/********************************************************************************************/
/*?MEAS?France?Toulouse													*/
/********************************************************************************************/
/*?Controller:?dsPIC33FJ128GP802?	*/
/*?Compiler:?MPLAB?C30	*/
/*?Brief:?This?source?code?is?an?example?of?basic?commands?for?HTU21?communication.?	*/
/*		eDRV_HTU21_MeasureHumidity	*/
/*		eDRV_HTU21_MeasureTemperature	*/
/*		eDRV_HTU21_Reset	*/
/*		eDRV_HTU21_GetSerialNumber	*/
/*	*/
/********************************************************************************************/

/********************************************************************************************/
/*?Name?:?drv_htu21.c																		*/
/*?Date?:?Sep?26?2011																		*/
/*?Author?:?William?Markezana																*/
/********************************************************************************************/

/********************************************************************************************/
/*?INCLUDES																					*/
/********************************************************************************************/
//#include??
#include?“htu21d.h“
#include?“iic.c“
#define?U8?unsigned?char
#define?u16?unsigned?short?int
#define?u32?unsigned?int?
/********************************************************************************************/
/*?PRIVATE?PROTOTYPES																		*/
/********************************************************************************************/
e_Error?eCheckCrc（U8?data[]?U8?nbrOfBytes?U8?checksum）;
e_Error?eReadUserRegister（U8?*pRegisterValue）;
e_Error?eWriteUserRegister（U8?*pRegisterValue）;
e_Error?eMeasureHM（etHTU21MeasureType?eSHT2xMeasureType?u16?*pMeasurand）;
e_Error?eMeasurePOLL（etHTU21MeasureType?eSHT2xMeasureType?u16?*pMeasurand）;
float?floatCalcRH（u16?u16sRH）;
float?floatCalcTemperatureC（u16?u16sT）;
unsigned?char?th_res=0;//HTU21_RES_11_11BIT|HTU21_HEATER_OFF
/********************************************************************************************/
/*?PRIVATE?FUNCTIONS																		*/
/********************************************************************************************/
void?htu21dInit（）{
?TWI_Initialize（）;??
?eDRV_HTU21_Reset（）;
?//
	
//	eReadUserRegister（&th_res）;
//	th_res=0x02;
//	eWriteUserRegister（&th_res）;	
//	eReadUserRegister（&th_res）;
//	th_res;
	eReadUserRegister（&th_res）;
}
	
/*------------------------------------------------------------------------------------------*/
e_Error?eCheckCrc（U8?data[]?U8?nbrOfBytes?U8?checksum）
/*------------------------------------------------------------------------------------------*/
{
	U8?crc?=?0;
	U8?_bit;
	U8?byteCtr;

	for?（byteCtr?=?0;?byteCtr?	{?
		crc?^=?（data[nbrOfBytes-1-byteCtr]）;
		for?（_bit?=?8;?_bit?>?0;?--_bit）
		{?
			if?（crc?&?0x80）?
			{
				crc?=?（crc?<			}
		????else
		????{
	

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----

?????文件?????950847??2016-03-29?15:55??stm8-32-sht-20-30\Sensirion_Humidity_SHT3x_DIS_Datasheet.pdf

?????文件??????10013??2016-03-29?17:48??stm8-32-sht-20-30\SHT3x_Sample_Code_V1_D2-原廠例程.7z

?????文件??????11479??2015-09-10?15:24??stm8-32-sht-20-30\stm32\sht20\htu21d.c

?????文件???????3547??2015-09-10?15:24??stm8-32-sht-20-30\stm32\sht20\htu21d.h

?????文件???????7691??2015-09-11?13:50??stm8-32-sht-20-30\stm32\sht20\iic.c

?????文件????????125??2015-09-10?16:00??stm8-32-sht-20-30\stm32\sht20\iic.h

?????文件???????4399??2016-03-29?20:15??stm8-32-sht-20-30\stm32\sht20\main.c

?????文件???????6111??2014-06-17?15:50??stm8-32-sht-20-30\stm32\sht30\i2c_hal.c

?????文件???????3509??2014-06-17?15:51??stm8-32-sht-20-30\stm32\sht30\i2c_hal.h

?????文件???????6310??2016-03-30?09:49??stm8-32-sht-20-30\stm32\sht30\main.c

?????文件??????20877??2014-06-17?15:49??stm8-32-sht-20-30\stm32\sht30\sht3x.c

?????文件??????21703??2014-11-17?16:39??stm8-32-sht-20-30\stm32\sht30\sht3x.h

?????文件???????1183??2016-03-30?09:06??stm8-32-sht-20-30\stm32\sht30\system.c

?????文件???????1998??2016-03-29?18:01??stm8-32-sht-20-30\stm32\sht30\system.h

?????文件???????3156??2014-06-17?16:50??stm8-32-sht-20-30\stm32\sht30\typedefs.h

?????文件???????1301??2015-12-02?09:40??stm8-32-sht-20-30\stm8\sht20\gpio.c

?????文件????????309??2015-12-02?09:40??stm8-32-sht-20-30\stm8\sht20\gpio.h

?????文件??????10572??2015-12-02?09:40??stm8-32-sht-20-30\stm8\sht20\htu21d.c

?????文件???????3597??2016-03-29?16:25??stm8-32-sht-20-30\stm8\sht20\htu21d.h

?????文件???????4840??2015-12-02?09:40??stm8-32-sht-20-30\stm8\sht20\iic.c

?????文件????????302??2015-12-02?09:40??stm8-32-sht-20-30\stm8\sht20\iic.h

?????文件???????5322??2016-03-29?15:29??stm8-32-sht-20-30\stm8\sht20\main.c

?????文件????????327??2016-02-03?11:15??stm8-32-sht-20-30\stm8\sht20\main.h

?????文件???????1301??2015-12-02?09:40??stm8-32-sht-20-30\stm8\sht30\gpio.c

?????文件????????309??2015-12-02?09:40??stm8-32-sht-20-30\stm8\sht30\gpio.h

?????文件???????4840??2015-12-02?09:40??stm8-32-sht-20-30\stm8\sht30\iic.c

?????文件????????355??2016-03-29?17:02??stm8-32-sht-20-30\stm8\sht30\iic.h

?????文件???????5450??2016-03-31?09:05??stm8-32-sht-20-30\stm8\sht30\main.c

?????文件????????327??2016-02-03?11:15??stm8-32-sht-20-30\stm8\sht30\main.h

?????文件??????20812??2016-03-30?10:58??stm8-32-sht-20-30\stm8\sht30\sht3x.c

............此處省略14個文件信息