SendByte(temp); void delay1() _nop_();void delay2(uchar a) uchar x, y; for(x = a; x > 0; x-) for(y = 110; y > 0; y-); 六、實驗總結本次綜合性實驗報告整體感覺有點難，很多資料要查，在查資料，請教同學的過程中，感覺自己學會了很多知識。本次實驗程序有很多板塊構成，每個