Eric Lewiston / STM32L4xx_HAL_Driver

Hal Drivers for L4

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Trigger_Configuration
Functions

Trigger_Configuration
[LPTIM Exported Functions]

Functions

__STATIC_INLINE void LL_LPTIM_EnableTimeout (LPTIM_TypeDef *LPTIMx)
 Enable the timeout function.
__STATIC_INLINE void LL_LPTIM_DisableTimeout (LPTIM_TypeDef *LPTIMx)
 Disable the timeout function.
__STATIC_INLINE uint32_t LL_LPTIM_IsEnabledTimeout (LPTIM_TypeDef *LPTIMx)
 Indicate whether the timeout function is enabled.
__STATIC_INLINE void LL_LPTIM_TrigSw (LPTIM_TypeDef *LPTIMx)
 Start the LPTIM counter.
__STATIC_INLINE void LL_LPTIM_ConfigTrigger (LPTIM_TypeDef *LPTIMx, uint32_t Source, uint32_t Filter, uint32_t Polarity)
 Configure the external trigger used as a trigger event for the LPTIM.
__STATIC_INLINE uint32_t LL_LPTIM_GetTriggerSource (LPTIM_TypeDef *LPTIMx)
 Get actual external trigger source.
__STATIC_INLINE uint32_t LL_LPTIM_GetTriggerFilter (LPTIM_TypeDef *LPTIMx)
 Get actual external trigger filter.
__STATIC_INLINE uint32_t LL_LPTIM_GetTriggerPolarity (LPTIM_TypeDef *LPTIMx)
 Get actual external trigger polarity.

Function Documentation

__STATIC_INLINE void LL_LPTIM_ConfigTrigger ( LPTIM_TypeDef *  LPTIMx,
uint32_t  Source,
uint32_t  Filter,
uint32_t  Polarity 
)

Configure the external trigger used as a trigger event for the LPTIM.

Note:
This function must be called when the LPTIM instance is disabled.
An internal clock source must be present when a digital filter is required for the trigger. CFGR TRIGSEL LL_LPTIM_ConfigTrigger
CFGR TRGFLT LL_LPTIM_ConfigTrigger
CFGR TRIGEN LL_LPTIM_ConfigTrigger
Parameters:
LPTIMxLow-Power Timer instance
SourceThis parameter can be one of the following values:

  • LL_LPTIM_TRIG_SOURCE_GPIO
  • LL_LPTIM_TRIG_SOURCE_RTCALARMA
  • LL_LPTIM_TRIG_SOURCE_RTCALARMB
  • LL_LPTIM_TRIG_SOURCE_RTCTAMP1
  • LL_LPTIM_TRIG_SOURCE_RTCTAMP2
  • LL_LPTIM_TRIG_SOURCE_RTCTAMP3
  • LL_LPTIM_TRIG_SOURCE_COMP1
  • LL_LPTIM_TRIG_SOURCE_COMP2
FilterThis parameter can be one of the following values:

  • LL_LPTIM_TRIG_FILTER_NONE
  • LL_LPTIM_TRIG_FILTER_2
  • LL_LPTIM_TRIG_FILTER_4
  • LL_LPTIM_TRIG_FILTER_8
PolarityThis parameter can be one of the following values:

  • LL_LPTIM_TRIG_POLARITY_RISING
  • LL_LPTIM_TRIG_POLARITY_FALLING
  • LL_LPTIM_TRIG_POLARITY_RISING_FALLING
Return values:
None

Definition at line 690 of file stm32l4xx_ll_lptim.h.

__STATIC_INLINE void LL_LPTIM_DisableTimeout ( LPTIM_TypeDef *  LPTIMx )

Disable the timeout function.

Note:
This function must be called when the LPTIM instance is disabled.
A trigger event arriving when the timer is already started will be ignored. CFGR TIMOUT LL_LPTIM_DisableTimeout
Parameters:
LPTIMxLow-Power Timer instance
Return values:
None

Definition at line 633 of file stm32l4xx_ll_lptim.h.

__STATIC_INLINE void LL_LPTIM_EnableTimeout ( LPTIM_TypeDef *  LPTIMx )

Enable the timeout function.

Note:
This function must be called when the LPTIM instance is disabled.
The first trigger event will start the timer, any successive trigger event will reset the counter and the timer will restart.
The timeout value corresponds to the compare value; if no trigger occurs within the expected time frame, the MCU is waked-up by the compare match event. CFGR TIMOUT LL_LPTIM_EnableTimeout
Parameters:
LPTIMxLow-Power Timer instance
Return values:
None

Definition at line 619 of file stm32l4xx_ll_lptim.h.

__STATIC_INLINE uint32_t LL_LPTIM_GetTriggerFilter ( LPTIM_TypeDef *  LPTIMx )

Get actual external trigger filter.

CFGR TRGFLT LL_LPTIM_GetTriggerFilter

Parameters:
LPTIMxLow-Power Timer instance
Return values:
Returnedvalue can be one of the following values:

  • LL_LPTIM_TRIG_FILTER_NONE
  • LL_LPTIM_TRIG_FILTER_2
  • LL_LPTIM_TRIG_FILTER_4
  • LL_LPTIM_TRIG_FILTER_8

Definition at line 724 of file stm32l4xx_ll_lptim.h.

__STATIC_INLINE uint32_t LL_LPTIM_GetTriggerPolarity ( LPTIM_TypeDef *  LPTIMx )

Get actual external trigger polarity.

CFGR TRIGEN LL_LPTIM_GetTriggerPolarity

Parameters:
LPTIMxLow-Power Timer instance
Return values:
Returnedvalue can be one of the following values:

  • LL_LPTIM_TRIG_POLARITY_RISING
  • LL_LPTIM_TRIG_POLARITY_FALLING
  • LL_LPTIM_TRIG_POLARITY_RISING_FALLING

Definition at line 738 of file stm32l4xx_ll_lptim.h.

__STATIC_INLINE uint32_t LL_LPTIM_GetTriggerSource ( LPTIM_TypeDef *  LPTIMx )

Get actual external trigger source.

CFGR TRIGSEL LL_LPTIM_GetTriggerSource

Parameters:
LPTIMxLow-Power Timer instance
Return values:
Returnedvalue can be one of the following values:

  • LL_LPTIM_TRIG_SOURCE_GPIO
  • LL_LPTIM_TRIG_SOURCE_RTCALARMA
  • LL_LPTIM_TRIG_SOURCE_RTCALARMB
  • LL_LPTIM_TRIG_SOURCE_RTCTAMP1
  • LL_LPTIM_TRIG_SOURCE_RTCTAMP2
  • LL_LPTIM_TRIG_SOURCE_RTCTAMP3
  • LL_LPTIM_TRIG_SOURCE_COMP1
  • LL_LPTIM_TRIG_SOURCE_COMP2

Definition at line 709 of file stm32l4xx_ll_lptim.h.

__STATIC_INLINE uint32_t LL_LPTIM_IsEnabledTimeout ( LPTIM_TypeDef *  LPTIMx )

Indicate whether the timeout function is enabled.

CFGR TIMOUT LL_LPTIM_IsEnabledTimeout

Parameters:
LPTIMxLow-Power Timer instance
Return values:
Stateof bit (1 or 0).

Definition at line 644 of file stm32l4xx_ll_lptim.h.

__STATIC_INLINE void LL_LPTIM_TrigSw ( LPTIM_TypeDef *  LPTIMx )

Start the LPTIM counter.

Note:
This function must be called when the LPTIM instance is disabled. CFGR TRIGEN LL_LPTIM_TrigSw
Parameters:
LPTIMxLow-Power Timer instance
Return values:
None

Definition at line 656 of file stm32l4xx_ll_lptim.h.

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