Wdog

Data Structures
struct	_wdog_work_mode
	Defines WDOG work mode. More...
struct	_wdog_config
	Describes WDOG configuration structure. More...

Variables
bool	_wdog_work_mode::enableWait
bool	_wdog_work_mode::enableStop
bool	_wdog_work_mode::enableDebug
bool	_wdog_config::enableWdog
wdog_work_mode_t	_wdog_config::workMode
bool	_wdog_config::enableInterrupt
uint16_t	_wdog_config::timeoutValue
uint16_t	_wdog_config::interruptTimeValue
bool	_wdog_config::softwareResetExtension
bool	_wdog_config::enablePowerDown
bool	_wdog_config::enableTimeOutAssert

Refresh sequence
enum	_wdog_interrupt_enable { kWDOG_InterruptEnable = WDOG_WICR_WIE_MASK }
	WDOG interrupt configuration structure, default settings all disabled. More...
enum	_wdog_status_flags {   kWDOG_RunningFlag = WDOG_WCR_WDE_MASK , kWDOG_PowerOnResetFlag = WDOG_WRSR_POR_MASK , kWDOG_TimeoutResetFlag = WDOG_WRSR_TOUT_MASK , kWDOG_SoftwareResetFlag = WDOG_WRSR_SFTW_MASK ,   kWDOG_InterruptFlag = WDOG_WICR_WTIS_MASK }
	WDOG status flags. More...
typedef struct _wdog_work_mode	wdog_work_mode_t
	Defines WDOG work mode.
typedef struct _wdog_config	wdog_config_t
	Describes WDOG configuration structure.
#define	WDOG_REFRESH_KEY   (0xAAAA5555U)

WDOG Initialization and De-initialization.
void	WDOG_GetDefaultConfig (wdog_config_t *config)
	Initializes the WDOG configuration structure. More...
void	WDOG_Init (WDOG_Type *base, const wdog_config_t *config)
	Initializes the WDOG. More...
void	WDOG_Deinit (WDOG_Type *base)
	Shuts down the WDOG. More...
uint16_t	WDOG_GetStatusFlags (WDOG_Type *base)
	Gets the WDOG all reset status flags. More...
void	WDOG_ClearInterruptStatus (WDOG_Type *base, uint16_t mask)
	Clears the WDOG flag. More...
void	WDOG_Refresh (WDOG_Type *base)
	Refreshes the WDOG timer. More...

Driver version
#define	FSL_WDOG_DRIVER_VERSION   (MAKE_VERSION(2, 1, 1))
	Defines WDOG driver version.

Detailed Description

Enumeration Type Documentation

_wdog_interrupt_enable

enum _wdog_interrupt_enable

WDOG interrupt configuration structure, default settings all disabled.

This structure contains the settings for all of the WDOG interrupt configurations.

Enumerator
kWDOG_InterruptEnable	WDOG timeout generates an interrupt before reset

_wdog_status_flags

enum _wdog_status_flags

WDOG status flags.

This structure contains the WDOG status flags for use in the WDOG functions.

Enumerator
kWDOG_RunningFlag	Running flag, set when WDOG is enabled
kWDOG_PowerOnResetFlag	Power On flag, set when reset is the result of a powerOnReset
kWDOG_TimeoutResetFlag	Timeout flag, set when reset is the result of a timeout
kWDOG_SoftwareResetFlag	Software flag, set when reset is the result of a software
kWDOG_InterruptFlag	interrupt flag,whether interrupt has occurred or not

Function Documentation

WDOG_ClearInterruptStatus()

void WDOG_ClearInterruptStatus	(	WDOG_Type *	base,
		uint16_t	mask
	)

Clears the WDOG flag.

This function clears the WDOG status flag.

This is an example for clearing the interrupt flag.

WDOG_ClearStatusFlags(wdog_base,KWDOG_InterruptFlag);

Parameters

base	WDOG peripheral base address
mask	The status flags to clear. The parameter could be any combination of the following values. kWDOG_TimeoutFlag

brief Clears the WDOG flag.

This function clears the WDOG status flag.

This is an example for clearing the interrupt flag. code WDOG_ClearStatusFlags(wdog_base,KWDOG_InterruptFlag); endcode param base WDOG peripheral base address param mask The status flags to clear. The parameter could be any combination of the following values. kWDOG_TimeoutFlag

WDOG_Deinit()

void WDOG_Deinit

(

WDOG_Type *

base

)

Shuts down the WDOG.

This function shuts down the WDOG. Watchdog Enable bit is a write one once only bit. It is not possible to clear this bit by a software write, once the bit is set. This bit(WDE) can be set/reset only in debug mode(exception).

brief Shuts down the WDOG.

This function shuts down the WDOG. Watchdog Enable bit is a write one once only bit. It is not possible to clear this bit by a software write, once the bit is set. This bit(WDE) can be set/reset only in debug mode(exception).

WDOG_GetDefaultConfig()

void WDOG_GetDefaultConfig

(

wdog_config_t *

config

)

Initializes the WDOG configuration structure.

This function initializes the WDOG configuration structure to default values. The default values are as follows.

wdogConfig->enableWdog = true;
wdogConfig->workMode.enableWait = true;
wdogConfig->workMode.enableStop = false;
wdogConfig->workMode.enableDebug = false;
wdogConfig->enableInterrupt = false;
wdogConfig->enablePowerdown = false;
wdogConfig->resetExtension = flase;
wdogConfig->timeoutValue = 0xFFU;
wdogConfig->interruptTimeValue = 0x04u;

Parameters

config

Pointer to the WDOG configuration structure.

See also

wdog_config_t

brief Initializes the WDOG configuration structure.

This function initializes the WDOG configuration structure to default values. The default values are as follows. code wdogConfig->enableWdog = true; wdogConfig->workMode.enableWait = true; wdogConfig->workMode.enableStop = false; wdogConfig->workMode.enableDebug = false; wdogConfig->enableInterrupt = false; wdogConfig->enablePowerdown = false; wdogConfig->resetExtension = flase; wdogConfig->timeoutValue = 0xFFU; wdogConfig->interruptTimeValue = 0x04u; endcode

param config Pointer to the WDOG configuration structure. see wdog_config_t

WDOG_GetStatusFlags()

uint16_t WDOG_GetStatusFlags

(

WDOG_Type *

base

)

Gets the WDOG all reset status flags.

This function gets all reset status flags.

uint16_t status;
status = WDOG_GetStatusFlags (wdog_base);

Parameters

base	WDOG peripheral base address

Returns

State of the status flag: asserted (true) or not-asserted (false).

See also

_wdog_status_flags

• true: a related status flag has been set.
• false: a related status flag is not set.

brief Gets the WDOG all reset status flags.

This function gets all reset status flags.

code uint16_t status; status = WDOG_GetStatusFlags (wdog_base); endcode param base WDOG peripheral base address return State of the status flag: asserted (true) or not-asserted (false).see _wdog_status_flags

• true: a related status flag has been set.
• false: a related status flag is not set.

WDOG_Init()

void WDOG_Init	(	WDOG_Type *	base,
		const wdog_config_t *	config
	)

Initializes the WDOG.

This function initializes the WDOG. When called, the WDOG runs according to the configuration.

This is an example.

wdog_config_t config;
WDOG_GetDefaultConfig(&config);
config.timeoutValue = 0xffU;
config->interruptTimeValue = 0x04u;
WDOG_Init(wdog_base,&config);

Parameters

base	WDOG peripheral base address
config	The configuration of WDOG

brief Initializes the WDOG.

This function initializes the WDOG. When called, the WDOG runs according to the configuration.

This is an example. code wdog_config_t config; WDOG_GetDefaultConfig(&config); config.timeoutValue = 0xffU; config->interruptTimeValue = 0x04u; WDOG_Init(wdog_base,&config); endcode

param base WDOG peripheral base address param config The configuration of WDOG

WDOG_Refresh()

void WDOG_Refresh

(

WDOG_Type *

base

)

Refreshes the WDOG timer.

This function feeds the WDOG. This function should be called before the WDOG timer is in timeout. Otherwise, a reset is asserted.

Parameters

base	WDOG peripheral base address

brief Refreshes the WDOG timer.

This function feeds the WDOG. This function should be called before the WDOG timer is in timeout. Otherwise, a reset is asserted.

param base WDOG peripheral base address

Variable Documentation

enableDebug

bool _wdog_work_mode::enableDebug

continue or suspend WDOG in debug mode

enableInterrupt

bool _wdog_config::enableInterrupt

Enables or disables WDOG interrupt

enablePowerDown

bool _wdog_config::enablePowerDown

power down enable bit

enableStop

bool _wdog_work_mode::enableStop

continue or suspend WDOG in stop mode

enableTimeOutAssert

bool _wdog_config::enableTimeOutAssert

Enable WDOG_B timeout assertion.

enableWait

bool _wdog_work_mode::enableWait

continue or suspend WDOG in wait mode

enableWdog

bool _wdog_config::enableWdog

Enables or disables WDOG

interruptTimeValue

uint16_t _wdog_config::interruptTimeValue

Interrupt count timeout value

softwareResetExtension

bool _wdog_config::softwareResetExtension

software reset extension

timeoutValue

uint16_t _wdog_config::timeoutValue

Timeout value

workMode

wdog_work_mode_t _wdog_config::workMode

Configures WDOG work mode in debug stop and wait mode