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Original question:

[FAQ] Sticky: MathWorks Solutions for C2000 MCU’s

LAUNCHXL-F28379D: C28x Block in simulink environment outputs TS

Vibhor Kaushik
Prodigy 10 points
Part Number: LAUNCHXL-F28379D


what is the exact unit and sample values that this block outputs for the settings as shown below.

I want to know what values of TS will be output in each of the dimension of the output.

  • 0
    TI__Guru* 81500 points

    Vibhor,

    I believe in this configuration the eCAP will give Time Difference(Delta) for each value of TS, so TS1 would be the active high time of the pulse and TS2 would be active low time.  You would need to scale the numerical output with the eCAP clock + its prescaler(which you have at 0 or no prescale).  I believe the max eCAP clock is equal to SYSCLK, but is derived from PERx.SYSCLK.

    I'll ask the MW team to add their comments in case I've missed something.

    Best,

    Matthew

  • 0
    Prodigy 10 points

    Hi Matthew

    Thanks for your reply. The only difference between your explanation and my understanding is that i believe

    TS1 would give the active low time and TS2 would give the active high time. 

  • 0 in reply to Vibhor Kaushik
    TI__Guru* 81500 points

    Vibhor,

    I've asked some other to give their comment on this one, but it seems they haven't replied yet. 

    I was basing my statement on the example on page 2142 of the Device TRM, but that example is using all 4 CAPs in each eCAP module, so I may have gotten off a bit from your example.  Take a look and see if you think there is a delta in your settings and the example, and I'll see if I can get some more comments from others at TI as well.

    https://www.ti.com/lit/spruhm8

    Best,

    Matthew