Martin Johnson / STM32F3-Discovery

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Interrupts and flags management functions
Functions

Interrupts and flags management functions
[DAC_Private_Functions]

Interrupts and flags management functions. More...

Functions

void DAC_ITConfig (DAC_TypeDef *DACx, uint32_t DAC_Channel, uint32_t DAC_IT, FunctionalState NewState)
 Enables or disables the specified DAC interrupts.
FlagStatus DAC_GetFlagStatus (DAC_TypeDef *DACx, uint32_t DAC_Channel, uint32_t DAC_FLAG)
 Checks whether the specified DAC flag is set or not.
void DAC_ClearFlag (DAC_TypeDef *DACx, uint32_t DAC_Channel, uint32_t DAC_FLAG)
 Clears the DAC channel's pending flags.
ITStatus DAC_GetITStatus (DAC_TypeDef *DACx, uint32_t DAC_Channel, uint32_t DAC_IT)
 Checks whether the specified DAC interrupt has occurred or not.
void DAC_ClearITPendingBit (DAC_TypeDef *DACx, uint32_t DAC_Channel, uint32_t DAC_IT)
 Clears the DAC channel's interrupt pending bits.

Detailed Description

Interrupts and flags management functions. 

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            ##### Interrupts and flags management functions #####
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Function Documentation

void DAC_ClearFlag ( DAC_TypeDef *  DACx,
uint32_t  DAC_Channel,
uint32_t  DAC_FLAG 
)

Clears the DAC channel's pending flags.

Parameters:
DACx,:where x can be 1 or 2 to select the DAC peripheral.
DAC_Channel,:the selected DAC channel. This parameter can be one of the following values:

  • DAC_Channel_1: DAC Channel1 selected
  • DAC_Channel_2: DAC Channel2 selected
DAC_FLAG,:specifies the flag to clear. This parameter can be:

  • DAC_FLAG_DMAUDR: DMA underrun flag
Return values:
None

Definition at line 661 of file stm32f30x_dac.c.

void DAC_ClearITPendingBit ( DAC_TypeDef *  DACx,
uint32_t  DAC_Channel,
uint32_t  DAC_IT 
)

Clears the DAC channel's interrupt pending bits.

Parameters:
DACx,:where x can be 1 or 2 to select the DAC peripheral.
DAC_Channel,:the selected DAC channel. This parameter can be one of the following values:

  • DAC_Channel_1: DAC Channel1 selected
  • DAC_Channel_2: DAC Channel2 selected
DAC_IT,:specifies the DAC interrupt pending bit to clear. This parameter can be the following values:

  • DAC_IT_DMAUDR: DMA underrun interrupt mask
Return values:
None

Definition at line 726 of file stm32f30x_dac.c.

FlagStatus DAC_GetFlagStatus ( DAC_TypeDef *  DACx,
uint32_t  DAC_Channel,
uint32_t  DAC_FLAG 
)

Checks whether the specified DAC flag is set or not.

Parameters:
DACx,:where x can be 1 or 2 to select the DAC peripheral.
DAC_Channel,:thee selected DAC channel. This parameter can be one of the following values:

  • DAC_Channel_1: DAC Channel1 selected
  • DAC_Channel_2: DAC Channel2 selected
DAC_FLAG,:specifies the flag to check. This parameter can be:

  • DAC_FLAG_DMAUDR: DMA underrun flag
Note:
The DMA underrun occurs when a second external trigger arrives before the acknowledgement for the first external trigger is received (first request).
Return values:
Thenew state of DAC_FLAG (SET or RESET).

Definition at line 625 of file stm32f30x_dac.c.

ITStatus DAC_GetITStatus ( DAC_TypeDef *  DACx,
uint32_t  DAC_Channel,
uint32_t  DAC_IT 
)

Checks whether the specified DAC interrupt has occurred or not.

Parameters:
DACx,:where x can be 1 or 2 to select the DAC peripheral.
DAC_Channel,:the selected DAC channel. This parameter can be one of the following values:

  • DAC_Channel_1: DAC Channel1 selected
  • DAC_Channel_2: DAC Channel2 selected
DAC_IT,:specifies the DAC interrupt source to check. This parameter can be:

  • DAC_IT_DMAUDR: DMA underrun interrupt mask
Note:
The DMA underrun occurs when a second external trigger arrives before the acknowledgement for the first external trigger is received (first request).
Return values:
Thenew state of DAC_IT (SET or RESET).

Definition at line 686 of file stm32f30x_dac.c.

void DAC_ITConfig ( DAC_TypeDef *  DACx,
uint32_t  DAC_Channel,
uint32_t  DAC_IT,
FunctionalState  NewState 
)

Enables or disables the specified DAC interrupts.

Parameters:
DACx,:where x can be 1 or 2 to select the DAC peripheral.
DAC_Channel,:the selected DAC channel. This parameter can be one of the following values:

  • DAC_Channel_1: DAC Channel1 selected
  • DAC_Channel_2: DAC Channel2 selected
DAC_IT,:specifies the DAC interrupt sources to be enabled or disabled. This parameter can be:

  • DAC_IT_DMAUDR: DMA underrun interrupt mask
Note:
The DMA underrun occurs when a second external trigger arrives before the acknowledgement for the first external trigger is received (first request).
Parameters:
NewState,:new state of the specified DAC interrupts. This parameter can be: ENABLE or DISABLE.
Return values:
None

Definition at line 591 of file stm32f30x_dac.c.

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