DAC Peripheral Block Description

This block handles the digital-to-analog conversion (DAC) in STM microcontrollers.

DAC block

Inputs

Input Name	Type	Description
Value	uint16	Digital value to be converted into an analog signal.

Output Name	Type	Description
Status	uint8	Conversion status. Returns: `1` conversion succeeded `0` conversion failed

Parameter	Description
DAC number	The number of the DAC module. For MCUs with a single DAC module, this must be set to 0.
DAC Channel	The DAC channel number: `DAC_CHANNEL_1` - channel 1 `DAC_CHANNEL_2` - channel 2
DAC alignment	Data alignment method for conversion: `DAC_ALIGN_12B_R` - right alignment for 12-bit DAC `DAC_ALIGN_12B_L` - left alignment for 12-bit DAC `DAC_ALIGN_8B_R` - right alignment for 8-bit DAC
Sample time [s]	The sampling time for the DAC function.

Block parameters for DAC

No.	Name	Path	Setting	Description	Screenshot
1	Output Buffer	Pinout & Configuration > Analog > DAC* > Output Buffer	`Enabled` if needed	Enabling the output buffer for the DAC channel. When enabled, the DAC output has increased output current capability but may limit the full voltage range.
2	Trigger	Pinout & Configuration > Analog > DAC* > Trigger	`None`	Setting the DAC conversion trigger source. In this case, it is set to no trigger, which means the conversion is executed immediately after setting the value at the block input.

Interrupts for the DAC are not required.

DAC* - the asterisk (*) symbol represents the number of the DAC module used in the model, e.g., DAC1, DAC2 etc.

No.	Name	Path	Setting	Description	Screenshot
1	Output Buffer	Pinout & Configuration > Analog > DAC* > Output Buffer	`Enabled` if needed	Enabling the output buffer for the DAC channel. When enabled, the DAC output has increased output current capability but may limit the full voltage range.
2	Trigger	Pinout & Configuration > Analog > DAC* > Trigger	`None`	Setting the DAC conversion trigger source. In this case, it is set to no trigger, which means the conversion is executed immediately after setting the value at the block input.

Interrupts for the DAC are not required.

DAC* - the asterisk (*) symbol represents the number of the DAC module used in the model, e.g., DAC1, DAC2 etc.

No.	Name	Path	Setting	Description	Screenshot
1	Output Buffer	Pinout & Configuration > Analog > DAC* > Output Buffer	`Enabled` if needed	Enabling the output buffer for the DAC channel. When enabled, the DAC output has increased output current capability but may limit the full voltage range.
2	Trigger	Pinout & Configuration > Analog > DAC* > Trigger	`None`	Setting the DAC conversion trigger source. In this case, it is set to no trigger, which means the conversion is executed immediately after setting the value at the block input.

Interrupts for the DAC are not required.

DAC* - the asterisk (*) symbol represents the number of the DAC module used in the model, e.g., DAC1, DAC2 etc.