Problems with JLink + AT SAMD chips have been known for a long time (Problems starting debug session with jlink on feather M0). Does it work without any additional launch file if you press the restart button as indicated in this topic?
Problems with JLink + AT SAMD chips have been known for a long time (Problems starting debug session with jlink on feather M0). Does it work without any additional launch file if you press the restart button as indicated in this topic?