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Thread: KFLOP & Mach3: Configure STEP PER

  1. #13
    Member TomKerekes's Avatar
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    Default Re: KFLOP & Mach3: Configure STEP PER

    This line:
    FPGA(STEP_PULSE_LENGTH_ADD) = 32 + 0x80;

    is setting the step pulse width to 32 / 16.67 MHz = 1.92us

    At high speed (step rates) shorter pulses are needed in order to have some time between pulses. It seems you are using 150000 steps/sec which is a period 6.7us so the pulse width should probably be kept shorter than about half of that.

    Regards
    TK http://dynomotion.com


  2. #14
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    Default Re: KFLOP & Mach3: Configure STEP PER

    Yes Tom, I forgot to write this change in the post.

    With FPGA(STEP_PULSE_LENGTH_ADD) = 32 + 0x80; the motors travel work, but sound a little strange.

    With FPGA(STEP_PULSE_LENGTH_ADD) = 63 + 0x80; all oK



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KFLOP & Mach3: Configure STEP PER

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KFLOP & Mach3: Configure STEP PER