ST STM32F31xx

UM1581
DMA controller (DMA)
DocID023800 Rev 1
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parameters in the DMA_InitStruct.
Parameters
 DMAy_Channelx : where y can be 1 or 2 to select the DMA
and x can be 1 to 7 for DMA1 and 1 to 5 for DMA2 to select
the DMA Channel.
 DMA_InitStruct : pointer to a DMA_InitTypeDef structure
that contains the configuration information for the specified
DMA Channel.
Return values
 None.
Notes
 None.
9.2.5.3 DMA_StructInit
Function Name
void DMA_StructInit ( DMA_InitTypeDef * DMA_InitStruct)
Function Description
Fills each DMA_InitStruct member with its default value.
Parameters
 DMA_InitStruct : pointer to a DMA_InitTypeDef structure
which will be initialized.
Return values
 None.
Notes
 None.
9.2.5.4 DMA_Cmd
Function Name
void DMA_Cmd ( DMA_Channel_TypeDef * DMAy_Channelx,
FunctionalState NewState)
Function Description
Enables or disables the specified DMAy Channelx.
Parameters
 DMAy_Channelx : where y can be 1 or 2 to select the DMA
and x can be 1 to 7 for DMA1 and 1 to 5 for DMA2 to select
the DMA Channel.
 NewState : new state of the DMAy Channelx. This
parameter can be: ENABLE or DISABLE.
Return values
 None.
Notes
 None.