DMA management functions

DMA management functions. More...

Collaboration diagram for DMA management functions:

Functions
void	DAC_DMACmd (uint32_t DAC_Channel, FunctionalState NewState)
	Enables or disables the specified DAC channel DMA request. More...
void	DAC_DMACmd (DAC_TypeDef *DACx, uint32_t DAC_Channel, FunctionalState NewState)
	Enables or disables the specified DAC channel DMA request. When enabled DMA1 is generated when an external trigger (EXTI Line9, TIM2, TIM4, TIM6, TIM7 or TIM9 but not a software trigger) occurs. More...

Detailed Description

DMA management functions.

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                       ##### DMA management functions #####
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Function Documentation

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

Definition at line 510 of file stm32f4xx_dac.c.

void DAC_DMACmd	(	DAC_TypeDef *	DACx,
		uint32_t	DAC_Channel,
		FunctionalState	NewState
	)

Enables or disables the specified DAC channel DMA request. When enabled DMA1 is generated when an external trigger (EXTI Line9, TIM2, TIM4, TIM6, TIM7 or TIM9 but not a software trigger) occurs.

Parameters

DACx	where x can be 1 or 2 to select the DAC peripheral.
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 (channel2) is mapped on DMA1 channel3 (channel4) which must be already configured.

Return values

None

Definition at line 540 of file stm32f30x_dac.c.