#include <reg51.h>
#include <Intrins.h>
#include <LCD1602.H>
#include <math.H>

#define C02_write 0xa0 //c02寫(xiě)地址 
#define C02_read  0xa1 //c02讀地址
#define uchar unsigned char
#define uint unsigned int

sbit MAX6675_CS=P1^2;    //MAX6675冷端溫度補(bǔ)償，將K型熱電偶信號(hào)轉(zhuǎn)為數(shù)字信號(hào)
sbit MAX6675_SCK=P1^1;
sbit MAX6675_SO=P1^0; 
sbit normal=P2^3;        //LED燈表示溫度正常，過(guò)高，過(guò)低
sbit upper=P2^4;
sbit lower=P2^5;
sbit direction=P2^6;    
sbit stop=P2^7;
sbit SCL=P1^3;    //EEPROM，256byte
sbit SDA=P1^4;
sbit beep=P1^7;   //蜂鳴器
bit ack,flag=0,flag1=0;

uint  tz; 
int sth=0,stl=0,t_zhi=0;
uchar data temp1[]={'+','1','2','0','0',0},temp2[]={'-' ,'1','0','0','0',0};
uchar data temp[7];
char code keytab[]={0xEE,0xDE,0xBE,0x7E,0xED,0xDD,0xBD,0x7D,0xEB,0xDB,0xBB,0x7B,0xE7,0xD7,0xB7,0x77};
unsigned char code str1[]={"STH      STL"}; //system temperature high,low
unsigned char code str2[]={"PARAMTER STEUP"};
unsigned char code str3[]={"              "};