Method run

examples/dac_triangle/dac_triangle.cpp:38–96

  public:

    void run() {

      /*
       * Set up Timer6 with an internal clock source and configured to be
       * in master mode with update as the trigger
       */

      Timer6<Timer6InternalClockFeature,TimerUpdateMasterFeature> timer;

      /*
       * Configure the timer with a reload value of 255 and no prescaler.
       */

      timer.initialiseTimeBase(255,0,TIM_CKD_DIV1,TIM_CounterMode_Up);

      /*
       * Declare a DAC type with 12 bit right-aligned data.
       */

      typedef Dac1<DacChannel112BitRightAlignmentFeature> MyDac;

      /*
       * Create the DAC parameters. The trigger for conversion will be timer 6's
       * trigger output and the wave generation mode is triangular.
       */

      MyDac::Parameters params;
      params.dac_trigger=DAC_Trigger_T6_TRGO;
      params.dac_waveGeneration=DAC_WaveGeneration_Triangle;
      params.dac_lfsrMaskOrTriangleAmplitude=DAC_TriangleAmplitude_1023;

      /*
       * Declare the DAC object
       */

      MyDac dac(params);

      /*
       * Set a base level of Vref/16. 4096 is the full 12 bit conversion value and that equals
       * an output of Vref. Therefore 4096/16 = 256 for a base level of Vref/16. The triangle
       * wave is added to this base value.
       */

      dac.write(256);

      /*
       * Enable the trigger output and then Start the timer. Each time the update event is
       * generated a DAC conversion is triggered.
       */

      timer.enableMasterFeature();
      timer.enablePeripheral();

      /*
       * Finished. It's all running in the background now.
       */

      for(;;);