#include<AT89X52.H>
#include<intrins.h>

#define uint  unsigned int 
#define uchar unsigned char


/****************************************************
          Definition used for the LCD device
****************************************************/
#define Busy      0x80											//LCD忙閑檢測標(biāo)志字
#define LCD_Data  P0											//LCD數(shù)據(jù)口

//命令端口定義
sbit    LCD_RW  = P2^7;
sbit    LCD_RS  = P2^0;
sbit    LCD_E   = P2^1;

void    delay(uint);											//小延時(shí)函數(shù)
void    WriteDataLCD(uchar WDLCD);								//LCD寫數(shù)據(jù)函數(shù)
void    WriteCommandLCD(uchar WCLCD,BuysC);						//LCD寫命令函數(shù)
void    LCDInit(void);											//LCD初始化
void    DisplayOneChar(uchar X, uchar Y, uchar DData);			//顯示單個(gè)字符
void    DisplayListChar(uchar X, uchar Y, uchar code *DData);	//顯示字符串
uchar   ReadDataLCD(void);										//讀LCD數(shù)據(jù)
uchar   ReadStatusLCD(void);									//讀LCD狀態(tài)
void    Delay5Ms(void);											//5ms精確延時(shí)
void    Delay400Ms(void);										//400ms精確延時(shí)
/****************End of LCD Definition**************/



/****************************************************
           Definition used for DS18B20
****************************************************/
void  Init_DS18B20(void);			//1820初始化
void  WriteOneChar(uchar dat);		//1820寫函數(shù)
uchar ReadOneChar(void);			//1820讀函數(shù)
uint  ReadTemperature(void);		//1820讀溫度函數(shù)

/*************End of DS18B20 Definition*************/



/****************************************************
          Definition used for other function
****************************************************/
#define WavePerCircle  250			//每周期波數(shù)
#define GainP          80			//Kp
#define GainI          32			//Ki
#define GainD          32			//Kd

//PID計(jì)算用中間變量
static  uint  ErrorFormer1 = 0;
static  uint  ErrorFormer2 = 0;
static  uint  ErrorPresent = 0;

//端口定義
sbit    TestTemp  = P2^2;			//溫度檢測口
sbit    HeatDrive = P1^4;			//驅(qū)動(dòng)信號口

//函數(shù)定義
void    InitSys(void);				//系統(tǒng)初始化
void    KeyScan(void);				//鍵盤掃描
void    DisplaySetTemp(void);		//顯示設(shè)定溫度函數(shù)
void    DisplayNowTemp(void);		//顯示當(dāng)前溫度函數(shù)
void    ReadTemp(void);				//讀溫度函數(shù)
uint    PIDFunction(void);			//PID計(jì)算函數(shù)