//====================================================================================
//文 件 名: Tem_Meature.c
//功能描述: 溫度測量驅動程序
//維護記錄: 2006-6-27   v1.0         by hongyan.Feng
//====================================================================================
#include "SPCE061A.h"

extern unsigned int ADGet(void);			//申明熱敏電阻上分到電壓的A/D轉換函數
unsigned int ADData,Counter;

float V[125]={1.576304,1.558983,1.541521,1.523924,1.506198,1.488351,1.470389,1.452319,1.434150,1.415889,
              1.397544,1.379122,1.360632,1.342083,1.323481,1.304837,1.286158,1.267453,1.248731,1.230000,
              1.230000,1.211269,1.192547,1.173842,1.155163,1.136519,1.117917,1.099368,1.080878,1.062456,
              1.044111,1.025850,1.007681,0.989611,0.971650,0.953802,0.936076,0.918479,0.901017,0.883696,
              0.866524,0.849505,0.832646,0.815952,0.799428,0.783080,0.766911,0.750927,0.735131,0.719528,
              0.704121,0.688913,0.673907,0.659107,0.644514,0.630131,0.615961,0.602004,0.588263,0.574738,
              0.561431,0.548342,0.535473,0.522823,0.510392,0.498181,0.486190,0.474417,0.462862,0.451525,
              0.440405,0.429499,0.418808,0.408329,0.398061,0.388003,0.378152,0.368507,0.359066,0.349826,
              0.340785,0.331941,0.323291,0.314834,0.306566,0.298485,0.290588,0.282873,0.275336,0.267976,
              0.260789,0.253772,0.246923,0.240239,0.233717,0.227353,0.221146,0.215092,0.209187,0.203431,
              0.197819,0.192348,0.187016,0.181821,0.176758,0.171826,0.167021,0.162341,0.157783,0.153345,
              0.149023,0.144815,0.140719,0.136734,0.132852,0.129076,0.125401,0.121825,0.118346,0.114962,
              0.111669,0.10847,0.105353,0.1023233,0.099378}; //用來存放0~125攝氏度對應熱敏電阻分到的標定電壓值
//====================================================================================
//語法格式: void Temp_Init(void) 
//功能描述: 溫度測量初始化
//入口參數: 無
//出口參數: 無
//維護記錄: 2006年6月27         by hongyan.Feng
//====================================================================================
void Temp_Init(void)                     
{
	*P_IOA_Dir &= 0xfffe;						//初始化IOA0(LINE1)為懸浮輸入口
	*P_IOA_Attrib |= 0x0001;
	*P_IOA_Data &= 0xfffe;
}
//====================================================================================
//語法格式: unsigned int Temp_Measure(void) 
//功能描述: 溫度測量,測量得到的數據存放在iTemp中,并語音播放這個數據
//入口參數: 無
//出口參數: 溫度值
//維護記錄: 2006年6月27         by hongyan.Feng
//====================================================================================
unsigned int Temp_Measure(void)
{
	unsigned int x,iTemp,Flag;					//ADData用來存放A/D轉換的數據,x用來循環,iTemp用來存放溫度值
	float iADData;								//iADData用來存放轉換后的電壓數據
	  
	iADData = 0.0000;							//初始化為0
	Flag = 1;
		
	Temp_Init();								//端口初始化
	
	*P_INT_Ctrl = 0x0010;
	__asm("int irq");
	
	while(Flag)
	{
		if(Counter==10)
		{
			__asm("int off");
			ADData = ADData/10;					//取10次測量數據的平均值  
			iADData = iADData+ADData*3.3/0x03ff;//把A/D轉換后數據計算成電壓,并進行累加 
			for(x=0;x<125;x++)					//查表,根據測量到的電壓計算溫度值
			{
 				if(iADData<V[x]&&iADData>V[x+1])
					iTemp = x;					//保存溫度值
				*P_Watchdog_Clear = 0x0001;			
			}
			Counter = 0;
			ADData = 0;
			Flag = 0;
		}
		*P_Watchdog_Clear = 0x0001;				//清看門狗
	}
	return iTemp;								//返回溫度值
}

//====================================================================================
//語法格式: void Delay(unsigned int i) 
//功能描述: 延時函數
//入口參數: i延時時間
//出口參數: 無
//維護記錄: 2006年6月27         by hongyan.Feng
//====================================================================================
void Delay(unsigned int i)
{
	int m,n;
	for(m=0;m<i;m++)
		for(n=0;n<0x03ff;n++)
			*P_Watchdog_Clear = 0x0001;
}