WDT driver

Watchdog Timer (WDT) peripheral driver. More...

Modules
	WDT peripheral driver configuration

Data Structures
struct	nrfx_wdt_config_t
	Struct for WDT initialization. More...

Macros
#define	NRFX_WDT_IRQ_CONFIG   .interrupt_priority = NRFX_WDT_CONFIG_IRQ_PRIORITY
	WDT instance interrupt priority configuration.
#define	NRFX_WDT_DEAFULT_CONFIG
	WDT driver default configuration. More...

Typedefs
typedef void(*	nrfx_wdt_event_handler_t )(void)
	WDT event handler function type.
typedef nrf_wdt_rr_register_t	nrfx_wdt_channel_id
	WDT channel ID type.

Functions
nrfx_err_t	nrfx_wdt_init (nrfx_wdt_config_t const *p_config, nrfx_wdt_event_handler_t wdt_event_handler)
	This function initializes the watchdog. More...
nrfx_err_t	nrfx_wdt_channel_alloc (nrfx_wdt_channel_id *p_channel_id)
	Function for allocating a watchdog channel. More...
void	nrfx_wdt_enable (void)
	Function for starting the watchdog. More...
void	nrfx_wdt_feed (void)
	Function for feeding the watchdog. More...
void	nrfx_wdt_channel_feed (nrfx_wdt_channel_id channel_id)
	Function for feeding an invidual watchdog channel. More...
__STATIC_INLINE uint32_t	nrfx_wdt_ppi_task_addr (nrf_wdt_task_t task)
	Function for returning a requested task address for the WDT driver module. More...
__STATIC_INLINE uint32_t	nrfx_wdt_ppi_event_addr (nrf_wdt_event_t event)
	Function for returning a requested event address for the wdt driver module. More...

Detailed Description

Watchdog Timer (WDT) peripheral driver.

Macro Definition Documentation

#define NRFX_WDT_DEAFULT_CONFIG

Value:

{ \
 .behaviour = (nrf_wdt_behaviour_t)NRFX_WDT_CONFIG_BEHAVIOUR, \
 .reload_value = NRFX_WDT_CONFIG_RELOAD_VALUE, \
 NRFX_WDT_IRQ_CONFIG \
 }

WDT driver default configuration.

Function Documentation

nrfx_err_t nrfx_wdt_channel_alloc

(

nrfx_wdt_channel_id *

p_channel_id

)

Function for allocating a watchdog channel.

Note

This function can not be called after nrfx_wdt_start(void).

Parameters

[out]

p_channel_id

ID of granted channel.

Returns

NRFX_SUCCESS on success, otherwise an error code.

void nrfx_wdt_channel_feed

(

nrfx_wdt_channel_id

channel_id

)

Function for feeding an invidual watchdog channel.

Parameters

[in]

channel_id

ID of watchdog channel.

void nrfx_wdt_enable

(

void

)

Function for starting the watchdog.

Note

After calling this function the watchdog is started, so the user needs to feed all allocated watchdog channels to avoid reset. At least one watchdog channel must be allocated.

void nrfx_wdt_feed

(

void

)

Function for feeding the watchdog.

Function feeds all allocated watchdog channels.

nrfx_err_t nrfx_wdt_init	(	nrfx_wdt_config_t const *	p_config,
		nrfx_wdt_event_handler_t	wdt_event_handler
	)

This function initializes the watchdog.

Parameters

[in]	p_config	Pointer to the structure with the initial configuration.
[in]	wdt_event_handler	Event handler provided by the user. Ignored when NRFX_WDT_CONFIG_NO_IRQ option is enabled.

Returns

NRFX_SUCCESS on success, otherwise an error code.

__STATIC_INLINE uint32_t nrfx_wdt_ppi_event_addr

(

nrf_wdt_event_t

event

)

Function for returning a requested event address for the wdt driver module.

Parameters

[in]

event

One of the peripheral events.

Returns

Event address.

__STATIC_INLINE uint32_t nrfx_wdt_ppi_task_addr

(

nrf_wdt_task_t

task

)

Function for returning a requested task address for the WDT driver module.

Parameters

[in]

task

One of the peripheral tasks.

Returns

Task address.