Read in normal mode

read last measured data from sensor in normal mode More...

Collaboration diagram for Read in normal mode:

Functions
int8_t	BME280_ReadAllLast (BME280_t *Dev, BME280_Data_t *Data)
	Function reads all measured data at once.
int8_t	BME280_ReadTempLast (BME280_t *Dev, int8_t *TempInt, uint8_t *TempFract)
	Function reads last measured temperature.
int8_t	BME280_ReadPressLast (BME280_t *Dev, uint16_t *PressInt, uint16_t *PressFract)
	Function reads last measured pressure.
int8_t	BME280_ReadHumLast (BME280_t *Dev, uint8_t *HumInt, uint16_t *HumFract)
	Function reads last measured humidity.

Detailed Description

read last measured data from sensor in normal mode

Note

USE_NORMAL_MODE in Library Configuration must be uncommented to use these functions

Function Documentation

BME280_ReadAllLast()

int8_t BME280_ReadAllLast	(	BME280_t *	Dev,
		BME280_Data_t *	Data
	)

Function reads all measured data at once.

Note

Sensor must be in BME280_NORMALMODE to read last measured values.

Function reads all adc values from sensor, converts them into single variables and compensate with use BME280_calibration_data. Compensated values are then converted into BME280_Data_t structure.

Parameters

[in]	*Dev	pointer to sensor's BME280_t structure
[out]	*Data	pointer to structure where result will be stored

Returns

BME280_OK success

BME280_PARAM_ERR wrong parameter passed

BME280_INTERFACE_ERR user defined read/write function returned non-zero value

BME280_NO_INIT_ERR sensor was not initialized before

BME280_CONDITION_ERR sensor is not in BME280_NORMALMODE

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BME280_ReadHumLast()

int8_t BME280_ReadHumLast	(	BME280_t *	Dev,
		uint8_t *	HumInt,
		uint16_t *	HumFract
	)

Function reads last measured humidity.

Note

Sensor must be in BME280_NORMALMODE to read last measured values.

Function reads temperature and humidity related adc values from sensor, converts them into single variables and compensate with use BME280_calibration_data. Compensated value is then converted into integer part and fractial part and stored in external variables

Parameters

[in]	*Dev	pointer to sensor's BME280_t structure
[out]	*HumInt	pointer to variable where integer part of humidity will be stored
[out]	*HumFract	pointer to variable where fractial part of humidity will be stored

Returns

BME280_OK success

BME280_PARAM_ERR wrong parameter passed

BME280_INTERFACE_ERR user defined read/write function returned non-zero value

BME280_NO_INIT_ERR sensor was not initialized before

BME280_CONDITION_ERR sensor is not in BME280_NORMALMODE

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BME280_ReadPressLast()

int8_t BME280_ReadPressLast	(	BME280_t *	Dev,
		uint16_t *	PressInt,
		uint16_t *	PressFract
	)

Function reads last measured pressure.

Note

Sensor must be in BME280_NORMALMODE to read last measured values.

Function reads temperature and pressure related adc values from sensor, converts them into single variables and compensate with use BME280_calibration_data. Compensated value is then converted into integer part and fractial part and stored in external variables

Parameters

[in]	*Dev	pointer to sensor's BME280_t structure
[out]	*PressInt	pointer to variable where integer part of pressure will be stored
[out]	*PressFract	pointer to variable where fractial part of pressure will be stored

Returns

BME280_OK success

BME280_PARAM_ERR wrong parameter passed

BME280_INTERFACE_ERR user defined read/write function returned non-zero value

BME280_NO_INIT_ERR sensor was not initialized before

BME280_CONDITION_ERR sensor is not in BME280_NORMALMODE

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BME280_ReadTempLast()

int8_t BME280_ReadTempLast	(	BME280_t *	Dev,
		int8_t *	TempInt,
		uint8_t *	TempFract
	)

Function reads last measured temperature.

Note

Sensor must be in BME280_NORMALMODE to read last measured values.

Function reads temperature related adc values from sensor, converts them into single variable and compensate with use BME280_calibration_data. Compensated value is then converted into integer part and fractial part and stored in external variables

Parameters

[in]	*Dev	pointer to sensor's BME280_t structure
[out]	*TempInt	pointer to variable where integer part of temperature will be stored
[out]	*TempFract	pointer to variable where fractial part of temperature will be stored

Returns

BME280_OK success

BME280_PARAM_ERR wrong parameter passed

BME280_INTERFACE_ERR user defined read/write function returned non-zero value

BME280_NO_INIT_ERR sensor was not initialized before

BME280_CONDITION_ERR sensor is not in BME280_NORMALMODE

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