Configuration

Functions
__STATIC_INLINE void	LL_CRS_EnableFreqErrorCounter (void)
	Enable Frequency error counter. More...
__STATIC_INLINE void	LL_CRS_DisableFreqErrorCounter (void)
	Disable Frequency error counter CR CEN LL_CRS_DisableFreqErrorCounter. More...
__STATIC_INLINE uint32_t	LL_CRS_IsEnabledFreqErrorCounter (void)
	Check if Frequency error counter is enabled or not CR CEN LL_CRS_IsEnabledFreqErrorCounter. More...
__STATIC_INLINE void	LL_CRS_EnableAutoTrimming (void)
	Enable Automatic trimming counter CR AUTOTRIMEN LL_CRS_EnableAutoTrimming. More...
__STATIC_INLINE void	LL_CRS_DisableAutoTrimming (void)
	Disable Automatic trimming counter CR AUTOTRIMEN LL_CRS_DisableAutoTrimming. More...
__STATIC_INLINE uint32_t	LL_CRS_IsEnabledAutoTrimming (void)
	Check if Automatic trimming is enabled or not CR AUTOTRIMEN LL_CRS_IsEnabledAutoTrimming. More...
__STATIC_INLINE void	LL_CRS_SetHSI48SmoothTrimming (uint32_t Value)
	Set HSI48 oscillator smooth trimming. More...
__STATIC_INLINE uint32_t	LL_CRS_GetHSI48SmoothTrimming (void)
	Get HSI48 oscillator smooth trimming CR TRIM LL_CRS_GetHSI48SmoothTrimming. More...
__STATIC_INLINE void	LL_CRS_SetReloadCounter (uint32_t Value)
	Set counter reload value CFGR RELOAD LL_CRS_SetReloadCounter. More...
__STATIC_INLINE uint32_t	LL_CRS_GetReloadCounter (void)
	Get counter reload value CFGR RELOAD LL_CRS_GetReloadCounter. More...
__STATIC_INLINE void	LL_CRS_SetFreqErrorLimit (uint32_t Value)
	Set frequency error limit CFGR FELIM LL_CRS_SetFreqErrorLimit. More...
__STATIC_INLINE uint32_t	LL_CRS_GetFreqErrorLimit (void)
	Get frequency error limit CFGR FELIM LL_CRS_GetFreqErrorLimit. More...
__STATIC_INLINE void	LL_CRS_SetSyncDivider (uint32_t Divider)
	Set division factor for SYNC signal CFGR SYNCDIV LL_CRS_SetSyncDivider. More...
__STATIC_INLINE uint32_t	LL_CRS_GetSyncDivider (void)
	Get division factor for SYNC signal CFGR SYNCDIV LL_CRS_GetSyncDivider. More...
__STATIC_INLINE void	LL_CRS_SetSyncSignalSource (uint32_t Source)
	Set SYNC signal source CFGR SYNCSRC LL_CRS_SetSyncSignalSource. More...
__STATIC_INLINE uint32_t	LL_CRS_GetSyncSignalSource (void)
	Get SYNC signal source CFGR SYNCSRC LL_CRS_GetSyncSignalSource. More...
__STATIC_INLINE void	LL_CRS_SetSyncPolarity (uint32_t Polarity)
	Set input polarity for the SYNC signal source CFGR SYNCPOL LL_CRS_SetSyncPolarity. More...
__STATIC_INLINE uint32_t	LL_CRS_GetSyncPolarity (void)
	Get input polarity for the SYNC signal source CFGR SYNCPOL LL_CRS_GetSyncPolarity. More...
__STATIC_INLINE void	LL_CRS_ConfigSynchronization (uint32_t HSI48CalibrationValue, uint32_t ErrorLimitValue, uint32_t ReloadValue, uint32_t Settings)
	Configure CRS for the synchronization CR TRIM LL_CRS_ConfigSynchronization CFGR RELOAD LL_CRS_ConfigSynchronization CFGR FELIM LL_CRS_ConfigSynchronization CFGR SYNCDIV LL_CRS_ConfigSynchronization CFGR SYNCSRC LL_CRS_ConfigSynchronization CFGR SYNCPOL LL_CRS_ConfigSynchronization. More...

Detailed Description

Function Documentation

LL_CRS_ConfigSynchronization()

__STATIC_INLINE void LL_CRS_ConfigSynchronization	(	uint32_t	HSI48CalibrationValue,
		uint32_t	ErrorLimitValue,
		uint32_t	ReloadValue,
		uint32_t	Settings
	)

Configure CRS for the synchronization CR TRIM LL_CRS_ConfigSynchronization
CFGR RELOAD LL_CRS_ConfigSynchronization
CFGR FELIM LL_CRS_ConfigSynchronization
CFGR SYNCDIV LL_CRS_ConfigSynchronization
CFGR SYNCSRC LL_CRS_ConfigSynchronization
CFGR SYNCPOL LL_CRS_ConfigSynchronization.

Parameters

HSI48CalibrationValue	a number between Min_Data = 0 and Max_Data = 63
ErrorLimitValue	a number between Min_Data = 0 and Max_Data = 0xFFFF
ReloadValue	a number between Min_Data = 0 and Max_Data = 255
Settings	This parameter can be a combination of the following values: LL_CRS_SYNC_DIV_1 or LL_CRS_SYNC_DIV_2 or LL_CRS_SYNC_DIV_4 or LL_CRS_SYNC_DIV_8 or LL_CRS_SYNC_DIV_16 or LL_CRS_SYNC_DIV_32 or LL_CRS_SYNC_DIV_64 or LL_CRS_SYNC_DIV_128 LL_CRS_SYNC_SOURCE_GPIO or LL_CRS_SYNC_SOURCE_LSE or LL_CRS_SYNC_SOURCE_USB LL_CRS_SYNC_POLARITY_RISING or LL_CRS_SYNC_POLARITY_FALLING

Return values

None

Definition at line 456 of file stm32l4xx_ll_crs.h.

{
  MODIFY_REG(CRS->CR, CRS_CR_TRIM, HSI48CalibrationValue);
  MODIFY_REG(CRS->CFGR,
             CRS_CFGR_RELOAD | CRS_CFGR_FELIM | CRS_CFGR_SYNCDIV | CRS_CFGR_SYNCSRC | CRS_CFGR_SYNCPOL,
             ReloadValue | (ErrorLimitValue << CRS_CFGR_FELIM_Pos) | Settings);
}

LL_CRS_DisableAutoTrimming()

__STATIC_INLINE void LL_CRS_DisableAutoTrimming

(

void

)

Disable Automatic trimming counter CR AUTOTRIMEN LL_CRS_DisableAutoTrimming.

Return values

None

Definition at line 266 of file stm32l4xx_ll_crs.h.

{
  CLEAR_BIT(CRS->CR, CRS_CR_AUTOTRIMEN);
}

LL_CRS_DisableFreqErrorCounter()

__STATIC_INLINE void LL_CRS_DisableFreqErrorCounter

(

void

)

Disable Frequency error counter CR CEN LL_CRS_DisableFreqErrorCounter.

Return values

None

Definition at line 236 of file stm32l4xx_ll_crs.h.

{
  CLEAR_BIT(CRS->CR, CRS_CR_CEN);
}

LL_CRS_EnableAutoTrimming()

__STATIC_INLINE void LL_CRS_EnableAutoTrimming

(

void

)

Enable Automatic trimming counter CR AUTOTRIMEN LL_CRS_EnableAutoTrimming.

Return values

None

Definition at line 256 of file stm32l4xx_ll_crs.h.

{
  SET_BIT(CRS->CR, CRS_CR_AUTOTRIMEN);
}

LL_CRS_EnableFreqErrorCounter()

__STATIC_INLINE void LL_CRS_EnableFreqErrorCounter

(

void

)

Enable Frequency error counter.

Note

When this bit is set, the CRS_CFGR register is write-protected and cannot be modified CR CEN LL_CRS_EnableFreqErrorCounter

Return values

None

Definition at line 226 of file stm32l4xx_ll_crs.h.

{
  SET_BIT(CRS->CR, CRS_CR_CEN);
}

LL_CRS_GetFreqErrorLimit()

__STATIC_INLINE uint32_t LL_CRS_GetFreqErrorLimit

(

void

)

Get frequency error limit CFGR FELIM LL_CRS_GetFreqErrorLimit.

Return values

A	number between Min_Data = 0 and Max_Data = 255

Definition at line 344 of file stm32l4xx_ll_crs.h.

{
  return (uint32_t)(READ_BIT(CRS->CFGR, CRS_CFGR_FELIM) >> CRS_CFGR_FELIM_Pos);
}

LL_CRS_GetHSI48SmoothTrimming()

__STATIC_INLINE uint32_t LL_CRS_GetHSI48SmoothTrimming

(

void

)

Get HSI48 oscillator smooth trimming CR TRIM LL_CRS_GetHSI48SmoothTrimming.

Return values

a	number between Min_Data = 0 and Max_Data = 127 for STM32L412xx/L422xx or 63 otherwise

Definition at line 299 of file stm32l4xx_ll_crs.h.

{
  return (uint32_t)(READ_BIT(CRS->CR, CRS_CR_TRIM) >> CRS_CR_TRIM_Pos);
}

LL_CRS_GetReloadCounter()

__STATIC_INLINE uint32_t LL_CRS_GetReloadCounter

(

void

)

Get counter reload value CFGR RELOAD LL_CRS_GetReloadCounter.

Return values

a	number between Min_Data = 0 and Max_Data = 0xFFFF

Definition at line 322 of file stm32l4xx_ll_crs.h.

{
  return (uint32_t)(READ_BIT(CRS->CFGR, CRS_CFGR_RELOAD));
}

LL_CRS_GetSyncDivider()

__STATIC_INLINE uint32_t LL_CRS_GetSyncDivider

(

void

)

Get division factor for SYNC signal CFGR SYNCDIV LL_CRS_GetSyncDivider.

Return values

Returned

value can be one of the following values: LL_CRS_SYNC_DIV_1 LL_CRS_SYNC_DIV_2 LL_CRS_SYNC_DIV_4 LL_CRS_SYNC_DIV_8 LL_CRS_SYNC_DIV_16 LL_CRS_SYNC_DIV_32 LL_CRS_SYNC_DIV_64 LL_CRS_SYNC_DIV_128

Definition at line 381 of file stm32l4xx_ll_crs.h.

{
  return (uint32_t)(READ_BIT(CRS->CFGR, CRS_CFGR_SYNCDIV));
}

LL_CRS_GetSyncPolarity()

__STATIC_INLINE uint32_t LL_CRS_GetSyncPolarity

(

void

)

Get input polarity for the SYNC signal source CFGR SYNCPOL LL_CRS_GetSyncPolarity.

Return values

Returned

value can be one of the following values: LL_CRS_SYNC_POLARITY_RISING LL_CRS_SYNC_POLARITY_FALLING

Definition at line 433 of file stm32l4xx_ll_crs.h.

{
  return (uint32_t)(READ_BIT(CRS->CFGR, CRS_CFGR_SYNCPOL));
}

LL_CRS_GetSyncSignalSource()

__STATIC_INLINE uint32_t LL_CRS_GetSyncSignalSource

(

void

)

Get SYNC signal source CFGR SYNCSRC LL_CRS_GetSyncSignalSource.

Return values

Returned

value can be one of the following values: LL_CRS_SYNC_SOURCE_GPIO LL_CRS_SYNC_SOURCE_LSE LL_CRS_SYNC_SOURCE_USB

Definition at line 408 of file stm32l4xx_ll_crs.h.

{
  return (uint32_t)(READ_BIT(CRS->CFGR, CRS_CFGR_SYNCSRC));
}

LL_CRS_IsEnabledAutoTrimming()

__STATIC_INLINE uint32_t LL_CRS_IsEnabledAutoTrimming

(

void

)

Check if Automatic trimming is enabled or not CR AUTOTRIMEN LL_CRS_IsEnabledAutoTrimming.

Return values

State

of bit (1 or 0).

Definition at line 276 of file stm32l4xx_ll_crs.h.

{
  return (READ_BIT(CRS->CR, CRS_CR_AUTOTRIMEN) == (CRS_CR_AUTOTRIMEN));
}

LL_CRS_IsEnabledFreqErrorCounter()

__STATIC_INLINE uint32_t LL_CRS_IsEnabledFreqErrorCounter

(

void

)

Check if Frequency error counter is enabled or not CR CEN LL_CRS_IsEnabledFreqErrorCounter.

Return values

State

of bit (1 or 0).

Definition at line 246 of file stm32l4xx_ll_crs.h.

{
  return (READ_BIT(CRS->CR, CRS_CR_CEN) == (CRS_CR_CEN));
}

LL_CRS_SetFreqErrorLimit()

__STATIC_INLINE void LL_CRS_SetFreqErrorLimit

(

uint32_t

Value

)

Set frequency error limit CFGR FELIM LL_CRS_SetFreqErrorLimit.

Parameters

Value

a number between Min_Data = 0 and Max_Data = 255

Note

Default value can be set thanks to LL_CRS_ERRORLIMIT_DEFAULT

Return values

None

Definition at line 334 of file stm32l4xx_ll_crs.h.

{
  MODIFY_REG(CRS->CFGR, CRS_CFGR_FELIM, Value << CRS_CFGR_FELIM_Pos);
}

LL_CRS_SetHSI48SmoothTrimming()

__STATIC_INLINE void LL_CRS_SetHSI48SmoothTrimming

(

uint32_t

Value

)

Set HSI48 oscillator smooth trimming.

Note

When the AUTOTRIMEN bit is set, this field is controlled by hardware and is read-only CR TRIM LL_CRS_SetHSI48SmoothTrimming

Parameters

Value

a number between Min_Data = 0 and Max_Data = 127 for STM32L412xx/L422xx or 63 otherwise

Note

Default value can be set thanks to LL_CRS_HSI48CALIBRATION_DEFAULT

Return values

None

Definition at line 289 of file stm32l4xx_ll_crs.h.

{
  MODIFY_REG(CRS->CR, CRS_CR_TRIM, Value << CRS_CR_TRIM_Pos);
}

LL_CRS_SetReloadCounter()

__STATIC_INLINE void LL_CRS_SetReloadCounter

(

uint32_t

Value

)

Set counter reload value CFGR RELOAD LL_CRS_SetReloadCounter.

Parameters

Value

a number between Min_Data = 0 and Max_Data = 0xFFFF

Note

Default value can be set thanks to LL_CRS_RELOADVALUE_DEFAULT Otherwise it can be calculated in using macro __LL_CRS_CALC_CALCULATE_RELOADVALUE (FTARGET, FSYNC)

Return values

None

Definition at line 312 of file stm32l4xx_ll_crs.h.

{
  MODIFY_REG(CRS->CFGR, CRS_CFGR_RELOAD, Value);
}

LL_CRS_SetSyncDivider()

__STATIC_INLINE void LL_CRS_SetSyncDivider

(

uint32_t

Divider

)

Set division factor for SYNC signal CFGR SYNCDIV LL_CRS_SetSyncDivider.

Parameters

Divider

This parameter can be one of the following values: LL_CRS_SYNC_DIV_1 LL_CRS_SYNC_DIV_2 LL_CRS_SYNC_DIV_4 LL_CRS_SYNC_DIV_8 LL_CRS_SYNC_DIV_16 LL_CRS_SYNC_DIV_32 LL_CRS_SYNC_DIV_64 LL_CRS_SYNC_DIV_128

Return values

None

Definition at line 363 of file stm32l4xx_ll_crs.h.

{
  MODIFY_REG(CRS->CFGR, CRS_CFGR_SYNCDIV, Divider);
}

LL_CRS_SetSyncPolarity()

__STATIC_INLINE void LL_CRS_SetSyncPolarity

(

uint32_t

Polarity

)

Set input polarity for the SYNC signal source CFGR SYNCPOL LL_CRS_SetSyncPolarity.

Parameters

Polarity

This parameter can be one of the following values: LL_CRS_SYNC_POLARITY_RISING LL_CRS_SYNC_POLARITY_FALLING

Return values

None

Definition at line 421 of file stm32l4xx_ll_crs.h.

{
  MODIFY_REG(CRS->CFGR, CRS_CFGR_SYNCPOL, Polarity);
}

LL_CRS_SetSyncSignalSource()

__STATIC_INLINE void LL_CRS_SetSyncSignalSource

(

uint32_t

Source

)

Set SYNC signal source CFGR SYNCSRC LL_CRS_SetSyncSignalSource.

Parameters

Source

This parameter can be one of the following values: LL_CRS_SYNC_SOURCE_GPIO LL_CRS_SYNC_SOURCE_LSE LL_CRS_SYNC_SOURCE_USB

Return values

None

Definition at line 395 of file stm32l4xx_ll_crs.h.

{
  MODIFY_REG(CRS->CFGR, CRS_CFGR_SYNCSRC, Source);
}