TEMP driver

Temperature sensor (TEMP) driver. More...

Data Structures
struct	nrfx_temp_config_t
	Structure for TEMP configuration. More...

Macros
#define	NRFX_TEMP_DEFAULT_CONFIG
	TEMP default configuration. More...

Typedefs
typedef void(*	nrfx_temp_data_handler_t )(int32_t raw_temperature)
	TEMP driver data ready handler type. More...

Functions
nrfx_err_t	nrfx_temp_init (nrfx_temp_config_t const *p_config, nrfx_temp_data_handler_t handler)
	Function for initializing the TEMP driver. More...
void	nrfx_temp_uninit (void)
	Function for uninitializing the TEMP driver.
__STATIC_INLINE int32_t	nrfx_temp_result_get (void)
	Function for getting the temperature measurement in a 2's complement signed value representation. More...
int32_t	nrfx_temp_calculate (int32_t raw_measurement)
	Function for calculating the temperature value in Celsius scale from raw data. More...
nrfx_err_t	nrfx_temp_measure (void)
	Function for starting the temperature measurement. More...

Detailed Description

Temperature sensor (TEMP) driver.

Macro Definition Documentation

#define NRFX_TEMP_DEFAULT_CONFIG

Value:

{ \
 .interrupt_priority = NRFX_TEMP_DEFAULT_CONFIG_IRQ_PRIORITY, \
 }

TEMP default configuration.

Typedef Documentation

typedef void(* nrfx_temp_data_handler_t)(int32_t raw_temperature)

TEMP driver data ready handler type.

Parameters

temperature

Raw temperature in a 2's complement signed value representation. This value can be converted to Celsius scale using the nrfx_temp_calculate() function.

Function Documentation

int32_t nrfx_temp_calculate

(

int32_t

raw_measurement

)

Function for calculating the temperature value in Celsius scale from raw data.

The returned temperature value is in Celsius scale, multiplied by 100 For example, the actual temperature of 25.75[C] will be returned as a 2575 signed integer. Measurement accuracy is 0.25[C].

Parameters

[in]

raw_measurement

Temperature value in a 2's complement signed value representation.

Returns

Temperature measurement result.

nrfx_err_t nrfx_temp_init	(	nrfx_temp_config_t const *	p_config,
		nrfx_temp_data_handler_t	handler
	)

Function for initializing the TEMP driver.

Parameters

[in]	p_config	Pointer to the structure with initial configuration.
[in]	handler	Data handler provided by the user. If not provided, the driver is initialized in blocking mode.

Return values

NRFX_SUCCESS	Driver was successfully initialized.
NRFX_ERROR_ALREADY_INITIALIZED	Driver was already initialized.

nrfx_err_t nrfx_temp_measure

(

void

)

Function for starting the temperature measurement.

Non-blocking mode: This function returns immediately. After a measurement, the handler specified during initialization is called, with measurement result as the parameter.

Blocking mode: This function waits until the measurement is finished. The value should be read using the nrfx_temp_result_get() function.

Return values

NRFX_SUCCESS	In non-blocking mode: Measurement was started. An interrupt will be generated soon. In blocking mode: Measurement was started and finished. Data can be read using the nrfx_temp_result_get() function.
NRFX_ERROR_INTERNAL	In non-blocking mode: Not applicable. In blocking mode: Measurement data ready event did not occur.

__STATIC_INLINE int32_t nrfx_temp_result_get

(

void

)

Function for getting the temperature measurement in a 2's complement signed value representation.

This function returns the last value prepared by the TEMP peripheral. In blocking mode, it should be used after calling the nrfx_temp_measure() function. In non-blocking mode, it is called internally by the driver, and the value it returns is passed to the data handler.

Returns

Temperature measurement result in a 2's complement signed value representation.