HAL

LL_LPTIM_ConfigClock() is only used within HAL.

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SourceVuSTM32 Libraries and SamplesHALLL_LPTIM_ConfigClock()

LL_LPTIM_ConfigClock() function

Configure the active edge or edges used by the counter when the LPTIM is clocked by an external clock source.

Syntax

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Summary

Declaration

from stm32f4xx_ll_lptim.h:853

__STATIC_INLINE void LL_LPTIM_ConfigClock(LPTIM_TypeDef *LPTIMx, uint32_t ClockFilter, uint32_t ClockPolarity);

Arguments

Argument

Description

LPTIMx

Low-Power Timer instance

ClockFilter

This parameter can be one of the following values: @arg LL_LPTIM_CLK_FILTER_NONE @arg LL_LPTIM_CLK_FILTER_2 @arg LL_LPTIM_CLK_FILTER_4 @arg LL_LPTIM_CLK_FILTER_8

ClockPolarity

This parameter can be one of the following values: @arg LL_LPTIM_CLK_POLARITY_RISING @arg LL_LPTIM_CLK_POLARITY_FALLING @arg LL_LPTIM_CLK_POLARITY_RISING_FALLING

Return value

None

Notes

This function must be called when the LPTIM instance is disabled. When both external clock signal edges are considered active ones, the LPTIM must also be clocked by an internal clock source with a frequency equal to at least four times the external clock frequency. An internal clock source must be present when a digital filter is required for external clock. CFGR CKPOL LL_LPTIM_ConfigClock

Related Functions

Found 75 other functions taking a LPTIM_TypeDef argument:

Function

Description

LL_LPTIM_ClearFlag_ARRM()

Clear the autoreload match flag (ARRMCF)

LL_LPTIM_SetCounterMode()

Set the counter mode (selection of the LPTIM counter clock source).

LL_LPTIM_Enable()

Enable the LPTIM instance

LL_LPTIM_StartCounter()

Starts the LPTIM counter in the desired mode.

LL_LPTIM_SetAutoReload()

Set the auto reload value

LL_LPTIM_IsActiveFlag_ARRM()

Inform application whether a autoreload match interrupt has occurred.

LL_LPTIM_EnableIT_ARRM()

Enable autoreload match interrupt (ARRMIE).

LL_LPTIM_DeInit()

@endcond

LL_LPTIM_Init()

Configure the LPTIMx peripheral according to the specified parameters.

LL_LPTIM_IsEnabled()

Indicates whether the LPTIM instance is enabled.

LL_LPTIM_ClearFlag_CMPOK()

Clear the compare register update interrupt flag (CMPOKCF).

LL_LPTIM_IsActiveFlag_CMPOK()

Informs application whether the APB bus write operation to the LPTIMx_CMP register has been successfully completed. If so, a new one can be initiated.

LL_LPTIM_ClearFlag_ARROK()

Clear the autoreload register update interrupt flag (ARROKCF).

LL_LPTIM_IsActiveFlag_ARROK()

Informs application whether the APB bus write operation to the LPTIMx_ARR register has been successfully completed. If so, a new one can be initiated.

LL_LPTIM_Disable()

Disable the LPTIM instance

LL_LPTIM_SetInput1Src()

Set LPTIM input 1 source (default GPIO).

LL_LPTIM_EnableTimeout()

Enable the timeout function

LL_LPTIM_DisableTimeout()

Disable the timeout function

LL_LPTIM_IsEnabledTimeout()

Indicate whether the timeout function is enabled.

LL_LPTIM_TrigSw()

Start the LPTIM counter

LL_LPTIM_ConfigTrigger()

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

LL_LPTIM_GetAutoReload()

Get actual auto reload value

LL_LPTIM_SetCompare()

Set the compare value

LL_LPTIM_GetCompare()

Get actual compare value

LL_LPTIM_GetCounter()

Get actual counter value

LL_LPTIM_GetCounterMode()

Get the counter mode

LL_LPTIM_ConfigOutput()

Configure the LPTIM instance output (LPTIMx_OUT)

LL_LPTIM_GetTriggerSource()

Get actual external trigger source.

LL_LPTIM_GetTriggerFilter()

Get actual external trigger filter.

LL_LPTIM_GetTriggerPolarity()

Get actual external trigger polarity.

LL_LPTIM_SetClockSource()

Set the source of the clock used by the LPTIM instance.

LL_LPTIM_GetClockSource()

Get actual LPTIM instance clock source.

LL_LPTIM_GetClockPolarity()

Get actual clock polarity

LL_LPTIM_SetUpdateMode()

Set the LPTIM registers update mode (enable/disable register preload)

LL_LPTIM_GetUpdateMode()

Get the LPTIM registers update mode

LL_LPTIM_SetWaveform()

Set waveform shape

LL_LPTIM_GetWaveform()

Get actual waveform shape

LL_LPTIM_SetPolarity()

Set output polarity

LL_LPTIM_GetPolarity()

Get actual output polarity

LL_LPTIM_SetPrescaler()

Set actual prescaler division ratio.

LL_LPTIM_GetPrescaler()

Get actual prescaler division ratio.

LL_LPTIM_IsActiveFlag_CMPM()

Inform application whether a compare match interrupt has occurred.

LL_LPTIM_ClearFlag_EXTTRIG()

Clear the external trigger valid edge flag(EXTTRIGCF).

LL_LPTIM_IsActiveFlag_EXTTRIG()

Inform application whether a valid edge on the selected external trigger input has occurred.

LL_LPTIM_GetClockFilter()

Get actual clock digital filter

LL_LPTIM_SetEncoderMode()

Configure the encoder mode.

LL_LPTIM_GetEncoderMode()

Get actual encoder mode.

LL_LPTIM_EnableEncoderMode()

Enable the encoder mode

LL_LPTIM_DisableEncoderMode()

Disable the encoder mode

LL_LPTIM_IsEnabledEncoderMode()

Indicates whether the LPTIM operates in encoder mode.

LL_LPTIM_ClearFlag_CMPM()

Clear the compare match flag (CMPMCF)

LL_LPTIM_ClearFlag_UP()

Clear the counter direction change to up interrupt flag (UPCF).

LL_LPTIM_IsActiveFlag_UP()

Informs the application whether the counter direction has changed from down to up (when the LPTIM instance operates in encoder mode).

LL_LPTIM_ClearFlag_DOWN()

Clear the counter direction change to down interrupt flag (DOWNCF).

LL_LPTIM_IsActiveFlag_DOWN()

Informs the application whether the counter direction has changed from up to down (when the LPTIM instance operates in encoder mode).

LL_LPTIM_EnableIT_CMPM()

Enable compare match interrupt (CMPMIE).

LL_LPTIM_DisableIT_CMPM()

Disable compare match interrupt (CMPMIE).

LL_LPTIM_IsEnabledIT_CMPM()

Indicates whether the compare match interrupt (CMPMIE) is enabled.

LL_LPTIM_IsEnabledIT_CMPOK()

Indicates whether the compare register write completed interrupt (CMPOKIE) is enabled.

LL_LPTIM_EnableIT_ARROK()

Enable autoreload register write completed interrupt (ARROKIE).

LL_LPTIM_DisableIT_ARROK()

Disable autoreload register write completed interrupt (ARROKIE).

LL_LPTIM_IsEnabledIT_ARROK()

Indicates whether the autoreload register write completed interrupt (ARROKIE) is enabled.

LL_LPTIM_EnableIT_UP()

Enable direction change to up interrupt (UPIE).

LL_LPTIM_DisableIT_UP()

Disable direction change to up interrupt (UPIE).

LL_LPTIM_IsEnabledIT_UP()

Indicates whether the direction change to up interrupt (UPIE) is enabled.

LL_LPTIM_EnableIT_DOWN()

Enable direction change to down interrupt (DOWNIE).

LL_LPTIM_DisableIT_DOWN()

Disable direction change to down interrupt (DOWNIE).

LL_LPTIM_IsEnabledIT_DOWN()

Indicates whether the direction change to down interrupt (DOWNIE) is enabled.

LL_LPTIM_DisableIT_ARRM()

Disable autoreload match interrupt (ARRMIE).

LL_LPTIM_IsEnabledIT_ARRM()

Indicates whether the autoreload match interrupt (ARRMIE) is enabled.

LL_LPTIM_EnableIT_EXTTRIG()

Enable external trigger valid edge interrupt (EXTTRIGIE).

LL_LPTIM_DisableIT_EXTTRIG()

Disable external trigger valid edge interrupt (EXTTRIGIE).

LL_LPTIM_IsEnabledIT_EXTTRIG()

Indicates external trigger valid edge interrupt (EXTTRIGIE) is enabled.

LL_LPTIM_EnableIT_CMPOK()

Enable compare register write completed interrupt (CMPOKIE).

LL_LPTIM_DisableIT_CMPOK()

Disable compare register write completed interrupt (CMPOKIE).

Examples

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