Enumerations
enum	DL_WWDT_CLOCK_DIVIDE { DL_WWDT_CLOCK_DIVIDE_1 = 0x00000000, DL_WWDT_CLOCK_DIVIDE_2 = 0x00000001, DL_WWDT_CLOCK_DIVIDE_3 = 0x00000002, DL_WWDT_CLOCK_DIVIDE_4 = 0x00000003, DL_WWDT_CLOCK_DIVIDE_5 = 0x00000004, DL_WWDT_CLOCK_DIVIDE_6 = 0x00000005, DL_WWDT_CLOCK_DIVIDE_7 = 0x00000006, DL_WWDT_CLOCK_DIVIDE_8 = 0x00000007 }

enum	DL_WWDT_WINDOW { DL_WWDT_WINDOW0 = WWDT_WWDTCTL1_WINSEL_WIN0, DL_WWDT_WINDOW1 = WWDT_WWDTCTL1_WINSEL_WIN1 }

enum	DL_WWDT_WINDOW_PERIOD { DL_WWDT_WINDOW_PERIOD_0 = WWDT_WWDTCTL0_WINDOW0_SIZE_0, DL_WWDT_WINDOW_PERIOD_12 = WWDT_WWDTCTL0_WINDOW0_SIZE_12, DL_WWDT_WINDOW_PERIOD_18 = WWDT_WWDTCTL0_WINDOW0_SIZE_18, DL_WWDT_WINDOW_PERIOD_25 = WWDT_WWDTCTL0_WINDOW0_SIZE_25, DL_WWDT_WINDOW_PERIOD_50 = WWDT_WWDTCTL0_WINDOW0_SIZE_50, DL_WWDT_WINDOW_PERIOD_75 = WWDT_WWDTCTL0_WINDOW0_SIZE_75, DL_WWDT_WINDOW_PERIOD_81 = WWDT_WWDTCTL0_WINDOW0_SIZE_81, DL_WWDT_WINDOW_PERIOD_87 = WWDT_WWDTCTL0_WINDOW0_SIZE_87 }

enum	DL_WWDT_TIMER_PERIOD { DL_WWDT_TIMER_PERIOD_6_BITS = WWDT_WWDTCTL0_PER_EN_6, DL_WWDT_TIMER_PERIOD_8_BITS = WWDT_WWDTCTL0_PER_EN_8, DL_WWDT_TIMER_PERIOD_10_BITS = WWDT_WWDTCTL0_PER_EN_10, DL_WWDT_TIMER_PERIOD_12_BITS = WWDT_WWDTCTL0_PER_EN_12, DL_WWDT_TIMER_PERIOD_15_BITS = WWDT_WWDTCTL0_PER_EN_15, DL_WWDT_TIMER_PERIOD_18_BITS = WWDT_WWDTCTL0_PER_EN_18, DL_WWDT_TIMER_PERIOD_21_BITS = WWDT_WWDTCTL0_PER_EN_21, DL_WWDT_TIMER_PERIOD_25_BITS = WWDT_WWDTCTL0_PER_EN_25 }

enum	DL_WWDT_SLEEP_MODE { DL_WWDT_STOP_IN_SLEEP = WWDT_WWDTCTL0_STISM_STOP, DL_WWDT_RUN_IN_SLEEP = WWDT_WWDTCTL0_STISM_CONT }

enum	DL_WWDT_MODE { DL_WWDT_WATCHDOG_MODE = 0x0, DL_WWDT_INTERVAL_TIMER_MODE = WWDT_WWDTCTL0_MODE_INTERVAL }

enum	DL_WWDT_IIDX { DL_WWDT_IIDX_NO_INT = WWDT_IIDX_STAT_NO_INTR, DL_WWDT_IIDX_INTERVAL_TIMER = WWDT_IIDX_STAT_INTTIM }

Functions
__STATIC_INLINE void	DL_WWDT_initWatchdogMode (WWDT_Regs *wwdt, DL_WWDT_CLOCK_DIVIDE divider, DL_WWDT_TIMER_PERIOD period, DL_WWDT_SLEEP_MODE sleepMode, DL_WWDT_WINDOW_PERIOD window0ClosedPeriod, DL_WWDT_WINDOW_PERIOD window1ClosedPeriod)
	Initializes the Window Watchdog Timer in watchdog mode. More...

__STATIC_INLINE void	DL_WWDT_initIntervalTimerMode (WWDT_Regs *wwdt, DL_WWDT_CLOCK_DIVIDE divider, DL_WWDT_TIMER_PERIOD period, DL_WWDT_SLEEP_MODE sleepMode)
	Initializes the Window Watchdog Timer in interval timer mode. More...

__STATIC_INLINE void	DL_WWDT_enablePower (WWDT_Regs *wwdt)
	Enables power on WWDT module. More...

__STATIC_INLINE void	DL_WWDT_disablePower (WWDT_Regs *wwdt)
	Disables power on wwdt module. More...

__STATIC_INLINE bool	DL_WWDT_isPowerEnabled (WWDT_Regs *wwdt)
	Returns if power on wwdt module. More...

__STATIC_INLINE void	DL_WWDT_reset (WWDT_Regs *wwdt)
	Resets wwdt peripheral. More...

__STATIC_INLINE bool	DL_WWDT_isReset (WWDT_Regs *wwdt)
	Returns if wwdt peripheral was reset. More...

__STATIC_INLINE void	DL_WWDT_restart (WWDT_Regs *wwdt)
	Restarts the Window Watchdog. More...

__STATIC_INLINE bool	DL_WWDT_isRunning (WWDT_Regs *wwdt)
	Checks if the Window Watchdog Timer is actively running. More...

__STATIC_INLINE void	DL_WWDT_setActiveWindow (WWDT_Regs *wwdt, DL_WWDT_WINDOW window)
	Set the active window being used. More...

__STATIC_INLINE DL_WWDT_WINDOW	DL_WWDT_getActiveWindow (WWDT_Regs *wwdt)
	Get the active window being used. More...

__STATIC_INLINE DL_WWDT_SLEEP_MODE	DL_WWDT_getSleepMode (WWDT_Regs *wwdt)
	Get the sleep mode being used. More...

__STATIC_INLINE DL_WWDT_MODE	DL_WWDT_getMode (WWDT_Regs *wwdt)
	Get the mode the watchdog is running in. More...

__STATIC_INLINE DL_WWDT_WINDOW_PERIOD	DL_WWDT_getWindowPeriod (WWDT_Regs *wwdt, DL_WWDT_WINDOW window)
	Get the window closed percentage for a watchdog window. More...

__STATIC_INLINE DL_WWDT_TIMER_PERIOD	DL_WWDT_getTimerPeriod (WWDT_Regs *wwdt)
	Get the timer period for the watchdog. More...

__STATIC_INLINE DL_WWDT_CLOCK_DIVIDE	DL_WWDT_getClockDivider (WWDT_Regs *wwdt)
	Get the clock divider for the watchdog. More...

__STATIC_INLINE void	DL_WWDT_enableInterrupt (WWDT_Regs *wwdt)
	Enable WWDT interrupt. More...

__STATIC_INLINE void	DL_WWDT_disableInterrupt (WWDT_Regs *wwdt)
	Disable WWDT interrupt. More...

__STATIC_INLINE bool	DL_WWDT_isInterruptEnabled (WWDT_Regs *wwdt)
	Check if WWDT interrupt is enabled. More...

__STATIC_INLINE bool	DL_WWDT_getEnabledInterruptStatus (WWDT_Regs *wwdt)
	Check interrupt flag of enabled WWDT interrupt. More...

__STATIC_INLINE uint32_t	DL_WWDT_getRawInterruptStatus (WWDT_Regs *wwdt)
	Check interrupt flag of any WWDT interrupt. More...

__STATIC_INLINE DL_WWDT_IIDX	DL_WWDT_getPendingInterrupt (WWDT_Regs *wwdt)
	Get highest priority pending WWDT interrupt. More...

__STATIC_INLINE void	DL_WWDT_clearInterruptStatus (WWDT_Regs *wwdt)
	Clear pending WWDT interrupt. More...

Detailed Description

Overview

The Window Watchdog Timer Driver Library allows full configuration of the MSPM0 WWDT module. The window watchdog timer (WWDT) supervises code execution. If the application software does not successfully reset the window watchdog within the programmed open time window, the window watchdog generates a SYSRST.

Enumeration Type Documentation

§ DL_WWDT_CLOCK_DIVIDE

enum DL_WWDT_CLOCK_DIVIDE

Enumerator
DL_WWDT_CLOCK_DIVIDE_1	Clock source divide by 1
DL_WWDT_CLOCK_DIVIDE_2	Clock source divide by 2
DL_WWDT_CLOCK_DIVIDE_3	Clock source divide by 3
DL_WWDT_CLOCK_DIVIDE_4	Clock source divide by 4
DL_WWDT_CLOCK_DIVIDE_5	Clock source divide by 5
DL_WWDT_CLOCK_DIVIDE_6	Clock source divide by 6
DL_WWDT_CLOCK_DIVIDE_7	Clock source divide by 7
DL_WWDT_CLOCK_DIVIDE_8	Clock source divide by 8

§ DL_WWDT_WINDOW

enum DL_WWDT_WINDOW

Enumerator
DL_WWDT_WINDOW0	Window 0 active
DL_WWDT_WINDOW1	Window 1 active

§ DL_WWDT_WINDOW_PERIOD

enum DL_WWDT_WINDOW_PERIOD

Enumerator
DL_WWDT_WINDOW_PERIOD_0	0% closed window period
DL_WWDT_WINDOW_PERIOD_12	12% closed window period
DL_WWDT_WINDOW_PERIOD_18	18% closed window period
DL_WWDT_WINDOW_PERIOD_25	25% closed window period
DL_WWDT_WINDOW_PERIOD_50	50% closed window period
DL_WWDT_WINDOW_PERIOD_75	75% closed window period
DL_WWDT_WINDOW_PERIOD_81	81% closed window period
DL_WWDT_WINDOW_PERIOD_87	87% closed window period

§ DL_WWDT_TIMER_PERIOD

enum DL_WWDT_TIMER_PERIOD

Enumerator
DL_WWDT_TIMER_PERIOD_6_BITS	2^6 timer period count
DL_WWDT_TIMER_PERIOD_8_BITS	2^8 timer period count
DL_WWDT_TIMER_PERIOD_10_BITS	2^10 timer period count
DL_WWDT_TIMER_PERIOD_12_BITS	2^12 timer period count
DL_WWDT_TIMER_PERIOD_15_BITS	2^15 timer period count
DL_WWDT_TIMER_PERIOD_18_BITS	2^18 timer period count
DL_WWDT_TIMER_PERIOD_21_BITS	2^21 timer period count
DL_WWDT_TIMER_PERIOD_25_BITS	2^25 timer period count

§ DL_WWDT_SLEEP_MODE

enum DL_WWDT_SLEEP_MODE

Enumerator
DL_WWDT_STOP_IN_SLEEP	Stop the watchdog while in sleep
DL_WWDT_RUN_IN_SLEEP	Keep the watchdog running in sleep

§ DL_WWDT_MODE

enum DL_WWDT_MODE

Enumerator
DL_WWDT_WATCHDOG_MODE	The watchdog is in watchdog mode
DL_WWDT_INTERVAL_TIMER_MODE	The watchdog is in interval timer mode

§ DL_WWDT_IIDX

enum DL_WWDT_IIDX

Enumerator
DL_WWDT_IIDX_NO_INT	Interrupt index for WWDT if no interrupt is pending
DL_WWDT_IIDX_INTERVAL_TIMER	WWDT interrupt index for interval timer

Function Documentation

§ DL_WWDT_initWatchdogMode()

__STATIC_INLINE void DL_WWDT_initWatchdogMode	(	WWDT_Regs *	wwdt,
		DL_WWDT_CLOCK_DIVIDE	divider,
		DL_WWDT_TIMER_PERIOD	period,
		DL_WWDT_SLEEP_MODE	sleepMode,
		DL_WWDT_WINDOW_PERIOD	window0ClosedPeriod,
		DL_WWDT_WINDOW_PERIOD	window1ClosedPeriod
	)

Initializes the Window Watchdog Timer in watchdog mode.

While in watchdog mode, the Window Watchdog Timer must be serviced periodically or the device will be reset. After calling this initialization API the watchdog will automatically start running with whatever window is currently selected. See DL_WWDT_setActiveWindow for setting the active window, this is typically window 0 upon startup.

Once running, the watchdog will need to be restarted periodically with DL_WWDT_restart.

The watchdog can only be initialized once, so this API can only be called once, and you may not later call DL_WWDT_initIntervalTimerMode.

Parameters

[in]	wwdt	Pointer to the register overlay for peripheral
[in]	divider	Clock divider for the timer. One of DL_WWDT_CLOCK_DIVIDE.
[in]	period	Period for the timer. One of DL_WWDT_TIMER_PERIOD.
[in]	sleepMode	Enable/disable the timer running in sleep mode. One of DL_WWDT_SLEEP_MODE.
[in]	window0ClosedPeriod	The percentage of the total period that reset window 0 should be closed. One of DL_WWDT_WINDOW_PERIOD.
[in]	window1ClosedPeriod	The percentage of the total period that reset window 1 should be closed. One of DL_WWDT_WINDOW_PERIOD.

See also: DL_WWDT_initIntervalTimerMode; DL_WWDT_setActiveWindow; DL_WWDT_restart

§ DL_WWDT_initIntervalTimerMode()

__STATIC_INLINE void DL_WWDT_initIntervalTimerMode	(	WWDT_Regs *	wwdt,
		DL_WWDT_CLOCK_DIVIDE	divider,
		DL_WWDT_TIMER_PERIOD	period,
		DL_WWDT_SLEEP_MODE	sleepMode
	)

Initializes the Window Watchdog Timer in interval timer mode.

The Window Watchdog Timer can be used as a simple interval timer if you do not need watchdog/reset functionality. After calling this initialization API the timer will automatically start running and start interrupting periodically.

The WWDT can only be initialized once, so this API can only be called once, and you may not later call DL_WWDT_initWatchdogMode.

Parameters

[in]	wwdt	Pointer to the register overlay for peripheral
[in]	divider	Clock divider for the timer. One of DL_WWDT_CLOCK_DIVIDE.
[in]	period	Period for the timer. One of DL_WWDT_TIMER_PERIOD.
[in]	sleepMode	Enable/disable the timer running in sleep mode. One of DL_WWDT_SLEEP_MODE.

See also: DL_WWDT_initWatchdogMode

§ DL_WWDT_enablePower()

__STATIC_INLINE void DL_WWDT_enablePower ( WWDT_Regs * wwdt )

Enables power on WWDT module.

Parameters

wwdt	Pointer to the register overlay for the peripheral

§ DL_WWDT_disablePower()

__STATIC_INLINE void DL_WWDT_disablePower ( WWDT_Regs * wwdt )

Disables power on wwdt module.

Parameters

wwdt	Pointer to the register overlay for the peripheral

§ DL_WWDT_isPowerEnabled()

__STATIC_INLINE bool DL_WWDT_isPowerEnabled ( WWDT_Regs * wwdt )

Returns if power on wwdt module.

Parameters

wwdt	Pointer to the register overlay for the peripheral

Returns: true if power is enabled; false if power is disabled

§ DL_WWDT_reset()

__STATIC_INLINE void DL_WWDT_reset ( WWDT_Regs * wwdt )

Resets wwdt peripheral.

Parameters

wwdt	Pointer to the register overlay for the peripheral

§ DL_WWDT_isReset()

__STATIC_INLINE bool DL_WWDT_isReset ( WWDT_Regs * wwdt )

Returns if wwdt peripheral was reset.

Parameters

wwdt	Pointer to the register overlay for the peripheral

Returns: true if peripheral was reset; false if peripheral wasn't reset

§ DL_WWDT_restart()

__STATIC_INLINE void DL_WWDT_restart ( WWDT_Regs * wwdt )

Restarts the Window Watchdog.

When the Window Watchdog Timer is in watchdog mode it must be periodically serviced to avoid a hardware reset. This API must be called after the closed window of the watchdog has passed but before the watchdog resets the device.

Parameters

[in] wwdt Pointer to the register overlay for peripheral

§ DL_WWDT_isRunning()

__STATIC_INLINE bool DL_WWDT_isRunning ( WWDT_Regs * wwdt )

Checks if the Window Watchdog Timer is actively running.

Parameters

[in] wwdt Pointer to the register overlay for peripheral

Returns: Returns the running status of the Window Watchdog Timer

Return values

true	The Window Watchdog Timer is running
false	The Window Watchdog Timer is not running

§ DL_WWDT_setActiveWindow()

__STATIC_INLINE void DL_WWDT_setActiveWindow	(	WWDT_Regs *	wwdt,
		DL_WWDT_WINDOW	window
	)

Set the active window being used.

The Window Watchdog Timer module allows you to switch between two different configured windows. This allows you to configure the watchdog with two different window sizes and switch between them during your application.

Parameters

[in]	wwdt	Pointer to the register overlay for peripheral
[in]	window	The window to set as active. One of DL_WWDT_WINDOW.

§ DL_WWDT_getActiveWindow()

__STATIC_INLINE DL_WWDT_WINDOW DL_WWDT_getActiveWindow ( WWDT_Regs * wwdt )

Get the active window being used.

Parameters

[in] wwdt Pointer to the register overlay for peripheral

Returns: The active window being used

Return values

One	of DL_WWDT_WINDOW

§ DL_WWDT_getSleepMode()

__STATIC_INLINE DL_WWDT_SLEEP_MODE DL_WWDT_getSleepMode ( WWDT_Regs * wwdt )

Get the sleep mode being used.

Parameters

[in] wwdt Pointer to the register overlay for peripheral

Returns: The current sleep mode

Return values

One	of DL_WWDT_SLEEP_MODE

§ DL_WWDT_getMode()

__STATIC_INLINE DL_WWDT_MODE DL_WWDT_getMode ( WWDT_Regs * wwdt )

Get the mode the watchdog is running in.

Parameters

[in] wwdt Pointer to the register overlay for peripheral

Returns: The current mode the watchdog is running in

Return values

One	of DL_WWDT_MODE

§ DL_WWDT_getWindowPeriod()

__STATIC_INLINE DL_WWDT_WINDOW_PERIOD DL_WWDT_getWindowPeriod	(	WWDT_Regs *	wwdt,
		DL_WWDT_WINDOW	window
	)

Get the window closed percentage for a watchdog window.

Parameters

[in]	wwdt	Pointer to the register overlay for peripheral
[in]	window	The window to get the closed window percentage of. One of DL_WWDT_WINDOW.

Returns: The desired window's closed percentage

Return values

One	of DL_WWDT_WINDOW_PERIOD

References DL_WWDT_WINDOW0.

§ DL_WWDT_getTimerPeriod()

__STATIC_INLINE DL_WWDT_TIMER_PERIOD DL_WWDT_getTimerPeriod ( WWDT_Regs * wwdt )

Get the timer period for the watchdog.

Parameters

[in] wwdt Pointer to the register overlay for peripheral

Returns: The current timer period for the watchdog

Return values

One	of DL_WWDT_TIMER_PERIOD

§ DL_WWDT_getClockDivider()

__STATIC_INLINE DL_WWDT_CLOCK_DIVIDE DL_WWDT_getClockDivider ( WWDT_Regs * wwdt )

Get the clock divider for the watchdog.

Parameters

[in] wwdt Pointer to the register overlay for peripheral

Returns: The current clock divider used

Return values

One	of DL_WWDT_CLOCK_DIVIDE

§ DL_WWDT_enableInterrupt()

__STATIC_INLINE void DL_WWDT_enableInterrupt ( WWDT_Regs * wwdt )

Enable WWDT interrupt.

Parameters

[in] wwdt Pointer to the register overlay for the peripheral

§ DL_WWDT_disableInterrupt()

__STATIC_INLINE void DL_WWDT_disableInterrupt ( WWDT_Regs * wwdt )

Disable WWDT interrupt.

Parameters

[in] wwdt Pointer to the register overlay for the peripheral

§ DL_WWDT_isInterruptEnabled()

__STATIC_INLINE bool DL_WWDT_isInterruptEnabled ( WWDT_Regs * wwdt )

Check if WWDT interrupt is enabled.

Parameters

[in] wwdt Pointer to the register overlay for the peripheral

Returns: If the WWDT interrupt is enabled

Return values

true	The WWDT interrupt is enabled
false	The WWDT interrupt is disabled

§ DL_WWDT_getEnabledInterruptStatus()

__STATIC_INLINE bool DL_WWDT_getEnabledInterruptStatus ( WWDT_Regs * wwdt )

Check interrupt flag of enabled WWDT interrupt.

Checks if the WWDT interrupt that was previously enabled is pending.

Parameters

[in] wwdt Pointer to the register overlay for the peripheral

Returns: If the enabled WWDT interrupt is pending

Return values

true	The WWDT interrupt is pending
false	The WWDT interrupt is not pending

See also: DL_WWDT_enableInterrupt

§ DL_WWDT_getRawInterruptStatus()

__STATIC_INLINE uint32_t DL_WWDT_getRawInterruptStatus ( WWDT_Regs * wwdt )

Check interrupt flag of any WWDT interrupt.

Checks if the WWDT interrupt is pending. Interrupt does not have to be previously enabled.

Parameters

[in] wwdt Pointer to the register overlay for the peripheral

Returns: If the WWDT interrupt is pending

Return values

true	The WWDT interrupt is pending
false	The WWDT interrupt is not pending

§ DL_WWDT_getPendingInterrupt()

__STATIC_INLINE DL_WWDT_IIDX DL_WWDT_getPendingInterrupt ( WWDT_Regs * wwdt )

Get highest priority pending WWDT interrupt.

Checks if any of the WWDT interrupts are pending. Interrupts do not have to be previously enabled.

Parameters

[in] wwdt Pointer to the register overlay for the peripheral

Returns: The highest priority pending WWDT interrupt

Return values

One	of DL_WWDT_IIDX

§ DL_WWDT_clearInterruptStatus()

__STATIC_INLINE void DL_WWDT_clearInterruptStatus ( WWDT_Regs * wwdt )

Clear pending WWDT interrupt.

Parameters

[in] wwdt Pointer to the register overlay for the peripheral

Enumerations

Functions

Detailed Description

Overview

Enumeration Type Documentation

§ DL_WWDT_CLOCK_DIVIDE

§ DL_WWDT_WINDOW

§ DL_WWDT_WINDOW_PERIOD

§ DL_WWDT_TIMER_PERIOD

§ DL_WWDT_SLEEP_MODE

§ DL_WWDT_MODE

§ DL_WWDT_IIDX

Function Documentation

§ DL_WWDT_initWatchdogMode()

§ DL_WWDT_initIntervalTimerMode()

§ DL_WWDT_enablePower()

§ DL_WWDT_disablePower()

§ DL_WWDT_isPowerEnabled()

§ DL_WWDT_reset()

§ DL_WWDT_isReset()

§ DL_WWDT_restart()

§ DL_WWDT_isRunning()

§ DL_WWDT_setActiveWindow()

§ DL_WWDT_getActiveWindow()

§ DL_WWDT_getSleepMode()

§ DL_WWDT_getMode()

§ DL_WWDT_getWindowPeriod()

§ DL_WWDT_getTimerPeriod()

§ DL_WWDT_getClockDivider()

§ DL_WWDT_enableInterrupt()

§ DL_WWDT_disableInterrupt()

§ DL_WWDT_isInterruptEnabled()

§ DL_WWDT_getEnabledInterruptStatus()

§ DL_WWDT_getRawInterruptStatus()

§ DL_WWDT_getPendingInterrupt()

§ DL_WWDT_clearInterruptStatus()