nRF9161 DK v0.9.1

Firmware development mode

The primary interface for programming and debugging the nRF9161 DK is the Universal Serial Bus (USB) port (J6). The USB port is connected to an interface MCU which embeds a SEGGER J-Link-OB (Onboard) debug probe.

The following figure shows the interfaces used in firmware development mode.

Figure 1. Firmware development mode
nRF9161 DK firmware development mode