Martin Johnson / STM32F3-Discovery

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Initialization and Configuration functions
Functions

Initialization and Configuration functions
[DMA_Private_Functions]

Initialization and Configuration functions. More...

Functions

void DMA_DeInit (DMA_Channel_TypeDef *DMAy_Channelx)
 Deinitializes the DMAy Channelx registers to their default reset values.
void DMA_Init (DMA_Channel_TypeDef *DMAy_Channelx, DMA_InitTypeDef *DMA_InitStruct)
 Initializes the DMAy Channelx according to the specified parameters in the DMA_InitStruct.
void DMA_StructInit (DMA_InitTypeDef *DMA_InitStruct)
 Fills each DMA_InitStruct member with its default value.
void DMA_Cmd (DMA_Channel_TypeDef *DMAy_Channelx, FunctionalState NewState)
 Enables or disables the specified DMAy Channelx.

Detailed Description

Initialization and Configuration functions. 

 ===============================================================================
              ##### Initialization and Configuration functions #####
 ===============================================================================
    [..] This subsection provides functions allowing to initialize the DMA channel 
         source and destination addresses, incrementation and data sizes, transfer 
         direction, buffer size, circular/normal mode selection, memory-to-memory 
         mode selection and channel priority value.
    [..] The DMA_Init() function follows the DMA configuration procedures as described 
         in reference manual (RM00316).

Function Documentation

void DMA_Cmd ( DMA_Channel_TypeDef *  DMAy_Channelx,
FunctionalState  NewState 
)

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

Definition at line 328 of file stm32f30x_dma.c.

void DMA_DeInit ( DMA_Channel_TypeDef *  DMAy_Channelx )

Deinitializes the DMAy Channelx registers to their default reset values.

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.
Return values:
None

Definition at line 141 of file stm32f30x_dma.c.

void DMA_Init ( DMA_Channel_TypeDef *  DMAy_Channelx,
DMA_InitTypeDef *  DMA_InitStruct 
)

Initializes the DMAy Channelx according to the specified 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

Definition at line 235 of file stm32f30x_dma.c.

void DMA_StructInit ( DMA_InitTypeDef *  DMA_InitStruct )

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

Definition at line 293 of file stm32f30x_dma.c.

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