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Conversion to 8.68us units

  1. Sep 24, 2010 #1
    Hi all,

    I'm running a microcontroller that has me program times in 8.68microsecond units, and I'm having an issue converting 10ms to 8.68us units, then counting a number (scalar) then taking that number and getting RPMs from it.

    Here's what I have so far:

    10ms = 10,000us

    10,000us/8.68 ~ 1152 (8.68us units) --> Is this right?

    The program counts a number of pulses for 10ms, and returns that value, for example, in 10ms at 6,000 RPM I should see

    6,000RPM = 100R/s (Hz) = 1R/10ms = 1 pulse

    Then I want to convert from the one pulse back up to RPMs, so I need a scalar, I guess 6000 would be correct across all RPMs?

    I feel like I've made a mistake here somewhere, but have I done this correctly?
  2. jcsd
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