Question

It is desired to design an oscillator using a PWM component within PSoC 5LP. Assume that the

design requires an oscillator frequency of 56KHz and a duty cycle of 25%, using a clock frequency of 1MHz.
Answer the following questions.

In the configuration window for the PWM component, determine the value for Period and the CMP Value 1. (Note that these values need to be integers).

Answer 1

To design an oscillator with a PWM component in PSoC 5LP, set the period to 17.857 µs and the CMP Value 1 to 4.464 µs.

Step-by-step explanation:

In order to design an oscillator using a PWM component within PSoC 5LP with a frequency of 56 KHz and a duty cycle of 25%, we need to determine the values for Period and CMP Value 1.

The period (T) can be calculated using the formula T = 1/f, where f is the desired frequency. In this case, the frequency is 56 KHz (or 56,000 Hz), so the period is 1/56,000 = 17.857 µs.

Now, to calculate the CMP Value 1, we need to consider the duty cycle. The CMP Value 1 is the proportion of the period for which the PWM signal is high. Since the duty cycle is 25%, the CMP Value 1 can be calculated as 0.25 * Period = 0.25 * 17.857 µs = 4.464 µs.