Hardware abstraction layer for managing the analog-to-digital converter. More...

Data Structures
struct	nrf_adc_config_t
	Analog-to-digital converter configuration. More...

Macros
#define	NRF_ADC_CONFIG_DEFAULT

Enumerations
enum	nrf_adc_config_resolution_t { NRF_ADC_CONFIG_RES_8BIT = ADC_CONFIG_RES_8bit, NRF_ADC_CONFIG_RES_9BIT = ADC_CONFIG_RES_9bit, NRF_ADC_CONFIG_RES_10BIT = ADC_CONFIG_RES_10bit }
	Resolution of the analog-to-digital converter. More...

enum	nrf_adc_config_scaling_t { NRF_ADC_CONFIG_SCALING_INPUT_FULL_SCALE = ADC_CONFIG_INPSEL_AnalogInputNoPrescaling, NRF_ADC_CONFIG_SCALING_INPUT_TWO_THIRDS = ADC_CONFIG_INPSEL_AnalogInputTwoThirdsPrescaling, NRF_ADC_CONFIG_SCALING_INPUT_ONE_THIRD = ADC_CONFIG_INPSEL_AnalogInputOneThirdPrescaling, NRF_ADC_CONFIG_SCALING_SUPPLY_TWO_THIRDS = ADC_CONFIG_INPSEL_SupplyTwoThirdsPrescaling, NRF_ADC_CONFIG_SCALING_SUPPLY_ONE_THIRD = ADC_CONFIG_INPSEL_SupplyOneThirdPrescaling }
	Scaling factor of the analog-to-digital conversion. More...

enum	nrf_adc_config_reference_t { NRF_ADC_CONFIG_REF_VBG = ADC_CONFIG_REFSEL_VBG, NRF_ADC_CONFIG_REF_SUPPLY_ONE_HALF = ADC_CONFIG_REFSEL_SupplyOneHalfPrescaling, NRF_ADC_CONFIG_REF_SUPPLY_ONE_THIRD = ADC_CONFIG_REFSEL_SupplyOneThirdPrescaling, NRF_ADC_CONFIG_REF_EXT_REF0, NRF_ADC_CONFIG_REF_EXT_REF1 }
	Reference selection of the analog-to-digital converter. More...

enum	nrf_adc_config_input_t { NRF_ADC_CONFIG_INPUT_DISABLED = ADC_CONFIG_PSEL_Disabled, NRF_ADC_CONFIG_INPUT_0 = ADC_CONFIG_PSEL_AnalogInput0, NRF_ADC_CONFIG_INPUT_1 = ADC_CONFIG_PSEL_AnalogInput1, NRF_ADC_CONFIG_INPUT_2 = ADC_CONFIG_PSEL_AnalogInput2, NRF_ADC_CONFIG_INPUT_3 = ADC_CONFIG_PSEL_AnalogInput3, NRF_ADC_CONFIG_INPUT_4 = ADC_CONFIG_PSEL_AnalogInput4, NRF_ADC_CONFIG_INPUT_5 = ADC_CONFIG_PSEL_AnalogInput5, NRF_ADC_CONFIG_INPUT_6 = ADC_CONFIG_PSEL_AnalogInput6, NRF_ADC_CONFIG_INPUT_7 = ADC_CONFIG_PSEL_AnalogInput7 }
	Input selection of the analog-to-digital converter. More...

enum	nrf_adc_task_t { NRF_ADC_TASK_START = offsetof(NRF_ADC_Type, TASKS_START), NRF_ADC_TASK_STOP = offsetof(NRF_ADC_Type, TASKS_STOP) }
	Analog-to-digital converter tasks. More...

enum	nrf_adc_event_t { NRF_ADC_EVENT_END = offsetof(NRF_ADC_Type, EVENTS_END) }
	Analog-to-digital converter events. More...

Functions
void	nrf_adc_configure (nrf_adc_config_t *config)
	Function for configuring ADC. More...

int32_t	nrf_adc_convert_single (nrf_adc_config_input_t input)
	Blocking function for executing a single ADC conversion. More...

__STATIC_INLINE void	nrf_adc_input_select (nrf_adc_config_input_t input)
	Function for selecting ADC input. More...

__STATIC_INLINE int32_t	nrf_adc_result_get (void)
	Function for retrieving the ADC conversion result. More...

__STATIC_INLINE bool	nrf_adc_is_busy (void)
	Function for checking whether the ADC is busy. More...

__STATIC_INLINE void	nrf_adc_int_enable (uint32_t interrupts)
	Function for enabling interrupts from the ADC. More...

__STATIC_INLINE void	nrf_adc_int_disable (uint32_t interrupts)
	Function for disabling interrupts from the ADC. More...

__STATIC_INLINE uint32_t	nrf_adc_int_get (uint32_t mask)
	Function for getting the ADC's enabled interrupts. More...

__STATIC_INLINE void	nrf_adc_start (void)
	Function for starting conversion. More...

__STATIC_INLINE void	nrf_adc_stop (void)
	Function for stopping conversion. More...

__STATIC_INLINE bool	nrf_adc_conversion_finished (void)
	Function for checking if the requested ADC conversion has ended. More...

__STATIC_INLINE void	nrf_adc_conversion_event_clean (void)
	Function for cleaning conversion end event.

__STATIC_INLINE uint32_t *	nrf_adc_task_address_get (nrf_adc_task_t adc_task)
	Function for getting the address of an ADC task register. More...

__STATIC_INLINE uint32_t *	nrf_adc_event_address_get (nrf_adc_event_t adc_event)
	Function for getting the address of a specific ADC event register. More...

Detailed Description

Hardware abstraction layer for managing the analog-to-digital converter.

Macro Definition Documentation

#define NRF_ADC_CONFIG_DEFAULT

Value:

{ NRF_ADC_CONFIG_RES_10BIT,               \
                                 NRF_ADC_CONFIG_SCALING_INPUT_ONE_THIRD, \
                                 NRF_ADC_CONFIG_REF_VBG }

Default ADC configuration.

Enumeration Type Documentation

enum nrf_adc_config_input_t

Input selection of the analog-to-digital converter.

Enumerator
NRF_ADC_CONFIG_INPUT_DISABLED	No input selected.
NRF_ADC_CONFIG_INPUT_0	Input 0.
NRF_ADC_CONFIG_INPUT_1	Input 1.
NRF_ADC_CONFIG_INPUT_2	Input 2.
NRF_ADC_CONFIG_INPUT_3	Input 3.
NRF_ADC_CONFIG_INPUT_4	Input 4.
NRF_ADC_CONFIG_INPUT_5	Input 5.
NRF_ADC_CONFIG_INPUT_6	Input 6.
NRF_ADC_CONFIG_INPUT_7	Input 7.

enum nrf_adc_config_reference_t

Reference selection of the analog-to-digital converter.

Enumerator
NRF_ADC_CONFIG_REF_VBG	1.2 V reference.
NRF_ADC_CONFIG_REF_SUPPLY_ONE_HALF	1/2 of power supply.
NRF_ADC_CONFIG_REF_SUPPLY_ONE_THIRD	1/3 of power supply.
NRF_ADC_CONFIG_REF_EXT_REF0	External reference 0.
NRF_ADC_CONFIG_REF_EXT_REF1	External reference 0.

enum nrf_adc_config_resolution_t

Resolution of the analog-to-digital converter.

Enumerator
NRF_ADC_CONFIG_RES_8BIT	8 bit resolution.
NRF_ADC_CONFIG_RES_9BIT	9 bit resolution.
NRF_ADC_CONFIG_RES_10BIT	10 bit resolution.

enum nrf_adc_config_scaling_t

Scaling factor of the analog-to-digital conversion.

Enumerator
NRF_ADC_CONFIG_SCALING_INPUT_FULL_SCALE	Full scale input.
NRF_ADC_CONFIG_SCALING_INPUT_TWO_THIRDS	2/3 scale input.
NRF_ADC_CONFIG_SCALING_INPUT_ONE_THIRD	1/3 scale input.
NRF_ADC_CONFIG_SCALING_SUPPLY_TWO_THIRDS	2/3 of supply.
NRF_ADC_CONFIG_SCALING_SUPPLY_ONE_THIRD	1/3 of supply.

enum nrf_adc_event_t

Analog-to-digital converter events.

Enumerator
NRF_ADC_EVENT_END	End of conversion event.

enum nrf_adc_task_t

Analog-to-digital converter tasks.

Enumerator
NRF_ADC_TASK_START	ADC start sampling task.
NRF_ADC_TASK_STOP	ADC stop sampling task.

Function Documentation

void nrf_adc_configure ( nrf_adc_config_t * config )

Function for configuring ADC.

This function powers on the analog-to-digital converter and configures it. After the configuration, the ADC is in DISABLE state and must be enabled before using it.

Parameters

[in] config Configuration parameters.

__STATIC_INLINE bool nrf_adc_conversion_finished ( void )

Function for checking if the requested ADC conversion has ended.

Return values

true	If the task has finished.
false	If the task is still running.

int32_t nrf_adc_convert_single ( nrf_adc_config_input_t input )

Blocking function for executing a single ADC conversion.

This function selects the desired input, starts a single conversion, waits for it to finish, and returns the result. After the input is selected, the analog-to-digital converter is left in STOP state. The function does not check if the ADC is initialized and powered.

Parameters

[in] input Input to be selected.

Returns: Conversion result.

__STATIC_INLINE uint32_t* nrf_adc_event_address_get ( nrf_adc_event_t adc_event )

Function for getting the address of a specific ADC event register.

Parameters

[in] adc_event ADC event.

Returns: Address of the specified ADC event.

__STATIC_INLINE void nrf_adc_input_select ( nrf_adc_config_input_t input )

Function for selecting ADC input.

This function selects the active input of ADC. Ensure that the ADC is powered on and in IDLE state before calling this function.

Parameters

[in] input Input to be selected.

__STATIC_INLINE void nrf_adc_int_disable ( uint32_t interrupts )

Function for disabling interrupts from the ADC.

Parameters

[in] interrupts Mask of interrupts to be disabled.

See Also: nrf_adc_int_enable(); nrf_adc_int_get()

__STATIC_INLINE void nrf_adc_int_enable ( uint32_t interrupts )

Function for enabling interrupts from the ADC.

Parameters

[in] interrupts Mask of interrupts to be enabled.

See Also: nrf_adc_int_disable(); nrf_adc_int_get()

__STATIC_INLINE uint32_t nrf_adc_int_get ( uint32_t mask )

Function for getting the ADC's enabled interrupts.

Parameters

[in] mask Mask of interrupts to check.

Returns: State of the interrupts selected by the mask.

See Also: nrf_adc_int_enable(); nrf_adc_int_disable()

__STATIC_INLINE bool nrf_adc_is_busy ( void )

Function for checking whether the ADC is busy.

This function checks whether the analog-to-digital converter is busy with a conversion.

Return values

true	If the ADC is busy.
false	If the ADC is not busy.

__STATIC_INLINE int32_t nrf_adc_result_get ( void )

Function for retrieving the ADC conversion result.

This function retrieves and returns the last analog-to-digital conversion result.

Returns: Last conversion result.

__STATIC_INLINE void nrf_adc_start ( void )

Function for starting conversion.

See Also: nrf_adc_stop()

__STATIC_INLINE void nrf_adc_stop ( void )

Function for stopping conversion.

If the analog-to-digital converter is in inactive state, power consumption is reduced.

See Also: nrf_adc_start()

__STATIC_INLINE uint32_t* nrf_adc_task_address_get ( nrf_adc_task_t adc_task )

Function for getting the address of an ADC task register.

Parameters

[in] adc_task ADC task.

Returns: Address of the specified ADC task.

Data Structures

Macros

Enumerations

Functions

Detailed Description

Macro Definition Documentation

Enumeration Type Documentation

Function Documentation