Unable to flash nrf9160 - is my design correct?

[galook]

Hello,

I have designed this schematic according to reference designs provided by Nordic Semi, however I might have failed as I am unable to flash the main module. I should mention I am a beginner, however not a complete beginner, as I've created functioning PCBs in the past.

I am flashing it using the nrf9161DK via SPI and I am sure the connections are correct. Still, the Programmer app of Nordic SDK doesnt recognize the new board with the nrf9160

Below is the schematic:

Thank you for your help

Matej Holubec

[mathiaso]

Hi, Matej.

When using the nRF9161 DK to program an external board, you should use the SWD connection, as described in the nRF9161 DK's documentation.

If you want to perform DFU on your board using a connection different from SWD, you should check out the Bootloaders and DFU lesson in DevAcademy.

Best regards,
Mathias

[galook]

Yes, sorry I used the wrong term. Of course I used the SWD connectors, in my design headers SWDCLK1 and SWDIO1. What I'd like to know if there is a flaw in this schematic that would explain why it does not work

[mathiaso]

Ok, understood.

Are you sure you've made the connections exactly as in the documentation? Are you using a custom connection or a standard 10-pin connector?

What error do you get when attempting to flash?