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Custom board not being recognized

Hi,

I have created a custom board with an NRF52832 chip on. Either programming via ULINK2 or the DK PCA10040 is no succes, board won't be recognized although it is powered.

Checked all support tickets around this subject, and wiring is set up okay including SWCLK, SWDIO, VTG GND. What else can be checked in hardware or wiring what could be the issue?

I have used the reference circuit diagram for the NRF52832 dcdc schematic.

Thanks.

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  • Hi,

     

     

    I have created a custom board with an NRF52832 chip on. Either programming via ULINK2 or the DK PCA10040 is no succes, board won't be recognized although it is powered.

    Checked all support tickets around this subject, and wiring is set up okay including SWCLK, SWDIO, VTG GND. What else can be checked in hardware or wiring what could be the issue?

     

    Did you connect your board like this?

    https://devzone.nordicsemi.com/f/nordic-q-a/14058/external-programming-using-nrf52-dk/53757#53757

     

    Note the shorted VTG to VDD, as this will force the nRF52-DK to use this specific debug port, and it will also provide power over the VTG pin. One of the pitfalls of using the nRF52-DK to program externally is that the voltage on your custom board must match the nRF5-DK, so its easier to just power your board from the DK itself.

     

    Kind regards,

    Håkon

Reply
  • Hi,

     

     

    I have created a custom board with an NRF52832 chip on. Either programming via ULINK2 or the DK PCA10040 is no succes, board won't be recognized although it is powered.

    Checked all support tickets around this subject, and wiring is set up okay including SWCLK, SWDIO, VTG GND. What else can be checked in hardware or wiring what could be the issue?

     

    Did you connect your board like this?

    https://devzone.nordicsemi.com/f/nordic-q-a/14058/external-programming-using-nrf52-dk/53757#53757

     

    Note the shorted VTG to VDD, as this will force the nRF52-DK to use this specific debug port, and it will also provide power over the VTG pin. One of the pitfalls of using the nRF52-DK to program externally is that the voltage on your custom board must match the nRF5-DK, so its easier to just power your board from the DK itself.

     

    Kind regards,

    Håkon

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