WDT Exported Functions

Collaboration diagram for WDT Exported Functions:

Macros
#define	WDT_CLEAR_RESET_FLAG()   (WDT->CTL = (WDT->CTL & ~(WDT_CTL_IF_Msk | WDT_CTL_WKF_Msk)) | WDT_CTL_RSTF_Msk)
	Clear WDT Reset System Flag. More...
#define	WDT_CLEAR_TIMEOUT_INT_FLAG()   (WDT->CTL = (WDT->CTL & ~(WDT_CTL_RSTF_Msk | WDT_CTL_WKF_Msk)) | WDT_CTL_IF_Msk)
	Clear WDT Time-out Interrupt Flag. More...
#define	WDT_CLEAR_TIMEOUT_WAKEUP_FLAG()   (WDT->CTL = (WDT->CTL & ~(WDT_CTL_RSTF_Msk | WDT_CTL_IF_Msk)) | WDT_CTL_WKF_Msk)
	Clear WDT Wake-up Flag. More...
#define	WDT_GET_RESET_FLAG()   ((WDT->CTL & WDT_CTL_RSTF_Msk)? 1 : 0)
	Get WDT Time-out Reset Flag. More...
#define	WDT_GET_TIMEOUT_INT_FLAG()   ((WDT->CTL & WDT_CTL_IF_Msk)? 1 : 0)
	Get WDT Time-out Interrupt Flag. More...
#define	WDT_GET_TIMEOUT_WAKEUP_FLAG()   ((WDT->CTL & WDT_CTL_WKF_Msk)? 1 : 0)
	Get WDT Time-out Wake-up Flag. More...
#define	WDT_RESET_COUNTER()   (WDT->CTL = (WDT->CTL & ~(WDT_CTL_IF_Msk | WDT_CTL_WKF_Msk | WDT_CTL_RSTF_Msk)) | WDT_CTL_RSTCNT_Msk)
	Reset WDT Counter. More...

Functions
static __INLINE void	WDT_Close (void)
	Stop WDT Counting. More...
static __INLINE void	WDT_EnableInt (void)
	Enable WDT Time-out Interrupt. More...
static __INLINE void	WDT_DisableInt (void)
	Disable WDT Time-out Interrupt. More...
void	WDT_Open (uint32_t u32TimeoutInterval, uint32_t u32ResetDelay, uint32_t u32EnableReset, uint32_t u32EnableWakeup)
	Initialize WDT and start counting. More...

Detailed Description

Macro Definition Documentation

WDT_CLEAR_RESET_FLAG

#define WDT_CLEAR_RESET_FLAG

(

)

(WDT->CTL = (WDT->CTL & ~(WDT_CTL_IF_Msk | WDT_CTL_WKF_Msk)) | WDT_CTL_RSTF_Msk)

Clear WDT Reset System Flag.

Parameters

None

Returns

None

This macro clears WDT time-out reset system flag.

Definition at line 68 of file wdt.h.

WDT_CLEAR_TIMEOUT_INT_FLAG

#define WDT_CLEAR_TIMEOUT_INT_FLAG

(

)

(WDT->CTL = (WDT->CTL & ~(WDT_CTL_RSTF_Msk | WDT_CTL_WKF_Msk)) | WDT_CTL_IF_Msk)

Clear WDT Time-out Interrupt Flag.

Parameters

None

Returns

None

This macro clears WDT time-out interrupt flag.

Definition at line 79 of file wdt.h.

WDT_CLEAR_TIMEOUT_WAKEUP_FLAG

#define WDT_CLEAR_TIMEOUT_WAKEUP_FLAG

(

)

(WDT->CTL = (WDT->CTL & ~(WDT_CTL_RSTF_Msk | WDT_CTL_IF_Msk)) | WDT_CTL_WKF_Msk)

Clear WDT Wake-up Flag.

Parameters

None

Returns

None

This macro clears WDT time-out wake-up system flag.

Definition at line 90 of file wdt.h.

WDT_GET_RESET_FLAG

#define WDT_GET_RESET_FLAG

(

)

((WDT->CTL & WDT_CTL_RSTF_Msk)? 1 : 0)

Get WDT Time-out Reset Flag.

Parameters

None

Return values

0	WDT time-out reset system did not occur
1	WDT time-out reset system occurred

This macro indicates system has been reset by WDT time-out reset or not.

Definition at line 102 of file wdt.h.

WDT_GET_TIMEOUT_INT_FLAG

#define WDT_GET_TIMEOUT_INT_FLAG

(

)

((WDT->CTL & WDT_CTL_IF_Msk)? 1 : 0)

Get WDT Time-out Interrupt Flag.

Parameters

None

Return values

0	WDT time-out interrupt did not occur
1	WDT time-out interrupt occurred

This macro indicates WDT time-out interrupt occurred or not.

Definition at line 114 of file wdt.h.

WDT_GET_TIMEOUT_WAKEUP_FLAG

#define WDT_GET_TIMEOUT_WAKEUP_FLAG

(

)

((WDT->CTL & WDT_CTL_WKF_Msk)? 1 : 0)

Get WDT Time-out Wake-up Flag.

Parameters

None

Return values

0	WDT time-out interrupt does not cause CPU wake-up
1	WDT time-out interrupt event cause CPU wake-up

This macro indicates WDT time-out interrupt event has waked up system or not.

Definition at line 126 of file wdt.h.

WDT_RESET_COUNTER

#define WDT_RESET_COUNTER

(

)

(WDT->CTL = (WDT->CTL & ~(WDT_CTL_IF_Msk | WDT_CTL_WKF_Msk | WDT_CTL_RSTF_Msk)) | WDT_CTL_RSTCNT_Msk)

Reset WDT Counter.

Parameters

None

Returns

None

This macro is used to reset the internal 18-bit WDT up counter value.

Note

If WDT is activated and time-out reset system function is enabled also, user should
reset the 18-bit WDT up counter value to avoid generate WDT time-out reset signal to
reset system before the WDT time-out reset delay period expires.

Definition at line 140 of file wdt.h.

Function Documentation

WDT_Close()

static __INLINE void WDT_Close ( void  )

static

Stop WDT Counting.

Parameters

None

Returns

None

This function will stop WDT counting and disable WDT module.

Definition at line 151 of file wdt.h.

WDT_DisableInt()

static __INLINE void WDT_DisableInt ( void  )

static

Disable WDT Time-out Interrupt.

Parameters

None

Returns

None

This function will disable the WDT time-out interrupt function.

Definition at line 181 of file wdt.h.

WDT_EnableInt()

static __INLINE void WDT_EnableInt ( void  )

static

Enable WDT Time-out Interrupt.

Parameters

None

Returns

None

This function will enable the WDT time-out interrupt function.

Definition at line 166 of file wdt.h.

WDT_Open()

void WDT_Open	(	uint32_t	u32TimeoutInterval,
		uint32_t	u32ResetDelay,
		uint32_t	u32EnableReset,
		uint32_t	u32EnableWakeup
	)

Initialize WDT and start counting.

Parameters

[in]	u32TimeoutInterval	Time-out interval period of WDT module. Valid values are: WDT_TIMEOUT_2POW4 WDT_TIMEOUT_2POW6 WDT_TIMEOUT_2POW8 WDT_TIMEOUT_2POW10 WDT_TIMEOUT_2POW12 WDT_TIMEOUT_2POW14 WDT_TIMEOUT_2POW16 WDT_TIMEOUT_2POW18
[in]	u32ResetDelay	Configure WDT time-out reset delay period. Valid values are: WDT_RESET_DELAY_1026CLK WDT_RESET_DELAY_130CLK WDT_RESET_DELAY_18CLK WDT_RESET_DELAY_3CLK
[in]	u32EnableReset	Enable WDT time-out reset system function. Valid values are TRUE and FALSE.
[in]	u32EnableWakeup	Enable WDT time-out wake-up system function. Valid values are TRUE and FALSE.

Returns

None

This function makes WDT module start counting with different time-out interval, reset delay period and choose to
enable or disable WDT time-out reset system or wake-up system.

Note

Please make sure that Register Write-Protection Function has been disabled before using this function.

Definition at line 53 of file wdt.c.