#include?“DHT111.h“
#include?
#include?



sbit?DATA?=?P1^1;
sbit?SCK?=?P1^0;



/***********************************************************************************************************************************************************/

//SHT11程序


#define?noACK?0				//繼續傳輸數據，用于判斷是否結束通訊
#define?ACK???1?????????????//結束數據傳輸；
							//地址??命令??讀/寫
#define?STATUS_REG_W?0x06???//000???0011????0
#define?STATUS_REG_R?0x07???//000???0011????1
#define?MEASURE_TEMP?0x03???//000???0001????1
#define?MEASURE_HUMI?0x05???//000???0010????1
#define?RESET????????0x1e???//000???1111????0



//寫字節程序
char?s_write_byte（unsigned?char?value）???
{?
	unsigned?char?ierror=0;?
	for?（i=0x80;i>0;i/=2）?????????????//shift?bit?for?masking?高位為1，循環右移
	{?
		if?（i&value）?DATA=1;??????????//和要發送的數相與，結果為發送的位
????	else?DATA=0;????????????????????????
????	SCK=1;??????????????????????????
????	_nop_（）;_nop_（）;_nop_（）;????????//延時3us?
????	SCK=0;
	}
	DATA=1;???????????????????????????//釋放數據線
	SCK=1;????????????????????????????
	error=DATA;???????????????????????//檢查應答信號，確認通訊正常
	_nop_（）;_nop_（）;_nop_（）;
	SCK=0;????????
	DATA=1;
	return?error;?????????????????????//error=1?通訊錯誤
}

//讀字節程序
char?s_read_byte（unsigned?char?ack）
//----------------------------------------------------------------------------------
{?
	unsigned?char?ival=0;
	DATA=1;???????????????????????????//釋放數據線
	for（i=0x80;i>0;i>>=1）?????????????//高位為1，循環右移
	{?
		SCK=1;?????????????????????????
????	if（DATA）?val=（val|i）;????????//讀一位數據線的值?
????	SCK=0;???????
	}
	DATA=!ack;????????????????????????//如果是校驗，讀取完后結束通訊；
	SCK=1;????????????????????????????
	_nop_（）;_nop_（）;_nop_（）;??????????//延時3us?
	SCK=0;???
	_nop_（）;_nop_（）;_nop_（）;???????
	DATA=1;???????????????????????????//釋放數據線
	return?val;
}

//啟動傳輸
void?s_transstart（void）
//?generates?a?transmission?start?
//???????_____?????????________
//?DATA:??????|_______|
//???????????___?????___
//?SCK?:?___|???|___|???|______
{?
???	DATA=1;?SCK=0;???????????????????//準備
???	_nop_（）;
??	SCK=1;
???	_nop_（）;
???	DATA=0;
???	_nop_（）;
??	SCK=0;?
??	?_nop_（）;_nop_（）;_nop_（）;
???	SCK=1;
???	_nop_（）;
??	DATA=1;?????
??	_nop_（）;
???	SCK=0;?????
}


//連接復位
void?s_connectionreset（void）
//?communication?reset:?DATA-line=1?and?at?least?9?SCK?cycles?followed?by?transstart
//???????_____________________________________________________?????????________
//?DATA:??????????????????????????????????????????????????????|_______|
//??????????_????_????_????_????_????_????_????_????_????????___?????___
//?SCK?:?__|?|__|?|__|?|__|?|__|?|__|?|__|?|__|?|__|?|______|???|___|???|______
{?
	unsigned?char?i;?
	DATA=1;?SCK=0;????????????????????//準備
	for（i=0;i<9;i++）??????????????????//DATA保持高，SCK時鐘觸發9次，發送啟動傳輸，通迅即復位
	{?
		SCK=1;
????	SCK=0;
	}
	s_transstart（）;???????????????????//啟動傳輸
}


//軟復位程序
char?s_softreset（void）
//?resets?the?sensor?by?a?softreset?
{?
	unsigned?char?e

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----
?????目錄???????????0??2017-05-17?16:07??電爐絲控制\
?????文件??????128140??2017-05-17?14:16??電爐絲控制\Last?Loaded?pd.DBK
?????文件??????130642??2017-05-17?16:07??電爐絲控制\pd.DSN
?????文件????????1102??2017-05-17?16:07??電爐絲控制\pd.PWI
?????目錄???????????0??2017-05-17?14:17??電爐絲控制\project\
?????文件????????1187??2017-04-20?03:47??電爐絲控制\project\ADC0832.h
?????文件????????6629??2017-04-14?23:28??電爐絲控制\project\DHT111.c
?????文件?????????280??2017-04-14?20:09??電爐絲控制\project\DHT111.h
?????文件???????10757??2017-04-20?05:05??電爐絲控制\project\DHT111.LST
?????文件???????10192??2017-04-20?05:05??電爐絲控制\project\DHT111.OBJ
?????文件????????9732??2017-04-14?20:54??電爐絲控制\project\DS18B20.c
?????文件?????????218??2017-04-14?23:24??電爐絲控制\project\DS18B20.h
?????文件???????17240??2017-04-20?05:05??電爐絲控制\project\DS18B20.LST
?????文件????????5463??2017-04-20?05:05??電爐絲控制\project\DS18B20.OBJ
?????文件???????77758??2012-10-07?10:08??電爐絲控制\project\Last?Loaded?SHT11.DBK
?????文件????????4193??2017-05-17?14:07??電爐絲控制\project\lcd.c
?????文件????????1170??2017-05-17?13:40??電爐絲控制\project\lcd.h
?????文件????????7681??2017-05-17?14:07??電爐絲控制\project\lcd.LST
?????文件????????8124??2017-05-17?14:07??電爐絲控制\project\lcd.OBJ
?????文件??????????42??2017-05-17?14:07??電爐絲控制\project\lcd.__i
?????文件???????77758??2012-10-07?11:09??電爐絲控制\project\SHT11.DSN
?????文件?????????792??2012-10-07?15:57??電爐絲控制\project\SHT11.PWI
?????文件???????20042??2017-05-17?14:14??電爐絲控制\project\SHT11TEST
?????文件????????3118??2017-05-17?14:14??電爐絲控制\project\SHT11TEST.C
?????文件???????11848??2017-05-17?14:14??電爐絲控制\project\SHT11TEST.hex
?????文件??????????62??2017-05-17?14:14??電爐絲控制\project\SHT11TEST.lnp
?????文件????????6120??2017-05-17?14:14??電爐絲控制\project\SHT11TEST.LST
?????文件???????18013??2017-05-17?14:14??電爐絲控制\project\SHT11TEST.M51
?????文件???????10901??2017-05-17?14:14??電爐絲控制\project\SHT11TEST.OBJ
?????文件???????17136??2017-05-17?14:14??電爐絲控制\project\SHT11TEST.plg
?????文件???????74365??2017-05-17?14:17??電爐絲控制\project\SHT11TEST.uvgui.lifu
............此處省略8個文件信息