Regular Channels DMA Configuration functions. More...

Collaboration diagram for Regular Channels DMA Configuration functions:

Functions
void	ADC_DMACmd (ADC_TypeDef *ADCx, FunctionalState NewState)
	Enables or disables the specified ADC DMA request. More...

void	ADC_DMAConfig (ADC_TypeDef *ADCx, uint32_t ADC_DMAMode)
	Configure ADC DMA mode. More...

void	ADC_DMARequestAfterLastTransferCmd (ADC_TypeDef *ADCx, FunctionalState NewState)
	Enables or disables the ADC DMA request after last transfer (Single-ADC mode) More...

void	ADC_MultiModeDMARequestAfterLastTransferCmd (FunctionalState NewState)
	Enables or disables the ADC DMA request after last transfer in multi ADC mode. More...

Detailed Description

Regular Channels DMA Configuration functions.

 ===============================================================================
            ##### Regular Channels DMA Configuration functions #####
 ===============================================================================  
    [..] This section provides functions allowing to configure the DMA for ADC 
         regular channels.
         Since converted regular channel values are stored into a unique data 
         register, it is useful to use DMA for conversion of more than one regular 
         channel. This avoids the loss of the data already stored in the ADC 
         Data register.   
         When the DMA mode is enabled (using the ADC_DMACmd() function), after each
         conversion of a regular channel, a DMA request is generated.
    [..] Depending on the "DMA disable selection for Independent ADC mode" 
         configuration (using the ADC_DMARequestAfterLastTransferCmd() function), 
         at the end of the last DMA transfer, two possibilities are allowed:
      (+) No new DMA request is issued to the DMA controller (feature DISABLED) 
      (+) Requests can continue to be generated (feature ENABLED).  
    [..] Depending on the "DMA disable selection for multi ADC mode" configuration 
         (using the void ADC_MultiModeDMARequestAfterLastTransferCmd() function), 
         at the end of the last DMA transfer, two possibilities are allowed:
        (+) No new DMA request is issued to the DMA controller (feature DISABLED) 
        (+) Requests can continue to be generated (feature ENABLED).

 ===============================================================================
                   ##### Regular Channels DMA Configuration functions #####
 ===============================================================================  

  [..] This section provides functions allowing to configure the DMA for ADC regular 
  channels. Since converted regular channel values are stored into a unique data register, 
  it is useful to use DMA for conversion of more than one regular channel. This 
  avoids the loss of the data already stored in the ADC Data register. 
  
  (#) ADC_DMACmd() function is used to enable the ADC DMA mode, after each
      conversion of a regular channel, a DMA request is generated.
  (#) ADC_DMAConfig() function is used to select between the one shot DMA mode 
      or the circular DMA mode

Function Documentation

void ADC_DMACmd	(	ADC_TypeDef *	ADCx,
		FunctionalState	NewState
	)

Enables or disables the specified ADC DMA request.

Parameters

ADCx	where x can be 1, 2 or 3 to select the ADC peripheral.
NewState	new state of the selected ADC DMA transfer. This parameter can be: ENABLE or DISABLE.

Return values

None

Parameters

ADCx	where x can be 1, 2, 3 or 4 to select the ADC peripheral.
NewState	new state of the selected ADC DMA transfer. This parameter can be: ENABLE or DISABLE.

Return values

None

Definition at line 1048 of file stm32f4xx_adc.c.

void ADC_DMAConfig	(	ADC_TypeDef *	ADCx,
		uint32_t	ADC_DMAMode
	)

Configure ADC DMA mode.

Parameters

ADCx	where x can be 1, 2, 3 or 4 to select the ADC peripheral.
ADC_DMAMode	select the ADC DMA mode. This parameter can be one of the following values: ADC_DMAMode_OneShot: ADC DMA Oneshot mode ADC_DMAMode_Circular: ADC DMA circular mode

Return values

None

Definition at line 1780 of file stm32f30x_adc.c.

void ADC_DMARequestAfterLastTransferCmd	(	ADC_TypeDef *	ADCx,
		FunctionalState	NewState
	)

Enables or disables the ADC DMA request after last transfer (Single-ADC mode)

Parameters

ADCx	where x can be 1, 2 or 3 to select the ADC peripheral.
NewState	new state of the selected ADC DMA request after last transfer. This parameter can be: ENABLE or DISABLE.

Return values

None

Definition at line 1072 of file stm32f4xx_adc.c.

void ADC_MultiModeDMARequestAfterLastTransferCmd ( FunctionalState NewState )

Enables or disables the ADC DMA request after last transfer in multi ADC mode.

Parameters

NewState new state of the selected ADC DMA request after last transfer. This parameter can be: ENABLE or DISABLE.

Note: if Enabled, DMA requests are issued as long as data are converted and DMA mode for multi ADC mode (selected using ADC_CommonInit() function by ADC_CommonInitStruct.ADC_DMAAccessMode structure member) is ADC_DMAAccessMode_1, ADC_DMAAccessMode_2 or ADC_DMAAccessMode_3.

Return values

None

Definition at line 1099 of file stm32f4xx_adc.c.

Functions

Detailed Description

Function Documentation