JLink works on Win10, but not on Ubuntu Gnome 17.04

[Ladasky]

Hello there,

While investigating some issues with getting nRF Connect working on Ubuntu Gnome 17.04, I came across a more fundamental problem.

I now have J-Link V6.16b installed on both Windows 10 and Ubuntu Gnome 17.04, the latest build. A mass storage device named JLink appears in the file systems of both OS's when I connect a PCA 10040 board.

However, I can only connect to the board with the JLink software from Win10. I get a "JLink failed" message when attempting to use JLink from Linux.

I have several PCA 10040 boards, but for this experiment I made sure that I was using the same board both times. There is no chance for the on-board firmware to be different.

The first time that I connected this board to Win10 through JLink, JLink prompted me to make a firmware upgrade, and I did so. JLink from Windows currently reports:

Firmware: J-Link OB-SAM3U128-V2-NordicSemi compiled Jun  9 2017 14:57:23
Hardware version: V1.00

Does anyone have any ideas what might be broken? Thanks!

[RK]

This is really a question for the Segger forums, and they're normally pretty helpful at Segger.

[RK]

have you tried 'sudo jlink' on your linux box, If that works, you probably have the udev permission issue which is discussed in the segger forums.

[Ladasky]

Checking back in to answer my own question. I hope this helps someone else.

It took a long time for Segger to approve my posting privileges on their forums, so I couldn't ask my questions there for a while.

JLink V6.16b had some udev rules issues. A bugfix was quickly released. V6.16f works fine on my system.

[phst36]

Thanks a lot! had the same problem..