Unable to connect J-link to nRF52832 or nRF52840

[hmuro]

I am trying to flash a NRF52832 using the J-link EDU mini in the Arduino IDE but I am having no luck.

I have successfully downloaded...
1. J-Link Software and documentation pack
2. nRF5x Command-Line Tools

I have added C:\Program Files (x86)\SEGGER to my environment variables.

The J-link commander is able to sense a VTref of 3.2 but it is unable to connect to the target.

The J-link RTT Viewer is set to a USB connection, with a SWD interface and a 4000 KHz speed. It also is unable to connect to the target.

I am able to see JLink in the "Universal Serial Bus controllers" section in the device manager

The Arduino IDE is unable to find the board or burn the bootloader.

I have been troubleshooting with the nrf52840 and the nrf52832 for about 3 long days now with no luck and I don't know what else to try. My final project will be using the nrf52832 but I am troubleshooting with the nrf52840 incase the 10 pin connection header box was soldered on wrong on the nrf52832. The nrf52840 comes with the connection box pre attached.

[Jørgen Holmefjord]

Hi,

The Arduino IDE is not supported by Nordic, and we have not been involved with development of this solution. You may get better help in the Arduino forums.

I was under the impression that the Arduino bootloader uses serial DFU to upload the applications, and that the boards normally comes with this bootloader from the factory. This is of course not the case with the DKs from Nordic, but I was not aware that it was supported to program the bootloader from the IDE over J-Link. Are you following some kind of guide or Tutorial to achieve this?

Best regards,
Jørgen