Hal Dac Extension Driver; Dacex Firmware Driver Api Description; Hal_Dacex_Dualgetvalue; Hal_Dacex_Trianglewavegenerate - ST STM32F2 User Manual

UM1940
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HAL DAC Extension Driver

13.1

DACEx Firmware driver API description

13.1.1

How to use this driver

When Dual mode is enabled (i.e DAC Channel1 and Channel2 are used
simultaneously) : Use HAL_DACEx_DualGetValue() to get digital data to be converted
and use HAL_DACEx_DualSetValue() to set digital value to converted simultaneously
in Channel 1 and Channel 2.
Use HAL_DACEx_TriangleWaveGenerate() to generate Triangle signal.
Use HAL_DACEx_NoiseWaveGenerate() to generate Noise signal.
13.1.2

Extended features 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.
Get result of dual mode conversion.
This section contains the following APIs:

HAL_DACEx_DualGetValue()

HAL_DACEx_TriangleWaveGenerate()

HAL_DACEx_NoiseWaveGenerate()
HAL_DACEx_DualSetValue()
HAL_DACEx_ConvCpltCallbackCh2()
HAL_DACEx_ConvHalfCpltCallbackCh2()
HAL_DACEx_ErrorCallbackCh2()
HAL_DACEx_DMAUnderrunCallbackCh2()
13.1.3

Detailed description of functions

HAL_DACEx_DualGetValue
Function name
Function description
Parameters
Return values
HAL_DACEx_TriangleWaveGenerate
Function name
uint32_t HAL_DACEx_DualGetValue (DAC_HandleTypeDef *
hdac)
Returns the last data output value of the selected DAC channel.
hdac: pointer to a DAC_HandleTypeDef structure that
contains the configuration information for the specified DAC.
The: selected DAC channel data output value.
HAL_StatusTypeDef HAL_DACEx_TriangleWaveGenerate
(DAC_HandleTypeDef * hdac, uint32_t Channel, uint32_t
Amplitude)
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