Assume we are required to generate a sinusoidal waveform of 293.665 Hz (music tone D), and the DAC converter is triggered by TIM4 TRGO with a frequency of 44,100Hz.
a. How many DAC outputs should we produce during one cycle of the sinusoidal waveform?
b. The angle of the sine function should increase from 0° to 360° to complete one cycle of the sinusoidal waveform. How many degrees should the angle variable be increased in timer interrupt handler each time?