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3. What is the lowest frequency that can be generated using Timer1 if the crystal frequency...


3. What is the lowest frequency that can be generated using Timer1 if the crystal frequency is 10 MHz? Show your calculation.
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Answer #1

Timer frequency can be calculated for the given crystal frequency by using the below formula

Freq_time=( Freq_cryst/(4*prescalar *resolution))

To calculate the Lowest frequency we need to consider the maximum prescalar which is 1:8 and value of resolution is 65536 since Timer1 is 16 bit and given that Freq_cryst=10 MHz

By substituting in the above formula

Freq_timer = (10000000)/(4 * 8 * 65536)

= 4.76 Hz

This is the lowest frequency that can be generated using Timer1 for the given crystal frequency of 10 Hz

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