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DAC

Code generation emits one STM32DAC object for each DAC output channel enabled in CubeMX, with the initial output voltage and the reference voltage taken from libxr_config.yaml.

Example​

The generator reads each enabled DAC channel and emits code like:

static STM32DAC dac1_out2(&hdac1, DAC_CHANNEL_2, 0.0, 3.3);

Configuration File​

After the previous generation step, a DAC section appears in User/libxr_config.yaml:

DAC:
  dac1:
    init_voltage: 0.0
    vref: 3.3
  • init_voltage: initial output voltage
  • vref: reference voltage

Generation Rules​

  • each enabled output channel gets one object named <instance>_<channel>, such as dac1_out2;
  • DAC_OUTx is written as DAC_CHANNEL_x;
  • the constructor arguments come from DAC.<instance>.init_voltage (default 0.0) and DAC.<instance>.vref (default 3.3);
  • a DAC peripheral without enabled channels gets no object.

After editing the file, regenerate the code with the commands in Regenerating the Code.