STM32L443xx HAL User Manual
Functions
IO operation functions
DAC Exported Functions

IO operation functions. More...

Functions

HAL_StatusTypeDef HAL_DAC_Start (DAC_HandleTypeDef *hdac, uint32_t Channel)
 Enables DAC and starts conversion of channel.
HAL_StatusTypeDef HAL_DAC_Stop (DAC_HandleTypeDef *hdac, uint32_t Channel)
 Disables DAC and stop conversion of channel.
HAL_StatusTypeDef HAL_DAC_Start_DMA (DAC_HandleTypeDef *hdac, uint32_t Channel, uint32_t *pData, uint32_t Length, uint32_t Alignment)
 Enables DAC and starts conversion of channel.
HAL_StatusTypeDef HAL_DAC_Stop_DMA (DAC_HandleTypeDef *hdac, uint32_t Channel)
 Disables DAC and stop conversion of channel.
void HAL_DAC_IRQHandler (DAC_HandleTypeDef *hdac)
 Handles DAC interrupt request This function uses the interruption of DMA underrun.
HAL_StatusTypeDef HAL_DAC_SetValue (DAC_HandleTypeDef *hdac, uint32_t Channel, uint32_t Alignment, uint32_t Data)
 Set the specified data holding register value for DAC channel.
__weak void HAL_DAC_ConvCpltCallbackCh1 (DAC_HandleTypeDef *hdac)
 Conversion complete callback in non-blocking mode for Channel1.
__weak void HAL_DAC_ConvHalfCpltCallbackCh1 (DAC_HandleTypeDef *hdac)
 Conversion half DMA transfer callback in non-blocking mode for Channel1.
__weak void HAL_DAC_ErrorCallbackCh1 (DAC_HandleTypeDef *hdac)
 Error DAC callback for Channel1.
__weak void HAL_DAC_DMAUnderrunCallbackCh1 (DAC_HandleTypeDef *hdac)
 DMA underrun DAC callback for channel1.
HAL_StatusTypeDef HAL_DAC_RegisterCallback (DAC_HandleTypeDef *hdac, HAL_DAC_CallbackIDTypeDef CallbackID, pDAC_CallbackTypeDef pCallback)
 Register a User DAC Callback To be used instead of the weak (surcharged) predefined callback.
HAL_StatusTypeDef HAL_DAC_UnRegisterCallback (DAC_HandleTypeDef *hdac, HAL_DAC_CallbackIDTypeDef CallbackID)
 Unregister a User DAC Callback DAC Callback is redirected to the weak (surcharged) predefined callback.

Detailed Description

IO operation functions. 

  ==============================================================================
             ##### IO operation functions #####
  ==============================================================================
    [..]  This section provides functions allowing to:
      (+) Start conversion.
      (+) Stop conversion.
      (+) Start conversion and enable DMA transfer.
      (+) Stop conversion and disable DMA transfer.
      (+) Get result of conversion.

Function Documentation

void HAL_DAC_ConvCpltCallbackCh1 ( DAC_HandleTypeDef *  hdac)

Conversion complete callback in non-blocking mode for Channel1.

Parameters:
hdacpointer to a DAC_HandleTypeDef structure that contains the configuration information for the specified DAC.
Return values:
None

Definition at line 1067 of file stm32l4xx_hal_dac.c.

Referenced by DAC_DMAConvCpltCh1(), HAL_DAC_Init(), and HAL_DAC_UnRegisterCallback().

void HAL_DAC_ConvHalfCpltCallbackCh1 ( DAC_HandleTypeDef *  hdac)

Conversion half DMA transfer callback in non-blocking mode for Channel1.

Parameters:
hdacpointer to a DAC_HandleTypeDef structure that contains the configuration information for the specified DAC.
Return values:
None

Definition at line 1083 of file stm32l4xx_hal_dac.c.

Referenced by DAC_DMAHalfConvCpltCh1(), HAL_DAC_Init(), and HAL_DAC_UnRegisterCallback().

void HAL_DAC_DMAUnderrunCallbackCh1 ( DAC_HandleTypeDef *  hdac)

DMA underrun DAC callback for channel1.

Parameters:
hdacpointer to a DAC_HandleTypeDef structure that contains the configuration information for the specified DAC.
Return values:
None

Definition at line 1115 of file stm32l4xx_hal_dac.c.

Referenced by HAL_DAC_Init(), HAL_DAC_IRQHandler(), and HAL_DAC_UnRegisterCallback().

void HAL_DAC_ErrorCallbackCh1 ( DAC_HandleTypeDef *  hdac)

Error DAC callback for Channel1.

Parameters:
hdacpointer to a DAC_HandleTypeDef structure that contains the configuration information for the specified DAC.
Return values:
None

Definition at line 1099 of file stm32l4xx_hal_dac.c.

Referenced by DAC_DMAErrorCh1(), HAL_DAC_Init(), and HAL_DAC_UnRegisterCallback().

void HAL_DAC_IRQHandler ( DAC_HandleTypeDef *  hdac)

Handles DAC interrupt request This function uses the interruption of DMA underrun.

Parameters:
hdacpointer to a DAC_HandleTypeDef structure that contains the configuration information for the specified DAC.
Return values:
None

Definition at line 957 of file stm32l4xx_hal_dac.c.

References __HAL_DAC_CLEAR_FLAG, __HAL_DAC_GET_FLAG, __HAL_DAC_GET_IT_SOURCE, DAC_FLAG_DMAUDR1, DAC_FLAG_DMAUDR2, DAC_IT_DMAUDR1, DAC_IT_DMAUDR2, __DAC_HandleTypeDef::DMAUnderrunCallbackCh1, __DAC_HandleTypeDef::DMAUnderrunCallbackCh2, __DAC_HandleTypeDef::ErrorCode, HAL_DAC_DMAUnderrunCallbackCh1(), HAL_DAC_ERROR_DMAUNDERRUNCH1, HAL_DAC_ERROR_DMAUNDERRUNCH2, HAL_DAC_STATE_ERROR, HAL_DACEx_DMAUnderrunCallbackCh2(), __DAC_HandleTypeDef::Instance, and __DAC_HandleTypeDef::State.

HAL_StatusTypeDef HAL_DAC_RegisterCallback ( DAC_HandleTypeDef *  hdac,
HAL_DAC_CallbackIDTypeDef  CallbackID,
pDAC_CallbackTypeDef  pCallback 
)

Register a User DAC Callback To be used instead of the weak (surcharged) predefined callback.

Parameters:
hdacDAC handle
CallbackIDID of the callback to be registered This parameter can be one of the following values:
pCallbackpointer to the Callback function
Return values:
status

Definition at line 1459 of file stm32l4xx_hal_dac.c.

References __DAC_HandleTypeDef::ConvCpltCallbackCh1, __DAC_HandleTypeDef::ConvCpltCallbackCh2, __DAC_HandleTypeDef::ConvHalfCpltCallbackCh1, __DAC_HandleTypeDef::ConvHalfCpltCallbackCh2, __DAC_HandleTypeDef::DMAUnderrunCallbackCh1, __DAC_HandleTypeDef::DMAUnderrunCallbackCh2, __DAC_HandleTypeDef::ErrorCallbackCh1, __DAC_HandleTypeDef::ErrorCallbackCh2, __DAC_HandleTypeDef::ErrorCode, HAL_DAC_CH1_COMPLETE_CB_ID, HAL_DAC_CH1_ERROR_ID, HAL_DAC_CH1_HALF_COMPLETE_CB_ID, HAL_DAC_CH1_UNDERRUN_CB_ID, HAL_DAC_CH2_COMPLETE_CB_ID, HAL_DAC_CH2_ERROR_ID, HAL_DAC_CH2_HALF_COMPLETE_CB_ID, HAL_DAC_CH2_UNDERRUN_CB_ID, HAL_DAC_ERROR_INVALID_CALLBACK, HAL_DAC_MSPDEINIT_CB_ID, HAL_DAC_MSPINIT_CB_ID, HAL_DAC_STATE_READY, HAL_DAC_STATE_RESET, __DAC_HandleTypeDef::MspDeInitCallback, __DAC_HandleTypeDef::MspInitCallback, and __DAC_HandleTypeDef::State.

HAL_StatusTypeDef HAL_DAC_SetValue ( DAC_HandleTypeDef *  hdac,
uint32_t  Channel,
uint32_t  Alignment,
uint32_t  Data 
)

Set the specified data holding register value for DAC channel.

Parameters:
hdacpointer to a DAC_HandleTypeDef structure that contains the configuration information for the specified DAC.
ChannelThe selected DAC channel. This parameter can be one of the following values:
  • DAC_CHANNEL_1: DAC Channel1 selected
  • DAC_CHANNEL_2: DAC Channel2 selected
AlignmentSpecifies the data alignment. This parameter can be one of the following values:
  • DAC_ALIGN_8B_R: 8bit right data alignment selected
  • DAC_ALIGN_12B_L: 12bit left data alignment selected
  • DAC_ALIGN_12B_R: 12bit right data alignment selected
DataData to be loaded in the selected data holding register.
Return values:
HALstatus

Definition at line 1035 of file stm32l4xx_hal_dac.c.

References assert_param, DAC_CHANNEL_1, DAC_DHR12R1_ALIGNMENT, DAC_DHR12R2_ALIGNMENT, __DAC_HandleTypeDef::Instance, IS_DAC_ALIGN, IS_DAC_CHANNEL, and IS_DAC_DATA.

HAL_StatusTypeDef HAL_DAC_Start ( DAC_HandleTypeDef *  hdac,
uint32_t  Channel 
)

Enables DAC and starts conversion of channel.

Parameters:
hdacpointer to a DAC_HandleTypeDef structure that contains the configuration information for the specified DAC.
ChannelThe selected DAC channel. This parameter can be one of the following values:
  • DAC_CHANNEL_1: DAC Channel1 selected
  • DAC_CHANNEL_2: DAC Channel2 selected (when supported)
Return values:
HALstatus

Definition at line 549 of file stm32l4xx_hal_dac.c.

References __HAL_DAC_ENABLE, assert_param, DAC_CHANNEL_1, DAC_TRIGGER_SOFTWARE, HAL_DAC_STATE_BUSY, HAL_DAC_STATE_READY, __DAC_HandleTypeDef::Instance, IS_DAC_CHANNEL, and __DAC_HandleTypeDef::State.

HAL_StatusTypeDef HAL_DAC_Start_DMA ( DAC_HandleTypeDef *  hdac,
uint32_t  Channel,
uint32_t *  pData,
uint32_t  Length,
uint32_t  Alignment 
)

Enables DAC and starts conversion of channel.

Parameters:
hdacpointer to a DAC_HandleTypeDef structure that contains the configuration information for the specified DAC.
ChannelThe selected DAC channel. This parameter can be one of the following values:
  • DAC_CHANNEL_1: DAC Channel1 selected
  • DAC_CHANNEL_2: DAC Channel2 selected
pDataThe destination peripheral Buffer address.
LengthThe length of data to be transferred from memory to DAC peripheral
AlignmentSpecifies the data alignment for DAC channel. This parameter can be one of the following values:
  • DAC_ALIGN_8B_R: 8bit right data alignment selected
  • DAC_ALIGN_12B_L: 12bit left data alignment selected
  • DAC_ALIGN_12B_R: 12bit right data alignment selected
Return values:
HALstatus

Definition at line 763 of file stm32l4xx_hal_dac.c.

References __HAL_DAC_ENABLE, __HAL_DAC_ENABLE_IT, assert_param, DAC_ALIGN_12B_L, DAC_ALIGN_12B_R, DAC_ALIGN_8B_R, DAC_CHANNEL_1, DAC_DMAConvCpltCh1(), DAC_DMAConvCpltCh2(), DAC_DMAErrorCh1(), DAC_DMAErrorCh2(), DAC_DMAHalfConvCpltCh1(), DAC_DMAHalfConvCpltCh2(), DAC_IT_DMAUDR1, DAC_IT_DMAUDR2, __DAC_HandleTypeDef::DMA_Handle1, __DAC_HandleTypeDef::DMA_Handle2, __DAC_HandleTypeDef::ErrorCode, HAL_DAC_ERROR_DMA, HAL_DAC_STATE_BUSY, HAL_DMA_Start_IT(), __DAC_HandleTypeDef::Instance, IS_DAC_ALIGN, IS_DAC_CHANNEL, __DAC_HandleTypeDef::State, __DMA_HandleTypeDef::XferCpltCallback, __DMA_HandleTypeDef::XferErrorCallback, and __DMA_HandleTypeDef::XferHalfCpltCallback.

HAL_StatusTypeDef HAL_DAC_Stop ( DAC_HandleTypeDef *  hdac,
uint32_t  Channel 
)

Disables DAC and stop conversion of channel.

Parameters:
hdacpointer to a DAC_HandleTypeDef structure that contains the configuration information for the specified DAC.
ChannelThe selected DAC channel. This parameter can be one of the following values:
  • DAC_CHANNEL_1: DAC Channel1 selected
  • DAC_CHANNEL_2: DAC Channel2 selected
Return values:
HALstatus

Definition at line 637 of file stm32l4xx_hal_dac.c.

References __HAL_DAC_DISABLE, assert_param, HAL_DAC_STATE_READY, IS_DAC_CHANNEL, and __DAC_HandleTypeDef::State.

HAL_StatusTypeDef HAL_DAC_Stop_DMA ( DAC_HandleTypeDef *  hdac,
uint32_t  Channel 
)

Disables DAC and stop conversion of channel.

Parameters:
hdacpointer to a DAC_HandleTypeDef structure that contains the configuration information for the specified DAC.
ChannelThe selected DAC channel. This parameter can be one of the following values:
  • DAC_CHANNEL_1: DAC Channel1 selected
  • DAC_CHANNEL_2: DAC Channel2 selected
Return values:
HALstatus

Definition at line 895 of file stm32l4xx_hal_dac.c.

References __HAL_DAC_DISABLE, __HAL_DAC_DISABLE_IT, assert_param, DAC_CHANNEL_1, DAC_IT_DMAUDR1, DAC_IT_DMAUDR2, __DAC_HandleTypeDef::DMA_Handle1, __DAC_HandleTypeDef::DMA_Handle2, HAL_DMA_Abort(), __DAC_HandleTypeDef::Instance, and IS_DAC_CHANNEL.

HAL_StatusTypeDef HAL_DAC_UnRegisterCallback ( DAC_HandleTypeDef *  hdac,
HAL_DAC_CallbackIDTypeDef  CallbackID 
)

Unregister a User DAC Callback DAC Callback is redirected to the weak (surcharged) predefined callback.

Parameters:
hdacDAC handle
CallbackIDID of the callback to be unregistered This parameter can be one of the following values:
Return values:
status

Definition at line 1566 of file stm32l4xx_hal_dac.c.

References __DAC_HandleTypeDef::ConvCpltCallbackCh1, __DAC_HandleTypeDef::ConvCpltCallbackCh2, __DAC_HandleTypeDef::ConvHalfCpltCallbackCh1, __DAC_HandleTypeDef::ConvHalfCpltCallbackCh2, __DAC_HandleTypeDef::DMAUnderrunCallbackCh1, __DAC_HandleTypeDef::DMAUnderrunCallbackCh2, __DAC_HandleTypeDef::ErrorCallbackCh1, __DAC_HandleTypeDef::ErrorCallbackCh2, __DAC_HandleTypeDef::ErrorCode, HAL_DAC_ALL_CB_ID, HAL_DAC_CH1_COMPLETE_CB_ID, HAL_DAC_CH1_ERROR_ID, HAL_DAC_CH1_HALF_COMPLETE_CB_ID, HAL_DAC_CH1_UNDERRUN_CB_ID, HAL_DAC_CH2_COMPLETE_CB_ID, HAL_DAC_CH2_ERROR_ID, HAL_DAC_CH2_HALF_COMPLETE_CB_ID, HAL_DAC_CH2_UNDERRUN_CB_ID, HAL_DAC_ConvCpltCallbackCh1(), HAL_DAC_ConvHalfCpltCallbackCh1(), HAL_DAC_DMAUnderrunCallbackCh1(), HAL_DAC_ERROR_INVALID_CALLBACK, HAL_DAC_ErrorCallbackCh1(), HAL_DAC_MspDeInit(), HAL_DAC_MSPDEINIT_CB_ID, HAL_DAC_MspInit(), HAL_DAC_MSPINIT_CB_ID, HAL_DAC_STATE_READY, HAL_DAC_STATE_RESET, HAL_DACEx_ConvCpltCallbackCh2(), HAL_DACEx_ConvHalfCpltCallbackCh2(), HAL_DACEx_DMAUnderrunCallbackCh2(), HAL_DACEx_ErrorCallbackCh2(), __DAC_HandleTypeDef::MspDeInitCallback, __DAC_HandleTypeDef::MspInitCallback, and __DAC_HandleTypeDef::State.

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