DAC driver modules. More...

Modules
	DAC_Exported_Constants

	DAC_Private_Functions

Data Structures
struct	DAC_InitTypeDef
	DAC Init structure definition. More...

Macros
#define	CR_CLEAR_MASK ((uint32_t)0x00000FFE)

#define	DUAL_SWTRIG_SET ((uint32_t)0x00000003)

#define	DUAL_SWTRIG_RESET ((uint32_t)0xFFFFFFFC)

#define	DHR12R1_OFFSET ((uint32_t)0x00000008)

#define	DHR12R2_OFFSET ((uint32_t)0x00000014)

#define	DHR12RD_OFFSET ((uint32_t)0x00000020)

#define	DOR_OFFSET ((uint32_t)0x0000002C)

Functions
void	DAC_DeInit (void)
	Deinitializes the DAC peripheral registers to their default reset values. More...

void	DAC_Init (uint32_t DAC_Channel, DAC_InitTypeDef *DAC_InitStruct)
	Initializes the DAC peripheral according to the specified parameters in the DAC_InitStruct. More...

void	DAC_StructInit (DAC_InitTypeDef *DAC_InitStruct)
	Fills each DAC_InitStruct member with its default value. More...

void	DAC_Cmd (uint32_t DAC_Channel, FunctionalState NewState)
	Enables or disables the specified DAC channel. More...

void	DAC_SoftwareTriggerCmd (uint32_t DAC_Channel, FunctionalState NewState)
	Enables or disables the selected DAC channel software trigger. More...

void	DAC_DualSoftwareTriggerCmd (FunctionalState NewState)
	Enables or disables simultaneously the two DAC channels software triggers. More...

void	DAC_WaveGenerationCmd (uint32_t DAC_Channel, uint32_t DAC_Wave, FunctionalState NewState)
	Enables or disables the selected DAC channel wave generation. More...

void	DAC_SetChannel1Data (uint32_t DAC_Align, uint16_t Data)
	Set the specified data holding register value for DAC channel1. More...

void	DAC_SetChannel2Data (uint32_t DAC_Align, uint16_t Data)
	Set the specified data holding register value for DAC channel2. More...

void	DAC_SetDualChannelData (uint32_t DAC_Align, uint16_t Data2, uint16_t Data1)
	Set the specified data holding register value for dual channel DAC. More...

uint16_t	DAC_GetDataOutputValue (uint32_t DAC_Channel)
	Returns the last data output value of the selected DAC channel. More...

void	DAC_DMACmd (uint32_t DAC_Channel, FunctionalState NewState)
	Enables or disables the specified DAC channel DMA request. More...

void	DAC_ITConfig (uint32_t DAC_Channel, uint32_t DAC_IT, FunctionalState NewState)
	Enables or disables the specified DAC interrupts. More...

FlagStatus	DAC_GetFlagStatus (uint32_t DAC_Channel, uint32_t DAC_FLAG)
	Checks whether the specified DAC flag is set or not. More...

void	DAC_ClearFlag (uint32_t DAC_Channel, uint32_t DAC_FLAG)
	Clears the DAC channel's pending flags. More...

ITStatus	DAC_GetITStatus (uint32_t DAC_Channel, uint32_t DAC_IT)
	Checks whether the specified DAC interrupt has occurred or not. More...

void	DAC_ClearITPendingBit (uint32_t DAC_Channel, uint32_t DAC_IT)
	Clears the DAC channel's interrupt pending bits. More...

Detailed Description

DAC driver modules.

Function Documentation

void DAC_ClearFlag	(	uint32_t	DAC_Channel,
		uint32_t	DAC_FLAG
	)

Clears the DAC channel's pending flags.

Parameters

DAC_Channel,:	The selected DAC channel. This parameter can be one of the following values: DAC_Channel_1: DAC Channel1 selected DAC_Channel_2: DAC Channel2 selected
DAC_FLAG,:	specifies the flag to clear. This parameter can be of the following value: DAC_FLAG_DMAUDR: DMA underrun flag

Note: The DMA underrun occurs when a second external trigger arrives before the acknowledgement for the first external trigger is received (first request).

Return values

None

void DAC_ClearITPendingBit	(	uint32_t	DAC_Channel,
		uint32_t	DAC_IT
	)

Clears the DAC channel's interrupt pending bits.

Parameters

DAC_Channel,:	The selected DAC channel. This parameter can be one of the following values: DAC_Channel_1: DAC Channel1 selected DAC_Channel_2: DAC Channel2 selected
DAC_IT,:	specifies the DAC interrupt pending bit to clear. This parameter can be the following values: DAC_IT_DMAUDR: DMA underrun interrupt mask

Note: The DMA underrun occurs when a second external trigger arrives before the acknowledgement for the first external trigger is received (first request).

Return values

None

void DAC_Cmd	(	uint32_t	DAC_Channel,
		FunctionalState	NewState
	)

Enables or disables the specified DAC channel.

Parameters

DAC_Channel,:	The selected DAC channel. This parameter can be one of the following values: DAC_Channel_1: DAC Channel1 selected DAC_Channel_2: DAC Channel2 selected
NewState,:	new state of the DAC channel. This parameter can be: ENABLE or DISABLE.

Note: When the DAC channel is enabled the trigger source can no more be modified.

Return values

None

void DAC_DeInit ( void )

Deinitializes the DAC peripheral registers to their default reset values.

Parameters

None

Return values

None

void DAC_DMACmd	(	uint32_t	DAC_Channel,
		FunctionalState	NewState
	)

Enables or disables the specified DAC channel DMA request.

Note: When enabled DMA1 is generated when an external trigger (EXTI Line9, TIM2, TIM4, TIM5, TIM6, TIM7 or TIM8 but not a software trigger) occurs.

Parameters

DAC_Channel,:	The selected DAC channel. This parameter can be one of the following values: DAC_Channel_1: DAC Channel1 selected DAC_Channel_2: DAC Channel2 selected
NewState,:	new state of the selected DAC channel DMA request. This parameter can be: ENABLE or DISABLE.

Note: The DAC channel1 is mapped on DMA1 Stream 5 channel7 which must be already configured.; The DAC channel2 is mapped on DMA1 Stream 6 channel7 which must be already configured.

Return values

None

void DAC_DualSoftwareTriggerCmd ( FunctionalState NewState )

Enables or disables simultaneously the two DAC channels software triggers.

Parameters

NewState,: new state of the DAC channels software triggers. This parameter can be: ENABLE or DISABLE.

Return values

None

uint16_t DAC_GetDataOutputValue ( uint32_t DAC_Channel )

Returns the last data output value of the selected DAC channel.

Parameters

DAC_Channel,:

The selected DAC channel. This parameter can be one of the following values:

DAC_Channel_1: DAC Channel1 selected
DAC_Channel_2: DAC Channel2 selected

Return values

The	selected DAC channel data output value.

FlagStatus DAC_GetFlagStatus	(	uint32_t	DAC_Channel,
		uint32_t	DAC_FLAG
	)

Checks whether the specified DAC flag is set or not.

Parameters

DAC_Channel,:	The selected DAC channel. This parameter can be one of the following values: DAC_Channel_1: DAC Channel1 selected DAC_Channel_2: DAC Channel2 selected
DAC_FLAG,:	specifies the flag to check. This parameter can be only of the following value: DAC_FLAG_DMAUDR: DMA underrun flag

Note: The DMA underrun occurs when a second external trigger arrives before the acknowledgement for the first external trigger is received (first request).

Return values

The	new state of DAC_FLAG (SET or RESET).

ITStatus DAC_GetITStatus	(	uint32_t	DAC_Channel,
		uint32_t	DAC_IT
	)

Checks whether the specified DAC interrupt has occurred or not.

Parameters

DAC_Channel,:	The selected DAC channel. This parameter can be one of the following values: DAC_Channel_1: DAC Channel1 selected DAC_Channel_2: DAC Channel2 selected
DAC_IT,:	specifies the DAC interrupt source to check. This parameter can be the following values: DAC_IT_DMAUDR: DMA underrun interrupt mask

Note: The DMA underrun occurs when a second external trigger arrives before the acknowledgement for the first external trigger is received (first request).

Return values

The	new state of DAC_IT (SET or RESET).

void DAC_Init	(	uint32_t	DAC_Channel,
		DAC_InitTypeDef *	DAC_InitStruct
	)

Initializes the DAC peripheral according to the specified parameters in the DAC_InitStruct.

Parameters

DAC_Channel,:	the selected DAC channel. This parameter can be one of the following values: DAC_Channel_1: DAC Channel1 selected DAC_Channel_2: DAC Channel2 selected
DAC_InitStruct,:	pointer to a DAC_InitTypeDef structure that contains the configuration information for the specified DAC channel.

Return values

None

void DAC_ITConfig	(	uint32_t	DAC_Channel,
		uint32_t	DAC_IT,
		FunctionalState	NewState
	)

Enables or disables the specified DAC interrupts.

Parameters

DAC_Channel,:	The selected DAC channel. This parameter can be one of the following values: DAC_Channel_1: DAC Channel1 selected DAC_Channel_2: DAC Channel2 selected
DAC_IT,:	specifies the DAC interrupt sources to be enabled or disabled. This parameter can be the following values: DAC_IT_DMAUDR: DMA underrun interrupt mask

Note: The DMA underrun occurs when a second external trigger arrives before the acknowledgement for the first external trigger is received (first request).

Parameters

NewState,: new state of the specified DAC interrupts. This parameter can be: ENABLE or DISABLE.

Return values

None

void DAC_SetChannel1Data	(	uint32_t	DAC_Align,
		uint16_t	Data
	)

Set the specified data holding register value for DAC channel1.

Parameters

DAC_Align,:	Specifies the data alignment for DAC channel1. This parameter can be one of the following values: DAC_Align_8b_R: 8bit right data alignment selected DAC_Align_12b_L: 12bit left data alignment selected DAC_Align_12b_R: 12bit right data alignment selected
Data,:	Data to be loaded in the selected data holding register.

Return values

None

void DAC_SetChannel2Data	(	uint32_t	DAC_Align,
		uint16_t	Data
	)

Set the specified data holding register value for DAC channel2.

Parameters

DAC_Align,:	Specifies the data alignment for DAC channel2. This parameter can be one of the following values: DAC_Align_8b_R: 8bit right data alignment selected DAC_Align_12b_L: 12bit left data alignment selected DAC_Align_12b_R: 12bit right data alignment selected
Data,:	Data to be loaded in the selected data holding register.

Return values

None

void DAC_SetDualChannelData	(	uint32_t	DAC_Align,
		uint16_t	Data2,
		uint16_t	Data1
	)

Set the specified data holding register value for dual channel DAC.

Parameters

DAC_Align,:	Specifies the data alignment for dual channel DAC. This parameter can be one of the following values: DAC_Align_8b_R: 8bit right data alignment selected DAC_Align_12b_L: 12bit left data alignment selected DAC_Align_12b_R: 12bit right data alignment selected
Data2,:	Data for DAC Channel2 to be loaded in the selected data holding register.
Data1,:	Data for DAC Channel1 to be loaded in the selected data holding register.

Note: In dual mode, a unique register access is required to write in both DAC channels at the same time.

Return values

None

void DAC_SoftwareTriggerCmd	(	uint32_t	DAC_Channel,
		FunctionalState	NewState
	)

Enables or disables the selected DAC channel software trigger.

Parameters

DAC_Channel,:	The selected DAC channel. This parameter can be one of the following values: DAC_Channel_1: DAC Channel1 selected DAC_Channel_2: DAC Channel2 selected
NewState,:	new state of the selected DAC channel software trigger. This parameter can be: ENABLE or DISABLE.

Return values

None

void DAC_StructInit ( DAC_InitTypeDef * DAC_InitStruct )

Fills each DAC_InitStruct member with its default value.

Parameters

DAC_InitStruct,: pointer to a DAC_InitTypeDef structure which will be initialized.

Return values

None

void DAC_WaveGenerationCmd	(	uint32_t	DAC_Channel,
		uint32_t	DAC_Wave,
		FunctionalState	NewState
	)

Enables or disables the selected DAC channel wave generation.

Parameters

DAC_Channel,:	The selected DAC channel. This parameter can be one of the following values: DAC_Channel_1: DAC Channel1 selected DAC_Channel_2: DAC Channel2 selected
DAC_Wave,:	specifies the wave type to enable or disable. This parameter can be one of the following values: DAC_Wave_Noise: noise wave generation DAC_Wave_Triangle: triangle wave generation
NewState,:	new state of the selected DAC channel wave generation. This parameter can be: ENABLE or DISABLE.

Return values

None

Modules

Data Structures

Macros

Functions

Detailed Description

Function Documentation