基于单片机的火灾防盗监控系统的设计与仿真_毕业设计(论文)

附录B 单片机烧录程序

/*************************** 火灾模块主程序

*****************************/ #include \ #include \

extern uchar data Dis_play[5]; extern uint temp; uchar yanwu = 50; sbit baojing_CS=P1^0; void main() {

uchar temp_yanwu; do {

temp_yanwu = AD_Convert(); if(yanwu

tmpchange(); //温度转换 tem_deal(temp); //显示温度值 display(); } while(1); }

/******************************************** A/D,烟雾传感器模块

****************************************/ #include \#include \#include \

#define Wait1us _nop_();

#define Wait2us {_nop_();_nop_();} #define Wait4us {Wait2us;Wait2us;} #define Wait8us {Wait4us;Wait4us;} #define Wait10us {Wait8us;Wait2us;}

#define Wait30us {Wait10us;Wait8us;Wait4us;Wait2us;} #define N 100

/************定义接口总线**************/ sbit Clock = P1 ^ 2; //时钟口线

sbit DataOut = P1 ^ 3; //数据输出口线 sbit ChipSelect = P1 ^ 4; //片选口线

/************接口总线定义结束**********/ /*********函数名称：ADCSelChannel******** *功能：转换指定通道的模拟量为数字量

****************************************/ unsigned char ADCSelChannel(void) {

unsigned char ConvertValue = 0; unsigned char i;

ChipSelect = 1; //芯片复位 ChipSelect = 0; ChipSelect = 1; Clock = 0; Wait4us;

ChipSelect = 0; //芯片起始 Wait4us; //等待延时

for (i = 0; i < 8; i ++) //输入采样转换时钟 {

Clock = 1; Clock = 0; }

ChipSelect = 1; //开始转换 Wait10us; //等待转换结束

ChipSelect = 0; //读取转换结果 Wait4us;

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

Clock = 1;

ConvertValue <<= 1; if (DataOut) {

ConvertValue |= 0x1; }

Clock = 0; }

ChipSelect = 1;

return (ConvertValue); //返回转换结果 }

/************ADCSelChannel函数结束**********/ unsigned char TLC549_GetValue(void) { unsigned char ConvertValue; ChipSelect=0; //打开片选 ConvertValue=ADCSelChannel(); //读取转换后的8位AD值 ChipSelect=1; //关闭片选

Wait30us; //等待转换结束 最长17us return ConvertValue; //返回转换结果 }

unsigned char TLC549_Filter() //滤波函数 { char count,i,j; unsigned char value_buf[N]; unsigned char temp; int q; int sum=0; for (count=0;countvalue_buf[i+j] ) { temp = value_buf[j]; value_buf[j] = value_buf[i+j]; value_buf[i+j] = temp; }}} for(count=1;count

sum += value_buf[count];

return (unsigned char)(sum/(N-2));

}}}}

unsigned char AD_Convert(void) { unsigned char AD_Value; AD_Value=TLC549_Filter(); return AD_Value; }

/*********************************************** 温度传感器模块

**********************************************/ #include \ #include \

sbit DQ=P3^7; // 温度输入口

extern uint temp; // variable of temperature

定义一个变量

extern uchar flag1; // 定义一个标志,标志温度是负还是正,1为负,0

为正

sbit DIN=P0^7; // 小数点控制 uchar h; // 定义变量

uint temp; // variable of temperature 定义一个变量

uchar flag1; // 定义一个标志,标志温度是负还是正,1为负,0为正 uchar data Dis_play[5]={0x00,0x00,0x00,0x00,0x00};//显示单元数据，共4个数据和一

个运算暂用

uchar data temp_data[2]={0x00,0x00};//读出温度暂放 unsigned char code

table[]={0xc0,0xf9,0xa4,0xb0,0x99,0x92,0x82,0xf8,0x80,0x90,0xff,0xbf};

//共阳数码管段码表 \ \ \ \ \ \ \ \ \

\灭\ \

unsigned char code table1[]={0x40,0x79,0x24,0x30,0x19,0x12,0x02,0x78,0x00,0x10};//

带小数点的编码

//共阳数码管带小数点段码表 \ \ \ \ \ \ \ \ \

\ uchar code

ditab[16]={0x00,0x01,0x01,0x02,0x03,0x03,0x04,0x04,0x05,0x06,0x06,0x07,0x08,0x08,

0x09,0x09};

//小数部分对应十进制 \ \ \ \ \ \ \ \ //\ \ \ \ \ \ \ \

uchar code scan_con[4]={0x01,0x02,0x04,0x08}; //列扫描控制字

/***************************************/ /* 延时子程序 */ /***************************************/ void delay(uint i) //delay {

while(i--); }

/************************************************/ /* 初始化ds18b2子函数* */ /************************************************/ Init_DS18B20(void) {

uchar x=0;

DQ = 1; //DQ复位 delay(8); //稍做延时

DQ = 0; //单片机将DQ拉低 delay(80); //精确延时 大于 480us DQ = 1; //拉高总线 delay(14);