Hardware access layer for managing the Low Power Comparator (LPCOMP). More...

Data Structures
struct	nrf_lpcomp_config_t
	LPCOMP configuration. More...

Macros
#define	NRF_LPCOMP_CONFIG_DEFAULT { NRF_LPCOMP_REF_SUPPLY_FOUR_EIGHT, NRF_LPCOMP_DETECT_DOWN }

Enumerations
enum	nrf_lpcomp_ref_t { NRF_LPCOMP_REF_SUPPLY_1_8 = LPCOMP_REFSEL_REFSEL_SupplyOneEighthPrescaling, NRF_LPCOMP_REF_SUPPLY_2_8 = LPCOMP_REFSEL_REFSEL_SupplyTwoEighthsPrescaling, NRF_LPCOMP_REF_SUPPLY_3_8 = LPCOMP_REFSEL_REFSEL_SupplyThreeEighthsPrescaling, NRF_LPCOMP_REF_SUPPLY_4_8 = LPCOMP_REFSEL_REFSEL_SupplyFourEighthsPrescaling, NRF_LPCOMP_REF_SUPPLY_5_8 = LPCOMP_REFSEL_REFSEL_SupplyFiveEighthsPrescaling, NRF_LPCOMP_REF_SUPPLY_6_8 = LPCOMP_REFSEL_REFSEL_SupplySixEighthsPrescaling, NRF_LPCOMP_REF_SUPPLY_7_8 = LPCOMP_REFSEL_REFSEL_SupplySevenEighthsPrescaling, NRF_LPCOMP_REF_EXT_REF0 , NRF_LPCOMP_CONFIG_REF_EXT_REF1 }
	LPCOMP reference selection. More...
enum	nrf_lpcomp_input_t { NRF_LPCOMP_INPUT_0 = LPCOMP_PSEL_PSEL_AnalogInput0, NRF_LPCOMP_INPUT_1 = LPCOMP_PSEL_PSEL_AnalogInput1, NRF_LPCOMP_INPUT_2 = LPCOMP_PSEL_PSEL_AnalogInput2, NRF_LPCOMP_INPUT_3 = LPCOMP_PSEL_PSEL_AnalogInput3, NRF_LPCOMP_INPUT_4 = LPCOMP_PSEL_PSEL_AnalogInput4, NRF_LPCOMP_INPUT_5 = LPCOMP_PSEL_PSEL_AnalogInput5, NRF_LPCOMP_INPUT_6 = LPCOMP_PSEL_PSEL_AnalogInput6, NRF_LPCOMP_INPUT_7 = LPCOMP_PSEL_PSEL_AnalogInput7 }
	LPCOMP input selection. More...
enum	nrf_lpcomp_detect_t { NRF_LPCOMP_DETECT_CROSS = LPCOMP_ANADETECT_ANADETECT_Cross, NRF_LPCOMP_DETECT_UP = LPCOMP_ANADETECT_ANADETECT_Up, NRF_LPCOMP_DETECT_DOWN = LPCOMP_ANADETECT_ANADETECT_Down }
	LPCOMP detection type selection. More...
enum	nrf_lpcomp_task_t { NRF_LPCOMP_TASK_START = offsetof(NRF_LPCOMP_Type, TASKS_START), NRF_LPCOMP_TASK_STOP = offsetof(NRF_LPCOMP_Type, TASKS_STOP), NRF_LPCOMP_TASK_SAMPLE = offsetof(NRF_LPCOMP_Type, TASKS_SAMPLE) }
	LPCOMP tasks. More...
enum	nrf_lpcomp_event_t { NRF_LPCOMP_EVENT_READY = offsetof(NRF_LPCOMP_Type, EVENTS_READY), NRF_LPCOMP_EVENT_DOWN = offsetof(NRF_LPCOMP_Type, EVENTS_DOWN), NRF_LPCOMP_EVENT_UP = offsetof(NRF_LPCOMP_Type, EVENTS_UP), NRF_LPCOMP_EVENT_CROSS = offsetof(NRF_LPCOMP_Type, EVENTS_CROSS) }
	LPCOMP events. More...
enum	nrf_lpcomp_short_mask_t { NRF_LPCOMP_SHORT_CROSS_STOP_MASK = LPCOMP_SHORTS_CROSS_STOP_Msk, NRF_LPCOMP_SHORT_UP_STOP_MASK = LPCOMP_SHORTS_UP_STOP_Msk, NRF_LPCOMP_SHORT_DOWN_STOP_MASK = LPCOMP_SHORTS_DOWN_STOP_Msk, NRF_LPCOMP_SHORT_READY_STOP_MASK = LPCOMP_SHORTS_READY_STOP_Msk, NRF_LPCOMP_SHORT_READY_SAMPLE_MASK = LPCOMP_SHORTS_READY_SAMPLE_Msk }
	LPCOMP shorts masks. More...

Functions
__STATIC_INLINE void	nrf_lpcomp_configure (const nrf_lpcomp_config_t *p_config)
	Function for configuring LPCOMP. More...
__STATIC_INLINE void	nrf_lpcomp_input_select ( nrf_lpcomp_input_t input)
	Function for selecting the LPCOMP input. More...
__STATIC_INLINE void	nrf_lpcomp_enable (void)
	Function for enabling the Low Power Comparator. More...
__STATIC_INLINE void	nrf_lpcomp_disable (void)
	Function for disabling the Low Power Comparator. More...
__STATIC_INLINE uint32_t	nrf_lpcomp_result_get (void)
	Function for getting the last LPCOMP compare result. More...
__STATIC_INLINE void	nrf_lpcomp_int_enable (uint32_t lpcomp_int_mask)
	Function for enabling interrupts from LPCOMP. More...
__STATIC_INLINE void	nrf_lpcomp_int_disable (uint32_t lpcomp_int_mask)
	Function for disabling interrupts from LPCOMP. More...
__STATIC_INLINE bool	nrf_lpcomp_int_enable_check (uint32_t lpcomp_int_mask)
	Function for getting the enabled interrupts of LPCOMP. More...
__STATIC_INLINE uint32_t *	nrf_lpcomp_task_address_get ( nrf_lpcomp_task_t lpcomp_task)
	Function for getting the address of a specific LPCOMP task register. More...
__STATIC_INLINE uint32_t *	nrf_lpcomp_event_address_get ( nrf_lpcomp_event_t lpcomp_event)
	Function for getting the address of a specific LPCOMP event register. More...
__STATIC_INLINE void	nrf_lpcomp_shorts_enable (uint32_t lpcomp_short_mask)
	Function for setting LPCOMP shorts. More...
__STATIC_INLINE void	nrf_lpcomp_shorts_disable (uint32_t lpcomp_short_mask)
	Function for clearing LPCOMP shorts by mask. More...
__STATIC_INLINE void	nrf_lpcomp_task_trigger ( nrf_lpcomp_task_t lpcomp_task)
	Function for setting a specific LPCOMP task. More...
__STATIC_INLINE void	nrf_lpcomp_event_clear ( nrf_lpcomp_event_t lpcomp_event)
	Function for clearing a specific LPCOMP event. More...
__STATIC_INLINE bool	nrf_lpcomp_event_check ( nrf_lpcomp_event_t lpcomp_event)
	Function for getting the state of a specific LPCOMP event. More...

Detailed Description

Hardware access layer for managing the Low Power Comparator (LPCOMP).

Macro Definition Documentation

#define NRF_LPCOMP_CONFIG_DEFAULT   { NRF_LPCOMP_REF_SUPPLY_FOUR_EIGHT, NRF_LPCOMP_DETECT_DOWN }

Default LPCOMP configuration.

Enumeration Type Documentation

enum nrf_lpcomp_detect_t

LPCOMP detection type selection.

Enumerator
NRF_LPCOMP_DETECT_CROSS	Generate ANADETEC on crossing, both upwards and downwards crossing.
NRF_LPCOMP_DETECT_UP	Generate ANADETEC on upwards crossing only.
NRF_LPCOMP_DETECT_DOWN	Generate ANADETEC on downwards crossing only.

enum nrf_lpcomp_event_t

LPCOMP events.

Enumerator
NRF_LPCOMP_EVENT_READY	LPCOMP is ready and output is valid.
NRF_LPCOMP_EVENT_DOWN	Input voltage crossed the threshold going down.
NRF_LPCOMP_EVENT_UP	Input voltage crossed the threshold going up.
NRF_LPCOMP_EVENT_CROSS	Input voltage crossed the threshold in any direction.

enum nrf_lpcomp_input_t

LPCOMP input selection.

Enumerator
NRF_LPCOMP_INPUT_0	Input 0.
NRF_LPCOMP_INPUT_1	Input 1.
NRF_LPCOMP_INPUT_2	Input 2.
NRF_LPCOMP_INPUT_3	Input 3.
NRF_LPCOMP_INPUT_4	Input 4.
NRF_LPCOMP_INPUT_5	Input 5.
NRF_LPCOMP_INPUT_6	Input 6.
NRF_LPCOMP_INPUT_7	Input 7.

enum nrf_lpcomp_ref_t

LPCOMP reference selection.

Enumerator
NRF_LPCOMP_REF_SUPPLY_1_8	Use supply with a 1/8 prescaler as reference.
NRF_LPCOMP_REF_SUPPLY_2_8	Use supply with a 2/8 prescaler as reference.
NRF_LPCOMP_REF_SUPPLY_3_8	Use supply with a 3/8 prescaler as reference.
NRF_LPCOMP_REF_SUPPLY_4_8	Use supply with a 4/8 prescaler as reference.
NRF_LPCOMP_REF_SUPPLY_5_8	Use supply with a 5/8 prescaler as reference.
NRF_LPCOMP_REF_SUPPLY_6_8	Use supply with a 6/8 prescaler as reference.
NRF_LPCOMP_REF_SUPPLY_7_8	Use supply with a 7/8 prescaler as reference.
NRF_LPCOMP_REF_EXT_REF0	External reference 0.
NRF_LPCOMP_CONFIG_REF_EXT_REF1	External reference 1.

enum nrf_lpcomp_short_mask_t

LPCOMP shorts masks.

Enumerator
NRF_LPCOMP_SHORT_CROSS_STOP_MASK	Short between CROSS event and STOP task.
NRF_LPCOMP_SHORT_UP_STOP_MASK	Short between UP event and STOP task.
NRF_LPCOMP_SHORT_DOWN_STOP_MASK	Short between DOWN event and STOP task.
NRF_LPCOMP_SHORT_READY_STOP_MASK	Short between READY event and STOP task.
NRF_LPCOMP_SHORT_READY_SAMPLE_MASK	Short between READY event and SAMPLE task.

enum nrf_lpcomp_task_t

LPCOMP tasks.

Enumerator
NRF_LPCOMP_TASK_START	LPCOMP start sampling task.
NRF_LPCOMP_TASK_STOP	LPCOMP stop sampling task.
NRF_LPCOMP_TASK_SAMPLE	Sample comparator value.

Function Documentation

__STATIC_INLINE void nrf_lpcomp_configure

(

const nrf_lpcomp_config_t *

p_config

)

Function for configuring LPCOMP.

This function powers on LPCOMP and configures it. LPCOMP is in DISABLE state after configuration, so it must be enabled before using it. All shorts are inactive, events are cleared, and LPCOMP is stopped.

Parameters

[in]

p_config

Configuration.

__STATIC_INLINE void nrf_lpcomp_disable

(

void

)

Function for disabling the Low Power Comparator.

This function disables LPCOMP.

__STATIC_INLINE void nrf_lpcomp_enable

(

void

)

Function for enabling the Low Power Comparator.

This function enables LPCOMP.

__STATIC_INLINE uint32_t* nrf_lpcomp_event_address_get

(

nrf_lpcomp_event_t

lpcomp_event

)

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

Parameters

[in]

lpcomp_event

LPCOMP event.

Returns

The address of the specified LPCOMP event.

__STATIC_INLINE bool nrf_lpcomp_event_check

(

nrf_lpcomp_event_t

lpcomp_event

)

Function for getting the state of a specific LPCOMP event.

Return values

true	If the specified LPCOMP event is active.

__STATIC_INLINE void nrf_lpcomp_event_clear

(

nrf_lpcomp_event_t

lpcomp_event

)

Function for clearing a specific LPCOMP event.

Parameters

[in]

lpcomp_event

LPCOMP event to be cleared.

__STATIC_INLINE void nrf_lpcomp_input_select

(

nrf_lpcomp_input_t

input

)

Function for selecting the LPCOMP input.

This function selects the active input of LPCOMP.

Parameters

[in]

input

Input to be selected.

__STATIC_INLINE void nrf_lpcomp_int_disable

(

uint32_t

lpcomp_int_mask

)

Function for disabling interrupts from LPCOMP.

Parameters

[in]

lpcomp_int_mask

Mask of interrupts to be disabled.

See Also

nrf_lpcomp_int_enable()

nrf_lpcomp_int_enable_check()

__STATIC_INLINE void nrf_lpcomp_int_enable

(

uint32_t

lpcomp_int_mask

)

Function for enabling interrupts from LPCOMP.

Parameters

[in]

lpcomp_int_mask

Mask of interrupts to be enabled.

See Also

nrf_lpcomp_int_disable()

nrf_lpcomp_int_enable_check()

__STATIC_INLINE bool nrf_lpcomp_int_enable_check

(

uint32_t

lpcomp_int_mask

)

Function for getting the enabled interrupts of LPCOMP.

Parameters

[in]

lpcomp_int_mask

Mask of interrupts to be checked.

Return values

true	If any of interrupts of the specified mask are enabled.

See Also

nrf_lpcomp_int_enable()

nrf_lpcomp_int_disable()

__STATIC_INLINE uint32_t nrf_lpcomp_result_get

(

void

)

Function for getting the last LPCOMP compare result.

Returns

The last compare result. If 0 then VIN+ < VIN-, if 1 then the opposite.

__STATIC_INLINE void nrf_lpcomp_shorts_disable

(

uint32_t

lpcomp_short_mask

)

Function for clearing LPCOMP shorts by mask.

Parameters

[in]

lpcomp_short_mask

LPCOMP shorts to be cleared.

__STATIC_INLINE void nrf_lpcomp_shorts_enable

(

uint32_t

lpcomp_short_mask

)

Function for setting LPCOMP shorts.

Parameters

[in]

lpcomp_short_mask

LPCOMP shorts by mask.

__STATIC_INLINE uint32_t* nrf_lpcomp_task_address_get

(

nrf_lpcomp_task_t

lpcomp_task

)

Function for getting the address of a specific LPCOMP task register.

Parameters

[in]

lpcomp_task

LPCOMP task.

Returns

The address of the specified LPCOMP task.

__STATIC_INLINE void nrf_lpcomp_task_trigger

(

nrf_lpcomp_task_t

lpcomp_task

)

Function for setting a specific LPCOMP task.

Parameters

[in]

lpcomp_task

LPCOMP task to be set.