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Jon Titus
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Re: Introduction: Fundamentals of Designing With Microcontrollers
Jon Titus   1/16/2012 6:43:54 PM
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Q: Question for Slide 14: What are typical maximum intervals for timers? µs, ms, s, min?

A:  You determine the intervals by the clock source you select. Most MCUs use the system clock and divide it by a value you set, likely a power of 2; that is, divide by 2, 4, 8, 16, etc.  You can use an internal timer to click every 1 msec, for example, and then every time the timer ticks over, increment a counter. Then after 10,000 counts you have a 10-second period.  The timers and counters are very flexible.



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