Functions

Initialization and Configuration functions. More...

Collaboration diagram for Initialization and Configuration functions:

Functions

void DMA_Cmd (DMA_Channel_TypeDef *DMAy_Channelx, FunctionalState NewState)
 Enables or disables the specified DMAy Channelx. More...
 
void DMA_Cmd (DMA_Stream_TypeDef *DMAy_Streamx, FunctionalState NewState)
 Enables or disables the specified DMAy Streamx. More...
 
void DMA_DeInit (DMA_Channel_TypeDef *DMAy_Channelx)
 Deinitializes the DMAy Channelx registers to their default reset values. More...
 
void DMA_DeInit (DMA_Stream_TypeDef *DMAy_Streamx)
 Deinitialize the DMAy Streamx registers to their default reset values. More...
 
void DMA_FlowControllerConfig (DMA_Stream_TypeDef *DMAy_Streamx, uint32_t DMA_FlowCtrl)
 Configures, when the DMAy Streamx is disabled, the flow controller for the next transactions (Peripheral or Memory). More...
 
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. More...
 
void DMA_Init (DMA_Stream_TypeDef *DMAy_Streamx, DMA_InitTypeDef *DMA_InitStruct)
 Initializes the DMAy Streamx according to the specified parameters in the DMA_InitStruct structure. More...
 
void DMA_PeriphIncOffsetSizeConfig (DMA_Stream_TypeDef *DMAy_Streamx, uint32_t DMA_Pincos)
 Configures, when the PINC (Peripheral Increment address mode) bit is set, if the peripheral address should be incremented with the data size (configured with PSIZE bits) or by a fixed offset equal to 4 (32-bit aligned addresses). More...
 
void DMA_StructInit (DMA_InitTypeDef *DMA_InitStruct)
 Fills each DMA_InitStruct member with its default value. More...
 

Detailed Description

Initialization and Configuration functions.

 ===============================================================================
                ##### Initialization and Configuration functions #####
 ===============================================================================  
    [..]
    This subsection provides functions allowing to initialize the DMA Stream source
    and destination addresses, incrementation and data sizes, transfer direction, 
    buffer size, circular/normal mode selection, memory-to-memory mode selection 
    and Stream priority value.
    [..]
    The DMA_Init() function follows the DMA configuration procedures as described in
    reference manual (RM0090) except the first point: waiting on EN bit to be reset.
    This condition should be checked by user application using the function DMA_GetCmdStatus()
    before calling the DMA_Init() function.
 ===============================================================================
              ##### 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_Channelxwhere 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.
NewStatenew 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_Cmd ( DMA_Stream_TypeDef DMAy_Streamx,
FunctionalState  NewState 
)

Enables or disables the specified DMAy Streamx.

Parameters
DMAy_Streamxwhere y can be 1 or 2 to select the DMA and x can be 0 to 7 to select the DMA Stream.
NewStatenew state of the DMAy Streamx. This parameter can be: ENABLE or DISABLE.
Note
This function may be used to perform Pause-Resume operation. When a transfer is ongoing, calling this function to disable the Stream will cause the transfer to be paused. All configuration registers and the number of remaining data will be preserved. When calling again this function to re-enable the Stream, the transfer will be resumed from the point where it was paused.
After configuring the DMA Stream (DMA_Init() function) and enabling the stream, it is recommended to check (or wait until) the DMA Stream is effectively enabled. A Stream may remain disabled if a configuration parameter is wrong. After disabling a DMA Stream, it is also recommended to check (or wait until) the DMA Stream is effectively disabled. If a Stream is disabled while a data transfer is ongoing, the current data will be transferred and the Stream will be effectively disabled only after the transfer of this single data is finished.
Return values
None

Definition at line 478 of file stm32f4xx_dma.c.

void DMA_DeInit ( DMA_Channel_TypeDef DMAy_Channelx)

Deinitializes the DMAy Channelx registers to their default reset values.

Parameters
DMAy_Channelxwhere 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_DeInit ( DMA_Stream_TypeDef DMAy_Streamx)

Deinitialize the DMAy Streamx registers to their default reset values.

Parameters
DMAy_Streamxwhere y can be 1 or 2 to select the DMA and x can be 0 to 7 to select the DMA Stream.
Return values
None

Definition at line 196 of file stm32f4xx_dma.c.

void DMA_FlowControllerConfig ( DMA_Stream_TypeDef DMAy_Streamx,
uint32_t  DMA_FlowCtrl 
)

Configures, when the DMAy Streamx is disabled, the flow controller for the next transactions (Peripheral or Memory).

Note
Before enabling this feature, check if the used peripheral supports the Flow Controller mode or not.
Parameters
DMAy_Streamxwhere y can be 1 or 2 to select the DMA and x can be 0 to 7 to select the DMA Stream.
DMA_FlowCtrlspecifies the DMA flow controller. This parameter can be one of the following values:
  • DMA_FlowCtrl_Memory: DMAy_Streamx transactions flow controller is the DMA controller.
  • DMA_FlowCtrl_Peripheral: DMAy_Streamx transactions flow controller is the peripheral.
Return values
None

Definition at line 550 of file stm32f4xx_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_Channelxwhere 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_InitStructpointer 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_Init ( DMA_Stream_TypeDef DMAy_Streamx,
DMA_InitTypeDef DMA_InitStruct 
)

Initializes the DMAy Streamx according to the specified parameters in the DMA_InitStruct structure.

Note
Before calling this function, it is recommended to check that the Stream is actually disabled using the function DMA_GetCmdStatus().
Parameters
DMAy_Streamxwhere y can be 1 or 2 to select the DMA and x can be 0 to 7 to select the DMA Stream.
DMA_InitStructpointer to a DMA_InitTypeDef structure that contains the configuration information for the specified DMA Stream.
Return values
None

Definition at line 319 of file stm32f4xx_dma.c.

void DMA_PeriphIncOffsetSizeConfig ( DMA_Stream_TypeDef DMAy_Streamx,
uint32_t  DMA_Pincos 
)

Configures, when the PINC (Peripheral Increment address mode) bit is set, if the peripheral address should be incremented with the data size (configured with PSIZE bits) or by a fixed offset equal to 4 (32-bit aligned addresses).

Note
This function has no effect if the Peripheral Increment mode is disabled.
Parameters
DMAy_Streamxwhere y can be 1 or 2 to select the DMA and x can be 0 to 7 to select the DMA Stream.
DMA_Pincosspecifies the Peripheral increment offset size. This parameter can be one of the following values:
  • DMA_PINCOS_Psize: Peripheral address increment is done accordingly to PSIZE parameter.
  • DMA_PINCOS_WordAligned: Peripheral address increment offset is fixed to 4 (32-bit aligned addresses).
Return values
None

Definition at line 514 of file stm32f4xx_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
Parameters
DMA_InitStructpointer to a DMA_InitTypeDef structure which will be initialized.
Return values
None

Definition at line 403 of file stm32f4xx_dma.c.



rosflight_firmware
Author(s): Daniel Koch , James Jackson
autogenerated on Thu Oct 24 2019 03:17:22