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TMS320F28075: Does Digital Compare (DC) of an ePWM module automatically ignore the falling edge of the input TRIPx signal?

Pengyuan Chen
Prodigy 110 points
Part Number: TMS320F28075

Hi there,

              I am just told that the Digital Compare (DC) of an ePWM module will not be affected by the falling edge of its TRIPx input signal. I definitely believe that this is true. But I really want to know where I could find documents for illustrating such details.  Thanks a lot.

Regards,

  • 0
    TI__Mastermind 42195 points

    Pengyuan,

    Section 13.11 of the Technical Reference Manual describes the Digital Compare submodule. Figure 13-48 should be helpful. The Digital Compare is level sensitive. Trip signals are brought into the DCTRIPSEL, these are then propagated to DCxH and DCxL depending on the configuration of DCTRIPSEL. DCxEVT1/2 can be triggered by a verity of values on DCxH and DCxL, which depends on the configuration of TZDCSEL.

    Look at Figre 13-48, read the register descriptions for the registers I mentioned above, and come back with any questions you still have!

    Hope it helps,
    Cody

  • 0 in reply to Cody Watkins
    Prodigy 110 points

    Greetings Cody,

    Thank you for the clarifications. I see. Thank you again!

    Best Regards,

    Pengyuan