Configuration of DAC instance

Functions
__STATIC_INLINE void	LL_DAC_SetHighFrequencyMode (DAC_TypeDef *DACx, uint32_t HighFreqMode)
	Set the high frequency interface mode for the selected DAC instance CR HFSEL LL_DAC_SetHighFrequencyMode. More...
__STATIC_INLINE uint32_t	LL_DAC_GetHighFrequencyMode (DAC_TypeDef *DACx)
	Get the high frequency interface mode for the selected DAC instance CR HFSEL LL_DAC_GetHighFrequencyMode. More...
__STATIC_INLINE void	LL_DAC_SetMode (DAC_TypeDef *DACx, uint32_t DAC_Channel, uint32_t ChannelMode)
	Set the operating mode for the selected DAC channel: calibration or normal operating mode. CR CEN1 LL_DAC_SetMode CR CEN2 LL_DAC_SetMode. More...
__STATIC_INLINE uint32_t	LL_DAC_GetMode (DAC_TypeDef *DACx, uint32_t DAC_Channel)
	Get the operating mode for the selected DAC channel: calibration or normal operating mode. CR CEN1 LL_DAC_GetMode CR CEN2 LL_DAC_GetMode. More...
__STATIC_INLINE void	LL_DAC_SetTrimmingValue (DAC_TypeDef *DACx, uint32_t DAC_Channel, uint32_t TrimmingValue)
	Set the offset trimming value for the selected DAC channel. Trimming has an impact when output buffer is enabled and is intended to replace factory calibration default values. CCR OTRIM1 LL_DAC_SetTrimmingValue CCR OTRIM2 LL_DAC_SetTrimmingValue. More...
__STATIC_INLINE uint32_t	LL_DAC_GetTrimmingValue (DAC_TypeDef *DACx, uint32_t DAC_Channel)
	Get the offset trimming value for the selected DAC channel. Trimming has an impact when output buffer is enabled and is intended to replace factory calibration default values. CCR OTRIM1 LL_DAC_GetTrimmingValue CCR OTRIM2 LL_DAC_GetTrimmingValue. More...
__STATIC_INLINE void	LL_DAC_SetTriggerSource (DAC_TypeDef *DACx, uint32_t DAC_Channel, uint32_t TriggerSource)
	Set the conversion trigger source for the selected DAC channel. More...
__STATIC_INLINE uint32_t	LL_DAC_GetTriggerSource (DAC_TypeDef *DACx, uint32_t DAC_Channel)
	Get the conversion trigger source for the selected DAC channel. More...
__STATIC_INLINE void	LL_DAC_SetWaveAutoGeneration (DAC_TypeDef *DACx, uint32_t DAC_Channel, uint32_t WaveAutoGeneration)
	Set the waveform automatic generation mode for the selected DAC channel. CR WAVE1 LL_DAC_SetWaveAutoGeneration CR WAVE2 LL_DAC_SetWaveAutoGeneration. More...
__STATIC_INLINE uint32_t	LL_DAC_GetWaveAutoGeneration (DAC_TypeDef *DACx, uint32_t DAC_Channel)
	Get the waveform automatic generation mode for the selected DAC channel. CR WAVE1 LL_DAC_GetWaveAutoGeneration CR WAVE2 LL_DAC_GetWaveAutoGeneration. More...
__STATIC_INLINE void	LL_DAC_SetWaveNoiseLFSR (DAC_TypeDef *DACx, uint32_t DAC_Channel, uint32_t NoiseLFSRMask)
	Set the noise waveform generation for the selected DAC channel: Noise mode and parameters LFSR (linear feedback shift register). More...
__STATIC_INLINE uint32_t	LL_DAC_GetWaveNoiseLFSR (DAC_TypeDef *DACx, uint32_t DAC_Channel)
	Get the noise waveform generation for the selected DAC channel: Noise mode and parameters LFSR (linear feedback shift register). CR MAMP1 LL_DAC_GetWaveNoiseLFSR CR MAMP2 LL_DAC_GetWaveNoiseLFSR. More...
__STATIC_INLINE void	LL_DAC_SetWaveTriangleAmplitude (DAC_TypeDef *DACx, uint32_t DAC_Channel, uint32_t TriangleAmplitude)
	Set the triangle waveform generation for the selected DAC channel: triangle mode and amplitude. More...
__STATIC_INLINE uint32_t	LL_DAC_GetWaveTriangleAmplitude (DAC_TypeDef *DACx, uint32_t DAC_Channel)
	Get the triangle waveform generation for the selected DAC channel: triangle mode and amplitude. CR MAMP1 LL_DAC_GetWaveTriangleAmplitude CR MAMP2 LL_DAC_GetWaveTriangleAmplitude. More...
__STATIC_INLINE void	LL_DAC_ConfigOutput (DAC_TypeDef *DACx, uint32_t DAC_Channel, uint32_t OutputMode, uint32_t OutputBuffer, uint32_t OutputConnection)
	Set the output for the selected DAC channel. More...
__STATIC_INLINE void	LL_DAC_SetOutputMode (DAC_TypeDef *DACx, uint32_t DAC_Channel, uint32_t OutputMode)
	Set the output mode normal or sample-and-hold for the selected DAC channel. More...
__STATIC_INLINE uint32_t	LL_DAC_GetOutputMode (DAC_TypeDef *DACx, uint32_t DAC_Channel)
	Get the output mode normal or sample-and-hold for the selected DAC channel. CR MODE1 LL_DAC_GetOutputMode CR MODE2 LL_DAC_GetOutputMode. More...
__STATIC_INLINE void	LL_DAC_SetOutputBuffer (DAC_TypeDef *DACx, uint32_t DAC_Channel, uint32_t OutputBuffer)
	Set the output buffer for the selected DAC channel. More...
__STATIC_INLINE uint32_t	LL_DAC_GetOutputBuffer (DAC_TypeDef *DACx, uint32_t DAC_Channel)
	Get the output buffer state for the selected DAC channel. CR MODE1 LL_DAC_GetOutputBuffer CR MODE2 LL_DAC_GetOutputBuffer. More...
__STATIC_INLINE void	LL_DAC_SetOutputConnection (DAC_TypeDef *DACx, uint32_t DAC_Channel, uint32_t OutputConnection)
	Set the output connection for the selected DAC channel. More...
__STATIC_INLINE uint32_t	LL_DAC_GetOutputConnection (DAC_TypeDef *DACx, uint32_t DAC_Channel)
	Get the output connection for the selected DAC channel. More...
__STATIC_INLINE void	LL_DAC_SetSampleAndHoldSampleTime (DAC_TypeDef *DACx, uint32_t DAC_Channel, uint32_t SampleTime)
	Set the sample-and-hold timing for the selected DAC channel: sample time. More...
__STATIC_INLINE uint32_t	LL_DAC_GetSampleAndHoldSampleTime (DAC_TypeDef *DACx, uint32_t DAC_Channel)
	Get the sample-and-hold timing for the selected DAC channel: sample time SHSR1 TSAMPLE1 LL_DAC_GetSampleAndHoldSampleTime SHSR2 TSAMPLE2 LL_DAC_GetSampleAndHoldSampleTime. More...
__STATIC_INLINE void	LL_DAC_SetSampleAndHoldHoldTime (DAC_TypeDef *DACx, uint32_t DAC_Channel, uint32_t HoldTime)
	Set the sample-and-hold timing for the selected DAC channel: hold time SHHR THOLD1 LL_DAC_SetSampleAndHoldHoldTime SHHR THOLD2 LL_DAC_SetSampleAndHoldHoldTime. More...
__STATIC_INLINE uint32_t	LL_DAC_GetSampleAndHoldHoldTime (DAC_TypeDef *DACx, uint32_t DAC_Channel)
	Get the sample-and-hold timing for the selected DAC channel: hold time SHHR THOLD1 LL_DAC_GetSampleAndHoldHoldTime SHHR THOLD2 LL_DAC_GetSampleAndHoldHoldTime. More...
__STATIC_INLINE void	LL_DAC_SetSampleAndHoldRefreshTime (DAC_TypeDef *DACx, uint32_t DAC_Channel, uint32_t RefreshTime)
	Set the sample-and-hold timing for the selected DAC channel: refresh time SHRR TREFRESH1 LL_DAC_SetSampleAndHoldRefreshTime SHRR TREFRESH2 LL_DAC_SetSampleAndHoldRefreshTime. More...
__STATIC_INLINE uint32_t	LL_DAC_GetSampleAndHoldRefreshTime (DAC_TypeDef *DACx, uint32_t DAC_Channel)
	Get the sample-and-hold timing for the selected DAC channel: refresh time SHRR TREFRESH1 LL_DAC_GetSampleAndHoldRefreshTime SHRR TREFRESH2 LL_DAC_GetSampleAndHoldRefreshTime. More...

Detailed Description

Function Documentation

LL_DAC_ConfigOutput()

__STATIC_INLINE void LL_DAC_ConfigOutput	(	DAC_TypeDef *	DACx,
		uint32_t	DAC_Channel,
		uint32_t	OutputMode,
		uint32_t	OutputBuffer,
		uint32_t	OutputConnection
	)

Set the output for the selected DAC channel.

Note

This function set several features:

• mode normal or sample-and-hold
• buffer
• connection to GPIO or internal path. These features can also be set individually using dedicated functions:
• LL_DAC_SetOutputBuffer()
• LL_DAC_SetOutputMode()
• LL_DAC_SetOutputConnection()

On this STM32 serie, output connection depends on output mode (normal or sample and hold) and output buffer state.

• if output connection is set to internal path and output buffer is enabled (whatever output mode): output connection is also connected to GPIO pin (both connections to GPIO pin and internal path).
• if output connection is set to GPIO pin, output buffer is disabled, output mode set to sample and hold: output connection is also connected to internal path (both connections to GPIO pin and internal path).

Mode sample-and-hold requires an external capacitor to be connected between DAC channel output and ground. Capacitor value depends on load on DAC channel output and sample-and-hold timings configured. As indication, capacitor typical value is 100nF (refer to device datasheet, parameter "CSH"). CR MODE1 LL_DAC_ConfigOutput
CR MODE2 LL_DAC_ConfigOutput

Parameters

DACx	DAC instance
DAC_Channel	This parameter can be one of the following values: LL_DAC_CHANNEL_1 LL_DAC_CHANNEL_2 (1) (1) On this STM32 serie, parameter not available on all devices. Refer to device datasheet for channels availability.
OutputMode	This parameter can be one of the following values: LL_DAC_OUTPUT_MODE_NORMAL LL_DAC_OUTPUT_MODE_SAMPLE_AND_HOLD
OutputBuffer	This parameter can be one of the following values: LL_DAC_OUTPUT_BUFFER_ENABLE LL_DAC_OUTPUT_BUFFER_DISABLE
OutputConnection	This parameter can be one of the following values: LL_DAC_OUTPUT_CONNECT_GPIO LL_DAC_OUTPUT_CONNECT_INTERNAL

Return values

None

Definition at line 1013 of file stm32l4xx_ll_dac.h.

{
  MODIFY_REG(DACx->MCR,
             (DAC_MCR_MODE1_2 | DAC_MCR_MODE1_1 | DAC_MCR_MODE1_0) << (DAC_Channel & DAC_CR_CHX_BITOFFSET_MASK),
             (OutputMode | OutputBuffer | OutputConnection) << (DAC_Channel & DAC_CR_CHX_BITOFFSET_MASK));
}

LL_DAC_GetHighFrequencyMode()

__STATIC_INLINE uint32_t LL_DAC_GetHighFrequencyMode

(

DAC_TypeDef *

DACx

)

Get the high frequency interface mode for the selected DAC instance CR HFSEL LL_DAC_GetHighFrequencyMode.

Parameters

DACx	DAC instance

Return values

Returned

value can be one of the following values: LL_DAC_HIGH_FREQ_MODE_DISABLE LL_DAC_HIGH_FREQ_MODE_ABOVE_80MHZ

Definition at line 606 of file stm32l4xx_ll_dac.h.

{
  return (uint32_t)(READ_BIT(DACx->CR, DAC_CR_HFSEL));
}

LL_DAC_GetMode()

__STATIC_INLINE uint32_t LL_DAC_GetMode	(	DAC_TypeDef *	DACx,
		uint32_t	DAC_Channel
	)

Get the operating mode for the selected DAC channel: calibration or normal operating mode. CR CEN1 LL_DAC_GetMode
CR CEN2 LL_DAC_GetMode.

Parameters

DACx	DAC instance
DAC_Channel	This parameter can be one of the following values: LL_DAC_CHANNEL_1 LL_DAC_CHANNEL_2

Return values

Returned

value can be one of the following values: LL_DAC_MODE_NORMAL_OPERATION LL_DAC_MODE_CALIBRATION

Definition at line 654 of file stm32l4xx_ll_dac.h.

{
  return (uint32_t)(READ_BIT(DACx->CR, DAC_CR_CEN1 << (DAC_Channel & DAC_CR_CHX_BITOFFSET_MASK))
                    >> (DAC_Channel & DAC_CR_CHX_BITOFFSET_MASK)
                   );
}

LL_DAC_GetOutputBuffer()

__STATIC_INLINE uint32_t LL_DAC_GetOutputBuffer	(	DAC_TypeDef *	DACx,
		uint32_t	DAC_Channel
	)

Get the output buffer state for the selected DAC channel. CR MODE1 LL_DAC_GetOutputBuffer
CR MODE2 LL_DAC_GetOutputBuffer.

Parameters

DACx	DAC instance
DAC_Channel	This parameter can be one of the following values: LL_DAC_CHANNEL_1 LL_DAC_CHANNEL_2 (1) (1) On this STM32 serie, parameter not available on all devices. Refer to device datasheet for channels availability.

Return values

Returned

value can be one of the following values: LL_DAC_OUTPUT_BUFFER_ENABLE LL_DAC_OUTPUT_BUFFER_DISABLE

Definition at line 1115 of file stm32l4xx_ll_dac.h.

{
  return (uint32_t)(READ_BIT(DACx->MCR, (uint32_t)DAC_MCR_MODE1_1 << (DAC_Channel & DAC_CR_CHX_BITOFFSET_MASK))
                    >> (DAC_Channel & DAC_CR_CHX_BITOFFSET_MASK)
                   );
}

LL_DAC_GetOutputConnection()

__STATIC_INLINE uint32_t LL_DAC_GetOutputConnection	(	DAC_TypeDef *	DACx,
		uint32_t	DAC_Channel
	)

Get the output connection for the selected DAC channel.

Note

On this STM32 serie, output connection depends on output mode (normal or sample and hold) and output buffer state.

• if output connection is set to internal path and output buffer is enabled (whatever output mode): output connection is also connected to GPIO pin (both connections to GPIO pin and internal path).
• if output connection is set to GPIO pin, output buffer is disabled, output mode set to sample and hold: output connection is also connected to internal path (both connections to GPIO pin and internal path). CR MODE1 LL_DAC_GetOutputConnection
  CR MODE2 LL_DAC_GetOutputConnection

Parameters

DACx	DAC instance
DAC_Channel	This parameter can be one of the following values: LL_DAC_CHANNEL_1 LL_DAC_CHANNEL_2 (1) (1) On this STM32 serie, parameter not available on all devices. Refer to device datasheet for channels availability.

Return values

Returned

value can be one of the following values: LL_DAC_OUTPUT_CONNECT_GPIO LL_DAC_OUTPUT_CONNECT_INTERNAL

Definition at line 1180 of file stm32l4xx_ll_dac.h.

{
  return (uint32_t)(READ_BIT(DACx->MCR, (uint32_t)DAC_MCR_MODE1_0 << (DAC_Channel & DAC_CR_CHX_BITOFFSET_MASK))
                    >> (DAC_Channel & DAC_CR_CHX_BITOFFSET_MASK)
                   );
}

LL_DAC_GetOutputMode()

__STATIC_INLINE uint32_t LL_DAC_GetOutputMode	(	DAC_TypeDef *	DACx,
		uint32_t	DAC_Channel
	)

Get the output mode normal or sample-and-hold for the selected DAC channel. CR MODE1 LL_DAC_GetOutputMode
CR MODE2 LL_DAC_GetOutputMode.

Parameters

DACx	DAC instance
DAC_Channel	This parameter can be one of the following values: LL_DAC_CHANNEL_1 LL_DAC_CHANNEL_2 (1) (1) On this STM32 serie, parameter not available on all devices. Refer to device datasheet for channels availability.

Return values

Returned

value can be one of the following values: LL_DAC_OUTPUT_MODE_NORMAL LL_DAC_OUTPUT_MODE_SAMPLE_AND_HOLD

Definition at line 1066 of file stm32l4xx_ll_dac.h.

{
  return (uint32_t)(READ_BIT(DACx->MCR, (uint32_t)DAC_MCR_MODE1_2 << (DAC_Channel & DAC_CR_CHX_BITOFFSET_MASK))
                    >> (DAC_Channel & DAC_CR_CHX_BITOFFSET_MASK)
                   );
}

LL_DAC_GetSampleAndHoldHoldTime()

__STATIC_INLINE uint32_t LL_DAC_GetSampleAndHoldHoldTime	(	DAC_TypeDef *	DACx,
		uint32_t	DAC_Channel
	)

Get the sample-and-hold timing for the selected DAC channel: hold time SHHR THOLD1 LL_DAC_GetSampleAndHoldHoldTime
SHHR THOLD2 LL_DAC_GetSampleAndHoldHoldTime.

Parameters

DACx	DAC instance
DAC_Channel	This parameter can be one of the following values: LL_DAC_CHANNEL_1 LL_DAC_CHANNEL_2 (1) (1) On this STM32 serie, parameter not available on all devices. Refer to device datasheet for channels availability.

Return values

Value

between Min_Data=0x000 and Max_Data=0x3FF

Definition at line 1272 of file stm32l4xx_ll_dac.h.

{
  return (uint32_t)(READ_BIT(DACx->SHHR, DAC_SHHR_THOLD1 << (DAC_Channel & DAC_CR_CHX_BITOFFSET_MASK))
                    >> (DAC_Channel & DAC_CR_CHX_BITOFFSET_MASK)
                   );
}

LL_DAC_GetSampleAndHoldRefreshTime()

__STATIC_INLINE uint32_t LL_DAC_GetSampleAndHoldRefreshTime	(	DAC_TypeDef *	DACx,
		uint32_t	DAC_Channel
	)

Get the sample-and-hold timing for the selected DAC channel: refresh time SHRR TREFRESH1 LL_DAC_GetSampleAndHoldRefreshTime
SHRR TREFRESH2 LL_DAC_GetSampleAndHoldRefreshTime.

Parameters

DACx	DAC instance
DAC_Channel	This parameter can be one of the following values: LL_DAC_CHANNEL_1 LL_DAC_CHANNEL_2 (1) (1) On this STM32 serie, parameter not available on all devices. Refer to device datasheet for channels availability.

Return values

Value

between Min_Data=0x00 and Max_Data=0xFF

Definition at line 1315 of file stm32l4xx_ll_dac.h.

{
  return (uint32_t)(READ_BIT(DACx->SHRR, DAC_SHRR_TREFRESH1 << (DAC_Channel & DAC_CR_CHX_BITOFFSET_MASK))
                    >> (DAC_Channel & DAC_CR_CHX_BITOFFSET_MASK)
                   );
}

LL_DAC_GetSampleAndHoldSampleTime()

__STATIC_INLINE uint32_t LL_DAC_GetSampleAndHoldSampleTime	(	DAC_TypeDef *	DACx,
		uint32_t	DAC_Channel
	)

Get the sample-and-hold timing for the selected DAC channel: sample time SHSR1 TSAMPLE1 LL_DAC_GetSampleAndHoldSampleTime
SHSR2 TSAMPLE2 LL_DAC_GetSampleAndHoldSampleTime.

Parameters

DACx	DAC instance
DAC_Channel	This parameter can be one of the following values: LL_DAC_CHANNEL_1 LL_DAC_CHANNEL_2 (1) (1) On this STM32 serie, parameter not available on all devices. Refer to device datasheet for channels availability.

Return values

Value

between Min_Data=0x000 and Max_Data=0x3FF

Definition at line 1229 of file stm32l4xx_ll_dac.h.

{
  __IO uint32_t const *preg = __DAC_PTR_REG_OFFSET(DACx->SHSR1, (DAC_Channel >> DAC_REG_SHSRX_REGOFFSET_BITOFFSET_POS) & DAC_REG_SHSRX_REGOFFSET_MASK_POSBIT0);

  return (uint32_t) READ_BIT(*preg, DAC_SHSR1_TSAMPLE1);
}

LL_DAC_GetTriggerSource()

__STATIC_INLINE uint32_t LL_DAC_GetTriggerSource	(	DAC_TypeDef *	DACx,
		uint32_t	DAC_Channel
	)

Get the conversion trigger source for the selected DAC channel.

Note

For conversion trigger source to be effective, DAC trigger must be enabled using function LL_DAC_EnableTrigger().

Availability of parameters of trigger sources from timer depends on timers availability on the selected device. CR TSEL1 LL_DAC_GetTriggerSource
CR TSEL2 LL_DAC_GetTriggerSource

Parameters

DACx	DAC instance
DAC_Channel	This parameter can be one of the following values: LL_DAC_CHANNEL_1 LL_DAC_CHANNEL_2 (1) (1) On this STM32 serie, parameter not available on all devices. Refer to device datasheet for channels availability.

Return values

Returned

value can be one of the following values: LL_DAC_TRIG_SOFTWARE LL_DAC_TRIG_EXT_TIM1_TRGO LL_DAC_TRIG_EXT_TIM2_TRGO LL_DAC_TRIG_EXT_TIM4_TRGO LL_DAC_TRIG_EXT_TIM5_TRGO LL_DAC_TRIG_EXT_TIM6_TRGO LL_DAC_TRIG_EXT_TIM7_TRGO LL_DAC_TRIG_EXT_TIM8_TRGO LL_DAC_TRIG_EXT_TIM15_TRGO LL_DAC_TRIG_EXT_LPTIM1_OUT LL_DAC_TRIG_EXT_LPTIM2_OUT LL_DAC_TRIG_EXT_EXTI_LINE9

Definition at line 765 of file stm32l4xx_ll_dac.h.

{
  return (uint32_t)(READ_BIT(DACx->CR, DAC_CR_TSEL1 << (DAC_Channel & DAC_CR_CHX_BITOFFSET_MASK))
                    >> (DAC_Channel & DAC_CR_CHX_BITOFFSET_MASK)
                   );
}

LL_DAC_GetTrimmingValue()

__STATIC_INLINE uint32_t LL_DAC_GetTrimmingValue	(	DAC_TypeDef *	DACx,
		uint32_t	DAC_Channel
	)

Get the offset trimming value for the selected DAC channel. Trimming has an impact when output buffer is enabled and is intended to replace factory calibration default values. CCR OTRIM1 LL_DAC_GetTrimmingValue
CCR OTRIM2 LL_DAC_GetTrimmingValue.

Parameters

DACx	DAC instance
DAC_Channel	This parameter can be one of the following values: LL_DAC_CHANNEL_1 LL_DAC_CHANNEL_2

Return values

TrimmingValue

Value between Min_Data=0x00 and Max_Data=0x1F

Definition at line 693 of file stm32l4xx_ll_dac.h.

{
  return (uint32_t)(READ_BIT(DACx->CCR, DAC_CCR_OTRIM1 << (DAC_Channel & DAC_CR_CHX_BITOFFSET_MASK))
                    >> (DAC_Channel & DAC_CR_CHX_BITOFFSET_MASK)
                   );
}

LL_DAC_GetWaveAutoGeneration()

__STATIC_INLINE uint32_t LL_DAC_GetWaveAutoGeneration	(	DAC_TypeDef *	DACx,
		uint32_t	DAC_Channel
	)

Get the waveform automatic generation mode for the selected DAC channel. CR WAVE1 LL_DAC_GetWaveAutoGeneration
CR WAVE2 LL_DAC_GetWaveAutoGeneration.

Parameters

DACx	DAC instance
DAC_Channel	This parameter can be one of the following values: LL_DAC_CHANNEL_1 LL_DAC_CHANNEL_2 (1) (1) On this STM32 serie, parameter not available on all devices. Refer to device datasheet for channels availability.

Return values

Returned

value can be one of the following values: LL_DAC_WAVE_AUTO_GENERATION_NONE LL_DAC_WAVE_AUTO_GENERATION_NOISE LL_DAC_WAVE_AUTO_GENERATION_TRIANGLE

Definition at line 814 of file stm32l4xx_ll_dac.h.

{
  return (uint32_t)(READ_BIT(DACx->CR, DAC_CR_WAVE1 << (DAC_Channel & DAC_CR_CHX_BITOFFSET_MASK))
                    >> (DAC_Channel & DAC_CR_CHX_BITOFFSET_MASK)
                   );
}

LL_DAC_GetWaveNoiseLFSR()

__STATIC_INLINE uint32_t LL_DAC_GetWaveNoiseLFSR	(	DAC_TypeDef *	DACx,
		uint32_t	DAC_Channel
	)

Get the noise waveform generation for the selected DAC channel: Noise mode and parameters LFSR (linear feedback shift register). CR MAMP1 LL_DAC_GetWaveNoiseLFSR
CR MAMP2 LL_DAC_GetWaveNoiseLFSR.

Parameters

DACx	DAC instance
DAC_Channel	This parameter can be one of the following values: LL_DAC_CHANNEL_1 LL_DAC_CHANNEL_2 (1) (1) On this STM32 serie, parameter not available on all devices. Refer to device datasheet for channels availability.

Return values

Returned

value can be one of the following values: LL_DAC_NOISE_LFSR_UNMASK_BIT0 LL_DAC_NOISE_LFSR_UNMASK_BITS1_0 LL_DAC_NOISE_LFSR_UNMASK_BITS2_0 LL_DAC_NOISE_LFSR_UNMASK_BITS3_0 LL_DAC_NOISE_LFSR_UNMASK_BITS4_0 LL_DAC_NOISE_LFSR_UNMASK_BITS5_0 LL_DAC_NOISE_LFSR_UNMASK_BITS6_0 LL_DAC_NOISE_LFSR_UNMASK_BITS7_0 LL_DAC_NOISE_LFSR_UNMASK_BITS8_0 LL_DAC_NOISE_LFSR_UNMASK_BITS9_0 LL_DAC_NOISE_LFSR_UNMASK_BITS10_0 LL_DAC_NOISE_LFSR_UNMASK_BITS11_0

Definition at line 886 of file stm32l4xx_ll_dac.h.

{
  return (uint32_t)(READ_BIT(DACx->CR, DAC_CR_MAMP1 << (DAC_Channel & DAC_CR_CHX_BITOFFSET_MASK))
                    >> (DAC_Channel & DAC_CR_CHX_BITOFFSET_MASK)
                   );
}

LL_DAC_GetWaveTriangleAmplitude()

__STATIC_INLINE uint32_t LL_DAC_GetWaveTriangleAmplitude	(	DAC_TypeDef *	DACx,
		uint32_t	DAC_Channel
	)

Get the triangle waveform generation for the selected DAC channel: triangle mode and amplitude. CR MAMP1 LL_DAC_GetWaveTriangleAmplitude
CR MAMP2 LL_DAC_GetWaveTriangleAmplitude.

Parameters

DACx	DAC instance
DAC_Channel	This parameter can be one of the following values: LL_DAC_CHANNEL_1 LL_DAC_CHANNEL_2 (1) (1) On this STM32 serie, parameter not available on all devices. Refer to device datasheet for channels availability.

Return values

Returned

value can be one of the following values: LL_DAC_TRIANGLE_AMPLITUDE_1 LL_DAC_TRIANGLE_AMPLITUDE_3 LL_DAC_TRIANGLE_AMPLITUDE_7 LL_DAC_TRIANGLE_AMPLITUDE_15 LL_DAC_TRIANGLE_AMPLITUDE_31 LL_DAC_TRIANGLE_AMPLITUDE_63 LL_DAC_TRIANGLE_AMPLITUDE_127 LL_DAC_TRIANGLE_AMPLITUDE_255 LL_DAC_TRIANGLE_AMPLITUDE_511 LL_DAC_TRIANGLE_AMPLITUDE_1023 LL_DAC_TRIANGLE_AMPLITUDE_2047 LL_DAC_TRIANGLE_AMPLITUDE_4095

Definition at line 959 of file stm32l4xx_ll_dac.h.

{
  return (uint32_t)(READ_BIT(DACx->CR, DAC_CR_MAMP1 << (DAC_Channel & DAC_CR_CHX_BITOFFSET_MASK))
                    >> (DAC_Channel & DAC_CR_CHX_BITOFFSET_MASK)
                   );
}

LL_DAC_SetHighFrequencyMode()

__STATIC_INLINE void LL_DAC_SetHighFrequencyMode	(	DAC_TypeDef *	DACx,
		uint32_t	HighFreqMode
	)

Set the high frequency interface mode for the selected DAC instance CR HFSEL LL_DAC_SetHighFrequencyMode.

Parameters

DACx	DAC instance
HighFreqMode	This parameter can be one of the following values: LL_DAC_HIGH_FREQ_MODE_DISABLE LL_DAC_HIGH_FREQ_MODE_ABOVE_80MHZ

Return values

None

Definition at line 593 of file stm32l4xx_ll_dac.h.

{
  MODIFY_REG(DACx->CR, DAC_CR_HFSEL, HighFreqMode);
}

LL_DAC_SetMode()

__STATIC_INLINE void LL_DAC_SetMode	(	DAC_TypeDef *	DACx,
		uint32_t	DAC_Channel,
		uint32_t	ChannelMode
	)

Set the operating mode for the selected DAC channel: calibration or normal operating mode. CR CEN1 LL_DAC_SetMode
CR CEN2 LL_DAC_SetMode.

Parameters

DACx	DAC instance
DAC_Channel	This parameter can be one of the following values: LL_DAC_CHANNEL_1 LL_DAC_CHANNEL_2
ChannelMode	This parameter can be one of the following values: LL_DAC_MODE_NORMAL_OPERATION LL_DAC_MODE_CALIBRATION

Return values

None

Definition at line 634 of file stm32l4xx_ll_dac.h.

{
  MODIFY_REG(DACx->CR,
             DAC_CR_CEN1 << (DAC_Channel & DAC_CR_CHX_BITOFFSET_MASK),
             ChannelMode << (DAC_Channel & DAC_CR_CHX_BITOFFSET_MASK));
}

LL_DAC_SetOutputBuffer()

__STATIC_INLINE void LL_DAC_SetOutputBuffer	(	DAC_TypeDef *	DACx,
		uint32_t	DAC_Channel,
		uint32_t	OutputBuffer
	)

Set the output buffer for the selected DAC channel.

Note

On this STM32 serie, when buffer is enabled, its offset can be trimmed: factory calibration default values can be replaced by user trimming values, using function LL_DAC_SetTrimmingValue(). CR MODE1 LL_DAC_SetOutputBuffer
CR MODE2 LL_DAC_SetOutputBuffer

Parameters

DACx	DAC instance
DAC_Channel	This parameter can be one of the following values: LL_DAC_CHANNEL_1 LL_DAC_CHANNEL_2 (1) (1) On this STM32 serie, parameter not available on all devices. Refer to device datasheet for channels availability.
OutputBuffer	This parameter can be one of the following values: LL_DAC_OUTPUT_BUFFER_ENABLE LL_DAC_OUTPUT_BUFFER_DISABLE

Return values

None

Definition at line 1093 of file stm32l4xx_ll_dac.h.

{
  MODIFY_REG(DACx->MCR,
             (uint32_t)DAC_MCR_MODE1_1 << (DAC_Channel & DAC_CR_CHX_BITOFFSET_MASK),
             OutputBuffer << (DAC_Channel & DAC_CR_CHX_BITOFFSET_MASK));
}

LL_DAC_SetOutputConnection()

__STATIC_INLINE void LL_DAC_SetOutputConnection	(	DAC_TypeDef *	DACx,
		uint32_t	DAC_Channel,
		uint32_t	OutputConnection
	)

Set the output connection for the selected DAC channel.

Note

On this STM32 serie, output connection depends on output mode (normal or sample and hold) and output buffer state.

• if output connection is set to internal path and output buffer is enabled (whatever output mode): output connection is also connected to GPIO pin (both connections to GPIO pin and internal path).
• if output connection is set to GPIO pin, output buffer is disabled, output mode set to sample and hold: output connection is also connected to internal path (both connections to GPIO pin and internal path). CR MODE1 LL_DAC_SetOutputConnection
  CR MODE2 LL_DAC_SetOutputConnection

Parameters

DACx	DAC instance
DAC_Channel	This parameter can be one of the following values: LL_DAC_CHANNEL_1 LL_DAC_CHANNEL_2 (1) (1) On this STM32 serie, parameter not available on all devices. Refer to device datasheet for channels availability.
OutputConnection	This parameter can be one of the following values: LL_DAC_OUTPUT_CONNECT_GPIO LL_DAC_OUTPUT_CONNECT_INTERNAL

Return values

None

Definition at line 1148 of file stm32l4xx_ll_dac.h.

{
  MODIFY_REG(DACx->MCR,
             (uint32_t)DAC_MCR_MODE1_0 << (DAC_Channel & DAC_CR_CHX_BITOFFSET_MASK),
             OutputConnection << (DAC_Channel & DAC_CR_CHX_BITOFFSET_MASK));
}

LL_DAC_SetOutputMode()

__STATIC_INLINE void LL_DAC_SetOutputMode	(	DAC_TypeDef *	DACx,
		uint32_t	DAC_Channel,
		uint32_t	OutputMode
	)

Set the output mode normal or sample-and-hold for the selected DAC channel.

Note

Mode sample-and-hold requires an external capacitor to be connected between DAC channel output and ground. Capacitor value depends on load on DAC channel output and sample-and-hold timings configured. As indication, capacitor typical value is 100nF (refer to device datasheet, parameter "CSH"). CR MODE1 LL_DAC_SetOutputMode
CR MODE2 LL_DAC_SetOutputMode

Parameters

DACx	DAC instance
DAC_Channel	This parameter can be one of the following values: LL_DAC_CHANNEL_1 LL_DAC_CHANNEL_2 (1) (1) On this STM32 serie, parameter not available on all devices. Refer to device datasheet for channels availability.
OutputMode	This parameter can be one of the following values: LL_DAC_OUTPUT_MODE_NORMAL LL_DAC_OUTPUT_MODE_SAMPLE_AND_HOLD

Return values

None

Definition at line 1044 of file stm32l4xx_ll_dac.h.

{
  MODIFY_REG(DACx->MCR,
             (uint32_t)DAC_MCR_MODE1_2 << (DAC_Channel & DAC_CR_CHX_BITOFFSET_MASK),
             OutputMode << (DAC_Channel & DAC_CR_CHX_BITOFFSET_MASK));
}

LL_DAC_SetSampleAndHoldHoldTime()

__STATIC_INLINE void LL_DAC_SetSampleAndHoldHoldTime	(	DAC_TypeDef *	DACx,
		uint32_t	DAC_Channel,
		uint32_t	HoldTime
	)

Set the sample-and-hold timing for the selected DAC channel: hold time SHHR THOLD1 LL_DAC_SetSampleAndHoldHoldTime
SHHR THOLD2 LL_DAC_SetSampleAndHoldHoldTime.

Parameters

DACx	DAC instance
DAC_Channel	This parameter can be one of the following values: LL_DAC_CHANNEL_1 LL_DAC_CHANNEL_2 (1) (1) On this STM32 serie, parameter not available on all devices. Refer to device datasheet for channels availability.
HoldTime	Value between Min_Data=0x000 and Max_Data=0x3FF

Return values

None

Definition at line 1251 of file stm32l4xx_ll_dac.h.

{
  MODIFY_REG(DACx->SHHR,
             DAC_SHHR_THOLD1 << (DAC_Channel & DAC_CR_CHX_BITOFFSET_MASK),
             HoldTime << (DAC_Channel & DAC_CR_CHX_BITOFFSET_MASK));
}

LL_DAC_SetSampleAndHoldRefreshTime()

__STATIC_INLINE void LL_DAC_SetSampleAndHoldRefreshTime	(	DAC_TypeDef *	DACx,
		uint32_t	DAC_Channel,
		uint32_t	RefreshTime
	)

Set the sample-and-hold timing for the selected DAC channel: refresh time SHRR TREFRESH1 LL_DAC_SetSampleAndHoldRefreshTime
SHRR TREFRESH2 LL_DAC_SetSampleAndHoldRefreshTime.

Parameters

DACx	DAC instance
DAC_Channel	This parameter can be one of the following values: LL_DAC_CHANNEL_1 LL_DAC_CHANNEL_2 (1) (1) On this STM32 serie, parameter not available on all devices. Refer to device datasheet for channels availability.
RefreshTime	Value between Min_Data=0x00 and Max_Data=0xFF

Return values

None

Definition at line 1294 of file stm32l4xx_ll_dac.h.

{
  MODIFY_REG(DACx->SHRR,
             DAC_SHRR_TREFRESH1 << (DAC_Channel & DAC_CR_CHX_BITOFFSET_MASK),
             RefreshTime << (DAC_Channel & DAC_CR_CHX_BITOFFSET_MASK));
}

LL_DAC_SetSampleAndHoldSampleTime()

__STATIC_INLINE void LL_DAC_SetSampleAndHoldSampleTime	(	DAC_TypeDef *	DACx,
		uint32_t	DAC_Channel,
		uint32_t	SampleTime
	)

Set the sample-and-hold timing for the selected DAC channel: sample time.

Note

Sample time must be set when DAC channel is disabled or during DAC operation when DAC channel flag BWSTx is reset, otherwise the setting is ignored. Check BWSTx flag state using function "LL_DAC_IsActiveFlag_BWSTx()". SHSR1 TSAMPLE1 LL_DAC_SetSampleAndHoldSampleTime
SHSR2 TSAMPLE2 LL_DAC_SetSampleAndHoldSampleTime

Parameters

DACx	DAC instance
DAC_Channel	This parameter can be one of the following values: LL_DAC_CHANNEL_1 LL_DAC_CHANNEL_2 (1) (1) On this STM32 serie, parameter not available on all devices. Refer to device datasheet for channels availability.
SampleTime	Value between Min_Data=0x000 and Max_Data=0x3FF

Return values

None

Definition at line 1206 of file stm32l4xx_ll_dac.h.

{
  __IO uint32_t *preg = __DAC_PTR_REG_OFFSET(DACx->SHSR1, (DAC_Channel >> DAC_REG_SHSRX_REGOFFSET_BITOFFSET_POS) & DAC_REG_SHSRX_REGOFFSET_MASK_POSBIT0);

  MODIFY_REG(*preg,
             DAC_SHSR1_TSAMPLE1,
             SampleTime);
}

LL_DAC_SetTriggerSource()

__STATIC_INLINE void LL_DAC_SetTriggerSource	(	DAC_TypeDef *	DACx,
		uint32_t	DAC_Channel,
		uint32_t	TriggerSource
	)

Set the conversion trigger source for the selected DAC channel.

Note

For conversion trigger source to be effective, DAC trigger must be enabled using function LL_DAC_EnableTrigger().

To set conversion trigger source, DAC channel must be disabled. Otherwise, the setting is discarded.

Availability of parameters of trigger sources from timer depends on timers availability on the selected device. CR TSEL1 LL_DAC_SetTriggerSource
CR TSEL2 LL_DAC_SetTriggerSource

Parameters

DACx	DAC instance
DAC_Channel	This parameter can be one of the following values: LL_DAC_CHANNEL_1 LL_DAC_CHANNEL_2
TriggerSource	This parameter can be one of the following values: LL_DAC_TRIG_SOFTWARE LL_DAC_TRIG_EXT_TIM1_TRGO LL_DAC_TRIG_EXT_TIM2_TRGO LL_DAC_TRIG_EXT_TIM4_TRGO LL_DAC_TRIG_EXT_TIM5_TRGO LL_DAC_TRIG_EXT_TIM6_TRGO LL_DAC_TRIG_EXT_TIM7_TRGO LL_DAC_TRIG_EXT_TIM8_TRGO LL_DAC_TRIG_EXT_TIM15_TRGO LL_DAC_TRIG_EXT_LPTIM1_OUT LL_DAC_TRIG_EXT_LPTIM2_OUT LL_DAC_TRIG_EXT_EXTI_LINE9

Return values

None

Definition at line 729 of file stm32l4xx_ll_dac.h.

{
  MODIFY_REG(DACx->CR,
             DAC_CR_TSEL1 << (DAC_Channel & DAC_CR_CHX_BITOFFSET_MASK),
             TriggerSource << (DAC_Channel & DAC_CR_CHX_BITOFFSET_MASK));
}

LL_DAC_SetTrimmingValue()

__STATIC_INLINE void LL_DAC_SetTrimmingValue	(	DAC_TypeDef *	DACx,
		uint32_t	DAC_Channel,
		uint32_t	TrimmingValue
	)

Set the offset trimming value for the selected DAC channel. Trimming has an impact when output buffer is enabled and is intended to replace factory calibration default values. CCR OTRIM1 LL_DAC_SetTrimmingValue
CCR OTRIM2 LL_DAC_SetTrimmingValue.

Parameters

DACx	DAC instance
DAC_Channel	This parameter can be one of the following values: LL_DAC_CHANNEL_1 LL_DAC_CHANNEL_2
TrimmingValue	Value between Min_Data=0x00 and Max_Data=0x1F

Return values

None

Definition at line 674 of file stm32l4xx_ll_dac.h.

{
  MODIFY_REG(DACx->CCR,
             DAC_CCR_OTRIM1 << (DAC_Channel & DAC_CR_CHX_BITOFFSET_MASK),
             TrimmingValue << (DAC_Channel & DAC_CR_CHX_BITOFFSET_MASK));
}

LL_DAC_SetWaveAutoGeneration()

__STATIC_INLINE void LL_DAC_SetWaveAutoGeneration	(	DAC_TypeDef *	DACx,
		uint32_t	DAC_Channel,
		uint32_t	WaveAutoGeneration
	)

Set the waveform automatic generation mode for the selected DAC channel. CR WAVE1 LL_DAC_SetWaveAutoGeneration
CR WAVE2 LL_DAC_SetWaveAutoGeneration.

Parameters

DACx	DAC instance
DAC_Channel	This parameter can be one of the following values: LL_DAC_CHANNEL_1 LL_DAC_CHANNEL_2 (1) (1) On this STM32 serie, parameter not available on all devices. Refer to device datasheet for channels availability.
WaveAutoGeneration	This parameter can be one of the following values: LL_DAC_WAVE_AUTO_GENERATION_NONE LL_DAC_WAVE_AUTO_GENERATION_NOISE LL_DAC_WAVE_AUTO_GENERATION_TRIANGLE

Return values

None

Definition at line 790 of file stm32l4xx_ll_dac.h.

{
  MODIFY_REG(DACx->CR,
             DAC_CR_WAVE1 << (DAC_Channel & DAC_CR_CHX_BITOFFSET_MASK),
             WaveAutoGeneration << (DAC_Channel & DAC_CR_CHX_BITOFFSET_MASK));
}

LL_DAC_SetWaveNoiseLFSR()

__STATIC_INLINE void LL_DAC_SetWaveNoiseLFSR	(	DAC_TypeDef *	DACx,
		uint32_t	DAC_Channel,
		uint32_t	NoiseLFSRMask
	)

Set the noise waveform generation for the selected DAC channel: Noise mode and parameters LFSR (linear feedback shift register).

Note

For wave generation to be effective, DAC channel wave generation mode must be enabled using function LL_DAC_SetWaveAutoGeneration().

This setting can be set when the selected DAC channel is disabled (otherwise, the setting operation is ignored). CR MAMP1 LL_DAC_SetWaveNoiseLFSR
CR MAMP2 LL_DAC_SetWaveNoiseLFSR

Parameters

DACx	DAC instance
DAC_Channel	This parameter can be one of the following values: LL_DAC_CHANNEL_1 LL_DAC_CHANNEL_2 (1) (1) On this STM32 serie, parameter not available on all devices. Refer to device datasheet for channels availability.
NoiseLFSRMask	This parameter can be one of the following values: LL_DAC_NOISE_LFSR_UNMASK_BIT0 LL_DAC_NOISE_LFSR_UNMASK_BITS1_0 LL_DAC_NOISE_LFSR_UNMASK_BITS2_0 LL_DAC_NOISE_LFSR_UNMASK_BITS3_0 LL_DAC_NOISE_LFSR_UNMASK_BITS4_0 LL_DAC_NOISE_LFSR_UNMASK_BITS5_0 LL_DAC_NOISE_LFSR_UNMASK_BITS6_0 LL_DAC_NOISE_LFSR_UNMASK_BITS7_0 LL_DAC_NOISE_LFSR_UNMASK_BITS8_0 LL_DAC_NOISE_LFSR_UNMASK_BITS9_0 LL_DAC_NOISE_LFSR_UNMASK_BITS10_0 LL_DAC_NOISE_LFSR_UNMASK_BITS11_0

Return values

None

Definition at line 853 of file stm32l4xx_ll_dac.h.

{
  MODIFY_REG(DACx->CR,
             DAC_CR_MAMP1 << (DAC_Channel & DAC_CR_CHX_BITOFFSET_MASK),
             NoiseLFSRMask << (DAC_Channel & DAC_CR_CHX_BITOFFSET_MASK));
}

LL_DAC_SetWaveTriangleAmplitude()

__STATIC_INLINE void LL_DAC_SetWaveTriangleAmplitude	(	DAC_TypeDef *	DACx,
		uint32_t	DAC_Channel,
		uint32_t	TriangleAmplitude
	)

Set the triangle waveform generation for the selected DAC channel: triangle mode and amplitude.

Note

For wave generation to be effective, DAC channel wave generation mode must be enabled using function LL_DAC_SetWaveAutoGeneration().

This setting can be set when the selected DAC channel is disabled (otherwise, the setting operation is ignored). CR MAMP1 LL_DAC_SetWaveTriangleAmplitude
CR MAMP2 LL_DAC_SetWaveTriangleAmplitude

Parameters

DACx	DAC instance
DAC_Channel	This parameter can be one of the following values: LL_DAC_CHANNEL_1 LL_DAC_CHANNEL_2 (1) (1) On this STM32 serie, parameter not available on all devices. Refer to device datasheet for channels availability.
TriangleAmplitude	This parameter can be one of the following values: LL_DAC_TRIANGLE_AMPLITUDE_1 LL_DAC_TRIANGLE_AMPLITUDE_3 LL_DAC_TRIANGLE_AMPLITUDE_7 LL_DAC_TRIANGLE_AMPLITUDE_15 LL_DAC_TRIANGLE_AMPLITUDE_31 LL_DAC_TRIANGLE_AMPLITUDE_63 LL_DAC_TRIANGLE_AMPLITUDE_127 LL_DAC_TRIANGLE_AMPLITUDE_255 LL_DAC_TRIANGLE_AMPLITUDE_511 LL_DAC_TRIANGLE_AMPLITUDE_1023 LL_DAC_TRIANGLE_AMPLITUDE_2047 LL_DAC_TRIANGLE_AMPLITUDE_4095

Return values

None

Definition at line 925 of file stm32l4xx_ll_dac.h.

{
  MODIFY_REG(DACx->CR,
             DAC_CR_MAMP1 << (DAC_Channel & DAC_CR_CHX_BITOFFSET_MASK),
             TriangleAmplitude << (DAC_Channel & DAC_CR_CHX_BITOFFSET_MASK));
}