Using DAC on STM32

Using Digital to Analog Converter on STM32

GPIO Configuration

The DAC module does not require much config. Enable the peripheral and configure the output to the desired pins.

Start the DAC

HAL_DAC_Start(&hdac, DAC_CHANNEL_1);

Update DAC value

HAL_DAC_SetValue(&hdac, DAC_CHANNEL_1, DAC_ALIGN_8B_R, 100);

Example program

an example program to generate triangle wave on output.

void APP_init() {
  HAL_DAC_Start(&hdac, DAC_CHANNEL_1);

  uint8_t value = 0;
  while (1) {
    HAL_DAC_SetValue(&hdac, DAC_CHANNEL_1, DAC_ALIGN_8B_R, value);
    value += 1;
  }
}