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CCS/UCD3138: UCD3138 Sampling point measurement

Part Number: UCD3138

Tool/software: Code Composer Studio

If I want to use an oscilloscope to look at the time points that trigger the sampling , Do you have measurement methods or Suggestions ?

Thanks .

  • The sample trigger is internal of UCD3138, cannot be measured directly. However, you see the control loop performance changes when you change the sample trigger position.

    Regards,
    Bosheng Sun
  • There is no built-in way to measure the position of sample trigger point.

    But if you have extra/spare DPWMs, you could place an event (Edge) where the sample trigger is located, and sync the two DPWM together.

    This way you can know where the sample trigger position is.

    Please note, theses parameters are of the same resolution only if you program the whole register value (.all) and not just the bitfield (.bit)