Burning bootloader to custom board

Projects Programming
1

Hi,

For a custom board with a Raytac MDBT50Q SoC I want to burn a bootloader. This is the same SoC as on the Adafruit Feather nRF52840 board. When I burn the bootloader with a J-Link programmer via the Arduino IDE to that board everything goes fine. However when I try to burn the same bootloader to my custom board I am getting the error message:

ERROR: The --family option given with the command (or the default from
ERROR: nrfjprog.ini) does not match the device connected.
Failed to burn bootloader: uploading error: exit status 18

What can I do to get the bootloader burned to my custom board?

Thanks,

Tjerk

2

You should probably start by sharing info on the custom board.

3

From the J-Link I have GND, SWDIO, SWDCLK, RESET and 3V3 connected to my custom board. Or is SWO also necessary for burning the bootloader?

4

It appeared that the MDBT50Q has multiple versions. The one on the Adafruit Feather nRF52840 is the MDBT50Q-1MV2 (with a Nordic nRF52840 SoC). On my board I have the MDBT50Q-512K which has a nRF52833 SoC. So that is the reason the bootloader failed to burn!
I now changed the code to the nRF52833 but then get the following error: KeyError: "Invalid board option 'build.softdevice.sd_fwid'. Anyone who knows how to solve this?

Thanks,

Tjerk

5

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