Dac Management Functions - ST STM32F31xx User Manual

Digital-to-analog converter (DAC)
7.2.6.11 DAC_GetDataOutputValue
Function Name
Function Description
Parameters
Return values
Notes
7.2.7

DAC management functions

7.2.7.1 DAC_DMACmd
Function Name
Function Description
Parameters
Return values
Notes
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uint16_t DAC_GetDataOutputValue ( uint32_t DAC_Channel)
Returns the last data output value of the selected DAC channel.

DAC_Channel : The selected DAC channel. This parameter
can be:

DAC_Channel_1 :

DAC_Channel_2 :

The selected DAC channel data output value.

None.
void DAC_DMACmd ( uint32_t DAC_Channel,
NewState)
Enables or disables the specified DAC channel DMA request.

DAC_Channel : The selected DAC channel. This parameter
can be:

DAC_Channel_1 :

DAC_Channel_2 :

NewState : new state of the selected DAC channel DMA
request. This parameter can be: ENABLE or DISABLE.

None.

When enabled DMA1 is generated when an external trigger
(EXTI Line9, TIM2, TIM4, TIM5, TIM6, TIM7 or TIM8 but not a
software trigger) occurs.

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.
DocID023800 Rev 1
DAC Channel1 selected
DAC Channel2 selected
FunctionalState
DAC Channel1 selected
DAC Channel2 selected
UM1581