Hardware reset doesn't work

Hi there,

I have a custom board featuring the nRF52840. This is the relevant part of the schematic.

When pressing SW1, the SoC doesn't get reset. Seemingly, it's as if I hadn't pushed the button. Why is that?

Thanks in advance!

- Laci

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  • Hi

    Okay, glad to hear you were able to figure it out. Most likely you thought it's better to have a pull-up too many than too few and added it. I agree that it is not necessary and that your solution should work just fine. For our board files in the device tree, the gpio-as-nreset is indeed enabled by default. I was just thinking if you had made a board file or overlay on your own that this might have been missing.

    Let me know if this case can be closed then, or if you have any follow-up questions.

    Best regards,

    Simon

Reply
  • Hi

    Okay, glad to hear you were able to figure it out. Most likely you thought it's better to have a pull-up too many than too few and added it. I agree that it is not necessary and that your solution should work just fine. For our board files in the device tree, the gpio-as-nreset is indeed enabled by default. I was just thinking if you had made a board file or overlay on your own that this might have been missing.

    Let me know if this case can be closed then, or if you have any follow-up questions.

    Best regards,

    Simon

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