Slow code needs a tune up

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  1. - 5th January 2010, 14:41 #1
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    Acetronics2
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    Talking method problem ...

    One good reason could be the 2 DIV32 INSIDE the test loop ...

    I measured once DIV32 took ~ 700µs ...

    this is at least one very good reason for the PULSIN way to show a false result on the scope ... despite calculated RPM value to be right.

    Alain
    ************************************************** ***********************
    Why insist on using 32 Bits when you're not even able to deal with the first 8 ones ??? ehhhhhh ...
    ************************************************** ***********************
    IF there is the word "Problem" in your question ...
    certainly the answer is " RTFM " or " RTFDataSheet " !!!
    *****************************************
  2. - 5th January 2010, 15:23 #2
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    Acetronics2
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    Question

    With some little reflexion ....

    I'd ask you to scope the signal you use from your gadget ...

    Is it really a nice symmetrical square wave ???

    Alain
    ************************************************** ***********************
    Why insist on using 32 Bits when you're not even able to deal with the first 8 ones ??? ehhhhhh ...
    ************************************************** ***********************
    IF there is the word "Problem" in your question ...
    certainly the answer is " RTFM " or " RTFDataSheet " !!!
    *****************************************
  3. - 5th January 2010, 16:05 #3
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    Its not a perfect function generator type square wave for sure. My scope has a USB output on it. This will be a good reason to learn how to send screen shots to my laptop. I will work on that tonite.
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