Need some advice.


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  1. #1
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    my interup seems to work fine it just that the owin owout commands seem to really take alot of time and the interupts are missed in the process. i'll try to draw up a schematic.

  2. #2
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    here is a quick diagram, I know thats not a moc3021

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    here abit smaller
    Attached Images Attached Images  

  4. #4
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    Quote Originally Posted by cphillips82 View Post
    my interup seems to work fine it just that the owin owout commands seem to really take alot of time and the interupts are missed in the process. i'll try to draw up a schematic.
    This is why i've suggested to use Darrel's instant interrupts
    Steve

    It's not a bug, it's a random feature.
    There's no problem, only learning opportunities.

  5. #5
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    Talking Why making it simple ???

    Hi,

    The MOC 3041 ( and not 3021 ...) permitted to avoid all the zero detection AND the interrupts ...

    burst mode is really not a problem with heating systems ...

    Alain
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    Why insist on using 32 Bits when you're not even able to deal with the first 8 ones ??? ehhhhhh ...
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    IF there is the word "Problem" in your question ...
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  6. #6
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    Angry

    not too sure what you mean "burst mode" is that like on 1 sec off 4 secon = 20% heat?. I'll try instant interupt but I'm a little affraid of asm..... I hate it!

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    and let the fun begin! can somebody tell me what error: variable wsave3 request 416 beyond ram_end 79 means? I have 3 errors like this in my first attempt at compiling. I installed mpasm and the include files for instant interupt.

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    Quote Originally Posted by cphillips82 View Post
    not too sure what you mean "burst mode" is that like on 1 sec off 4 secon = 20% heat?. I'll try instant interupt but I'm a little affraid of asm..... I hate it!
    Hi,

    this is it ... in the end BUT, exactly ... the half waves are "full" , THANKS to the MOC 3041.

    for your example you will have 100 half waves ON ( always an integer ! ) @ 50 Hz = 1s followed by 400 "half waves OFF" @ 50 Hz = 4 sec ...


    as the DS1820 needs ~ 750 ms for conversion, just fix your regulator period to 1 sec ( in your example .2sec ON and .8 sec OFF ) and you'll have a .5% resolution in power ...

    far more than you need ... but very easy for your regulating soft calculations.

    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 " !!!
    *****************************************

  9. #9
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    Why not just skip the busy state of the temp conversation??

    If the temp conversation is in progress, do not wait, just pass it.
    "If the Earth were a single state, Istanbul would be its capital." Napoleon Bonaparte

  10. #10
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    Wink

    Hi, Sayzer


    WHILE temp conversion ...

    REGULATOR loops ...

    of course !

    just have to verify that the Process time. constant is 10 times or more the sensor time constant ...

    If you want it to look at, I committed sometimes ago a DS 1820 temp regulator : a R/C servo drives air flow section to cool some heating stuff ...

    Let's say it is intended to control the air flaps of a model "Corsair F4U " engine cowling ...

    Alain
    Last edited by Acetronics2; - 30th April 2008 at 12:45.
    ************************************************** ***********************
    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 " !!!
    *****************************************

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