Multi-instance timer driver. More...

Data Structures
struct	nrf_drv_timer_t
	Struct for TIMER instance. More...

struct	nrf_drv_timer_config_t
	Struct for TIMER instance configuration. More...

Macros
#define	NRF_DRV_TIMER_INSTANCE(id)

#define	TIMER_CONFIG_FREQUENCY(id) TIMER##id##_CONFIG_FREQUENCY

#define	TIMER_CONFIG_MODE(id) TIMER##id##_CONFIG_MODE

#define	TIMER_CONFIG_BIT_WIDTH(id) TIMER##id##_CONFIG_BIT_WIDTH

#define	TIMER_CONFIG_IRQ_PRIORITY(id) TIMER##id##_CONFIG_IRQ_PRIORITY

#define	NRF_DRV_TIMER_DEFAULT_CONFIG(id)
	TIMER instance default configuration. More...

Typedefs
typedef void(*	nrf_timer_event_handler_t )(nrf_timer_event_t event_type, void *p_context)
	TIMER interrupt event handler. More...

Functions
ret_code_t	nrf_drv_timer_init (nrf_drv_timer_t const const p_instance, nrf_drv_timer_config_t const p_config, nrf_timer_event_handler_t timer_event_handler)
	Function for initializing the timer. More...

void	nrf_drv_timer_uninit (nrf_drv_timer_t const *const p_instance)
	Function for uninitializing the timer. More...

void	nrf_drv_timer_enable (nrf_drv_timer_t const *const p_instance)
	Function for turning on timer. More...

void	nrf_drv_timer_disable (nrf_drv_timer_t const *const p_instance)
	Function for turning off the timer. More...

void	nrf_drv_timer_pause (nrf_drv_timer_t const *const p_instance)
	Function for pausing the timer. More...

void	nrf_drv_timer_resume (nrf_drv_timer_t const *const p_instance)
	Function for resuming the timer. More...

void	nrf_drv_timer_clear (nrf_drv_timer_t const *const p_instance)
	Function for clearing the timer. More...

void	nrf_drv_timer_increment (nrf_drv_timer_t const *const p_instance)
	Function for incrementing the timer. More...

uint32_t	nrf_drv_timer_task_address_get (nrf_drv_timer_t const *const p_instance, nrf_timer_task_t timer_task)
	Function for returning the address of a specific timer task. More...

uint32_t	nrf_drv_timer_capture_task_address_get (nrf_drv_timer_t const *const p_instance, uint32_t channel)
	Function for returning the address of a specific timer capture task. More...

uint32_t	nrf_drv_timer_event_address_get (nrf_drv_timer_t const *const p_instance, nrf_timer_event_t timer_event)
	Function for returning the address of a specific timer event. More...

uint32_t	nrf_drv_timer_compare_event_address_get (nrf_drv_timer_t const *const p_instance, uint32_t channel)
	Function for returning the address of a specific timer compare event. More...

uint32_t	nrf_drv_timer_capture (nrf_drv_timer_t const *const p_instance, nrf_timer_cc_channel_t cc_channel)
	Function for capturing the timer value. More...

uint32_t	nrf_drv_timer_capture_get (nrf_drv_timer_t const *const p_instance, nrf_timer_cc_channel_t cc_channel)
	Function for returning the capture value from a specific channel. More...

void	nrf_drv_timer_compare (nrf_drv_timer_t const *const p_instance, nrf_timer_cc_channel_t cc_channel, uint32_t cc_value, bool enable)
	Function for setting the timer channel in compare mode. More...

void	nrf_drv_timer_extended_compare (nrf_drv_timer_t const *const p_instance, nrf_timer_cc_channel_t cc_channel, uint32_t cc_value, nrf_timer_short_mask_t timer_short_mask, bool enable)
	Function for setting the timer channel in extended compare mode. More...

uint32_t	nrf_drv_timer_us_to_ticks (nrf_drv_timer_t const *const p_instance, uint32_t timer_us)
	Function for converting microseconds to ticks. More...

uint32_t	nrf_drv_timer_ms_to_ticks (nrf_drv_timer_t const *const p_instance, uint32_t timer_ms)
	Function for converting milliseconds to ticks. More...

void	nrf_drv_timer_compare_int_enable (nrf_drv_timer_t const *const p_instance, uint32_t channel)
	Function for enabling timer compare interrupt. More...

void	nrf_drv_timer_compare_int_disable (nrf_drv_timer_t const *const p_instance, uint32_t channel)
	Function for disabling timer compare interrupt. More...

Detailed Description

Multi-instance timer driver.

Macro Definition Documentation

#define NRF_DRV_TIMER_DEFAULT_CONFIG ( id )

Value:

{                                                                                 \
        .frequency          = TIMER_CONFIG_FREQUENCY(id),                             \
        .mode               = (nrf_timer_mode_t)TIMER_CONFIG_MODE(id),                \
        .bit_width          = (nrf_timer_bit_width_t)TIMER_CONFIG_BIT_WIDTH(id),      \
        .interrupt_priority = TIMER_CONFIG_IRQ_PRIORITY(id),                          \
        .p_context          = NULL                                                    \
    }

TIMER instance default configuration.

#define NRF_DRV_TIMER_INSTANCE ( id )

Value:

{                                                          \
        .p_reg              = NRF_TIMER##id,                   \
        .irq                = TIMER##id##_IRQn,                \
        .instance_id        = TIMER##id##_INSTANCE_INDEX,      \
    }

Typedef Documentation

typedef void(* nrf_timer_event_handler_t)(nrf_timer_event_t event_type, void *p_context)

TIMER interrupt event handler.

Parameters

[in]	event_type	Timer event.
[in]	p_context	General purpose parameter set during initialization of the timer. Can be used to pass additional information to handler function, e.g. timer ID.

Function Documentation

uint32_t nrf_drv_timer_capture	(	nrf_drv_timer_t const *const	p_instance,
		nrf_timer_cc_channel_t	cc_channel
	)

Function for capturing the timer value.

Parameters

[in]	p_instance	Timer.
[in]	cc_channel	Channel.

Return values

Captured value.

uint32_t nrf_drv_timer_capture_get	(	nrf_drv_timer_t const *const	p_instance,
		nrf_timer_cc_channel_t	cc_channel
	)

Function for returning the capture value from a specific channel.

Note: Function for reading channel value when PPI is used for capturing.

Parameters

[in]	p_instance	Timer.
[in]	cc_channel	Channel.

Return values

Captured value.

uint32_t nrf_drv_timer_capture_task_address_get	(	nrf_drv_timer_t const *const	p_instance,
		uint32_t	channel
	)

Function for returning the address of a specific timer capture task.

Parameters

[in]	p_instance	Timer.
[in]	channel	Capture channel number.

Return values

Task address.

void nrf_drv_timer_clear ( nrf_drv_timer_t const *const p_instance )

Function for clearing the timer.

Parameters

[in] p_instance Timer.

void nrf_drv_timer_compare	(	nrf_drv_timer_t const *const	p_instance,
		nrf_timer_cc_channel_t	cc_channel,
		uint32_t	cc_value,
		bool	enable
	)

Function for setting the timer channel in compare mode.

Parameters

[in]	p_instance	Timer.
[in]	cc_channel	Channel.
[in]	cc_value	Compare value.
[in]	enable	Enable or disable the interrupt for the compare channel.

uint32_t nrf_drv_timer_compare_event_address_get	(	nrf_drv_timer_t const *const	p_instance,
		uint32_t	channel
	)

Function for returning the address of a specific timer compare event.

Parameters

[in]	p_instance	Timer.
[in]	channel	Compare channel number.

Return values

Event address.

void nrf_drv_timer_compare_int_disable	(	nrf_drv_timer_t const *const	p_instance,
		uint32_t	channel
	)

Function for disabling timer compare interrupt.

Parameters

[in]	p_instance	Timer.
[in]	channel	Compare channel

void nrf_drv_timer_compare_int_enable	(	nrf_drv_timer_t const *const	p_instance,
		uint32_t	channel
	)

Function for enabling timer compare interrupt.

Parameters

[in]	p_instance	Timer.
[in]	channel	Compare channel

void nrf_drv_timer_disable ( nrf_drv_timer_t const *const p_instance )

Function for turning off the timer.

Note: Timer will allow to enter lowest possible SYSTEM_ON state only after this function is called.

Parameters

[in] p_instance Timer.

void nrf_drv_timer_enable ( nrf_drv_timer_t const *const p_instance )

Function for turning on timer.

Parameters

[in] p_instance Timer

uint32_t nrf_drv_timer_event_address_get	(	nrf_drv_timer_t const *const	p_instance,
		nrf_timer_event_t	timer_event
	)

Function for returning the address of a specific timer event.

Parameters

[in]	p_instance	Timer.
[in]	timer_event	Timer event.

Return values

Event address.

void nrf_drv_timer_extended_compare	(	nrf_drv_timer_t const *const	p_instance,
		nrf_timer_cc_channel_t	cc_channel,
		uint32_t	cc_value,
		nrf_timer_short_mask_t	timer_short_mask,
		bool	enable
	)

Function for setting the timer channel in extended compare mode.

Parameters

[in]	p_instance	Timer.
[in]	cc_channel	Channel.
[in]	cc_value	Compare value.
[in]	timer_short_mask	Shortcut between the compare event on the channel and the timer task (STOP or CLEAR).
[in]	enable	Enable or disable the interrupt for the compare channel.

void nrf_drv_timer_increment ( nrf_drv_timer_t const *const p_instance )

Function for incrementing the timer.

Parameters

[in] p_instance Timer.

ret_code_t nrf_drv_timer_init	(	nrf_drv_timer_t const *const	p_instance,
		nrf_drv_timer_config_t const *	p_config,
		nrf_timer_event_handler_t	timer_event_handler
	)

Function for initializing the timer.

Parameters

[in]	p_instance	Timer.
[in]	p_config	Initial configuration. Default configuration used if NULL.
[in]	timer_event_handler	Event handler provided by the user.

Return values

NRF_SUCCESS	If initialization was successful.
NRF_ERROR_INVALID_PARAM	If invalid parameters were supplied.

uint32_t nrf_drv_timer_ms_to_ticks	(	nrf_drv_timer_t const *const	p_instance,
		uint32_t	timer_ms
	)

Function for converting milliseconds to ticks.

Parameters

[in]	p_instance	Timer.
[in]	timer_ms	Time in milliseconds.

Note: Function asserts if there was a 32-bit integer overflow.

Return values

Number of ticks.

void nrf_drv_timer_pause ( nrf_drv_timer_t const *const p_instance )

Function for pausing the timer.

Parameters

[in] p_instance Timer

void nrf_drv_timer_resume ( nrf_drv_timer_t const *const p_instance )

Function for resuming the timer.

Parameters

[in] p_instance Timer.

uint32_t nrf_drv_timer_task_address_get	(	nrf_drv_timer_t const *const	p_instance,
		nrf_timer_task_t	timer_task
	)

Function for returning the address of a specific timer task.

Parameters

[in]	p_instance	Timer.
[in]	timer_task	Timer task.

Return values

Task address.

void nrf_drv_timer_uninit ( nrf_drv_timer_t const *const p_instance )

Function for uninitializing the timer.

Parameters

[in] p_instance Timer.

uint32_t nrf_drv_timer_us_to_ticks	(	nrf_drv_timer_t const *const	p_instance,
		uint32_t	timer_us
	)

Function for converting microseconds to ticks.

Parameters

[in]	p_instance	Timer.
[in]	timer_us	Time in microseconds.

Note: Function asserts if there was a 32-bit integer overflow.

Return values

Number of ticks.

Data Structures

Macros

Typedefs

Functions

Detailed Description

Macro Definition Documentation

Typedef Documentation

Function Documentation