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Macros
DMA Exported Macros
STM32F3xx_HAL_Driver » DMA

Macros

#define __HAL_DMA_RESET_HANDLE_STATE(__HANDLE__)   ((__HANDLE__)->State = HAL_DMA_STATE_RESET)
 Reset DMA handle state.
 
#define __HAL_DMA_ENABLE(__HANDLE__)   ((__HANDLE__)->Instance->CCR |= DMA_CCR_EN)
 Enable the specified DMA Channel.
 
#define __HAL_DMA_DISABLE(__HANDLE__)   ((__HANDLE__)->Instance->CCR &= ~DMA_CCR_EN)
 Disable the specified DMA Channel.
 
#define __HAL_DMA_ENABLE_IT(__HANDLE__, __INTERRUPT__)   ((__HANDLE__)->Instance->CCR |= (__INTERRUPT__))
 Enables the specified DMA Channel interrupts.
 
#define __HAL_DMA_DISABLE_IT(__HANDLE__, __INTERRUPT__)   ((__HANDLE__)->Instance->CCR &= ~(__INTERRUPT__))
 Disables the specified DMA Channel interrupts.
 
#define __HAL_DMA_GET_IT_SOURCE(__HANDLE__, __INTERRUPT__)   (((__HANDLE__)->Instance->CCR & (__INTERRUPT__)))
 Checks whether the specified DMA Channel interrupt is enabled or disabled.
 
#define __HAL_DMA_GET_COUNTER(__HANDLE__)   ((__HANDLE__)->Instance->CNDTR)
 Returns the number of remaining data units in the current DMAy Channelx transfer.
 

Detailed Description

Macro Definition Documentation

◆ __HAL_DMA_DISABLE

#define __HAL_DMA_DISABLE (   __HANDLE__)    ((__HANDLE__)->Instance->CCR &= ~DMA_CCR_EN)

Disable the specified DMA Channel.

Parameters
__HANDLE__DMA handle
Return values
None

◆ __HAL_DMA_DISABLE_IT

#define __HAL_DMA_DISABLE_IT (   __HANDLE__,
  __INTERRUPT__ 
)    ((__HANDLE__)->Instance->CCR &= ~(__INTERRUPT__))

Disables the specified DMA Channel interrupts.

Parameters
__HANDLE__DMA handle
__INTERRUPT__specifies the DMA interrupt sources to be enabled or disabled. This parameter can be any combination of the following values:
  • DMA_IT_TC: Transfer complete interrupt mask
  • DMA_IT_HT: Half transfer complete interrupt mask
  • DMA_IT_TE: Transfer error interrupt mask
Return values
None

◆ __HAL_DMA_ENABLE

#define __HAL_DMA_ENABLE (   __HANDLE__)    ((__HANDLE__)->Instance->CCR |= DMA_CCR_EN)

Enable the specified DMA Channel.

Parameters
__HANDLE__DMA handle
Return values
None

◆ __HAL_DMA_ENABLE_IT

#define __HAL_DMA_ENABLE_IT (   __HANDLE__,
  __INTERRUPT__ 
)    ((__HANDLE__)->Instance->CCR |= (__INTERRUPT__))

Enables the specified DMA Channel interrupts.

Parameters
__HANDLE__DMA handle
__INTERRUPT__specifies the DMA interrupt sources to be enabled or disabled. This parameter can be any combination of the following values:
  • DMA_IT_TC: Transfer complete interrupt mask
  • DMA_IT_HT: Half transfer complete interrupt mask
  • DMA_IT_TE: Transfer error interrupt mask
Return values
None

◆ __HAL_DMA_GET_COUNTER

#define __HAL_DMA_GET_COUNTER (   __HANDLE__)    ((__HANDLE__)->Instance->CNDTR)

Returns the number of remaining data units in the current DMAy Channelx transfer.

Parameters
__HANDLE__DMA handle
Return values
Thenumber of remaining data units in the current DMA Channel transfer.

◆ __HAL_DMA_GET_IT_SOURCE

#define __HAL_DMA_GET_IT_SOURCE (   __HANDLE__,
  __INTERRUPT__ 
)    (((__HANDLE__)->Instance->CCR & (__INTERRUPT__)))

Checks whether the specified DMA Channel interrupt is enabled or disabled.

Parameters
__HANDLE__DMA handle
__INTERRUPT__specifies the DMA interrupt source to check. This parameter can be one of the following values:
  • DMA_IT_TC: Transfer complete interrupt mask
  • DMA_IT_HT: Half transfer complete interrupt mask
  • DMA_IT_TE: Transfer error interrupt mask
Return values
Thestate of DMA_IT (SET or RESET).

◆ __HAL_DMA_RESET_HANDLE_STATE

#define __HAL_DMA_RESET_HANDLE_STATE (   __HANDLE__)    ((__HANDLE__)->State = HAL_DMA_STATE_RESET)

Reset DMA handle state.

Parameters
__HANDLE__DMA handle.
Return values
None