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Power consumption custom board

erltot

I have put my code developed on a nRF52 dk on a custom board that is based on a ISP1507 CPU. We are having higher current consumption than expected, I use the exact same code on the two boards.

Is there some things I should double check to make sure it is not the new CPU causing trouble?

I have done some research but I am not sure how much of it is still relevant as it is mentioned in a nRF51 context:

  • GPIOTE configuration
  • GPIO pull definitions
  • External resistor on SWDCLK pin
  • Dc/dc regulator settings different for the other board?
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    1. Make sure that you don't have any floating GPIOs.
    2. Resistors on SWD lines shouldn't matter on the nRF52.
    3. If the code is the same then the DCDC should also behave the same.

    What differences in consumption do you see? What amperage are we talking?

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    1. Make sure that you don't have any floating GPIOs.
    2. Resistors on SWD lines shouldn't matter on the nRF52.
    3. If the code is the same then the DCDC should also behave the same.

    What differences in consumption do you see? What amperage are we talking?

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