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What is the resolution of Timer/Counter0 when the CPU frequency is set to 16MHz and the following code is used for configuration of prescaler:TCCR0B |= (1<<CS02);Give your answer in microseconds (us).

Question

What is the resolution of Timer/Counter0 when the CPU frequency is set to 16MHz and the following code is used for configuration of prescaler:TCCR0B |= (1<<CS02);Give your answer in microseconds (us).

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Solution

Para resolver esta pregunta, sigamos los siguientes pasos:

  1. Identificar la frecuencia del CPU: La frecuencia del CPU es de 16 MHz (16,000,000 Hz).

  2. Determinar el valor del prescaler: El código TCCR0B |= (1<<CS02); configura el prescaler del Timer/Counter0. Según la hoja de datos del microcontrolador (por ejemplo, ATmega328P), el bit CS02 corresponde a un prescaler de 256.

  3. Calcular la frecuencia del Timer/Counter0: La frecuencia del Timer/Counter0 se obtiene dividiendo la frecuencia del CPU por el valor del prescaler. Frecuencia del Timer/Counter0=Frecuencia del CPUPrescaler=16,000,000 Hz256=62,500 Hz \text{Frecuencia del Timer/Counter0} = \frac{\text{Frecuencia del CPU}}{\text{Prescaler}} = \frac{16,000,000 \text{ Hz}}{256} = 62,500 \text{ Hz}

  4. Calcular el período del Timer/Counter0: El período es el inverso de la frecuencia. Perıˊodo del Timer/Counter0=1Frecuencia del Timer/Counter0=162,500 Hz=16 microsegundos \text{Período del Timer/Counter0} = \frac{1}{\text{Frecuencia del Timer/Counter0}} = \frac{1}{62,500 \text{ Hz}} = 16 \text{ microsegundos}

Por lo tanto, la resolución de Timer/Counter0 con la configuración dada es de 16 microsegundos (us).

This problem has been solved

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