#include
#include?“DHT11.h“

unsigned?char?DATA;

#define?PBIT	BIT4
#define?PIN		P1IN
#define?POUT	P1OUT
#define?PDIR	P1DIR

#define?DIR_IN	PDIR&=~PBIT
#define?DATA_H	PDIR|=PBIT;POUT|=PBIT
#define?DATA_L	PDIR|=PBIT;POUT&=~PBIT
#define?DATA_IN	（PIN&PBIT）
????

void?delayns（unsigned?int?ns）?????//延時子函數
{
	while（ns--）;?
}



//數據格式:8bit濕度整數數據+8bit濕度小數數據+8bi溫度整數數據+8bit溫度小數數據+8bit校驗和
unsigned?char?getData（unsigned?char?Data[5]）
{
	unsigned?char?ijk;
	unsigned?int?overtime;
	unsigned?int?t;
	unsigned?int?threshold;
	

	DATA_H;
	
	//主機發(fā)送開始信號
	DATA_L;
	delayns（0x07ff）;?//?>=?18ms
	
	DATA_H;//主機拉高數據線，>=20us
	delayns（5）;?
	
	DIR_IN;
	overtime=0xffff;
	while（DATA_IN==PBIT?&&?overtime>0）?overtime--;?//等待高電平結束，即等待?DHT?的低電平響應信號
	if（overtime==0）?return?1;
	delayns（1）;?//?>=?20us?--?40us

	
	overtime=0xffff;
	while（DATA_IN==0?&&?overtime>0）overtime--;	//等待低電平結束
	if（overtime==0）?return?2;

	overtime=0xffff;
	while（DATA_IN==PBIT?&&?overtime>0）overtime--;?//等待高電平結束
	if（overtime==0）?return?3;
	threshold=（65536-overtime）;
	threshold>>=1;
	
	for（j=0;j<5;j++）
	{
		k=0;
		for（i=0;i<8;i++）
		{
			t=0;
			k=k<<1;
			while（DATA_IN==0?&&?t<0xffff）?t++;	//等待低電平結束
			if（t==0xffff）
			{
				Data[0]=i;
				return?4;
			}
			
			t=0;
			while（DATA_IN==PBIT?&&?t<0xffff）?t++;?//等待高電平結束
			if（t==0xffff）
			{
				Data[0]=i;
				return?5;
			}
			//Data[i+j*8]=t;
			if（t>=threshold）
				k|=0x01;
		}
		Data[j]=k;
	}
	k=0;
	for（i=0;i<4;i++）
	{
		k+=Data[i];
	}
	if（k!=Data[4]）
	{
		return?6;
	}
	return?0;
}
//*/

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----
?????目錄???????????0??2013-11-27?10:52??nrf24l01_430g2231_v2\
?????文件???????19032??2012-02-20?16:17??nrf24l01_430g2231_v2\Backup?of?new_430g2231_nrf24l01.ewd
?????文件???????47845??2012-02-21?16:58??nrf24l01_430g2231_v2\Backup?of?new_430g2231_nrf24l01.ewp
?????目錄???????????0??2013-11-27?09:51??nrf24l01_430g2231_v2\Debug\
?????目錄???????????0??2013-11-27?09:56??nrf24l01_430g2231_v2\Debug\Exe\
?????文件???????23500??2013-11-27?10:52??nrf24l01_430g2231_v2\Debug\Exe\new_430g2231_nrf24l01.d43
?????目錄???????????0??2013-11-27?09:51??nrf24l01_430g2231_v2\Debug\List\
?????目錄???????????0??2013-12-23?21:47??nrf24l01_430g2231_v2\Debug\Obj\
?????文件??????228288??2013-11-27?09:58??nrf24l01_430g2231_v2\Debug\Obj\dht11.pbi
?????文件????????9697??2013-11-27?09:58??nrf24l01_430g2231_v2\Debug\Obj\dht11.pbi.cout
?????文件???????12965??2013-11-27?09:59??nrf24l01_430g2231_v2\Debug\Obj\dht11.r43
?????文件?????????865??2012-02-20?17:32??nrf24l01_430g2231_v2\Debug\Obj\EW101.r43
?????文件?????????867??2012-02-20?17:18??nrf24l01_430g2231_v2\Debug\Obj\EW1110.r43
?????文件?????????898??2012-02-19?21:50??nrf24l01_430g2231_v2\Debug\Obj\EW114D.r43
?????文件?????????867??2012-02-21?17:20??nrf24l01_430g2231_v2\Debug\Obj\EW120D.r43
?????文件?????????867??2012-02-21?17:19??nrf24l01_430g2231_v2\Debug\Obj\EW183D.r43
?????文件?????????896??2012-02-20?16:08??nrf24l01_430g2231_v2\Debug\Obj\EW189.r43
?????文件?????????867??2012-02-20?16:22??nrf24l01_430g2231_v2\Debug\Obj\EW18D1.r43
?????文件?????????867??2012-02-21?17:23??nrf24l01_430g2231_v2\Debug\Obj\EW1E78.r43
?????文件?????????867??2012-02-20?18:01??nrf24l01_430g2231_v2\Debug\Obj\EW1F50.r43
?????文件?????????867??2012-02-20?16:18??nrf24l01_430g2231_v2\Debug\Obj\EW1F6A.r43
?????文件?????????867??2012-02-20?16:18??nrf24l01_430g2231_v2\Debug\Obj\EW2008.r43
?????文件?????????867??2012-02-20?18:02??nrf24l01_430g2231_v2\Debug\Obj\EW214C.r43
?????文件?????????867??2012-02-21?18:14??nrf24l01_430g2231_v2\Debug\Obj\EW2372.r43
?????文件?????????867??2012-02-20?17:47??nrf24l01_430g2231_v2\Debug\Obj\EW284B.r43
?????文件?????????867??2012-02-20?18:20??nrf24l01_430g2231_v2\Debug\Obj\EW28BD.r43
?????文件?????????867??2012-02-21?16:51??nrf24l01_430g2231_v2\Debug\Obj\EW2A5A.r43
?????文件?????????867??2012-02-21?17:22??nrf24l01_430g2231_v2\Debug\Obj\EW2B6A.r43
?????文件?????????867??2012-02-20?17:38??nrf24l01_430g2231_v2\Debug\Obj\EW2C06.r43
?????文件?????????867??2012-02-20?17:19??nrf24l01_430g2231_v2\Debug\Obj\EW3104.r43
?????文件?????????867??2012-02-20?16:58??nrf24l01_430g2231_v2\Debug\Obj\EW3459.r43
............此處省略114個文件信息