System clock is 16Mhz Prescalars divide by 4 16 or 64 Compar

System clock is 16Mhz. Prescalars divide by 4, 16, or 64. Compare register is 16 bits.

Generate as close to 7.392 millisecond interrupts as possible - what is the time resolution of the answer?

Solution

Answer

Per clock tick as per the prescalar = 4/16, 16/ 16 and 64/16 = 0.25, 1 and 4 milliseconds

so, the number of ticks required to generate an interrupt of 7.392 ms as per the prescalars is 7.392/0.25, 7.392/1 and 7.392/4 = 29.568, 7.392 and 1.848 = 30, 7 and 2

You can choose any of the above resolution as per you requirement.