12f683 variable HPWM and fixed pulse tick thickness

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  1. - 20th February 2015, 08:16 #3
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    Default Re: 12f683 variable HPWM and fixed pulse tick thickness

    Hi,

    With the internal osc , even @ 8Mhz, HPWM definitly is not what to use ... so is pure basic ...

    with 10ms steps ... you'd better use PAUSEUS to generate the pulse ( need 16 Mhz ext osc ! ... or 8 asm NOP's @ 8Mhz ), and a timer to generate an interrupt every 10 ms that will change the pause beetween pulses ...

    see Darrel's Instant Interrupts for easy interrupts ...

    May be also a very very smart solution with the COMPARE mode of the CCP that can change the CCP outpin and set the CCPIF just when pause ends ...

    Alain
    Last edited by Acetronics2; - 20th February 2015 at 08:24.
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