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TMS570LC4357: TMS570LC4357

ali riza ictihadi
Prodigy 160 points
Part Number: TMS570LC4357

Tool/software:

Hi;

On page 2005 of TMS570LC43x 16/32-Bit RISC Flash Microcontroller Technical Reference Manual ,TPWM is formulated as TPWM = (TBPRD + 1) x TTBCLK , but it must be TPWM = (TBPRD + 1) / TTBCLK.

  • 0
    TI__Guru 57600 points

    Hi Ali riza,

    The formula looks correct to me and it should be 

    TPWM = (TBPRD + 1) x TTBCLK

    Because here the TBPRD register is just a count, right?

    And time-base counter will increment at each TTBCLK period until it reaches to the TBPRD configured value, once it reaches to this value it will get reset and starts count again.

    So now to calculate TPWM period we should multiply the TTBCLK period with the configured count plus one, right?

    So, the formula for PWM period is correct only: TPWM = (TBPRD + 1) x TTBCLK

    --
    Thanks & regards,
    Jagadish.

  • +1
    Prodigy 160 points

    Dear Jagadish.

    Yes, you are right. I get confused. Thank you very much.